// Copyright 2009 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package x509 import ( "bytes" "crypto" "crypto/dsa" "crypto/ecdh" "crypto/ecdsa" "crypto/ed25519" "crypto/elliptic" "crypto/fips140" "crypto/internal/cryptotest" "crypto/mldsa" "crypto/rand" "crypto/rsa" _ "crypto/sha256" _ "crypto/sha512" "crypto/x509/pkix" "encoding/asn1" "encoding/base64" "encoding/gob" "encoding/hex" "encoding/pem" "errors" "fmt" "internal/testenv" "io" "math" "math/big" "net" "net/url" "reflect" "runtime" "slices" "strings" "testing" "time" ) func TestParsePKCS1PrivateKey(t *testing.T) { block, _ := pem.Decode([]byte(pemPrivateKey)) priv, err := ParsePKCS1PrivateKey(block.Bytes) if err != nil { t.Errorf("Failed to parse private key: %s", err) return } if priv.PublicKey.N.Cmp(rsaPrivateKey.PublicKey.N) != 0 || priv.PublicKey.E != rsaPrivateKey.PublicKey.E || priv.D.Cmp(rsaPrivateKey.D) != 0 || priv.Primes[0].Cmp(rsaPrivateKey.Primes[0]) != 0 || priv.Primes[1].Cmp(rsaPrivateKey.Primes[1]) != 0 { t.Errorf("got:%+v want:%+v", priv, rsaPrivateKey) } // This private key includes an invalid prime that // rsa.PrivateKey.Validate should reject. data := []byte("0\x16\x02\x00\x02\x02\u007f\x00\x02\x0200\x02\x0200\x02\x02\x00\x01\x02\x02\u007f\x00") if _, err := ParsePKCS1PrivateKey(data); err == nil { t.Errorf("parsing invalid private key did not result in an error") } // A partial key without CRT values should still parse. b, _ := asn1.Marshal(struct { Version int N *big.Int E int D *big.Int P *big.Int Q *big.Int }{ N: priv.N, E: priv.PublicKey.E, D: priv.D, P: priv.Primes[0], Q: priv.Primes[1], }) p2, err := ParsePKCS1PrivateKey(b) if err != nil { t.Fatalf("parsing partial private key resulted in an error: %v", err) } if !p2.Equal(priv) { t.Errorf("partial private key did not match original key") } if p2.Precomputed.Dp == nil || p2.Precomputed.Dq == nil || p2.Precomputed.Qinv == nil { t.Errorf("precomputed values not recomputed") } } func TestPKCS1MismatchPublicKeyFormat(t *testing.T) { const pkixPublicKey = "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" const errorContains = "use ParsePKIXPublicKey instead" derBytes, _ := hex.DecodeString(pkixPublicKey) _, err := ParsePKCS1PublicKey(derBytes) if !strings.Contains(err.Error(), errorContains) { t.Errorf("expected error containing %q, got %s", errorContains, err) } } func TestMarshalInvalidPublicKey(t *testing.T) { _, err := MarshalPKIXPublicKey(&ecdsa.PublicKey{}) if err == nil { t.Errorf("expected error, got MarshalPKIXPublicKey success") } _, err = MarshalPKIXPublicKey(&ecdsa.PublicKey{ Curve: elliptic.P256(), X: big.NewInt(1), Y: big.NewInt(2), }) if err == nil { t.Errorf("expected error, got MarshalPKIXPublicKey success") } } func testParsePKIXPublicKey(t *testing.T, pemBytes string) (pub any) { block, _ := pem.Decode([]byte(pemBytes)) pub, err := ParsePKIXPublicKey(block.Bytes) if err != nil { t.Fatalf("Failed to parse public key: %s", err) } pubBytes2, err := MarshalPKIXPublicKey(pub) if err != nil { t.Errorf("Failed to marshal public key for the second time: %s", err) return } if !bytes.Equal(pubBytes2, block.Bytes) { t.Errorf("Reserialization of public key didn't match. got %x, want %x", pubBytes2, block.Bytes) } return } func TestParsePKIXPublicKey(t *testing.T) { t.Run("RSA", func(t *testing.T) { pub := testParsePKIXPublicKey(t, pemPublicKey) _, ok := pub.(*rsa.PublicKey) if !ok { t.Errorf("Value returned from ParsePKIXPublicKey was not an RSA public key") } }) t.Run("Ed25519", func(t *testing.T) { pub := testParsePKIXPublicKey(t, pemEd25519Key) _, ok := pub.(ed25519.PublicKey) if !ok { t.Errorf("Value returned from ParsePKIXPublicKey was not an Ed25519 public key") } }) t.Run("X25519", func(t *testing.T) { pub := testParsePKIXPublicKey(t, pemX25519Key) k, ok := pub.(*ecdh.PublicKey) if !ok || k.Curve() != ecdh.X25519() { t.Errorf("Value returned from ParsePKIXPublicKey was not an X25519 public key") } }) } var pemPublicKey = `-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3VoPN9PKUjKFLMwOge6+ wnDi8sbETGIx2FKXGgqtAKpzmem53kRGEQg8WeqRmp12wgp74TGpkEXsGae7RS1k enJCnma4fii+noGH7R0qKgHvPrI2Bwa9hzsH8tHxpyM3qrXslOmD45EH9SxIDUBJ FehNdaPbLP1gFyahKMsdfxFJLUvbUycuZSJ2ZnIgeVxwm4qbSvZInL9Iu4FzuPtg fINKcbbovy1qq4KvPIrXzhbY3PWDc6btxCf3SE0JdE1MCPThntB62/bLMSQ7xdDR FF53oIpvxe/SCOymfWq/LW849Ytv3Xwod0+wzAP8STXG4HSELS4UedPYeHJJJYcZ +QIDAQAB -----END PUBLIC KEY----- ` var pemPrivateKey = testingKey(` -----BEGIN RSA TESTING KEY----- MIICXAIBAAKBgQCxoeCUW5KJxNPxMp+KmCxKLc1Zv9Ny+4CFqcUXVUYH69L3mQ7v IWrJ9GBfcaA7BPQqUlWxWM+OCEQZH1EZNIuqRMNQVuIGCbz5UQ8w6tS0gcgdeGX7 J7jgCQ4RK3F/PuCM38QBLaHx988qG8NMc6VKErBjctCXFHQt14lerd5KpQIDAQAB AoGAYrf6Hbk+mT5AI33k2Jt1kcweodBP7UkExkPxeuQzRVe0KVJw0EkcFhywKpr1 V5eLMrILWcJnpyHE5slWwtFHBG6a5fLaNtsBBtcAIfqTQ0Vfj5c6SzVaJv0Z5rOd 7gQF6isy3t3w9IF3We9wXQKzT6q5ypPGdm6fciKQ8RnzREkCQQDZwppKATqQ41/R vhSj90fFifrGE6aVKC1hgSpxGQa4oIdsYYHwMzyhBmWW9Xv/R+fPyr8ZwPxp2c12 