Source file src/crypto/x509/x509_test.go

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package x509
     6  
     7  import (
     8  	"bytes"
     9  	"crypto"
    10  	"crypto/dsa"
    11  	"crypto/ecdh"
    12  	"crypto/ecdsa"
    13  	"crypto/ed25519"
    14  	"crypto/elliptic"
    15  	"crypto/fips140"
    16  	"crypto/internal/cryptotest"
    17  	"crypto/mldsa"
    18  	"crypto/mlkem"
    19  	"crypto/rand"
    20  	"crypto/rsa"
    21  	_ "crypto/sha256"
    22  	_ "crypto/sha512"
    23  	"crypto/x509/pkix"
    24  	"encoding/asn1"
    25  	"encoding/base64"
    26  	"encoding/gob"
    27  	"encoding/hex"
    28  	"encoding/pem"
    29  	"errors"
    30  	"fmt"
    31  	"internal/testenv"
    32  	"io"
    33  	"math"
    34  	"math/big"
    35  	"net"
    36  	"net/url"
    37  	"reflect"
    38  	"runtime"
    39  	"slices"
    40  	"strings"
    41  	"testing"
    42  	"time"
    43  )
    44  
    45  func TestParsePKCS1PrivateKey(t *testing.T) {
    46  	block, _ := pem.Decode([]byte(pemPrivateKey))
    47  	priv, err := ParsePKCS1PrivateKey(block.Bytes)
    48  	if err != nil {
    49  		t.Errorf("Failed to parse private key: %s", err)
    50  		return
    51  	}
    52  	if priv.PublicKey.N.Cmp(rsaPrivateKey.PublicKey.N) != 0 ||
    53  		priv.PublicKey.E != rsaPrivateKey.PublicKey.E ||
    54  		priv.D.Cmp(rsaPrivateKey.D) != 0 ||
    55  		priv.Primes[0].Cmp(rsaPrivateKey.Primes[0]) != 0 ||
    56  		priv.Primes[1].Cmp(rsaPrivateKey.Primes[1]) != 0 {
    57  		t.Errorf("got:%+v want:%+v", priv, rsaPrivateKey)
    58  	}
    59  
    60  	// This private key includes an invalid prime that
    61  	// rsa.PrivateKey.Validate should reject.
    62  	data := []byte("0\x16\x02\x00\x02\x02\u007f\x00\x02\x0200\x02\x0200\x02\x02\x00\x01\x02\x02\u007f\x00")
    63  	if _, err := ParsePKCS1PrivateKey(data); err == nil {
    64  		t.Errorf("parsing invalid private key did not result in an error")
    65  	}
    66  
    67  	// A partial key without CRT values should still parse.
    68  	b, _ := asn1.Marshal(struct {
    69  		Version int
    70  		N       *big.Int
    71  		E       int
    72  		D       *big.Int
    73  		P       *big.Int
    74  		Q       *big.Int
    75  	}{
    76  		N: priv.N,
    77  		E: priv.PublicKey.E,
    78  		D: priv.D,
    79  		P: priv.Primes[0],
    80  		Q: priv.Primes[1],
    81  	})
    82  	p2, err := ParsePKCS1PrivateKey(b)
    83  	if err != nil {
    84  		t.Fatalf("parsing partial private key resulted in an error: %v", err)
    85  	}
    86  	if !p2.Equal(priv) {
    87  		t.Errorf("partial private key did not match original key")
    88  	}
    89  	if p2.Precomputed.Dp == nil || p2.Precomputed.Dq == nil || p2.Precomputed.Qinv == nil {
    90  		t.Errorf("precomputed values not recomputed")
    91  	}
    92  }
    93  
    94  func TestPKCS1MismatchPublicKeyFormat(t *testing.T) {
    95  
    96  	const pkixPublicKey = "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"
    97  	const errorContains = "use ParsePKIXPublicKey instead"
    98  	derBytes, _ := hex.DecodeString(pkixPublicKey)
    99  	_, err := ParsePKCS1PublicKey(derBytes)
   100  	if !strings.Contains(err.Error(), errorContains) {
   101  		t.Errorf("expected error containing %q, got %s", errorContains, err)
   102  	}
   103  }
   104  
   105  func TestMarshalInvalidPublicKey(t *testing.T) {
   106  	_, err := MarshalPKIXPublicKey(&ecdsa.PublicKey{})
   107  	if err == nil {
   108  		t.Errorf("expected error, got MarshalPKIXPublicKey success")
   109  	}
   110  	_, err = MarshalPKIXPublicKey(&ecdsa.PublicKey{
   111  		Curve: elliptic.P256(),
   112  		X:     big.NewInt(1), Y: big.NewInt(2),
   113  	})
   114  	if err == nil {
   115  		t.Errorf("expected error, got MarshalPKIXPublicKey success")
   116  	}
   117  }
   118  
   119  func testParsePKIXPublicKey(t *testing.T, pemBytes string) (pub any) {
   120  	block, _ := pem.Decode([]byte(pemBytes))
   121  	pub, err := ParsePKIXPublicKey(block.Bytes)
   122  	if err != nil {
   123  		t.Fatalf("Failed to parse public key: %s", err)
   124  	}
   125  
   126  	pubBytes2, err := MarshalPKIXPublicKey(pub)
   127  	if err != nil {
   128  		t.Errorf("Failed to marshal public key for the second time: %s", err)
   129  		return
   130  	}
   131  	if !bytes.Equal(pubBytes2, block.Bytes) {
   132  		t.Errorf("Reserialization of public key didn't match. got %x, want %x", pubBytes2, block.Bytes)
   133  	}
   134  	return
   135  }
   136  
   137  func TestParsePKIXPublicKey(t *testing.T) {
   138  	t.Run("RSA", func(t *testing.T) {
   139  		pub := testParsePKIXPublicKey(t, pemPublicKey)
   140  		_, ok := pub.(*rsa.PublicKey)
   141  		if !ok {
   142  			t.Errorf("Value returned from ParsePKIXPublicKey was not an RSA public key")
   143  		}
   144  	})
   145  	t.Run("Ed25519", func(t *testing.T) {
   146  		pub := testParsePKIXPublicKey(t, pemEd25519Key)
   147  		_, ok := pub.(ed25519.PublicKey)
   148  		if !ok {
   149  			t.Errorf("Value returned from ParsePKIXPublicKey was not an Ed25519 public key")
   150  		}
   151  	})
   152  	t.Run("X25519", func(t *testing.T) {
   153  		pub := testParsePKIXPublicKey(t, pemX25519Key)
   154  		k, ok := pub.(*ecdh.PublicKey)
   155  		if !ok || k.Curve() != ecdh.X25519() {
   156  			t.Errorf("Value returned from ParsePKIXPublicKey was not an X25519 public key")
   157  		}
   158  	})
   159  }
   160  
   161  var pemPublicKey = `-----BEGIN PUBLIC KEY-----
   162  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3VoPN9PKUjKFLMwOge6+
   163  wnDi8sbETGIx2FKXGgqtAKpzmem53kRGEQg8WeqRmp12wgp74TGpkEXsGae7RS1k
   164  enJCnma4fii+noGH7R0qKgHvPrI2Bwa9hzsH8tHxpyM3qrXslOmD45EH9SxIDUBJ
   165  FehNdaPbLP1gFyahKMsdfxFJLUvbUycuZSJ2ZnIgeVxwm4qbSvZInL9Iu4FzuPtg
   166  fINKcbbovy1qq4KvPIrXzhbY3PWDc6btxCf3SE0JdE1MCPThntB62/bLMSQ7xdDR
   167  FF53oIpvxe/SCOymfWq/LW849Ytv3Xwod0+wzAP8STXG4HSELS4UedPYeHJJJYcZ
   168  +QIDAQAB
   169  -----END PUBLIC KEY-----
   170  `
   171  
   172  var pemPrivateKey = testingKey(`
   173  -----BEGIN RSA TESTING KEY-----
   174  MIICXAIBAAKBgQCxoeCUW5KJxNPxMp+KmCxKLc1Zv9Ny+4CFqcUXVUYH69L3mQ7v
   175  IWrJ9GBfcaA7BPQqUlWxWM+OCEQZH1EZNIuqRMNQVuIGCbz5UQ8w6tS0gcgdeGX7
   176  J7jgCQ4RK3F/PuCM38QBLaHx988qG8NMc6VKErBjctCXFHQt14lerd5KpQIDAQAB
   177  AoGAYrf6Hbk+mT5AI33k2Jt1kcweodBP7UkExkPxeuQzRVe0KVJw0EkcFhywKpr1
   178  V5eLMrILWcJnpyHE5slWwtFHBG6a5fLaNtsBBtcAIfqTQ0Vfj5c6SzVaJv0Z5rOd
   179  7gQF6isy3t3w9IF3We9wXQKzT6q5ypPGdm6fciKQ8RnzREkCQQDZwppKATqQ41/R
   180  vhSj90fFifrGE6aVKC1hgSpxGQa4oIdsYYHwMzyhBmWW9Xv/R+fPyr8ZwPxp2c12
   181  33QwOLPLAkEA0NNUb+z4ebVVHyvSwF5jhfJxigim+s49KuzJ1+A2RaSApGyBZiwS
   182  rWvWkB471POAKUYt5ykIWVZ83zcceQiNTwJBAMJUFQZX5GDqWFc/zwGoKkeR49Yi
   183  MTXIvf7Wmv6E++eFcnT461FlGAUHRV+bQQXGsItR/opIG7mGogIkVXa3E1MCQARX
   184  AAA7eoZ9AEHflUeuLn9QJI/r0hyQQLEtrpwv6rDT1GCWaLII5HJ6NUFVf4TTcqxo
   185  6vdM4QGKTJoO+SaCyP0CQFdpcxSAuzpFcKv0IlJ8XzS/cy+mweCMwyJ1PFEc4FX6
   186  wg/HcAJWY60xZTJDFN+Qfx8ZQvBEin6c2/h+zZi5IVY=
   187  -----END RSA TESTING KEY-----
   188  `)
   189  
   190  // pemEd25519Key is the example from RFC 8410, Section 4.
   191  var pemEd25519Key = `
   192  -----BEGIN PUBLIC KEY-----
   193  MCowBQYDK2VwAyEAGb9ECWmEzf6FQbrBZ9w7lshQhqowtrbLDFw4rXAxZuE=
   194  -----END PUBLIC KEY-----
   195  `
   196  
   197  // pemX25519Key was generated from pemX25519Key with "openssl pkey -pubout".
   198  var pemX25519Key = `
   199  -----BEGIN PUBLIC KEY-----
   200  MCowBQYDK2VuAyEA5yGXrH/6OzxuWEhEWS01/f4OP+Of3Yrddy6/J1kDTVM=
   201  -----END PUBLIC KEY-----
   202  `
   203  
   204  func TestPKIXMismatchPublicKeyFormat(t *testing.T) {
   205  
   206  	const pkcs1PublicKey = "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"
   207  	const errorContains = "use ParsePKCS1PublicKey instead"
   208  	derBytes, _ := hex.DecodeString(pkcs1PublicKey)
   209  	_, err := ParsePKIXPublicKey(derBytes)
   210  	if !strings.Contains(err.Error(), errorContains) {
   211  		t.Errorf("expected error containing %q, got %s", errorContains, err)
   212  	}
   213  }
   214  
   215  var testPrivateKey *rsa.PrivateKey
   216  
   217  func init() {
   218  	block, _ := pem.Decode([]byte(pemPrivateKey))
   219  
   220  	var err error
   221  	if testPrivateKey, err = ParsePKCS1PrivateKey(block.Bytes); err != nil {
   222  		panic("Failed to parse private key: " + err.Error())
   223  	}
   224  }
   225  
   226  func bigFromString(s string) *big.Int {
   227  	ret := new(big.Int)
   228  	ret.SetString(s, 10)
   229  	return ret
   230  }
   231  
   232  func fromBase10(base10 string) *big.Int {
   233  	i := new(big.Int)
   234  	i.SetString(base10, 10)
   235  	return i
   236  }
   237  
   238  func bigFromHexString(s string) *big.Int {
   239  	ret := new(big.Int)
   240  	ret.SetString(s, 16)
   241  	return ret
   242  }
   243  
   244  var rsaPrivateKey = &rsa.PrivateKey{
   245  	PublicKey: rsa.PublicKey{
   246  		N: bigFromString("124737666279038955318614287965056875799409043964547386061640914307192830334599556034328900586693254156136128122194531292927142396093148164407300419162827624945636708870992355233833321488652786796134504707628792159725681555822420087112284637501705261187690946267527866880072856272532711620639179596808018872997"),
   247  		E: 65537,
   248  	},
   249  	D: bigFromString("69322600686866301945688231018559005300304807960033948687567105312977055197015197977971637657636780793670599180105424702854759606794705928621125408040473426339714144598640466128488132656829419518221592374964225347786430566310906679585739468938549035854760501049443920822523780156843263434219450229353270690889"),
   250  	Primes: []*big.Int{
   251  		bigFromString("11405025354575369741595561190164746858706645478381139288033759331174478411254205003127028642766986913445391069745480057674348716675323735886284176682955723"),
   252  		bigFromString("10937079261204603443118731009201819560867324167189758120988909645641782263430128449826989846631183550578761324239709121189827307416350485191350050332642639"),
   253  	},
   254  }
   255  
   256  func TestMarshalRSAPrivateKey(t *testing.T) {
   257  	priv := &rsa.PrivateKey{
   258  		PublicKey: rsa.PublicKey{
   259  			N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"),
   260  			E: 3,
   261  		},
   262  		D: fromBase10("10897585948254795600358846499957366070880176878341177571733155050184921896034527397712889205732614568234385175145686545381899460748279607074689061600935843283397424506622998458510302603922766336783617368686090042765718290914099334449154829375179958369993407724946186243249568928237086215759259909861748642124071874879861299389874230489928271621259294894142840428407196932444474088857746123104978617098858619445675532587787023228852383149557470077802718705420275739737958953794088728369933811184572620857678792001136676902250566845618813972833750098806496641114644760255910789397593428910198080271317419213080834885003"),
   263  		Primes: []*big.Int{
   264  			fromBase10("1025363189502892836833747188838978207017355117492483312747347695538428729137306368764177201532277413433182799108299960196606011786562992097313508180436744488171474690412562218914213688661311117337381958560443"),
   265  			fromBase10("3467903426626310123395340254094941045497208049900750380025518552334536945536837294961497712862519984786362199788654739924501424784631315081391467293694361474867825728031147665777546570788493758372218019373"),
   266  			fromBase10("4597024781409332673052708605078359346966325141767460991205742124888960305710298765592730135879076084498363772408626791576005136245060321874472727132746643162385746062759369754202494417496879741537284589047"),
   267  		},
   268  	}
   269  
   270  	derBytes := MarshalPKCS1PrivateKey(priv)
   271  
   272  	priv2, err := ParsePKCS1PrivateKey(derBytes)
   273  	if err != nil {
   274  		t.Errorf("error parsing serialized key: %s", err)
   275  		return
   276  	}
   277  	if priv.PublicKey.N.Cmp(priv2.PublicKey.N) != 0 ||
   278  		priv.PublicKey.E != priv2.PublicKey.E ||
   279  		priv.D.Cmp(priv2.D) != 0 ||
   280  		len(priv2.Primes) != 3 ||
   281  		priv.Primes[0].Cmp(priv2.Primes[0]) != 0 ||
   282  		priv.Primes[1].Cmp(priv2.Primes[1]) != 0 ||
   283  		priv.Primes[2].Cmp(priv2.Primes[2]) != 0 {
   284  		t.Errorf("wrong priv:\ngot  %+v\nwant %+v", priv2, priv)
   285  	}
   286  
   287  	if priv.Precomputed.Dp == nil {
   288  		t.Fatalf("Precomputed.Dp is nil")
   289  	}
   290  }
   291  
   292  func TestMarshalRSAPrivateKeyInvalid(t *testing.T) {
   293  	block, _ := pem.Decode([]byte(strings.ReplaceAll(
   294  		`-----BEGIN RSA TESTING KEY-----
   295  MIIEowIBAAKCAQEAsPnoGUOnrpiSqt4XynxA+HRP7S+BSObI6qJ7fQAVSPtRkqso
   296  tWxQYLEYzNEx5ZSHTGypibVsJylvCfuToDTfMul8b/CZjP2Ob0LdpYrNH6l5hvFE
   297  89FU1nZQF15oVLOpUgA7wGiHuEVawrGfey92UE68mOyUVXGweJIVDdxqdMoPvNNU
   298  l86BU02vlBiESxOuox+dWmuVV7vfYZ79Toh/LUK43YvJh+rhv4nKuF7iHjVjBd9s
   299  B6iDjj70HFldzOQ9r8SRI+9NirupPTkF5AKNe6kUhKJ1luB7S27ZkvB3tSTT3P59
   300  3VVJvnzOjaA1z6Cz+4+eRvcysqhrRgFlwI9TEwIDAQABAoIBAEEYiyDP29vCzx/+
   301  dS3LqnI5BjUuJhXUnc6AWX/PCgVAO+8A+gZRgvct7PtZb0sM6P9ZcLrweomlGezI
   302  FrL0/6xQaa8bBr/ve/a8155OgcjFo6fZEw3Dz7ra5fbSiPmu4/b/kvrg+Br1l77J
   303  aun6uUAs1f5B9wW+vbR7tzbT/mxaUeDiBzKpe15GwcvbJtdIVMa2YErtRjc1/5B2
   304  BGVXyvlJv0SIlcIEMsHgnAFOp1ZgQ08aDzvilLq8XVMOahAhP1O2A3X8hKdXPyrx
   305  IVWE9bS9ptTo+eF6eNl+d7htpKGEZHUxinoQpWEBTv+iOoHsVunkEJ3vjLP3lyI/
   306  fY0NQ1ECgYEA3RBXAjgvIys2gfU3keImF8e/TprLge1I2vbWmV2j6rZCg5r/AS0u
   307  pii5CvJ5/T5vfJPNgPBy8B/yRDs+6PJO1GmnlhOkG9JAIPkv0RBZvR0PMBtbp6nT
   308  Y3yo1lwamBVBfY6rc0sLTzosZh2aGoLzrHNMQFMGaauORzBFpY5lU50CgYEAzPHl
   309  u5DI6Xgep1vr8QvCUuEesCOgJg8Yh1UqVoY/SmQh6MYAv1I9bLGwrb3WW/7kqIoD
   310  fj0aQV5buVZI2loMomtU9KY5SFIsPV+JuUpy7/+VE01ZQM5FdY8wiYCQiVZYju9X
   311  Wz5LxMNoz+gT7pwlLCsC4N+R8aoBk404aF1gum8CgYAJ7VTq7Zj4TFV7Soa/T1eE
   312  k9y8a+kdoYk3BASpCHJ29M5R2KEA7YV9wrBklHTz8VzSTFTbKHEQ5W5csAhoL5Fo
   313  qoHzFFi3Qx7MHESQb9qHyolHEMNx6QdsHUn7rlEnaTTyrXh3ifQtD6C0yTmFXUIS
   314  CW9wKApOrnyKJ9nI0HcuZQKBgQCMtoV6e9VGX4AEfpuHvAAnMYQFgeBiYTkBKltQ
   315  XwozhH63uMMomUmtSG87Sz1TmrXadjAhy8gsG6I0pWaN7QgBuFnzQ/HOkwTm+qKw
   316  AsrZt4zeXNwsH7QXHEJCFnCmqw9QzEoZTrNtHJHpNboBuVnYcoueZEJrP8OnUG3r
   317  UjmopwKBgAqB2KYYMUqAOvYcBnEfLDmyZv9BTVNHbR2lKkMYqv5LlvDaBxVfilE0
   318  2riO4p6BaAdvzXjKeRrGNEKoHNBpOSfYCOM16NjL8hIZB1CaV3WbT5oY+jp7Mzd5
   319  7d56RZOE+ERK2uz/7JX9VSsM/LbH9pJibd4e8mikDS9ntciqOH/3
   320  -----END RSA TESTING KEY-----`, "TESTING KEY", "PRIVATE KEY")))
   321  	testRSA2048, _ := ParsePKCS1PrivateKey(block.Bytes)
   322  
   323  	broken := *testRSA2048
   324  	broken.Precomputed.Dp = new(big.Int).SetUint64(42)
   325  
   326  	parsed, err := ParsePKCS1PrivateKey(MarshalPKCS1PrivateKey(&broken))
   327  	if err == nil {
   328  		t.Errorf("expected error, got success")
   329  	}
   330  
   331  	t.Setenv("GODEBUG", "x509rsacrt=0")
   332  
   333  	parsed, err = ParsePKCS1PrivateKey(MarshalPKCS1PrivateKey(&broken))
   334  	if err != nil {
   335  		t.Fatalf("expected success, got error: %v", err)
   336  	}
   337  	// Dp should have been recomputed.
   338  	if parsed.Precomputed.Dp.Cmp(testRSA2048.Precomputed.Dp) != 0 {
   339  		t.Errorf("Dp recomputation failed: got %v, want %v", parsed.Precomputed.Dp, testRSA2048.Precomputed.Dp)
   340  	}
   341  }
   342  
   343  func TestMarshalRSAPublicKey(t *testing.T) {
   344  	pub := &rsa.PublicKey{
   345  		N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"),
   346  		E: 3,
   347  	}
   348  	derBytes := MarshalPKCS1PublicKey(pub)
   349  	pub2, err := ParsePKCS1PublicKey(derBytes)
   350  	if err != nil {
   351  		t.Errorf("ParsePKCS1PublicKey: %s", err)
   352  	}
   353  	if pub.N.Cmp(pub2.N) != 0 || pub.E != pub2.E {
   354  		t.Errorf("ParsePKCS1PublicKey = %+v, want %+v", pub, pub2)
   355  	}
   356  
   357  	// It's never been documented that asn1.Marshal/Unmarshal on rsa.PublicKey works,
   358  	// but it does, and we know of code that depends on it.
   359  	// Lock that in, even though we'd prefer that people use MarshalPKCS1PublicKey and ParsePKCS1PublicKey.
   360  	derBytes2, err := asn1.Marshal(*pub)
   361  	if err != nil {
   362  		t.Errorf("Marshal(rsa.PublicKey): %v", err)
   363  	} else if !bytes.Equal(derBytes, derBytes2) {
   364  		t.Errorf("Marshal(rsa.PublicKey) = %x, want %x", derBytes2, derBytes)
   365  	}
   366  	pub3 := new(rsa.PublicKey)
   367  	rest, err := asn1.Unmarshal(derBytes, pub3)
   368  	if err != nil {
   369  		t.Errorf("Unmarshal(rsa.PublicKey): %v", err)
   370  	}
   371  	if len(rest) != 0 || pub.N.Cmp(pub3.N) != 0 || pub.E != pub3.E {
   372  		t.Errorf("Unmarshal(rsa.PublicKey) = %+v, %q want %+v, %q", pub, rest, pub2, []byte(nil))
   373  	}
   374  
   375  	publicKeys := []struct {
   376  		derBytes          []byte
   377  		expectedErrSubstr string
   378  	}{
   379  		{
   380  			derBytes: []byte{
   381  				0x30, 6, // SEQUENCE, 6 bytes
   382  				0x02, 1, // INTEGER, 1 byte
   383  				17,
   384  				0x02, 1, // INTEGER, 1 byte
   385  				3, // 3
   386  			},
   387  		}, {
   388  			derBytes: []byte{
   389  				0x30, 6, // SEQUENCE
   390  				0x02, 1, // INTEGER, 1 byte
   391  				0xff,    // -1
   392  				0x02, 1, // INTEGER, 1 byte
   393  				3,
   394  			},
   395  			expectedErrSubstr: "zero or negative",
   396  		}, {
   397  			derBytes: []byte{
   398  				0x30, 6, // SEQUENCE
   399  				0x02, 1, // INTEGER, 1 byte
   400  				17,
   401  				0x02, 1, // INTEGER, 1 byte
   402  				0xff, // -1
   403  			},
   404  			expectedErrSubstr: "zero or negative",
   405  		}, {
   406  			derBytes: []byte{
   407  				0x30, 6, // SEQUENCE
   408  				0x02, 1, // INTEGER, 1 byte
   409  				17,
   410  				0x02, 1, // INTEGER, 1 byte
   411  				3,
   412  				1,
   413  			},
   414  			expectedErrSubstr: "trailing data",
   415  		}, {
   416  			derBytes: []byte{
   417  				0x30, 9, // SEQUENCE
   418  				0x02, 1, // INTEGER, 1 byte
   419  				17,
   420  				0x02, 4, // INTEGER, 4 bytes
   421  				0x7f, 0xff, 0xff, 0xff,
   422  			},
   423  		}, {
   424  			derBytes: []byte{
   425  				0x30, 10, // SEQUENCE
   426  				0x02, 1, // INTEGER, 1 byte
   427  				17,
   428  				0x02, 5, // INTEGER, 5 bytes
   429  				0x00, 0x80, 0x00, 0x00, 0x00,
   430  			},
   431  			// On 64-bit systems, encoding/asn1 will accept the
   432  			// public exponent, but ParsePKCS1PublicKey will return
   433  			// an error. On 32-bit systems, encoding/asn1 will
   434  			// return the error. The common substring of both error
   435  			// is the word “large”.
   436  			expectedErrSubstr: "large",
   437  		},
   438  	}
   439  
   440  	for i, test := range publicKeys {
   441  		shouldFail := len(test.expectedErrSubstr) > 0
   442  		pub, err := ParsePKCS1PublicKey(test.derBytes)
   443  		if shouldFail {
   444  			if err == nil {
   445  				t.Errorf("#%d: unexpected success, got %#v", i, pub)
   446  			} else if !strings.Contains(err.Error(), test.expectedErrSubstr) {
   447  				t.Errorf("#%d: expected error containing %q, got %s", i, test.expectedErrSubstr, err)
   448  			}
   449  		} else {
   450  			if err != nil {
   451  				t.Errorf("#%d: unexpected failure: %s", i, err)
   452  				continue
   453  			}
   454  			reserialized := MarshalPKCS1PublicKey(pub)
   455  			if !bytes.Equal(reserialized, test.derBytes) {
   456  				t.Errorf("#%d: failed to reserialize: got %x, expected %x", i, reserialized, test.derBytes)
   457  			}
   458  		}
   459  	}
   460  }
   461  
   462  type matchHostnamesTest struct {
   463  	pattern, host string
   464  	ok            bool
   465  }
   466  
   467  var matchHostnamesTests = []matchHostnamesTest{
   468  	{"a.b.c", "a.b.c", true},
   469  	{"a.b.c", "b.b.c", false},
   470  	{"", "b.b.c", false},
   471  	{"a.b.c", "", false},
   472  	{"example.com", "example.com", true},
   473  	{"example.com", "www.example.com", false},
   474  	{"*.example.com", "example.com", false},
   475  	{"*.example.com", "www.example.com", true},
   476  	{"*.example.com", "www.example.com.", true},
   477  	{"*.example.com", "xyz.www.example.com", false},
   478  	{"*.example.com", "https://www.example.com", false}, // Issue 27591
   479  	{"*.example..com", "www.example..com", false},
   480  	{"www.example..com", "www.example..com", true},
   481  	{"*.*.example.com", "xyz.www.example.com", false},
   482  	{"*.www.*.com", "xyz.www.example.com", false},
   483  	{"*bar.example.com", "foobar.example.com", false},
   484  	{"f*.example.com", "foobar.example.com", false},
   485  	{"www.example.com", "*.example.com", false},
   486  	{"", ".", false},
   487  	{".", "", false},
   488  	{".", ".", false},
   489  	{"example.com", "example.com.", true},
   490  	{"example.com.", "example.com", false},
   491  	{"example.com.", "example.com.", true}, // perfect matches allow trailing dots in patterns
   492  	{"*.com.", "example.com.", false},
   493  	{"*.com.", "example.com", false},
   494  	{"*.com", "example.com", true},
   495  	{"*.com", "example.com.", true},
   496  	{"foo:bar", "foo:bar", true},
   497  	{"*.foo:bar", "xxx.foo:bar", false},
   498  	{"*.2.3.4", "1.2.3.4", false},
   499  	{"*.2.3.4", "[1.2.3.4]", false},
   500  	{"*:4860:4860::8888", "2001:4860:4860::8888", false},
   501  	{"*:4860:4860::8888", "[2001:4860:4860::8888]", false},
   502  	{"2001:4860:4860::8888", "2001:4860:4860::8888", false},
   503  	{"2001:4860:4860::8888", "[2001:4860:4860::8888]", false},
   504  	{"[2001:4860:4860::8888]", "2001:4860:4860::8888", false},
   505  	{"[2001:4860:4860::8888]", "[2001:4860:4860::8888]", false},
   506  }
   507  
   508  func TestMatchHostnames(t *testing.T) {
   509  	for i, test := range matchHostnamesTests {
   510  		c := &Certificate{DNSNames: []string{test.pattern}}
   511  		r := c.VerifyHostname(test.host) == nil
   512  		if r != test.ok {
   513  			t.Errorf("#%d mismatch got: %t want: %t when matching '%s' against '%s'", i, r, test.ok, test.host, test.pattern)
   514  		}
   515  	}
   516  }
   517  
   518  func TestMatchIP(t *testing.T) {
   519  	// Check that pattern matching is working.
   520  	c := &Certificate{
   521  		DNSNames: []string{"*.foo.bar.baz"},
   522  		Subject: pkix.Name{
   523  			CommonName: "*.foo.bar.baz",
   524  		},
   525  	}
   526  	err := c.VerifyHostname("quux.foo.bar.baz")
   527  	if err != nil {
   528  		t.Fatalf("VerifyHostname(quux.foo.bar.baz): %v", err)
   529  	}
   530  
   531  	// But check that if we change it to be matching against an IP address,
   532  	// it is rejected.
   533  	c = &Certificate{
   534  		DNSNames: []string{"*.2.3.4"},
   535  		Subject: pkix.Name{
   536  			CommonName: "*.2.3.4",
   537  		},
   538  	}
   539  	err = c.VerifyHostname("1.2.3.4")
   540  	if err == nil {
   541  		t.Fatalf("VerifyHostname(1.2.3.4) should have failed, did not")
   542  	}
   543  
   544  	c = &Certificate{
   545  		IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("::1")},
   546  	}
   547  	err = c.VerifyHostname("127.0.0.1")
   548  	if err != nil {
   549  		t.Fatalf("VerifyHostname(127.0.0.1): %v", err)
   550  	}
   551  	err = c.VerifyHostname("::1")
   552  	if err != nil {
   553  		t.Fatalf("VerifyHostname(::1): %v", err)
   554  	}
   555  	err = c.VerifyHostname("[::1]")
   556  	if err != nil {
   557  		t.Fatalf("VerifyHostname([::1]): %v", err)
   558  	}
   559  }
   560  
   561  func TestCertificateParse(t *testing.T) {
   562  	s, _ := base64.StdEncoding.DecodeString(certBytes)
   563  	certs, err := ParseCertificates(s)
   564  	if err != nil {
   565  		t.Error(err)
   566  	}
   567  	if len(certs) != 2 {
   568  		t.Errorf("Wrong number of certs: got %d want 2", len(certs))
   569  		return
   570  	}
   571  
   572  	err = certs[0].CheckSignatureFrom(certs[1])
   573  	if err != nil {
   574  		t.Error(err)
   575  	}
   576  
   577  	if err := certs[0].VerifyHostname("mail.google.com"); err != nil {
   578  		t.Error(err)
   579  	}
   580  
   581  	const expectedExtensions = 10
   582  	if n := len(certs[0].Extensions); n != expectedExtensions {
   583  		t.Errorf("want %d extensions, got %d", expectedExtensions, n)
   584  	}
   585  }
   586  
   587  func TestCertificateEqualOnNil(t *testing.T) {
   588  	cNonNil := new(Certificate)
   589  	var cNil1, cNil2 *Certificate
   590  	if !cNil1.Equal(cNil2) {
   591  		t.Error("Nil certificates: cNil1 is not equal to cNil2")
   592  	}
   593  	if !cNil2.Equal(cNil1) {
   594  		t.Error("Nil certificates: cNil2 is not equal to cNil1")
   595  	}
   596  	if cNil1.Equal(cNonNil) {
   597  		t.Error("Unexpectedly cNil1 is equal to cNonNil")
   598  	}
   599  	if cNonNil.Equal(cNil1) {
   600  		t.Error("Unexpectedly cNonNil is equal to cNil1")
   601  	}
   602  }
   603  
   604  func TestMismatchedSignatureAlgorithm(t *testing.T) {
   605  	der, _ := pem.Decode([]byte(rsaPSSSelfSignedPEM))
   606  	if der == nil {
   607  		t.Fatal("Failed to find PEM block")
   608  	}
   609  
   610  	cert, err := ParseCertificate(der.Bytes)
   611  	if err != nil {
   612  		t.Fatal(err)
   613  	}
   614  
   615  	if err = cert.CheckSignature(ECDSAWithSHA256, nil, nil); err == nil {
   616  		t.Fatal("CheckSignature unexpectedly return no error")
   617  	}
   618  
   619  	const expectedSubstring = " but have public key of type "
   620  	if !strings.Contains(err.Error(), expectedSubstring) {
   621  		t.Errorf("Expected error containing %q, but got %q", expectedSubstring, err)
   622  	}
   623  }
   624  
   625  var certBytes = "MIIE0jCCA7qgAwIBAgIQWcvS+TTB3GwCAAAAAGEAWzANBgkqhkiG9w0BAQsFADBCMQswCQYD" +
   626  	"VQQGEwJVUzEeMBwGA1UEChMVR29vZ2xlIFRydXN0IFNlcnZpY2VzMRMwEQYDVQQDEwpHVFMg" +
   627  	"Q0EgMU8xMB4XDTIwMDQwMTEyNTg1NloXDTIwMDYyNDEyNTg1NlowaTELMAkGA1UEBhMCVVMx" +
   628  	"EzARBgNVBAgTCkNhbGlmb3JuaWExFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxEzARBgNVBAoT" +
   629  	"Ckdvb2dsZSBMTEMxGDAWBgNVBAMTD21haWwuZ29vZ2xlLmNvbTBZMBMGByqGSM49AgEGCCqG" +
   630  	"SM49AwEHA0IABO+dYiPnkFl+cZVf6mrWeNp0RhQcJSBGH+sEJxjvc+cYlW3QJCnm57qlpFdd" +
   631  	"pz3MPyVejvXQdM6iI1mEWP4C2OujggJmMIICYjAOBgNVHQ8BAf8EBAMCB4AwEwYDVR0lBAww" +
   632  	"CgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUI6pZhnQ/lQgmPDwSKR2A54G7" +
   633  	"AS4wHwYDVR0jBBgwFoAUmNH4bhDrz5vsYJ8YkBug630J/SswZAYIKwYBBQUHAQEEWDBWMCcG" +
   634  	"CCsGAQUFBzABhhtodHRwOi8vb2NzcC5wa2kuZ29vZy9ndHMxbzEwKwYIKwYBBQUHMAKGH2h0" +
   635  	"dHA6Ly9wa2kuZ29vZy9nc3IyL0dUUzFPMS5jcnQwLAYDVR0RBCUwI4IPbWFpbC5nb29nbGUu" +
   636  	"Y29tghBpbmJveC5nb29nbGUuY29tMCEGA1UdIAQaMBgwCAYGZ4EMAQICMAwGCisGAQQB1nkC" +
   637  	"BQMwLwYDVR0fBCgwJjAkoCKgIIYeaHR0cDovL2NybC5wa2kuZ29vZy9HVFMxTzEuY3JsMIIB" +
   638  	"AwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+L" +
   639  	"kF4AAAFxNgmxKgAABAMARzBFAiEA12/OHdTGXQ3qHHC3NvYCyB8aEz/+ZFOLCAI7lhqj28sC" +
   640  	"IG2/7Yz2zK6S6ai+dH7cTMZmoFGo39gtaTqtZAqEQX7nAHUAXqdz+d9WwOe1Nkh90EngMnqR" +
   641  	"mgyEoRIShBh1loFxRVgAAAFxNgmxTAAABAMARjBEAiA7PNq+MFfv6O9mBkxFViS2TfU66yRB" +
   642  	"/njcebWglLQjZQIgOyRKhxlEizncFRml7yn4Bg48ktXKGjo+uiw6zXEINb0wDQYJKoZIhvcN" +
   643  	"AQELBQADggEBADM2Rh306Q10PScsolYMxH1B/K4Nb2WICvpY0yDPJFdnGjqCYym196TjiEvs" +
   644  	"R6etfeHdyzlZj6nh82B4TVyHjiWM02dQgPalOuWQcuSy0OvLh7F1E7CeHzKlczdFPBTOTdM1" +
   645  	"RDTxlvw1bAqc0zueM8QIAyEy3opd7FxAcGQd5WRIJhzLBL+dbbMOW/LTeW7cm/Xzq8cgCybN" +
   646  	"BSZAvhjseJ1L29OlCTZL97IfnX0IlFQzWuvvHy7V2B0E3DHlzM0kjwkkCKDUUp/wajv2NZKC" +
   647  	"TkhEyERacZRKc9U0ADxwsAzHrdz5+5zfD2usEV/MQ5V6d8swLXs+ko0X6swrd4YCiB8wggRK" +
   648  	"MIIDMqADAgECAg0B47SaoY2KqYElaVC4MA0GCSqGSIb3DQEBCwUAMEwxIDAeBgNVBAsTF0ds" +
   649  	"b2JhbFNpZ24gUm9vdCBDQSAtIFIyMRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpH" +
   650  	"bG9iYWxTaWduMB4XDTE3MDYxNTAwMDA0MloXDTIxMTIxNTAwMDA0MlowQjELMAkGA1UEBhMC" +
   651  	"VVMxHjAcBgNVBAoTFUdvb2dsZSBUcnVzdCBTZXJ2aWNlczETMBEGA1UEAxMKR1RTIENBIDFP" +
   652  	"MTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANAYz0XUi83TnORA73603WkhG8nP" +
   653  	"PI5MdbkPMRmEPZ48Ke9QDRCTbwWAgJ8qoL0SSwLhPZ9YFiT+MJ8LdHdVkx1L903hkoIQ9lGs" +
   654  	"DMOyIpQPNGuYEEnnC52DOd0gxhwt79EYYWXnI4MgqCMS/9Ikf9Qv50RqW03XUGawr55CYwX7" +
   655  	"4BzEY2Gvn2oz/2KXvUjZ03wUZ9x13C5p6PhteGnQtxAFuPExwjsk/RozdPgj4OxrGYoWxuPN" +
   656  	"pM0L27OkWWA4iDutHbnGjKdTG/y82aSrvN08YdeTFZjugb2P4mRHIEAGTtesl+i5wFkSoUkl" +
   657  	"I+TtcDQspbRjfPmjPYPRzW0krAcCAwEAAaOCATMwggEvMA4GA1UdDwEB/wQEAwIBhjAdBgNV" +
   658  	"HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwEgYDVR0TAQH/BAgwBgEB/wIBADAdBgNVHQ4E" +
   659  	"FgQUmNH4bhDrz5vsYJ8YkBug630J/SswHwYDVR0jBBgwFoAUm+IHV2ccHsBqBt5ZtJot39wZ" +
   660  	"hi4wNQYIKwYBBQUHAQEEKTAnMCUGCCsGAQUFBzABhhlodHRwOi8vb2NzcC5wa2kuZ29vZy9n" +
   661  	"c3IyMDIGA1UdHwQrMCkwJ6AloCOGIWh0dHA6Ly9jcmwucGtpLmdvb2cvZ3NyMi9nc3IyLmNy" +
   662  	"bDA/BgNVHSAEODA2MDQGBmeBDAECAjAqMCgGCCsGAQUFBwIBFhxodHRwczovL3BraS5nb29n" +
   663  	"L3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQAagD42efvzLqlGN31eVBY1rsdOCJn+" +
   664  	"vdE0aSZSZgc9CrpJy2L08RqO/BFPaJZMdCvTZ96yo6oFjYRNTCBlD6WW2g0W+Gw7228EI4hr" +
   665  	"OmzBYL1on3GO7i1YNAfw1VTphln9e14NIZT1jMmo+NjyrcwPGvOap6kEJ/mjybD/AnhrYbrH" +
   666  	"NSvoVvpPwxwM7bY8tEvq7czhPOzcDYzWPpvKQliLzBYhF0C8otZm79rEFVvNiaqbCSbnMtIN" +
   667  	"bmcgAlsQsJAJnAwfnq3YO+qh/GzoEFwIUhlRKnG7rHq13RXtK8kIKiyKtKYhq2P/11JJUNCJ" +
   668  	"t63yr/tQri/hlQ3zRq2dnPXK"
   669  
   670  func parseCIDR(s string) *net.IPNet {
   671  	_, net, err := net.ParseCIDR(s)
   672  	if err != nil {
   673  		panic(err)
   674  	}
   675  	return net
   676  }
   677  
   678  func parseURI(s string) *url.URL {
   679  	uri, err := url.Parse(s)
   680  	if err != nil {
   681  		panic(err)
   682  	}
   683  	return uri
   684  }
   685  
   686  func TestCreateSelfSignedCertificate(t *testing.T) {
   687  	random := rand.Reader
   688  
   689  	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
   690  	if err != nil {
   691  		t.Fatalf("Failed to generate ECDSA key: %s", err)
   692  	}
   693  
   694  	ed25519Pub, ed25519Priv, err := ed25519.GenerateKey(random)
   695  	if err != nil {
   696  		t.Fatalf("Failed to generate Ed25519 key: %s", err)
   697  	}
   698  
   699  	type test struct {
   700  		name      string
   701  		pub, priv any
   702  		checkSig  bool
   703  		sigAlgo   SignatureAlgorithm
   704  	}
   705  	tests := []test{
   706  		{"RSA/RSA", &testPrivateKey.PublicKey, testPrivateKey, true, SHA384WithRSA},
   707  		{"RSA/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384},
   708  		{"ECDSA/RSA", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSA},
   709  		{"ECDSA/ECDSA", &ecdsaPriv.PublicKey, ecdsaPriv, true, ECDSAWithSHA256},
   710  		{"RSAPSS/RSAPSS", &testPrivateKey.PublicKey, testPrivateKey, true, SHA256WithRSAPSS},
   711  		{"ECDSA/RSAPSS", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSAPSS},
   712  		{"RSAPSS/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384},
   713  		{"Ed25519", ed25519Pub, ed25519Priv, true, PureEd25519},
   714  	}
   715  
   716  	if fips140.Version() != "v1.0.0" {
   717  		mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44())
   718  		if err != nil {
   719  			t.Fatalf("Failed to generate ML-DSA-44 key: %s", err)
   720  		}
   721  		tests = append(tests, test{"ML-DSA-44", mldsaPriv.PublicKey(), mldsaPriv, true, MLDSA44})
   722  	}
   723  
   724  	testExtKeyUsage := []ExtKeyUsage{ExtKeyUsageClientAuth, ExtKeyUsageServerAuth}
   725  	testUnknownExtKeyUsage := []asn1.ObjectIdentifier{[]int{1, 2, 3}, []int{2, 59, 1}}
   726  	extraExtensionData := []byte("extra extension")
   727  
   728  	for _, test := range tests {
   729  		commonName := "test.example.com"
   730  		template := Certificate{
   731  			SerialNumber: big.NewInt(1),
   732  			Subject: pkix.Name{
   733  				CommonName:   commonName,
   734  				Organization: []string{"Σ Acme Co"},
   735  				Country:      []string{"US"},
   736  				ExtraNames: []pkix.AttributeTypeAndValue{
   737  					{
   738  						Type:  []int{2, 5, 4, 42},
   739  						Value: "Gopher",
   740  					},
   741  					// This should override the Country, above.
   742  					{
   743  						Type:  []int{2, 5, 4, 6},
   744  						Value: "NL",
   745  					},
   746  				},
   747  			},
   748  			NotBefore: time.Unix(1000, 0),
   749  			NotAfter:  time.Unix(100000, 0),
   750  
   751  			SignatureAlgorithm: test.sigAlgo,
   752  
   753  			SubjectKeyId: []byte{1, 2, 3, 4},
   754  			KeyUsage:     KeyUsageCertSign,
   755  
   756  			ExtKeyUsage:        testExtKeyUsage,
   757  			UnknownExtKeyUsage: testUnknownExtKeyUsage,
   758  
   759  			BasicConstraintsValid: true,
   760  			IsCA:                  true,
   761  
   762  			OCSPServer:            []string{"http://ocsp.example.com"},
   763  			IssuingCertificateURL: []string{"http://crt.example.com/ca1.crt"},
   764  
   765  			DNSNames:       []string{"test.example.com"},
   766  			EmailAddresses: []string{"gopher@golang.org"},
   767  			IPAddresses:    []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")},
   768  			URIs:           []*url.URL{parseURI("https://foo.com/wibble#foo")},
   769  
   770  			Policies:                []OID{mustNewOIDFromInts([]uint64{1, 2, 3, math.MaxUint32, math.MaxUint64})},
   771  			PermittedDNSDomains:     []string{".example.com", "example.com"},
   772  			ExcludedDNSDomains:      []string{"bar.example.com"},
   773  			PermittedIPRanges:       []*net.IPNet{parseCIDR("192.168.1.1/16"), parseCIDR("1.2.3.4/8")},
   774  			ExcludedIPRanges:        []*net.IPNet{parseCIDR("2001:db8::/48")},
   775  			PermittedEmailAddresses: []string{"foo@example.com"},
   776  			ExcludedEmailAddresses:  []string{".example.com", "example.com"},
   777  			PermittedURIDomains:     []string{".bar.com", "bar.com"},
   778  			ExcludedURIDomains:      []string{".bar2.com", "bar2.com"},
   779  
   780  			CRLDistributionPoints: []string{"http://crl1.example.com/ca1.crl", "http://crl2.example.com/ca1.crl"},
   781  
   782  			ExtraExtensions: []pkix.Extension{
   783  				{
   784  					Id:    []int{1, 2, 3, 4},
   785  					Value: extraExtensionData,
   786  				},
   787  				// This extension should override the SubjectKeyId, above.