33QwOLPLAkEA0NNUb+z4ebVVHyvSwF5jhfJxigim+s49KuzJ1+A2RaSApGyBZiwS rWvWkB471POAKUYt5ykIWVZ83zcceQiNTwJBAMJUFQZX5GDqWFc/zwGoKkeR49Yi MTXIvf7Wmv6E++eFcnT461FlGAUHRV+bQQXGsItR/opIG7mGogIkVXa3E1MCQARX AAA7eoZ9AEHflUeuLn9QJI/r0hyQQLEtrpwv6rDT1GCWaLII5HJ6NUFVf4TTcqxo 6vdM4QGKTJoO+SaCyP0CQFdpcxSAuzpFcKv0IlJ8XzS/cy+mweCMwyJ1PFEc4FX6 wg/HcAJWY60xZTJDFN+Qfx8ZQvBEin6c2/h+zZi5IVY= -----END RSA TESTING KEY----- `) // pemEd25519Key is the example from RFC 8410, Section 4. var pemEd25519Key = ` -----BEGIN PUBLIC KEY----- MCowBQYDK2VwAyEAGb9ECWmEzf6FQbrBZ9w7lshQhqowtrbLDFw4rXAxZuE= -----END PUBLIC KEY----- ` // pemX25519Key was generated from pemX25519Key with "openssl pkey -pubout". var pemX25519Key = ` -----BEGIN PUBLIC KEY----- MCowBQYDK2VuAyEA5yGXrH/6OzxuWEhEWS01/f4OP+Of3Yrddy6/J1kDTVM= -----END PUBLIC KEY----- ` func TestPKIXMismatchPublicKeyFormat(t *testing.T) { const pkcs1PublicKey = "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" const errorContains = "use ParsePKCS1PublicKey instead" derBytes, _ := hex.DecodeString(pkcs1PublicKey) _, err := ParsePKIXPublicKey(derBytes) if !strings.Contains(err.Error(), errorContains) { t.Errorf("expected error containing %q, got %s", errorContains, err) } } var testPrivateKey *rsa.PrivateKey func init() { block, _ := pem.Decode([]byte(pemPrivateKey)) var err error if testPrivateKey, err = ParsePKCS1PrivateKey(block.Bytes); err != nil { panic("Failed to parse private key: " + err.Error()) } } func bigFromString(s string) *big.Int { ret := new(big.Int) ret.SetString(s, 10) return ret } func fromBase10(base10 string) *big.Int { i := new(big.Int) i.SetString(base10, 10) return i } func bigFromHexString(s string) *big.Int { ret := new(big.Int) ret.SetString(s, 16) return ret } var rsaPrivateKey = &rsa.PrivateKey{ PublicKey: rsa.PublicKey{ N: bigFromString("124737666279038955318614287965056875799409043964547386061640914307192830334599556034328900586693254156136128122194531292927142396093148164407300419162827624945636708870992355233833321488652786796134504707628792159725681555822420087112284637501705261187690946267527866880072856272532711620639179596808018872997"), E: 65537, }, D: bigFromString("69322600686866301945688231018559005300304807960033948687567105312977055197015197977971637657636780793670599180105424702854759606794705928621125408040473426339714144598640466128488132656829419518221592374964225347786430566310906679585739468938549035854760501049443920822523780156843263434219450229353270690889"), Primes: []*big.Int{ bigFromString("11405025354575369741595561190164746858706645478381139288033759331174478411254205003127028642766986913445391069745480057674348716675323735886284176682955723"), bigFromString("10937079261204603443118731009201819560867324167189758120988909645641782263430128449826989846631183550578761324239709121189827307416350485191350050332642639"), }, } func TestMarshalRSAPrivateKey(t *testing.T) { priv := &rsa.PrivateKey{ PublicKey: rsa.PublicKey{ N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"), E: 3, }, D: fromBase10("10897585948254795600358846499957366070880176878341177571733155050184921896034527397712889205732614568234385175145686545381899460748279607074689061600935843283397424506622998458510302603922766336783617368686090042765718290914099334449154829375179958369993407724946186243249568928237086215759259909861748642124071874879861299389874230489928271621259294894142840428407196932444474088857746123104978617098858619445675532587787023228852383149557470077802718705420275739737958953794088728369933811184572620857678792001136676902250566845618813972833750098806496641114644760255910789397593428910198080271317419213080834885003"), Primes: []*big.Int{ fromBase10("1025363189502892836833747188838978207017355117492483312747347695538428729137306368764177201532277413433182799108299960196606011786562992097313508180436744488171474690412562218914213688661311117337381958560443"), fromBase10("3467903426626310123395340254094941045497208049900750380025518552334536945536837294961497712862519984786362199788654739924501424784631315081391467293694361474867825728031147665777546570788493758372218019373"), fromBase10("4597024781409332673052708605078359346966325141767460991205742124888960305710298765592730135879076084498363772408626791576005136245060321874472727132746643162385746062759369754202494417496879741537284589047"), }, } derBytes := MarshalPKCS1PrivateKey(priv) priv2, err := ParsePKCS1PrivateKey(derBytes) if err != nil { t.Errorf("error parsing serialized key: %s", err) return } if priv.PublicKey.N.Cmp(priv2.PublicKey.N) != 0 || priv.PublicKey.E != priv2.PublicKey.E || priv.D.Cmp(priv2.D) != 0 || len(priv2.Primes) != 3 || priv.Primes[0].Cmp(priv2.Primes[0]) != 0 || priv.Primes[1].Cmp(priv2.Primes[1]) != 0 || priv.Primes[2].Cmp(priv2.Primes[2]) != 0 { t.Errorf("wrong priv:\ngot %+v\nwant %+v", priv2, priv) } if priv.Precomputed.Dp == nil { t.Fatalf("Precomputed.Dp is nil") } } func TestMarshalRSAPrivateKeyInvalid(t *testing.T) { block, _ := pem.Decode([]byte(strings.ReplaceAll( `-----BEGIN RSA TESTING KEY----- MIIEowIBAAKCAQEAsPnoGUOnrpiSqt4XynxA+HRP7S+BSObI6qJ7fQAVSPtRkqso tWxQYLEYzNEx5ZSHTGypibVsJylvCfuToDTfMul8b/CZjP2Ob0LdpYrNH6l5hvFE 89FU1nZQF15oVLOpUgA7wGiHuEVawrGfey92UE68mOyUVXGweJIVDdxqdMoPvNNU l86BU02vlBiESxOuox+dWmuVV7vfYZ79Toh/LUK43YvJh+rhv4nKuF7iHjVjBd9s B6iDjj70HFldzOQ9r8SRI+9NirupPTkF5AKNe6kUhKJ1luB7S27ZkvB3tSTT3P59 3VVJvnzOjaA1z6Cz+4+eRvcysqhrRgFlwI9TEwIDAQABAoIBAEEYiyDP29vCzx/+ dS3LqnI5BjUuJhXUnc6AWX/PCgVAO+8A+gZRgvct7PtZb0sM6P9ZcLrweomlGezI FrL0/6xQaa8bBr/ve/a8155OgcjFo6fZEw3Dz7ra5fbSiPmu4/b/kvrg+Br1l77J aun6uUAs1f5B9wW+vbR7tzbT/mxaUeDiBzKpe15GwcvbJtdIVMa2YErtRjc1/5B2 BGVXyvlJv0SIlcIEMsHgnAFOp1ZgQ08aDzvilLq8XVMOahAhP1O2A3X8hKdXPyrx IVWE9bS9ptTo+eF6eNl+d7htpKGEZHUxinoQpWEBTv+iOoHsVunkEJ3vjLP3lyI/ fY0NQ1ECgYEA3RBXAjgvIys2gfU3keImF8e/TprLge1I2vbWmV2j6rZCg5r/AS0u pii5CvJ5/T5vfJPNgPBy8B/yRDs+6PJO1GmnlhOkG9JAIPkv0RBZvR0PMBtbp6nT Y3yo1lwamBVBfY6rc0sLTzosZh2aGoLzrHNMQFMGaauORzBFpY5lU50CgYEAzPHl u5DI6Xgep1vr8QvCUuEesCOgJg8Yh1UqVoY/SmQh6MYAv1I9bLGwrb3WW/7kqIoD fj0aQV5buVZI2loMomtU9KY5SFIsPV+JuUpy7/+VE01ZQM5FdY8wiYCQiVZYju9X Wz5LxMNoz+gT7pwlLCsC4N+R8aoBk404aF1gum8CgYAJ7VTq7Zj4TFV7Soa/T1eE k9y8a+kdoYk3BASpCHJ29M5R2KEA7YV9wrBklHTz8VzSTFTbKHEQ5W5csAhoL5Fo qoHzFFi3Qx7MHESQb9qHyolHEMNx6QdsHUn7rlEnaTTyrXh3ifQtD6C0yTmFXUIS CW9wKApOrnyKJ9nI0HcuZQKBgQCMtoV6e9VGX4AEfpuHvAAnMYQFgeBiYTkBKltQ XwozhH63uMMomUmtSG87Sz1TmrXadjAhy8gsG6I0pWaN7QgBuFnzQ/HOkwTm+qKw AsrZt4zeXNwsH7QXHEJCFnCmqw9QzEoZTrNtHJHpNboBuVnYcoueZEJrP8OnUG3r UjmopwKBgAqB2KYYMUqAOvYcBnEfLDmyZv9BTVNHbR2lKkMYqv5LlvDaBxVfilE0 2riO4p6BaAdvzXjKeRrGNEKoHNBpOSfYCOM16NjL8hIZB1CaV3WbT5oY+jp7Mzd5 7d56RZOE+ERK2uz/7JX9VSsM/LbH9pJibd4e8mikDS9ntciqOH/3 -----END RSA TESTING KEY-----`, "TESTING KEY", "PRIVATE KEY"))) testRSA2048, _ := ParsePKCS1PrivateKey(block.Bytes) broken := *testRSA2048 broken.Precomputed.Dp = new(big.Int).SetUint64(42) parsed, err := ParsePKCS1PrivateKey(MarshalPKCS1PrivateKey(&broken)) if err == nil { t.Errorf("expected error, got success") } t.Setenv("GODEBUG", "x509rsacrt=0") parsed, err = ParsePKCS1PrivateKey(MarshalPKCS1PrivateKey(&broken)) if err != nil { t.Fatalf("expected success, got error: %v", err) } // Dp should have been recomputed. if parsed.Precomputed.Dp.Cmp(testRSA2048.Precomputed.Dp) != 0 { t.Errorf("Dp recomputation failed: got %v, want %v", parsed.Precomputed.Dp, testRSA2048.Precomputed.Dp) } } func TestMarshalRSAPublicKey(t *testing.T) { pub := &rsa.PublicKey{ N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"), E: 3, } derBytes := MarshalPKCS1PublicKey(pub) pub2, err := ParsePKCS1PublicKey(derBytes) if err != nil { t.Errorf("ParsePKCS1PublicKey: %s", err) } if pub.N.Cmp(pub2.N) != 0 || pub.E != pub2.E { t.Errorf("ParsePKCS1PublicKey = %+v, want %+v", pub, pub2) } // It's never been documented that asn1.Marshal/Unmarshal on rsa.PublicKey works, // but it does, and we know of code that depends on it. // Lock that in, even though we'd prefer that people use MarshalPKCS1PublicKey and ParsePKCS1PublicKey. derBytes2, err := asn1.Marshal(*pub) if err != nil { t.Errorf("Marshal(rsa.PublicKey): %v", err) } else if !bytes.Equal(derBytes, derBytes2) { t.Errorf("Marshal(rsa.PublicKey) = %x, want %x", derBytes2, derBytes) } pub3 := new(rsa.PublicKey) rest, err := asn1.Unmarshal(derBytes, pub3) if err != nil { t.Errorf("Unmarshal(rsa.PublicKey): %v", err) } if len(rest) != 0 || pub.N.Cmp(pub3.N) != 0 || pub.E != pub3.E { t.Errorf("Unmarshal(rsa.PublicKey) = %+v, %q want %+v, %q", pub, rest, pub2, []byte(nil)) } publicKeys := []struct { derBytes []byte expectedErrSubstr string }{ { derBytes: []byte{ 0x30, 6, // SEQUENCE, 6 bytes 0x02, 1, // INTEGER, 1 byte 17, 0x02, 1, // INTEGER, 1 byte 3, // 3 }, }, { derBytes: []byte{ 0x30, 6, // SEQUENCE 0x02, 1, // INTEGER, 1 byte 0xff, // -1 0x02, 1, // INTEGER, 1 byte 3, }, expectedErrSubstr: "zero or negative", }, { derBytes: []byte{ 0x30, 6, // SEQUENCE 0x02, 1, // INTEGER, 1 byte 17, 0x02, 1, // INTEGER, 1 byte 0xff, // -1 }, expectedErrSubstr: "zero or negative", }, { derBytes: []byte{ 0x30, 6, // SEQUENCE 0x02, 1, // INTEGER, 1 byte 17, 0x02, 1, // INTEGER, 1 byte 3, 1, }, expectedErrSubstr: "trailing data", }, { derBytes: []byte{ 0x30, 9, // SEQUENCE 0x02, 1, // INTEGER, 1 byte 17, 0x02, 4, // INTEGER, 4 bytes 0x7f, 0xff, 0xff, 0xff, }, }, { derBytes: []byte{ 0x30, 10, // SEQUENCE 0x02, 1, // INTEGER, 1 byte 17, 0x02, 5, // INTEGER, 5 bytes 0x00, 0x80, 0x00, 0x00, 0x00, }, // On 64-bit systems, encoding/asn1 will accept the // public exponent, but ParsePKCS1PublicKey will return // an error. On 32-bit systems, encoding/asn1 will // return the error. The common substring of both error // is the word “large”. expectedErrSubstr: "large", }, } for i, test := range publicKeys { shouldFail := len(test.expectedErrSubstr) > 