   788  				{
   789  					Id:       oidExtensionSubjectKeyId,
   790  					Critical: false,
   791  					Value:    []byte{0x04, 0x04, 4, 3, 2, 1},
   792  				},
   793  			},
   794  		}
   795  
   796  		derBytes, err := CreateCertificate(random, &template, &template, test.pub, test.priv)
   797  		if err != nil {
   798  			t.Errorf("%s: failed to create certificate: %s", test.name, err)
   799  			continue
   800  		}
   801  
   802  		cert, err := ParseCertificate(derBytes)
   803  		if err != nil {
   804  			t.Errorf("%s: failed to parse certificate: %s", test.name, err)
   805  			continue
   806  		}
   807  
   808  		if len(cert.Policies) != 1 || !cert.Policies[0].Equal(template.Policies[0]) {
   809  			t.Errorf("%s: failed to parse policy identifiers: got:%#v want:%#v", test.name, cert.PolicyIdentifiers, template.Policies)
   810  		}
   811  
   812  		if len(cert.PermittedDNSDomains) != 2 || cert.PermittedDNSDomains[0] != ".example.com" || cert.PermittedDNSDomains[1] != "example.com" {
   813  			t.Errorf("%s: failed to parse name constraints: %#v", test.name, cert.PermittedDNSDomains)
   814  		}
   815  
   816  		if len(cert.ExcludedDNSDomains) != 1 || cert.ExcludedDNSDomains[0] != "bar.example.com" {
   817  			t.Errorf("%s: failed to parse name constraint exclusions: %#v", test.name, cert.ExcludedDNSDomains)
   818  		}
   819  
   820  		if len(cert.PermittedIPRanges) != 2 || cert.PermittedIPRanges[0].String() != "192.168.0.0/16" || cert.PermittedIPRanges[1].String() != "1.0.0.0/8" {
   821  			t.Errorf("%s: failed to parse IP constraints: %#v", test.name, cert.PermittedIPRanges)
   822  		}
   823  
   824  		if len(cert.ExcludedIPRanges) != 1 || cert.ExcludedIPRanges[0].String() != "2001:db8::/48" {
   825  			t.Errorf("%s: failed to parse IP constraint exclusions: %#v", test.name, cert.ExcludedIPRanges)
   826  		}
   827  
   828  		if len(cert.PermittedEmailAddresses) != 1 || cert.PermittedEmailAddresses[0] != "foo@example.com" {
   829  			t.Errorf("%s: failed to parse permitted email addresses: %#v", test.name, cert.PermittedEmailAddresses)
   830  		}
   831  
   832  		if len(cert.ExcludedEmailAddresses) != 2 || cert.ExcludedEmailAddresses[0] != ".example.com" || cert.ExcludedEmailAddresses[1] != "example.com" {
   833  			t.Errorf("%s: failed to parse excluded email addresses: %#v", test.name, cert.ExcludedEmailAddresses)
   834  		}
   835  
   836  		if len(cert.PermittedURIDomains) != 2 || cert.PermittedURIDomains[0] != ".bar.com" || cert.PermittedURIDomains[1] != "bar.com" {
   837  			t.Errorf("%s: failed to parse permitted URIs: %#v", test.name, cert.PermittedURIDomains)
   838  		}
   839  
   840  		if len(cert.ExcludedURIDomains) != 2 || cert.ExcludedURIDomains[0] != ".bar2.com" || cert.ExcludedURIDomains[1] != "bar2.com" {
   841  			t.Errorf("%s: failed to parse excluded URIs: %#v", test.name, cert.ExcludedURIDomains)
   842  		}
   843  
   844  		if cert.Subject.CommonName != commonName {
   845  			t.Errorf("%s: subject wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Subject.CommonName, commonName)
   846  		}
   847  
   848  		if len(cert.Subject.Country) != 1 || cert.Subject.Country[0] != "NL" {
   849  			t.Errorf("%s: ExtraNames didn't override Country", test.name)
   850  		}
   851  
   852  		for _, ext := range cert.Extensions {
   853  			if ext.Id.Equal(oidExtensionSubjectAltName) {
   854  				if ext.Critical {
   855  					t.Fatal("SAN extension is marked critical")
   856  				}
   857  			}
   858  		}
   859  
   860  		found := false
   861  		for _, atv := range cert.Subject.Names {
   862  			if atv.Type.Equal([]int{2, 5, 4, 42}) {
   863  				found = true
   864  				break
   865  			}
   866  		}
   867  		if !found {
   868  			t.Errorf("%s: Names didn't contain oid 2.5.4.42 from ExtraNames", test.name)
   869  		}
   870  
   871  		if cert.Issuer.CommonName != commonName {
   872  			t.Errorf("%s: issuer wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Issuer.CommonName, commonName)
   873  		}
   874  
   875  		if cert.SignatureAlgorithm != test.sigAlgo {
   876  			t.Errorf("%s: SignatureAlgorithm wasn't copied from template. Got %v, want %v", test.name, cert.SignatureAlgorithm, test.sigAlgo)
   877  		}
   878  
   879  		if !slices.Equal(cert.ExtKeyUsage, testExtKeyUsage) {
   880  			t.Errorf("%s: extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.ExtKeyUsage, testExtKeyUsage)
   881  		}
   882  
   883  		if !slices.EqualFunc(cert.UnknownExtKeyUsage, testUnknownExtKeyUsage, asn1.ObjectIdentifier.Equal) {
   884  			t.Errorf("%s: unknown extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.UnknownExtKeyUsage, testUnknownExtKeyUsage)
   885  		}
   886  
   887  		if !slices.Equal(cert.OCSPServer, template.OCSPServer) {
   888  			t.Errorf("%s: OCSP servers differ from template. Got %v, want %v", test.name, cert.OCSPServer, template.OCSPServer)
   889  		}
   890  
   891  		if !slices.Equal(cert.IssuingCertificateURL, template.IssuingCertificateURL) {
   892  			t.Errorf("%s: Issuing certificate URLs differ from template. Got %v, want %v", test.name, cert.IssuingCertificateURL, template.IssuingCertificateURL)
   893  		}
   894  
   895  		if !slices.Equal(cert.DNSNames, template.DNSNames) {
   896  			t.Errorf("%s: SAN DNS names differ from template. Got %v, want %v", test.name, cert.DNSNames, template.DNSNames)
   897  		}
   898  
   899  		if !slices.Equal(cert.EmailAddresses, template.EmailAddresses) {
   900  			t.Errorf("%s: SAN emails differ from template. Got %v, want %v", test.name, cert.EmailAddresses, template.EmailAddresses)
   901  		}
   902  
   903  		if len(cert.URIs) != 1 || cert.URIs[0].String() != "https://foo.com/wibble#foo" {
   904  			t.Errorf("%s: URIs differ from template. Got %v, want %v", test.name, cert.URIs, template.URIs)
   905  		}
   906  
   907  		if !slices.EqualFunc(cert.IPAddresses, template.IPAddresses, net.IP.Equal) {
   908  			t.Errorf("%s: SAN IPs differ from template. Got %v, want %v", test.name, cert.IPAddresses, template.IPAddresses)
   909  		}
   910  
   911  		if !slices.Equal(cert.CRLDistributionPoints, template.CRLDistributionPoints) {
   912  			t.Errorf("%s: CRL distribution points differ from template. Got %v, want %v", test.name, cert.CRLDistributionPoints, template.CRLDistributionPoints)
   913  		}
   914  
   915  		if !bytes.Equal(cert.SubjectKeyId, []byte{4, 3, 2, 1}) {
   916  			t.Errorf("%s: ExtraExtensions didn't override SubjectKeyId", test.name)
   917  		}
   918  
   919  		if !bytes.Contains(derBytes, extraExtensionData) {
   920  			t.Errorf("%s: didn't find extra extension in DER output", test.name)
   921  		}
   922  
   923  		if test.checkSig {
   924  			err = cert.CheckSignatureFrom(cert)
   925  			if err != nil {
   926  				t.Errorf("%s: signature verification failed: %s", test.name, err)
   927  			}
   928  		}
   929  	}
   930  }
   931  
   932  // Self-signed certificate using ECDSA with SHA1 & secp256r1
   933  var ecdsaSHA1CertPem = `
   934  -----BEGIN CERTIFICATE-----
   935  MIICDjCCAbUCCQDF6SfN0nsnrjAJBgcqhkjOPQQBMIGPMQswCQYDVQQGEwJVUzET
   936  MBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEVMBMG
   937  A1UECgwMR29vZ2xlLCBJbmMuMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG
   938  CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIwMjAyMDUw
   939  WhcNMjIwNTE4MjAyMDUwWjCBjzELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm
   940  b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFTATBgNVBAoMDEdvb2dsZSwg
   941  SW5jLjEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20xIzAhBgkqhkiG9w0BCQEWFGdv
   942  bGFuZy1kZXZAZ21haWwuY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE/Wgn
   943  WQDo5+bz71T0327ERgd5SDDXFbXLpzIZDXTkjpe8QTEbsF+ezsQfrekrpDPC4Cd3
   944  P9LY0tG+aI8IyVKdUjAJBgcqhkjOPQQBA0gAMEUCIGlsqMcRqWVIWTD6wXwe6Jk2
   945  DKxL46r/FLgJYnzBEH99AiEA3fBouObsvV1R3oVkb4BQYnD4/4LeId6lAT43YvyV
   946  a/A=
   947  -----END CERTIFICATE-----
   948  `
   949  
   950  // Self-signed certificate using ECDSA with SHA256 & secp256r1
   951  var ecdsaSHA256p256CertPem = `
   952  -----BEGIN CERTIFICATE-----
   953  MIICDzCCAbYCCQDlsuMWvgQzhTAKBggqhkjOPQQDAjCBjzELMAkGA1UEBhMCVVMx
   954  EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFTAT
   955  BgNVBAoMDEdvb2dsZSwgSW5jLjEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20xIzAh
   956  BgkqhkiG9w0BCQEWFGdvbGFuZy1kZXZAZ21haWwuY29tMB4XDTEyMDUyMTAwMTkx
   957  NloXDTIyMDUxOTAwMTkxNlowgY8xCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxp
   958  Zm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRUwEwYDVQQKDAxHb29nbGUs
   959  IEluYy4xFzAVBgNVBAMMDnd3dy5nb29nbGUuY29tMSMwIQYJKoZIhvcNAQkBFhRn
   960  b2xhbmctZGV2QGdtYWlsLmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABPMt
   961  2ErhxAty5EJRu9yM+MTy+hUXm3pdW1ensAv382KoGExSXAFWP7pjJnNtHO+XSwVm
   962  YNtqjcAGFKpweoN//kQwCgYIKoZIzj0EAwIDRwAwRAIgIYSaUA/IB81gjbIw/hUV
   963  70twxJr5EcgOo0hLp3Jm+EYCIFDO3NNcgmURbJ1kfoS3N/0O+irUtoPw38YoNkqJ
   964  h5wi
   965  -----END CERTIFICATE-----
   966  `
   967  
   968  // Self-signed certificate using ECDSA with SHA256 & secp384r1
   969  var ecdsaSHA256p384CertPem = `
   970  -----BEGIN CERTIFICATE-----
   971  MIICSjCCAdECCQDje/no7mXkVzAKBggqhkjOPQQDAjCBjjELMAkGA1UEBhMCVVMx
   972  EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDAS
   973  BgNVBAoMC0dvb2dsZSwgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG
   974  CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIxMDYxMDM0
   975  WhcNMjIwNTE5MDYxMDM0WjCBjjELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm
   976  b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDASBgNVBAoMC0dvb2dsZSwg
   977  SW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEGCSqGSIb3DQEJARYUZ29s
   978  YW5nLWRldkBnbWFpbC5jb20wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAARRuzRNIKRK
   979  jIktEmXanNmrTR/q/FaHXLhWRZ6nHWe26Fw7Rsrbk+VjGy4vfWtNn7xSFKrOu5ze
   980  qxKnmE0h5E480MNgrUiRkaGO2GMJJVmxx20aqkXOk59U8yGA4CghE6MwCgYIKoZI
   981  zj0EAwIDZwAwZAIwBZEN8gvmRmfeP/9C1PRLzODIY4JqWub2PLRT4mv9GU+yw3Gr
   982  PU9A3CHMdEcdw/MEAjBBO1lId8KOCh9UZunsSMfqXiVurpzmhWd6VYZ/32G+M+Mh
   983  3yILeYQzllt/g0rKVRk=
   984  -----END CERTIFICATE-----
   985  `
   986  
   987  // Self-signed certificate using ECDSA with SHA384 & secp521r1
   988  var ecdsaSHA384p521CertPem = `
   989  -----BEGIN CERTIFICATE-----
   990  MIICljCCAfcCCQDhp1AFD/ahKjAKBggqhkjOPQQDAzCBjjELMAkGA1UEBhMCVVMx
   991  EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDAS
   992  BgNVBAoMC0dvb2dsZSwgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG
   993  CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIxMTUwNDI5
   994  WhcNMjIwNTE5MTUwNDI5WjCBjjELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm
   995  b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDASBgNVBAoMC0dvb2dsZSwg
   996  SW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEGCSqGSIb3DQEJARYUZ29s
   997  YW5nLWRldkBnbWFpbC5jb20wgZswEAYHKoZIzj0CAQYFK4EEACMDgYYABACqx9Rv
   998  IssRs1LWYcNN+WffwlHw4Tv3y8/LIAA9MF1ZScIonU9nRMxt4a2uGJVCPDw6JHpz
   999  PaYc0E9puLoE9AfKpwFr59Jkot7dBg55SKPEFkddoip/rvmN7NPAWjMBirOwjOkm
  1000  8FPthvPhGPqsu9AvgVuHu3PosWiHGNrhh379pva8MzAKBggqhkjOPQQDAwOBjAAw
  1001  gYgCQgEHNmswkUdPpHqrVxp9PvLVl+xxPuHBkT+75z9JizyxtqykHQo9Uh6SWCYH
  1002  BF9KLolo01wMt8DjoYP5Fb3j5MH7xwJCAbWZzTOp4l4DPkIvAh4LeC4VWbwPPyqh
  1003  kBg71w/iEcSY3wUKgHGcJJrObZw7wys91I5kENljqw/Samdr3ka+jBJa
  1004  -----END CERTIFICATE-----
  1005  `
  1006  
  1007  var ecdsaTests = []struct {
  1008  	sigAlgo SignatureAlgorithm
  1009  	pemCert string
  1010  }{
  1011  	{ECDSAWithSHA256, ecdsaSHA256p256CertPem},
  1012  	{ECDSAWithSHA256, ecdsaSHA256p384CertPem},
  1013  	{ECDSAWithSHA384, ecdsaSHA384p521CertPem},
  1014  }
  1015  
  1016  func TestECDSA(t *testing.T) {
  1017  	for i, test := range ecdsaTests {
  1018  		pemBlock, _ := pem.Decode([]byte(test.pemCert))
  1019  		cert, err := ParseCertificate(pemBlock.Bytes)
  1020  		if err != nil {
  1021  			t.Errorf("%d: failed to parse certificate: %s", i, err)
  1022  			continue
  1023  		}
  1024  		if sa := cert.SignatureAlgorithm; sa != test.sigAlgo {
  1025  			t.Errorf("%d: signature algorithm is %v, want %v", i, sa, test.sigAlgo)
  1026  		}
  1027  		if parsedKey, ok := cert.PublicKey.(*ecdsa.PublicKey); !ok {
  1028  			t.Errorf("%d: wanted an ECDSA public key but found: %#v", i, parsedKey)
  1029  		}
  1030  		if pka := cert.PublicKeyAlgorithm; pka != ECDSA {
  1031  			t.Errorf("%d: public key algorithm is %v, want ECDSA", i, pka)
  1032  		}
  1033  		if err = cert.CheckSignatureFrom(cert); err != nil {
  1034  			t.Errorf("%d: certificate verification failed: %s", i, err)
  1035  		}
  1036  	}
  1037  }
  1038  
  1039  // Self-signed certificate using DSA with SHA1
  1040  var dsaCertPem = `-----BEGIN CERTIFICATE-----
  1041  MIIEDTCCA82gAwIBAgIJALHPghaoxeDhMAkGByqGSM44BAMweTELMAkGA1UEBhMC
  1042  VVMxCzAJBgNVBAgTAk5DMQ8wDQYDVQQHEwZOZXd0b24xFDASBgNVBAoTC0dvb2ds
  1043  ZSwgSW5jMRIwEAYDVQQDEwlKb24gQWxsaWUxIjAgBgkqhkiG9w0BCQEWE2pvbmFs
  1044  bGllQGdvb2dsZS5jb20wHhcNMTEwNTE0MDMwMTQ1WhcNMTEwNjEzMDMwMTQ1WjB5
  1045  MQswCQYDVQQGEwJVUzELMAkGA1UECBMCTkMxDzANBgNVBAcTBk5ld3RvbjEUMBIG
  1046  A1UEChMLR29vZ2xlLCBJbmMxEjAQBgNVBAMTCUpvbiBBbGxpZTEiMCAGCSqGSIb3
  1047  DQEJARYTam9uYWxsaWVAZ29vZ2xlLmNvbTCCAbcwggEsBgcqhkjOOAQBMIIBHwKB
  1048  gQC8hLUnQ7FpFYu4WXTj6DKvXvz8QrJkNJCVMTpKAT7uBpobk32S5RrPKXocd4gN
  1049  8lyGB9ggS03EVlEwXvSmO0DH2MQtke2jl9j1HLydClMf4sbx5V6TV9IFw505U1iW
  1050  jL7awRMgxge+FsudtJK254FjMFo03ZnOQ8ZJJ9E6AEDrlwIVAJpnBn9moyP11Ox5
  1051  Asc/5dnjb6dPAoGBAJFHd4KVv1iTVCvEG6gGiYop5DJh28hUQcN9kul+2A0yPUSC
  1052  X93oN00P8Vh3eYgSaCWZsha7zDG53MrVJ0Zf6v/X/CoZNhLldeNOepivTRAzn+Rz
  1053  kKUYy5l1sxYLHQKF0UGNCXfFKZT0PCmgU+PWhYNBBMn6/cIh44vp85ideo5CA4GE
  1054  AAKBgFmifCafzeRaohYKXJgMGSEaggCVCRq5xdyDCat+wbOkjC4mfG01/um3G8u5
  1055  LxasjlWRKTR/tcAL7t0QuokVyQaYdVypZXNaMtx1db7YBuHjj3aP+8JOQRI9xz8c
  1056  bp5NDJ5pISiFOv4p3GZfqZPcqckDt78AtkQrmnal2txhhjF6o4HeMIHbMB0GA1Ud
  1057  DgQWBBQVyyr7hO11ZFFpWX50298Sa3V+rzCBqwYDVR0jBIGjMIGggBQVyyr7hO11
  1058  ZFFpWX50298Sa3V+r6F9pHsweTELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAk5DMQ8w
  1059  DQYDVQQHEwZOZXd0b24xFDASBgNVBAoTC0dvb2dsZSwgSW5jMRIwEAYDVQQDEwlK
  1060  b24gQWxsaWUxIjAgBgkqhkiG9w0BCQEWE2pvbmFsbGllQGdvb2dsZS5jb22CCQCx
  1061  z4IWqMXg4TAMBgNVHRMEBTADAQH/MAkGByqGSM44BAMDLwAwLAIUPtn/5j8Q1jJI
  1062  7ggOIsgrhgUdjGQCFCsmDq1H11q9+9Wp9IMeGrTSKHIM
  1063  -----END CERTIFICATE-----
  1064  `
  1065  
  1066  func TestParseCertificateWithDsaPublicKey(t *testing.T) {
  1067  	expectedKey := &dsa.PublicKey{
  1068  		Parameters: dsa.Parameters{
  1069  			P: bigFromHexString("00BC84B52743B169158BB85974E3E832AF5EFCFC42B264349095313A4A013EEE069A1B937D92E51ACF297A1C77880DF25C8607D8204B4DC45651305EF4A63B40C7D8C42D91EDA397D8F51CBC9D0A531FE2C6F1E55E9357D205C39D395358968CBEDAC11320C607BE16CB9DB492B6E78163305A34DD99CE43C64927D13A0040EB97"),
  1070  			Q: bigFromHexString("009A67067F66A323F5D4EC7902C73FE5D9E36FA74F"),
  1071  			G: bigFromHexString("009147778295BF5893542BC41BA806898A29E43261DBC85441C37D92E97ED80D323D44825FDDE8374D0FF15877798812682599B216BBCC31B9DCCAD527465FEAFFD7FC2A193612E575E34E7A98AF4D10339FE47390A518CB9975B3160B1D0285D1418D0977C52994F43C29A053E3D685834104C9FAFDC221E38BE9F3989D7A8E42"),
  1072  		},
  1073  		Y: bigFromHexString("59A27C269FCDE45AA2160A5C980C19211A820095091AB9C5DC8309AB7EC1B3A48C2E267C6D35FEE9B71BCBB92F16AC8E559129347FB5C00BEEDD10BA8915C90698755CA965735A32DC7575BED806E1E38F768FFBC24E41123DC73F1C6E9E4D0C9E692128853AFE29DC665FA993DCA9C903B7BF00B6442B9A76A5DADC6186317A"),
  1074  	}
  1075  	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
  1076  	cert, err := ParseCertificate(pemBlock.Bytes)
  1077  	if err != nil {
  1078  		t.Fatalf("Failed to parse certificate: %s", err)
  1079  	}
  1080  	if cert.PublicKeyAlgorithm != DSA {
  1081  		t.Errorf("Parsed key algorithm was not DSA")
  1082  	}
  1083  	parsedKey, ok := cert.PublicKey.(*dsa.PublicKey)
  1084  	if !ok {
  1085  		t.Fatalf("Parsed key was not a DSA key: %s", err)
  1086  	}
  1087  	if expectedKey.Y.Cmp(parsedKey.Y) != 0 ||
  1088  		expectedKey.P.Cmp(parsedKey.P) != 0 ||
  1089  		expectedKey.Q.Cmp(parsedKey.Q) != 0 ||
  1090  		expectedKey.G.Cmp(parsedKey.G) != 0 {
  1091  		t.Fatal("Parsed key differs from expected key")
  1092  	}
  1093  }
  1094  
  1095  func TestParseCertificateWithDSASignatureAlgorithm(t *testing.T) {
  1096  	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
  1097  	cert, err := ParseCertificate(pemBlock.Bytes)
  1098  	if err != nil {
  1099  		t.Fatalf("Failed to parse certificate: %s", err)
  1100  	}
  1101  	if cert.SignatureAlgorithm != DSAWithSHA1 {
  1102  		t.Errorf("Parsed signature algorithm was not DSAWithSHA1")
  1103  	}
  1104  }
  1105  
  1106  func TestVerifyCertificateWithDSASignature(t *testing.T) {
  1107  	pemBlock, _ := pem.Decode([]byte(dsaCertPem))
  1108  	cert, err := ParseCertificate(pemBlock.Bytes)
  1109  	if err != nil {
  1110  		t.Fatalf("Failed to parse certificate: %s", err)
  1111  	}
  1112  	// test cert is self-signed
  1113  	if err = cert.CheckSignatureFrom(cert); err == nil {
  1114  		t.Fatalf("Expected error verifying DSA certificate")
  1115  	}
  1116  }
  1117  
  1118  var rsaPSSSelfSignedPEM = `-----BEGIN CERTIFICATE-----
  1119  MIIGHjCCA9KgAwIBAgIBdjBBBgkqhkiG9w0BAQowNKAPMA0GCWCGSAFlAwQCAQUA
  1120  oRwwGgYJKoZIhvcNAQEIMA0GCWCGSAFlAwQCAQUAogMCASAwbjELMAkGA1UEBhMC
  1121  SlAxHDAaBgNVBAoME0phcGFuZXNlIEdvdmVybm1lbnQxKDAmBgNVBAsMH1RoZSBN
  1122  aW5pc3RyeSBvZiBGb3JlaWduIEFmZmFpcnMxFzAVBgNVBAMMDmUtcGFzc3BvcnRD
  1123  U0NBMB4XDTEzMDUxNDA1MDczMFoXDTI5MDUxNDA1MDczMFowbjELMAkGA1UEBhMC
  1124  SlAxHDAaBgNVBAoME0phcGFuZXNlIEdvdmVybm1lbnQxKDAmBgNVBAsMH1RoZSBN
  1125  aW5pc3RyeSBvZiBGb3JlaWduIEFmZmFpcnMxFzAVBgNVBAMMDmUtcGFzc3BvcnRD
  1126  U0NBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAx/E3WRVxcCDXhoST
  1127  8nVSLjW6hwM4Ni99AegWzcGtfGFo0zjFA1Cl5URqxauvYu3gQgQHBGA1CovWeGrl
  1128  yVSRzOL1imcYsSgLOcnhVYB3Xcrof4ebv9+W+TwNdc9YzAwcj8rNd5nP6PKXIQ+W
  1129  PCkEOXdyb80YEnxuT+NPjkVfFSPBS7QYZpvT2fwy4fZ0eh48253+7VleSmTO0mqj
  1130  7TlzaG56q150SLZbhpOd8jD8bM/wACnLCPR88wj4hCcDLEwoLyY85HJCTIQQMnoT
  1131  UpqyzEeupPREIm6yi4d8C9YqIWFn2YTnRcWcmMaJLzq+kYwKoudfnoC6RW2vzZXn
  1132  defQs68IZuK+uALu9G3JWGPgu0CQGj0JNDT8zkiDV++4eNrZczWKjr1YnAL+VbLK
  1133  bApwL2u19l2WDpfUklimhWfraqHNIUKU6CjZOG31RzXcplIj0mtqs0E1r7r357Es
  1134  yFoB28iNo4cz1lCulh0E4WJzWzLZcT4ZspHHRCFyvYnXoibXEV1nULq8ByKKG0FS
  1135  7nn4SseoV+8PvjHLPhmHGMvi4mxkbcXdV3wthHT1/HXdqY84A4xHWt1+sB/TpTek
  1136  tDhFlEfcUygvTu58UtOnysomOVVeERmi7WSujfzKsGJAJYeetiA5R+zX7BxeyFVE
  1137  qW0zh1Tkwh0S8LRe5diJh4+6FG0CAwEAAaNfMF0wHQYDVR0OBBYEFD+oahaikBTV
  1138  Urk81Uz7kRS2sx0aMA4GA1UdDwEB/wQEAwIBBjAYBgNVHSAEETAPMA0GCyqDCIaP
  1139  fgYFAQEBMBIGA1UdEwEB/wQIMAYBAf8CAQAwQQYJKoZIhvcNAQEKMDSgDzANBglg
  1140  hkgBZQMEAgEFAKEcMBoGCSqGSIb3DQEBCDANBglghkgBZQMEAgEFAKIDAgEgA4IC
  1141  AQAaxWBQn5CZuNBfyzL57mn31ukHUFd61OMROSX3PT7oCv1Dy+C2AdRlxOcbN3/n
  1142  li0yfXUUqiY3COlLAHKRlkr97mLtxEFoJ0R8nVN2IQdChNQM/XSCzSGyY8NVa1OR
  1143  TTpEWLnexJ9kvIdbFXwUqdTnAkOI0m7Rg8j+E+lRRHg1xDAA1qKttrtUj3HRQWf3
  1144  kNTu628SiMvap6aIdncburaK56MP7gkR1Wr/ichOfjIA3Jgw2PapI31i0GqeMd66
  1145  U1+lC9FeyMAJpuSVp/SoiYzYo+79SFcVoM2yw3yAnIKg7q9GLYYqzncdykT6C06c
  1146  15gWFI6igmReAsD9ITSvYh0jLrLHfEYcPTOD3ZXJ4EwwHtWSoO3gq1EAtOYKu/Lv
  1147  C8zfBsZcFdsHvsSiYeBU8Oioe42mguky3Ax9O7D805Ek6R68ra07MW/G4YxvV7IN
  1148  2BfSaYy8MX9IG0ZMIOcoc0FeF5xkFmJ7kdrlTaJzC0IE9PNxNaH5QnOAFB8vxHcO
  1149  FioUxb6UKdHcPLR1VZtAdTdTMjSJxUqD/35Cdfqs7oDJXz8f6TXO2Tdy6G++YUs9
  1150  qsGZWxzFvvkXUkQSl0dQQ5jO/FtUJcAVXVVp20LxPemfatAHpW31WdJYeWSQWky2
  1151  +f9b5TXKXVyjlUL7uHxowWrT2AtTchDH22wTEtqLEF9Z3Q==
  1152  -----END CERTIFICATE-----`
  1153  
  1154  // openssl req -newkey rsa:2048 -keyout test.key -sha256 -sigopt \
  1155  // rsa_padding_mode:pss -sigopt rsa_pss_saltlen:32 -sigopt rsa_mgf1_md:sha256 \
  1156  // -x509 -days 3650 -nodes -subj '/C=US/ST=CA/L=SF/O=Test/CN=Test' -out \
  1157  // test.pem
  1158  var rsaPSSSelfSignedOpenSSL110PEM = `-----BEGIN CERTIFICATE-----
  1159  MIIDwDCCAnigAwIBAgIJAM9LAMHTE5xpMD0GCSqGSIb3DQEBCjAwoA0wCwYJYIZI
  1160  AWUDBAIBoRowGAYJKoZIhvcNAQEIMAsGCWCGSAFlAwQCAaIDAgEgMEUxCzAJBgNV
  1161  BAYTAlVTMQswCQYDVQQIDAJDQTELMAkGA1UEBwwCU0YxDTALBgNVBAoMBFRlc3Qx
  1162  DTALBgNVBAMMBFRlc3QwHhcNMTgwMjIyMjIxMzE4WhcNMjgwMjIwMjIxMzE4WjBF
  1163  MQswCQYDVQQGEwJVUzELMAkGA1UECAwCQ0ExCzAJBgNVBAcMAlNGMQ0wCwYDVQQK
  1164  DARUZXN0MQ0wCwYDVQQDDARUZXN0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
  1165  CgKCAQEA4Zrsydod+GoTAJLLutWNF87qhhVPBsK1zB1Gj+NAAe4+VbrZ1E41H1wp
  1166  qITx7DA8DRtJEf+NqrTAnAdZWBG/tAOA5LfXVax0ZSQtLnYLSeylLoMtDyY3eFAj
  1167  TmuTOoyVy6raktowCnHCh01NsstqqTfrx6SbmzOmDmKTkq/I+7K0MCVsn41xRDVM
  1168  +ShD0WGFGioEGoiWnFSWupxJDA3Q6jIDEygVwNKHwnhv/2NgG2kqZzrZSQA67en0
  1169  iKAXtoDNPpmyD5oS9YbEJ+2Nbm7oLeON30i6kZvXKIzJXx+UWViazHZqnsi5rQ8G
  1170  RHF+iVFXsqd0MzDKmkKOT5FDhrsbKQIDAQABo1MwUTAdBgNVHQ4EFgQU9uFY/nlg
  1171  gLH00NBnr/o7QvpN9ugwHwYDVR0jBBgwFoAU9uFY/nlggLH00NBnr/o7QvpN9ugw
  1172  DwYDVR0TAQH/BAUwAwEB/zA9BgkqhkiG9w0BAQowMKANMAsGCWCGSAFlAwQCAaEa
  1173  MBgGCSqGSIb3DQEBCDALBglghkgBZQMEAgGiAwIBIAOCAQEAhJzpwxBNGKvzKWDe
  1174  WLqv6RMrl/q4GcH3b7M9wjxe0yOm4F+Tb2zJ7re4h+D39YkJf8cX1NV9UQVu6z4s
  1175  Fvo2kmlR0qZOXAg5augmCQ1xS0WHFoF6B52anNzHkZQbAIYJ3kGoFsUHzs7Sz7F/
  1176  656FsRpHA9UzJQ3avPPMrA4Y4aoJ7ANJ6XIwTrdWrhULOVuvYRLCl4CdTVztVFX6
  1177  wxX8nS1ISYd8jXPUMgsBKVbWufvLoIymMJW8CZbpprVZel5zFn0bmPrON8IHS30w
  1178  Gs+ITJjKEnZgXmAQ25SLKVzkZkBcGANs2GsdHNJ370Puisy0FIPD2NXR5uASAf7J
  1179  +w9fjQ==
  1180  -----END CERTIFICATE-----`
  1181  
  1182  func TestRSAPSSSelfSigned(t *testing.T) {
  1183  	for i, pemBlock := range []string{rsaPSSSelfSignedPEM, rsaPSSSelfSignedOpenSSL110PEM} {
  1184  		der, _ := pem.Decode([]byte(pemBlock))
  1185  		if der == nil {
  1186  			t.Errorf("#%d: failed to find PEM block", i)
  1187  			continue
  1188  		}
  1189  
  1190  		cert, err := ParseCertificate(der.Bytes)
  1191  		if err != nil {
  1192  			t.Errorf("#%d: failed to parse: %s", i, err)
  1193  			continue
  1194  		}
  1195  
  1196  		if err = cert.CheckSignatureFrom(cert); err != nil {
  1197  			t.Errorf("#%d: signature check failed: %s", i, err)
  1198  			continue
  1199  		}
  1200  	}
  1201  }
  1202  
  1203  const ed25519Certificate = `
  1204  Certificate:
  1205      Data:
  1206          Version: 3 (0x2)
  1207          Serial Number:
  1208              0c:83:d8:21:2b:82:cb:23:98:23:63:e2:f7:97:8a:43:5b:f3:bd:92
  1209          Signature Algorithm: ED25519
  1210          Issuer: CN = Ed25519 test certificate
  1211          Validity
  1212              Not Before: May  6 17:27:16 2019 GMT
  1213              Not After : Jun  5 17:27:16 2019 GMT
  1214          Subject: CN = Ed25519 test certificate
  1215          Subject Public Key Info:
  1216              Public Key Algorithm: ED25519
  1217                  ED25519 Public-Key:
  1218                  pub:
  1219                      36:29:c5:6c:0d:4f:14:6c:81:d0:ff:75:d3:6a:70:
  1220                      5f:69:cd:0f:4d:66:d5:da:98:7e:82:49:89:a3:8a:
  1221                      3c:fa
  1222          X509v3 extensions:
  1223              X509v3 Subject Key Identifier:
  1224                  09:3B:3A:9D:4A:29:D8:95:FF:68:BE:7B:43:54:72:E0:AD:A2:E3:AE
  1225              X509v3 Authority Key Identifier:
  1226                  keyid:09:3B:3A:9D:4A:29:D8:95:FF:68:BE:7B:43:54:72:E0:AD:A2:E3:AE
  1227  
  1228              X509v3 Basic Constraints: critical
  1229                  CA:TRUE
  1230      Signature Algorithm: ED25519
  1231           53:a5:58:1c:2c:3b:2a:9e:ac:9d:4e:a5:1d:5f:5d:6d:a6:b5:
  1232           08:de:12:82:f3:97:20:ae:fa:d8:98:f4:1a:83:32:6b:91:f5:
  1233           24:1d:c4:20:7f:2c:e2:4d:da:13:3b:6d:54:1a:d2:a8:28:dc:
  1234           60:b9:d4:f4:78:4b:3c:1c:91:00
  1235  -----BEGIN CERTIFICATE-----
  1236  MIIBWzCCAQ2gAwIBAgIUDIPYISuCyyOYI2Pi95eKQ1vzvZIwBQYDK2VwMCMxITAf
  1237  BgNVBAMMGEVkMjU1MTkgdGVzdCBjZXJ0aWZpY2F0ZTAeFw0xOTA1MDYxNzI3MTZa
  1238  Fw0xOTA2MDUxNzI3MTZaMCMxITAfBgNVBAMMGEVkMjU1MTkgdGVzdCBjZXJ0aWZp
  1239  Y2F0ZTAqMAUGAytlcAMhADYpxWwNTxRsgdD/ddNqcF9pzQ9NZtXamH6CSYmjijz6
  1240  o1MwUTAdBgNVHQ4EFgQUCTs6nUop2JX/aL57Q1Ry4K2i464wHwYDVR0jBBgwFoAU
  1241  CTs6nUop2JX/aL57Q1Ry4K2i464wDwYDVR0TAQH/BAUwAwEB/zAFBgMrZXADQQBT
  1242  pVgcLDsqnqydTqUdX11tprUI3hKC85cgrvrYmPQagzJrkfUkHcQgfyziTdoTO21U
  1243  GtKoKNxgudT0eEs8HJEA
  1244  -----END CERTIFICATE-----`
  1245  
  1246  func TestEd25519SelfSigned(t *testing.T) {
  1247  	der, _ := pem.Decode([]byte(ed25519Certificate))
  1248  	if der == nil {
  1249  		t.Fatalf("Failed to find PEM block")
  1250  	}
  1251  
  1252  	cert, err := ParseCertificate(der.Bytes)
  1253  	if err != nil {
  1254  		t.Fatalf("Failed to parse: %s", err)
  1255  	}
  1256  
  1257  	if cert.PublicKeyAlgorithm != Ed25519 {
  1258  		t.Fatalf("Parsed key algorithm was not Ed25519")
  1259  	}
  1260  	parsedKey, ok := cert.PublicKey.(ed25519.PublicKey)
  1261  	if !ok {
  1262  		t.Fatalf("Parsed key was not an Ed25519 key: %s", err)
  1263  	}
  1264  	if len(parsedKey) != ed25519.PublicKeySize {
  1265  		t.Fatalf("Invalid Ed25519 key")
  1266  	}
  1267  
  1268  	if err = cert.CheckSignatureFrom(cert); err != nil {
  1269  		t.Fatalf("Signature check failed: %s", err)
  1270  	}
  1271  }
  1272  
  1273  const pemCertificate = `-----BEGIN CERTIFICATE-----
  1274  MIIDATCCAemgAwIBAgIRAKQkkrFx1T/dgB/Go/xBM5swDQYJKoZIhvcNAQELBQAw
  1275  EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0xNjA4MTcyMDM2MDdaFw0xNzA4MTcyMDM2
  1276  MDdaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
  1277  ggEKAoIBAQDAoJtjG7M6InsWwIo+l3qq9u+g2rKFXNu9/mZ24XQ8XhV6PUR+5HQ4
  1278  jUFWC58ExYhottqK5zQtKGkw5NuhjowFUgWB/VlNGAUBHtJcWR/062wYrHBYRxJH
  1279  qVXOpYKbIWwFKoXu3hcpg/CkdOlDWGKoZKBCwQwUBhWE7MDhpVdQ+ZljUJWL+FlK
  1280  yQK5iRsJd5TGJ6VUzLzdT4fmN2DzeK6GLeyMpVpU3sWV90JJbxWQ4YrzkKzYhMmB
  1281  EcpXTG2wm+ujiHU/k2p8zlf8Sm7VBM/scmnMFt0ynNXop4FWvJzEm1G0xD2t+e2I
  1282  5Utr04dOZPCgkm++QJgYhtZvgW7ZZiGTAgMBAAGjUjBQMA4GA1UdDwEB/wQEAwIF
  1283  oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBsGA1UdEQQUMBKC
  1284  EHRlc3QuZXhhbXBsZS5jb20wDQYJKoZIhvcNAQELBQADggEBADpqKQxrthH5InC7
  1285  X96UP0OJCu/lLEMkrjoEWYIQaFl7uLPxKH5AmQPH4lYwF7u7gksR7owVG9QU9fs6
  1286  1fK7II9CVgCd/4tZ0zm98FmU4D0lHGtPARrrzoZaqVZcAvRnFTlPX5pFkPhVjjai
  1287  /mkxX9LpD8oK1445DFHxK5UjLMmPIIWd8EOi+v5a+hgGwnJpoW7hntSl8kHMtTmy
  1288  fnnktsblSUV4lRCit0ymC7Ojhe+gzCCwkgs5kDzVVag+tnl/0e2DloIjASwOhpbH
  1289  KVcg7fBd484ht/sS+l0dsB4KDOSpd8JzVDMF8OZqlaydizoJO0yWr9GbCN1+OKq5
  1290  EhLrEqU=
  1291  -----END CERTIFICATE-----`
  1292  
  1293  const ed25519CRLCertificate = `
  1294  Certificate:
  1295  Data:
  1296  	Version: 3 (0x2)
  1297  	Serial Number:
  1298  		7a:07:a0:9d:14:04:16:fc:1f:d8:e5:fe:d1:1d:1f:8d
  1299  	Signature Algorithm: ED25519
  1300  	Issuer: CN = Ed25519 CRL Test CA
  1301  	Validity
  1302  		Not Before: Oct 30 01:20:20 2019 GMT
  1303  		Not After : Dec 31 23:59:59 9999 GMT
  1304  	Subject: CN = Ed25519 CRL Test CA
  1305  	Subject Public Key Info:
  1306  		Public Key Algorithm: ED25519
  1307  			ED25519 Public-Key:
  1308  			pub:
  1309  				95:73:3b:b0:06:2a:31:5a:b6:a7:a6:6e:ef:71:df:
  1310  				ac:6f:6b:39:03:85:5e:63:4b:f8:a6:0f:68:c6:6f:
  1311  				75:21
  1312  	X509v3 extensions:
  1313  		X509v3 Key Usage: critical
  1314  			Digital Signature, Certificate Sign, CRL Sign
  1315  		X509v3 Extended Key Usage:
  1316  			TLS Web Client Authentication, TLS Web Server Authentication, OCSP Signing
  1317  		X509v3 Basic Constraints: critical
  1318  			CA:TRUE
  1319  		X509v3 Subject Key Identifier:
  1320  			B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60
  1321  		X509v3 Authority Key Identifier:
  1322  			keyid:B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60
  1323  
  1324  Signature Algorithm: ED25519
  1325  	 fc:3e:14:ea:bb:70:c2:6f:38:34:70:bc:c8:a7:f4:7c:0d:1e:
  1326  	 28:d7:2a:9f:22:8a:45:e8:02:76:84:1e:2d:64:2d:1e:09:b5:
  1327  	 29:71:1f:95:8a:4e:79:87:51:60:9a:e7:86:40:f6:60:c7:d1:
  1328  	 ee:68:76:17:1d:90:cc:92:93:07
  1329  -----BEGIN CERTIFICATE-----
  1330  MIIBijCCATygAwIBAgIQegegnRQEFvwf2OX+0R0fjTAFBgMrZXAwHjEcMBoGA1UE
  1331  AxMTRWQyNTUxOSBDUkwgVGVzdCBDQTAgFw0xOTEwMzAwMTIwMjBaGA85OTk5MTIz
  1332  MTIzNTk1OVowHjEcMBoGA1UEAxMTRWQyNTUxOSBDUkwgVGVzdCBDQTAqMAUGAytl
  1333  cAMhAJVzO7AGKjFatqembu9x36xvazkDhV5jS/imD2jGb3Uho4GNMIGKMA4GA1Ud
  1334  DwEB/wQEAwIBhjAnBgNVHSUEIDAeBggrBgEFBQcDAgYIKwYBBQUHAwEGCCsGAQUF
  1335  BwMJMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFLcX2hbqxe0fGElE09LjoDUK
  1336  gZNgMB8GA1UdIwQYMBaAFLcX2hbqxe0fGElE09LjoDUKgZNgMAUGAytlcANBAPw+
  1337  FOq7cMJvODRwvMin9HwNHijXKp8iikXoAnaEHi1kLR4JtSlxH5WKTnmHUWCa54ZA
  1338  9mDH0e5odhcdkMySkwc=
  1339  -----END CERTIFICATE-----`
  1340  
  1341  var ed25519CRLKey = testingKey(`-----BEGIN TEST KEY-----
  1342  MC4CAQAwBQYDK2VwBCIEINdKh2096vUBYu4EIFpjShsUSh3vimKya1sQ1YTT4RZG
  1343  -----END TEST KEY-----`)
  1344  
  1345  func TestCRLCreation(t *testing.T) {
  1346  	block, _ := pem.Decode([]byte(pemPrivateKey))
  1347  	privRSA, _ := ParsePKCS1PrivateKey(block.Bytes)
  1348  	block, _ = pem.Decode([]byte(pemCertificate))
  1349  	certRSA, _ := ParseCertificate(block.Bytes)
  1350  
  1351  	block, _ = pem.Decode([]byte(ed25519CRLKey))
  1352  	privEd25519, _ := ParsePKCS8PrivateKey(block.Bytes)
  1353  	block, _ = pem.Decode([]byte(ed25519CRLCertificate))
  1354  	certEd25519, _ := ParseCertificate(block.Bytes)
  1355  
  1356  	tests := []struct {
  1357  		name string
  1358  		priv any
  1359  		cert *Certificate
  1360  	}{
  1361  		{"RSA CA", privRSA, certRSA},
  1362  		{"Ed25519 CA", privEd25519, certEd25519},
  1363  	}
  1364  
  1365  	loc := time.FixedZone("Oz/Atlantis", int((2 * time.Hour).Seconds()))
  1366  
  1367  	now := time.Unix(1000, 0).In(loc)
  1368  	nowUTC := now.UTC()
  1369  	expiry := time.Unix(10000, 0)
  1370  
  1371  	revokedCerts := []pkix.RevokedCertificate{
  1372  		{
  1373  			SerialNumber:   big.NewInt(1),
  1374  			RevocationTime: nowUTC,
  1375  		},
  1376  		{
  1377  			SerialNumber: big.NewInt(42),
  1378  			// RevocationTime should be converted to UTC before marshaling.
  1379  			RevocationTime: now,
  1380  		},
  1381  	}
  1382  	expectedCerts := []pkix.RevokedCertificate{
  1383  		{
  1384  			SerialNumber:   big.NewInt(1),
  1385  			RevocationTime: nowUTC,
  1386  		},
  1387  		{
  1388  			SerialNumber:   big.NewInt(42),
  1389  			RevocationTime: nowUTC,
  1390  		},
  1391  	}
  1392  
  1393  	for _, test := range tests {
  1394  		crlBytes, err := test.cert.CreateCRL(rand.Reader, test.priv, revokedCerts, now, expiry)
  1395  		if err != nil {
  1396  			t.Errorf("%s: error creating CRL: %s", test.name, err)
  1397  			continue
  1398  		}
  1399  
  1400  		parsedCRL, err := ParseDERCRL(crlBytes)
  1401  		if err != nil {
  1402  			t.Errorf("%s: error reparsing CRL: %s", test.name, err)
  1403  			continue
  1404  		}
  1405  		if !reflect.DeepEqual(parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) {
  1406  			t.Errorf("%s: RevokedCertificates mismatch: got %v; want %v.", test.name,
  1407  				parsedCRL.TBSCertList.RevokedCertificates, expectedCerts)
  1408  		}
  1409  	}
  1410  }
  1411  
  1412  func fromBase64(in string) []byte {
  1413  	out := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
  1414  	n, err := base64.StdEncoding.Decode(out, []byte(in))
  1415  	if err != nil {
  1416  		panic("failed to base64 decode")
  1417  	}
  1418  	return out[:n]
  1419  }
  1420  
  1421  func TestParseDERCRL(t *testing.T) {
  1422  	derBytes := fromBase64(derCRLBase64)
  1423  	certList, err := ParseDERCRL(derBytes)
  1424  	if err != nil {
  1425  		t.Errorf("error parsing: %s", err)
  1426  		return
  1427  	}
  1428  	numCerts := len(certList.TBSCertList.RevokedCertificates)
  1429  	expected := 88
  1430  	if numCerts != expected {
  1431  		t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
  1432  	}
  1433  
  1434  	if certList.HasExpired(time.Unix(1302517272, 0)) {
  1435  		t.Errorf("CRL has expired (but shouldn't have)")
  1436  	}
  1437  
  1438  	// Can't check the signature here without a package cycle.
  1439  }
  1440  
  1441  func TestCRLWithoutExpiry(t *testing.T) {
  1442  	derBytes := fromBase64("MIHYMIGZMAkGByqGSM44BAMwEjEQMA4GA1UEAxMHQ2FybERTUxcNOTkwODI3MDcwMDAwWjBpMBMCAgDIFw05OTA4MjIwNzAwMDBaMBMCAgDJFw05OTA4MjIwNzAwMDBaMBMCAgDTFw05OTA4MjIwNzAwMDBaMBMCAgDSFw05OTA4MjIwNzAwMDBaMBMCAgDUFw05OTA4MjQwNzAwMDBaMAkGByqGSM44BAMDLwAwLAIUfmVSdjP+NHMX0feW+aDU2G1cfT0CFAJ6W7fVWxjBz4fvftok8yqDnDWh")
  1443  	certList, err := ParseDERCRL(derBytes)
  1444  	if err != nil {
  1445  		t.Fatal(err)
  1446  	}
  1447  	if !certList.TBSCertList.NextUpdate.IsZero() {
  1448  		t.Errorf("NextUpdate is not the zero value")
  1449  	}
  1450  }
  1451  
  1452  func TestParsePEMCRL(t *testing.T) {
  1453  	pemBytes := fromBase64(pemCRLBase64)
  1454  	certList, err := ParseCRL(pemBytes)
  1455  	if err != nil {
  1456  		t.Errorf("error parsing: %s", err)
  1457  		return
  1458  	}
  1459  	numCerts := len(certList.TBSCertList.RevokedCertificates)
  1460  	expected := 2
  1461  	if numCerts != expected {
  1462  		t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
  1463  	}
  1464  
  1465  	if certList.HasExpired(time.Unix(1302517272, 0)) {
  1466  		t.Errorf("CRL has expired (but shouldn't have)")
  1467  	}
  1468  
  1469  	// Can't check the signature here without a package cycle.
  1470  }
  1471  
  1472  func TestImports(t *testing.T) {
  1473  	if testing.Short() {
  1474  		t.Skip("skipping in -short mode")
  1475  	}
  1476  	if out, err := testenv.Command(t, testenv.GoToolPath(t), "run", "x509_test_import.go").CombinedOutput(); err != nil {
  1477  		t.Errorf("failed to run x509_test_import.go: %s\n%s", err, out)
  1478  	}
  1479  }
  1480  
  1481  const derCRLBase64 = "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"
  1482  
  1483  const pemCRLBase64 = "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"
  1484  
  1485  func TestCreateCertificateRequest(t *testing.T) {
  1486  	random := rand.Reader
  1487  
  1488  	ecdsa256Priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  1489  	if err != nil {
  1490  		t.Fatalf("Failed to generate ECDSA key: %s", err)
  1491  	}
  1492  
  1493  	ecdsa384Priv, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
  1494  	if err != nil {
  1495  		t.Fatalf("Failed to generate ECDSA key: %s", err)
  1496  	}
  1497  
  1498  	ecdsa521Priv, err := ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
  1499  	if err != nil {
  1500  		t.Fatalf("Failed to generate ECDSA key: %s", err)
  1501  	}
  1502  
  1503  	_, ed25519Priv, err := ed25519.GenerateKey(random)
  1504  	if err != nil {
  1505  		t.Fatalf("Failed to generate Ed25519 key: %s", err)
  1506  	}
  1507  
  1508  	type test struct {
  1509  		name    string
  1510  		priv    any
  1511  		sigAlgo SignatureAlgorithm
  1512  	}
  1513  	tests := []test{
  1514  		{"RSA", testPrivateKey, SHA256WithRSA},
  1515  		{"RSA-PSS-SHA256", testPrivateKey, SHA256WithRSAPSS},
  1516  		{"ECDSA-256", ecdsa256Priv, ECDSAWithSHA256},
  1517  		{"ECDSA-384", ecdsa384Priv, ECDSAWithSHA256},
  1518  		{"ECDSA-521", ecdsa521Priv, ECDSAWithSHA256},
  1519  		{"Ed25519", ed25519Priv, PureEd25519},
  1520  	}
  1521  
  1522  	if fips140.Version() != "v1.0.0" {
  1523  		mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44())
  1524  		if err != nil {
  1525  			t.Fatalf("Failed to generate ML-DSA-44 key: %s", err)
  1526  		}
  1527  		tests = append(tests, test{"ML-DSA-44", mldsaPriv, MLDSA44})
  1528  	}
  1529  
  1530  	for _, test := range tests {
  1531  		template := CertificateRequest{
  1532  			Subject: pkix.Name{
  1533  				CommonName:   "test.example.com",
  1534  				Organization: []string{"Σ Acme Co"},
  1535  			},
  1536  			SignatureAlgorithm: test.sigAlgo,
  1537  			DNSNames:           []string{"test.example.com"},
  1538  			EmailAddresses:     []string{"gopher@golang.org"},
  1539  			IPAddresses:        []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")},
  1540  		}
  1541  
  1542  		derBytes, err := CreateCertificateRequest(random, &template, test.priv)
  1543  		if err != nil {
  1544  			t.Errorf("%s: failed to create certificate request: %s", test.name, err)
  1545  			continue
  1546  		}
  1547  
  1548  		out, err := ParseCertificateRequest(derBytes)
  1549  		if err != nil {
  1550  			t.Errorf("%s: failed to create certificate request: %s", test.name, err)
  1551  			continue
  1552  		}
  1553  
  1554  		err = out.CheckSignature()
  1555  		if err != nil {
  1556  			t.Errorf("%s: failed to check certificate request signature: %s", test.name, err)
  1557  			continue
  1558  		}
  1559  
  1560  		if out.Subject.CommonName != template.Subject.CommonName {
  1561  			t.Errorf("%s: output subject common name and template subject common name don't match", test.name)
  1562  		} else if len(out.Subject.Organization) != len(template.Subject.Organization) {
  1563  			t.Errorf("%s: output subject organisation and template subject organisation don't match", test.name)
  1564  		} else if len(out.DNSNames) != len(template.DNSNames) {
  1565  			t.Errorf("%s: output DNS names and template DNS names don't match", test.name)
  1566  		} else if len(out.EmailAddresses) != len(template.EmailAddresses) {
  1567  			t.Errorf("%s: output email addresses and template email addresses don't match", test.name)
  1568  		} else if len(out.IPAddresses) != len(template.IPAddresses) {
  1569  			t.Errorf("%s: output IP addresses and template IP addresses names don't match", test.name)
  1570  		}
  1571  	}
  1572  }
  1573  
  1574  func marshalAndParseCSR(t *testing.T, template *CertificateRequest) *CertificateRequest {
  1575  	t.Helper()
  1576  	derBytes, err := CreateCertificateRequest(rand.Reader, template, testPrivateKey)
  1577  	if err != nil {
  1578  		t.Fatal(err)
  1579  	}
  1580  
  1581  	csr, err := ParseCertificateRequest(derBytes)
  1582  	if err != nil {
  1583  		t.Fatal(err)
  1584  	}
  1585  
  1586  	return csr
  1587  }
  1588  
  1589  func TestCertificateRequestOverrides(t *testing.T) {
  1590  	sanContents, err := marshalSANs([]string{"foo.example.com"}, nil, nil, nil)
  1591  	if err != nil {
  1592  		t.Fatal(err)
  1593  	}
  1594  
  1595  	template := CertificateRequest{
  1596  		Subject: pkix.Name{
  1597  			CommonName:   "test.example.com",
  1598  			Organization: []string{"Σ Acme Co"},
  1599  		},
  1600  		DNSNames: []string{"test.example.com"},
  1601  
  1602  		// An explicit extension should override the DNSNames from the
  1603  		// template.
  1604  		ExtraExtensions: []pkix.Extension{
  1605  			{
  1606  				Id:       oidExtensionSubjectAltName,
  1607  				Value:    sanContents,
  1608  				Critical: true,
  1609  			},
  1610  		},
  1611  	}
  1612  
  1613  	csr := marshalAndParseCSR(t, &template)
  1614  
  1615  	if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo.example.com" {
  1616  		t.Errorf("Extension did not override template. Got %v\n", csr.DNSNames)
  1617  	}
  1618  
  1619  	if len(csr.Extensions) != 1 || !csr.Extensions[0].Id.Equal(oidExtensionSubjectAltName) || !csr.Extensions[0].Critical {
  1620  		t.Errorf("SAN extension was not faithfully copied, got %#v", csr.Extensions)
  1621  	}
  1622  
  1623  	// If there is already an attribute with X.509 extensions then the
  1624  	// extra extensions should be added to it rather than creating a CSR
  1625  	// with two extension attributes.
  1626  
  1627  	template.Attributes = []pkix.AttributeTypeAndValueSET{
  1628  		{
  1629  			Type: oidExtensionRequest,
  1630  			Value: [][]pkix.AttributeTypeAndValue{
  1631  				{
  1632  					{
  1633  						Type:  oidExtensionAuthorityInfoAccess,
  1634  						Value: []byte("foo"),
  1635  					},
  1636  				},
  1637  			},
  1638  		},
  1639  	}
  1640  
  1641  	csr = marshalAndParseCSR(t, &template)
  1642  	if l := len(csr.Attributes); l != 1 {
  1643  		t.Errorf("incorrect number of attributes: %d\n", l)
  1644  	}
  1645  
  1646  	if !csr.Attributes[0].Type.Equal(oidExtensionRequest) ||
  1647  		len(csr.Attributes[0].Value) != 1 ||
  1648  		len(csr.Attributes[0].Value[0]) != 2 {
  1649  		t.Errorf("bad attributes: %#v\n", csr.Attributes)
  1650  	}
  1651  
  1652  	sanContents2, err := marshalSANs([]string{"foo2.example.com"}, nil, nil, nil)
  1653  	if err != nil {
  1654  		t.Fatal(err)
  1655  	}
  1656  
  1657  	// Extensions in Attributes should override those in ExtraExtensions.