0 pub, err := ParsePKCS1PublicKey(test.derBytes) if shouldFail { if err == nil { t.Errorf("#%d: unexpected success, got %#v", i, pub) } else if !strings.Contains(err.Error(), test.expectedErrSubstr) { t.Errorf("#%d: expected error containing %q, got %s", i, test.expectedErrSubstr, err) } } else { if err != nil { t.Errorf("#%d: unexpected failure: %s", i, err) continue } reserialized := MarshalPKCS1PublicKey(pub) if !bytes.Equal(reserialized, test.derBytes) { t.Errorf("#%d: failed to reserialize: got %x, expected %x", i, reserialized, test.derBytes) } } } } type matchHostnamesTest struct { pattern, host string ok bool } var matchHostnamesTests = []matchHostnamesTest{ {"a.b.c", "a.b.c", true}, {"a.b.c", "b.b.c", false}, {"", "b.b.c", false}, {"a.b.c", "", false}, {"example.com", "example.com", true}, {"example.com", "www.example.com", false}, {"*.example.com", "example.com", false}, {"*.example.com", "www.example.com", true}, {"*.example.com", "www.example.com.", true}, {"*.example.com", "xyz.www.example.com", false}, {"*.example.com", "https://www.example.com", false}, // Issue 27591 {"*.example..com", "www.example..com", false}, {"www.example..com", "www.example..com", true}, {"*.*.example.com", "xyz.www.example.com", false}, {"*.www.*.com", "xyz.www.example.com", false}, {"*bar.example.com", "foobar.example.com", false}, {"f*.example.com", "foobar.example.com", false}, {"www.example.com", "*.example.com", false}, {"", ".", false}, {".", "", false}, {".", ".", false}, {"example.com", "example.com.", true}, {"example.com.", "example.com", false}, {"example.com.", "example.com.", true}, // perfect matches allow trailing dots in patterns {"*.com.", "example.com.", false}, {"*.com.", "example.com", false}, {"*.com", "example.com", true}, {"*.com", "example.com.", true}, {"foo:bar", "foo:bar", true}, {"*.foo:bar", "xxx.foo:bar", false}, {"*.2.3.4", "1.2.3.4", false}, {"*.2.3.4", "[1.2.3.4]", false}, {"*:4860:4860::8888", "2001:4860:4860::8888", false}, {"*:4860:4860::8888", "[2001:4860:4860::8888]", false}, {"2001:4860:4860::8888", "2001:4860:4860::8888", false}, {"2001:4860:4860::8888", "[2001:4860:4860::8888]", false}, {"[2001:4860:4860::8888]", "2001:4860:4860::8888", false}, {"[2001:4860:4860::8888]", "[2001:4860:4860::8888]", false}, } func TestMatchHostnames(t *testing.T) { for i, test := range matchHostnamesTests { c := &Certificate{DNSNames: []string{test.pattern}} r := c.VerifyHostname(test.host) == nil if r != test.ok { t.Errorf("#%d mismatch got: %t want: %t when matching '%s' against '%s'", i, r, test.ok, test.host, test.pattern) } } } func TestMatchIP(t *testing.T) { // Check that pattern matching is working. c := &Certificate{ DNSNames: []string{"*.foo.bar.baz"}, Subject: pkix.Name{ CommonName: "*.foo.bar.baz", }, } err := c.VerifyHostname("quux.foo.bar.baz") if err != nil { t.Fatalf("VerifyHostname(quux.foo.bar.baz): %v", err) } // But check that if we change it to be matching against an IP address, // it is rejected. c = &Certificate{ DNSNames: []string{"*.2.3.4"}, Subject: pkix.Name{ CommonName: "*.2.3.4", }, } err = c.VerifyHostname("1.2.3.4") if err == nil { t.Fatalf("VerifyHostname(1.2.3.4) should have failed, did not") } c = &Certificate{ IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("::1")}, } err = c.VerifyHostname("127.0.0.1") if err != nil { t.Fatalf("VerifyHostname(127.0.0.1): %v", err) } err = c.VerifyHostname("::1") if err != nil { t.Fatalf("VerifyHostname(::1): %v", err) } err = c.VerifyHostname("[::1]") if err != nil { t.Fatalf("VerifyHostname([::1]): %v", err) } } func TestCertificateParse(t *testing.T) { s, _ := base64.StdEncoding.DecodeString(certBytes) certs, err := ParseCertificates(s) if err != nil { t.Error(err) } if len(certs) != 2 { t.Errorf("Wrong number of certs: got %d want 2", len(certs)) return } err = certs[0].CheckSignatureFrom(certs[1]) if err != nil { t.Error(err) } if err := certs[0].VerifyHostname("mail.google.com"); err != nil { t.Error(err) } const expectedExtensions = 10 if n := len(certs[0].Extensions); n != expectedExtensions { t.Errorf("want %d extensions, got %d", expectedExtensions, n) } } func TestCertificateEqualOnNil(t *testing.T) { cNonNil := new(Certificate) var cNil1, cNil2 *Certificate if !cNil1.Equal(cNil2) { t.Error("Nil certificates: cNil1 is not equal to cNil2") } if !cNil2.Equal(cNil1) { t.Error("Nil certificates: cNil2 is not equal to cNil1") } if cNil1.Equal(cNonNil) { t.Error("Unexpectedly cNil1 is equal to cNonNil") } if cNonNil.Equal(cNil1) { t.Error("Unexpectedly cNonNil is equal to cNil1") } } func TestMismatchedSignatureAlgorithm(t *testing.T) { der, _ := pem.Decode([]byte(rsaPSSSelfSignedPEM)) if der == nil { t.Fatal("Failed to find PEM block") } cert, err := ParseCertificate(der.Bytes) if err != nil { t.Fatal(err) } if err = cert.CheckSignature(ECDSAWithSHA256, nil, nil); err == nil { t.Fatal("CheckSignature