  1658  	template.Attributes[0].Value[0] = append(template.Attributes[0].Value[0], pkix.AttributeTypeAndValue{
  1659  		Type:  oidExtensionSubjectAltName,
  1660  		Value: sanContents2,
  1661  	})
  1662  
  1663  	csr = marshalAndParseCSR(t, &template)
  1664  
  1665  	if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo2.example.com" {
  1666  		t.Errorf("Attributes did not override ExtraExtensions. Got %v\n", csr.DNSNames)
  1667  	}
  1668  }
  1669  
  1670  func TestParseCertificateRequest(t *testing.T) {
  1671  	for _, csrBase64 := range csrBase64Array {
  1672  		csrBytes := fromBase64(csrBase64)
  1673  		csr, err := ParseCertificateRequest(csrBytes)
  1674  		if err != nil {
  1675  			t.Fatalf("failed to parse CSR: %s", err)
  1676  		}
  1677  
  1678  		if len(csr.EmailAddresses) != 1 || csr.EmailAddresses[0] != "gopher@golang.org" {
  1679  			t.Errorf("incorrect email addresses found: %v", csr.EmailAddresses)
  1680  		}
  1681  
  1682  		if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "test.example.com" {
  1683  			t.Errorf("incorrect DNS names found: %v", csr.DNSNames)
  1684  		}
  1685  
  1686  		if len(csr.Subject.Country) != 1 || csr.Subject.Country[0] != "AU" {
  1687  			t.Errorf("incorrect Subject name: %v", csr.Subject)
  1688  		}
  1689  
  1690  		found := false
  1691  		for _, e := range csr.Extensions {
  1692  			if e.Id.Equal(oidExtensionBasicConstraints) {
  1693  				found = true
  1694  				break
  1695  			}
  1696  		}
  1697  		if !found {
  1698  			t.Errorf("basic constraints extension not found in CSR")
  1699  		}
  1700  	}
  1701  }
  1702  
  1703  func TestCriticalFlagInCSRRequestedExtensions(t *testing.T) {
  1704  	// This CSR contains an extension request where the extensions have a
  1705  	// critical flag in them. In the past we failed to handle this.
  1706  	const csrBase64 = "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"
  1707  
  1708  	csrBytes := fromBase64(csrBase64)
  1709  	csr, err := ParseCertificateRequest(csrBytes)
  1710  	if err != nil {
  1711  		t.Fatalf("failed to parse CSR: %s", err)
  1712  	}
  1713  
  1714  	expected := []struct {
  1715  		Id    asn1.ObjectIdentifier
  1716  		Value []byte
  1717  	}{
  1718  		{oidExtensionBasicConstraints, fromBase64("MAYBAf8CAQA=")},
  1719  		{oidExtensionKeyUsage, fromBase64("AwIChA==")},
  1720  	}
  1721  
  1722  	if n := len(csr.Extensions); n != len(expected) {
  1723  		t.Fatalf("expected to find %d extensions but found %d", len(expected), n)
  1724  	}
  1725  
  1726  	for i, extension := range csr.Extensions {
  1727  		if !extension.Id.Equal(expected[i].Id) {
  1728  			t.Fatalf("extension #%d has unexpected type %v (expected %v)", i, extension.Id, expected[i].Id)
  1729  		}
  1730  
  1731  		if !bytes.Equal(extension.Value, expected[i].Value) {
  1732  			t.Fatalf("extension #%d has unexpected contents %x (expected %x)", i, extension.Value, expected[i].Value)
  1733  		}
  1734  	}
  1735  }
  1736  
  1737  // serialiseAndParse generates a self-signed certificate from template and
  1738  // returns a parsed version of it.
  1739  func serialiseAndParse(t *testing.T, template *Certificate) *Certificate {
  1740  	t.Helper()
  1741  	derBytes, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey)
  1742  	if err != nil {
  1743  		t.Fatalf("failed to create certificate: %s", err)
  1744  		return nil
  1745  	}
  1746  
  1747  	cert, err := ParseCertificate(derBytes)
  1748  	if err != nil {
  1749  		t.Fatalf("failed to parse certificate: %s", err)
  1750  		return nil
  1751  	}
  1752  
  1753  	return cert
  1754  }
  1755  
  1756  func TestMaxPathLenNotCA(t *testing.T) {
  1757  	template := &Certificate{
  1758  		SerialNumber: big.NewInt(1),
  1759  		Subject: pkix.Name{
  1760  			CommonName: "Σ Acme Co",
  1761  		},
  1762  		NotBefore: time.Unix(1000, 0),
  1763  		NotAfter:  time.Unix(100000, 0),
  1764  
  1765  		BasicConstraintsValid: true,
  1766  		IsCA:                  false,
  1767  	}
  1768  	if m := serialiseAndParse(t, template).MaxPathLen; m != -1 {
  1769  		t.Errorf("MaxPathLen should be -1 when IsCa is false, got %d", m)
  1770  	}
  1771  
  1772  	template.MaxPathLen = -1
  1773  	if m := serialiseAndParse(t, template).MaxPathLen; m != -1 {
  1774  		t.Errorf("MaxPathLen should be -1 when IsCa is false and MaxPathLen set to -1, got %d", m)
  1775  	}
  1776  
  1777  	template.MaxPathLen = 5
  1778  	if _, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey); err == nil {
  1779  		t.Error("specifying a MaxPathLen when IsCA is false should fail")
  1780  	}
  1781  
  1782  	template.MaxPathLen = 0
  1783  	template.MaxPathLenZero = true
  1784  	if _, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey); err == nil {
  1785  		t.Error("setting MaxPathLenZero when IsCA is false should fail")
  1786  	}
  1787  
  1788  	template.BasicConstraintsValid = false
  1789  	if m := serialiseAndParse(t, template).MaxPathLen; m != 0 {
  1790  		t.Errorf("Bad MaxPathLen should be ignored if BasicConstraintsValid is false, got %d", m)
  1791  	}
  1792  }
  1793  
  1794  func TestMaxPathLen(t *testing.T) {
  1795  	template := &Certificate{
  1796  		SerialNumber: big.NewInt(1),
  1797  		Subject: pkix.Name{
  1798  			CommonName: "Σ Acme Co",
  1799  		},
  1800  		NotBefore: time.Unix(1000, 0),
  1801  		NotAfter:  time.Unix(100000, 0),
  1802  
  1803  		BasicConstraintsValid: true,
  1804  		IsCA:                  true,
  1805  	}
  1806  
  1807  	cert1 := serialiseAndParse(t, template)
  1808  	if m := cert1.MaxPathLen; m != -1 {
  1809  		t.Errorf("Omitting MaxPathLen didn't turn into -1, got %d", m)
  1810  	}
  1811  	if cert1.MaxPathLenZero {
  1812  		t.Errorf("Omitting MaxPathLen resulted in MaxPathLenZero")
  1813  	}
  1814  
  1815  	template.MaxPathLen = 1
  1816  	cert2 := serialiseAndParse(t, template)
  1817  	if m := cert2.MaxPathLen; m != 1 {
  1818  		t.Errorf("Setting MaxPathLen didn't work. Got %d but set 1", m)
  1819  	}
  1820  	if cert2.MaxPathLenZero {
  1821  		t.Errorf("Setting MaxPathLen resulted in MaxPathLenZero")
  1822  	}
  1823  
  1824  	template.MaxPathLen = 0
  1825  	template.MaxPathLenZero = true
  1826  	cert3 := serialiseAndParse(t, template)
  1827  	if m := cert3.MaxPathLen; m != 0 {
  1828  		t.Errorf("Setting MaxPathLenZero didn't work, got %d", m)
  1829  	}
  1830  	if !cert3.MaxPathLenZero {
  1831  		t.Errorf("Setting MaxPathLen to zero didn't result in MaxPathLenZero")
  1832  	}
  1833  }
  1834  
  1835  func TestNoAuthorityKeyIdInSelfSignedCert(t *testing.T) {
  1836  	template := &Certificate{
  1837  		SerialNumber: big.NewInt(1),
  1838  		Subject: pkix.Name{
  1839  			CommonName: "Σ Acme Co",
  1840  		},
  1841  		NotBefore: time.Unix(1000, 0),
  1842  		NotAfter:  time.Unix(100000, 0),
  1843  
  1844  		BasicConstraintsValid: true,
  1845  		IsCA:                  true,
  1846  		SubjectKeyId:          []byte{1, 2, 3, 4},
  1847  	}
  1848  
  1849  	if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) != 0 {
  1850  		t.Fatalf("self-signed certificate contained default authority key id")
  1851  	}
  1852  
  1853  	template.AuthorityKeyId = []byte{1, 2, 3, 4}
  1854  	if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) == 0 {
  1855  		t.Fatalf("self-signed certificate erased explicit authority key id")
  1856  	}
  1857  }
  1858  
  1859  func TestNoSubjectKeyIdInCert(t *testing.T) {
  1860  	template := &Certificate{
  1861  		SerialNumber: big.NewInt(1),
  1862  		Subject: pkix.Name{
  1863  			CommonName: "Σ Acme Co",
  1864  		},
  1865  		NotBefore: time.Unix(1000, 0),
  1866  		NotAfter:  time.Unix(100000, 0),
  1867  
  1868  		BasicConstraintsValid: true,
  1869  		IsCA:                  true,
  1870  	}
  1871  	if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) == 0 {
  1872  		t.Fatalf("self-signed certificate did not generate subject key id using the public key")
  1873  	}
  1874  
  1875  	template.IsCA = false
  1876  	if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) != 0 {
  1877  		t.Fatalf("self-signed certificate generated subject key id when it isn't a CA")
  1878  	}
  1879  
  1880  	template.SubjectKeyId = []byte{1, 2, 3, 4}
  1881  	if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) == 0 {
  1882  		t.Fatalf("self-signed certificate erased explicit subject key id")
  1883  	}
  1884  }
  1885  
  1886  func TestASN1BitLength(t *testing.T) {
  1887  	tests := []struct {
  1888  		bytes  []byte
  1889  		bitLen int
  1890  	}{
  1891  		{nil, 0},
  1892  		{[]byte{0x00}, 0},
  1893  		{[]byte{0x00, 0x00}, 0},
  1894  		{[]byte{0xf0}, 4},
  1895  		{[]byte{0x88}, 5},
  1896  		{[]byte{0xff}, 8},
  1897  		{[]byte{0xff, 0x80}, 9},
  1898  		{[]byte{0xff, 0x81}, 16},
  1899  	}
  1900  
  1901  	for i, test := range tests {
  1902  		if got := asn1BitLength(test.bytes); got != test.bitLen {
  1903  			t.Errorf("#%d: calculated bit-length of %d for %x, wanted %d", i, got, test.bytes, test.bitLen)
  1904  		}
  1905  	}
  1906  }
  1907  
  1908  func TestVerifyEmptyCertificate(t *testing.T) {
  1909  	if _, err := new(Certificate).Verify(VerifyOptions{}); err != errNotParsed {
  1910  		t.Errorf("Verifying empty certificate resulted in unexpected error: %q (wanted %q)", err, errNotParsed)
  1911  	}
  1912  }
  1913  
  1914  func TestInsecureAlgorithmErrorString(t *testing.T) {
  1915  	tests := []struct {
  1916  		sa   SignatureAlgorithm
  1917  		want string
  1918  	}{
  1919  		{MD5WithRSA, "x509: cannot verify signature: insecure algorithm MD5-RSA"},
  1920  		{SHA1WithRSA, "x509: cannot verify signature: insecure algorithm SHA1-RSA"},
  1921  		{ECDSAWithSHA1, "x509: cannot verify signature: insecure algorithm ECDSA-SHA1"},
  1922  		{MD2WithRSA, "x509: cannot verify signature: insecure algorithm 1"},
  1923  		{-1, "x509: cannot verify signature: insecure algorithm -1"},
  1924  		{0, "x509: cannot verify signature: insecure algorithm 0"},
  1925  		{9999, "x509: cannot verify signature: insecure algorithm 9999"},
  1926  	}
  1927  	for i, tt := range tests {
  1928  		if got := fmt.Sprint(InsecureAlgorithmError(tt.sa)); got != tt.want {
  1929  			t.Errorf("%d. mismatch.\n got: %s\nwant: %s\n", i, got, tt.want)
  1930  		}
  1931  	}
  1932  }
  1933  
  1934  // These CSR was generated with OpenSSL:
  1935  //
  1936  //	openssl req -out CSR.csr -new -sha256 -nodes -keyout privateKey.key -config openssl.cnf
  1937  //
  1938  // With openssl.cnf containing the following sections:
  1939  //
  1940  //	[ v3_req ]
  1941  //	basicConstraints = CA:FALSE
  1942  //	keyUsage = nonRepudiation, digitalSignature, keyEncipherment
  1943  //	subjectAltName = email:gopher@golang.org,DNS:test.example.com
  1944  //	[ req_attributes ]
  1945  //	challengePassword = ignored challenge
  1946  //	unstructuredName  = ignored unstructured name
  1947  var csrBase64Array = [...]string{
  1948  	// Just [ v3_req ]
  1949  	"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",
  1950  	// Both [ v3_req ] and [ req_attributes ]
  1951  	"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",
  1952  }
  1953  
  1954  var md5cert = `
  1955  -----BEGIN CERTIFICATE-----
  1956  MIIB4TCCAUoCCQCfmw3vMgPS5TANBgkqhkiG9w0BAQQFADA1MQswCQYDVQQGEwJB
  1957  VTETMBEGA1UECBMKU29tZS1TdGF0ZTERMA8GA1UEChMITUQ1IEluYy4wHhcNMTUx
  1958  MjAzMTkyOTMyWhcNMjkwODEyMTkyOTMyWjA1MQswCQYDVQQGEwJBVTETMBEGA1UE
  1959  CBMKU29tZS1TdGF0ZTERMA8GA1UEChMITUQ1IEluYy4wgZ8wDQYJKoZIhvcNAQEB
  1960  BQADgY0AMIGJAoGBANrq2nhLQj5mlXbpVX3QUPhfEm/vdEqPkoWtR/jRZIWm4WGf
  1961  Wpq/LKHJx2Pqwn+t117syN8l4U5unyAi1BJSXjBwPZNd7dXjcuJ+bRLV7FZ/iuvs
  1962  cfYyQQFTxan4TaJMd0x1HoNDbNbjHa02IyjjYE/r3mb/PIg+J2t5AZEh80lPAgMB
  1963  AAEwDQYJKoZIhvcNAQEEBQADgYEAjGzp3K3ey/YfKHohf33yHHWd695HQxDAP+wY
  1964  cs9/TAyLR+gJzJP7d18EcDDLJWVi7bhfa4EAD86di05azOh9kWSn4b3o9QYRGCSw
  1965  GNnI3Zk0cwNKA49hZntKKiy22DhRk7JAHF01d6Bu3KkHkmENrtJ+zj/+159WAnUa
  1966  qViorq4=
  1967  -----END CERTIFICATE-----
  1968  `
  1969  
  1970  func TestMD5(t *testing.T) {
  1971  	pemBlock, _ := pem.Decode([]byte(md5cert))
  1972  	cert, err := ParseCertificate(pemBlock.Bytes)
  1973  	if err != nil {
  1974  		t.Fatalf("failed to parse certificate: %s", err)
  1975  	}
  1976  	if sa := cert.SignatureAlgorithm; sa != MD5WithRSA {
  1977  		t.Errorf("signature algorithm is %v, want %v", sa, MD5WithRSA)
  1978  	}
  1979  	if err = cert.CheckSignatureFrom(cert); err == nil {
  1980  		t.Fatalf("certificate verification succeeded incorrectly")
  1981  	}
  1982  	if _, ok := err.(InsecureAlgorithmError); !ok {
  1983  		t.Fatalf("certificate verification returned %v (%T), wanted InsecureAlgorithmError", err, err)
  1984  	}
  1985  }
  1986  
  1987  func TestSHA1(t *testing.T) {
  1988  	pemBlock, _ := pem.Decode([]byte(ecdsaSHA1CertPem))
  1989  	cert, err := ParseCertificate(pemBlock.Bytes)
  1990  	if err != nil {
  1991  		t.Fatalf("failed to parse certificate: %s", err)
  1992  	}
  1993  	if sa := cert.SignatureAlgorithm; sa != ECDSAWithSHA1 {
  1994  		t.Errorf("signature algorithm is %v, want %v", sa, ECDSAWithSHA1)
  1995  	}
  1996  	if err = cert.CheckSignatureFrom(cert); err == nil {
  1997  		t.Fatalf("certificate verification succeeded incorrectly")
  1998  	}
  1999  	if _, ok := err.(InsecureAlgorithmError); !ok {
  2000  		t.Fatalf("certificate verification returned %v (%T), wanted InsecureAlgorithmError", err, err)
  2001  	}
  2002  }
  2003  
  2004  // certMissingRSANULL contains an RSA public key where the AlgorithmIdentifier
  2005  // parameters are omitted rather than being an ASN.1 NULL.
  2006  const certMissingRSANULL = `
  2007  -----BEGIN CERTIFICATE-----
  2008  MIIB7TCCAVigAwIBAgIBADALBgkqhkiG9w0BAQUwJjEQMA4GA1UEChMHQWNtZSBD
  2009  bzESMBAGA1UEAxMJMTI3LjAuMC4xMB4XDTExMTIwODA3NTUxMloXDTEyMTIwNzA4
  2010  MDAxMlowJjEQMA4GA1UEChMHQWNtZSBDbzESMBAGA1UEAxMJMTI3LjAuMC4xMIGc
  2011  MAsGCSqGSIb3DQEBAQOBjAAwgYgCgYBO0Hsx44Jk2VnAwoekXh6LczPHY1PfZpIG
  2012  hPZk1Y/kNqcdK+izIDZFI7Xjla7t4PUgnI2V339aEu+H5Fto5OkOdOwEin/ekyfE
  2013  ARl6vfLcPRSr0FTKIQzQTW6HLlzF0rtNS0/Otiz3fojsfNcCkXSmHgwa2uNKWi7e
  2014  E5xMQIhZkwIDAQABozIwMDAOBgNVHQ8BAf8EBAMCAKAwDQYDVR0OBAYEBAECAwQw
  2015  DwYDVR0jBAgwBoAEAQIDBDALBgkqhkiG9w0BAQUDgYEANh+zegx1yW43RmEr1b3A
  2016  p0vMRpqBWHyFeSnIyMZn3TJWRSt1tukkqVCavh9a+hoV2cxVlXIWg7nCto/9iIw4
  2017  hB2rXZIxE0/9gzvGnfERYraL7KtnvshksBFQRlgXa5kc0x38BvEO5ZaoDPl4ILdE
  2018  GFGNEH5PlGffo05wc46QkYU=
  2019  -----END CERTIFICATE-----`
  2020  
  2021  func TestRSAMissingNULLParameters(t *testing.T) {
  2022  	block, _ := pem.Decode([]byte(certMissingRSANULL))
  2023  	if _, err := ParseCertificate(block.Bytes); err == nil {
  2024  		t.Error("unexpected success when parsing certificate with missing RSA NULL parameter")
  2025  	} else if !strings.Contains(err.Error(), "missing NULL") {
  2026  		t.Errorf("unrecognised error when parsing certificate with missing RSA NULL parameter: %s", err)
  2027  	}
  2028  }
  2029  
  2030  const certISOOID = `-----BEGIN CERTIFICATE-----
  2031  MIIB5TCCAVKgAwIBAgIQNwyL3RPWV7dJQp34HwZG9DAJBgUrDgMCHQUAMBExDzAN
  2032  BgNVBAMTBm15dGVzdDAeFw0xNjA4MDkyMjExMDVaFw0zOTEyMzEyMzU5NTlaMBEx
  2033  DzANBgNVBAMTBm15dGVzdDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEArzIH
  2034  GsyDB3ohIGkkvijF2PTRUX1bvOtY1eUUpjwHyu0twpAKSuaQv2Ha+/63+aHe8O86
  2035  BT+98wjXFX6RFSagtAujo80rIF2dSm33BGt18pDN8v6zp93dnAm0jRaSQrHJ75xw
  2036  5O+S1oEYR1LtUoFJy6qB104j6aINBAgOiLIKiMkCAwEAAaNGMEQwQgYDVR0BBDsw
  2037  OYAQVuYVQ/WDjdGSkZRlTtJDNKETMBExDzANBgNVBAMTBm15dGVzdIIQtwyL3RPW
  2038  V7dJQp34HwZG9DAJBgUrDgMCHQUAA4GBABngrSkH7vG5lY4sa4AZF59lAAXqBVJE
  2039  J4TBiKC62hCdZv18rBleP6ETfhbPg7pTs8p4ebQbpmtNxRS9Lw3MzQ8Ya5Ybwzj2
  2040  NwBSyCtCQl7mrEg4nJqJl4A2EUhnET/oVxU0oTV/SZ3ziGXcY1oG1s6vidV7TZTu
  2041  MCRtdSdaM7g3
  2042  -----END CERTIFICATE-----`
  2043  
  2044  func TestISOOIDInCertificate(t *testing.T) {
  2045  	block, _ := pem.Decode([]byte(certISOOID))
  2046  	if cert, err := ParseCertificate(block.Bytes); err != nil {
  2047  		t.Errorf("certificate with ISO OID failed to parse: %s", err)
  2048  	} else if cert.SignatureAlgorithm == UnknownSignatureAlgorithm {
  2049  		t.Errorf("ISO OID not recognised in certificate")
  2050  	}
  2051  }
  2052  
  2053  // certMultipleRDN contains a RelativeDistinguishedName with two elements (the
  2054  // common name and serial number). This particular certificate was the first
  2055  // such certificate in the “Pilot” Certificate Transparency log.
  2056  const certMultipleRDN = `
  2057  -----BEGIN CERTIFICATE-----
  2058  MIIFRzCCBC+gAwIBAgIEOl59NTANBgkqhkiG9w0BAQUFADA9MQswCQYDVQQGEwJz
  2059  aTEbMBkGA1UEChMSc3RhdGUtaW5zdGl0dXRpb25zMREwDwYDVQQLEwhzaWdvdi1j
  2060  YTAeFw0xMjExMTYxMDUyNTdaFw0xNzExMTYxMjQ5MDVaMIGLMQswCQYDVQQGEwJz
  2061  aTEbMBkGA1UEChMSc3RhdGUtaW5zdGl0dXRpb25zMRkwFwYDVQQLExB3ZWItY2Vy
  2062  dGlmaWNhdGVzMRAwDgYDVQQLEwdTZXJ2ZXJzMTIwFAYDVQQFEw0xMjM2NDg0MDEw
  2063  MDEwMBoGA1UEAxMTZXBvcnRhbC5tc3MuZWR1cy5zaTCCASIwDQYJKoZIhvcNAQEB
  2064  BQADggEPADCCAQoCggEBAMrNkZH9MPuBTjMGNk3sJX8V+CkFx/4ru7RTlLS6dlYM
  2065  098dtSfJ3s2w0p/1NB9UmR8j0yS0Kg6yoZ3ShsSO4DWBtcQD8820a6BYwqxxQTNf
  2066  HSRZOc+N/4TQrvmK6t4k9Aw+YEYTMrWOU4UTeyhDeCcUsBdh7HjfWsVaqNky+2sv
  2067  oic3zP5gF+2QfPkvOoHT3FLR8olNhViIE6Kk3eFIEs4dkq/ZzlYdLb8pHQoj/sGI
  2068  zFmA5AFvm1HURqOmJriFjBwaCtn8AVEYOtQrnUCzJYu1ex8azyS2ZgYMX0u8A5Z/
  2069  y2aMS/B2W+H79WcgLpK28vPwe7vam0oFrVytAd+u65ECAwEAAaOCAf4wggH6MA4G
  2070  A1UdDwEB/wQEAwIFoDBABgNVHSAEOTA3MDUGCisGAQQBr1kBAwMwJzAlBggrBgEF
  2071  BQcCARYZaHR0cDovL3d3dy5jYS5nb3Yuc2kvY3BzLzAfBgNVHREEGDAWgRRwb2Rw
  2072  b3JhLm1pemtzQGdvdi5zaTCB8QYDVR0fBIHpMIHmMFWgU6BRpE8wTTELMAkGA1UE
  2073  BhMCc2kxGzAZBgNVBAoTEnN0YXRlLWluc3RpdHV0aW9uczERMA8GA1UECxMIc2ln
  2074  b3YtY2ExDjAMBgNVBAMTBUNSTDM5MIGMoIGJoIGGhldsZGFwOi8veDUwMC5nb3Yu
  2075  c2kvb3U9c2lnb3YtY2Esbz1zdGF0ZS1pbnN0aXR1dGlvbnMsYz1zaT9jZXJ0aWZp
  2076  Y2F0ZVJldm9jYXRpb25MaXN0P2Jhc2WGK2h0dHA6Ly93d3cuc2lnb3YtY2EuZ292
  2077  LnNpL2NybC9zaWdvdi1jYS5jcmwwKwYDVR0QBCQwIoAPMjAxMjExMTYxMDUyNTda
  2078  gQ8yMDE3MTExNjEyNDkwNVowHwYDVR0jBBgwFoAUHvjUU2uzgwbpBAZXAvmlv8ZY
  2079  PHIwHQYDVR0OBBYEFGI1Duuu+wTGDZka/xHNbwcbM69ZMAkGA1UdEwQCMAAwGQYJ
  2080  KoZIhvZ9B0EABAwwChsEVjcuMQMCA6gwDQYJKoZIhvcNAQEFBQADggEBAHny0K1y
  2081  BQznrzDu3DDpBcGYguKU0dvU9rqsV1ua4nxkriSMWjgsX6XJFDdDW60I3P4VWab5
  2082  ag5fZzbGqi8kva/CzGgZh+CES0aWCPy+4Gb8lwOTt+854/laaJvd6kgKTER7z7U9
  2083  9C86Ch2y4sXNwwwPJ1A9dmrZJZOcJjS/WYZgwaafY2Hdxub5jqPE5nehwYUPVu9R
  2084  uH6/skk4OEKcfOtN0hCnISOVuKYyS4ANARWRG5VGHIH06z3lGUVARFRJ61gtAprd
  2085  La+fgSS+LVZ+kU2TkeoWAKvGq8MAgDq4D4Xqwekg7WKFeuyusi/NI5rm40XgjBMF
  2086  DF72IUofoVt7wo0=
  2087  -----END CERTIFICATE-----`
  2088  
  2089  func TestMultipleRDN(t *testing.T) {
  2090  	block, _ := pem.Decode([]byte(certMultipleRDN))
  2091  	cert, err := ParseCertificate(block.Bytes)
  2092  	if err != nil {
  2093  		t.Fatalf("certificate with two elements in an RDN failed to parse: %v", err)
  2094  	}
  2095  
  2096  	if want := "eportal.mss.edus.si"; cert.Subject.CommonName != want {
  2097  		t.Errorf("got common name of %q, but want %q", cert.Subject.CommonName, want)
  2098  	}
  2099  
  2100  	if want := "1236484010010"; cert.Subject.SerialNumber != want {
  2101  		t.Errorf("got serial number of %q, but want %q", cert.Subject.SerialNumber, want)
  2102  	}
  2103  }
  2104  
  2105  func TestSystemCertPool(t *testing.T) {
  2106  	if runtime.GOOS == "windows" || runtime.GOOS == "darwin" || runtime.GOOS == "ios" {
  2107  		t.Skip("not implemented on Windows (Issue 16736, 18609) or darwin (Issue 46287)")
  2108  	}
  2109  	a, err := SystemCertPool()
  2110  	if err != nil {
  2111  		t.Fatal(err)
  2112  	}
  2113  	b, err := SystemCertPool()
  2114  	if err != nil {
  2115  		t.Fatal(err)
  2116  	}
  2117  	if !certPoolEqual(a, b) {
  2118  		t.Fatal("two calls to SystemCertPool had different results")
  2119  	}
  2120  	if ok := b.AppendCertsFromPEM([]byte(`
  2121  -----BEGIN CERTIFICATE-----
  2122  MIIDBjCCAe6gAwIBAgIRANXM5I3gjuqDfTp/PYrs+u8wDQYJKoZIhvcNAQELBQAw
  2123  EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0xODAzMjcxOTU2MjFaFw0xOTAzMjcxOTU2
  2124  MjFaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
  2125  ggEKAoIBAQDK+9m3rjsO2Djes6bIYQZ3eV29JF09ZrjOrEHLtaKrD6/acsoSoTsf
  2126  cQr+rzzztdB5ijWXCS64zo/0OiqBeZUNZ67jVdToa9qW5UYe2H0Y+ZNdfA5GYMFD
  2127  yk/l3/uBu3suTZPfXiW2TjEi27Q8ruNUIZ54DpTcs6y2rBRFzadPWwn/VQMlvRXM
  2128  jrzl8Y08dgnYmaAHprxVzwMXcQ/Brol+v9GvjaH1DooHqkn8O178wsPQNhdtvN01
  2129  IXL46cYdcUwWrE/GX5u+9DaSi+0KWxAPQ+NVD5qUI0CKl4714yGGh7feXMjJdHgl
  2130  VG4QJZlJvC4FsURgCHJT6uHGIelnSwhbAgMBAAGjVzBVMA4GA1UdDwEB/wQEAwIF
  2131  oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMCAGA1UdEQQZMBeC
  2132  FVRlc3RTeXN0ZW1DZXJ0UG9vbC5nbzANBgkqhkiG9w0BAQsFAAOCAQEAwuSRx/VR
  2133  BKh2ICxZjL6jBwk/7UlU1XKbhQD96RqkidDNGEc6eLZ90Z5XXTurEsXqdm5jQYPs
  2134  1cdcSW+fOSMl7MfW9e5tM66FaIPZl9rKZ1r7GkOfgn93xdLAWe8XHd19xRfDreub
  2135  YC8DVqgLASOEYFupVSl76ktPfxkU5KCvmUf3P2PrRybk1qLGFytGxfyice2gHSNI
  2136  gify3K/+H/7wCkyFW4xYvzl7WW4mXxoqPRPjQt1J423DhnnQ4G1P8V/vhUpXNXOq
  2137  N9IEPnWuihC09cyx/WMQIUlWnaQLHdfpPS04Iez3yy2PdfXJzwfPrja7rNE+skK6
  2138  pa/O1nF0AfWOpw==
  2139  -----END CERTIFICATE-----
  2140  	`)); !ok {
  2141  		t.Fatal("AppendCertsFromPEM failed")
  2142  	}
  2143  	if reflect.DeepEqual(a, b) {
  2144  		t.Fatal("changing one pool modified the other")
  2145  	}
  2146  }
  2147  
  2148  const emptyNameConstraintsPEM = `
  2149  -----BEGIN CERTIFICATE-----
  2150  MIIC1jCCAb6gAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwKDEmMCQGA1UEAxMdRW1w
  2151  dHkgbmFtZSBjb25zdHJhaW50cyBpc3N1ZXIwHhcNMTMwMjAxMDAwMDAwWhcNMjAw
  2152  NTMwMTA0ODM4WjAhMR8wHQYDVQQDExZFbXB0eSBuYW1lIGNvbnN0cmFpbnRzMIIB
  2153  IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwriElUIt3LCqmJObs+yDoWPD
  2154  F5IqgWk6moIobYjPfextZiYU6I3EfvAwoNxPDkN2WowcocUZMJbEeEq5ebBksFnx
  2155  f12gBxlIViIYwZAzu7aFvhDMyPKQI3C8CG0ZSC9ABZ1E3umdA3CEueNOmP/TChNq
  2156  Cl23+BG1Qb/PJkpAO+GfpWSVhTcV53Mf/cKvFHcjGNrxzdSoq9fyW7a6gfcGEQY0
  2157  LVkmwFWUfJ0wT8kaeLr0E0tozkIfo01KNWNzv6NcYP80QOBRDlApWu9ODmEVJHPD
  2158  blx4jzTQ3JLa+4DvBNOjVUOp+mgRmjiW0rLdrxwOxIqIOwNjweMCp/hgxX/hTQID
  2159  AQABoxEwDzANBgNVHR4EBjAEoAChADANBgkqhkiG9w0BAQsFAAOCAQEAWG+/zUMH
  2160  QhP8uNCtgSHyim/vh7wminwAvWgMKxlkLBFns6nZeQqsOV1lABY7U0Zuoqa1Z5nb
  2161  6L+iJa4ElREJOi/erLc9uLwBdDCAR0hUTKD7a6i4ooS39DTle87cUnj0MW1CUa6H
  2162  v5SsvpYW+1XleYJk/axQOOTcy4Es53dvnZsjXH0EA/QHnn7UV+JmlE3rtVxcYp6M
  2163  LYPmRhTioROA/drghicRkiu9hxdPyxkYS16M5g3Zj30jdm+k/6C6PeNtN9YmOOga
  2164  nCOSyFYfGhqOANYzpmuV+oIedAsPpIbfIzN8njYUs1zio+1IoI4o8ddM9sCbtPU8
  2165  o+WoY6IsCKXV/g==
  2166  -----END CERTIFICATE-----`
  2167  
  2168  func TestEmptyNameConstraints(t *testing.T) {
  2169  	block, _ := pem.Decode([]byte(emptyNameConstraintsPEM))
  2170  	_, err := ParseCertificate(block.Bytes)
  2171  	if err == nil {
  2172  		t.Fatal("unexpected success")
  2173  	}
  2174  
  2175  	const expected = "empty name constraints"
  2176  	if str := err.Error(); !strings.Contains(str, expected) {
  2177  		t.Errorf("expected %q in error but got %q", expected, str)
  2178  	}
  2179  }
  2180  
  2181  func TestPKIXNameString(t *testing.T) {
  2182  	der, err := base64.StdEncoding.DecodeString(certBytes)
  2183  	if err != nil {
  2184  		t.Fatal(err)
  2185  	}
  2186  	certs, err := ParseCertificates(der)
  2187  	if err != nil {
  2188  		t.Fatal(err)
  2189  	}
  2190  
  2191  	// Check that parsed non-standard attributes are printed.
  2192  	rdns := pkix.Name{
  2193  		Locality: []string{"Gophertown"},
  2194  		ExtraNames: []pkix.AttributeTypeAndValue{
  2195  			{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
  2196  	}.ToRDNSequence()
  2197  	nn := pkix.Name{}
  2198  	nn.FillFromRDNSequence(&rdns)
  2199  
  2200  	// Check that zero-length non-nil ExtraNames hide Names.
  2201  	extra := []pkix.AttributeTypeAndValue{
  2202  		{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "backing array"}}
  2203  	extraNotNil := pkix.Name{
  2204  		Locality:   []string{"Gophertown"},
  2205  		ExtraNames: extra[:0],
  2206  		Names: []pkix.AttributeTypeAndValue{
  2207  			{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
  2208  	}
  2209  
  2210  	tests := []struct {
  2211  		dn   pkix.Name
  2212  		want string
  2213  	}{
  2214  		{nn, "L=Gophertown,1.2.3.4.5=golang.org"},
  2215  		{extraNotNil, "L=Gophertown"},
  2216  		{pkix.Name{
  2217  			CommonName:         "Steve Kille",
  2218  			Organization:       []string{"Isode Limited"},
  2219  			OrganizationalUnit: []string{"RFCs"},
  2220  			Locality:           []string{"Richmond"},
  2221  			Province:           []string{"Surrey"},
  2222  			StreetAddress:      []string{"The Square"},
  2223  			PostalCode:         []string{"TW9 1DT"},
  2224  			SerialNumber:       "RFC 2253",
  2225  			Country:            []string{"GB"},
  2226  		}, "SERIALNUMBER=RFC 2253,CN=Steve Kille,OU=RFCs,O=Isode Limited,POSTALCODE=TW9 1DT,STREET=The Square,L=Richmond,ST=Surrey,C=GB"},
  2227  		{certs[0].Subject,
  2228  			"CN=mail.google.com,O=Google LLC,L=Mountain View,ST=California,C=US"},
  2229  		{pkix.Name{
  2230  			Organization: []string{"#Google, Inc. \n-> 'Alphabet\" "},
  2231  			Country:      []string{"US"},
  2232  		}, "O=\\#Google\\, Inc. \n-\\> 'Alphabet\\\"\\ ,C=US"},
  2233  		{pkix.Name{
  2234  			CommonName:   "foo.com",
  2235  			Organization: []string{"Gopher Industries"},
  2236  			ExtraNames: []pkix.AttributeTypeAndValue{
  2237  				{Type: asn1.ObjectIdentifier([]int{2, 5, 4, 3}), Value: "bar.com"}},
  2238  		}, "CN=bar.com,O=Gopher Industries"},
  2239  		{pkix.Name{
  2240  			Locality: []string{"Gophertown"},
  2241  			ExtraNames: []pkix.AttributeTypeAndValue{
  2242  				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
  2243  		}, "1.2.3.4.5=golang.org,L=Gophertown"},
  2244  		// If there are no ExtraNames, the Names are printed instead.
  2245  		{pkix.Name{
  2246  			Locality: []string{"Gophertown"},
  2247  			Names: []pkix.AttributeTypeAndValue{
  2248  				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
  2249  		}, "L=Gophertown,1.2.3.4.5=golang.org"},
  2250  		// If there are both, print only the ExtraNames.
  2251  		{pkix.Name{
  2252  			Locality: []string{"Gophertown"},
  2253  			ExtraNames: []pkix.AttributeTypeAndValue{
  2254  				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}},
  2255  			Names: []pkix.AttributeTypeAndValue{
  2256  				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 6}), Value: "example.com"}},
  2257  		}, "1.2.3.4.5=golang.org,L=Gophertown"},
  2258  		// Non-string value falls back to hex-encoded DER (issue 33093).
  2259  		{pkix.Name{
  2260  			CommonName: "foobar",
  2261  			ExtraNames: []pkix.AttributeTypeAndValue{
  2262  				{Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4}), Value: 42}},
  2263  		}, "1.2.3.4=#02012a,CN=foobar"},
  2264  		// String containing non-PrintableString chars (here, UTF-8) is still
  2265  		// rendered as a string per RFC 2253 §2.4, not hex-encoded.
  2266  		{pkix.Name{
  2267  			CommonName: "foobar",
  2268  			ExtraNames: []pkix.AttributeTypeAndValue{
  2269  				{Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "Lučić"}},
  2270  		}, "2.3.4.5=Lučić,CN=foobar"},
  2271  		// String beginning with '#' has the '#' escaped (RFC 2253 §2.4).
  2272  		{pkix.Name{
  2273  			CommonName: "foobar",
  2274  			ExtraNames: []pkix.AttributeTypeAndValue{
  2275  				{Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "#abcdef"}},
  2276  		}, "2.3.4.5=\\#abcdef,CN=foobar"},
  2277  		// Printable string with an embedded RFC 2253 escapable character.
  2278  		{pkix.Name{
  2279  			CommonName: "foobar",
  2280  			ExtraNames: []pkix.AttributeTypeAndValue{
  2281  				{Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "abcdef,GHI"}},
  2282  		}, "2.3.4.5=abcdef\\,GHI,CN=foobar"},
  2283  		// Printable string with leading and trailing space gets escaped.
  2284  		{pkix.Name{
  2285  			CommonName: "foobar",
  2286  			ExtraNames: []pkix.AttributeTypeAndValue{
  2287  				{Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "   abcdef "}},
  2288  		}, "2.3.4.5=\\   abcdef\\ ,CN=foobar"},
  2289  	}
  2290  
  2291  	for i, test := range tests {
  2292  		if got := test.dn.String(); got != test.want {
  2293  			t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want)
  2294  		}
  2295  	}
  2296  
  2297  	if extra[0].Value != "backing array" {
  2298  		t.Errorf("the backing array of an empty ExtraNames got modified by String")
  2299  	}
  2300  }
  2301  
  2302  func TestRDNSequenceString(t *testing.T) {
  2303  	// Test some extra cases that get lost in pkix.Name conversions such as
  2304  	// multi-valued attributes.
  2305  
  2306  	var (
  2307  		oidCountry            = []int{2, 5, 4, 6}
  2308  		oidOrganization       = []int{2, 5, 4, 10}
  2309  		oidOrganizationalUnit = []int{2, 5, 4, 11}
  2310  		oidCommonName         = []int{2, 5, 4, 3}
  2311  	)
  2312  
  2313  	tests := []struct {
  2314  		seq  pkix.RDNSequence
  2315  		want string
  2316  	}{
  2317  		{
  2318  			seq: pkix.RDNSequence{
  2319  				pkix.RelativeDistinguishedNameSET{
  2320  					pkix.AttributeTypeAndValue{Type: oidCountry, Value: "US"},
  2321  				},
  2322  				pkix.RelativeDistinguishedNameSET{
  2323  					pkix.AttributeTypeAndValue{Type: oidOrganization, Value: "Widget Inc."},
  2324  				},
  2325  				pkix.RelativeDistinguishedNameSET{
  2326  					pkix.AttributeTypeAndValue{Type: oidOrganizationalUnit, Value: "Sales"},
  2327  					pkix.AttributeTypeAndValue{Type: oidCommonName, Value: "J. Smith"},
  2328  				},
  2329  			},
  2330  			want: "OU=Sales+CN=J. Smith,O=Widget Inc.,C=US",
  2331  		},
  2332  	}
  2333  
  2334  	for i, test := range tests {
  2335  		if got := test.seq.String(); got != test.want {
  2336  			t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want)
  2337  		}
  2338  	}
  2339  }
  2340  
  2341  const criticalNameConstraintWithUnknownTypePEM = `
  2342  -----BEGIN CERTIFICATE-----
  2343  MIIC/TCCAeWgAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwKDEmMCQGA1UEAxMdRW1w
  2344  dHkgbmFtZSBjb25zdHJhaW50cyBpc3N1ZXIwHhcNMTMwMjAxMDAwMDAwWhcNMjAw
  2345  NTMwMTA0ODM4WjAhMR8wHQYDVQQDExZFbXB0eSBuYW1lIGNvbnN0cmFpbnRzMIIB
  2346  IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwriElUIt3LCqmJObs+yDoWPD
  2347  F5IqgWk6moIobYjPfextZiYU6I3EfvAwoNxPDkN2WowcocUZMJbEeEq5ebBksFnx
  2348  f12gBxlIViIYwZAzu7aFvhDMyPKQI3C8CG0ZSC9ABZ1E3umdA3CEueNOmP/TChNq
  2349  Cl23+BG1Qb/PJkpAO+GfpWSVhTcV53Mf/cKvFHcjGNrxzdSoq9fyW7a6gfcGEQY0
  2350  LVkmwFWUfJ0wT8kaeLr0E0tozkIfo01KNWNzv6NcYP80QOBRDlApWu9ODmEVJHPD
  2351  blx4jzTQ3JLa+4DvBNOjVUOp+mgRmjiW0rLdrxwOxIqIOwNjweMCp/hgxX/hTQID
  2352  AQABozgwNjA0BgNVHR4BAf8EKjAooCQwIokgIACrzQAAAAAAAAAAAAAAAP////8A
  2353  AAAAAAAAAAAAAAChADANBgkqhkiG9w0BAQsFAAOCAQEAWG+/zUMHQhP8uNCtgSHy
  2354  im/vh7wminwAvWgMKxlkLBFns6nZeQqsOV1lABY7U0Zuoqa1Z5nb6L+iJa4ElREJ
  2355  Oi/erLc9uLwBdDCAR0hUTKD7a6i4ooS39DTle87cUnj0MW1CUa6Hv5SsvpYW+1Xl
  2356  eYJk/axQOOTcy4Es53dvnZsjXH0EA/QHnn7UV+JmlE3rtVxcYp6MLYPmRhTioROA
  2357  /drghicRkiu9hxdPyxkYS16M5g3Zj30jdm+k/6C6PeNtN9YmOOganCOSyFYfGhqO
  2358  ANYzpmuV+oIedAsPpIbfIzN8njYUs1zio+1IoI4o8ddM9sCbtPU8o+WoY6IsCKXV
  2359  /g==
  2360  -----END CERTIFICATE-----`
  2361  
  2362  func TestCriticalNameConstraintWithUnknownType(t *testing.T) {
  2363  	block, _ := pem.Decode([]byte(criticalNameConstraintWithUnknownTypePEM))
  2364  	cert, err := ParseCertificate(block.Bytes)
  2365  	if err != nil {
  2366  		t.Fatalf("unexpected parsing failure: %s", err)
  2367  	}
  2368  
  2369  	if l := len(cert.UnhandledCriticalExtensions); l != 1 {
  2370  		t.Fatalf("expected one unhandled critical extension, but found %d", l)
  2371  	}
  2372  }
  2373  
  2374  const badIPMaskPEM = `
  2375  -----BEGIN CERTIFICATE-----
  2376  MIICzzCCAbegAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwHTEbMBkGA1UEAxMSQmFk
  2377  IElQIG1hc2sgaXNzdWVyMB4XDTEzMDIwMTAwMDAwMFoXDTIwMDUzMDEwNDgzOFow
  2378  FjEUMBIGA1UEAxMLQmFkIElQIG1hc2swggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
  2379  ggEKAoIBAQDCuISVQi3csKqYk5uz7IOhY8MXkiqBaTqagihtiM997G1mJhTojcR+
  2380  8DCg3E8OQ3ZajByhxRkwlsR4Srl5sGSwWfF/XaAHGUhWIhjBkDO7toW+EMzI8pAj
  2381  cLwIbRlIL0AFnUTe6Z0DcIS5406Y/9MKE2oKXbf4EbVBv88mSkA74Z+lZJWFNxXn
  2382  cx/9wq8UdyMY2vHN1Kir1/JbtrqB9wYRBjQtWSbAVZR8nTBPyRp4uvQTS2jOQh+j
  2383  TUo1Y3O/o1xg/zRA4FEOUCla704OYRUkc8NuXHiPNNDcktr7gO8E06NVQ6n6aBGa
  2384  OJbSst2vHA7Eiog7A2PB4wKn+GDFf+FNAgMBAAGjIDAeMBwGA1UdHgEB/wQSMBCg
  2385  DDAKhwgBAgME//8BAKEAMA0GCSqGSIb3DQEBCwUAA4IBAQBYb7/NQwdCE/y40K2B
  2386  IfKKb++HvCaKfAC9aAwrGWQsEWezqdl5Cqw5XWUAFjtTRm6iprVnmdvov6IlrgSV
  2387  EQk6L96stz24vAF0MIBHSFRMoPtrqLiihLf0NOV7ztxSePQxbUJRroe/lKy+lhb7
  2388  VeV5gmT9rFA45NzLgSznd2+dmyNcfQQD9AeeftRX4maUTeu1XFxinowtg+ZGFOKh
  2389  E4D92uCGJxGSK72HF0/LGRhLXozmDdmPfSN2b6T/oLo942031iY46BqcI5LIVh8a
  2390  Go4A1jOma5X6gh50Cw+kht8jM3yeNhSzXOKj7Uigjijx10z2wJu09Tyj5ahjoiwI
  2391  pdX+
  2392  -----END CERTIFICATE-----`
  2393  
  2394  func TestBadIPMask(t *testing.T) {
  2395  	block, _ := pem.Decode([]byte(badIPMaskPEM))
  2396  	_, err := ParseCertificate(block.Bytes)
  2397  	if err == nil {
  2398  		t.Fatalf("unexpected success")
  2399  	}
  2400  
  2401  	const expected = "contained invalid mask"
  2402  	if !strings.Contains(err.Error(), expected) {
  2403  		t.Fatalf("expected %q in error but got: %s", expected, err)
  2404  	}
  2405  }
  2406  
  2407  const additionalGeneralSubtreePEM = `
  2408  -----BEGIN CERTIFICATE-----
  2409  MIIG4TCCBMmgAwIBAgIRALss+4rLw2Ia7tFFhxE8g5cwDQYJKoZIhvcNAQELBQAw
  2410  bjELMAkGA1UEBhMCTkwxIDAeBgNVBAoMF01pbmlzdGVyaWUgdmFuIERlZmVuc2ll
  2411  MT0wOwYDVQQDDDRNaW5pc3RlcmllIHZhbiBEZWZlbnNpZSBDZXJ0aWZpY2F0aWUg
  2412  QXV0b3JpdGVpdCAtIEcyMB4XDTEzMDMwNjEyMDM0OVoXDTEzMTEzMDEyMDM1MFow
  2413  bDELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUNlcnRpUGF0aCBMTEMxIjAgBgNVBAsT
  2414  GUNlcnRpZmljYXRpb24gQXV0aG9yaXRpZXMxITAfBgNVBAMTGENlcnRpUGF0aCBC
  2415  cmlkZ2UgQ0EgLSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANLW
  2416  4kXiRqvwBhJfN9uz12FA+P2D34MPxOt7TGXljm2plJ2CLzvaH8/ymsMdSWdJBS1M
  2417  8FmwvNL1w3A6ZuzksJjPikAu8kY3dcp3mrkk9eCPORDAwGtfsXwZysLiuEaDWpbD
  2418  dHOaHnI6qWU0N6OI+hNX58EjDpIGC1WQdho1tHOTPc5Hf5/hOpM/29v/wr7kySjs
  2419  Z+7nsvkm5rNhuJNzPsLsgzVaJ5/BVyOplZy24FKM8Y43MjR4osZm+a2e0zniqw6/
  2420  rvcjcGYabYaznZfQG1GXoyf2Vea+CCgpgUhlVafgkwEs8izl8rIpvBzXiFAgFQuG
  2421  Ituoy92PJbDs430fA/cCAwEAAaOCAnowggJ2MEUGCCsGAQUFBwEBBDkwNzA1Bggr
  2422  BgEFBQcwAoYpaHR0cDovL2NlcnRzLmNhLm1pbmRlZi5ubC9taW5kZWYtY2EtMi5w
  2423  N2MwHwYDVR0jBBgwFoAUzln9WSPz2M64Rl2HYf2/KD8StmQwDwYDVR0TAQH/BAUw
  2424  AwEB/zCB6QYDVR0gBIHhMIHeMEgGCmCEEAGHawECBQEwOjA4BggrBgEFBQcCARYs
  2425  aHR0cDovL2Nwcy5kcC5jYS5taW5kZWYubmwvbWluZGVmLWNhLWRwLWNwcy8wSAYK
  2426  YIQQAYdrAQIFAjA6MDgGCCsGAQUFBwIBFixodHRwOi8vY3BzLmRwLmNhLm1pbmRl
  2427  Zi5ubC9taW5kZWYtY2EtZHAtY3BzLzBIBgpghBABh2sBAgUDMDowOAYIKwYBBQUH
  2428  AgEWLGh0dHA6Ly9jcHMuZHAuY2EubWluZGVmLm5sL21pbmRlZi1jYS1kcC1jcHMv
  2429  MDkGA1UdHwQyMDAwLqAsoCqGKGh0dHA6Ly9jcmxzLmNhLm1pbmRlZi5ubC9taW5k
  2430  ZWYtY2EtMi5jcmwwDgYDVR0PAQH/BAQDAgEGMEYGA1UdHgEB/wQ8MDqhODA2pDEw
  2431  LzELMAkGA1UEBhMCTkwxIDAeBgNVBAoTF01pbmlzdGVyaWUgdmFuIERlZmVuc2ll
  2432  gQFjMF0GA1UdIQRWMFQwGgYKYIQQAYdrAQIFAQYMKwYBBAGBu1MBAQECMBoGCmCE
  2433  EAGHawECBQIGDCsGAQQBgbtTAQEBAjAaBgpghBABh2sBAgUDBgwrBgEEAYG7UwEB
  2434  AQIwHQYDVR0OBBYEFNDCjBM3M3ZKkag84ei3/aKc0d0UMA0GCSqGSIb3DQEBCwUA
  2435  A4ICAQAQXFn9jF90/DNFf15JhoGtta/0dNInb14PMu3PAjcdrXYCDPpQZOArTUng
  2436  5YT1WuzfmjnXiTsziT3my0r9Mxvz/btKK/lnVOMW4c2q/8sIsIPnnW5ZaRGrsANB
  2437  dNDZkzMYmeG2Pfgvd0AQSOrpE/TVgWfu/+MMRWwX9y6VbooBR7BLv7zMuVH0WqLn
  2438  6OMFth7fqsThlfMSzkE/RDSaU6n3wXAWT1SIqBITtccRjSUQUFm/q3xrb2cwcZA6
  2439  8vdS4hzNd+ttS905ay31Ks4/1Wrm1bH5RhEfRSH0VSXnc0b+z+RyBbmiwtVZqzxE
  2440  u3UQg/rAmtLDclLFEzjp8YDTIRYSLwstDbEXO/0ArdGrQm79HQ8i/3ZbP2357myW
  2441  i15qd6gMJIgGHS4b8Hc7R1K8LQ9Gm1aLKBEWVNGZlPK/cpXThpVmoEyslN2DHCrc
  2442  fbMbjNZpXlTMa+/b9z7Fa4X8dY8u/ELzZuJXJv5Rmqtg29eopFFYDCl0Nkh1XAjo
  2443  QejEoHHUvYV8TThHZr6Z6Ib8CECgTehU4QvepkgDXNoNrKRZBG0JhLjkwxh2whZq
  2444  nvWBfALC2VuNOM6C0rDY+HmhMlVt0XeqnybD9MuQALMit7Z00Cw2CIjNsBI9xBqD
  2445  xKK9CjUb7gzRUWSpB9jGHsvpEMHOzIFhufvH2Bz1XJw+Cl7khw==
  2446  -----END CERTIFICATE-----`
  2447  
  2448  func TestAdditionFieldsInGeneralSubtree(t *testing.T) {
  2449  	// Very rarely, certificates can include additional fields in the
  2450  	// GeneralSubtree structure. This tests that such certificates can be
  2451  	// parsed.
  2452  	block, _ := pem.Decode([]byte(additionalGeneralSubtreePEM))
  2453  	if _, err := ParseCertificate(block.Bytes); err != nil {
  2454  		t.Fatalf("failed to parse certificate: %s", err)
  2455  	}
  2456  }
  2457  
  2458  func TestEmptySerialNumber(t *testing.T) {
  2459  	template := Certificate{
  2460  		DNSNames: []string{"example.com"},
  2461  	}
  2462  
  2463  	for range 100 {
  2464  		derBytes, err := CreateCertificate(rand.Reader, &template, &template, &testPrivateKey.PublicKey, testPrivateKey)
  2465  		if err != nil {
  2466  			t.Fatalf("failed to create certificate: %s", err)
  2467  		}
  2468  
  2469  		cert, err := ParseCertificate(derBytes)
  2470  		if err != nil {
  2471  			t.Fatalf("failed to parse certificate: %s", err)
  2472  		}
  2473  
  2474  		if sign := cert.SerialNumber.Sign(); sign != 1 {
  2475  			t.Fatalf("generated a non positive serial, sign: %d", sign)
  2476  		}
  2477  
  2478  		b, err := asn1.Marshal(cert.SerialNumber)
  2479  		if err != nil {
  2480  			t.Fatalf("failed to marshal generated serial number: %s", err)
  2481  		}
  2482  		// subtract 2 for tag and length
  2483  		if l := len(b) - 2; l > 20 {
  2484  			t.Fatalf("generated serial number larger than 20 octets when encoded: %d", l)
  2485  		}
  2486  	}
  2487  }
  2488  
  2489  func TestEmptySubject(t *testing.T) {
  2490  	template := Certificate{
  2491  		SerialNumber: big.NewInt(1),
  2492  		DNSNames:     []string{"example.com"},
  2493  	}
  2494  
  2495  	derBytes, err := CreateCertificate(rand.Reader, &template, &template, &testPrivateKey.PublicKey, testPrivateKey)
  2496  	if err != nil {
  2497  		t.Fatalf("failed to create certificate: %s", err)
  2498  	}
  2499  
  2500  	cert, err := ParseCertificate(derBytes)
  2501  	if err != nil {
  2502  		t.Fatalf("failed to parse certificate: %s", err)
  2503  	}
  2504  
  2505  	for _, ext := range cert.Extensions {
  2506  		if ext.Id.Equal(oidExtensionSubjectAltName) {
  2507  			if !ext.Critical {
  2508  				t.Fatal("SAN extension is not critical")
  2509  			}
  2510  			return
  2511  		}
  2512  	}
  2513  
  2514  	t.Fatal("SAN extension is missing")
  2515  }
  2516  
  2517  // multipleURLsInCRLDPPEM contains two URLs in a single CRL DistributionPoint
  2518  // structure. It is taken from https://crt.sh/?id=12721534.
  2519  const multipleURLsInCRLDPPEM = `
  2520  -----BEGIN CERTIFICATE-----
  2521  MIIF4TCCBMmgAwIBAgIQc+6uFePfrahUGpXs8lhiTzANBgkqhkiG9w0BAQsFADCB
  2522  8zELMAkGA1UEBhMCRVMxOzA5BgNVBAoTMkFnZW5jaWEgQ2F0YWxhbmEgZGUgQ2Vy
  2523  dGlmaWNhY2lvIChOSUYgUS0wODAxMTc2LUkpMSgwJgYDVQQLEx9TZXJ2ZWlzIFB1
  2524  YmxpY3MgZGUgQ2VydGlmaWNhY2lvMTUwMwYDVQQLEyxWZWdldSBodHRwczovL3d3
  2525  dy5jYXRjZXJ0Lm5ldC92ZXJhcnJlbCAoYykwMzE1MDMGA1UECxMsSmVyYXJxdWlh
  2526  IEVudGl0YXRzIGRlIENlcnRpZmljYWNpbyBDYXRhbGFuZXMxDzANBgNVBAMTBkVD
  2527  LUFDQzAeFw0xNDA5MTgwODIxMDBaFw0zMDA5MTgwODIxMDBaMIGGMQswCQYDVQQG
  2528  EwJFUzEzMDEGA1UECgwqQ09OU09SQ0kgQURNSU5JU1RSQUNJTyBPQkVSVEEgREUg
  2529  Q0FUQUxVTllBMSowKAYDVQQLDCFTZXJ2ZWlzIFDDumJsaWNzIGRlIENlcnRpZmlj
  2530  YWNpw7MxFjAUBgNVBAMMDUVDLUNpdXRhZGFuaWEwggEiMA0GCSqGSIb3DQEBAQUA
  2531  A4IBDwAwggEKAoIBAQDFkHPRZPZlXTWZ5psJhbS/Gx+bxcTpGrlVQHHtIkgGz77y
  2532  TA7UZUFb2EQMncfbOhR0OkvQQn1aMvhObFJSR6nI+caf2D+h/m/InMl1MyH3S0Ak
  2533  YGZZsthnyC6KxqK2A/NApncrOreh70ULkQs45aOKsi1kR1W0zE+iFN+/P19P7AkL
  2534  Rl3bXBCVd8w+DLhcwRrkf1FCDw6cEqaFm3cGgf5cbBDMaVYAweWTxwBZAq2RbQAW
  2535  jE7mledcYghcZa4U6bUmCBPuLOnO8KMFAvH+aRzaf3ws5/ZoOVmryyLLJVZ54peZ
  2536  OwnP9EL4OuWzmXCjBifXR2IAblxs5JYj57tls45nAgMBAAGjggHaMIIB1jASBgNV
  2537  HRMBAf8ECDAGAQH/AgEAMA4GA1UdDwEB/wQEAwIBBjAdBgNVHQ4EFgQUC2hZPofI
  2538  oxUa4ECCIl+fHbLFNxUwHwYDVR0jBBgwFoAUoMOLRKo3pUW/l4Ba0fF4opvpXY0w
  2539  gdYGA1UdIASBzjCByzCByAYEVR0gADCBvzAxBggrBgEFBQcCARYlaHR0cHM6Ly93
  2540  d3cuYW9jLmNhdC9DQVRDZXJ0L1JlZ3VsYWNpbzCBiQYIKwYBBQUHAgIwfQx7QXF1
  2541  ZXN0IGNlcnRpZmljYXQgw6lzIGVtw6hzIMO6bmljYSBpIGV4Y2x1c2l2YW1lbnQg
  2542  YSBFbnRpdGF0cyBkZSBDZXJ0aWZpY2FjacOzLiBWZWdldSBodHRwczovL3d3dy5h
  2543  b2MuY2F0L0NBVENlcnQvUmVndWxhY2lvMDMGCCsGAQUFBwEBBCcwJTAjBggrBgEF
  2544  BQcwAYYXaHR0cDovL29jc3AuY2F0Y2VydC5jYXQwYgYDVR0fBFswWTBXoFWgU4Yn
  2545  aHR0cDovL2Vwc2NkLmNhdGNlcnQubmV0L2NybC9lYy1hY2MuY3JshihodHRwOi8v
  2546  ZXBzY2QyLmNhdGNlcnQubmV0L2NybC9lYy1hY2MuY3JsMA0GCSqGSIb3DQEBCwUA
  2547  A4IBAQChqFTjlAH5PyIhLjLgEs68CyNNC1+vDuZXRhy22TI83JcvGmQrZosPvVIL
  2548  PsUXx+C06Pfqmh48Q9S89X9K8w1SdJxP/rZeGEoRiKpwvQzM4ArD9QxyC8jirxex
  2549  3Umg9Ai/sXQ+1lBf6xw4HfUUr1WIp7pNHj0ZWLo106urqktcdeAFWme+/klis5fu
  2550  labCSVPuT/QpwakPrtqOhRms8vgpKiXa/eLtL9ZiA28X/Mker0zlAeTA7Z7uAnp6
  2551  oPJTlZu1Gg1ZDJueTWWsLlO+P+Wzm3MRRIbcgdRzm4mdO7ubu26SzX/aQXDhuih+
  2552  eVxXDTCfs7GUlxnjOp5j559X/N0A
  2553  -----END CERTIFICATE-----
  2554  `
  2555  
  2556  func TestMultipleURLsInCRLDP(t *testing.T) {
  2557  	block, _ := pem.Decode([]byte(multipleURLsInCRLDPPEM))
  2558  	cert, err := ParseCertificate(block.Bytes)
  2559  	if err != nil {
  2560  		t.Fatalf("failed to parse certificate: %s", err)
  2561  	}
  2562  
  2563  	want := []string{
  2564  		"http://epscd.catcert.net/crl/ec-acc.crl",
  2565  		"http://epscd2.catcert.net/crl/ec-acc.crl",
  2566  	}
  2567  	if got := cert.CRLDistributionPoints; !slices.Equal(got, want) {
  2568  		t.Errorf("CRL distribution points = %#v, want #%v", got, want)
  2569  	}
  2570  }
  2571  
  2572  const hexPKCS1TestPKCS8Key = "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"
  2573  const hexPKCS1TestECKey = "3081a40201010430bdb9839c08ee793d1157886a7a758a3c8b2a17a4df48f17ace57c72c56b4723cf21dcda21d4e1ad57ff034f19fcfd98ea00706052b81040022a16403620004feea808b5ee2429cfcce13c32160e1c960990bd050bb0fdf7222f3decd0a55008e32a6aa3c9062051c4cba92a7a3b178b24567412d43cdd2f882fa5addddd726fe3e208d2c26d733a773a597abb749714df7256ead5105fa6e7b3650de236b50"
  2574  
  2575  var pkcs1MismatchKeyTests = []struct {
  2576  	hexKey        string
  2577  	errorContains string
  2578  }{
  2579  	{hexKey: hexPKCS1TestPKCS8Key, errorContains: "use ParsePKCS8PrivateKey instead"},
  2580  	{hexKey: hexPKCS1TestECKey, errorContains: "use ParseECPrivateKey instead"},
  2581  }
  2582  
  2583  func TestPKCS1MismatchKeyFormat(t *testing.T) {
  2584  	for i, test := range pkcs1MismatchKeyTests {
  2585  		derBytes, _ := hex.DecodeString(test.hexKey)
  2586  		_, err := ParsePKCS1PrivateKey(derBytes)
  2587  		if !strings.Contains(err.Error(), test.errorContains) {
  2588  			t.Errorf("#%d: expected error containing %q, got %s", i, test.errorContains, err)
  2589  		}
  2590  	}
  2591  }
  2592  
  2593  func TestCreateRevocationList(t *testing.T) {
  2594  	ec256Priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  2595  	if err != nil {
  2596  		t.Fatalf("Failed to generate ECDSA P256 key: %s", err)
  2597  	}
  2598  	_, ed25519Priv, err := ed25519.GenerateKey(rand.Reader)
  2599  	if err != nil {
  2600  		t.Fatalf("Failed to generate Ed25519 key: %s", err)
  2601  	}
  2602  
  2603  	// Generation command:
  2604  	// openssl req -x509 -newkey rsa -keyout key.pem -out cert.pem -days 365 -nodes -subj '/C=US/ST=California/L=San Francisco/O=Internet Widgets, Inc./OU=WWW/CN=Root/emailAddress=admin@example.com' -sha256 -addext basicConstraints=CA:TRUE -addext "keyUsage = digitalSignature, keyEncipherment, dataEncipherment, cRLSign, keyCertSign" -utf8
  2605  	utf8CAStr := "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"
  2606  	utf8CABytes, _ := base64.StdEncoding.DecodeString(utf8CAStr)
  2607  	utf8CA, _ := ParseCertificate(utf8CABytes)
  2608  
  2609  	utf8KeyStr := "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"
  2610  	utf8KeyBytes, _ := base64.StdEncoding.DecodeString(utf8KeyStr)
  2611  	utf8KeyRaw, _ := ParsePKCS8PrivateKey(utf8KeyBytes)
  2612  	utf8Key := utf8KeyRaw.(crypto.Signer)
  2613  
  2614  	type test struct {
  2615  		name          string
  2616  		key           crypto.Signer
  2617  		issuer        *Certificate
  2618  		template      *RevocationList
  2619  		expectedError string
  2620  	}
  2621  	tests := []test{
  2622  		{
  2623  			name:          "nil template",
  2624  			key:           ec256Priv,
  2625  			issuer:        nil,
  2626  			template:      nil,
  2627  			expectedError: "x509: template can not be nil",
  2628  		},
  2629  		{
  2630  			name:          "nil issuer",
  2631  			key:           ec256Priv,
  2632  			issuer:        nil,
  2633  			template:      &RevocationList{},
  2634  			expectedError: "x509: issuer can not be nil",
  2635  		},
  2636  		{
  2637  			name: "issuer doesn't have crlSign key usage bit set",
  2638  			key:  ec256Priv,
  2639  			issuer: &Certificate{
  2640  				KeyUsage: KeyUsageCertSign,
  2641  			},
  2642  			template:      &RevocationList{},
  2643  			expectedError: "x509: issuer must have the crlSign key usage bit set",
  2644  		},
  2645  		{
  2646  			name: "issuer missing SubjectKeyId",
  2647  			key:  ec256Priv,
  2648  			issuer: &Certificate{
  2649  				KeyUsage: KeyUsageCRLSign,
  2650  			},
  2651  			template:      &RevocationList{},
  2652  			expectedError: "x509: issuer certificate doesn't contain a subject key identifier",
  2653  		},
  2654  		{
  2655  			name: "nextUpdate before thisUpdate",
  2656  			key:  ec256Priv,
  2657  			issuer: &Certificate{
  2658  				KeyUsage: KeyUsageCRLSign,
  2659  				Subject: pkix.Name{
  2660  					CommonName: "testing",
  2661  				},
  2662  				SubjectKeyId: []byte{1, 2, 3},
  2663  			},
  2664  			template: &RevocationList{
  2665  				ThisUpdate: time.Time{}.Add(time.Hour),
  2666  				NextUpdate: time.Time{},
  2667  			},
  2668  			expectedError: "x509: template.ThisUpdate is after template.NextUpdate",
  2669  		},
  2670  		{
  2671  			name: "nil Number",
  2672  			key:  ec256Priv,
  2673  			issuer: &Certificate{
  2674  				KeyUsage: KeyUsageCRLSign,
  2675  				Subject: pkix.Name{
  2676  					CommonName: "testing",
  2677  				},
  2678  				SubjectKeyId: []byte{1, 2, 3},
  2679  			},
  2680  			template: &RevocationList{
  2681  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2682  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2683  			},
  2684  			expectedError: "x509: template contains nil Number field",
  2685  		},
  2686  		{
  2687  			name: "long Number",
  2688  			key:  ec256Priv,
  2689  			issuer: &Certificate{
  2690  				KeyUsage: KeyUsageCRLSign,
  2691  				Subject: pkix.Name{
  2692  					CommonName: "testing",
  2693  				},
  2694  				SubjectKeyId: []byte{1, 2, 3},
  2695  			},
  2696  			template: &RevocationList{
  2697  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2698  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2699  				Number:     big.NewInt(0).SetBytes(append([]byte{1}, make([]byte, 20)...)),
  2700  			},
  2701  			expectedError: "x509: CRL number exceeds 20 octets",
  2702  		},
  2703  		{
  2704  			name: "long Number (20 bytes, MSB set)",
  2705  			key:  ec256Priv,
  2706  			issuer: &Certificate{
  2707  				KeyUsage: KeyUsageCRLSign,
  2708  				Subject: pkix.Name{
  2709  					CommonName: "testing",
  2710  				},
  2711  				SubjectKeyId: []byte{1, 2, 3},
  2712  			},
  2713  			template: &RevocationList{
  2714  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2715  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2716  				Number:     big.NewInt(0).SetBytes(append([]byte{255}, make([]byte, 19)...)),
  2717  			},
  2718  			expectedError: "x509: CRL number exceeds 20 octets",
  2719  		},
  2720  		{
  2721  			name: "invalid signature algorithm",
  2722  			key:  ec256Priv,
  2723  			issuer: &Certificate{
  2724  				KeyUsage: KeyUsageCRLSign,
  2725  				Subject: pkix.Name{
  2726  					CommonName: "testing",
  2727  				},
  2728  				SubjectKeyId: []byte{1, 2, 3},
  2729  			},
  2730  			template: &RevocationList{
  2731  				SignatureAlgorithm: SHA256WithRSA,
  2732  				RevokedCertificates: []pkix.RevokedCertificate{
  2733  					{
  2734  						SerialNumber:   big.NewInt(2),
  2735  						RevocationTime: time.Time{}.Add(time.Hour),
  2736  					},
  2737  				},
  2738  				Number:     big.NewInt(5),
  2739  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2740  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2741  			},
  2742  			expectedError: "x509: requested SignatureAlgorithm does not match private key type",
  2743  		},
  2744  		{
  2745  			name: "valid",
  2746  			key:  ec256Priv,
  2747  			issuer: &Certificate{
  2748  				KeyUsage: KeyUsageCRLSign,
  2749  				Subject: pkix.Name{
  2750  					CommonName: "testing",
  2751  				},
  2752  				SubjectKeyId: []byte{1, 2, 3},
  2753  			},
  2754  			template: &RevocationList{
  2755  				RevokedCertificateEntries: []RevocationListEntry{
  2756  					{
  2757  						SerialNumber:   big.NewInt(2),
  2758  						RevocationTime: time.Time{}.Add(time.Hour),
  2759  					},
  2760  				},
  2761  				Number:     big.NewInt(5),
  2762  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2763  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2764  			},
  2765  		},
  2766  		{
  2767  			name: "valid, reason code",
  2768  			key:  ec256Priv,
  2769  			issuer: &Certificate{
  2770  				KeyUsage: KeyUsageCRLSign,
  2771  				Subject: pkix.Name{
  2772  					CommonName: "testing",
  2773  				},
  2774  				SubjectKeyId: []byte{1, 2, 3},
  2775  			},
  2776  			template: &RevocationList{
  2777  				RevokedCertificateEntries: []RevocationListEntry{
  2778  					{
  2779  						SerialNumber:   big.NewInt(2),
  2780  						RevocationTime: time.Time{}.Add(time.Hour),
  2781  						ReasonCode:     1,
  2782  					},
  2783  				},
  2784  				Number:     big.NewInt(5),
  2785  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2786  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2787  			},
  2788  		},
  2789  		{
  2790  			name: "valid, extra entry extension",
  2791  			key:  ec256Priv,
  2792  			issuer: &Certificate{
  2793  				KeyUsage: KeyUsageCRLSign,
  2794  				Subject: pkix.Name{
  2795  					CommonName: "testing",
  2796  				},
  2797  				SubjectKeyId: []byte{1, 2, 3},
  2798  			},
  2799  			template: &RevocationList{
  2800  				RevokedCertificateEntries: []RevocationListEntry{
  2801  					{
  2802  						SerialNumber:   big.NewInt(2),
  2803  						RevocationTime: time.Time{}.Add(time.Hour),
  2804  						ExtraExtensions: []pkix.Extension{
  2805  							{
  2806  								Id:    []int{2, 5, 29, 99},
  2807  								Value: []byte{5, 0},
  2808  							},
  2809  						},
  2810  					},
  2811  				},
  2812  				Number:     big.NewInt(5),
  2813  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2814  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2815  			},
  2816  		},
  2817  		{
  2818  			name: "valid, Ed25519 key",
  2819  			key:  ed25519Priv,
  2820  			issuer: &Certificate{
  2821  				KeyUsage: KeyUsageCRLSign,
  2822  				Subject: pkix.Name{
  2823  					CommonName: "testing",
  2824  				},
  2825  				SubjectKeyId: []byte{1, 2, 3},
  2826  			},
  2827  			template: &RevocationList{
  2828  				RevokedCertificateEntries: []RevocationListEntry{
  2829  					{
  2830  						SerialNumber:   big.NewInt(2),
  2831  						RevocationTime: time.Time{}.Add(time.Hour),
  2832  					},
  2833  				},
  2834  				Number:     big.NewInt(5),
  2835  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2836  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2837  			},
  2838  		},
  2839  		{
  2840  			name: "valid, non-default signature algorithm",
  2841  			key:  ec256Priv,
  2842  			issuer: &Certificate{
  2843  				KeyUsage: KeyUsageCRLSign,
  2844  				Subject: pkix.Name{
  2845  					CommonName: "testing",
  2846  				},
  2847  				SubjectKeyId: []byte{1, 2, 3},
  2848  			},
  2849  			template: &RevocationList{
  2850  				SignatureAlgorithm: ECDSAWithSHA512,
  2851  				RevokedCertificateEntries: []RevocationListEntry{
  2852  					{
  2853  						SerialNumber:   big.NewInt(2),
  2854  						RevocationTime: time.Time{}.Add(time.Hour),
  2855  					},
  2856  				},
  2857  				Number:     big.NewInt(5),
  2858  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2859  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2860  			},
  2861  		},
  2862  		{
  2863  			name: "valid, extra extension",
  2864  			key:  ec256Priv,
  2865  			issuer: &Certificate{
  2866  				KeyUsage: KeyUsageCRLSign,
  2867  				Subject: pkix.Name{
  2868  					CommonName: "testing",
  2869  				},
  2870  				SubjectKeyId: []byte{1, 2, 3},
  2871  			},
  2872  			template: &RevocationList{
  2873  				RevokedCertificateEntries: []RevocationListEntry{
  2874  					{
  2875  						SerialNumber:   big.NewInt(2),
  2876  						RevocationTime: time.Time{}.Add(time.Hour),
  2877  					},
  2878  				},
  2879  				Number:     big.NewInt(5),
  2880  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2881  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2882  				ExtraExtensions: []pkix.Extension{
  2883  					{
  2884  						Id:    []int{2, 5, 29, 99},
  2885  						Value: []byte{5, 0},
  2886  					},
  2887  				},
  2888  			},
  2889  		},
  2890  		{
  2891  			name: "valid, deprecated entries with extension",
  2892  			key:  ec256Priv,
  2893  			issuer: &Certificate{
  2894  				KeyUsage: KeyUsageCRLSign,
  2895  				Subject: pkix.Name{
  2896  					CommonName: "testing",
  2897  				},
  2898  				SubjectKeyId: []byte{1, 2, 3},
  2899  			},
  2900  			template: &RevocationList{
  2901  				RevokedCertificates: []pkix.RevokedCertificate{
  2902  					{
  2903  						SerialNumber:   big.NewInt(2),
  2904  						RevocationTime: time.Time{}.Add(time.Hour),
  2905  						Extensions: []pkix.Extension{
  2906  							{
  2907  								Id:    []int{2, 5, 29, 99},
  2908  								Value: []byte{5, 0},
  2909  							},
  2910  						},
  2911  					},
  2912  				},
  2913  				Number:     big.NewInt(5),
  2914  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2915  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2916  			},
  2917  		},
  2918  		{
  2919  			name: "valid, empty list",
  2920  			key:  ec256Priv,
  2921  			issuer: &Certificate{
  2922  				KeyUsage: KeyUsageCRLSign,
  2923  				Subject: pkix.Name{
  2924  					CommonName: "testing",
  2925  				},
  2926  				SubjectKeyId: []byte{1, 2, 3},
  2927  			},
  2928  			template: &RevocationList{
  2929  				Number:     big.NewInt(5),
  2930  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2931  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2932  			},
  2933  		},
  2934  		{
  2935  			name:   "valid CA with utf8 Subject fields including Email, empty list",
  2936  			key:    utf8Key,
  2937  			issuer: utf8CA,
  2938  			template: &RevocationList{
  2939  				Number:     big.NewInt(5),
  2940  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2941  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2942  			},
  2943  		},
  2944  	}
  2945  
  2946  	if fips140.Version() != "v1.0.0" {
  2947  		mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44())
  2948  		if err != nil {
  2949  			t.Fatalf("Failed to generate ML-DSA-44 key: %s", err)
  2950  		}
  2951  		tests = append(tests, test{
  2952  			name: "valid, ML-DSA-44 key",
  2953  			key:  mldsaPriv,
  2954  			issuer: &Certificate{
  2955  				KeyUsage: KeyUsageCRLSign,
  2956  				Subject: pkix.Name{
  2957  					CommonName: "testing",
  2958  				},
  2959  				SubjectKeyId: []byte{1, 2, 3},
  2960  			},
  2961  			template: &RevocationList{
  2962  				RevokedCertificateEntries: []RevocationListEntry{
  2963  					{
  2964  						SerialNumber:   big.NewInt(2),
  2965  						RevocationTime: time.Time{}.Add(time.Hour),
  2966  					},
  2967  				},
  2968  				Number:     big.NewInt(5),
  2969  				ThisUpdate: time.Time{}.Add(time.Hour * 24),
  2970  				NextUpdate: time.Time{}.Add(time.Hour * 48),
  2971  			},
  2972  		})
  2973  	}
  2974  
  2975  	for _, tc := range tests {
  2976  		t.Run(tc.name, func(t *testing.T) {
  2977  			crl, err := CreateRevocationList(rand.Reader, tc.template, tc.issuer, tc.key)
  2978  			if err != nil && tc.expectedError == "" {
  2979  				t.Fatalf("CreateRevocationList failed unexpectedly: %s", err)
  2980  			} else if err != nil && tc.expectedError != err.Error() {
  2981  				t.Fatalf("CreateRevocationList failed unexpectedly, wanted: %s, got: %s", tc.expectedError, err)
  2982  			} else if err == nil && tc.expectedError != "" {
  2983  				t.Fatalf("CreateRevocationList didn't fail, expected: %s", tc.expectedError)
  2984  			}
  2985  			if tc.expectedError != "" {
  2986  				return
  2987  			}
  2988  
  2989  			parsedCRL, err := ParseRevocationList(crl)
  2990  			if err != nil {
  2991  				t.Fatalf("Failed to parse generated CRL: %s", err)
  2992  			}
  2993  
  2994  			if tc.template.SignatureAlgorithm != UnknownSignatureAlgorithm &&
  2995  				parsedCRL.SignatureAlgorithm != tc.template.SignatureAlgorithm {
  2996  				t.Fatalf("SignatureAlgorithm mismatch: got %v; want %v.", parsedCRL.SignatureAlgorithm,
  2997  					tc.template.SignatureAlgorithm)
  2998  			}
  2999  
  3000  			if len(tc.template.RevokedCertificates) > 0 {
  3001  				if !reflect.DeepEqual(parsedCRL.RevokedCertificates, tc.template.RevokedCertificates) {
  3002  					t.Fatalf("RevokedCertificates mismatch: got %v; want %v.",
  3003  						parsedCRL.RevokedCertificates, tc.template.RevokedCertificates)
  3004  				}
  3005  			} else {
  3006  				if len(parsedCRL.RevokedCertificateEntries) != len(tc.template.RevokedCertificateEntries) {
  3007  					t.Fatalf("RevokedCertificateEntries length mismatch: got %d; want %d.",
  3008  						len(parsedCRL.RevokedCertificateEntries),
  3009  						len(tc.template.RevokedCertificateEntries))
  3010  				}
  3011  				for i, rce := range parsedCRL.RevokedCertificateEntries {
  3012  					expected := tc.template.RevokedCertificateEntries[i]
  3013  					if rce.SerialNumber.Cmp(expected.SerialNumber) != 0 {
  3014  						t.Fatalf("RevocationListEntry serial mismatch: got %d; want %d.",
  3015  							rce.SerialNumber, expected.SerialNumber)
  3016  					}
  3017  					if !rce.RevocationTime.Equal(expected.RevocationTime) {
  3018  						t.Fatalf("RevocationListEntry revocation time mismatch: got %v; want %v.",
  3019  							rce.RevocationTime, expected.RevocationTime)
  3020  					}
  3021  					if rce.ReasonCode != expected.ReasonCode {
  3022  						t.Fatalf("RevocationListEntry reason code mismatch: got %d; want %d.",
  3023  							rce.ReasonCode, expected.ReasonCode)
  3024  					}
  3025  				}
  3026  			}
  3027  
  3028  			if len(parsedCRL.Extensions) != 2+len(tc.template.ExtraExtensions) {
  3029  				t.Fatalf("Generated CRL has wrong number of extensions, wanted: %d, got: %d", 2+len(tc.template.ExtraExtensions), len(parsedCRL.Extensions))
  3030  			}
  3031  			expectedAKI, err := asn1.Marshal(authKeyId{Id: tc.issuer.SubjectKeyId})
  3032  			if err != nil {
  3033  				t.Fatalf("asn1.Marshal failed: %s", err)
  3034  			}
  3035  			akiExt := pkix.Extension{
  3036  				Id:    oidExtensionAuthorityKeyId,
  3037  				Value: expectedAKI,
  3038  			}
  3039  			if !reflect.DeepEqual(parsedCRL.Extensions[0], akiExt) {
  3040  				t.Fatalf("Unexpected first extension: got %v, want %v",
  3041  					parsedCRL.Extensions[0], akiExt)
  3042  			}
  3043  			expectedNum, err := asn1.Marshal(tc.template.Number)
  3044  			if err != nil {
  3045  				t.Fatalf("asn1.Marshal failed: %s", err)
  3046  			}
  3047  			crlExt := pkix.Extension{
  3048  				Id:    oidExtensionCRLNumber,
  3049  				Value: expectedNum,
  3050  			}
  3051  			if !reflect.DeepEqual(parsedCRL.Extensions[1], crlExt) {
  3052  				t.Fatalf("Unexpected second extension: got %v, want %v",
  3053  					parsedCRL.Extensions[1], crlExt)
  3054  			}
  3055  
  3056  			// With Go 1.19's updated RevocationList, we can now directly compare
  3057  			// the RawSubject of the certificate to RawIssuer on the parsed CRL.
  3058  			// However, this doesn't work with our hacked issuers above (that
  3059  			// aren't parsed from a proper DER bundle but are instead manually
  3060  			// constructed). Prefer RawSubject when it is set.
  3061  			if len(tc.issuer.RawSubject) > 0 {
  3062  				issuerSubj, err := subjectBytes(tc.issuer)
  3063  				if err != nil {
  3064  					t.Fatalf("failed to get issuer subject: %s", err)
  3065  				}
  3066  				if !bytes.Equal(issuerSubj, parsedCRL.RawIssuer) {
  3067  					t.Fatalf("Unexpected issuer subject; wanted: %v, got: %v", hex.EncodeToString(issuerSubj), hex.EncodeToString(parsedCRL.RawIssuer))
  3068  				}
  3069  			} else {
  3070  				// When we hack our custom Subject in the test cases above,
  3071  				// we don't set the additional fields (such as Names) in the
  3072  				// hacked issuer. Round-trip a parsing of pkix.Name so that
  3073  				// we add these missing fields for the comparison.
  3074  				issuerRDN := tc.issuer.Subject.ToRDNSequence()
  3075  				var caIssuer pkix.Name
  3076  				caIssuer.FillFromRDNSequence(&issuerRDN)
  3077  				if !reflect.DeepEqual(caIssuer, parsedCRL.Issuer) {
  3078  					t.Fatalf("Expected issuer.Subject, parsedCRL.Issuer to be the same; wanted: %#v, got: %#v", caIssuer, parsedCRL.Issuer)
  3079  				}
  3080  			}
  3081  
  3082  			if len(parsedCRL.Extensions[2:]) == 0 && len(tc.template.ExtraExtensions) == 0 {
  3083  				// If we don't have anything to check return early so we don't
  3084  				// hit a [] != nil false positive below.
  3085  				return
  3086  			}
  3087  			if !reflect.DeepEqual(parsedCRL.Extensions[2:], tc.template.ExtraExtensions) {
  3088  				t.Fatalf("Extensions mismatch: got %v; want %v.",
  3089  					parsedCRL.Extensions[2:], tc.template.ExtraExtensions)
  3090  			}
  3091  
  3092  			if tc.template.Number != nil && parsedCRL.Number == nil {
  3093  				t.Fatalf("Generated CRL missing Number: got nil, want %s",
  3094  					tc.template.Number.String())
  3095  			}
  3096  			if tc.template.Number != nil && tc.template.Number.Cmp(parsedCRL.Number) != 0 {
  3097  				t.Fatalf("Generated CRL has wrong Number: got %s, want %s",
  3098  					parsedCRL.Number.String(), tc.template.Number.String())
  3099  			}
  3100  			if !bytes.Equal(parsedCRL.AuthorityKeyId, tc.issuer.SubjectKeyId) {
  3101  				t.Fatalf("Generated CRL has wrong AuthorityKeyId: got %x, want %x",
  3102  					parsedCRL.AuthorityKeyId, tc.issuer.SubjectKeyId)
  3103  			}
  3104  		})
  3105  	}
  3106  }
  3107  
  3108  func TestRSAPSAParameters(t *testing.T) {
  3109  	generateParams := func(hashFunc crypto.Hash) []byte {
  3110  		var hashOID asn1.ObjectIdentifier
  3111  
  3112  		switch hashFunc {
  3113  		case crypto.SHA256:
  3114  			hashOID = oidSHA256
  3115  		case crypto.SHA384:
  3116  			hashOID = oidSHA384
  3117  		case crypto.SHA512:
  3118  			hashOID = oidSHA512
  3119  		}
  3120  
  3121  		params := pssParameters{
  3122  			Hash: pkix.AlgorithmIdentifier{
  3123  				Algorithm:  hashOID,
  3124  				Parameters: asn1.NullRawValue,
  3125  			},
  3126  			MGF: pkix.AlgorithmIdentifier{
  3127  				Algorithm: oidMGF1,
  3128  			},
  3129  			SaltLength:   hashFunc.Size(),
  3130  			TrailerField: 1,
  3131  		}
  3132  
  3133  		mgf1Params := pkix.AlgorithmIdentifier{
  3134  			Algorithm:  hashOID,
  3135  			Parameters: asn1.NullRawValue,
  3136  		}
  3137  
  3138  		var err error
  3139  		params.MGF.Parameters.FullBytes, err = asn1.Marshal(mgf1Params)
  3140  		if err != nil {
  3141  			t.Fatalf("failed to marshal MGF parameters: %s", err)
  3142  		}
  3143  
  3144  		serialized, err := asn1.Marshal(params)
  3145  		if err != nil {
  3146  			t.Fatalf("failed to marshal parameters: %s", err)
  3147  		}
  3148  
  3149  		return serialized
  3150  	}
  3151  
  3152  	for _, detail := range signatureAlgorithmDetails {
  3153  		if !detail.isRSAPSS {
  3154  			continue
  3155  		}
  3156  		generated := generateParams(detail.hash)
  3157  		if !bytes.Equal(detail.params.FullBytes, generated) {
  3158  			t.Errorf("hardcoded parameters for %s didn't match generated parameters: got (generated) %x, wanted (hardcoded) %x", detail.hash, generated, detail.params.FullBytes)
  3159  		}
  3160  	}
  3161  }
  3162  
  3163  func TestUnknownExtKey(t *testing.T) {
  3164  	const errorContains = "unknown extended key usage"
  3165  
  3166  	template := &Certificate{
  3167  		SerialNumber: big.NewInt(10),
  3168  		DNSNames:     []string{"foo"},
  3169  		ExtKeyUsage:  []ExtKeyUsage{ExtKeyUsage(-1)},
  3170  	}
  3171  
  3172  	_, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), testPrivateKey)
  3173  	if !strings.Contains(err.Error(), errorContains) {
  3174  		t.Errorf("expected error containing %q, got %s", errorContains, err)
  3175  	}
  3176  }
  3177  
  3178  func TestIA5SANEnforcement(t *testing.T) {
  3179  	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  3180  	if err != nil {
  3181  		t.Fatalf("ecdsa.GenerateKey failed: %s", err)
  3182  	}
  3183  
  3184  	testURL, err := url.Parse("https://example.com/")
  3185  	if err != nil {
  3186  		t.Fatalf("url.Parse failed: %s", err)
  3187  	}
  3188  	testURL.RawQuery = "∞"
  3189  
  3190  	marshalTests := []struct {
  3191  		name          string
  3192  		template      *Certificate
  3193  		expectedError string
  3194  	}{
  3195  		{
  3196  			name: "marshal: unicode dNSName",
  3197  			template: &Certificate{
  3198  				SerialNumber: big.NewInt(0),
  3199  				DNSNames:     []string{"∞"},
  3200  			},
  3201  			expectedError: "x509: \"∞\" cannot be encoded as an IA5String",
  3202  		},
  3203  		{
  3204  			name: "marshal: unicode rfc822Name",
  3205  			template: &Certificate{
  3206  				SerialNumber:   big.NewInt(0),
  3207  				EmailAddresses: []string{"∞"},
  3208  			},
  3209  			expectedError: "x509: \"∞\" cannot be encoded as an IA5String",
  3210  		},
  3211  		{
  3212  			name: "marshal: unicode uniformResourceIdentifier",
  3213  			template: &Certificate{
  3214  				SerialNumber: big.NewInt(0),
  3215  				URIs:         []*url.URL{testURL},
  3216  			},
  3217  			expectedError: "x509: \"https://example.com/?∞\" cannot be encoded as an IA5String",
  3218  		},
  3219  	}
  3220  
  3221  	for _, tc := range marshalTests {
  3222  		t.Run(tc.name, func(t *testing.T) {
  3223  			_, err := CreateCertificate(rand.Reader, tc.template, tc.template, k.Public(), k)
  3224  			if err == nil {
  3225  				t.Errorf("expected CreateCertificate to fail with template: %v", tc.template)
  3226  			} else if err.Error() != tc.expectedError {
  3227  				t.Errorf("unexpected error: got %q, want %q", err.Error(), tc.expectedError)
  3228  			}
  3229  		})
  3230  	}
  3231  
  3232  	unmarshalTests := []struct {
  3233  		name          string
  3234  		cert          string
  3235  		expectedError string
  3236  	}{
  3237  		{
  3238  			name:          "unmarshal: unicode dNSName",
  3239  			cert:          "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",
  3240  			expectedError: "x509: SAN dNSName is malformed",
  3241  		},
  3242  		{
  3243  			name:          "unmarshal: unicode rfc822Name",
  3244  			cert:          "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",
  3245  			expectedError: "x509: SAN rfc822Name is malformed",
  3246  		},
  3247  		{
  3248  			name:          "unmarshal: unicode uniformResourceIdentifier",
  3249  			cert:          "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",
  3250  			expectedError: "x509: SAN uniformResourceIdentifier is malformed",
  3251  		},
  3252  	}
  3253  
  3254  	for _, tc := range unmarshalTests {
  3255  		der, err := hex.DecodeString(tc.cert)
  3256  		if err != nil {
  3257  			t.Fatalf("failed to decode test cert: %s", err)
  3258  		}
  3259  		_, err = ParseCertificate(der)
  3260  		if err == nil {
  3261  			t.Error("expected CreateCertificate to fail")
  3262  		} else if err.Error() != tc.expectedError {
  3263  			t.Errorf("unexpected error: got %q, want %q", err.Error(), tc.expectedError)
  3264  		}
  3265  	}
  3266  }
  3267  
  3268  func BenchmarkCreateCertificate(b *testing.B) {
  3269  	template := &Certificate{
  3270  		SerialNumber: big.NewInt(10),
  3271  		DNSNames:     []string{"example.com"},
  3272  	}
  3273  	tests := []struct {
  3274  		name string
  3275  		gen  func() crypto.Signer
  3276  	}{
  3277  		{
  3278  			name: "RSA 2048",
  3279  			gen: func() crypto.Signer {
  3280  				k, err := rsa.GenerateKey(rand.Reader, 2048)
  3281  				if err != nil {
  3282  					b.Fatalf("failed to generate test key: %s", err)
  3283  				}
  3284  				return k
  3285  			},
  3286  		},
  3287  		{
  3288  			name: "ECDSA P256",
  3289  			gen: func() crypto.Signer {
  3290  				k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  3291  				if err != nil {
  3292  					b.Fatalf("failed to generate test key: %s", err)
  3293  				}
  3294  				return k
  3295  			},
  3296  		},
  3297  	}
  3298  
  3299  	for _, tc := range tests {
  3300  		k := tc.gen()
  3301  		b.ResetTimer()
  3302  		b.Run(tc.name, func(b *testing.B) {
  3303  			for i := 0; i < b.N; i++ {
  3304  				_, err := CreateCertificate(rand.Reader, template, template, k.Public(), k)
  3305  				if err != nil {
  3306  					b.Fatalf("failed to create certificate: %s", err)
  3307  				}
  3308  			}
  3309  		})
  3310  	}
  3311  }
  3312  
  3313  type brokenSigner struct {
  3314  	pub crypto.PublicKey
  3315  }
  3316  
  3317  func (bs *brokenSigner) Public() crypto.PublicKey {
  3318  	return bs.pub
  3319  }
  3320  
  3321  func (bs *brokenSigner) Sign(_ io.Reader, _ []byte, _ crypto.SignerOpts) ([]byte, error) {
  3322  	return []byte{1, 2, 3}, nil
  3323  }
  3324  
  3325  func TestCreateCertificateBrokenSigner(t *testing.T) {
  3326  	template := &Certificate{
  3327  		SerialNumber: big.NewInt(10),
  3328  		DNSNames:     []string{"example.com"},
  3329  	}
  3330  	expectedErr := "signature returned by signer is invalid"
  3331  	_, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), &brokenSigner{testPrivateKey.Public()})
  3332  	if err == nil {
  3333  		t.Fatal("expected CreateCertificate to fail with a broken signer")
  3334  	} else if !strings.Contains(err.Error(), expectedErr) {
  3335  		t.Fatalf("CreateCertificate returned an unexpected error: got %q, want %q", err, expectedErr)
  3336  	}
  3337  }
  3338  
  3339  func TestMismatchedTemplateSignatureAlgorithm(t *testing.T) {
  3340  	rsaPriv := testPrivateKey
  3341  	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  3342  	if err != nil {
  3343  		t.Fatalf("Failed to generate ECDSA key: %s", err)
  3344  	}
  3345  	_, ed25519Priv, err := ed25519.GenerateKey(rand.Reader)
  3346  	if err != nil {
  3347  		t.Fatalf("Failed to generate Ed25519 key: %s", err)
  3348  	}
  3349  
  3350  	var mldsa44Priv, mldsa87Priv crypto.Signer
  3351  	if fips140.Version() != "v1.0.0" {
  3352  		k, err := mldsa.GenerateKey(mldsa.MLDSA44())
  3353  		if err != nil {
  3354  			t.Fatalf("Failed to generate ML-DSA-44 key: %s", err)
  3355  		}
  3356  		mldsa44Priv = k
  3357  		k, err = mldsa.GenerateKey(mldsa.MLDSA87())
  3358  		if err != nil {
  3359  			t.Fatalf("Failed to generate ML-DSA-87 key: %s", err)
  3360  		}
  3361  		mldsa87Priv = k
  3362  	}
  3363  
  3364  	const mismatchErr = "x509: requested SignatureAlgorithm does not match private key type"
  3365  	const mldsaParamsErr = "x509: requested SignatureAlgorithm does not match ML-DSA parameters"
  3366  
  3367  	type test struct {
  3368  		name     string
  3369  		key      crypto.Signer
  3370  		sigAlgo  SignatureAlgorithm
  3371  		wantErr  string
  3372  		wantAlgo SignatureAlgorithm
  3373  	}
  3374  	tests := []test{
  3375  		// Cross-key types: the requested SignatureAlgorithm's public
  3376  		// key type doesn't match the signer's key.
  3377  		{"RSA-key/ECDSA-algo", rsaPriv, ECDSAWithSHA256, mismatchErr, 0},
  3378  		{"RSA-key/Ed25519-algo", rsaPriv, PureEd25519, mismatchErr, 0},
  3379  		{"ECDSA-key/RSA-algo", ecdsaPriv, SHA256WithRSA, mismatchErr, 0},
  3380  		{"ECDSA-key/RSAPSS-algo", ecdsaPriv, SHA256WithRSAPSS, mismatchErr, 0},
  3381  		{"ECDSA-key/Ed25519-algo", ecdsaPriv, PureEd25519, mismatchErr, 0},
  3382  		{"Ed25519-key/ECDSA-algo", ed25519Priv, ECDSAWithSHA256, mismatchErr, 0},
  3383  		{"Ed25519-key/RSA-algo", ed25519Priv, SHA256WithRSA, mismatchErr, 0},
  3384  
  3385  		// PKCS#1 v1.5 vs PSS: both are valid for an RSA signer, so
  3386  		// either choice succeeds and the requested algorithm is honored.
  3387  		{"RSA-key/PKCS1v15-algo", rsaPriv, SHA256WithRSA, "", SHA256WithRSA},
  3388  		{"RSA-key/PSS-algo", rsaPriv, SHA256WithRSAPSS, "", SHA256WithRSAPSS},
  3389  	}
  3390  
  3391  	if mldsa44Priv != nil {
  3392  		tests = append(tests,
  3393  			test{"MLDSA-key/ECDSA-algo", mldsa44Priv, ECDSAWithSHA256, mismatchErr, 0},
  3394  			test{"ECDSA-key/MLDSA-algo", ecdsaPriv, MLDSA44, mismatchErr, 0},
  3395  
  3396  			// ML-DSA-44 vs ML-DSA-87: same PublicKeyAlgorithm, but
  3397  			// signingParamsForKey rejects the parameter mismatch.
  3398  			test{"MLDSA44-key/MLDSA87-algo", mldsa44Priv, MLDSA87, mldsaParamsErr, 0},
  3399  			test{"MLDSA87-key/MLDSA44-algo", mldsa87Priv, MLDSA44, mldsaParamsErr, 0},
  3400  
  3401  			test{"MLDSA44-key/MLDSA44-algo", mldsa44Priv, MLDSA44, "", MLDSA44},
  3402  			test{"MLDSA87-key/MLDSA87-algo", mldsa87Priv, MLDSA87, "", MLDSA87},
  3403  		)
  3404  	}
  3405  
  3406  	check := func(t *testing.T, op string, err error, wantErr string) {
  3407  		t.Helper()
  3408  		if wantErr == "" {
  3409  			if err != nil {
  3410  				t.Errorf("%s: unexpected error: %v", op, err)
  3411  			}
  3412  			return
  3413  		}
  3414  		if err == nil {
  3415  			t.Errorf("%s: expected error containing %q, got nil", op, wantErr)
  3416  			return
  3417  		}
  3418  		if !strings.Contains(err.Error(), wantErr) {
  3419  			t.Errorf("%s: error = %q, want substring %q", op, err, wantErr)
  3420  		}
  3421  	}
  3422  
  3423  	for _, tc := range tests {
  3424  		t.Run(tc.name, func(t *testing.T) {
  3425  			certTmpl := &Certificate{
  3426  				SerialNumber:       big.NewInt(1),
  3427  				Subject:            pkix.Name{CommonName: "test"},
  3428  				SignatureAlgorithm: tc.sigAlgo,
  3429  			}
  3430  			certDER, err := CreateCertificate(rand.Reader, certTmpl, certTmpl, tc.key.Public(), tc.key)
  3431  			check(t, "CreateCertificate", err, tc.wantErr)
  3432  			if tc.wantErr == "" && err == nil {
  3433  				cert, err := ParseCertificate(certDER)
  3434  				if err != nil {
  3435  					t.Fatalf("ParseCertificate: %v", err)
  3436  				}
  3437  				if cert.SignatureAlgorithm != tc.wantAlgo {
  3438  					t.Errorf("Certificate.SignatureAlgorithm = %v, want %v", cert.SignatureAlgorithm, tc.wantAlgo)
  3439  				}
  3440  			}
  3441  
  3442  			csrTmpl := &CertificateRequest{
  3443  				Subject:            pkix.Name{CommonName: "test"},
  3444  				SignatureAlgorithm: tc.sigAlgo,
  3445  			}
  3446  			csrDER, err := CreateCertificateRequest(rand.Reader, csrTmpl, tc.key)
  3447  			check(t, "CreateCertificateRequest", err, tc.wantErr)
  3448  			if tc.wantErr == "" && err == nil {
  3449  				csr, err := ParseCertificateRequest(csrDER)
  3450  				if err != nil {
  3451  					t.Fatalf("ParseCertificateRequest: %v", err)
  3452  				}
  3453  				if csr.SignatureAlgorithm != tc.wantAlgo {
  3454  					t.Errorf("CertificateRequest.SignatureAlgorithm = %v, want %v", csr.SignatureAlgorithm, tc.wantAlgo)
  3455  				}
  3456  			}
  3457  
  3458  			crlIssuer := &Certificate{
  3459  				KeyUsage:     KeyUsageCRLSign,
  3460  				Subject:      pkix.Name{CommonName: "test"},
  3461  				SubjectKeyId: []byte{1, 2, 3},
  3462  			}
  3463  			crlTmpl := &RevocationList{
  3464  				SignatureAlgorithm: tc.sigAlgo,
  3465  				Number:             big.NewInt(1),
  3466  				ThisUpdate:         time.Time{}.Add(time.Hour * 24),
  3467  				NextUpdate:         time.Time{}.Add(time.Hour * 48),
  3468  			}
  3469  			crlDER, err := CreateRevocationList(rand.Reader, crlTmpl, crlIssuer, tc.key)
  3470  			check(t, "CreateRevocationList", err, tc.wantErr)
  3471  			if tc.wantErr == "" && err == nil {
  3472  				crl, err := ParseRevocationList(crlDER)
  3473  				if err != nil {
  3474  					t.Fatalf("ParseRevocationList: %v", err)
  3475  				}
  3476  				if crl.SignatureAlgorithm != tc.wantAlgo {
  3477  					t.Errorf("RevocationList.SignatureAlgorithm = %v, want %v", crl.SignatureAlgorithm, tc.wantAlgo)
  3478  				}
  3479  			}
  3480  		})
  3481  	}
  3482  }
  3483  
  3484  func TestCreateCertificateLegacy(t *testing.T) {
  3485  	sigAlg := MD5WithRSA
  3486  	template := &Certificate{
  3487  		SerialNumber:       big.NewInt(10),
  3488  		DNSNames:           []string{"example.com"},
  3489  		SignatureAlgorithm: sigAlg,
  3490  	}
  3491  	_, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), &brokenSigner{testPrivateKey.Public()})
  3492  	if err == nil {
  3493  		t.Fatal("CreateCertificate didn't fail when SignatureAlgorithm = MD5WithRSA")
  3494  	}
  3495  }
  3496  
  3497  func (s *CertPool) mustCert(t *testing.T, n int) *Certificate {
  3498  	c, err := s.lazyCerts[n].getCert()
  3499  	if err != nil {
  3500  		t.Fatalf("failed to load cert %d: %v", n, err)
  3501  	}
  3502  	return c
  3503  }
  3504  
  3505  func allCerts(t *testing.T, p *CertPool) []*Certificate {
  3506  	all := make([]*Certificate, p.len())
  3507  	for i := range all {
  3508  		all[i] = p.mustCert(t, i)
  3509  	}
  3510  	return all
  3511  }
  3512  
  3513  // certPoolEqual reports whether a and b are equal, except for the
  3514  // function pointers.