unexpectedly return no error") } const expectedSubstring = " but have public key of type " if !strings.Contains(err.Error(), expectedSubstring) { t.Errorf("Expected error containing %q, but got %q", expectedSubstring, err) } } var certBytes = "MIIE0jCCA7qgAwIBAgIQWcvS+TTB3GwCAAAAAGEAWzANBgkqhkiG9w0BAQsFADBCMQswCQYD" + "VQQGEwJVUzEeMBwGA1UEChMVR29vZ2xlIFRydXN0IFNlcnZpY2VzMRMwEQYDVQQDEwpHVFMg" + "Q0EgMU8xMB4XDTIwMDQwMTEyNTg1NloXDTIwMDYyNDEyNTg1NlowaTELMAkGA1UEBhMCVVMx" + "EzARBgNVBAgTCkNhbGlmb3JuaWExFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxEzARBgNVBAoT" + "Ckdvb2dsZSBMTEMxGDAWBgNVBAMTD21haWwuZ29vZ2xlLmNvbTBZMBMGByqGSM49AgEGCCqG" + "SM49AwEHA0IABO+dYiPnkFl+cZVf6mrWeNp0RhQcJSBGH+sEJxjvc+cYlW3QJCnm57qlpFdd" + "pz3MPyVejvXQdM6iI1mEWP4C2OujggJmMIICYjAOBgNVHQ8BAf8EBAMCB4AwEwYDVR0lBAww" + "CgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUI6pZhnQ/lQgmPDwSKR2A54G7" + "AS4wHwYDVR0jBBgwFoAUmNH4bhDrz5vsYJ8YkBug630J/SswZAYIKwYBBQUHAQEEWDBWMCcG" + "CCsGAQUFBzABhhtodHRwOi8vb2NzcC5wa2kuZ29vZy9ndHMxbzEwKwYIKwYBBQUHMAKGH2h0" + "dHA6Ly9wa2kuZ29vZy9nc3IyL0dUUzFPMS5jcnQwLAYDVR0RBCUwI4IPbWFpbC5nb29nbGUu" + "Y29tghBpbmJveC5nb29nbGUuY29tMCEGA1UdIAQaMBgwCAYGZ4EMAQICMAwGCisGAQQB1nkC" + "BQMwLwYDVR0fBCgwJjAkoCKgIIYeaHR0cDovL2NybC5wa2kuZ29vZy9HVFMxTzEuY3JsMIIB" + "AwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+L" + "kF4AAAFxNgmxKgAABAMARzBFAiEA12/OHdTGXQ3qHHC3NvYCyB8aEz/+ZFOLCAI7lhqj28sC" + "IG2/7Yz2zK6S6ai+dH7cTMZmoFGo39gtaTqtZAqEQX7nAHUAXqdz+d9WwOe1Nkh90EngMnqR" + "mgyEoRIShBh1loFxRVgAAAFxNgmxTAAABAMARjBEAiA7PNq+MFfv6O9mBkxFViS2TfU66yRB" + "/njcebWglLQjZQIgOyRKhxlEizncFRml7yn4Bg48ktXKGjo+uiw6zXEINb0wDQYJKoZIhvcN" + "AQELBQADggEBADM2Rh306Q10PScsolYMxH1B/K4Nb2WICvpY0yDPJFdnGjqCYym196TjiEvs" + "R6etfeHdyzlZj6nh82B4TVyHjiWM02dQgPalOuWQcuSy0OvLh7F1E7CeHzKlczdFPBTOTdM1" + "RDTxlvw1bAqc0zueM8QIAyEy3opd7FxAcGQd5WRIJhzLBL+dbbMOW/LTeW7cm/Xzq8cgCybN" + "BSZAvhjseJ1L29OlCTZL97IfnX0IlFQzWuvvHy7V2B0E3DHlzM0kjwkkCKDUUp/wajv2NZKC" + "TkhEyERacZRKc9U0ADxwsAzHrdz5+5zfD2usEV/MQ5V6d8swLXs+ko0X6swrd4YCiB8wggRK" + "MIIDMqADAgECAg0B47SaoY2KqYElaVC4MA0GCSqGSIb3DQEBCwUAMEwxIDAeBgNVBAsTF0ds" + "b2JhbFNpZ24gUm9vdCBDQSAtIFIyMRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpH" + "bG9iYWxTaWduMB4XDTE3MDYxNTAwMDA0MloXDTIxMTIxNTAwMDA0MlowQjELMAkGA1UEBhMC" + "VVMxHjAcBgNVBAoTFUdvb2dsZSBUcnVzdCBTZXJ2aWNlczETMBEGA1UEAxMKR1RTIENBIDFP" + "MTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANAYz0XUi83TnORA73603WkhG8nP" + "PI5MdbkPMRmEPZ48Ke9QDRCTbwWAgJ8qoL0SSwLhPZ9YFiT+MJ8LdHdVkx1L903hkoIQ9lGs" + "DMOyIpQPNGuYEEnnC52DOd0gxhwt79EYYWXnI4MgqCMS/9Ikf9Qv50RqW03XUGawr55CYwX7" + "4BzEY2Gvn2oz/2KXvUjZ03wUZ9x13C5p6PhteGnQtxAFuPExwjsk/RozdPgj4OxrGYoWxuPN" + "pM0L27OkWWA4iDutHbnGjKdTG/y82aSrvN08YdeTFZjugb2P4mRHIEAGTtesl+i5wFkSoUkl" + "I+TtcDQspbRjfPmjPYPRzW0krAcCAwEAAaOCATMwggEvMA4GA1UdDwEB/wQEAwIBhjAdBgNV" + "HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwEgYDVR0TAQH/BAgwBgEB/wIBADAdBgNVHQ4E" + "FgQUmNH4bhDrz5vsYJ8YkBug630J/SswHwYDVR0jBBgwFoAUm+IHV2ccHsBqBt5ZtJot39wZ" + "hi4wNQYIKwYBBQUHAQEEKTAnMCUGCCsGAQUFBzABhhlodHRwOi8vb2NzcC5wa2kuZ29vZy9n" + "c3IyMDIGA1UdHwQrMCkwJ6AloCOGIWh0dHA6Ly9jcmwucGtpLmdvb2cvZ3NyMi9nc3IyLmNy" + "bDA/BgNVHSAEODA2MDQGBmeBDAECAjAqMCgGCCsGAQUFBwIBFhxodHRwczovL3BraS5nb29n" + "L3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQAagD42efvzLqlGN31eVBY1rsdOCJn+" + "vdE0aSZSZgc9CrpJy2L08RqO/BFPaJZMdCvTZ96yo6oFjYRNTCBlD6WW2g0W+Gw7228EI4hr" + "OmzBYL1on3GO7i1YNAfw1VTphln9e14NIZT1jMmo+NjyrcwPGvOap6kEJ/mjybD/AnhrYbrH" + "NSvoVvpPwxwM7bY8tEvq7czhPOzcDYzWPpvKQliLzBYhF0C8otZm79rEFVvNiaqbCSbnMtIN" + "bmcgAlsQsJAJnAwfnq3YO+qh/GzoEFwIUhlRKnG7rHq13RXtK8kIKiyKtKYhq2P/11JJUNCJ" + "t63yr/tQri/hlQ3zRq2dnPXK" func parseCIDR(s string) *net.IPNet { _, net, err := net.ParseCIDR(s) if err != nil { panic(err) } return net } func parseURI(s string) *url.URL { uri, err := url.Parse(s) if err != nil { panic(err) } return uri } func TestCreateSelfSignedCertificate(t *testing.T) { random := rand.Reader ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA key: %s", err) } ed25519Pub, ed25519Priv, err := ed25519.GenerateKey(random) if err != nil { t.Fatalf("Failed to generate Ed25519 key: %s", err) } type test struct { name string pub, priv any checkSig bool sigAlgo SignatureAlgorithm } tests := []test{ {"RSA/RSA", &testPrivateKey.PublicKey, testPrivateKey, true, SHA384WithRSA}, {"RSA/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384}, {"ECDSA/RSA", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSA}, {"ECDSA/ECDSA", &ecdsaPriv.PublicKey, ecdsaPriv, true, ECDSAWithSHA256}, {"RSAPSS/RSAPSS", &testPrivateKey.PublicKey, testPrivateKey, true, SHA256WithRSAPSS}, {"ECDSA/RSAPSS", &ecdsaPriv.PublicKey, testPrivateKey, false, SHA256WithRSAPSS}, {"RSAPSS/ECDSA", &testPrivateKey.PublicKey, ecdsaPriv, false, ECDSAWithSHA384}, {"Ed25519", ed25519Pub, ed25519Priv, true, PureEd25519}, } if