  3515  func certPoolEqual(a, b *CertPool) bool {
  3516  	if (a != nil) != (b != nil) {
  3517  		return false
  3518  	}
  3519  	if a == nil {
  3520  		return true
  3521  	}
  3522  	if !reflect.DeepEqual(a.byName, b.byName) ||
  3523  		len(a.lazyCerts) != len(b.lazyCerts) {
  3524  		return false
  3525  	}
  3526  	for i := range a.lazyCerts {
  3527  		la, lb := a.lazyCerts[i], b.lazyCerts[i]
  3528  		if !bytes.Equal(la.rawSubject, lb.rawSubject) {
  3529  			return false
  3530  		}
  3531  		ca, err := la.getCert()
  3532  		if err != nil {
  3533  			panic(err)
  3534  		}
  3535  		cb, err := la.getCert()
  3536  		if err != nil {
  3537  			panic(err)
  3538  		}
  3539  		if !ca.Equal(cb) {
  3540  			return false
  3541  		}
  3542  	}
  3543  
  3544  	return true
  3545  }
  3546  
  3547  func TestCertificateRequestRoundtripFields(t *testing.T) {
  3548  	urlA, err := url.Parse("https://example.com/_")
  3549  	if err != nil {
  3550  		t.Fatal(err)
  3551  	}
  3552  	urlB, err := url.Parse("https://example.org/_")
  3553  	if err != nil {
  3554  		t.Fatal(err)
  3555  	}
  3556  	in := &CertificateRequest{
  3557  		DNSNames:       []string{"example.com", "example.org"},
  3558  		EmailAddresses: []string{"a@example.com", "b@example.com"},
  3559  		IPAddresses:    []net.IP{net.IPv4(192, 0, 2, 0), net.IPv6loopback},
  3560  		URIs:           []*url.URL{urlA, urlB},
  3561  	}
  3562  	out := marshalAndParseCSR(t, in)
  3563  
  3564  	if !slices.Equal(in.DNSNames, out.DNSNames) {
  3565  		t.Fatalf("Unexpected DNSNames: got %v, want %v", out.DNSNames, in.DNSNames)
  3566  	}
  3567  	if !slices.Equal(in.EmailAddresses, out.EmailAddresses) {
  3568  		t.Fatalf("Unexpected EmailAddresses: got %v, want %v", out.EmailAddresses, in.EmailAddresses)
  3569  	}
  3570  	if len(in.IPAddresses) != len(out.IPAddresses) ||
  3571  		!in.IPAddresses[0].Equal(out.IPAddresses[0]) ||
  3572  		!in.IPAddresses[1].Equal(out.IPAddresses[1]) {
  3573  		t.Fatalf("Unexpected IPAddresses: got %v, want %v", out.IPAddresses, in.IPAddresses)
  3574  	}
  3575  	if !reflect.DeepEqual(in.URIs, out.URIs) {
  3576  		t.Fatalf("Unexpected URIs: got %v, want %v", out.URIs, in.URIs)
  3577  	}
  3578  }
  3579  
  3580  func BenchmarkParseCertificate(b *testing.B) {
  3581  	cases := []struct {
  3582  		name string
  3583  		pem  string
  3584  	}{
  3585  		{
  3586  			name: "ecdsa leaf",
  3587  			pem: `-----BEGIN CERTIFICATE-----
  3588  MIIINjCCBx6gAwIBAgIQHdQ6oBMoe/MJAAAAAEHzmTANBgkqhkiG9w0BAQsFADBG
  3589  MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM
  3590  QzETMBEGA1UEAxMKR1RTIENBIDFDMzAeFw0yMDEyMDgwOTExMzZaFw0yMTAzMDIw
  3591  OTExMzVaMBcxFTATBgNVBAMMDCouZ29vZ2xlLmNvbTBZMBMGByqGSM49AgEGCCqG
  3592  SM49AwEHA0IABEFYegyHh1AHRS1nar5+zYJgMACcsIQMtg0YMyK/59ml8ERIt/JF
  3593  kXM3XIvQuCJhghUawZrrAcAs8djZF1U9M4mjggYYMIIGFDAOBgNVHQ8BAf8EBAMC
  3594  B4AwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU
  3595  6SWWF36XBsmXJ6iV0EHPXUFoMbwwHwYDVR0jBBgwFoAUinR/r4XN7pXNPZzQ4kYU
  3596  83E1HScwagYIKwYBBQUHAQEEXjBcMCcGCCsGAQUFBzABhhtodHRwOi8vb2NzcC5w
  3597  a2kuZ29vZy9ndHMxYzMwMQYIKwYBBQUHMAKGJWh0dHA6Ly9wa2kuZ29vZy9yZXBv
  3598  L2NlcnRzL2d0czFjMy5kZXIwggTCBgNVHREEggS5MIIEtYIMKi5nb29nbGUuY29t
  3599  gg0qLmFuZHJvaWQuY29tghYqLmFwcGVuZ2luZS5nb29nbGUuY29tggkqLmJkbi5k
  3600  ZXaCEiouY2xvdWQuZ29vZ2xlLmNvbYIYKi5jcm93ZHNvdXJjZS5nb29nbGUuY29t
  3601  ghgqLmRhdGFjb21wdXRlLmdvb2dsZS5jb22CBiouZy5jb4IOKi5nY3AuZ3Z0Mi5j
  3602  b22CESouZ2NwY2RuLmd2dDEuY29tggoqLmdncGh0LmNugg4qLmdrZWNuYXBwcy5j
  3603  boIWKi5nb29nbGUtYW5hbHl0aWNzLmNvbYILKi5nb29nbGUuY2GCCyouZ29vZ2xl
  3604  LmNsgg4qLmdvb2dsZS5jby5pboIOKi5nb29nbGUuY28uanCCDiouZ29vZ2xlLmNv
  3605  LnVrgg8qLmdvb2dsZS5jb20uYXKCDyouZ29vZ2xlLmNvbS5hdYIPKi5nb29nbGUu
  3606  Y29tLmJygg8qLmdvb2dsZS5jb20uY2+CDyouZ29vZ2xlLmNvbS5teIIPKi5nb29n
  3607  bGUuY29tLnRygg8qLmdvb2dsZS5jb20udm6CCyouZ29vZ2xlLmRlggsqLmdvb2ds
  3608  ZS5lc4ILKi5nb29nbGUuZnKCCyouZ29vZ2xlLmh1ggsqLmdvb2dsZS5pdIILKi5n
  3609  b29nbGUubmyCCyouZ29vZ2xlLnBsggsqLmdvb2dsZS5wdIISKi5nb29nbGVhZGFw
  3610  aXMuY29tgg8qLmdvb2dsZWFwaXMuY26CESouZ29vZ2xlY25hcHBzLmNughQqLmdv
  3611  b2dsZWNvbW1lcmNlLmNvbYIRKi5nb29nbGV2aWRlby5jb22CDCouZ3N0YXRpYy5j
  3612  boINKi5nc3RhdGljLmNvbYISKi5nc3RhdGljY25hcHBzLmNuggoqLmd2dDEuY29t
  3613  ggoqLmd2dDIuY29tghQqLm1ldHJpYy5nc3RhdGljLmNvbYIMKi51cmNoaW4uY29t
  3614  ghAqLnVybC5nb29nbGUuY29tghMqLndlYXIuZ2tlY25hcHBzLmNughYqLnlvdXR1
  3615  YmUtbm9jb29raWUuY29tgg0qLnlvdXR1YmUuY29tghYqLnlvdXR1YmVlZHVjYXRp
  3616  b24uY29tghEqLnlvdXR1YmVraWRzLmNvbYIHKi55dC5iZYILKi55dGltZy5jb22C
  3617  GmFuZHJvaWQuY2xpZW50cy5nb29nbGUuY29tggthbmRyb2lkLmNvbYIbZGV2ZWxv
  3618  cGVyLmFuZHJvaWQuZ29vZ2xlLmNughxkZXZlbG9wZXJzLmFuZHJvaWQuZ29vZ2xl
  3619  LmNuggRnLmNvgghnZ3BodC5jboIMZ2tlY25hcHBzLmNuggZnb28uZ2yCFGdvb2ds
  3620  ZS1hbmFseXRpY3MuY29tggpnb29nbGUuY29tgg9nb29nbGVjbmFwcHMuY26CEmdv
  3621  b2dsZWNvbW1lcmNlLmNvbYIYc291cmNlLmFuZHJvaWQuZ29vZ2xlLmNuggp1cmNo
  3622  aW4uY29tggp3d3cuZ29vLmdsggh5b3V0dS5iZYILeW91dHViZS5jb22CFHlvdXR1
  3623  YmVlZHVjYXRpb24uY29tgg95b3V0dWJla2lkcy5jb22CBXl0LmJlMCEGA1UdIAQa
  3624  MBgwCAYGZ4EMAQIBMAwGCisGAQQB1nkCBQMwNQYDVR0fBC4wLDAqoCigJoYkaHR0
  3625  cDovL2NybC5wa2kuZ29vZy9ndHNyMS9ndHMxYzMuY3JsMBMGCisGAQQB1nkCBAMB
  3626  Af8EAgUAMA0GCSqGSIb3DQEBCwUAA4IBAQAlDQm5zY7JcPxcJ9ulfTGsWV/m6Pro
  3627  gLYmAlBUPGKy313aetT4Zjz44ZseVtUOKsXVHh4avPA9O+ta1FgkASlbkgJ05ivb
  3628  j/+MMqkrLemdMv9Svvx3CNaAq2jJ2E+8GdrA1RzMkiNthJCiRafaPnXnN6hOHGNr
  3629  GtqYfMHsvrRHW8J2IPHW0/MUHmJ/NDu/vNchxke2OEfCPLtseo3hJt8l8HbH+yE8
  3630  DFrt8YVRi1CLomEyuPJDF4og3O3ZsoXuxcPd9UPxULOCxycdolRw8Iv/Xgr082j3
  3631  svXC3HUd3apM2Yy3xJAlk/mUkzVXfdJZ+Zy1huNsUoJ+gM8rmpyGhYyx
  3632  -----END CERTIFICATE-----`,
  3633  		},
  3634  		{
  3635  			name: "rsa leaf",
  3636  			pem: `-----BEGIN CERTIFICATE-----
  3637  MIIJXjCCCEagAwIBAgIRAPYaTUsjP4iRBQAAAACHSSgwDQYJKoZIhvcNAQELBQAw
  3638  QjELMAkGA1UEBhMCVVMxHjAcBgNVBAoTFUdvb2dsZSBUcnVzdCBTZXJ2aWNlczET
  3639  MBEGA1UEAxMKR1RTIENBIDFPMTAeFw0yMTAxMjYwODQ2MzRaFw0yMTA0MjAwODQ2
  3640  MzNaMGYxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRYwFAYDVQQH
  3641  Ew1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKEwpHb29nbGUgTExDMRUwEwYDVQQDDAwq
  3642  Lmdvb2dsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC76xx0
  3643  UdZ36/41rZNPfQ/yQ05vsBLUO0d+3uMOhvDlpst+XvIsG6L+vLDgf3RiQRFlei0h
  3644  KqqLOtWLDc/y0+OmaaC+8ft1zljBYdvQlAYoZrT79Cc5pAIDq7G1OZ7cC4ahDno/
  3645  n46FHjT/UTUAMYa8cKWBaMPneMIsKvn8nMdZzHkfO2nUd6OEecn90XweMvNmx8De
  3646  6h5AlIgG3m66hkD/UCSdxn7yJHBQVdHgkfTqzv3sz2YyBQGNi288F1bn541f6khE
  3647  fYti1MvXRtkky7yLCQNUG6PtvuSU4cKaNvRklHigf5i1nVdGEuH61gAElZIklSia
  3648  OVK46UyU4DGtbdWNAgMBAAGjggYpMIIGJTAOBgNVHQ8BAf8EBAMCBaAwEwYDVR0l
  3649  BAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU8zCvllLd3jhB
  3650  k//+Wdjo40Q+T3gwHwYDVR0jBBgwFoAUmNH4bhDrz5vsYJ8YkBug630J/SswaAYI
  3651  KwYBBQUHAQEEXDBaMCsGCCsGAQUFBzABhh9odHRwOi8vb2NzcC5wa2kuZ29vZy9n
  3652  dHMxbzFjb3JlMCsGCCsGAQUFBzAChh9odHRwOi8vcGtpLmdvb2cvZ3NyMi9HVFMx
  3653  TzEuY3J0MIIE1wYDVR0RBIIEzjCCBMqCDCouZ29vZ2xlLmNvbYINKi5hbmRyb2lk
  3654  LmNvbYIWKi5hcHBlbmdpbmUuZ29vZ2xlLmNvbYIJKi5iZG4uZGV2ghIqLmNsb3Vk
  3655  Lmdvb2dsZS5jb22CGCouY3Jvd2Rzb3VyY2UuZ29vZ2xlLmNvbYIYKi5kYXRhY29t
  3656  cHV0ZS5nb29nbGUuY29tghMqLmZsYXNoLmFuZHJvaWQuY29tggYqLmcuY2+CDiou
  3657  Z2NwLmd2dDIuY29tghEqLmdjcGNkbi5ndnQxLmNvbYIKKi5nZ3BodC5jboIOKi5n
  3658  a2VjbmFwcHMuY26CFiouZ29vZ2xlLWFuYWx5dGljcy5jb22CCyouZ29vZ2xlLmNh
  3659  ggsqLmdvb2dsZS5jbIIOKi5nb29nbGUuY28uaW6CDiouZ29vZ2xlLmNvLmpwgg4q
  3660  Lmdvb2dsZS5jby51a4IPKi5nb29nbGUuY29tLmFygg8qLmdvb2dsZS5jb20uYXWC
  3661  DyouZ29vZ2xlLmNvbS5icoIPKi5nb29nbGUuY29tLmNvgg8qLmdvb2dsZS5jb20u
  3662  bXiCDyouZ29vZ2xlLmNvbS50coIPKi5nb29nbGUuY29tLnZuggsqLmdvb2dsZS5k
  3663  ZYILKi5nb29nbGUuZXOCCyouZ29vZ2xlLmZyggsqLmdvb2dsZS5odYILKi5nb29n
  3664  bGUuaXSCCyouZ29vZ2xlLm5sggsqLmdvb2dsZS5wbIILKi5nb29nbGUucHSCEiou
  3665  Z29vZ2xlYWRhcGlzLmNvbYIPKi5nb29nbGVhcGlzLmNughEqLmdvb2dsZWNuYXBw
  3666  cy5jboIUKi5nb29nbGVjb21tZXJjZS5jb22CESouZ29vZ2xldmlkZW8uY29tggwq
  3667  LmdzdGF0aWMuY26CDSouZ3N0YXRpYy5jb22CEiouZ3N0YXRpY2NuYXBwcy5jboIK
  3668  Ki5ndnQxLmNvbYIKKi5ndnQyLmNvbYIUKi5tZXRyaWMuZ3N0YXRpYy5jb22CDCou
  3669  dXJjaGluLmNvbYIQKi51cmwuZ29vZ2xlLmNvbYITKi53ZWFyLmdrZWNuYXBwcy5j
  3670  boIWKi55b3V0dWJlLW5vY29va2llLmNvbYINKi55b3V0dWJlLmNvbYIWKi55b3V0
  3671  dWJlZWR1Y2F0aW9uLmNvbYIRKi55b3V0dWJla2lkcy5jb22CByoueXQuYmWCCyou
  3672  eXRpbWcuY29tghphbmRyb2lkLmNsaWVudHMuZ29vZ2xlLmNvbYILYW5kcm9pZC5j
  3673  b22CG2RldmVsb3Blci5hbmRyb2lkLmdvb2dsZS5jboIcZGV2ZWxvcGVycy5hbmRy
  3674  b2lkLmdvb2dsZS5jboIEZy5jb4IIZ2dwaHQuY26CDGdrZWNuYXBwcy5jboIGZ29v
  3675  LmdsghRnb29nbGUtYW5hbHl0aWNzLmNvbYIKZ29vZ2xlLmNvbYIPZ29vZ2xlY25h
  3676  cHBzLmNughJnb29nbGVjb21tZXJjZS5jb22CGHNvdXJjZS5hbmRyb2lkLmdvb2ds
  3677  ZS5jboIKdXJjaGluLmNvbYIKd3d3Lmdvby5nbIIIeW91dHUuYmWCC3lvdXR1YmUu
  3678  Y29tghR5b3V0dWJlZWR1Y2F0aW9uLmNvbYIPeW91dHViZWtpZHMuY29tggV5dC5i
  3679  ZTAhBgNVHSAEGjAYMAgGBmeBDAECAjAMBgorBgEEAdZ5AgUDMDMGA1UdHwQsMCow
  3680  KKAmoCSGImh0dHA6Ly9jcmwucGtpLmdvb2cvR1RTMU8xY29yZS5jcmwwEwYKKwYB
  3681  BAHWeQIEAwEB/wQCBQAwDQYJKoZIhvcNAQELBQADggEBAHh9/ozYUGRd+W5akWlM
  3682  4WvX808TK2oUISnagbxCCFZ2trpg2oi03CJf4o4o3Je5Qzzz10s22oQY6gPHAR0B
  3683  QHzrpqAveQw9D5vd8xjgtQ/SAujPzPKNQee5511rS7/EKW9I83ccd5XhhoEyx8A1
  3684  /65RTS+2hKpJKTMkr0yHBPJV7kUW+n/KIef5YaSOA9VYK7hyH0niDpvm9EmoqvWS
  3685  U5xAFAe/Xrrq3sxTuDJPQA8alk6h/ql5Klkw6dL53csiPka/MevDqdifWkzuT/6n
  3686  YK/ePeJzPD17FA9V+N1rcuF3Wk29AZvCOSasdIkIuE82vGr3dfNrsrn9E9lWIbCr
  3687  Qc4=
  3688  -----END CERTIFICATE-----`,
  3689  		},
  3690  	}
  3691  	for _, c := range cases {
  3692  		b.Run(c.name, func(b *testing.B) {
  3693  			pemBlock, _ := pem.Decode([]byte(c.pem))
  3694  			b.ReportAllocs()
  3695  			b.ResetTimer()
  3696  			for i := 0; i < b.N; i++ {
  3697  				_, err := ParseCertificate(pemBlock.Bytes)
  3698  				if err != nil {
  3699  					b.Fatal(err)
  3700  				}
  3701  			}
  3702  		})
  3703  	}
  3704  }
  3705  
  3706  func TestRawSignatureAlgorithm(t *testing.T) {
  3707  	// checkAI verifies that raw is a DER-encoded AlgorithmIdentifier with the
  3708  	// expected OID.
  3709  	checkAI := func(t *testing.T, raw []byte, wantOID asn1.ObjectIdentifier) {
  3710  		t.Helper()
  3711  		if len(raw) == 0 {
  3712  			t.Fatal("RawSignatureAlgorithm is empty")
  3713  		}
  3714  		var ai pkix.AlgorithmIdentifier
  3715  		rest, err := asn1.Unmarshal(raw, &ai)
  3716  		if err != nil {
  3717  			t.Fatalf("failed to unmarshal RawSignatureAlgorithm: %s", err)
  3718  		}
  3719  		if len(rest) != 0 {
  3720  			t.Fatalf("trailing data after RawSignatureAlgorithm: %x", rest)
  3721  		}
  3722  		if !ai.Algorithm.Equal(wantOID) {
  3723  			t.Fatalf("unexpected OID: got %v, want %v", ai.Algorithm, wantOID)
  3724  		}
  3725  	}
  3726  
  3727  	t.Run("Certificate", func(t *testing.T) {
  3728  		p, _ := pem.Decode([]byte(pemCertificate))
  3729  		cert, err := ParseCertificate(p.Bytes)
  3730  		if err != nil {
  3731  			t.Fatalf("failed to parse certificate: %s", err)
  3732  		}
  3733  		checkAI(t, cert.RawSignatureAlgorithm, oidSignatureSHA256WithRSA)
  3734  	})
  3735  
  3736  	priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  3737  	if err != nil {
  3738  		t.Fatalf("failed to generate key: %s", err)
  3739  	}
  3740  
  3741  	t.Run("CertificateRequest", func(t *testing.T) {
  3742  		csrDER, err := CreateCertificateRequest(rand.Reader, &CertificateRequest{}, priv)
  3743  		if err != nil {
  3744  			t.Fatalf("failed to create CSR: %s", err)
  3745  		}
  3746  		csr, err := ParseCertificateRequest(csrDER)
  3747  		if err != nil {
  3748  			t.Fatalf("failed to parse CSR: %s", err)
  3749  		}
  3750  		checkAI(t, csr.RawSignatureAlgorithm, oidSignatureECDSAWithSHA256)
  3751  	})
  3752  
  3753  	t.Run("RevocationList", func(t *testing.T) {
  3754  		issuerTmpl := &Certificate{
  3755  			SerialNumber:          big.NewInt(1),
  3756  			Subject:               pkix.Name{CommonName: "issuer"},
  3757  			NotBefore:             time.Now(),
  3758  			NotAfter:              time.Now().Add(time.Hour),
  3759  			KeyUsage:              KeyUsageCRLSign,
  3760  			IsCA:                  true,
  3761  			BasicConstraintsValid: true,
  3762  		}
  3763  		issuerDER, err := CreateCertificate(rand.Reader, issuerTmpl, issuerTmpl, priv.Public(), priv)
  3764  		if err != nil {
  3765  			t.Fatalf("failed to create issuer: %s", err)
  3766  		}
  3767  		issuer, err := ParseCertificate(issuerDER)
  3768  		if err != nil {
  3769  			t.Fatalf("failed to parse issuer: %s", err)
  3770  		}
  3771  		crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{
  3772  			Number:     big.NewInt(1),
  3773  			ThisUpdate: time.Now(),
  3774  			NextUpdate: time.Now().Add(time.Hour),
  3775  		}, issuer, priv)
  3776  		if err != nil {
  3777  			t.Fatalf("failed to create CRL: %s", err)
  3778  		}
  3779  		crl, err := ParseRevocationList(crlDER)
  3780  		if err != nil {
  3781  			t.Fatalf("failed to parse CRL: %s", err)
  3782  		}
  3783  		checkAI(t, crl.RawSignatureAlgorithm, oidSignatureECDSAWithSHA256)
  3784  	})
  3785  }
  3786  
  3787  func TestParseCertificateRawEquals(t *testing.T) {
  3788  	p, _ := pem.Decode([]byte(pemCertificate))
  3789  	cert, err := ParseCertificate(p.Bytes)
  3790  	if err != nil {
  3791  		t.Fatalf("failed to parse certificate: %s", err)
  3792  	}
  3793  	if !bytes.Equal(p.Bytes, cert.Raw) {
  3794  		t.Fatalf("unexpected Certificate.Raw\ngot: %x\nwant: %x\n", cert.Raw, p.Bytes)
  3795  	}
  3796  }
  3797  
  3798  // mismatchingSigAlgIDPEM contains a certificate where the Certificate
  3799  // signatureAlgorithm and the TBSCertificate signature contain
  3800  // mismatching OIDs
  3801  const mismatchingSigAlgIDPEM = `-----BEGIN CERTIFICATE-----
  3802  MIIBBzCBrqADAgECAgEAMAoGCCqGSM49BAMCMAAwIhgPMDAwMTAxMDEwMDAwMDBa
  3803  GA8wMDAxMDEwMTAwMDAwMFowADBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOqV
  3804  EDuVXxwZgIU3+dOwv1SsMu0xuV48hf7xmK8n7sAMYgllB+96DnPqBeboJj4snYnx
  3805  0AcE0PDVQ1l4Z3YXsQWjFTATMBEGA1UdEQEB/wQHMAWCA2FzZDAKBggqhkjOPQQD
  3806  AwNIADBFAiBi1jz/T2HT5nAfrD7zsgR+68qh7Erc6Q4qlxYBOgKG4QIhAOtjIn+Q
  3807  tA+bq+55P3ntxTOVRq0nv1mwnkjwt9cQR9Fn
  3808  -----END CERTIFICATE-----`
  3809  
  3810  // mismatchingSigAlgParamPEM contains a certificate where the Certificate
  3811  // signatureAlgorithm and the TBSCertificate signature contain
  3812  // mismatching parameters
  3813  const mismatchingSigAlgParamPEM = `-----BEGIN CERTIFICATE-----
  3814  MIIBCTCBrqADAgECAgEAMAoGCCqGSM49BAMCMAAwIhgPMDAwMTAxMDEwMDAwMDBa
  3815  GA8wMDAxMDEwMTAwMDAwMFowADBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOqV
  3816  EDuVXxwZgIU3+dOwv1SsMu0xuV48hf7xmK8n7sAMYgllB+96DnPqBeboJj4snYnx
  3817  0AcE0PDVQ1l4Z3YXsQWjFTATMBEGA1UdEQEB/wQHMAWCA2FzZDAMBggqhkjOPQQD
  3818  AgUAA0gAMEUCIGLWPP9PYdPmcB+sPvOyBH7ryqHsStzpDiqXFgE6AobhAiEA62Mi
  3819  f5C0D5ur7nk/ee3FM5VGrSe/WbCeSPC31xBH0Wc=
  3820  -----END CERTIFICATE-----`
  3821  
  3822  func TestSigAlgMismatch(t *testing.T) {
  3823  	for _, certPEM := range []string{mismatchingSigAlgIDPEM, mismatchingSigAlgParamPEM} {
  3824  		b, _ := pem.Decode([]byte(certPEM))
  3825  		if b == nil {
  3826  			t.Fatalf("couldn't decode test certificate")
  3827  		}
  3828  		_, err := ParseCertificate(b.Bytes)
  3829  		if err == nil {
  3830  			t.Fatalf("expected ParseCertificate to fail")
  3831  		}
  3832  		expected := "x509: inner and outer signature algorithm identifiers don't match"
  3833  		if err.Error() != expected {
  3834  			t.Errorf("unexpected error from ParseCertificate: got %q, want %q", err.Error(), expected)
  3835  		}
  3836  	}
  3837  }
  3838  
  3839  const optionalAuthKeyIDPEM = `-----BEGIN CERTIFICATE-----
  3840  MIIFEjCCBHugAwIBAgICAQwwDQYJKoZIhvcNAQEFBQAwgbsxJDAiBgNVBAcTG1Zh
  3841  bGlDZXJ0IFZhbGlkYXRpb24gTmV0d29yazEXMBUGA1UEChMOVmFsaUNlcnQsIElu
  3842  Yy4xNTAzBgNVBAsTLFZhbGlDZXJ0IENsYXNzIDIgUG9saWN5IFZhbGlkYXRpb24g
  3843  QXV0aG9yaXR5MSEwHwYDVQQDExhodHRwOi8vd3d3LnZhbGljZXJ0LmNvbS8xIDAe
  3844  BgkqhkiG9w0BCQEWEWluZm9AdmFsaWNlcnQuY29tMB4XDTA0MDYyOTE3MzkxNloX
  3845  DTI0MDYyOTE3MzkxNlowaDELMAkGA1UEBhMCVVMxJTAjBgNVBAoTHFN0YXJmaWVs
  3846  ZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAsTKVN0YXJmaWVsZCBDbGFzcyAy
  3847  IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0A
  3848  MIIBCAKCAQEAtzLI/ulxpgSFrQwRZN/OTe/IAxiHP6Gr+zymn/DDodrU2G4rU5D7
  3849  JKQ+hPCe6F/s5SdE9SimP3ve4CrwyK9TL57KBQGTHo9mHDmnTfpatnMEJWbrd3/n
  3850  WcZKmSUUVOsmx/N/GdUwcI+vsEYq/63rKe3Xn6oEh6PU+YmlNF/bQ5GCNtlmPLG4
  3851  uYL9nDo+EMg77wZlZnqbGRg9/3FRPDAuX749d3OyXQZswyNWmiuFJpIcpwKz5D8N
  3852  rwh5grg2Peqc0zWzvGnK9cyd6P1kjReAM25eSl2ZyR6HtJ0awNVuEzUjXt+bXz3v
  3853  1vd2wuo+u3gNHEJnawTY+Nbab4vyRKABqwIBA6OCAfMwggHvMB0GA1UdDgQWBBS/
  3854  X7fRzt0fhvRbVazc1xDCDqmI5zCB0gYDVR0jBIHKMIHHoYHBpIG+MIG7MSQwIgYD
  3855  VQQHExtWYWxpQ2VydCBWYWxpZGF0aW9uIE5ldHdvcmsxFzAVBgNVBAoTDlZhbGlD
  3856  ZXJ0LCBJbmMuMTUwMwYDVQQLEyxWYWxpQ2VydCBDbGFzcyAyIFBvbGljeSBWYWxp
  3857  ZGF0aW9uIEF1dGhvcml0eTEhMB8GA1UEAxMYaHR0cDovL3d3dy52YWxpY2VydC5j
  3858  b20vMSAwHgYJKoZIhvcNAQkBFhFpbmZvQHZhbGljZXJ0LmNvbYIBATAPBgNVHRMB
  3859  Af8EBTADAQH/MDkGCCsGAQUFBwEBBC0wKzApBggrBgEFBQcwAYYdaHR0cDovL29j
  3860  c3Auc3RhcmZpZWxkdGVjaC5jb20wSgYDVR0fBEMwQTA/oD2gO4Y5aHR0cDovL2Nl
  3861  cnRpZmljYXRlcy5zdGFyZmllbGR0ZWNoLmNvbS9yZXBvc2l0b3J5L3Jvb3QuY3Js
  3862  MFEGA1UdIARKMEgwRgYEVR0gADA+MDwGCCsGAQUFBwIBFjBodHRwOi8vY2VydGlm
  3863  aWNhdGVzLnN0YXJmaWVsZHRlY2guY29tL3JlcG9zaXRvcnkwDgYDVR0PAQH/BAQD
  3864  AgEGMA0GCSqGSIb3DQEBBQUAA4GBAKVi8afCXSWlcD284ipxs33kDTcdVWptobCr
  3865  mADkhWBKIMuh8D1195TaQ39oXCUIuNJ9MxB73HZn8bjhU3zhxoNbKXuNSm8uf0So
  3866  GkVrMgfHeMpkksK0hAzc3S1fTbvdiuo43NlmouxBulVtWmQ9twPMHOKRUJ7jCUSV
  3867  FxdzPcwl
  3868  -----END CERTIFICATE-----`
  3869  
  3870  func TestAuthKeyIdOptional(t *testing.T) {
  3871  	b, _ := pem.Decode([]byte(optionalAuthKeyIDPEM))
  3872  	if b == nil {
  3873  		t.Fatalf("couldn't decode test certificate")
  3874  	}
  3875  	_, err := ParseCertificate(b.Bytes)
  3876  	if err != nil {
  3877  		t.Fatalf("ParseCertificate to failed to parse certificate with optional authority key identifier fields: %s", err)
  3878  	}
  3879  }
  3880  
  3881  const largeOIDPEM = `
  3882  Certificate:
  3883      Data:
  3884          Version: 3 (0x2)
  3885          Serial Number:
  3886              da:ba:53:19:1b:09:4b:82:b2:89:26:7d:c7:6f:a0:02
  3887          Signature Algorithm: sha256WithRSAEncryption
  3888          Issuer: O = Acme Co
  3889          Validity
  3890              Not Before: Dec 21 16:59:27 2021 GMT
  3891              Not After : Dec 21 16:59:27 2022 GMT
  3892          Subject: O = Acme Co
  3893          Subject Public Key Info:
  3894              Public Key Algorithm: rsaEncryption
  3895                  RSA Public-Key: (2048 bit)
  3896                  Modulus:
  3897                      00:bf:17:16:d8:bc:29:9c:16:e5:76:b4:93:15:78:
  3898                      ad:6e:45:c5:4a:63:46:a1:b2:76:71:65:51:9c:14:
  3899                      c4:ea:74:13:e4:34:df:2f:2c:65:11:e8:56:52:69:
  3900                      11:f9:0e:fc:77:bb:63:a8:7c:1a:c6:a1:7b:6e:6c:
  3901                      e7:18:25:25:c9:e8:fb:06:7f:a2:a9:98:fe:2a:bc:
  3902                      8a:b3:75:b6:b8:7d:b6:c9:6b:29:08:32:22:10:cb:
  3903                      8d:d6:60:c8:83:ad:f5:58:91:d6:11:e8:55:56:fb:
  3904                      8f:a3:a2:9f:48:cb:79:e4:65:4a:8c:a6:52:64:9f:
  3905                      99:38:35:d4:d5:ac:6f:cf:a0:cb:42:8c:07:eb:21:
  3906                      17:31:3a:eb:91:7b:62:43:a4:75:5f:ef:a7:2f:94:
  3907                      f8:69:0b:d4:ec:09:e6:00:c0:8c:dd:07:63:0b:e4:
  3908                      77:aa:60:18:3c:a0:e0:ae:0a:ea:0e:52:3b:b4:fa:
  3909                      6a:30:1b:50:62:21:73:53:33:01:60:a1:6b:99:58:
  3910                      00:f3:77:c6:0f:46:19:ca:c2:5d:cd:f5:e2:52:4d:
  3911                      84:94:23:d3:32:2f:ae:5f:da:43:a1:19:95:d2:17:
  3912                      dd:49:14:b4:d9:48:1c:08:13:93:8e:d5:09:43:21:
  3913                      b6:ce:52:e8:87:bb:d2:60:0d:c6:4e:bf:c5:93:6a:
  3914                      c6:bf
  3915                  Exponent: 65537 (0x10001)
  3916          X509v3 extensions:
  3917              X509v3 Key Usage: critical
  3918                  Digital Signature, Key Encipherment
  3919              X509v3 Extended Key Usage:
  3920                  TLS Web Server Authentication
  3921              X509v3 Basic Constraints: critical
  3922                  CA:FALSE
  3923              X509v3 Subject Alternative Name:
  3924                  DNS:longOID.example
  3925              X509v3 Certificate Policies:
  3926                  Policy: 1.3.6.1.4.1.311.21.8.1492336001
  3927  
  3928      Signature Algorithm: sha256WithRSAEncryption
  3929           72:77:8b:de:48:fb:6d:9a:94:b1:be:d4:90:7d:4c:e6:d3:79:
  3930           fa:fb:fc:3e:d5:3d:e9:a0:ce:28:2b:2f:94:77:3f:87:f8:9c:
  3931           9f:91:1c:f3:f6:58:91:15:6b:24:b9:ca:ae:9f:ee:ca:c8:31:
  3932           db:1a:3d:bb:6b:83:6d:bc:81:8b:a1:79:d5:3e:bb:dd:93:fe:
  3933           35:3e:b7:99:e0:d6:eb:58:0c:fd:42:73:dc:49:da:e2:b7:ae:
  3934           15:ee:e6:cc:aa:ef:91:41:9a:18:46:8d:4a:39:65:a2:85:3c:
  3935           7f:0c:41:f8:0b:9c:e8:1f:35:36:60:8d:8c:e0:8e:18:b1:06:
  3936           57:d0:4e:c4:c3:cd:8f:6f:e7:76:02:52:da:03:43:61:2b:b3:
  3937           bf:19:fd:73:0d:6a:0b:b4:b6:cb:a9:6f:70:4e:53:2a:54:07:
  3938           b3:74:fd:85:49:57:5b:23:8d:8c:6b:53:2b:09:e8:41:a5:80:
  3939           3f:69:1b:11:d1:6b:13:35:2e:f9:d6:50:15:d9:91:38:42:43:
  3940           e9:17:af:67:d9:96:a4:d1:6a:4f:cc:b4:a7:8e:48:1f:00:72:
  3941           69:de:4d:f1:73:a4:47:12:67:e9:f9:07:3e:79:75:90:42:b8:
  3942           d4:b5:fd:d1:7e:35:04:f7:00:04:cf:f1:36:be:0f:27:81:1f:
  3943           a6:ba:88:6c
  3944  -----BEGIN CERTIFICATE-----
  3945  MIIDHTCCAgWgAwIBAgIRANq6UxkbCUuCsokmfcdvoAIwDQYJKoZIhvcNAQELBQAw
  3946  EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0yMTEyMjExNjU5MjdaFw0yMjEyMjExNjU5
  3947  MjdaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
  3948  ggEKAoIBAQC/FxbYvCmcFuV2tJMVeK1uRcVKY0ahsnZxZVGcFMTqdBPkNN8vLGUR
  3949  6FZSaRH5Dvx3u2OofBrGoXtubOcYJSXJ6PsGf6KpmP4qvIqzdba4fbbJaykIMiIQ
  3950  y43WYMiDrfVYkdYR6FVW+4+jop9Iy3nkZUqMplJkn5k4NdTVrG/PoMtCjAfrIRcx
  3951  OuuRe2JDpHVf76cvlPhpC9TsCeYAwIzdB2ML5HeqYBg8oOCuCuoOUju0+mowG1Bi
  3952  IXNTMwFgoWuZWADzd8YPRhnKwl3N9eJSTYSUI9MyL65f2kOhGZXSF91JFLTZSBwI
  3953  E5OO1QlDIbbOUuiHu9JgDcZOv8WTasa/AgMBAAGjbjBsMA4GA1UdDwEB/wQEAwIF
  3954  oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBoGA1UdEQQTMBGC
  3955  D2xvbmdPSUQuZXhhbXBsZTAbBgNVHSAEFDASMBAGDisGAQQBgjcVCIXHzPsBMA0G
  3956  CSqGSIb3DQEBCwUAA4IBAQByd4veSPttmpSxvtSQfUzm03n6+/w+1T3poM4oKy+U
  3957  dz+H+JyfkRzz9liRFWskucqun+7KyDHbGj27a4NtvIGLoXnVPrvdk/41PreZ4Nbr
  3958  WAz9QnPcSdrit64V7ubMqu+RQZoYRo1KOWWihTx/DEH4C5zoHzU2YI2M4I4YsQZX
  3959  0E7Ew82Pb+d2AlLaA0NhK7O/Gf1zDWoLtLbLqW9wTlMqVAezdP2FSVdbI42Ma1Mr
  3960  CehBpYA/aRsR0WsTNS751lAV2ZE4QkPpF69n2Zak0WpPzLSnjkgfAHJp3k3xc6RH
  3961  Emfp+Qc+eXWQQrjUtf3RfjUE9wAEz/E2vg8ngR+muohs
  3962  -----END CERTIFICATE-----`
  3963  
  3964  func TestLargeOID(t *testing.T) {
  3965  	// See Issue 49678.
  3966  	b, _ := pem.Decode([]byte(largeOIDPEM))
  3967  	if b == nil {
  3968  		t.Fatalf("couldn't decode test certificate")
  3969  	}
  3970  	_, err := ParseCertificate(b.Bytes)
  3971  	if err != nil {
  3972  		t.Fatalf("ParseCertificate to failed to parse certificate with large OID: %s", err)
  3973  	}
  3974  }
  3975  
  3976  const uniqueIDPEM = `-----BEGIN CERTIFICATE-----
  3977  MIIFsDCCBJigAwIBAgIILOyC1ydafZMwDQYJKoZIhvcNAQEFBQAwgY4xgYswgYgG
  3978  A1UEAx6BgABNAGkAYwByAG8AcwBvAGYAdAAgAEYAbwByAGUAZgByAG8AbgB0ACAA
  3979  VABNAEcAIABIAFQAVABQAFMAIABJAG4AcwBwAGUAYwB0AGkAbwBuACAAQwBlAHIA
  3980  dABpAGYAaQBjAGEAdABpAG8AbgAgAEEAdQB0AGgAbwByAGkAdAB5MB4XDTE0MDEx
  3981  ODAwNDEwMFoXDTE1MTExNTA5Mzc1NlowgZYxCzAJBgNVBAYTAklEMRAwDgYDVQQI
  3982  EwdqYWthcnRhMRIwEAYDVQQHEwlJbmRvbmVzaWExHDAaBgNVBAoTE3N0aG9ub3Jl
  3983  aG90ZWxyZXNvcnQxHDAaBgNVBAsTE3N0aG9ub3JlaG90ZWxyZXNvcnQxJTAjBgNV
  3984  BAMTHG1haWwuc3Rob25vcmVob3RlbHJlc29ydC5jb20wggEiMA0GCSqGSIb3DQEB
  3985  AQUAA4IBDwAwggEKAoIBAQCvuu0qpI+Ko2X84Twkf84cRD/rgp6vpgc5Ebejx/D4
  3986  PEVON5edZkazrMGocK/oQqIlRxx/lefponN/chlGcllcVVPWTuFjs8k+Aat6T1qp
  3987  4iXxZekAqX+U4XZMIGJD3PckPL6G2RQSlF7/LhGCsRNRdKpMWSTbou2Ma39g52Kf
  3988  gsl3SK/GwLiWpxpcSkNQD1hugguEIsQYLxbeNwpcheXZtxbBGguPzQ7rH8c5vuKU
  3989  BkMOzaiNKLzHbBdFSrua8KWwCJg76Vdq/q36O9GlW6YgG3i+A4pCJjXWerI1lWwX
  3990  Ktk5V+SvUHGey1bkDuZKJ6myMk2pGrrPWCT7jP7WskChAgMBAAGBCQBCr1dgEleo
  3991  cKOCAfswggH3MIHDBgNVHREEgbswgbiCHG1haWwuc3Rob25vcmVob3RlbHJlc29y
  3992  dC5jb22CIGFzaGNoc3ZyLnN0aG9ub3JlaG90ZWxyZXNvcnQuY29tgiRBdXRvRGlz
  3993  Y292ZXIuc3Rob25vcmVob3RlbHJlc29ydC5jb22CHEF1dG9EaXNjb3Zlci5ob3Rl
  3994  bHJlc29ydC5jb22CCEFTSENIU1ZSghdzdGhvbm9yZWhvdGVscmVzb3J0LmNvbYIP
  3995  aG90ZWxyZXNvcnQuY29tMCEGCSsGAQQBgjcUAgQUHhIAVwBlAGIAUwBlAHIAdgBl
  3996  AHIwHQYDVR0OBBYEFMAC3UR4FwAdGekbhMgnd6lMejtbMAsGA1UdDwQEAwIFoDAT
  3997  BgNVHSUEDDAKBggrBgEFBQcDATAJBgNVHRMEAjAAMIG/BgNVHQEEgbcwgbSAFGfF
  3998  6xihk+gJJ5TfwvtWe1UFnHLQoYGRMIGOMYGLMIGIBgNVBAMegYAATQBpAGMAcgBv
  3999  AHMAbwBmAHQAIABGAG8AcgBlAGYAcgBvAG4AdAAgAFQATQBHACAASABUAFQAUABT
  4000  ACAASQBuAHMAcABlAGMAdABpAG8AbgAgAEMAZQByAHQAaQBmAGkAYwBhAHQAaQBv
  4001  AG4AIABBAHUAdABoAG8AcgBpAHQAeYIIcKhXEmBXr0IwDQYJKoZIhvcNAQEFBQAD
  4002  ggEBABlSxyCMr3+ANr+WmPSjyN5YCJBgnS0IFCwJAzIYP87bcTye/U8eQ2+E6PqG
  4003  Q7Huj7nfHEw9qnGo+HNyPp1ad3KORzXDb54c6xEoi+DeuPzYHPbn4c3hlH49I0aQ
  4004  eWW2w4RslSWpLvO6Y7Lboyz2/Thk/s2kd4RHxkkWpH2ltPqJuYYg3X6oM5+gIFHJ
  4005  WGnh+ojZ5clKvS5yXh3Wkj78M6sb32KfcBk0Hx6NkCYPt60ODYmWtvqwtw6r73u5
  4006  TnTYWRNvo2svX69TriL+CkHY9O1Hkwf2It5zHl3gNiKTJVaak8AuEz/CKWZneovt
  4007  yYLwhUhg3PX5Co1VKYE+9TxloiE=
  4008  -----END CERTIFICATE-----`
  4009  
  4010  func TestParseUniqueID(t *testing.T) {
  4011  	b, _ := pem.Decode([]byte(uniqueIDPEM))
  4012  	if b == nil {
  4013  		t.Fatalf("couldn't decode test certificate")
  4014  	}
  4015  	cert, err := ParseCertificate(b.Bytes)
  4016  	if err != nil {
  4017  		t.Fatalf("ParseCertificate to failed to parse certificate with unique identifier id: %s", err)
  4018  	}
  4019  	if len(cert.Extensions) != 7 {
  4020  		t.Fatalf("unexpected number of extensions (probably because the extension section was not parsed): got %d, want 7", len(cert.Extensions))
  4021  	}
  4022  }
  4023  
  4024  func TestDisableSHA1ForCertOnly(t *testing.T) {
  4025  	t.Setenv("GODEBUG", "")
  4026  
  4027  	tmpl := &Certificate{
  4028  		SerialNumber:          big.NewInt(1),
  4029  		NotBefore:             time.Now().Add(-time.Hour),
  4030  		NotAfter:              time.Now().Add(time.Hour),
  4031  		SignatureAlgorithm:    SHA1WithRSA,
  4032  		BasicConstraintsValid: true,
  4033  		IsCA:                  true,
  4034  		KeyUsage:              KeyUsageCertSign | KeyUsageCRLSign,
  4035  	}
  4036  	certDER, err := CreateCertificate(rand.Reader, tmpl, tmpl, rsaPrivateKey.Public(), rsaPrivateKey)
  4037  	if err != nil {
  4038  		t.Fatalf("failed to generate test cert: %s", err)
  4039  	}
  4040  	cert, err := ParseCertificate(certDER)
  4041  	if err != nil {
  4042  		t.Fatalf("failed to parse test cert: %s", err)
  4043  	}
  4044  
  4045  	err = cert.CheckSignatureFrom(cert)
  4046  	if err == nil {
  4047  		t.Error("expected CheckSignatureFrom to fail")
  4048  	} else if _, ok := err.(InsecureAlgorithmError); !ok {
  4049  		t.Errorf("expected InsecureAlgorithmError error, got %T", err)
  4050  	}
  4051  
  4052  	crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{
  4053  		SignatureAlgorithm: SHA1WithRSA,
  4054  		Number:             big.NewInt(1),
  4055  		ThisUpdate:         time.Now().Add(-time.Hour),
  4056  		NextUpdate:         time.Now().Add(time.Hour),
  4057  	}, cert, rsaPrivateKey)
  4058  	if err != nil {
  4059  		t.Fatalf("failed to generate test CRL: %s", err)
  4060  	}
  4061  	crl, err := ParseRevocationList(crlDER)
  4062  	if err != nil {
  4063  		t.Fatalf("failed to parse test CRL: %s", err)
  4064  	}
  4065  
  4066  	if err = crl.CheckSignatureFrom(cert); err != nil {
  4067  		t.Errorf("unexpected error: %s", err)
  4068  	}
  4069  
  4070  	// This is an unrelated OCSP response, which will fail signature verification
  4071  	// but shouldn't return an InsecureAlgorithmError, since SHA1 should be allowed
  4072  	// for OCSP.
  4073  	ocspTBSHex := "30819fa2160414884451ff502a695e2d88f421bad90cf2cecbea7c180f32303133303631383037323434335a30743072304a300906052b0e03021a0500041448b60d38238df8456e4ee5843ea394111802979f0414884451ff502a695e2d88f421bad90cf2cecbea7c021100f78b13b946fc9635d8ab49de9d2148218000180f32303133303631383037323434335aa011180f32303133303632323037323434335a"
  4074  	ocspTBS, err := hex.DecodeString(ocspTBSHex)
  4075  	if err != nil {
  4076  		t.Fatalf("failed to decode OCSP response TBS hex: %s", err)
  4077  	}
  4078  
  4079  	err = cert.CheckSignature(SHA1WithRSA, ocspTBS, nil)
  4080  	if err != rsa.ErrVerification {
  4081  		t.Errorf("unexpected error: %s", err)
  4082  	}
  4083  }
  4084  
  4085  func TestParseRevocationList(t *testing.T) {
  4086  	derBytes := fromBase64(derCRLBase64)
  4087  	certList, err := ParseRevocationList(derBytes)
  4088  	if err != nil {
  4089  		t.Errorf("error parsing: %s", err)
  4090  		return
  4091  	}
  4092  	numCerts := len(certList.RevokedCertificateEntries)
  4093  	numCertsDeprecated := len(certList.RevokedCertificateEntries)
  4094  	expected := 88
  4095  	if numCerts != expected || numCertsDeprecated != expected {
  4096  		t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
  4097  	}
  4098  }
  4099  
  4100  func TestRevocationListCheckSignatureFrom(t *testing.T) {
  4101  	goodKey, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
  4102  	if err != nil {
  4103  		t.Fatalf("failed to generate test key: %s", err)
  4104  	}
  4105  	badKey, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
  4106  	if err != nil {
  4107  		t.Fatalf("failed to generate test key: %s", err)
  4108  	}
  4109  	tests := []struct {
  4110  		name   string
  4111  		issuer *Certificate
  4112  		err    string
  4113  	}{
  4114  		{
  4115  			name: "valid",
  4116  			issuer: &Certificate{
  4117  				Version:               3,
  4118  				BasicConstraintsValid: true,
  4119  				IsCA:                  true,
  4120  				PublicKeyAlgorithm:    ECDSA,
  4121  				PublicKey:             goodKey.Public(),
  4122  			},
  4123  		},
  4124  		{
  4125  			name: "valid, key usage set",
  4126  			issuer: &Certificate{
  4127  				Version:               3,
  4128  				BasicConstraintsValid: true,
  4129  				IsCA:                  true,
  4130  				PublicKeyAlgorithm:    ECDSA,
  4131  				PublicKey:             goodKey.Public(),
  4132  				KeyUsage:              KeyUsageCRLSign,
  4133  			},
  4134  		},
  4135  		{
  4136  			name: "invalid issuer, wrong key usage",
  4137  			issuer: &Certificate{
  4138  				Version:               3,
  4139  				BasicConstraintsValid: true,
  4140  				IsCA:                  true,
  4141  				PublicKeyAlgorithm:    ECDSA,
  4142  				PublicKey:             goodKey.Public(),
  4143  				KeyUsage:              KeyUsageCertSign,
  4144  			},
  4145  			err: "x509: invalid signature: parent certificate cannot sign this kind of certificate",
  4146  		},
  4147  		{
  4148  			name: "invalid issuer, no basic constraints/ca",
  4149  			issuer: &Certificate{
  4150  				Version:            3,
  4151  				PublicKeyAlgorithm: ECDSA,
  4152  				PublicKey:          goodKey.Public(),
  4153  			},
  4154  			err: "x509: invalid signature: parent certificate cannot sign this kind of certificate",
  4155  		},
  4156  		{
  4157  			name: "invalid issuer, unsupported public key type",
  4158  			issuer: &Certificate{
  4159  				Version:               3,
  4160  				BasicConstraintsValid: true,
  4161  				IsCA:                  true,
  4162  				PublicKeyAlgorithm:    UnknownPublicKeyAlgorithm,
  4163  				PublicKey:             goodKey.Public(),
  4164  			},
  4165  			err: "x509: cannot verify signature: algorithm unimplemented",
  4166  		},
  4167  		{
  4168  			name: "wrong key",
  4169  			issuer: &Certificate{
  4170  				Version:               3,
  4171  				BasicConstraintsValid: true,
  4172  				IsCA:                  true,
  4173  				PublicKeyAlgorithm:    ECDSA,
  4174  				PublicKey:             badKey.Public(),
  4175  			},
  4176  			err: "x509: ECDSA verification failure",
  4177  		},
  4178  	}
  4179  
  4180  	crlIssuer := &Certificate{
  4181  		BasicConstraintsValid: true,
  4182  		IsCA:                  true,
  4183  		PublicKeyAlgorithm:    ECDSA,
  4184  		PublicKey:             goodKey.Public(),
  4185  		KeyUsage:              KeyUsageCRLSign,
  4186  		SubjectKeyId:          []byte{1, 2, 3},
  4187  	}
  4188  	for _, tc := range tests {
  4189  		t.Run(tc.name, func(t *testing.T) {
  4190  			crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{Number: big.NewInt(1)}, crlIssuer, goodKey)
  4191  			if err != nil {
  4192  				t.Fatalf("failed to generate CRL: %s", err)
  4193  			}
  4194  			crl, err := ParseRevocationList(crlDER)
  4195  			if err != nil {
  4196  				t.Fatalf("failed to parse test CRL: %s", err)
  4197  			}
  4198  			err = crl.CheckSignatureFrom(tc.issuer)
  4199  			if err != nil && err.Error() != tc.err {
  4200  				t.Errorf("unexpected error: got %s, want %s", err, tc.err)
  4201  			} else if err == nil && tc.err != "" {
  4202  				t.Errorf("CheckSignatureFrom did not fail: want %s", tc.err)
  4203  			}
  4204  		})
  4205  	}
  4206  }
  4207  
  4208  func TestOmitEmptyExtensions(t *testing.T) {
  4209  	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  4210  	if err != nil {
  4211  		t.Fatal(err)
  4212  	}
  4213  	tmpl := &Certificate{
  4214  		SerialNumber: big.NewInt(1),
  4215  		Subject: pkix.Name{
  4216  			CommonName: ":)",
  4217  		},
  4218  		NotAfter:  time.Now().Add(time.Hour),
  4219  		NotBefore: time.Now().Add(-time.Hour),
  4220  	}
  4221  	der, err := CreateCertificate(rand.Reader, tmpl, tmpl, k.Public(), k)
  4222  	if err != nil {
  4223  		t.Fatal(err)
  4224  	}
  4225  
  4226  	emptyExtSeq := []byte{0xA3, 0x02, 0x30, 0x00}
  4227  	if bytes.Contains(der, emptyExtSeq) {
  4228  		t.Error("DER encoding contains the an empty extensions SEQUENCE")
  4229  	}
  4230  }
  4231  
  4232  var negativeSerialCert = `-----BEGIN CERTIFICATE-----
  4233  MIIBBTCBraADAgECAgH/MAoGCCqGSM49BAMCMA0xCzAJBgNVBAMTAjopMB4XDTIy
  4234  MDQxNDIzNTYwNFoXDTIyMDQxNTAxNTYwNFowDTELMAkGA1UEAxMCOikwWTATBgcq
  4235  hkjOPQIBBggqhkjOPQMBBwNCAAQ9ezsIsj+q17K87z/PXE/rfGRN72P/Wyn5d6oo
  4236  5M0ZbSatuntMvfKdX79CQxXAxN4oXk3Aov4jVSG12AcDI8ShMAoGCCqGSM49BAMC
  4237  A0cAMEQCIBzfBU5eMPT6m5lsR6cXaJILpAaiD9YxOl4v6dT3rzEjAiBHmjnHmAss
  4238  RqUAyJKFzqZxOlK2q4j2IYnuj5+LrLGbQA==
  4239  -----END CERTIFICATE-----`
  4240  
  4241  func TestParseNegativeSerial(t *testing.T) {
  4242  	pemBlock, _ := pem.Decode([]byte(negativeSerialCert))
  4243  	_, err := ParseCertificate(pemBlock.Bytes)
  4244  	if err == nil {
  4245  		t.Fatal("parsed certificate with negative serial")
  4246  	}
  4247  }
  4248  
  4249  func TestCreateNegativeSerial(t *testing.T) {
  4250  	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  4251  	if err != nil {
  4252  		t.Fatal(err)
  4253  	}
  4254  	tmpl := &Certificate{
  4255  		SerialNumber: big.NewInt(-1),
  4256  		Subject: pkix.Name{
  4257  			CommonName: ":)",
  4258  		},
  4259  		NotAfter:  time.Now().Add(time.Hour),
  4260  		NotBefore: time.Now().Add(-time.Hour),
  4261  	}
  4262  	expectedErr := "x509: serial number must be positive"
  4263  	_, err = CreateCertificate(rand.Reader, tmpl, tmpl, k.Public(), k)
  4264  	if err == nil || err.Error() != expectedErr {
  4265  		t.Errorf("CreateCertificate returned unexpected error: want %q, got %q", expectedErr, err)
  4266  	}
  4267  }
  4268  
  4269  const dupExtCert = `-----BEGIN CERTIFICATE-----
  4270  MIIBrjCCARegAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwR0ZXN0
  4271  MCIYDzAwMDEwMTAxMDAwMDAwWhgPMDAwMTAxMDEwMDAwMDBaMA8xDTALBgNVBAMT
  4272  BHRlc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMiFchnHms9l9NninAIz
  4273  SkY9acwl9Bk2AtmJrNCenFpiA17AcOO5q8DJYwdXi6WPKlVgcyH+ysW8XMWkq+CP
  4274  yhtF/+LMzl9odaUF2iUy3vgTC5gxGLWH5URVssx21Und2Pm2f4xyou5IVxbS9dxy
  4275  jLvV9PEY9BIb0H+zFthjhihDAgMBAAGjFjAUMAgGAioDBAIFADAIBgIqAwQCBQAw
  4276  DQYJKoZIhvcNAQELBQADgYEAlhQ4TQQKIQ8GUyzGiN/75TCtQtjhMGemxc0cNgre
  4277  d9rmm4DjydH0t7/sMCB56lQrfhJNplguzsbjFW4l245KbNKHfLiqwEGUgZjBNKur
  4278  ot6qX/skahLtt0CNOaFIge75HVKe/69OrWQGdp18dkay/KS4Glu8YMKIjOhfrUi1
  4279  NZA=
  4280  -----END CERTIFICATE-----`
  4281  
  4282  func TestDuplicateExtensionsCert(t *testing.T) {
  4283  	b, _ := pem.Decode([]byte(dupExtCert))
  4284  	if b == nil {
  4285  		t.Fatalf("couldn't decode test certificate")
  4286  	}
  4287  	_, err := ParseCertificate(b.Bytes)
  4288  	if err == nil {
  4289  		t.Fatal("ParseCertificate should fail when parsing certificate with duplicate extensions")
  4290  	}
  4291  }
  4292  
  4293  const dupExtCSR = `-----BEGIN CERTIFICATE REQUEST-----
  4294  MIIBczCB3QIBADAPMQ0wCwYDVQQDEwR0ZXN0MIGfMA0GCSqGSIb3DQEBAQUAA4GN
  4295  ADCBiQKBgQC5PbxMGVJ8aLF9lq/EvGObXTRMB7ieiZL9N+DJZg1n/ECCnZLIvYrr
  4296  ZmmDV7YZsClgxKGfjJB0RQFFyZElFM9EfHEs8NJdidDKCRdIhDXQWRyhXKevHvdm
  4297  CQNKzUeoxvdHpU/uscSkw6BgUzPyLyTx9A6ye2ix94z8Y9hGOBO2DQIDAQABoCUw
  4298  IwYJKoZIhvcNAQkOMRYwFDAIBgIqAwQCBQAwCAYCKgMEAgUAMA0GCSqGSIb3DQEB
  4299  CwUAA4GBAHROEsE7URk1knXmBnQtIHwoq663vlMcX3Hes58pUy020rWP8QkocA+X
  4300  VF18/phg3p5ILlS4fcbbP2bEeV0pePo2k00FDPsJEKCBAX2LKxbU7Vp2OuV2HM2+
  4301  VLOVx0i+/Q7fikp3hbN1JwuMTU0v2KL/IKoUcZc02+5xiYrnOIt5
  4302  -----END CERTIFICATE REQUEST-----`
  4303  
  4304  func TestDuplicateExtensionsCSR(t *testing.T) {
  4305  	b, _ := pem.Decode([]byte(dupExtCSR))
  4306  	if b == nil {
  4307  		t.Fatalf("couldn't decode test CSR")
  4308  	}
  4309  	_, err := ParseCertificateRequest(b.Bytes)
  4310  	if err == nil {
  4311  		t.Fatal("ParseCertificateRequest should fail when parsing CSR with duplicate extensions")
  4312  	}
  4313  }
  4314  
  4315  const dupAttCSR = `-----BEGIN CERTIFICATE REQUEST-----
  4316  MIIBbDCB1gIBADAPMQ0wCwYDVQQDEwR0ZXN0MIGfMA0GCSqGSIb3DQEBAQUAA4GN
  4317  ADCBiQKBgQCj5Po3PKO/JNuxr+B+WNfMIzqqYztdlv+mTQhT0jOR5rTkUvxeeHH8
  4318  YclryES2dOISjaUOTmOAr5GQIIdQl4Ql33Cp7ZR/VWcRn+qvTak0Yow+xVsDo0n4
  4319  7IcvvP6CJ7FRoYBUakVczeXLxCjLwdyK16VGJM06eRzDLykPxpPwLQIDAQABoB4w
  4320  DQYCKgMxBwwFdGVzdDEwDQYCKgMxBwwFdGVzdDIwDQYJKoZIhvcNAQELBQADgYEA
  4321  UJ8hsHxtnIeqb2ufHnQFJO+wEJhx2Uxm/BTuzHOeffuQkwATez4skZ7SlX9exgb7
  4322  6jRMRilqb4F7f8w+uDoqxRrA9zc8mwY16zPsyBhRet+ZGbj/ilgvGmtZ21qZZ/FU
  4323  0pJFJIVLM3l49Onr5uIt5+hCWKwHlgE0nGpjKLR3cMg=
  4324  -----END CERTIFICATE REQUEST-----`
  4325  
  4326  func TestDuplicateAttributesCSR(t *testing.T) {
  4327  	b, _ := pem.Decode([]byte(dupAttCSR))
  4328  	if b == nil {
  4329  		t.Fatalf("couldn't decode test CSR")
  4330  	}
  4331  	_, err := ParseCertificateRequest(b.Bytes)
  4332  	if err != nil {
  4333  		t.Fatal("ParseCertificateRequest should succeed when parsing CSR with duplicate attributes")
  4334  	}
  4335  }
  4336  
  4337  func TestCertificateOIDPoliciesGODEBUG(t *testing.T) {
  4338  	t.Setenv("GODEBUG", "x509usepolicies=0")
  4339  
  4340  	template := Certificate{
  4341  		SerialNumber:      big.NewInt(1),
  4342  		Subject:           pkix.Name{CommonName: "Cert"},
  4343  		NotBefore:         time.Unix(1000, 0),
  4344  		NotAfter:          time.Unix(100000, 0),
  4345  		PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}},
  4346  	}
  4347  
  4348  	var expectPolicyIdentifiers = []asn1.ObjectIdentifier{
  4349  		[]int{1, 2, 3},
  4350  	}
  4351  
  4352  	var expectPolicies = []OID{
  4353  		mustNewOIDFromInts([]uint64{1, 2, 3}),
  4354  	}
  4355  
  4356  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4357  	if err != nil {
  4358  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4359  	}
  4360  
  4361  	cert, err := ParseCertificate(certDER)
  4362  	if err != nil {
  4363  		t.Fatalf("ParseCertificate() unexpected error: %v", err)
  4364  	}
  4365  
  4366  	if !slices.EqualFunc(cert.PolicyIdentifiers, expectPolicyIdentifiers, slices.Equal) {
  4367  		t.Errorf("cert.PolicyIdentifiers = %v, want: %v", cert.PolicyIdentifiers, expectPolicyIdentifiers)
  4368  	}
  4369  
  4370  	if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) {
  4371  		t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies)
  4372  	}
  4373  }
  4374  
  4375  func TestCertificatePolicies(t *testing.T) {
  4376  	if x509usepolicies.Value() == "0" {
  4377  		t.Skip("test relies on default x509usepolicies GODEBUG")
  4378  	}
  4379  
  4380  	template := Certificate{
  4381  		SerialNumber:      big.NewInt(1),
  4382  		Subject:           pkix.Name{CommonName: "Cert"},
  4383  		NotBefore:         time.Unix(1000, 0),
  4384  		NotAfter:          time.Unix(100000, 0),
  4385  		PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}},
  4386  		Policies:          []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})},
  4387  	}
  4388  
  4389  	expectPolicies := []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})}
  4390  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4391  	if err != nil {
  4392  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4393  	}
  4394  
  4395  	cert, err := ParseCertificate(certDER)
  4396  	if err != nil {
  4397  		t.Fatalf("ParseCertificate() unexpected error: %v", err)
  4398  	}
  4399  
  4400  	if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) {
  4401  		t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies)
  4402  	}
  4403  
  4404  	t.Setenv("GODEBUG", "x509usepolicies=1")
  4405  	expectPolicies = []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})}
  4406  
  4407  	certDER, err = CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4408  	if err != nil {
  4409  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4410  	}
  4411  
  4412  	cert, err = ParseCertificate(certDER)
  4413  	if err != nil {
  4414  		t.Fatalf("ParseCertificate() unexpected error: %v", err)
  4415  	}
  4416  
  4417  	if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) {
  4418  		t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies)
  4419  	}
  4420  }
  4421  
  4422  func TestGob(t *testing.T) {
  4423  	// Test that gob does not reject Certificate.
  4424  	// See go.dev/issue/65633.
  4425  	cert := new(Certificate)
  4426  	err := gob.NewEncoder(io.Discard).Encode(cert)
  4427  	if err != nil {
  4428  		t.Fatal(err)
  4429  	}
  4430  }
  4431  
  4432  func TestRejectCriticalAKI(t *testing.T) {
  4433  	template := Certificate{
  4434  		SerialNumber: big.NewInt(1),
  4435  		Subject:      pkix.Name{CommonName: "Cert"},
  4436  		NotBefore:    time.Unix(1000, 0),
  4437  		NotAfter:     time.Unix(100000, 0),
  4438  		ExtraExtensions: []pkix.Extension{
  4439  			{
  4440  				Id:       asn1.ObjectIdentifier{2, 5, 29, 35},
  4441  				Critical: true,
  4442  				Value:    []byte{1, 2, 3},
  4443  			},
  4444  		},
  4445  	}
  4446  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4447  	if err != nil {
  4448  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4449  	}
  4450  	expectedErr := "x509: authority key identifier incorrectly marked critical"
  4451  	_, err = ParseCertificate(certDER)
  4452  	if err == nil || err.Error() != expectedErr {
  4453  		t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr)
  4454  	}
  4455  }
  4456  
  4457  func TestRejectCriticalAIA(t *testing.T) {
  4458  	template := Certificate{
  4459  		SerialNumber: big.NewInt(1),
  4460  		Subject:      pkix.Name{CommonName: "Cert"},
  4461  		NotBefore:    time.Unix(1000, 0),
  4462  		NotAfter:     time.Unix(100000, 0),
  4463  		ExtraExtensions: []pkix.Extension{
  4464  			{
  4465  				Id:       asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 1},
  4466  				Critical: true,
  4467  				Value:    []byte{1, 2, 3},
  4468  			},
  4469  		},
  4470  	}
  4471  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4472  	if err != nil {
  4473  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4474  	}
  4475  	expectedErr := "x509: authority info access incorrectly marked critical"
  4476  	_, err = ParseCertificate(certDER)
  4477  	if err == nil || err.Error() != expectedErr {
  4478  		t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr)
  4479  	}
  4480  }
  4481  
  4482  func TestRejectCriticalSKI(t *testing.T) {
  4483  	template := Certificate{
  4484  		SerialNumber: big.NewInt(1),
  4485  		Subject:      pkix.Name{CommonName: "Cert"},
  4486  		NotBefore:    time.Unix(1000, 0),
  4487  		NotAfter:     time.Unix(100000, 0),
  4488  		ExtraExtensions: []pkix.Extension{
  4489  			{
  4490  				Id:       asn1.ObjectIdentifier{2, 5, 29, 14},
  4491  				Critical: true,
  4492  				Value:    []byte{1, 2, 3},
  4493  			},
  4494  		},
  4495  	}
  4496  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4497  	if err != nil {
  4498  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4499  	}
  4500  	expectedErr := "x509: subject key identifier incorrectly marked critical"
  4501  	_, err = ParseCertificate(certDER)
  4502  	if err == nil || err.Error() != expectedErr {
  4503  		t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr)
  4504  	}
  4505  }
  4506  
  4507  type messageSigner struct{}
  4508  
  4509  func (ms *messageSigner) Public() crypto.PublicKey { return rsaPrivateKey.Public() }
  4510  
  4511  func (ms *messageSigner) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) {
  4512  	return nil, errors.New("unimplemented")
  4513  }
  4514  
  4515  func (ms *messageSigner) SignMessage(rand io.Reader, msg []byte, opts crypto.SignerOpts) (signature []byte, err error) {
  4516  	if _, ok := opts.(*rsa.PSSOptions); ok {
  4517  		return nil, errors.New("PSSOptions passed instead of hash")
  4518  	}
  4519  	h := opts.HashFunc().New()
  4520  	h.Write(msg)
  4521  	tbs := h.Sum(nil)
  4522  	return rsa.SignPKCS1v15(rand, rsaPrivateKey, opts.HashFunc(), tbs)
  4523  }
  4524  
  4525  func TestMessageSigner(t *testing.T) {
  4526  	template := Certificate{
  4527  		SignatureAlgorithm:    SHA256WithRSA,
  4528  		SerialNumber:          big.NewInt(1),
  4529  		Subject:               pkix.Name{CommonName: "Cert"},
  4530  		NotBefore:             time.Unix(1000, 0),
  4531  		NotAfter:              time.Unix(100000, 0),
  4532  		BasicConstraintsValid: true,
  4533  		IsCA:                  true,
  4534  	}
  4535  	certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), &messageSigner{})
  4536  	if err != nil {
  4537  		t.Fatalf("CreateCertificate failed: %s", err)
  4538  	}
  4539  	cert, err := ParseCertificate(certDER)
  4540  	if err != nil {
  4541  		t.Fatalf("ParseCertificate failed: %s", err)
  4542  	}
  4543  	if err := cert.CheckSignatureFrom(cert); err != nil {
  4544  		t.Fatalf("CheckSignatureFrom failed: %s", err)
  4545  	}
  4546  }
  4547  
  4548  func TestCreateCertificateNegativeMaxPathLength(t *testing.T) {
  4549  	template := Certificate{
  4550  		SerialNumber:          big.NewInt(1),
  4551  		Subject:               pkix.Name{CommonName: "TEST"},
  4552  		NotBefore:             time.Unix(1000, 0),
  4553  		NotAfter:              time.Unix(100000, 0),
  4554  		BasicConstraintsValid: true,
  4555  		IsCA:                  true,
  4556  
  4557  		// CreateCertificate treats -1 in the same way as: MaxPathLen == 0 && MaxPathLenZero == false.
  4558  		MaxPathLen: -1,
  4559  	}
  4560  
  4561  	_, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4562  	if err != nil {
  4563  		t.Fatalf("CreateCertificate() unexpected error: %v", err)
  4564  	}
  4565  
  4566  	template.MaxPathLen = -2
  4567  	_, err = CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey)
  4568  	if err == nil || err.Error() != "x509: invalid MaxPathLen, must be greater or equal to -1" {
  4569  		t.Fatalf(`CreateCertificate() = %v; want = "x509: invalid MaxPathLen, must be greater or equal to -1"`, err)
  4570  	}
  4571  }
  4572  
  4573  func TestEKUOIDS(t *testing.T) {
  4574  	for _, eku := range extKeyUsageOIDs {
  4575  		oid := eku.extKeyUsage.OID()
  4576  		if !oid.EqualASN1OID(eku.oid) {
  4577  			t.Errorf("extKeyUsage %v: expected OID %v, got %v", eku.extKeyUsage, eku.oid, oid)
  4578  		}
  4579  	}
  4580  }
  4581  
  4582  func TestMLDSA(t *testing.T) {
  4583  	cryptotest.MustMinimumFIPS140ModuleVersion(t, "v1.26.0")
  4584  
  4585  	t.Run("ML-DSA-44", func(t *testing.T) {
  4586  		testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA44,
  4587  			rfc9881ExamplePublicKeyMLDSA44, rfc9881ExampleCertificateMLDSA44)
  4588  	})
  4589  	t.Run("ML-DSA-65", func(t *testing.T) {
  4590  		testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA65,
  4591  			rfc9881ExamplePublicKeyMLDSA65, rfc9881ExampleCertificateMLDSA65)
  4592  	})
  4593  	t.Run("ML-DSA-87", func(t *testing.T) {
  4594  		testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA87,
  4595  			rfc9881ExamplePublicKeyMLDSA87, rfc9881ExampleCertificateMLDSA87)
  4596  	})
  4597  
  4598  	key, err := ParsePKCS8PrivateKey(pemDecode(t, rfc9881ExamplePrivateKeyMLDSA44Expanded))
  4599  	if key != nil || err == nil || !strings.Contains(err.Error(), "supported") {
  4600  		t.Fatalf("ParsePKCS8PrivateKey should fail when parsing expanded ML-DSA-44 private key: got key %v, err %v", key, err)
  4601  	}
  4602  	key, err = ParsePKCS8PrivateKey(pemDecode(t, rfc9881ExamplePrivateKeyMLDSA44Both))
  4603  	if key != nil || err == nil || !strings.Contains(err.Error(), "openssl") {
  4604  		t.Fatalf("ParsePKCS8PrivateKey should fail when parsing ML-DSA-44 private key with both seed and expanded: got key %v, err %v", key, err)
  4605  	}
  4606  }
  4607  
  4608  func testMLDSA(t *testing.T, privateKeyPEM, publicKeyPEM, certPEM string) {
  4609  	privKey, err := ParsePKCS8PrivateKey(pemDecode(t, privateKeyPEM))
  4610  	if err != nil {
  4611  		t.Fatalf("ParsePKCS8PrivateKey failed: %s", err)
  4612  	}
  4613  	if _, ok := privKey.(*mldsa.PrivateKey); !ok {
  4614  		t.Fatalf("ParsePKCS8PrivateKey returned wrong type: got %T, want *mldsa.PrivateKey", privKey)
  4615  	}
  4616  	if hex.EncodeToString(privKey.(*mldsa.PrivateKey).Bytes()) != "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f" {
  4617  		t.Fatal("ParsePKCS8PrivateKey returned wrong private key value")
  4618  	}
  4619  
  4620  	got, err := MarshalPKCS8PrivateKey(privKey)
  4621  	if err != nil {
  4622  		t.Fatalf("MarshalPKCS8PrivateKey failed: %s", err)
  4623  	}
  4624  	if !bytes.Equal(got, pemDecode(t, privateKeyPEM)) {
  4625  		t.Fatal("MarshalPKCS8PrivateKey did not return original DER bytes")
  4626  	}
  4627  
  4628  	pubKey, err := ParsePKIXPublicKey(pemDecode(t, publicKeyPEM))
  4629  	if err != nil {
  4630  		t.Fatalf("ParsePKIXPublicKey failed: %s", err)
  4631  	}
  4632  	if _, ok := pubKey.(*mldsa.PublicKey); !ok {
  4633  		t.Fatalf("ParsePKIXPublicKey returned wrong type: got %T, want *mldsa.PublicKey", pubKey)
  4634  	}
  4635  	if !pubKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) {
  4636  		t.Fatal("ParsePKIXPublicKey returned public key that does not match private key")
  4637  	}
  4638  
  4639  	got, err = MarshalPKIXPublicKey(pubKey)
  4640  	if err != nil {
  4641  		t.Fatalf("MarshalPKIXPublicKey failed: %s", err)
  4642  	}
  4643  	if !bytes.Equal(got, pemDecode(t, publicKeyPEM)) {
  4644  		t.Fatal("MarshalPKIXPublicKey did not return original DER bytes")
  4645  	}
  4646  
  4647  	cert, err := ParseCertificate(pemDecode(t, certPEM))
  4648  	if err != nil {
  4649  		t.Fatalf("ParseCertificate failed: %s", err)
  4650  	}
  4651  	if !cert.PublicKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) {
  4652  		t.Fatal("ParseCertificate returned certificate with public key that does not match private key")
  4653  	}
  4654  	if cert.PublicKeyAlgorithm != MLDSA {
  4655  		t.Fatalf("ParseCertificate returned certificate with wrong public key algorithm: got %v, want MLDSA", cert.PublicKeyAlgorithm)
  4656  	}
  4657  	switch pubKey.(*mldsa.PublicKey).Parameters() {
  4658  	case mldsa.MLDSA44():
  4659  		if cert.SignatureAlgorithm != MLDSA44 {
  4660  			t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA44", cert.SignatureAlgorithm)
  4661  		}
  4662  	case mldsa.MLDSA65():
  4663  		if cert.SignatureAlgorithm != MLDSA65 {
  4664  			t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA65", cert.SignatureAlgorithm)
  4665  		}
  4666  	case mldsa.MLDSA87():
  4667  		if cert.SignatureAlgorithm != MLDSA87 {
  4668  			t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA87", cert.SignatureAlgorithm)
  4669  		}
  4670  	default:
  4671  		t.Fatal("ParseCertificate returned certificate with unknown MLDSA parameters")
  4672  	}
  4673  	if err := cert.CheckSignatureFrom(cert); err != nil {
  4674  		t.Fatalf("CheckSignatureFrom failed: %s", err)
  4675  	}
  4676  
  4677  	got, err = CreateCertificate(rand.Reader, cert, cert, privKey.(*mldsa.PrivateKey).PublicKey(), privKey)
  4678  	if err != nil {
  4679  		t.Fatalf("CreateCertificate failed: %s", err)
  4680  	}
  4681  	cert2, err := ParseCertificate(got)
  4682  	if err != nil {
  4683  		t.Fatalf("ParseCertificate failed: %s", err)
  4684  	}
  4685  	if !cert2.PublicKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) {
  4686  		t.Fatal("ParseCertificate returned certificate with public key that does not match private key")
  4687  	}
  4688  	if cert2.SignatureAlgorithm != cert.SignatureAlgorithm {
  4689  		t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want %v", cert2.SignatureAlgorithm, cert.SignatureAlgorithm)
  4690  	}
  4691  	if err := cert2.CheckSignatureFrom(cert2); err != nil {
  4692  		t.Fatalf("CheckSignatureFrom failed: %s", err)
  4693  	}
  4694  
  4695  	msg := []byte("test message")
  4696  	sig, err := privKey.(*mldsa.PrivateKey).Sign(rand.Reader, msg, crypto.Hash(0))
  4697  	if err != nil {
  4698  		t.Fatalf("Sign failed: %s", err)
  4699  	}
  4700  	certParams := cert.PublicKey.(*mldsa.PublicKey).Parameters()
  4701  	for _, tc := range []struct {
  4702  		algo   SignatureAlgorithm
  4703  		params mldsa.Parameters
  4704  		name   string
  4705  	}{
  4706  		{MLDSA44, mldsa.MLDSA44(), "ML-DSA-44"},
  4707  		{MLDSA65, mldsa.MLDSA65(), "ML-DSA-65"},
  4708  		{MLDSA87, mldsa.MLDSA87(), "ML-DSA-87"},
  4709  	} {
  4710  		err := cert.CheckSignature(tc.algo, msg, sig)
  4711  		if tc.params == certParams {
  4712  			if err != nil {
  4713  				t.Errorf("CheckSignature(%v): got %v, want nil", tc.algo, err)
  4714  			}
  4715  		} else {
  4716  			if err == nil || !strings.Contains(err.Error(), tc.name) {
  4717  				t.Errorf("CheckSignature(%v) on %v key: got %v, want parameter mismatch error mentioning %v", tc.algo, certParams, err, tc.name)
  4718  			}
  4719  		}
  4720  	}
  4721  }
  4722  
  4723  func TestMLKEM(t *testing.T) {
  4724  	t.Run("ML-KEM-768", func(t *testing.T) {
  4725  		testMLKEM[*mlkem.DecapsulationKey768](t,
  4726  			rfc9935ExamplePrivateKeyMLKEM768,
  4727  			rfc9935ExamplePublicKeyMLKEM768,
  4728  			rfc9935ExampleCertificateMLKEM768)
  4729  	})
  4730  	t.Run("ML-KEM-1024", func(t *testing.T) {
  4731  		testMLKEM[*mlkem.DecapsulationKey1024](t,
  4732  			rfc9935ExamplePrivateKeyMLKEM1024,
  4733  			rfc9935ExamplePublicKeyMLKEM1024,
  4734  			rfc9935ExampleCertificateMLKEM1024)
  4735  	})
  4736  
  4737  	key, err := ParsePKCS8PrivateKey(pemDecode(t, rfc9935ExamplePrivateKeyMLKEM768Expanded))
  4738  	if key != nil || err == nil || !strings.Contains(err.Error(), "supported") {
  4739  		t.Fatalf("ParsePKCS8PrivateKey should fail when parsing expanded ML-KEM-768 private key: got key %v, err %v", key, err)
  4740  	}
  4741  	key, err = ParsePKCS8PrivateKey(pemDecode(t, rfc9935ExamplePrivateKeyMLKEM768Both))
  4742  	if key != nil || err == nil || !strings.Contains(err.Error(), "supported") {
  4743  		t.Fatalf("ParsePKCS8PrivateKey should fail when parsing ML-KEM-768 private key with both seed and expanded: got key %v, err %v", key, err)
  4744  	}
  4745  
  4746  	// CreateCertificate must reject ML-KEM subject public keys.
  4747  	dk, err := mlkem.GenerateKey768()
  4748  	if err != nil {
  4749  		t.Fatalf("GenerateKey768: %v", err)
  4750  	}
  4751  	caPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
  4752  	if err != nil {
  4753  		t.Fatalf("ecdsa.GenerateKey: %v", err)
  4754  	}
  4755  	tmpl := &Certificate{
  4756  		SerialNumber: big.NewInt(1),
  4757  		Subject:      pkix.Name{CommonName: "ML-KEM-768"},
  4758  		NotBefore:    time.Now(),
  4759  		NotAfter:     time.Now().Add(time.Hour),
  4760  	}
  4761  	if _, err := CreateCertificate(rand.Reader, tmpl, tmpl, dk.EncapsulationKey(), caPriv); err == nil {
  4762  		t.Fatal("CreateCertificate with ML-KEM subject public key should fail")
  4763  	}
  4764  }
  4765  
  4766  func testMLKEM[DK interface {
  4767  	Bytes() []byte
  4768  	EncapsulationKey() EK
  4769  }, EK interface {
  4770  	Bytes() []byte
  4771  }](t *testing.T, privateKeyPEM, publicKeyPEM, certPEM string) {
  4772  	privKey, err := ParsePKCS8PrivateKey(pemDecode(t, privateKeyPEM))
  4773  	if err != nil {
  4774  		t.Fatalf("ParsePKCS8PrivateKey failed: %s", err)
  4775  	}
  4776  	dk, ok := privKey.(DK)
  4777  	if !ok {
  4778  		t.Fatalf("ParsePKCS8PrivateKey returned wrong type: got %T, want %T", privKey, *new(DK))
  4779  	}
  4780  	// All the example private keys in RFC 9935, Appendix C.1 use this seed.
  4781  	if hex.EncodeToString(dk.Bytes()) != "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f" {
  4782  		t.Fatal("ParsePKCS8PrivateKey returned wrong private key value")
  4783  	}
  4784  
  4785  	got, err := MarshalPKCS8PrivateKey(privKey)
  4786  	if err != nil {
  4787  		t.Fatalf("MarshalPKCS8PrivateKey failed: %s", err)
  4788  	}
  4789  	if !bytes.Equal(got, pemDecode(t, privateKeyPEM)) {
  4790  		t.Fatal("MarshalPKCS8PrivateKey did not return original DER bytes")
  4791  	}
  4792  
  4793  	pubKey, err := ParsePKIXPublicKey(pemDecode(t, publicKeyPEM))
  4794  	if err != nil {
  4795  		t.Fatalf("ParsePKIXPublicKey failed: %s", err)
  4796  	}
  4797  	ek, ok := pubKey.(EK)
  4798  	if !ok {
  4799  		t.Fatalf("ParsePKIXPublicKey returned wrong type: got %T, want %T", pubKey, *new(EK))
  4800  	}
  4801  	if !bytes.Equal(ek.Bytes(), dk.EncapsulationKey().Bytes()) {
  4802  		t.Fatal("ParsePKIXPublicKey returned public key that does not match private key")
  4803  	}
  4804  
  4805  	got, err = MarshalPKIXPublicKey(pubKey)
  4806  	if err != nil {
  4807  		t.Fatalf("MarshalPKIXPublicKey failed: %s", err)
  4808  	}
  4809  	if !bytes.Equal(got, pemDecode(t, publicKeyPEM)) {
  4810  		t.Fatal("MarshalPKIXPublicKey did not return original DER bytes")
  4811  	}
  4812  
  4813  	// We don't support ML-KEM certificates, ParseCertificate must leave
  4814  	// PublicKey nil and report UnknownPublicKeyAlgorithm.
  4815  	cert, err := ParseCertificate(pemDecode(t, certPEM))
  4816  	if err != nil {
  4817  		t.Fatalf("ParseCertificate failed: %s", err)
  4818  	}
  4819  	if cert.PublicKey != nil {
  4820  		t.Errorf("ParseCertificate returned non-nil PublicKey for ML-KEM certificate: %T", cert.PublicKey)
  4821  	}
  4822  	if cert.PublicKeyAlgorithm != UnknownPublicKeyAlgorithm {
  4823  		t.Errorf("ParseCertificate returned PublicKeyAlgorithm %v, want UnknownPublicKeyAlgorithm", cert.PublicKeyAlgorithm)
  4824  	}
  4825  }
  4826  
  4827  func pemDecode(t *testing.T, pemStr string) []byte {
  4828  	b, _ := pem.Decode([]byte(pemStr))
  4829  	if b == nil {
  4830  		t.Fatalf("couldn't decode PEM string")
  4831  	}
  4832  	return b.Bytes
  4833  }
  4834  
  4835  var rfc9881ExamplePrivateKeyMLDSA44 = testingKey(`
  4836  -----BEGIN TESTING KEY-----
  4837  MDQCAQAwCwYJYIZIAWUDBAMRBCKAIAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ
  4838  GhscHR4f
  4839  -----END TESTING KEY-----
  4840  `)
  4841  
  4842  var rfc9881ExamplePrivateKeyMLDSA44Expanded = testingKey(`
  4843  -----BEGIN TESTING KEY-----
  4844  MIIKGAIBADALBglghkgBZQMEAxEEggoEBIIKANeytHJUquDbReeTDUqY0sl9jxOX
  4845  0Xidr6FwJLMW6b7JOc4Pf3f421ZE3No2a/5HNL2V9DX/mmE6pUqkHCxpTAQymgex
  4846  +rtI9SownxGhiY+EjiMi/+Yj7IENs77jNoWFSogmnaMg1RIL/P6JoY4w9xFNg6pA
  4847  SmRrbJlziYYNElIu4ABuI4SBkYZhmyYNEYZk1KYoIhhEgkAomBRhSKZhTEJIoZII
  4848  wjgpUSRICKElwggxCMRxIBQJFINsGKeAhBBuycBwIrVkCLBhDAcEmBJEUYhpWQBG
  4849  IpMgQQYuQrZMARZJFChMQahRgEYKURZRWgggAiJE3JhJ0TJR4TBl08CFkqhREqFk
  4850  ADkiCUZiHMcM2Qht0AYmUkCFgEQwkQYsUMgJJMWEGpZtSpgsmQZtpEQyIKdkWjJu
  4851  EbVwIJJhJBOOBIUsCkhyyKBR0wgqmSCAWCQgJAdOWRSIEKRkYMBt4LKNGxkJIDQi
  4852  wCRBCUNxCiEgYaIBUiJSG4CAmjQAE5NN0zIpIhcKmJJpGhRRICchnMAgYqKBSBhp
  4853  GoVNg0RpWyBBAxJCyxhGAakNDAIxg7AhWiJKyJIF2ZBpBDBqSwZK0rIBHEBAgUIy
  4854  UjJyVKZAWhgQDDISksKAUhJiXIIoC7RsA0KNUxAMFAEO4TZSiIQkkQIKY0YmIAYp
  4855  EcIo0CBIArNsojYJWoZIy7Rhi0ZixECCGokJEAJNJLJFIBIlJMkFiCiMycBNWUgi
  4856  CiduwTRkTJBgW0RQgoZJQ4gEQ7KMYDCAoogthKRtjKYp0MaEQgZGiYhRAKmNAUmN
  4857  5DgNpAaN05RxQrJsGoRhG6MoQrQoCKBxGsUx4KBMATdlJChiFCiQCRBh2UAiGzNg
  4858  CQKS0CSBIAQISRhEoyItXIhEFJgIpEZhAZVkCzkKDJRQykBq0rIgwDgBgjCOE7kI
  4859  kYCEFIgpwBiREjUNoCQi4gQG2cKFBCgSHMmJGAJy0kApwggS2AYqmZRxm7hoI4Qp
  4860  GiKJFEUR3IJEUJZFDESEwLIEmqYFQ4YsRDJuiEQhIKhMmjBw47gtYyaIAyVJA0OM
  4861  SKgJyhRyUzROEkMIG6cEWTAi2ZSA4jQigUISnDAqlDQmYQRFJCYoE0YJSjJtESgJ
  4862  GLglYigRE0ENQbIRkIRMixISosaIycAwIgYG0hiOhIYwkERSEogx2SBxE8UoQwYO
  4863  AzBgzKaEWCZSTIgBHvclYshf+kOs+kkhfysXLXu8FGIObZgKcaq73wxF6aIG7LFC
  4864  P+4V3swXYBMAFJ2SI81ubG4fqOQfx8ZJOKtokF/T3NpQ2HCC59DXHRvJsrhMhVI8
  4865  qP5srSlK34O+FbEI/3IdDMh7w906dZAYSw6EVmOpH8nhw8U6YdhnQgsE8JI1V1O8
  4866  ZaBjaP1BKV/QmSQTLG+R9nlkwUJnSnJcNDkUxM7PWMB0vK9FWMl795EeB6ptCTjy
  4867  7iuzwajFldY16ENC/eoB3CSyEa0vwoHPd+WREMerxUvwyG1IC5vidkcdydYDzumM
  4868  /as+n8+3A3k1YFSepEUPp7M/uRacRLTSX7nEV/SXkc09oD6slglYE8EFEyzNpOY+
  4869  SSKM0j2KHzeFbxQtk7kNsJ+Cr4kljGOquAR6gMA2yTV+ogRvjcY1TwxSlfNCu0F9