fips140.Version() != "v1.0.0" { mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44()) if err != nil { t.Fatalf("Failed to generate ML-DSA-44 key: %s", err) } tests = append(tests, test{"ML-DSA-44", mldsaPriv.PublicKey(), mldsaPriv, true, MLDSA44}) } testExtKeyUsage := []ExtKeyUsage{ExtKeyUsageClientAuth, ExtKeyUsageServerAuth} testUnknownExtKeyUsage := []asn1.ObjectIdentifier{[]int{1, 2, 3}, []int{2, 59, 1}} extraExtensionData := []byte("extra extension") for _, test := range tests { commonName := "test.example.com" template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: commonName, Organization: []string{"Σ Acme Co"}, Country: []string{"US"}, ExtraNames: []pkix.AttributeTypeAndValue{ { Type: []int{2, 5, 4, 42}, Value: "Gopher", }, // This should override the Country, above. { Type: []int{2, 5, 4, 6}, Value: "NL", }, }, }, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), SignatureAlgorithm: test.sigAlgo, SubjectKeyId: []byte{1, 2, 3, 4}, KeyUsage: KeyUsageCertSign, ExtKeyUsage: testExtKeyUsage, UnknownExtKeyUsage: testUnknownExtKeyUsage, BasicConstraintsValid: true, IsCA: true, OCSPServer: []string{"http://ocsp.example.com"}, IssuingCertificateURL: []string{"http://crt.example.com/ca1.crt"}, DNSNames: []string{"test.example.com"}, EmailAddresses: []string{"gopher@golang.org"}, IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")}, URIs: []*url.URL{parseURI("https://foo.com/wibble#foo")}, Policies: []OID{mustNewOIDFromInts([]uint64{1, 2, 3, math.MaxUint32, math.MaxUint64})}, PermittedDNSDomains: []string{".example.com", "example.com"}, ExcludedDNSDomains: []string{"bar.example.com"}, PermittedIPRanges: []*net.IPNet{parseCIDR("192.168.1.1/16"), parseCIDR("1.2.3.4/8")}, ExcludedIPRanges: []*net.IPNet{parseCIDR("2001:db8::/48")}, PermittedEmailAddresses: []string{"foo@example.com"}, ExcludedEmailAddresses: []string{".example.com", "example.com"}, PermittedURIDomains: []string{".bar.com", "bar.com"}, ExcludedURIDomains: []string{".bar2.com", "bar2.com"}, CRLDistributionPoints: []string{"http://crl1.example.com/ca1.crl", "http://crl2.example.com/ca1.crl"}, ExtraExtensions: []pkix.Extension{ { Id: []int{1, 2, 3, 4}, Value: extraExtensionData, }, // This extension should override the SubjectKeyId, above. { Id: oidExtensionSubjectKeyId, Critical: false, Value: []byte{0x04, 0x04, 4, 3, 2, 1}, }, }, } derBytes, err := CreateCertificate(random, &template, &template, test.pub, test.priv) if err != nil { t.Errorf("%s: failed to create certificate: %s", test.name, err) continue } cert, err := ParseCertificate(derBytes) if err != nil { t.Errorf("%s: failed to parse certificate: %s", test.name, err) continue } if len(cert.Policies) != 1 || !cert.Policies[0].Equal(template.Policies[0]) { t.Errorf("%s: failed to parse policy identifiers: got:%#v want:%#v", test.name, cert.PolicyIdentifiers, template.Policies) } if len(cert.PermittedDNSDomains) != 2 || cert.PermittedDNSDomains[0] != ".example.com" || cert.PermittedDNSDomains[1] != "example.com" { t.Errorf("%s: failed to parse name constraints: %#v", test.name, cert.PermittedDNSDomains) } if len(cert.ExcludedDNSDomains) != 1 || cert.ExcludedDNSDomains[0] != "bar.example.com" { t.Errorf("%s: failed to parse name constraint exclusions: %#v", test.name, cert.ExcludedDNSDomains) } if len(cert.PermittedIPRanges) != 2 || cert.PermittedIPRanges[0].String() != "192.168.0.0/16" || cert.PermittedIPRanges[1].String() != "1.0.0.0/8" { t.Errorf("%s: failed to parse IP constraints: %#v", test.name, cert.PermittedIPRanges) } if len(cert.ExcludedIPRanges) != 1 || cert.ExcludedIPRanges[0].String() != "2001:db8::/48" { t.Errorf("%s: failed to parse IP constraint exclusions: %#v", test.name, cert.ExcludedIPRanges) } if len(cert.PermittedEmailAddresses) != 1 || cert.PermittedEmailAddresses[0] != "foo@example.com" { t.Errorf("%s: failed to parse permitted email addresses: %#v", test.name, cert.PermittedEmailAddresses) } if len(cert.ExcludedEmailAddresses) != 2 || cert.ExcludedEmailAddresses[0] != ".example.com" || cert.ExcludedEmailAddresses[1] != "example.com" { t.Errorf("%s: failed to parse excluded email addresses: %#v", test.name, cert.ExcludedEmailAddresses) } if len(cert.PermittedURIDomains) != 2 || cert.PermittedURIDomains[0] != ".bar.com" || cert.PermittedURIDomains[1] != "bar.com" { t.Errorf("%s: failed to parse permitted URIs: %#v", test.name, cert.PermittedURIDomains) } if len(cert.ExcludedURIDomains) != 2 || cert.ExcludedURIDomains[0] != ".bar2.com" || cert.ExcludedURIDomains[1] != "bar2.com" { t.Errorf("%s: failed to parse excluded URIs: %#v", test.name, cert.ExcludedURIDomains) } if cert.Subject.CommonName != commonName { t.Errorf("%s: subject wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Subject.CommonName, commonName) } if len(cert.Subject.Country) != 1 || cert.Subject.Country[0] != "NL" { t.Errorf("%s: ExtraNames didn't override Country", test.name) } for _, ext := range cert.Extensions { if ext.Id.Equal(oidExtensionSubjectAltName) { if ext.Critical { t.Fatal("SAN extension is marked critical") } } } found := false for _, atv := range cert.Subject.Names { if atv.Type.Equal([]int{2, 5, 4, 42}) { found = true break } } if !found { t.Errorf("%s: Names didn't contain oid 2.5.4.42 from ExtraNames", test.name) } if cert.Issuer.CommonName != commonName { t.Errorf("%s: issuer wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Issuer.CommonName, commonName) } if cert.SignatureAlgorithm != test.sigAlgo { t.Errorf("%s: SignatureAlgorithm wasn't copied from template. Got %v, want %v", test.name, cert.SignatureAlgorithm, test.sigAlgo) } if !slices.Equal(cert.ExtKeyUsage, testExtKeyUsage) { t.Errorf("%s: extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.ExtKeyUsage, testExtKeyUsage) } if !slices.EqualFunc(cert.UnknownExtKeyUsage, testUnknownExtKeyUsage, asn1.ObjectIdentifier.Equal) { t.Errorf("%s: unknown extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.UnknownExtKeyUsage, testUnknownExtKeyUsage) } if !slices.Equal(cert.OCSPServer, template.OCSPServer) { t.Errorf("%s: OCSP servers differ from template. Got %v, want %v", test.name, cert.OCSPServer, template.OCSPServer) } if !slices.Equal(cert.IssuingCertificateURL, template.IssuingCertificateURL) { t.Errorf("%s: Issuing certificate URLs differ from template. Got %v, want %v", test.name, cert.IssuingCertificateURL, template.IssuingCertificateURL) } if !slices.Equal(cert.DNSNames, template.DNSNames) { t.Errorf("%s: SAN DNS names differ from template. Got %v, want %v", test.name, cert.DNSNames, template.DNSNames) } if !slices.Equal(cert.EmailAddresses, template.EmailAddresses) { t.Errorf("%s: SAN emails differ from template. Got %v, want %v", test.name, cert.EmailAddresses, template.EmailAddresses) } if len(cert.URIs) != 1 || cert.URIs[0].String() != "https://foo.com/wibble#foo" { t.Errorf("%s: URIs differ from template. Got %v, want %v", test.name, cert.URIs, template.URIs) } if !slices.EqualFunc(cert.IPAddresses, template.IPAddresses, net.IP.Equal) { t.Errorf("%s: SAN IPs differ from template. Got %v, want %v", test.name, cert.IPAddresses, template.IPAddresses) } if !slices.Equal(cert.CRLDistributionPoints, template.CRLDistributionPoints) { t.Errorf("%s: CRL distribution points differ from template. Got %v, want %v", test.name, cert.CRLDistributionPoints, template.CRLDistributionPoints) } if !bytes.Equal(cert.SubjectKeyId, []byte{4, 3, 2, 1}) { t.Errorf("%s: ExtraExtensions didn't override SubjectKeyId", test.name) } if !bytes.Contains(derBytes, extraExtensionData) { t.Errorf("%s: didn't find extra extension in DER output", test.name) } if test.checkSig { err = cert.CheckSignatureFrom(cert) if err != nil { t.Errorf("%s: signature verification failed: %s", test.name, err) } } } } // Self-signed certificate using ECDSA with SHA1 & secp256r1 var ecdsaSHA1CertPem = ` -----BEGIN CERTIFICATE----- MIICDjCCAbUCCQDF6SfN0nsnrjAJBgcqhkjOPQQBMIGPMQswCQYDVQQGEwJVUzET MBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEVMBMG A1UECgwMR29vZ2xlLCBJbmMuMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIwMjAyMDUw WhcNMjIwNTE4MjAyMDUwWjCBjzELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFTATBgNVBAoMDEdvb2dsZSwg SW5jLjEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20xIzAhBgkqhkiG9w0BCQEWFGdv bGFuZy1kZXZAZ21haWwuY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE/Wgn WQDo5+bz71T0327ERgd5SDDXFbXLpzIZDXTkjpe8QTEbsF+ezsQfrekrpDPC4Cd3 P9LY0tG+aI8IyVKdUjAJBgcqhkjOPQQBA0gAMEUCIGlsqMcRqWVIWTD6wXwe6Jk2 DKxL46r/FLgJYnzBEH99AiEA3fBouObsvV1R3oVkb4BQYnD4/4LeId6lAT43YvyV a/A= -----END CERTIFICATE----- ` // Self-signed certificate using ECDSA with SHA256 & secp256r1 var ecdsaSHA256p256CertPem = ` -----BEGIN CERTIFICATE----- MIICDzCCAbYCCQDlsuMWvgQzhTAKBggqhkjOPQQDAjCBjzELMAkGA1UEBhMCVVMx EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFTAT BgNVBAoMDEdvb2dsZSwgSW5jLjEXMBUGA1UEAwwOd3d3Lmdvb2dsZS5jb20xIzAh BgkqhkiG9w0BCQEWFGdvbGFuZy1kZXZAZ21haWwuY29tMB4XDTEyMDUyMTAwMTkx NloXDTIyMDUxOTAwMTkxNlowgY8xCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxp Zm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBWaWV3MRUwEwYDVQQKDAxHb29nbGUs IEluYy4xFzAVBgNVBAMMDnd3dy5nb29nbGUuY29tMSMwIQYJKoZIhvcNAQkBFhRn b2xhbmctZGV2QGdtYWlsLmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABPMt 2ErhxAty5EJRu9yM+MTy+hUXm3pdW1ensAv382KoGExSXAFWP7pjJnNtHO+XSwVm YNtqjcAGFKpweoN//kQwCgYIKoZIzj0EAwIDRwAwRAIgIYSaUA/IB81gjbIw/hUV 70twxJr5EcgOo0hLp3Jm+EYCIFDO3NNcgmURbJ1kfoS3N/0O+irUtoPw38YoNkqJ h5wi -----END CERTIFICATE----- ` // Self-signed certificate using ECDSA with SHA256 & secp384r1 var ecdsaSHA256p384CertPem = ` -----BEGIN CERTIFICATE----- MIICSjCCAdECCQDje/no7mXkVzAKBggqhkjOPQQDAjCBjjELMAkGA1UEBhMCVVMx EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDAS BgNVBAoMC0dvb2dsZSwgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIxMDYxMDM0 