  4870  PP6wsf0zYiwp4Uy72S4TY8ZevUUEt1EjKblnDjLhssZ6VOfxpV+Ln56gToyjpwXm
  4871  KjxeY3N0r7eutt3qYSzeKPAaIC16pONHItJ90/m4mJTQGf1dTXEZ7+NyO7oQTLi7
  4872  CYHgdN46/iANqq6tgmzEXyRNv0Ma+rNO+994JHTS/VcRj2RiFJNO2Zy6OwA+jWej
  4873  g29vGfxBkQzlFj7jrpnrhNUU63YeY2hOpW+XkdLdSqxuYWi5SMgX91oiKssOjNwD
  4874  zEr+j2cVfho2O3+u/58XK5iRNnfFod0IXp7kwiBSwa9YGTEWZz3NO/xfNLhV3MbH
  4875  eIVknp5x9D1K6g9Lcsp+2gV4uhPTGmWNLQYKmmb/ae0b55l6L7HScj04+b+r4Y+O
  4876  ezzakG5Om16ULI6uspYHDr/TZJR6lAzJeL7Wazd0nm1dzXvoxJREDiuEzs/vuYwL
  4877  7fs8QeM1nSzXGX++cgxIqmxrZGXB7mPjVpwq3HREkTcLf3gm/gt3odGdZBAdAyuR
  4878  gQa0LS73N0flYB/kulDyPt5SHwMagX0VKUpDci6DeHhLbbDPG6norpEdkgG5zpzD
  4879  AZxvXCfLmNomFEtkIlp8kysw92Hnii1Zodi4PsY0Si9t1H52VwbQC/SnmmqSbDup
  4880  HYEsjyx5erF5Zwnl0WhWd4KTUp8ChtAVw7U5lhlkKjM+nlk9bj9TU5lCCOnmozKF
  4881  HX9lJSKpKLkX4n4tbUITff4uv6b7HGeybAJUUoaF9+vb4xWmjqotp2noqfQtPmAA
  4882  fHEzCSaywAEtg+rU5P0e2HLM0ZciAdKwJ/NUWsLTDNeLwddA/sy8b8KgRGxuMOrF
  4883  H1ppCYqi1EfyCFtOTkuSzMJpIdLeR4UYzQkM4meuotJ62lf9iLSXbYn7hDzcz0mn
  4884  bKJnnmgBv6f7AxiW+1BilwS5kjk2u13ThTERIcrfsRmV5ZtzA0z2ftA6uBOGdkjQ
  4885  JYKAh+lJqa/Ra5XXLZmx7coleqwTL/t6Bwmu1anA/wX7Dyu/KECe7XtfWAG+lkzt
  4886  AZ4ct4UdOFHxApBnThn/sAizAcSs9kGiuxQhbh1pyr9Ste8idJaw8weZqFXRF/rT
  4887  dEpvozUD6nmLUt3X7lQmYJ2/zT8ME7Fk1sBR9+1KEZcZpxLjiNMoQCCB/xNUtVTS
  4888  wjev7TsVHEuo6fS964SZowZuJrvGnorwid7HFzHR3FKeqxfvc3RzTA/kdUlMg4Nr
  4889  3TSgO5vImRRxYGG/uY7G5hw+1EOO3K8lJDxkcIa56nAYsNmooLAM7LAKveJJjWnC
  4890  M2EBp3LL5PVxUj9RvQWILN81i4ScwUCqH68iQjoShRzg4z/UiXWklZ+lxf5BjJOQ
  4891  gZGrbnQbd7/gLL1pjueVxGbWFWGeZEE4LG6sAYNO6atzzqgLviNceNqRvXm2+C+J
  4892  l4XWhwDTk+Z1wiJNa3oa0hMgSVZ5ra7XAWe1CGZxOlMQnbe299gTBOzf2Dsxmx7y
  4893  SDBrRa0p593Mhj2sVgSLXWnqF1AR92FMAKhqhjzeGHKokyh4uax+GsW9pJl7cgZP
  4894  DNdfTIFOA03hGsuQE89+qSa05+qs4HDHuiGI760uQx4SI9Rd0FxNhAPC5FzuZBPs
  4895  vnUn6HPkVcTmEKYYOarMC9VtJIPnjymLZqR46y9VjLr8qGvoR7rrAsWyFsjNiP6k
  4896  3ySbCeZwogcDq6wksKkavEpWRmAUQroQvs/TCZOIAFHQf1agWpN556jmvv7j8i+q
  4897  EGOY93BgBuQum+HvidJcJy8RqVCVxYfXE3MihN6dvTxyF7BoniHY6w/2lmg=
  4898  -----END TESTING KEY-----
  4899  `)
  4900  
  4901  var rfc9881ExamplePrivateKeyMLDSA44Both = testingKey(`
  4902  -----BEGIN TESTING KEY-----
  4903  MIIKPgIBADALBglghkgBZQMEAxEEggoqMIIKJgQgAAECAwQFBgcICQoLDA0ODxAR
  4904  EhMUFRYXGBkaGxwdHh8EggoA17K0clSq4NtF55MNSpjSyX2PE5fReJ2voXAksxbp
  4905  vsk5zg9/d/jbVkTc2jZr/kc0vZX0Nf+aYTqlSqQcLGlMBDKaB7H6u0j1KjCfEaGJ
  4906  j4SOIyL/5iPsgQ2zvuM2hYVKiCadoyDVEgv8/omhjjD3EU2DqkBKZGtsmXOJhg0S
  4907  Ui7gAG4jhIGRhmGbJg0RhmTUpigiGESCQCiYFGFIpmFMQkihkgjCOClRJEgIoSXC
  4908  CDEIxHEgFAkUg2wYp4CEEG7JwHAitWQIsGEMBwSYEkRRiGlZAEYikyBBBi5CtkwB
  4909  FkkUKExBqFGARgpRFlFaCCACIkTcmEnRMlHhMGXTwIWSqFESoWQAOSIJRmIcxwzZ
  4910  CG3QBiZSQIWARDCRBixQyAkkxYQalm1KmCyZBm2kRDIgp2RaMm4RtXAgkmEkE44E
  4911  hSwKSHLIoFHTCCqZIIBYJCAkB05ZFIgQpGRgwG3gso0bGQkgNCLAJEEJQ3EKISBh
  4912  ogFSIlIbgICaNAATk03TMikiFwqYkmkaFFEgJyGcwCBiooFIGGkahU2DRGlbIEED
  4913  EkLLGEYBqQ0MAjGDsCFaIkrIkgXZkGkEMGpLBkrSsgEcQECBQjJSMnJUpkBaGBAM
  4914  MhKSwoBSEmJcgigLtGwDQo1TEAwUAQ7hNlKIhCSRAgpjRiYgBikRwijQIEgCs2yi
  4915  NglahkjLtGGLRmLEQIIaiQkQAk0kskUgEiUkyQWIKIzJwE1ZSCIKJ27BNGRMkGBb
  4916  RFCChklDiARDsoxgMICiiC2EpG2MpinQxoRCBkaJiFEAqY0BSY3kOA2kBo3TlHFC
  4917  smwahGEboyhCtCgIoHEaxTHgoEwBN2UkKGIUKJAJEGHZQCIbM2AJApLQJIEgBAhJ
  4918  GESjIi1ciEQUmAikRmEBlWQLOQoMlFDKQGrSsiDAOAGCMI4TuQiRgIQUiCnAGJES
  4919  NQ2gJCLiBAbZwoUEKBIcyYkYAnLSQCnCCBLYBiqZlHGbuGgjhCkaIokURRHcgkRQ
  4920  lkUMRITAsgSapgVDhixEMm6IRCEgqEyaMHDjuC1jJogDJUkDQ4xIqAnKFHJTNE4S
  4921  QwgbpwRZMCLZlIDiNCKBQhKcMCqUNCZhBEUkJigTRglKMm0RKAkYuCViKBETQQ1B
  4922  shGQhEyLEhKixojJwDAiBgbSGI6EhjCQRFISiDHZIHETxShDBg4DMGDMpoRYJlJM
  4923  iAEe9yViyF/6Q6z6SSF/Kxcte7wUYg5tmApxqrvfDEXpogbssUI/7hXezBdgEwAU
  4924  nZIjzW5sbh+o5B/Hxkk4q2iQX9Pc2lDYcILn0NcdG8myuEyFUjyo/mytKUrfg74V
  4925  sQj/ch0MyHvD3Tp1kBhLDoRWY6kfyeHDxTph2GdCCwTwkjVXU7xloGNo/UEpX9CZ
  4926  JBMsb5H2eWTBQmdKclw0ORTEzs9YwHS8r0VYyXv3kR4Hqm0JOPLuK7PBqMWV1jXo
  4927  Q0L96gHcJLIRrS/Cgc935ZEQx6vFS/DIbUgLm+J2Rx3J1gPO6Yz9qz6fz7cDeTVg
  4928  VJ6kRQ+nsz+5FpxEtNJfucRX9JeRzT2gPqyWCVgTwQUTLM2k5j5JIozSPYofN4Vv
  4929  FC2TuQ2wn4KviSWMY6q4BHqAwDbJNX6iBG+NxjVPDFKV80K7QX08/rCx/TNiLCnh
  4930  TLvZLhNjxl69RQS3USMpuWcOMuGyxnpU5/GlX4ufnqBOjKOnBeYqPF5jc3Svt662
  4931  3ephLN4o8BogLXqk40ci0n3T+biYlNAZ/V1NcRnv43I7uhBMuLsJgeB03jr+IA2q
  4932  rq2CbMRfJE2/Qxr6s07733gkdNL9VxGPZGIUk07ZnLo7AD6NZ6ODb28Z/EGRDOUW
  4933  PuOumeuE1RTrdh5jaE6lb5eR0t1KrG5haLlIyBf3WiIqyw6M3APMSv6PZxV+GjY7
  4934  f67/nxcrmJE2d8Wh3QhenuTCIFLBr1gZMRZnPc07/F80uFXcxsd4hWSennH0PUrq
  4935  D0tyyn7aBXi6E9MaZY0tBgqaZv9p7RvnmXovsdJyPTj5v6vhj457PNqQbk6bXpQs
  4936  jq6ylgcOv9NklHqUDMl4vtZrN3SebV3Ne+jElEQOK4TOz++5jAvt+zxB4zWdLNcZ
  4937  f75yDEiqbGtkZcHuY+NWnCrcdESRNwt/eCb+C3eh0Z1kEB0DK5GBBrQtLvc3R+Vg
  4938  H+S6UPI+3lIfAxqBfRUpSkNyLoN4eEttsM8bqeiukR2SAbnOnMMBnG9cJ8uY2iYU
  4939  S2QiWnyTKzD3YeeKLVmh2Lg+xjRKL23UfnZXBtAL9KeaapJsO6kdgSyPLHl6sXln
  4940  CeXRaFZ3gpNSnwKG0BXDtTmWGWQqMz6eWT1uP1NTmUII6eajMoUdf2UlIqkouRfi
  4941  fi1tQhN9/i6/pvscZ7JsAlRShoX369vjFaaOqi2naeip9C0+YAB8cTMJJrLAAS2D
  4942  6tTk/R7YcszRlyIB0rAn81RawtMM14vB10D+zLxvwqBEbG4w6sUfWmkJiqLUR/II
  4943  W05OS5LMwmkh0t5HhRjNCQziZ66i0nraV/2ItJdtifuEPNzPSadsomeeaAG/p/sD
  4944  GJb7UGKXBLmSOTa7XdOFMREhyt+xGZXlm3MDTPZ+0Dq4E4Z2SNAlgoCH6Umpr9Fr
  4945  ldctmbHtyiV6rBMv+3oHCa7VqcD/BfsPK78oQJ7te19YAb6WTO0Bnhy3hR04UfEC
  4946  kGdOGf+wCLMBxKz2QaK7FCFuHWnKv1K17yJ0lrDzB5moVdEX+tN0Sm+jNQPqeYtS
  4947  3dfuVCZgnb/NPwwTsWTWwFH37UoRlxmnEuOI0yhAIIH/E1S1VNLCN6/tOxUcS6jp
  4948  9L3rhJmjBm4mu8aeivCJ3scXMdHcUp6rF+9zdHNMD+R1SUyDg2vdNKA7m8iZFHFg
  4949  Yb+5jsbmHD7UQ47cryUkPGRwhrnqcBiw2aigsAzssAq94kmNacIzYQGncsvk9XFS
  4950  P1G9BYgs3zWLhJzBQKofryJCOhKFHODjP9SJdaSVn6XF/kGMk5CBkatudBt3v+As
  4951  vWmO55XEZtYVYZ5kQTgsbqwBg07pq3POqAu+I1x42pG9ebb4L4mXhdaHANOT5nXC
  4952  Ik1rehrSEyBJVnmtrtcBZ7UIZnE6UxCdt7b32BME7N/YOzGbHvJIMGtFrSnn3cyG
  4953  PaxWBItdaeoXUBH3YUwAqGqGPN4YcqiTKHi5rH4axb2kmXtyBk8M119MgU4DTeEa
  4954  y5ATz36pJrTn6qzgcMe6IYjvrS5DHhIj1F3QXE2EA8LkXO5kE+y+dSfoc+RVxOYQ
  4955  phg5qswL1W0kg+ePKYtmpHjrL1WMuvyoa+hHuusCxbIWyM2I/qTfJJsJ5nCiBwOr
  4956  rCSwqRq8SlZGYBRCuhC+z9MJk4gAUdB/VqBak3nnqOa+/uPyL6oQY5j3cGAG5C6b
  4957  4e+J0lwnLxGpUJXFh9cTcyKE3p29PHIXsGieIdjrD/aWaA==
  4958  -----END TESTING KEY-----
  4959  `)
  4960  
  4961  var rfc9881ExamplePrivateKeyMLDSA65 = testingKey(`
  4962  -----BEGIN TESTING KEY-----
  4963  MDQCAQAwCwYJYIZIAWUDBAMSBCKAIAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ
  4964  GhscHR4f
  4965  -----END TESTING KEY-----
  4966  `)
  4967  
  4968  var rfc9881ExamplePrivateKeyMLDSA87 = testingKey(`
  4969  -----BEGIN TESTING KEY-----
  4970  MDQCAQAwCwYJYIZIAWUDBAMTBCKAIAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ
  4971  GhscHR4f
  4972  -----END TESTING KEY-----
  4973  `)
  4974  
  4975  var rfc9881ExamplePublicKeyMLDSA44 = `
  4976  -----BEGIN PUBLIC KEY-----
  4977  MIIFMjALBglghkgBZQMEAxEDggUhANeytHJUquDbReeTDUqY0sl9jxOX0Xidr6Fw
  4978  JLMW6b7JT8mUbULxm3mnQTu6oz5xSctC7VEVaTrAQfrLmIretf4OHYYxGEmVtZLD
  4979  l9IpTi4U+QqkFLo4JomaxD9MzKy8JumoMrlRGNXLQzy++WYLABOOCBf2HnYsonTD
  4980  atVU6yKqwRYuSrAay6HjjE79j4C2WzM9D3LlXf5xzpweu5iJ58VhBsD9c4A6Kuz+
  4981  r97XqjyyztpU0SvYzTanjPl1lDtHq9JeiArEUuV0LtHo0agq+oblkMdYwVrk0oQN
  4982  kryhpQkPQElll/yn2LlRPxob2m6VCqqY3kZ1B9Sk9aTwWZIWWCw1cvYu2okFqzWB
  4983  ZwxKAnd6M+DKcpX9j0/20aCjp2g9ZfX19/xg2gI+gmxfkhRMAvfRuhB1mHVT6pNn
  4984  /NdtmQt/qZzUWv24g21D5Fn1GH3wWEeXCaAepoNZNfpwRgmQzT3BukAbqUurHd5B
  4985  rGerMxncrKBgSNTE7vJ+4TqcF9BTj0MPLWQtwkFWYN54h32NirxyUjl4wELkKF9D
  4986  GYRsRBJiQpdoRMEOVWuiFbWnGeWdDGsqltOYWQcf3MLN51JKe+2uVOhbMY6FTo/i
  4987  svPt+slxkSgnCq/R5QRMOk/a/Z/zH5B4S46ORZYUSg2vWGUR09mWK56pWvGXtOX8
  4988  YPKx7RXeOlvvX4m9x52RBR2bKBbnT6VFMe/cHL501EiFf0drzVjyHAtlOzt2pOB2
  4989  plWaMCcYVVzGP3SFmqurkl8COGHKjND3utsocfZ9VTJtdFETWtRfShumkRj7ssij
  4990  DuyTku8/l3Bmya3VxxDMZHsVFNIX2VjHAXw+kP0gwE5nS5BIbpNwoxoAHTL0c5ee
  4991  SQZ0nn5Hf6C3RQj4pfI3gxK4PCW9OIygsP/3R4uvQrcWZ+2qyXxGsSlkPlhuWwVa
  4992  DCEZRtTzbmdb7Vhg+gQqMV2YJhZNapI3w1pfv0lUkKW9TfJIuVxKrneEtgVnMWas
  4993  QkW1tLCCoJ6TI+YvIHjFt2eDRG3v1zatOjcC1JsImESQCmGDM5e8RBmzDXqXoLOH
  4994  wZEUdMTUG1PjKpd6y28Op122W7OeWecB52lX3vby1EVZwxp3EitSBOO1whnxaIsU
  4995  7QvAuAGz5ugtzUPpwOn0F0TNmBW9G8iCDYuxI/BPrNGxtoXdWisbjbvz7ZM2cPCV
  4996  oYC08ZLQixC4+rvfzCskUY4y7qCl4MkEyoRHgAg/OwzS0Li2r2e8NVuUlAJdx7Cn
  4997  j6gOOi2/61EyiFHWB4GY6Uk2Ua54fsAlH5Irow6fUd9iptcnhM890gU5MXbfoySl
  4998  Er2Ulwo23TSlFKhnkfDrNvAUWwmrZGUbSgMTsplhGiocSIkWJ1mHaKMRQGC6RENI
  4999  bfUVIqHOiLMJhcIW+ObtF43VZ7MEoNTK+6iCooNC8XqaomrljbYwCD0sNY/fVmw/
  5000  XWKkKFZ7yeqM6VyqDzVHSwv6jzOaJQq0388gg76O77wQVeGP4VNw7ssmBWbYP/Br
  5001  IRquxDyim1TM0A+IFaJGXvC0ZRXMfkHzEk8J7/9zkwmrWLKaFFmgC85QOOk4yWeP
  5002  cusOTuX9quZtn4Vz/Jf8QrSVn0v4th14Qz6GsDNdbpGRxNi/SHs5BcEIz9asJLDO
  5003  t9y3z1H4TQ7Wh7lerrHFM8BvDZcCPZKnCCWDe1m6bLfU5WsKh8IDhiro8xW6WSXo
  5004  7e+meTaaIgJ2YVHxapZfn4Hs52zAcLVYaeTbl4TPBcgwsyQsgxI=
  5005  -----END PUBLIC KEY-----
  5006  `
  5007  
  5008  var rfc9881ExamplePublicKeyMLDSA65 = `
  5009  -----BEGIN PUBLIC KEY-----
  5010  MIIHsjALBglghkgBZQMEAxIDggehAEhoPZGXjjHrPd24sEc0gtK4il9iWUn9j1il
  5011  YeaWvUwn0Fs427Lt8B5mTv2Bvh6ok2iM5oqi1RxZWPi7xutOie5n0sAyCVTVchLK
  5012  xyKf8dbq8DkovVFRH42I2EdzbH3icw1ZeOVBBxMWCXiGdxG/VTmgv8TDUMK+Vyuv
  5013  DuLi+xbM/qCAKNmaxJrrt1k33c4RHNq2L/886ouiIz0eVvvFxaHnJt5j+t0q8Bax
  5014  GRd/o9lxotkncXP85VtndFrwt8IdWX2+uT5qMvNBxJpai+noJQiNHyqkUVXWyK4V
  5015  Nn5OsAO4/feFEHGUlzn5//CQI+r0UQTSqEpFkG7tRnGkTcKNJ5h7tV32np6FYfYa
  5016  gKcmmVA4Zf7Zt+5yqOF6GcQIFE9LKa/vcDHDpthXFhC0LJ9CEkWojxl+FoErAxFZ
  5017  tluWh+Wz6TTFIlrpinm6c9Kzmdc1EO/60Z5TuEUPC6j84QEv2Y0mCnSqqhP64kmg
  5018  BrHDT1uguILyY3giL7NvIoPCQ/D/618btBSgpw1V49QKVrbLyIrh8Dt7KILZje6i
  5019  jhRcne39jq8c7y7ZSosFD4lk9G0eoNDCpD4N2mGCrb9PbtF1tnQiV4Wb8i86QX7P
  5020  H52JMXteU51YevFrnhMT4EUU/6ZLqLP/K4Mh+IEcs/sCLI9kTnCkuAovv+5gSrtz
  5021  eQkeqObFx038AoNma0DAeThwAoIEoTa/XalWjreY00kDi9sMEeA0ReeEfLUGnHXP
  5022  KKxgHHeZ2VghDdvLIm5Rr++fHeR7Bzhz1tP5dFa+3ghQgudKKYss1I9LMJMVXzZs
  5023  j6YBxq+FjfoywISRsqKYh/kDNZSaXW7apnmIKjqV1r9tlwoiH0udPYy/OEr4GqyV
  5024  4rMpTgR4msg3J6XcBFWflq9B2KBTUW/u7rxSdG62qygZ4JEIcQ2DXwEfpjBlhyrT
  5025  NNXN/7KyMQUH6S/Jk64xfal/TzCc2vD2ftmdkCFVdgg4SflTskbX/ts/22dnmFCl
  5026  rUBOZBR/t89Pau3dBa+0uDSWjR/ogBSWDc5dlCI2Um4SpHjWnl++aXAxCzCMBoRQ
  5027  GM/HsqtDChOmsax7sCzMuz2RGsLxEGhhP74Cm/3OAs9c04lQ7XLIOUTt+8dWFa+H
  5028  +GTAUfPFVFbFQShjpAwG0dq1Yr3/BXG408ORe70wCIC7pemYI5uV+pG31kFtTzmL
  5029  OtvNMJg+01krTZ731CNv0A9Q2YqlOiNaxBcnIPd9lhcmcpgM/o/3pacCeD7cK6Mb
  5030  IlkBWhEvx/RoqcL5RkA5AC0w72eLTLeYvBFiFr96mnwYugO3tY/QdRXTEVBJ02FL
  5031  56B+dEMAdQ3x0sWHUziQWer8PXhczdMcB2SL7cA6XDuK1G0GTVnBPVc3Ryn8TilT
  5032  YuKlGRIEUwQovBUir6KP9f4WVeMEylvIwnrQ4MajndTfKJVsFLOMyTaCzv5AK71e
  5033  gtKcRk5E6103tI/FaN/gzG6OFrrqBeUTVZDxkpTnPoNnsCFtu4FQMLneVZE/CAOc
  5034  QjUcWeVRXdWvjgiaFeYl6Pbe5jk4bEZJfXomMoh3TeWBp96WKbQbRCQUH5ePuDMS
  5035  CO/ew8bg3jm8VwY/Pc1sRwNzwIiR6inLx8xtZIO4iJCDrOhqp7UbHCz+birRjZfO
  5036  NvvFbqQvrpfmp6wRSGRHjDZt8eux57EakJhQT9WXW98fSdxwACtjwXOanSY/utQH
  5037  P2qfbCuK9LTDMqEDoM/6Xe6y0GLKPCFf02ACa+fFFk9KRCTvdJSIBNZvRkh3Msgg
  5038  LHlUeGR7TqcdYnwIYCTMo1SkHwh3s48Zs3dK0glcjaU7Bp4hx2ri0gB+FnGe1ACA
  5039  0zT32lLp9aWZBDnK8IOpW4M/Aq0QoIwabQ8mDAByhb1KL0dwOlrvRlKH0lOxisIl
  5040  FDFiEP9WaBSxD4eik9bxmdPDlZmQ0MEmi09Q1fn877vyN70MKLgBgtZll0HxTxC/
  5041  uyG7oSq2IKojlvVsBoa06pAXmQIkIWsv6K12xKkUju+ahqNjWmqne8Hc+2+6Wad9
  5042  /am3Uw3AyoZIyNlzc44Burjwi0kF6EqkZBvWAkEM2XUgJl8vIx8rNeFesvoE0r2U
  5043  1ad6uvHg4WEBCpkAh/W0bqmIsrwFEv2g+pI9rdbEXFMB0JSDZzJltasuEPS6Ug9r
  5044  utVkpcPV4nvbCA99IOEylqMYGVTDnGSclD6+F99cH3quCo/hJsR3WFpdTWSKDQCL
  5045  avXozTG+aakpbU8/0l7YbyIeS5P2X1kplnUzYkuSNXUMMHB1ULWFNtEJpxMcWlu+
  5046  SlcVVnwSU0rsdmB2Huu5+uKJHHdFibgOVmrVV93vc2cZa3In6phw7wnd/seda5MZ
  5047  poebUgXXa/erpazzOvtZ0X/FTmg4PWvloI6bZtpT3N4Ai7KUuFgr0TLNzEmVn9vC
  5048  HlJyGIDIrQNSx58DpDu9hMTN/cbFKQBeHnzZo0mnFoo1Vpul3qgYlo1akUZr1uZO
  5049  IL9iQXGYr8ToHCjdd+1AKCMjmLUvvehryE9HW5AWcQziqrwRoGtNuskB7BbPNlyj
  5050  8tU4E5SKaToPk+ecRspdWm3KPSjKUK0YvRP8pVBZ3ZsYX3n5xHGWpOgbIQS8RgoF
  5051  HgLy6ERP
  5052  -----END PUBLIC KEY-----
  5053  `
  5054  
  5055  var rfc9881ExamplePublicKeyMLDSA87 = `
  5056  -----BEGIN PUBLIC KEY-----
  5057  MIIKMjALBglghkgBZQMEAxMDggohAJeSvOwvJDBoaoL8zzwvX/Zl53HXq0G5AljP
  5058  p+kOyXEkpzsyO5uiGrZNdnxDP1pSHv/hj4bkahiJUsRGfgSLcp5/xNEV5+SNoYlt
  5059  X+EZsQ3N3vYssweVQHS0IzblKDbeYdqUH4036misgQb6vhkHBnmvYAhTcSD3B5O4
  5060  6pzA5ue3tMmlx0IcYPJEUboekz2xou4Wx5VZ8hs9G4MFhQqkKvuxPx9NW59INfnY
  5061  ffzrFi0O9Kf9xMuhdDzRyHu0ln2hbMh2S2Vp347lvcv/6aTgV0jm/fIlr55O63dz
  5062  ti6Phfm1a1SJRVUYRPvYmAakrDab7S0lYQD2iKatXgpwmCbcREnpHiPFUG5kI2Hv
  5063  WjE3EvebxLMYaGHKhaS6sX5/lD0bijM6o6584WtEDWAY+eBNr1clx/GpP60aWie2
  5064  eJW9JJqpFoXeIK8yyLfiaMf5aHfQyFABE1pPCo8bgmT6br5aNJ2K7K0aFimczy/Z
  5065  x7hbrOLO06oSdrph7njtflyltnzdRYqTVAMOaru6v1agojFv7J26g7UdQv0xZ/Hg
  5066  +QhV1cZlCbIQJl3B5U7ES0O6fPmu8Ri0TYCRLOdRZqZlHhFs6+SSKacGLAmTH3Gr
  5067  0ik/dvfvwyFbqXgAA35Y5HC9u7Q8GwQ56vecVNk7RKrJ7+n74VGHTPsqZMvuKMxM
  5068  D+d3Xl2HDxwC5bLjxQBMmV8kybd5y3U6J30Ocf1CXra8LKVs4SnbUfcHQPMeY5dr
  5069  UMcxLpeX14xbGsJKX6NHzJFuCoP1w7Z1zTC4Hj+hC5NETgc5dXHM6Yso2lHbkFa8
  5070  coxbCxGB4vvTh7THmrGl/v7ONxZ693LdrRTrTDmC2lpZ0OnrFz7GMVCRFwAno6te
  5071  9qoSnLhYVye5NYooUB1xOnLz8dsxcUKG+bZAgBOvBgRddVkvwLfdR8c+2cdbEenX
  5072  xp98rfwygKkGLFJzxDvhw0+HRIhkzqe1yX1tMvWb1fJThGU7tcT6pFvqi4lAKEPm
  5073  Rba5Jp4r2YjdrLAzMo/7BgRQ998IAFPmlpslHodezsMs/FkoQNaatpp14Gs3nFNd
  5074  lSZrCC9PCckxYrM7DZ9zB6TqqlIQRDf+1m+O4+q71F1nslqBM/SWRotSuv/b+tk+
  5075  7xqYGLXkLscieIo9jTUp/Hd9K6VwgB364B7IgwKDfB+54DVXJ2Re4QRsP5Ffaugt
  5076  rU+2sDVqRlGP/INBVcO0/m2vpsyKXM9TxzoISdjUT33PcnVOcOG337RHu070nRpx
  5077  j2Fxu84gCVDgzpJhBrFRo+hx1c5JcxvWZQqbDKly2hxfE21Egg6mODwI87OEzyM4
  5078  54nFE/YYzFaUpvDO4QRRHh7XxfI6Hr/YoNuEJFUyQBVtv2IoMbDGQ9HFUbbz96mN
  5079  KbhcLeBaZfphXu4WSVvZBzdnIRW1PpHF2QAozz8ak5U6FT3lO0QITpzP9rc2aTkm
  5080  2u/rstd6pa1om5LzFoZmnfFtFxXMWPeiz7ct0aUekvglmTp0Aivn6etgVGVEVwlN
  5081  FJKPICFeeyIqxWtRrb7I2L22mDl5p+OiG0S10VGMqX0LUZX1HtaiQ1DIl0fh7epR
  5082  tEjj6RRwVM6SeHPJDbOU2GiI4H3/F3WT1veeFSMCIErrA74jhq8+JAeL0CixaJ9e
  5083  FHyfRSyM6wLsWcydtjoDV2zur+mCOQI4l9oCNmMKU8Def0NaGYaXkvqzbnueY1dg
  5084  8JBp5kMucAA1rCoCh5//Ch4b7FIgRxk9lOtd8e/VPuoRRMp4lAhS9eyXJ5BLNm7e
  5085  T14tMx+tX8KC6ixH6SMUJ3HD3XWoc1dIfe+Z5fGOnZ7WI8F10CiIxR+CwHqA1UcW
  5086  s8PCvb4unwqbuq6+tNUpNodkBvXADo5LvQpewFeX5iB8WrbIjxpohCG9BaEU9Nfe
  5087  KsJB+g6L7f9H92Ldy+qpEAT40x6FCVyBBUmUrTgm40S6lgQIEPwLKtHeSM+t4ALG
  5088  LlpJoHMas4NEvBY23xa/YH1WhV5W1oQAPHGOS62eWgmZefzd7rHEp3ds03o0F8sO
  5089  GE4p75vA6HR1umY74J4Aq1Yut8D3Fl+WmptCQUGYzPG/8qLI1omkFOznZiknZlaJ
  5090  6U25YeuuxWFcvBp4lcaFGslhQy/xEY1GB9Mu+dxzLVEzO+S00OMN3qeE7Ki+R+dB
  5091  vpwZYx3EcKUu9NwTpPNjP9Q014fBcJd7QX31mOHQ3eUGu3HW8LwX7HDjsDzcGWXL
  5092  Npk/YzsEcuUNCSOsbGb98dPmRZzBIfD1+U0J6dvPXWkOIyM4OKC6y3xjjRsmUKQw
  5093  jNFxtoVRJtHaZypu2FqNeMKG+1b0qz0hSXUoBFxjJiyKQq8vmALFO3u4vijnj+C1
  5094  zkX7t6GvGjsoqNlLeJDjyILjm8mOnwrXYCW/DdLwApjnFBoiaz187kFPYE0eC6VN
  5095  EdX+WLzOpq13rS6MHKrPMkWQFLe5EAGx76itFypSP7jjZbV3Ehv5/Yiixgwh6CHX
  5096  tqy0elqZXkDKztXCI7j+beXhjp0uWJOu/rt6rn/xoUYmDi8RDpOVKCE6ACWjjsea
  5097  q8hhsl68UJpGdMEyqqy34BRvFO/RHPyvTKpPd1pxbOMl4KQ1pNNJ1yC88TdFCvxF
  5098  BG/Bofg6nTKXd6cITkqtrnEizpcAWTBSjrPH9/ESmzcoh6NxFVo7ogGiXL8dy2Tn
  5099  ze4JLDFB+1VQ/j0N2C6HDleLK0ZQCBgRO49laXc8Z3OFtppCt33Lp6z/2V/URS4j
  5100  qqHTfh2iFR6mWNQKNZayesn4Ep3GzwZDdyYktZ9PRhIw30ccomCHw5QtXGaH32CC
  5101  g1k1o/h8t2Kww7HQ3aSmUzllvvG3uCkuJUwBTQkP7YV8RMGDnGlMCmTj+tkKEfU0
  5102  citu4VdPLhSdVddE3kiHAk4IURQxwGJ1DhbHSrnzJC8ts/+xKo1hB/qiKdb2NzsH
  5103  8205MrO9sEwZ3WTq3X+Tw8Vkw1ihyB3PHJwx5bBlaPl1RMF9wVaYxcs4mDqa/EJ4
  5104  P6p3OlLJ2CYGkL6eMVaqW8FQneo/aVh2lc1v8XK6g+am2KfWu+u7zaNnJzGYP4m8
  5105  WDHcN8PzxcVvrMaX88sgvV2629cC5UhErC9iaQH+FZ25Pf1Hc9j+c1YrhGwfyFbR
  5106  gCdihA68cteYi951y8pw0xnTLODMAlO7KtRVcj7gx/RzbObmZlxayjKkgcU4Obwl
  5107  kWewE9BCM5Xuuaqu4yBhSafVUNZ/xf3+SopcNdJRC2ZDeauPcoVaKvR6vOKmMgSO
  5108  r4nly0qI3rxTpZUQOszk8c/xis/wev4etXFqoeQLYxNMOjrpV5+of1Fb4JPC0p22
  5109  1rZck2YeAGNrWScE0JPMZxbCNC6xhT1IyFxjrIooVEYse3fn470erFvKKP+qALXT
  5110  SfilR62HW5aowrKRDJMBMJo/kTilaTER9Vs8AJypR8Od/ILZjrHKpKnL6IX3hvqG
  5111  5VvgYiIvi6kKl0BzMmsxISrs4KNKYA==
  5112  -----END PUBLIC KEY-----
  5113  `
  5114  
  5115  var rfc9881ExampleCertificateMLDSA44 = `
  5116  -----BEGIN CERTIFICATE-----
  5117  MIIPlDCCBgqgAwIBAgIUFZ/+byL9XMQsUk32/V4o0N44804wCwYJYIZIAWUDBAMR
  5118  MCIxDTALBgNVBAoTBElFVEYxETAPBgNVBAMTCExBTVBTIFdHMB4XDTIwMDIwMzA0
  5119  MzIxMFoXDTQwMDEyOTA0MzIxMFowIjENMAsGA1UEChMESUVURjERMA8GA1UEAxMI
  5120  TEFNUFMgV0cwggUyMAsGCWCGSAFlAwQDEQOCBSEA17K0clSq4NtF55MNSpjSyX2P
  5121  E5fReJ2voXAksxbpvslPyZRtQvGbeadBO7qjPnFJy0LtURVpOsBB+suYit61/g4d
  5122  hjEYSZW1ksOX0ilOLhT5CqQUujgmiZrEP0zMrLwm6agyuVEY1ctDPL75ZgsAE44I
  5123  F/YediyidMNq1VTrIqrBFi5KsBrLoeOMTv2PgLZbMz0PcuVd/nHOnB67mInnxWEG
  5124  wP1zgDoq7P6v3teqPLLO2lTRK9jNNqeM+XWUO0er0l6ICsRS5XQu0ejRqCr6huWQ
  5125  x1jBWuTShA2SvKGlCQ9ASWWX/KfYuVE/GhvabpUKqpjeRnUH1KT1pPBZkhZYLDVy
  5126  9i7aiQWrNYFnDEoCd3oz4Mpylf2PT/bRoKOnaD1l9fX3/GDaAj6CbF+SFEwC99G6
  5127  EHWYdVPqk2f8122ZC3+pnNRa/biDbUPkWfUYffBYR5cJoB6mg1k1+nBGCZDNPcG6
  5128  QBupS6sd3kGsZ6szGdysoGBI1MTu8n7hOpwX0FOPQw8tZC3CQVZg3niHfY2KvHJS
  5129  OXjAQuQoX0MZhGxEEmJCl2hEwQ5Va6IVtacZ5Z0MayqW05hZBx/cws3nUkp77a5U
  5130  6FsxjoVOj+Ky8+36yXGRKCcKr9HlBEw6T9r9n/MfkHhLjo5FlhRKDa9YZRHT2ZYr
  5131  nqla8Ze05fxg8rHtFd46W+9fib3HnZEFHZsoFudPpUUx79wcvnTUSIV/R2vNWPIc
  5132  C2U7O3ak4HamVZowJxhVXMY/dIWaq6uSXwI4YcqM0Pe62yhx9n1VMm10URNa1F9K
  5133  G6aRGPuyyKMO7JOS7z+XcGbJrdXHEMxkexUU0hfZWMcBfD6Q/SDATmdLkEhuk3Cj
  5134  GgAdMvRzl55JBnSefkd/oLdFCPil8jeDErg8Jb04jKCw//dHi69CtxZn7arJfEax
  5135  KWQ+WG5bBVoMIRlG1PNuZ1vtWGD6BCoxXZgmFk1qkjfDWl+/SVSQpb1N8ki5XEqu
  5136  d4S2BWcxZqxCRbW0sIKgnpMj5i8geMW3Z4NEbe/XNq06NwLUmwiYRJAKYYMzl7xE
  5137  GbMNepegs4fBkRR0xNQbU+Mql3rLbw6nXbZbs55Z5wHnaVfe9vLURVnDGncSK1IE
  5138  47XCGfFoixTtC8C4AbPm6C3NQ+nA6fQXRM2YFb0byIINi7Ej8E+s0bG2hd1aKxuN
  5139  u/PtkzZw8JWhgLTxktCLELj6u9/MKyRRjjLuoKXgyQTKhEeACD87DNLQuLavZ7w1
  5140  W5SUAl3HsKePqA46Lb/rUTKIUdYHgZjpSTZRrnh+wCUfkiujDp9R32Km1yeEzz3S
  5141  BTkxdt+jJKUSvZSXCjbdNKUUqGeR8Os28BRbCatkZRtKAxOymWEaKhxIiRYnWYdo
  5142  oxFAYLpEQ0ht9RUioc6IswmFwhb45u0XjdVnswSg1Mr7qIKig0LxepqiauWNtjAI
  5143  PSw1j99WbD9dYqQoVnvJ6ozpXKoPNUdLC/qPM5olCrTfzyCDvo7vvBBV4Y/hU3Du
  5144  yyYFZtg/8GshGq7EPKKbVMzQD4gVokZe8LRlFcx+QfMSTwnv/3OTCatYspoUWaAL
  5145  zlA46TjJZ49y6w5O5f2q5m2fhXP8l/xCtJWfS/i2HXhDPoawM11ukZHE2L9IezkF
  5146  wQjP1qwksM633LfPUfhNDtaHuV6uscUzwG8NlwI9kqcIJYN7Wbpst9TlawqHwgOG
  5147  KujzFbpZJejt76Z5NpoiAnZhUfFqll+fgeznbMBwtVhp5NuXhM8FyDCzJCyDEqNC
  5148  MEAwDgYDVR0PAQH/BAQDAgGGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFDKa
  5149  B7H6u0j1KjCfEaGJj4SOIyL/MAsGCWCGSAFlAwQDEQOCCXUAZ6iVH8MI4S9oZ2Ef
  5150  3CVL9Ly1FPf18v3rcvqOGgMAYWd7hM0nVZfYMVQZWWaxQWcMsOiBE0YNl4oaejiV
  5151  wRykGZV3XAnWTd60e8h8TovxyTJ/xK/Vw3hlU+F9YpsPJxQnZUgUMrXnzNC6YeUc
  5152  rT3Y+Vk4wjXr7O6vixauM2bzAMU1jse+nrI6HqGj2lhoZwTwSD+Wim5LH4lnCgE0
  5153  s2oY1scn3JsCexJ5R5OkjHq2bt9XrBgRORTADQoRtlplL0d3Eze/dDZm/Klby9OR
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  5155  zQfMqzTCyjCn091QkuFjDhQjzJ+sQ6G02w49lw8Kpm1ASuh7BLTPcuz7Z+rLpNjN
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  5164  IecO2sZxDbaiHhwFYRkt0BGRM2QM//IPMYeXhRa/1svmbOEHGxJG9LqTffkBs+01
  5165  Bp7r3/9lRZ+5t3eukpinpJrCT0AgeV3l3ujbzyCiQbboFDaPS4+kKvi+iS2eHjiu
  5166  S/WkfP1Go5jksxhkceJFNPsTmGCyXGPy2/haU9hkiMg9/wmuIKm/gxRfIBh/DoIr
  5167  1HWZjTuWcBGWTu2NuXeAVO/MbMtpB0u6mWYktHQcVxA2LenU+N5LEPbbHp+AmPQC
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  5171  n4HQBtuNe2ek7e72d+bayceJvlUAFXTu6oeX9/UuS7AhuY4giNzI1pNOgNwWXRxx
  5172  REmwvPrzJatZZ7cwfsKTezSSQlv2O4q70+2X2h0VtUg/pkz3GknE07S3ggDR9Qkg
  5173  bywQS/42luPIADbbAKXhHaBaX/TaD/uZVn+BOZ5sqWmxEbbHtvzlSea02J1Fk4Hq
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  5175  /WFFEproVsOru8G7iwXgt4QP8WRBSp2kTlQUbNTF3gxOTsslkUErTnvcRQ0GpK06
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  5182  KzsIRyW0ZbsaIsy0tgzzyhQvdoOoJn+2sKjcCzpfY6tgRD9sfucOm1sGet/cM5YP
  5183  iJYei2qKMeYcvACWiI8GNGY37OzhlikbleO4xXnfJwEOYx66NjTHZqkz1/TiCBGU
  5184  a7h+l/fnut6VfkxS1yZ2r5Gsdx7DUfNkEeKyzIMnYRA3zw3047lHqH714rV5VbE3
  5185  yYEQWvdtYlHMFM2z9DDta59RRATOemm7AA1fYsfodrV/QPJi5qPmvpHtCvfItbdL
  5186  Fg88Zh1zV5nV+0doUTXFVR9poJRE9fASlfU5qCJ9Jx5ISfvIkGz1fmfqXhUN9fE7
  5187  C0Evl7IYQLguTXFznRvsXvnliwR9Ut/g85JtXUiku4F2ThCBMHBDbov6p128kP+2
  5188  7LBgShM4IG80clxon8sWh6y0RLUz1MTamEYZKCXAPZzJoWhbzdNns/QTsjNP8wlu
  5189  vBRtdkb6w4Vrm6GO2BXY6pQUBPcoDuymAhfAF9TxRn860OQeMcT/NRsU9Z/8nRnz
  5190  3KbAuMTYsQ6qbjuLTDwfF9B4b4YUDQR22z8wlzCNLzgwFlGSI12xhf3ejRlwjGZJ
  5191  J/11Up4pEegRS/c+Li2OUvQr9Jxi8XGIdEJZY1T8oVpzDJf3C29gpARWSDAXrFn0
  5192  lgZHnqFyebeC1uDW8r/wGtYmI2EC53+FlOF5AFcH+3LzObZzerqwror4UMOA+B5c
  5193  QMU5vDv1LFcWLzvJHMXJfCHL5nVSukXCMawr+DbeKjrkseG0UX0gpUbQy0vHIH1K
  5194  2geD2xyl3TJ8jCaKOxb/Hu+KfkvtOCsh07TA+cnTV1WHR77svUcMErzHXWOFm8+U
  5195  omIXALO1EiDbpu38gERRLkC84eMhRBQjKcdmlcBFsmilt3cfIofypuhMRiIFjIke
  5196  00y2GEdQVsZGA/LX1HILqD4dEFDDQI2LPvCG5qe28HTfWspzsqK94IRESzm+Vmdp
  5197  IjNzkTyrPI06yMvxaHGajwUtLWCReJOG/uXhswbX7EviVYyqCR4vzDLDVXAulxo/
  5198  OsHaQhMX8xYOLXontx7SNCBlu/EEBww5QklKUldgd5igr7bDxsvZ6vHy/wcNIzY3
  5199  RUdidnuDkpSm1hIoLz4/SW2Tm6C2u9La5evu7xAfIy1ul8LE3/P0AAAAAAAAAAAA
  5200  AAAAABcmOEM=
  5201  -----END CERTIFICATE-----
  5202  `
  5203  
  5204  var rfc9881ExampleCertificateMLDSA65 = `
  5205  -----BEGIN CERTIFICATE-----
  5206  MIIVjTCCCIqgAwIBAgIUFZ/+byL9XMQsUk32/V4o0N44804wCwYJYIZIAWUDBAMS
  5207  MCIxDTALBgNVBAoTBElFVEYxETAPBgNVBAMTCExBTVBTIFdHMB4XDTIwMDIwMzA0
  5208  MzIxMFoXDTQwMDEyOTA0MzIxMFowIjENMAsGA1UEChMESUVURjERMA8GA1UEAxMI
  5209  TEFNUFMgV0cwggeyMAsGCWCGSAFlAwQDEgOCB6EASGg9kZeOMes93biwRzSC0riK
  5210  X2JZSf2PWKVh5pa9TCfQWzjbsu3wHmZO/YG+HqiTaIzmiqLVHFlY+LvG606J7mfS
  5211  wDIJVNVyEsrHIp/x1urwOSi9UVEfjYjYR3NsfeJzDVl45UEHExYJeIZ3Eb9VOaC/
  5212  xMNQwr5XK68O4uL7Fsz+oIAo2ZrEmuu3WTfdzhEc2rYv/zzqi6IjPR5W+8XFoecm
  5213  3mP63SrwFrEZF3+j2XGi2Sdxc/zlW2d0WvC3wh1Zfb65Pmoy80HEmlqL6eglCI0f
  5214  KqRRVdbIrhU2fk6wA7j994UQcZSXOfn/8JAj6vRRBNKoSkWQbu1GcaRNwo0nmHu1
  5215  XfaenoVh9hqApyaZUDhl/tm37nKo4XoZxAgUT0spr+9wMcOm2FcWELQsn0ISRaiP
  5216  GX4WgSsDEVm2W5aH5bPpNMUiWumKebpz0rOZ1zUQ7/rRnlO4RQ8LqPzhAS/ZjSYK
  5217  dKqqE/riSaAGscNPW6C4gvJjeCIvs28ig8JD8P/rXxu0FKCnDVXj1ApWtsvIiuHw
  5218  O3sogtmN7qKOFFyd7f2OrxzvLtlKiwUPiWT0bR6g0MKkPg3aYYKtv09u0XW2dCJX
  5219  hZvyLzpBfs8fnYkxe15TnVh68WueExPgRRT/pkuos/8rgyH4gRyz+wIsj2ROcKS4
  5220  Ci+/7mBKu3N5CR6o5sXHTfwCg2ZrQMB5OHACggShNr9dqVaOt5jTSQOL2wwR4DRF
  5221  54R8tQacdc8orGAcd5nZWCEN28siblGv758d5HsHOHPW0/l0Vr7eCFCC50opiyzU
  5222  j0swkxVfNmyPpgHGr4WN+jLAhJGyopiH+QM1lJpdbtqmeYgqOpXWv22XCiIfS509
  5223  jL84SvgarJXisylOBHiayDcnpdwEVZ+Wr0HYoFNRb+7uvFJ0brarKBngkQhxDYNf
  5224  AR+mMGWHKtM01c3/srIxBQfpL8mTrjF9qX9PMJza8PZ+2Z2QIVV2CDhJ+VOyRtf+
  5225  2z/bZ2eYUKWtQE5kFH+3z09q7d0Fr7S4NJaNH+iAFJYNzl2UIjZSbhKkeNaeX75p
  5226  cDELMIwGhFAYz8eyq0MKE6axrHuwLMy7PZEawvEQaGE/vgKb/c4Cz1zTiVDtcsg5
  5227  RO37x1YVr4f4ZMBR88VUVsVBKGOkDAbR2rVivf8FcbjTw5F7vTAIgLul6Zgjm5X6
  5228  kbfWQW1POYs6280wmD7TWStNnvfUI2/QD1DZiqU6I1rEFycg932WFyZymAz+j/el
  5229  pwJ4PtwroxsiWQFaES/H9GipwvlGQDkALTDvZ4tMt5i8EWIWv3qafBi6A7e1j9B1
  5230  FdMRUEnTYUvnoH50QwB1DfHSxYdTOJBZ6vw9eFzN0xwHZIvtwDpcO4rUbQZNWcE9
  5231  VzdHKfxOKVNi4qUZEgRTBCi8FSKvoo/1/hZV4wTKW8jCetDgxqOd1N8olWwUs4zJ
  5232  NoLO/kArvV6C0pxGTkTrXTe0j8Vo3+DMbo4WuuoF5RNVkPGSlOc+g2ewIW27gVAw
  5233  ud5VkT8IA5xCNRxZ5VFd1a+OCJoV5iXo9t7mOThsRkl9eiYyiHdN5YGn3pYptBtE
  5234  JBQfl4+4MxII797DxuDeObxXBj89zWxHA3PAiJHqKcvHzG1kg7iIkIOs6GqntRsc
  5235  LP5uKtGNl842+8VupC+ul+anrBFIZEeMNm3x67HnsRqQmFBP1Zdb3x9J3HAAK2PB
  5236  c5qdJj+61Ac/ap9sK4r0tMMyoQOgz/pd7rLQYso8IV/TYAJr58UWT0pEJO90lIgE
  5237  1m9GSHcyyCAseVR4ZHtOpx1ifAhgJMyjVKQfCHezjxmzd0rSCVyNpTsGniHHauLS
  5238  AH4WcZ7UAIDTNPfaUun1pZkEOcrwg6lbgz8CrRCgjBptDyYMAHKFvUovR3A6Wu9G
  5239  UofSU7GKwiUUMWIQ/1ZoFLEPh6KT1vGZ08OVmZDQwSaLT1DV+fzvu/I3vQwouAGC
  5240  1mWXQfFPEL+7IbuhKrYgqiOW9WwGhrTqkBeZAiQhay/orXbEqRSO75qGo2Naaqd7
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  5320  +BH4UnmFmQY7SGZyeHuDvFNzdNIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAYNDxMc
  5321  IA==
  5322  -----END CERTIFICATE-----
  5323  `
  5324  
  5325  var rfc9881ExampleCertificateMLDSA87 = `
  5326  -----BEGIN CERTIFICATE-----
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  5393  E0GYKgp+YoCQipTISdFrNvCYUKgWbTh6aT1dpFi2j93iPhIr857jdrXrBQ3R/K+i
  5394  KisjM3U9YKiZKrtiAiCSruWJ+bB4HArinzITmfqwNpX4TzgpwoF5B3nxfRzVonee
  5395  bQVNpxZk/JLWGQwwybcfZHsTRb6awtP7xvWtGu0auCG0f0DBIW6WPzvQ9TyO3ur4
  5396  IyvLvz0j/L8CjIRvaEq8M+s5ROIGEs6yYHikv3YR5gBAt63y4+rmL+/b4M4KMELU
  5397  4sFtIcwhQ8nVxDX9UjZaBr5mqX4AC4AP423FAO14RQVUdWS6qvHUMRvI/9afQtak
  5398  Qp7Z4j86AkDWPObDiSsAa9rJjLlc5kBXmijtHLHvMK8WGz2tl8S9pYhbqUjS7mMN
  5399  yJBUq1NErT6pDEgWFfh8FDUxmZ6Sw2sjSt9giOaPfAPOTI7qgKATCyQ9Dj31/VbT
  5400  5vTasSPJLeaf0iK591k/ARkc/YRv+w25A5gR6MpC2N8gMmnDFNf0x7nXwC4o0pqR
  5401  jDNuJlTGnVLzz9kOEhZs9VNrBn+f1pQS6fLm4YH1SH3He+NIFhs/H9wdIAwtE6iR
  5402  xDrb5J5FH5IaR6sWUv2ifKUsjFJI4ziifezeYJQJlgcNBnMjUH1vH0soWRGZerAq
  5403  ZWwfnzt8n7BD+BGIP+88BftaFwPOVndu5vKbY9R+efPMwoN9VFKSxCtCAk/Y4eiM
  5404  7QwNIQMMCbwfo794DMwYWGxat9Jql8JzSMFYH5rusNdtqs63fkm5m8SczmKq3xuW
  5405  D+Gd7ilJA69xJUte2EMhiEty2Z1XBVE944cXeZWwPrwMuuokaa7YOZw/DqObVfcU
  5406  hnTKj5cS3pARFNnJU9Nr7lJrtThgT6tETGaQEACYm+QWK0z0B3sJisyfXwz76q9Z
  5407  aX+Z/a6i8AUGBA6GTy8K1aCfawNu5Xdn8iV/qVHhgNP5XX6G3f61RDr8zUY9+Xa3
  5408  OCDRsUnw3zhunja9H5UiFQRQa2tzz7T7WW2Bl1R+mQrI3ZsDrNFCh9axwCe2ge4H
  5409  iQx9D6uf6ldqmEHZYMm3ZdUYYRZ2TsBBjYhzU2y70MO1CAkMXIPxJUaIbE0lrt0d
  5410  qwmfRr2r4ZuDW+lB0ptXweDrHXQdJf7SHri+n9xK1PH1keemtotpv7ctBzFB6tWe
  5411  MOJIN7tiVaX3V4YZEvfR19L1vSRkFKoVEYDu0BOagJYAdX6rS+hrlWgoI92/yZ4X
  5412  dd8lRTAGiC4nc/A+THYT2BcRYSCVIKJjrtdQd1zijq/j93Hs8GWWyx70vx65cfpU
  5413  6BsXiakzrQ8PZpDVBq/d4Nd6rslm3oLr17S8PlsQIN/f1rKNJGhP+08sc4Bfs8Pa
  5414  ZiqnICuEZsxGrfgbvcJwO8jTTblfUORj0U7VQyvDr9bejy4TpfoB3g+JG8s4d8GQ
  5415  DFBSuxqt42E3CYMqPdpzmUyF485u1UzPMYPB++hhYn4zR14Azf+8RWqaOYQu8L3+
  5416  auZWn9SzlaWd19WZGPVnjkD/2pHF5G6Pfu0RU3x2Bw+NbCFzEzw6mDn9WZiag8mA
  5417  90gU236/Vv6PKRqXqegczB/KBJwc3Ebs/gUJfv4yKUlcxcquKgYxfIFiYgCgqzVo
  5418  NYp79pKINC3l6Gf4ARGnjsjxKHApKe7RqGafZlPQjevLY3q0KT82x/l73Ypw88RV
  5419  jiTfoq/Dq2x+yXY30LYXY1H0X7Bso32t4T7rJxXsj5Rca/2XdiWGw7Gsunkq+VXl
  5420  k0i3GytZSmCMZ7n4kijyxGrMuNDO3+CQuQh3byLtwQ39NmR7AXdsmlCJ9QA/rb7S
  5421  gOrcTLbcpYE//xFTsMhwOxWIDYp7OPBYzB/Fv1xFDn3otyHHrWMq2+uwLFhku6nz
  5422  poWELCBoebvLhNANy3/pu/IGl5LTjRL/cYDAE0BtOB18Uf0Gyb4wjFC0crxJBZ0R
  5423  apK+BpDvFKtD0cIMdt7fdv/nnjo0bYm484Q6h9h4fAnVnFn0zd9Fx6sZQvxzjA/p
  5424  ztD8W1WX4ygVcojTBe4ToFRVjpEYTMaIIm46uh1HRZIR/G3eoaKCPRH+Ic+XAD6y
  5425  YfEV8n/YY9fBm4Gm8SC4RgvumvIXbF7sr3dbhVjm4DqW1NWcVLeavv5yI0vyDCiq
  5426  FsVUUzvfBNiROMwttD804e/zZSjj0w+ssoI/viPnGgg1f8ewHdGqNavX5TM1V+M9
  5427  AzKcvDrHAS4MaZ2yVQXDyhmKSycNG55hx3gtSu+tBr/73TC8AxY77Jm0OYQCibLi
  5428  bsEG2rSfyAVK90uOEWC6Si9bmS3iCskVPWWw/W31uMXfpeYsXcF0qX3JTr6uTyfx
  5429  AcJRXxsQAh/uwYLVRQIZjmxsAmVJiD3oUxTgHyxnGXJP2H26E8toIMVGRbK4rYzi
  5430  0U7PODhTgP137Rz5h68Ks5sKtIBtVYkMyZ2eFSg1GjPt0aQ4ET0q8cakrgwZqH0s
  5431  04E2zzLfJotOLnHaiX/i/hw7zb6HtNTSz5EirsbeoBtsbs5KReXWP6DlvrlhLTKJ
  5432  7R1VFe/4P1EhZipOHqacV3pY+aLU2G9L1aym22HEsp8vUnjg2wS0EQ8mYrU2jyGq
  5433  lXyCLwoDA+yfVv6QMPMC0WssS/Yh7ZGrOTZFuPnHkHxA7OVByKD/NM78uBO/GHsn
  5434  CvD+Q0ZpS+SxpGv4Bt90T6pIjZ1xEunFQeJzFrm75+8NFa/gb+gh5LXxQBJO4hXa
  5435  XOmhHYZb+DAXzfq2tAFOMfnaKTB43ffFElTi2pXxmlCNAdyPhGsWUtTeV6clHmOT
  5436  JA7RQwPjlfsYgHk0Xg+4U/h2zB7bQpDiaEzDUxHoYCxxpXvTpsmoBFkXJ7409vq3
  5437  I/SKGW/rxvD5s080T9lwZ5Cj5j0amJy8/fMPjrcfywJGNa3sVo/p05oZTIzS+79q
  5438  ExOQ3DEenFOBtVQkZrPGCo7rYh5uZTuLUv1d0/jQ8/4/DqlIsMeGLeJeBkwpRzWf
  5439  olvVijXlzjNndkbQh0FQtyUi7GJB0Z0G2wOAzQ6ovndufPfKDRvVnFWE/s4NuE0a
  5440  dnoWICnWguQGN9fDeMhHrhheLW3/5OFdVbr9DTX8jX/1b+X6fLwu4YM3GE3GL15Q
  5441  3sXNqQYp1sgan+2rJXkBnNSd12v5l/VDvCNZQacBB5Jf8JUVPsYQdyxf1STIDCKN
  5442  gOeB6GTildIMaJb1Aoh7GO0jB+jurqVuJkljk0llL1CVKOS4DqR316akU4B7JjYb
  5443  HspvzsTgbFBBZnQsEvikSjWf7ycn009HIB91pwVWKbKDl+V15Myd45rcCPQkELUj
  5444  L48ue4b98+HrvnNLesuknTCKYVHBNS3i4gsf7QYNXm+1jW8jsoR9xTtnUZuS26YE
  5445  5EjzmQVw8JvWX2hVRaAkYs0kxy8veYnL6HsMUtpS7qF3Cq7PfVaNCxvxrtPKj1jz
  5446  MimeORtEE7bG/roR1DJiF3oqRGzlr8WcSCiHgc+RZ/5aG/QmKcbQlMZTer3qWvS0
  5447  o6fx6KPoz/ECbd78KbrjnnUkk2SpU+xSIxu1gTqAs68l78pDgAp0xGZGMvbcGJzC
  5448  zZVHi1lPxXjqOhWEDpKCK3FmyGEdRkry6NG6pbyvHBZJWJp+sWuIm1Tgt87QuiWl
  5449  HjT00PFS++aeH0NoLYGl3gX4liixte8QAyfktPs6AjhXYrSrHnIdp/9hczxB1wce
  5450  gZ7ETAMxFHQzDpemwCSNHdmUGf64OYDyQiqefJBlRpxBA9dr23uFJMTiGRQJX+Je
  5451  6hcdiNzifZb3ZJpxfZQVugUTi2ompoX7do91VkiE+jjMm63ha5TbYtH52jzilPPp
  5452  FzAYVWdqfuez93vQfPuLU94wCCu6zfNPGeHbWq/3oxiO9AjGqckGtCtBGTAD0nOl
  5453  ppsMpYRLu8uMeBIzCqP5PhVbhoH57fui3bsBHK6TPnKzTREX0m1mWxlTItymNCm9
  5454  5Bg8AiVczwxZWHPSXExz2zB9MWXiwL4KYBbIeFpOg9WB7D6w9Z7Xo4Mj2Xcv3zaB
  5455  iu07SFw4ID+xsBn74K2pCZVDKR8Qb20tBXjFNzTRAZOJRShM5omjWz/5P+LUDgfj
  5456  ExDlXSHAnL0NtEpk6j8W7S3cJD711uXOtLCoHcBWSrIenYHLwWxWg7rdkRJdi01V
  5457  HzCRviEV6hIbIUOAM3hsW3a/yMDgch0PvXCQVB07246ZywKaE14u0fbEkFcuYl68
  5458  6Dx/oC3yHRaw+5PbgDz2Xr+xOAsbpYRxe2y2X+Yjats2E9SisEQyVN7IPJZ5rYTi
  5459  YJzUdfLZy5igb9/cxzqIvg+seMakLjUbaYvcMRclaN6uwglk1bxSlhLVgLoKe7y0
  5460  Jb/+G/PvGkDrdQTQRrohPgCgcU0RlQ6UsOJJ4+5uC2zbTqMrQCQBGmjlEWChM7Jf
  5461  mQNCcyVZFqkuo6lPsrz6/MCi6encL4wxld0O58cEuLzV2JYPK9IWD3/TBMEH0ns7
  5462  CYT1DeuBOkZ7Bz5jRxSaHPS1MyKJ1jXV0jwnMLMDaKXOPM66YVU0fw3yH2EQRFBb
  5463  zjgGvY7bqGMkY3xqkhCDC2NmAqg1J7Qe7mDy0t9MfGpXHuhRSEike+sKcgP45Lke
  5464  T6Z+owIv6dn5QUiEAW5m/khTYWfhLw3FUOgBAEwRqGxbeY4mypsfJYQWJK0jJxN5
  5465  CN0jul9l7rEHuL8eT0UhjkTxXnXa6N+eeL7fXmXLEiePFSTUWXwDfUCqEiKtUUBG
  5466  OT1ffil1nmEIe/Hx05B9LStvIbuKGnCYxTOol8vLiJG1ahvGWrhiW6tm824q/G6w
  5467  hM2yFZvlQ35cQ3pzjvgK2p6x0IsXPSKjpuTq5rKbMpqTwtxrR5k2Bufs/0BDGDHo
  5468  OqfGSgnn6ykbGp9nHBT/hRclGwQZtRcJW5f9cBCsWQY742UtJ0FCYuzcL5uRqKRv
  5469  pYO7RYg2XElC3YJDJo/J9fozQ8vhf8NTnSQ0HVguCkY1OUEueTUH5L5Ifr+cx+Jk
  5470  dr9eaO7JnmKA/urs8Ffy02AAiQ2rULt/hZsgmFfWeDDgama1Ncp2O6yXm57tMeK5
  5471  swlatkq5YcV/amZgyxcq7es9hbyb87n6j8RnPeKBPROO+F4NRW5QHlnbreda3Tas
  5472  8Ze69HL2NR8j54AhTbxpR6q7Zz4DPWGqYfmocoX4r7xb+HnJG+qWkvqTP3AQEW8C
  5473  izLeOXEANQ9YCOF2GmHwg2Gi3Iw88PqvERz0T9/RCI5CiGa+Oli19jjFx2L7J5Ct
  5474  6RS+DPYStrO97GuIrM9tGz14xBDAWuURfKECXTLMA6AW8zAjYBjWV5zQuZMLMXou
  5475  yqK0FJG4JqfSWSJv+DvDvGdmCkxcBiDzO6wDGWpFF65F8z7wHKU7VMzJa3LWjlfO
  5476  lIn7fepvuNyI+PK9UyvX0am7R29bxNyCTNJHQuVJv93WrokJX7IHOaZXyY7T4bMj
  5477  yw0yMsWOanzDyh0y7OGhDgXiJS42y2XU0UH/JGGEZbZlEpfNNNOPYcYvMfuOlwww
  5478  ZTIl7tStk6k0AtZ77tHmw2iu5730yoXlTrKxe72lAdDQlvXLTkdXXw+oxg+O078n
  5479  Zt5jdDQgFMXYxyqanZgc5scGn3X4Q/uXgZ0QSlhPErGjtIC5/XdAUraYJZNo6lu3
  5480  r2dYCUIfo6xun+6+QnoT7OXpb+hc04Ky4QYHq5EYd60H50ogBiHTzC2QLcqDbpK4
  5481  rnVLSDqKkbgKCwwRPEiw8SU8WZu5zwG9ygURLGN4obLeSQU8UHyCteEbbpGrstXp
  5482  AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQMEhUdHiUs
  5483  -----END CERTIFICATE-----
  5484  `
  5485  
  5486  const ipv4MappedSANCert = "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"
  5487  
  5488  const ipv4MappedConstraintCert = "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"
  5489  
  5490  func TestIPv4MappedIPsParse(t *testing.T) {
  5491  	for _, tc := range []struct {
  5492  		name string
  5493  		der  string
  5494  	}{
  5495  		{
  5496  			name: "SAN",
  5497  			der:  ipv4MappedSANCert,
  5498  		},
  5499  		{
  5500  			name: "constraint",
  5501  			der:  ipv4MappedConstraintCert,
  5502  		},
  5503  	} {
  5504  		t.Run(tc.name, func(t *testing.T) {
  5505  			der, err := hex.DecodeString(tc.der)
  5506  			if err != nil {
  5507  				t.Fatalf("hex.DecodeString() unexpected error: %v", err)
  5508  			}
  5509  
  5510  			expectedErrSuffix := "IPv4-mapped IPv6 address"
  5511  
  5512  			_, err = ParseCertificate(der)
  5513  			if err == nil {
  5514  				t.Fatal("expected error when parsing certificate containing IPv4-mapped IPv6 address")
  5515  			} else if !strings.Contains(err.Error(), expectedErrSuffix) {
  5516  				t.Fatalf("unexpected error: %v, want suffix: %s", err, expectedErrSuffix)
  5517  			}
  5518  		})
  5519  	}
  5520  }
  5521  
  5522  func TestIPv4MappedIPsSANCreate(t *testing.T) {
  5523  	tmpl := Certificate{
  5524  		SerialNumber: big.NewInt(1),
  5525  		NotBefore:    time.Now().Add(-24 * time.Hour),
  5526  		NotAfter:     time.Now().Add(24 * time.Hour),
  5527  		DNSNames:     []string{"localhost"},
  5528  		IPAddresses:  []net.IP{net.ParseIP("::ffff:192.0.2.1")},
  5529  	}
  5530  
  5531  	der, err := CreateCertificate(rand.Reader, &tmpl, &tmpl, rsaPrivateKey.Public(), rsaPrivateKey)
  5532  	if err != nil {
  5533  		t.Fatalf("unexpected error creating certificate: %v", err)
  5534  	}
  5535  
  5536  	cert, err := ParseCertificate(der)
  5537  	if err != nil {
  5538  		t.Fatalf("unexpected error parsing certificate: %v", err)
  5539  	}
  5540  
  5541  	if len(cert.IPAddresses) != 1 {
  5542  		t.Fatalf("unexpected number of IP addresses in parsed certificate, got %d, want 1", len(cert.IPAddresses))
  5543  	}
  5544  
  5545  	if len(cert.IPAddresses[0]) != net.IPv4len {
  5546  		t.Fatalf("unexpected IP address length in parsed certificate, got %d, want %d", len(cert.IPAddresses[0]), net.IPv4len)
  5547  	}
  5548  }
  5549  
  5550  func TestIPv4MappedIPsConstraintCreate(t *testing.T) {
  5551  	_, mappedNetwork, _ := net.ParseCIDR("::ffff:192.0.2.1/128")
  5552  	tmpl := Certificate{
  5553  		SerialNumber:      big.NewInt(1),
  5554  		NotBefore:         time.Now().Add(-24 * time.Hour),
  5555  		NotAfter:          time.Now().Add(24 * time.Hour),
  5556  		DNSNames:          []string{"localhost"},
  5557  		PermittedIPRanges: []*net.IPNet{mappedNetwork},
  5558  	}
  5559  
  5560  	_, err := CreateCertificate(rand.Reader, &tmpl, &tmpl, rsaPrivateKey.Public(), rsaPrivateKey)
  5561  	if err == nil {
  5562  		t.Fatalf("unexpected success creating certificate with IPv4-mapped IPv6 address constraint")
  5563  	}
  5564  }
  5565  
  5566  // RFC 9935, Appendix C.1.2.1.
  5567  var rfc9935ExamplePrivateKeyMLKEM768 = testingKey(`
  5568  -----BEGIN TESTING KEY-----
  5569  MFQCAQAwCwYJYIZIAWUDBAQCBEKAQAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ
  5570  GhscHR4fICEiIyQlJicoKSorLC0uLzAxMjM0NTY3ODk6Ozw9Pj8=
  5571  -----END TESTING KEY-----
  5572  `)
  5573  
  5574  // RFC 9935, Appendix C.1.3.1.
  5575  var rfc9935ExamplePrivateKeyMLKEM1024 = testingKey(`
  5576  -----BEGIN TESTING KEY-----
  5577  MFQCAQAwCwYJYIZIAWUDBAQDBEKAQAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ
  5578  GhscHR4fICEiIyQlJicoKSorLC0uLzAxMjM0NTY3ODk6Ozw9Pj8=
  5579  -----END TESTING KEY-----
  5580  `)
  5581  
  5582  // RFC 9935, Appendix C.1.2.2.
  5583  var rfc9935ExamplePrivateKeyMLKEM768Expanded = testingKey(`
  5584  -----BEGIN TESTING KEY-----
  5585  MIIJeAIBADALBglghkgBZQMEBAIEgglkBIIJYCfSp38zdW9hII7xE6voJZWHPUq8
  5586  cw5bXWeVKb9qTOtjg0JyMahhL0FVBRWsulLkjq2LlCgzu+aGXRPRSnnSxcPgfwoF
  5587  bY3nqt/KugWMSTyAs3yrjFYnU7s7prbsgpf4heqnVA1TABWoRAblWxNmtXfiNs5Y
  5588  om2KHrWkTVQjI8IWfZv0pH+YVpnKBbrkO43sYX8COAo4kK/UuMfsft4mVToCXzzl
  5589  vF16YhMDBCNcsa1INrVmtbhjvZvbRaKESnBHtsjTg+RIUl4EC03IorSMbDfJbWLU
  5590  Pz/YjiiBxAogXJ4kj2UrWSeBp3n4aIDyoUe2eGPzkcwaWpCMAJXgchIpHi74o265
  5591  qcDGBzIls0cDpK8Ek4LEdXPaaP3pJFrUROMbH721IfH2Hze8DO8pIGfmcNKKH/2Q
  5592  T28RkKmWkYoTA3psq/PDc7+Cls03qzO6d0aAnMP4reGzY5vVe/zGllCqrx3hmPxM
  5593  BGMpnlLEYXgMxCj8XQSlxRhQy6bCpSdDQGdXk92gm+RMKeY5XGX4XSoKfG30EeaR
  5594  Gx8stsNRzS6HX1G2OL53YJfpPi8rL4PaC+70qoW6nnY6tkUCoMpSIunqtbO3CI7V
  5595  IGDoyCablDpxqwrhxbG2h9LgGc+ANrz5v257rDqqNuQWYPqkVA8mSM2ToYnsXC3q
  5596  cLrKqk/8kG+QgQ6htnvyTyx4z2uogarqYcBlK/+VsbrkQm0Xc7nMLKgsIeOMY247
  5597  HFIyRJhrC+ioP13Vzy1Udi+zxev1m46IUwKxzkcDPt92D04Cm+QLbVZrGd11is1c
  5598  dBKHgTEkT5AXLFPyZmPCHZBTAdSLr5HJF8x3eenYgCzBDYmjcFCZoq06OoiWdDwR
  5599  RGmAk74lfay2bceFIouRLI2WXRSqKDQsOsSpP++lMrIJRd3BAgE5wU1ji5CMTd3p
  5600  oGRblbLkQU1Au3nwRBODDxWoc8KLtwWcJ0EAIBXyBAjwWOcVsL+ZW1OAt90yWgVq
  5601  uX5lmivgzfbDNzHGg6Y0t3HoySoTmu5LsOSccHcyHUL8GZ98HymMpiXSI6XCY6A8
  5602  xIFZt4EmZbeGN+ThhyCywpprmfQnZqTLxNxQi6lLqDuJw6XHj4uya72beb64yBgk
  5603  kPV5PuW5YBO3S34WninRYvExVGTqfXJDbYm3VRYRksgcwt0ci4u6eV70Ju4cwBw3
  5604  qqN7LP+LCjeLR8vQtNSTmM/CcSlZaZ+gvYzYRmasxh9UG4T6lrnIVOTnXpFErdtE
  5605  uFZqV9+7VFzkI8AzRvKywakXgNFSqN4aTUycrN5zksmWiIzCOZwCw4szU634rKso
  5606  OSTaAKBbduc4xyyTDWy6Ca4WiZD6of7yIm54CGHUFu/0AvT3WfxkirH5cQAQkIf5
  5607  bksUjSyzHkgFMU6gzZX7Aj6sDZiUdLpCAde0HSb1OUshfupbNLcaizeTHA5ZQnHg
  5608  t8czJXJAIz57pzVgPkJah97ncHnjfLKKIXZFlM5TUNjaK2KgcXSUMDLsicmICcc7
  5609  ZCPTDB0oOnZqZNiXA8PWKbSXgo1IMgw0YhB5eimKoQ1CPI3aBp0CvFnmzfA6CWuL
  5610  PaTKubgMpKFJB2cszvHsT68jSgvFt+nUc/KzEzs7JqHRdctnp4BZGWmcAvdlMbmc
  5611  X4kYBwS7TKRTXFuJcmecZgoHxeUUuHAJyGLrj1FXaV77P8QKne9rgcHMAqJJrk8J
  5612  StDZvTSFwcHGgIBSCnyMYyAyzuc4FU5cUXbAfaVgJHdqQw/nbqz2ZaP3uDIQIhW8
  5613  gvEJOcg1VwQzao+sHYHkuwSFql18dNa1m75cXpcqDYusQRtVtdVVfNaAoaj3G064
  5614  a8SMmgUJcxpUvZ1ykLJ5Y+Q3Lcmxmc/crAsBrNKKYjlREuTENkjWIsSMgjTQFEDo
  5615  zDdskn8jpa/JrAR0xmInTkJFJchVLs47P+JlFt6QG8fVFb3olVjmJslcgLkzQvgB
  5616  AATznmxslIccXjRMqzlmyDX5qWpZr9McQChrOLHBp4RwurlHUYk0RTzoZzapGfH1
  5617  ptUQqG9UVPw5gMtcdlvSvV97NrFBDWY1yM60fE3aDXaijqyTnHHDAkgEhmxxYmZY
  5618  RCFjwsIhF+UKzvzmN4qYVlIwKk7wws4Mxxa3eW4ray43d9+hrD2iWaMbWptTD4y2
  5619  OKgaYqwwGEmrr5WnMBvaMAaJCb/bfmfbzLs4pVUaJbGjoPaFdIrVdT2IgPABbGJ0
  5620  hhZjhMVXH+I2WQA2TQODEeLYdds2ZoaTK17GAkMKNp6Hpu9cM4eGZXglvUwFes65
  5621  I+sJNeaQXmO0ztf4CFenc91ksVDSZhLqmsEgUtsgF78YQ8y0sygbaQ3HKK36hcAC
  5622  gbjjwJKHM1+Fa0/CiS9povV5Ia2gGRTECYhmLVd2lmKnhjUbm2ZJPat5WU2YbeIQ
  5623  DWW6D/TqWLgVONJKRDWiWPrCVASqf0H2WLE4UGXhWNy2ARVzJyD0BFmqrBXkBpU6
  5624  kKxSmX0czQcAYO/GXbnmUzVEZ/rVbscTyG51QMQjrPJmn1L6b0rGiI2HHvPoR8Ap
  5625  qKr7uS4XskqgebH0GbphdbRCr7EZCdSla3CgM1soc5IYqnyTSOLDwvPrPRWkHmQX
  5626  wN2Uv+shQZsxGnuxOhgLvoMyGKmmsXRHzIXyJYWVh6cwdwSay8/UTQ8CVDjhXRU4
  5627  Jw1Ybhv4MZKpRZz2PA6XL4UpdnmDHs8SFQmFHLg0D28Qew+hoO/Rs2qBibwIXE9c
  5628  t4TlU/QbkY+AOXzhlW94W+43fKmqi+aZitowwmt8PYxrVSVMyWIDsgxCruCsTh67
  5629  QI5JqeP4edCrB4XrcCVCXRMFoimcAV4SDRY7DhlJTOVyU9AkbRgnRcuBl6t0OLPB
  5630  u3lyvsWjBuujVnhVwBRpn+9lrlTHcKDYXBhADPZCrtxmB3e6SxOFAr1aeBL2IfhK
  5631  SClrmN1DIrbxWCi4qPDgCoukSlPDqLFDVxsHQKvVZ9rxzenHnCBLbV4lnRdmoxu7
  5632  y05qBc9FAhdrMBwcL0Ekd1AVe87IXoCbMKTWDXdHzdD1uZqoyCaYdRd5OqqAgKCx
  5633  JKhVjfcrvje3X07btr6CFtbGM/srIoDiURPYaV5DSBw+6zl+sZJQUim2eiAeqJPD
  5634  4ssy2ovDQvpN6gV4ok4W2Pj5ODqVt3BQ9Nn9L1cz7sHWPvPCPr+ZGBc2aacgISIj
  5635  JCUmJygpKissLS4vMDEyMzQ1Njc4OTo7PD0+Pw==
  5636  -----END TESTING KEY-----
  5637  `)
  5638  
  5639  // RFC 9935, Appendix C.1.2.3.
  5640  var rfc9935ExamplePrivateKeyMLKEM768Both = testingKey(`
  5641  -----BEGIN TESTING KEY-----
  5642  MIIJvgIBADALBglghkgBZQMEBAIEggmqMIIJpgRAAAECAwQFBgcICQoLDA0ODxAR
  5643  EhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMDEyMzQ1Njc4OTo7PD0+PwSC
  5644  CWAn0qd/M3VvYSCO8ROr6CWVhz1KvHMOW11nlSm/akzrY4NCcjGoYS9BVQUVrLpS
  5645  5I6ti5QoM7vmhl0T0Up50sXD4H8KBW2N56rfyroFjEk8gLN8q4xWJ1O7O6a27IKX
  5646  +IXqp1QNUwAVqEQG5VsTZrV34jbOWKJtih61pE1UIyPCFn2b9KR/mFaZygW65DuN
  5647  7GF/AjgKOJCv1LjH7H7eJlU6Al885bxdemITAwQjXLGtSDa1ZrW4Y72b20WihEpw
  5648  R7bI04PkSFJeBAtNyKK0jGw3yW1i1D8/2I4ogcQKIFyeJI9lK1kngad5+GiA8qFH
  5649  tnhj85HMGlqQjACV4HISKR4u+KNuuanAxgcyJbNHA6SvBJOCxHVz2mj96SRa1ETj
  5650  Gx+9tSHx9h83vAzvKSBn5nDSih/9kE9vEZCplpGKEwN6bKvzw3O/gpbNN6szundG
  5651  gJzD+K3hs2Ob1Xv8xpZQqq8d4Zj8TARjKZ5SxGF4DMQo/F0EpcUYUMumwqUnQ0Bn
  5652  V5PdoJvkTCnmOVxl+F0qCnxt9BHmkRsfLLbDUc0uh19Rtji+d2CX6T4vKy+D2gvu
  5653  9KqFup52OrZFAqDKUiLp6rWztwiO1SBg6Mgmm5Q6casK4cWxtofS4BnPgDa8+b9u
  5654  e6w6qjbkFmD6pFQPJkjNk6GJ7Fwt6nC6yqpP/JBvkIEOobZ78k8seM9rqIGq6mHA
  5655  ZSv/lbG65EJtF3O5zCyoLCHjjGNuOxxSMkSYawvoqD9d1c8tVHYvs8Xr9ZuOiFMC
  5656  sc5HAz7fdg9OApvkC21WaxnddYrNXHQSh4ExJE+QFyxT8mZjwh2QUwHUi6+RyRfM
  5657  d3np2IAswQ2Jo3BQmaKtOjqIlnQ8EURpgJO+JX2stm3HhSKLkSyNll0Uqig0LDrE
  5658  qT/vpTKyCUXdwQIBOcFNY4uQjE3d6aBkW5Wy5EFNQLt58EQTgw8VqHPCi7cFnCdB
  5659  ACAV8gQI8FjnFbC/mVtTgLfdMloFarl+ZZor4M32wzcxxoOmNLdx6MkqE5ruS7Dk
  5660  nHB3Mh1C/BmffB8pjKYl0iOlwmOgPMSBWbeBJmW3hjfk4YcgssKaa5n0J2aky8Tc
  5661  UIupS6g7icOlx4+Lsmu9m3m+uMgYJJD1eT7luWATt0t+Fp4p0WLxMVRk6n1yQ22J
  5662  t1UWEZLIHMLdHIuLunle9CbuHMAcN6qjeyz/iwo3i0fL0LTUk5jPwnEpWWmfoL2M
  5663  2EZmrMYfVBuE+pa5yFTk516RRK3bRLhWalffu1Rc5CPAM0byssGpF4DRUqjeGk1M
  5664  nKzec5LJloiMwjmcAsOLM1Ot+KyrKDkk2gCgW3bnOMcskw1sugmuFomQ+qH+8iJu
  5665  eAhh1Bbv9AL091n8ZIqx+XEAEJCH+W5LFI0ssx5IBTFOoM2V+wI+rA2YlHS6QgHX
  5666  tB0m9TlLIX7qWzS3Gos3kxwOWUJx4LfHMyVyQCM+e6c1YD5CWofe53B543yyiiF2
  5667  RZTOU1DY2itioHF0lDAy7InJiAnHO2Qj0wwdKDp2amTYlwPD1im0l4KNSDIMNGIQ
  5668  eXopiqENQjyN2gadArxZ5s3wOglriz2kyrm4DKShSQdnLM7x7E+vI0oLxbfp1HPy
  5669  sxM7Oyah0XXLZ6eAWRlpnAL3ZTG5nF+JGAcEu0ykU1xbiXJnnGYKB8XlFLhwCchi
  5670  649RV2le+z/ECp3va4HBzAKiSa5PCUrQ2b00hcHBxoCAUgp8jGMgMs7nOBVOXFF2
  5671  wH2lYCR3akMP526s9mWj97gyECIVvILxCTnINVcEM2qPrB2B5LsEhapdfHTWtZu+
  5672  XF6XKg2LrEEbVbXVVXzWgKGo9xtOuGvEjJoFCXMaVL2dcpCyeWPkNy3JsZnP3KwL
  5673  AazSimI5URLkxDZI1iLEjII00BRA6Mw3bJJ/I6WvyawEdMZiJ05CRSXIVS7OOz/i
  5674  ZRbekBvH1RW96JVY5ibJXIC5M0L4AQAE855sbJSHHF40TKs5Zsg1+alqWa/THEAo
  5675  azixwaeEcLq5R1GJNEU86Gc2qRnx9abVEKhvVFT8OYDLXHZb0r1fezaxQQ1mNcjO
  5676  tHxN2g12oo6sk5xxwwJIBIZscWJmWEQhY8LCIRflCs785jeKmFZSMCpO8MLODMcW
  5677  t3luK2suN3ffoaw9olmjG1qbUw+MtjioGmKsMBhJq6+VpzAb2jAGiQm/235n28y7
  5678  OKVVGiWxo6D2hXSK1XU9iIDwAWxidIYWY4TFVx/iNlkANk0DgxHi2HXbNmaGkyte
  5679  xgJDCjaeh6bvXDOHhmV4Jb1MBXrOuSPrCTXmkF5jtM7X+AhXp3PdZLFQ0mYS6prB
  5680  IFLbIBe/GEPMtLMoG2kNxyit+oXAAoG448CShzNfhWtPwokvaaL1eSGtoBkUxAmI
  5681  Zi1XdpZip4Y1G5tmST2reVlNmG3iEA1lug/06li4FTjSSkQ1olj6wlQEqn9B9lix
  5682  OFBl4VjctgEVcycg9ARZqqwV5AaVOpCsUpl9HM0HAGDvxl255lM1RGf61W7HE8hu
  5683  dUDEI6zyZp9S+m9KxoiNhx7z6EfAKaiq+7kuF7JKoHmx9Bm6YXW0Qq+xGQnUpWtw
  5684  oDNbKHOSGKp8k0jiw8Lz6z0VpB5kF8DdlL/rIUGbMRp7sToYC76DMhipprF0R8yF
  5685  8iWFlYenMHcEmsvP1E0PAlQ44V0VOCcNWG4b+DGSqUWc9jwOly+FKXZ5gx7PEhUJ
  5686  hRy4NA9vEHsPoaDv0bNqgYm8CFxPXLeE5VP0G5GPgDl84ZVveFvuN3ypqovmmYra
  5687  MMJrfD2Ma1UlTMliA7IMQq7grE4eu0COSanj+HnQqweF63AlQl0TBaIpnAFeEg0W
  5688  Ow4ZSUzlclPQJG0YJ0XLgZerdDizwbt5cr7Fowbro1Z4VcAUaZ/vZa5Ux3Cg2FwY
  5689  QAz2Qq7cZgd3uksThQK9WngS9iH4Skgpa5jdQyK28VgouKjw4AqLpEpTw6ixQ1cb
  5690  B0Cr1Wfa8c3px5wgS21eJZ0XZqMbu8tOagXPRQIXazAcHC9BJHdQFXvOyF6AmzCk
  5691  1g13R83Q9bmaqMgmmHUXeTqqgICgsSSoVY33K743t19O27a+ghbWxjP7KyKA4lET
  5692  2GleQ0gcPus5frGSUFIptnogHqiTw+LLMtqLw0L6TeoFeKJOFtj4+Tg6lbdwUPTZ
  5693  /S9XM+7B1j7zwj6/mRgXNmmnICEiIyQlJicoKSorLC0uLzAxMjM0NTY3ODk6Ozw9
  5694  Pj8=
  5695  -----END TESTING KEY-----
  5696  `)
  5697  
  5698  // RFC 9935, Appendix C.2.
  5699  var rfc9935ExamplePublicKeyMLKEM768 = `
  5700  -----BEGIN PUBLIC KEY-----
  5701  MIIEsjALBglghkgBZQMEBAIDggShACmKoQ1CPI3aBp0CvFnmzfA6CWuLPaTKubgM
  5702  pKFJB2cszvHsT68jSgvFt+nUc/KzEzs7JqHRdctnp4BZGWmcAvdlMbmcX4kYBwS7
  5703  TKRTXFuJcmecZgoHxeUUuHAJyGLrj1FXaV77P8QKne9rgcHMAqJJrk8JStDZvTSF
  5704  wcHGgIBSCnyMYyAyzuc4FU5cUXbAfaVgJHdqQw/nbqz2ZaP3uDIQIhW8gvEJOcg1
  5705  VwQzao+sHYHkuwSFql18dNa1m75cXpcqDYusQRtVtdVVfNaAoaj3G064a8SMmgUJ
  5706  cxpUvZ1ykLJ5Y+Q3Lcmxmc/crAsBrNKKYjlREuTENkjWIsSMgjTQFEDozDdskn8j
  5707  pa/JrAR0xmInTkJFJchVLs47P+JlFt6QG8fVFb3olVjmJslcgLkzQvgBAATznmxs
  5708  lIccXjRMqzlmyDX5qWpZr9McQChrOLHBp4RwurlHUYk0RTzoZzapGfH1ptUQqG9U
  5709  VPw5gMtcdlvSvV97NrFBDWY1yM60fE3aDXaijqyTnHHDAkgEhmxxYmZYRCFjwsIh
  5710  F+UKzvzmN4qYVlIwKk7wws4Mxxa3eW4ray43d9+hrD2iWaMbWptTD4y2OKgaYqww
  5711  GEmrr5WnMBvaMAaJCb/bfmfbzLs4pVUaJbGjoPaFdIrVdT2IgPABbGJ0hhZjhMVX
  5712  H+I2WQA2TQODEeLYdds2ZoaTK17GAkMKNp6Hpu9cM4eGZXglvUwFes65I+sJNeaQ
  5713  XmO0ztf4CFenc91ksVDSZhLqmsEgUtsgF78YQ8y0sygbaQ3HKK36hcACgbjjwJKH
  5714  M1+Fa0/CiS9povV5Ia2gGRTECYhmLVd2lmKnhjUbm2ZJPat5WU2YbeIQDWW6D/Tq
  5715  WLgVONJKRDWiWPrCVASqf0H2WLE4UGXhWNy2ARVzJyD0BFmqrBXkBpU6kKxSmX0c
  5716  zQcAYO/GXbnmUzVEZ/rVbscTyG51QMQjrPJmn1L6b0rGiI2HHvPoR8ApqKr7uS4X
  5717  skqgebH0GbphdbRCr7EZCdSla3CgM1soc5IYqnyTSOLDwvPrPRWkHmQXwN2Uv+sh
  5718  QZsxGnuxOhgLvoMyGKmmsXRHzIXyJYWVh6cwdwSay8/UTQ8CVDjhXRU4Jw1Ybhv4
  5719  MZKpRZz2PA6XL4UpdnmDHs8SFQmFHLg0D28Qew+hoO/Rs2qBibwIXE9ct4TlU/Qb
  5720  kY+AOXzhlW94W+43fKmqi+aZitowwmt8PYxrVSVMyWIDsgxCruCsTh67QI5JqeP4
  5721  edCrB4XrcCVCXRMFoimcAV4SDRY7DhlJTOVyU9AkbRgnRcuBl6t0OLPBu3lyvsWj
  5722  BuujVnhVwBRpn+9lrlTHcKDYXBhADPZCrtxmB3e6SxOFAr1aeBL2IfhKSClrmN1D
  5723  IrbxWCi4qPDgCoukSlPDqLFDVxsHQKvVZ9rxzenHnCBLbV4lnRdmoxu7y05qBc9F
  5724  AhdrMBwcL0Ekd1AVe87IXoCbMKTWDXdHzdD1uZqoyCaYdRd5OqqAgKCxJKhVjfcr
  5725  vje3X07btr6CFtbGM/srIoDiURPYaV5DSBw+6zl+sZJQUim2eiAeqJPD4ssy2ovD
  5726  QvpN6gV4
  5727  -----END PUBLIC KEY-----
  5728  `
  5729  
  5730  // RFC 9935, Appendix C.2.
  5731  var rfc9935ExamplePublicKeyMLKEM1024 = `
  5732  -----BEGIN PUBLIC KEY-----
  5733  MIIGMjALBglghkgBZQMEBAMDggYhAEuUwpRQERGRgjs1FMmsHqPZglzLhjk6LfsE
  5734  ZU+iGS03v60cSXxlAu7lyoCnO/zguvWlSohYWkATl6PSMvQmp6+wgrwhpEMXCQ6q
  5735  x1ksLqiKZTxEkeoZOTEzX1LpiaPEzFbZxVNzLVfEcPtBq3WbZdLQREU4L82cTjRK
  5736  ESj6nhHgQ1jhku0BSyMjKn7isi4jcX9EER7jNXU5nDdkbamBPsmyEq/pTl3FwjMK
  5737  cpTMH0I0ptP7tPFoWriJLASssXzRwXDXsGEbanF2x5TMjGf1X8kjwq0gMQDzZZkY
  5738  gsMCQ9d4E4Q7XsfJZAMiY3BgkuzwDHUWvmTkWYykImwGm7XmfkF1zyKGyN1cSIps
  5739  WGHzG6oL0CaUcOi1Ud07zTjIbBL5zbF2x33ItsAqcB9HiQLIVT9pTA2CcntMSlws
  5740  EEEhKqEnSAi4IRGzd+x1IU6bGXj3YATUE52YYT9LjpjSCve1NAc6UJqVm3p1ZPm0
  5741  DKIYv2GCkyCoUCAXlU0yjXrGx2nsKXAHVuewaFs0DV4RgFlQSkmppQoQGY6xCleE
  5742  Z460J9e0uruVUpM7BiiXlz4TGOrwoOrDdYSmVAGxcD4EKszYN1MUg/JBytzRwdN4
  5743  EZ5pRCnbGZrIkeTFNDdXCFuzrng2ZzUMRFjZdnLoYegLHSZ5UQ6jpvI2DHekaULH
  5744  oGpVTSKAgMhLR67xTbF2IMsWwGqzChvkzacIK+n4fpwhHEaRY0mluo6qUgHHKUo8
  5745  CIW1O2V0UhCIJexkbJCgRhIyTufQMa/lNDEyy+9ntu+xpewoCbdzU4znez2LBOsL
  5746  PCJWAR5McWwZqLoHUr9xSSEXZJ8GFcMpD8KaRv3kvVLbkobWAziCRCWcFaesK2QK
  5747  YMwDN2pYQaP7ikc1aPqbGiZyFfNMAWl7Dw5icXXXIQW3cHwpueYUvcM6b2yBipU3
  5748  C0J4gte0dnlqnsbrmTJ0zZsjkagrpF4zk9Lprpchyp1sG5iLWCdxP5CmWF3pQzUo
  5749  wCsDzhC7X3IBOND7tMMMEma5GOUpJd/hezf5XSK8pU9HWRmshZCYwPDQisWHXvKb
  5750  Vv0UHm7xX3AKC2bzlZXFiBdzc8RmmyG8Bx5MOqXwtKMbYljzXaJKw80px/IJJBDF
  5751  B4NVsTj7U6a5rm4LnAgkPnuqRcRzduuMfxPUz1Gqc2+jFUDJJB83DaVEv5+cKNml
  5752  fi8qfKlaTktGbmQas7zHat8ROdVnpvErUvOmXn7AquJryqjFWDOwTlmZjryaGTD7
  5753  ttIjPFPSwfi5UY48Lec6Gd7ms4Clsylxz2ThKf1sH6bnXUojRQHpZt06VAr1yPTz
  5754  SmtKJT7ihJJWbV5nxvVYVfywUG+wbBVnRNmgOjGib6lMrRTxV7fzA9B6acdzdo/L
  5755  TQecCQWXA6DDqU3kuZ6jovFlg9D5Fwo5UNsHtPC8MIApJ/n3lhtiWYkmNqlQKicF
  5756  MDY3eZ3TRNpFHBz3v2eEDOsweauMa4wZJ/ZAU8YSRQxFyeYDvBZmbllrNHHhA7bx
  5757  VEdCTRcCIEgRH/vTfhxnD2TxS4p7MrlMGkm0XdL8OM1SidkQrWNgLPXhMELGSsZ5
  5758  e4n7VRrQjgWpLSAMzLfnEu8jyTEss1DwKatTfihzR/0wdawQkGp4PxxsB8y4j0Ei
  5759  jEvhxkD3kLXDpdXTynkklddLxGFWJljAesYAJ2uSSrW8m+HwSUy3b4L0YKdICXJm
  5760  M4HhaZlgYdeZhZ7FTU9cpcQRwB2xWXsWWXdmneE6koo0r7rCWP6oxHZCOclCHcMR
  5761  m/W0dpkgaXgyexxTRe90anmDhB8FbiU0EAqyTU6au9CxfGqVvUw8DkD2nhYSrO6y
  5762  i5kIbJURbnIEJziTOQv0a4mbNihrDr8ZR7uYhPcyyifagrGbXcDMf4iFcUkQiIsj
  5763  EMT5MZ1BCzTmQzuQA+IXa7mVJXRWEG6JUhY7i6WSUwzFqgrrQ605j+npe6pSPXpE
  5764  MWd8PTrwcZ5HXbhcqVr1CJvqvrBbL6q0iWumD4HIhHKle0aoKIJqDN+0RvgYkYLS
  5765  v16sTsHMXer1mcihPkgjVAbRf/3cg0S2xmmEqGiqkvoCInoIaVDrDIcB7VjcYod2
  5766  uYOILhF1
  5767  -----END PUBLIC KEY-----
  5768  `
  5769  
  5770  // RFC 9935, Appendix C.3.
  5771  var rfc9935ExampleCertificateMLKEM768 = `
  5772  -----BEGIN CERTIFICATE-----
  5773  MIISnTCCBZqgAwIBAgIUFZ/+byL9XMQsUk32/V4o0N44808wCwYJYIZIAWUDBAMS
  5774  MCIxDTALBgNVBAoTBElFVEYxETAPBgNVBAMTCExBTVBTIFdHMB4XDTIwMDIwMzA0
  5775  MzIxMFoXDTQwMDEyOTA0MzIxMFowIjENMAsGA1UEChMESUVURjERMA8GA1UEAxMI
  5776  TEFNUFMgV0cwggSyMAsGCWCGSAFlAwQEAgOCBKEAKYqhDUI8jdoGnQK8WebN8DoJ
  5777  a4s9pMq5uAykoUkHZyzO8exPryNKC8W36dRz8rMTOzsmodF1y2engFkZaZwC92Ux
  5778  uZxfiRgHBLtMpFNcW4lyZ5xmCgfF5RS4cAnIYuuPUVdpXvs/xAqd72uBwcwCokmu
  5779  TwlK0Nm9NIXBwcaAgFIKfIxjIDLO5zgVTlxRdsB9pWAkd2pDD+durPZlo/e4MhAi
  5780  FbyC8Qk5yDVXBDNqj6wdgeS7BIWqXXx01rWbvlxelyoNi6xBG1W11VV81oChqPcb
  5781  TrhrxIyaBQlzGlS9nXKQsnlj5DctybGZz9ysCwGs0opiOVES5MQ2SNYixIyCNNAU
  5782  QOjMN2ySfyOlr8msBHTGYidOQkUlyFUuzjs/4mUW3pAbx9UVveiVWOYmyVyAuTNC
  5783  +AEABPOebGyUhxxeNEyrOWbINfmpalmv0xxAKGs4scGnhHC6uUdRiTRFPOhnNqkZ
  5784  8fWm1RCob1RU/DmAy1x2W9K9X3s2sUENZjXIzrR8TdoNdqKOrJOcccMCSASGbHFi
  5785  ZlhEIWPCwiEX5QrO/OY3iphWUjAqTvDCzgzHFrd5bitrLjd336GsPaJZoxtam1MP
  5786  jLY4qBpirDAYSauvlacwG9owBokJv9t+Z9vMuzilVRolsaOg9oV0itV1PYiA8AFs
  5787  YnSGFmOExVcf4jZZADZNA4MR4th12zZmhpMrXsYCQwo2noem71wzh4ZleCW9TAV6
  5788  zrkj6wk15pBeY7TO1/gIV6dz3WSxUNJmEuqawSBS2yAXvxhDzLSzKBtpDccorfqF
  5789  wAKBuOPAkoczX4VrT8KJL2mi9XkhraAZFMQJiGYtV3aWYqeGNRubZkk9q3lZTZht
  5790  4hANZboP9OpYuBU40kpENaJY+sJUBKp/QfZYsThQZeFY3LYBFXMnIPQEWaqsFeQG
  5791  lTqQrFKZfRzNBwBg78ZdueZTNURn+tVuxxPIbnVAxCOs8mafUvpvSsaIjYce8+hH
  5792  wCmoqvu5LheySqB5sfQZumF1tEKvsRkJ1KVrcKAzWyhzkhiqfJNI4sPC8+s9FaQe
  5793  ZBfA3ZS/6yFBmzEae7E6GAu+gzIYqaaxdEfMhfIlhZWHpzB3BJrLz9RNDwJUOOFd
  5794  FTgnDVhuG/gxkqlFnPY8DpcvhSl2eYMezxIVCYUcuDQPbxB7D6Gg79GzaoGJvAhc
  5795  T1y3hOVT9BuRj4A5fOGVb3hb7jd8qaqL5pmK2jDCa3w9jGtVJUzJYgOyDEKu4KxO
  5796  HrtAjkmp4/h50KsHhetwJUJdEwWiKZwBXhINFjsOGUlM5XJT0CRtGCdFy4GXq3Q4
  5797  s8G7eXK+xaMG66NWeFXAFGmf72WuVMdwoNhcGEAM9kKu3GYHd7pLE4UCvVp4EvYh
  5798  +EpIKWuY3UMitvFYKLio8OAKi6RKU8OosUNXGwdAq9Vn2vHN6cecIEttXiWdF2aj
  5799  G7vLTmoFz0UCF2swHBwvQSR3UBV7zshegJswpNYNd0fN0PW5mqjIJph1F3k6qoCA
  5800  oLEkqFWN9yu+N7dfTtu2voIW1sYz+ysigOJRE9hpXkNIHD7rOX6xklBSKbZ6IB6o
  5801  k8PiyzLai8NC+k3qBXijUjBQMA4GA1UdDwEB/wQEAwIFIDAdBgNVHQ4EFgQUQry1
  5802  oWf6MwRJYS29gYcFanUY94cwHwYDVR0jBBgwFoAUGwVj480zRhScjJ688jsKTlqQ
  5803  DuowCwYJYIZIAWUDBAMSA4IM7gDya3x1P7gnc/43+gwI1bbPyLFhkbPTUdbp8wrj
  5804  S6y1IBreYKD5+OSNsHx1sQ+vThL20hYZunwSyzM3ud/UFZJcpTYE3hLIqWYYlFfD
  5805  KXc9OUYfL4xYtwY9L7NuV9GitoPOZqXGxC8uFBcCPtgXnKKm+2VcUcp3WAdgnW6T
  5806  ohOKPc1JMN1ElgywyAeUKGyVu26WhQxltO/tD9NyWjjx88GJQB0EAhd+CUx2gJoG
  5807  71QWYaHKKKY2Ap66VvNY8EwfG8xHfd1agWXl+dR7OldlYHAflSrZyczt/m97CBfT
  5808  gz0q59YrtpgFC6A8f27DOns49/pcvFrFvnqbrB6olgn4g95w9a+zTjK+0LEOLuZ7
  5809  coxK7G52UM4+zm89rgiV6Lf57E+gq6PIg6VJQzWeNlii8vK2c4D9+ru9DWxrQYIp
  5810  lO011cW7q37cw1UenD7ouG6zd0Rgq5LIaoeQgwngLFoAEGl213xGJ7nFmPKweq6m
  5811  jEWArh8WFdQS8xaArVxh16Qhijpk9aIMRXP8kv7x8ORXIOQkfE2zVQnnjMt7zTO7
  5812  YbKY0ujPJwEga8UsP95V3ApLLNc4S9EIm/URSL9i1eA5Yf0/7qZub4512LN3tH9f
  5813  QGr96wtIGKmMmD/M/ON86GXWRMvQW8w3DSgi73RuM5WH+IVZ8kRgdwx6ff/Flbd3
  5814  PXXmxziQd6JdOIDn2JeTaEfZd6MxJ8juknEQTotIzOhSNJ08zcQqkCu0OQIcNMaK
  5815  vzbzEDP+VbiIGxL6n7Y3JRnp+ACA2pWbB5lUl7Ex2OMCO9zrGAL5f98+5RFId7Mz
  5816  2gQOah/y2FFHVw72TB3XFzyPuThiTSeXW/sQUMkvGXcb6cgUA25Umuq+tvKuktLt
  5817  H7Rrj13+g+cSgkDMKpHPx2aVTaZ3hchDqQhplLu8adVkjaXldrrU/le3JYUwZCsL
  5818  4ZCbWfEZeRgq7rVirSSEm8U1psE5mFZ0LqewLz87FKIYmTFVY25Xew+T4O/BC35P
  5819  k3xp5pP99ShC+0o0YyStQziC2PmNNzjm6xHGYAYas7gyfpqVz93ooN5lg9uMTnLs
  5820  SdAD/jsumB9nLGFPJ9tNYmL6AbnlBZiBwg2oSuIlSUBTCMFmbt+4QvsgeqjHx7nQ
  5821  Z+oc8x7D3tSiVcf+sTICFRO6br2FF2PHDlTvKudW6ziFLsYWkkNK4K68p4GO983H
  5822  R8pd0uXyhICMHSgriODpHmbTvyV2Vzh9+AKCt8PLiixeKzBL0Q6A2lquMk+cJP8f
  5823  Q4QJL/TbUJ1B0yy1GVy6oToID+zM7ZUwI85VEqBnwWqA/UU3pggJg1CjItGrgM9x
  5824  fGkPVjPZ9IjadgB0tgfHZ97gW6YiocaXmu6rrYF6rxYkWDaww9Uq8CQsrv7YRb2Q
  5825  OeLCem1jyo/98YeMxVxBXZtAqMfgbAd2f0pa9Y3u84OBvdLNIyHXDWgmIhHG4uy1
  5826  6JO6OxdU9qoEyw3s/8hCAQbQZfEHTsTTbR+ij35PCZHfYOZiFUZozMCSslHSrbIc
  5827  +hmjd5slvDnbuxwCnhJX5dOnWRQtWzbUg4kJFwSven+MCQ6d8CS6RZbEHOwvCD4B
  5828  qIHUaR1+lT9bW8kynPMZk6GdKCvyAEVnf9ka4mIiJrzycqBwwdOTlfKsESviE2yd
  5829  9YyBF3adS6eOKiuE71HJ7h1gnpxQJLtrC0q4y4Rmh9arwDb5nQ7QrF4mG+jUMFLL
  5830  sR8jd+/QHGmpZ5qhUfxyti2qQOteGjDlXtA2guahqCSX71GUpXLTY3VYisnWzoM/
  5831  xdoMhKy+maEJ1mOeyrPnmOXh/mxLWpwcN42QH3u+iktGa66LKNwk5P4+1aSjV62k
  5832  6jWvWAF6bSgr7hhffyt8Nr70HklYQg3NZpo5ivpzYzCJ6r5dm0yuL6pxJg098RYu
  5833  3CfyjyOHB/FVhx+e9ADQ1I/NbkGyDvIj/AqD0TLbG9AyXU968SP3AEmedi3IZLGO
  5834  EtA373hLW/rnVCa15+3rcLcQACfJwv8VwbIpeZSBh7fZ26KcR2Rj0vV7Qn786ZbK
  5835  6aG9SlHpRCsV6hiQdsCYr1k+X0a7wrRr80fHrCd07vqG/hl4dbFu/IhMeQ243K6n
  5836  3FTnHclYDoKaUQCmlOfgp9/3djAb/rOVwiPMoXkVS8JAJPa3gazejnITG+W209T1
  5837  ukA+AYvpAR2qd1ysBjZnZxbEswAWKk2z6O/056/F1AQaIVRgKBIYzuwE1lLNLNV4
  5838  OgLUZ791oEfjVx/1QqhgLBd3pY/U3535OlM8lCURjdMo0EuxsrIY3AxDQHdnSTsw
  5839  EzE6ZDFLCFEKEEw/iVJul8qKUtFuoqsQMX51A2L1AosbaPzawY6RU2/BWFqew2A4
  5840  K5Wm5YDwilHYlpBy3+F1ByNUI5+ayXMFwQi0dqpD6QXpuRm38Ze+qy2YKtaAljeJ
  5841  xfcJjdIrx2LiAvKGHO6yMb+JVGliBZr38wS5fJX3sZY1gWE3uG82qMo9ft5ovmoE
  5842  ZMMb4GSBfX8WTyncPmO/t7/wv+JbVP/Hx0yv/7WWVY1pPoC6boEtY4YrIHve7lxv
  5843  S8NSixJ8ESLzffJZTGc9D/tDM6FRHobUZItSoFZwHpGGbfOrOD1Q8mWaVj2OxXh7
  5844  nlWrKX+WSZX59sR+Ez4eHejnNXFT2FGWrUfK05+0YooTn/4jZE/u8X9tSf/HJkKb
  5845  NyKoDeJ9lwf60iJFbQNf1zXVc0U3I9y833CvUz3V1XKZoZ6AQXcc5NW+lNpj0CPD
  5846  3Z3tjwYGIdpQopZW6qYk66yektO780fYKdqG3W+0QvFmV25DjKx0DcNXDgs6AXn8
  5847  Dehq70ogiRaqisQuXE0+Qy9MdXwx/9ytN6m3Th25dNg7PPKuPugbFAg3ev+RuPv0
  5848  a3BwLozRyAIp5VGuG7Iu0E80kAXQixkN3YQpcWhXTsJBfsrFyUVJLejYgX0Xmkj+
  5849  +2pf4+9IRf2nAwqcYRZylt1N0/x2/vVy7pz57NIoWGsQ9Vy8HcgK/rus1PWRhN36
  5850  ic5IoCgko/ctVpKZfX3Rhhm4qjWXEgzsiMj8/RhbKC2m/MobcCNCQUK26fwetMri
  5851  Sq62x3XTyaI4HU5kCQUdXcuaa13UvmFxNKqhKqJSYopCOk+2tP49qewc4dPKebbc
  5852  qYF8kVhpJB5cwifB3ieaRjU66PaTX2AwZNa0k3XrXmql9pQ6h6K7QJ+DucAJn1n0
  5853  FH0XElKBX2ebUC9luqUjHRKeJW/FDZEijj9ez8ssGMD4Elcut/qM1hNh1GB0hDN1
  5854  x8yE3KNwHJfs9bQxphoRYnw78rINuwUU9Yild15XLEa9CzUvwmOcwQXku/X4aVPv
  5855  0qsUnF414LGeySk/8XUcJewV/u9EdIm1XvL77iifRaV9CeRu4yEYPn737QCW7j+F
  5856  Ex4WrWbokI54n+SeBuvZ6Jfs/12lPjFVIsD9MM+YaIVA2846cVJ0Idc+o7MGXK5e
  5857  6p/2PjlRktXrYPVHrIRP3Ouc2js0IBEK6STubJFbSnAHTSRQqmcxph1BXLf6A1dd
  5858  7dt7R7tKbepBxWKYq5liC9Rqq2oatrbMARH59EWscoEAzZP0L0rio1KPknvM0ZBI
  5859  ibiszAb7sqkh7Hq7EoicirdXTjItOitSQWshGiuiKVqCE0jANM7lFhfO63XsFo7G
  5860  GuOuqQKDJTx+8F5qHs2s7yC4uZDDmMx+pZ36J6Mae5CcyeXVQDgkBZdU47tVCeB0
  5861  7WqaXFAdbJTKVwEkG3PSg9qp8SoDL6c9eQye/Hk1Z/vmf1tYHoPg8iJpx0iD/dEk
  5862  /73iGZEAr7U7NM/ldcDxCXO1mfBNSmixq6zp5jJEH9TCo+usT0dQKGW0N1zPyDrH
  5863  0qHWt1xSO0G6FPK4zTyEY/84z+ecXFvxxynXLYYCm5kEhK06PYiVY5OKOaBe9vma
  5864  qS66MzHNpfjNblJfG9O/HeiJLJ3vV7/F3U/kfxs3PStrMgoXMRt1KBrmIBB3F1xE
  5865  5WCaEONmuYSmJMZPbdkB+7rEsbC4v1cnyE0800BAGNYpVyPyTYbfPBthNEmYsBIV
  5866  KSYuVQ1259Ju69UE22dqnXnorsCZCXWEpmcmRO8/Gvb0Y7OYFWltDeGLFJRbJ4av
  5867  5dtNm2ZH53uLPi3aYsZU9cyfxh7AcbKSfQlRSVKCj6o0BQ3ZvmBPPOvcsUbUU5oo
  5868  FgCPOse60fvnKhEEO9zEnuU3RObcQPkDQRmMQ3OhibiGzOEOaU6PCEVJ3P+N+lJm
  5869  /0M2lNaYgaks0kmKoYdEmpLdmdGSCCB6HJ+nIIlwodrM0wK9SZUqkd+kFoGvGf7+
  5870  XkFvmlJbGn4UCaaHOUaDZsFBMiAcMAAcPv9FIM+A9NIjbC2imd0TJf+tLf6tLA6P
  5871  gFHtzTF9yuL8FSI+bbLr9go0PG2SnqPM4RQha4s2OoOvtNkQI2Smvu0AAAAAAAAA
  5872  AAAAAAAAAAAAAAAFDBUZHyU=
  5873  -----END CERTIFICATE-----
  5874  `
  5875  
  5876  // RFC 9935, Appendix C.3.
  5877  var rfc9935ExampleCertificateMLKEM1024 = `
  5878  -----BEGIN CERTIFICATE-----
  5879  MIIZQzCCBxqgAwIBAgIUFZ/+byL9XMQsUk32/V4o0N44808wCwYJYIZIAWUDBAMT
  5880  MCIxDTALBgNVBAoTBElFVEYxETAPBgNVBAMTCExBTVBTIFdHMB4XDTIwMDIwMzA0
  5881  MzIxMFoXDTQwMDEyOTA0MzIxMFowIjENMAsGA1UEChMESUVURjERMA8GA1UEAxMI
  5882  TEFNUFMgV0cwggYyMAsGCWCGSAFlAwQEAwOCBiEAS5TClFAREZGCOzUUyaweo9mC
  5883  XMuGOTot+wRlT6IZLTe/rRxJfGUC7uXKgKc7/OC69aVKiFhaQBOXo9Iy9Canr7CC
  5884  vCGkQxcJDqrHWSwuqIplPESR6hk5MTNfUumJo8TMVtnFU3MtV8Rw+0GrdZtl0tBE
  5885  RTgvzZxONEoRKPqeEeBDWOGS7QFLIyMqfuKyLiNxf0QRHuM1dTmcN2RtqYE+ybIS
  5886  r+lOXcXCMwpylMwfQjSm0/u08WhauIksBKyxfNHBcNewYRtqcXbHlMyMZ/VfySPC
  5887  rSAxAPNlmRiCwwJD13gThDtex8lkAyJjcGCS7PAMdRa+ZORZjKQibAabteZ+QXXP
  5888  IobI3VxIimxYYfMbqgvQJpRw6LVR3TvNOMhsEvnNsXbHfci2wCpwH0eJAshVP2lM
  5889  DYJye0xKXCwQQSEqoSdICLghEbN37HUhTpsZePdgBNQTnZhhP0uOmNIK97U0BzpQ
  5890  mpWbenVk+bQMohi/YYKTIKhQIBeVTTKNesbHaewpcAdW57BoWzQNXhGAWVBKSaml
  5891  ChAZjrEKV4RnjrQn17S6u5VSkzsGKJeXPhMY6vCg6sN1hKZUAbFwPgQqzNg3UxSD
  5892  8kHK3NHB03gRnmlEKdsZmsiR5MU0N1cIW7OueDZnNQxEWNl2cuhh6AsdJnlRDqOm
  5893  8jYMd6RpQsegalVNIoCAyEtHrvFNsXYgyxbAarMKG+TNpwgr6fh+nCEcRpFjSaW6
  5894  jqpSAccpSjwIhbU7ZXRSEIgl7GRskKBGEjJO59Axr+U0MTLL72e277Gl7CgJt3NT
  5895  jOd7PYsE6ws8IlYBHkxxbBmougdSv3FJIRdknwYVwykPwppG/eS9UtuShtYDOIJE
  5896  JZwVp6wrZApgzAM3alhBo/uKRzVo+psaJnIV80wBaXsPDmJxddchBbdwfCm55hS9
  5897  wzpvbIGKlTcLQniC17R2eWqexuuZMnTNmyORqCukXjOT0umulyHKnWwbmItYJ3E/
  5898  kKZYXelDNSjAKwPOELtfcgE40Pu0wwwSZrkY5Skl3+F7N/ldIrylT0dZGayFkJjA
  5899  8NCKxYde8ptW/RQebvFfcAoLZvOVlcWIF3NzxGabIbwHHkw6pfC0oxtiWPNdokrD
  5900  zSnH8gkkEMUHg1WxOPtTprmubgucCCQ+e6pFxHN264x/E9TPUapzb6MVQMkkHzcN
  5901  pUS/n5wo2aV+Lyp8qVpOS0ZuZBqzvMdq3xE51Wem8StS86ZefsCq4mvKqMVYM7BO
  5902  WZmOvJoZMPu20iM8U9LB+LlRjjwt5zoZ3uazgKWzKXHPZOEp/WwfpuddSiNFAelm
  5903  3TpUCvXI9PNKa0olPuKEklZtXmfG9VhV/LBQb7BsFWdE2aA6MaJvqUytFPFXt/MD
  5904  0Hppx3N2j8tNB5wJBZcDoMOpTeS5nqOi8WWD0PkXCjlQ2we08LwwgCkn+feWG2JZ
  5905  iSY2qVAqJwUwNjd5ndNE2kUcHPe/Z4QM6zB5q4xrjBkn9kBTxhJFDEXJ5gO8FmZu
  5906  WWs0ceEDtvFUR0JNFwIgSBEf+9N+HGcPZPFLinsyuUwaSbRd0vw4zVKJ2RCtY2As
  5907  9eEwQsZKxnl7iftVGtCOBaktIAzMt+cS7yPJMSyzUPApq1N+KHNH/TB1rBCQang/
  5908  HGwHzLiPQSKMS+HGQPeQtcOl1dPKeSSV10vEYVYmWMB6xgAna5JKtbyb4fBJTLdv
  5909  gvRgp0gJcmYzgeFpmWBh15mFnsVNT1ylxBHAHbFZexZZd2ad4TqSijSvusJY/qjE
  5910  dkI5yUIdwxGb9bR2mSBpeDJ7HFNF73RqeYOEHwVuJTQQCrJNTpq70LF8apW9TDwO
  5911  QPaeFhKs7rKLmQhslRFucgQnOJM5C/RriZs2KGsOvxlHu5iE9zLKJ9qCsZtdwMx/
  5912  iIVxSRCIiyMQxPkxnUELNOZDO5AD4hdruZUldFYQbolSFjuLpZJTDMWqCutDrTmP
  5913  6el7qlI9ekQxZ3w9OvBxnkdduFypWvUIm+q+sFsvqrSJa6YPgciEcqV7RqgogmoM
  5914  37RG+BiRgtK/XqxOwcxd6vWZyKE+SCNUBtF//dyDRLbGaYSoaKqS+gIieghpUOsM
  5915  hwHtWNxih3a5g4guEXWjUjBQMA4GA1UdDwEB/wQEAwIFIDAdBgNVHQ4EFgQU2oIY
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  6013  kNggIp4AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQIDxcdKS4x
  6014  -----END CERTIFICATE-----
  6015  `
  6016  

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