WhcNMjIwNTE5MDYxMDM0WjCBjjELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDASBgNVBAoMC0dvb2dsZSwg SW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEGCSqGSIb3DQEJARYUZ29s YW5nLWRldkBnbWFpbC5jb20wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAARRuzRNIKRK jIktEmXanNmrTR/q/FaHXLhWRZ6nHWe26Fw7Rsrbk+VjGy4vfWtNn7xSFKrOu5ze qxKnmE0h5E480MNgrUiRkaGO2GMJJVmxx20aqkXOk59U8yGA4CghE6MwCgYIKoZI zj0EAwIDZwAwZAIwBZEN8gvmRmfeP/9C1PRLzODIY4JqWub2PLRT4mv9GU+yw3Gr PU9A3CHMdEcdw/MEAjBBO1lId8KOCh9UZunsSMfqXiVurpzmhWd6VYZ/32G+M+Mh 3yILeYQzllt/g0rKVRk= -----END CERTIFICATE----- ` // Self-signed certificate using ECDSA with SHA384 & secp521r1 var ecdsaSHA384p521CertPem = ` -----BEGIN CERTIFICATE----- MIICljCCAfcCCQDhp1AFD/ahKjAKBggqhkjOPQQDAzCBjjELMAkGA1UEBhMCVVMx EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDAS BgNVBAoMC0dvb2dsZSwgSW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEG CSqGSIb3DQEJARYUZ29sYW5nLWRldkBnbWFpbC5jb20wHhcNMTIwNTIxMTUwNDI5 WhcNMjIwNTE5MTUwNDI5WjCBjjELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlm b3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxFDASBgNVBAoMC0dvb2dsZSwg SW5jMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTEjMCEGCSqGSIb3DQEJARYUZ29s YW5nLWRldkBnbWFpbC5jb20wgZswEAYHKoZIzj0CAQYFK4EEACMDgYYABACqx9Rv IssRs1LWYcNN+WffwlHw4Tv3y8/LIAA9MF1ZScIonU9nRMxt4a2uGJVCPDw6JHpz PaYc0E9puLoE9AfKpwFr59Jkot7dBg55SKPEFkddoip/rvmN7NPAWjMBirOwjOkm 8FPthvPhGPqsu9AvgVuHu3PosWiHGNrhh379pva8MzAKBggqhkjOPQQDAwOBjAAw gYgCQgEHNmswkUdPpHqrVxp9PvLVl+xxPuHBkT+75z9JizyxtqykHQo9Uh6SWCYH BF9KLolo01wMt8DjoYP5Fb3j5MH7xwJCAbWZzTOp4l4DPkIvAh4LeC4VWbwPPyqh kBg71w/iEcSY3wUKgHGcJJrObZw7wys91I5kENljqw/Samdr3ka+jBJa -----END CERTIFICATE----- ` var ecdsaTests = []struct { sigAlgo SignatureAlgorithm pemCert string }{ {ECDSAWithSHA256, ecdsaSHA256p256CertPem}, {ECDSAWithSHA256, ecdsaSHA256p384CertPem}, {ECDSAWithSHA384, ecdsaSHA384p521CertPem}, } func TestECDSA(t *testing.T) { for i, test := range ecdsaTests { pemBlock, _ := pem.Decode([]byte(test.pemCert)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Errorf("%d: failed to parse certificate: %s", i, err) continue } if sa := cert.SignatureAlgorithm; sa != test.sigAlgo { t.Errorf("%d: signature algorithm is %v, want %v", i, sa, test.sigAlgo) } if parsedKey, ok := cert.PublicKey.(*ecdsa.PublicKey); !ok { t.Errorf("%d: wanted an ECDSA public key but found: %#v", i, parsedKey) } if pka := cert.PublicKeyAlgorithm; pka != ECDSA { t.Errorf("%d: public key algorithm is %v, want ECDSA", i, pka) } if err = cert.CheckSignatureFrom(cert); err != nil { t.Errorf("%d: certificate verification failed: %s", i, err) } } } // Self-signed certificate using DSA with SHA1 var dsaCertPem = `-----BEGIN CERTIFICATE----- MIIEDTCCA82gAwIBAgIJALHPghaoxeDhMAkGByqGSM44BAMweTELMAkGA1UEBhMC VVMxCzAJBgNVBAgTAk5DMQ8wDQYDVQQHEwZOZXd0b24xFDASBgNVBAoTC0dvb2ds ZSwgSW5jMRIwEAYDVQQDEwlKb24gQWxsaWUxIjAgBgkqhkiG9w0BCQEWE2pvbmFs bGllQGdvb2dsZS5jb20wHhcNMTEwNTE0MDMwMTQ1WhcNMTEwNjEzMDMwMTQ1WjB5 MQswCQYDVQQGEwJVUzELMAkGA1UECBMCTkMxDzANBgNVBAcTBk5ld3RvbjEUMBIG A1UEChMLR29vZ2xlLCBJbmMxEjAQBgNVBAMTCUpvbiBBbGxpZTEiMCAGCSqGSIb3 DQEJARYTam9uYWxsaWVAZ29vZ2xlLmNvbTCCAbcwggEsBgcqhkjOOAQBMIIBHwKB gQC8hLUnQ7FpFYu4WXTj6DKvXvz8QrJkNJCVMTpKAT7uBpobk32S5RrPKXocd4gN 8lyGB9ggS03EVlEwXvSmO0DH2MQtke2jl9j1HLydClMf4sbx5V6TV9IFw505U1iW jL7awRMgxge+FsudtJK254FjMFo03ZnOQ8ZJJ9E6AEDrlwIVAJpnBn9moyP11Ox5 Asc/5dnjb6dPAoGBAJFHd4KVv1iTVCvEG6gGiYop5DJh28hUQcN9kul+2A0yPUSC X93oN00P8Vh3eYgSaCWZsha7zDG53MrVJ0Zf6v/X/CoZNhLldeNOepivTRAzn+Rz kKUYy5l1sxYLHQKF0UGNCXfFKZT0PCmgU+PWhYNBBMn6/cIh44vp85ideo5CA4GE AAKBgFmifCafzeRaohYKXJgMGSEaggCVCRq5xdyDCat+wbOkjC4mfG01/um3G8u5 LxasjlWRKTR/tcAL7t0QuokVyQaYdVypZXNaMtx1db7YBuHjj3aP+8JOQRI9xz8c bp5NDJ5pISiFOv4p3GZfqZPcqckDt78AtkQrmnal2txhhjF6o4HeMIHbMB0GA1Ud DgQWBBQVyyr7hO11ZFFpWX50298Sa3V+rzCBqwYDVR0jBIGjMIGggBQVyyr7hO11 ZFFpWX50298Sa3V+r6F9pHsweTELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAk5DMQ8w DQYDVQQHEwZOZXd0b24xFDASBgNVBAoTC0dvb2dsZSwgSW5jMRIwEAYDVQQDEwlK b24gQWxsaWUxIjAgBgkqhkiG9w0BCQEWE2pvbmFsbGllQGdvb2dsZS5jb22CCQCx z4IWqMXg4TAMBgNVHRMEBTADAQH/MAkGByqGSM44BAMDLwAwLAIUPtn/5j8Q1jJI 7ggOIsgrhgUdjGQCFCsmDq1H11q9+9Wp9IMeGrTSKHIM -----END CERTIFICATE----- ` func TestParseCertificateWithDsaPublicKey(t *testing.T) { expectedKey := &dsa.PublicKey{ Parameters: dsa.Parameters{ P: bigFromHexString("00BC84B52743B169158BB85974E3E832AF5EFCFC42B264349095313A4A013EEE069A1B937D92E51ACF297A1C77880DF25C8607D8204B4DC45651305EF4A63B40C7D8C42D91EDA397D8F51CBC9D0A531FE2C6F1E55E9357D205C39D395358968CBEDAC11320C607BE16CB9DB492B6E78163305A34DD99CE43C64927D13A0040EB97"), Q: bigFromHexString("009A67067F66A323F5D4EC7902C73FE5D9E36FA74F"), G: bigFromHexString("009147778295BF5893542BC41BA806898A29E43261DBC85441C37D92E97ED80D323D44825FDDE8374D0FF15877798812682599B216BBCC31B9DCCAD527465FEAFFD7FC2A193612E575E34E7A98AF4D10339FE47390A518CB9975B3160B1D0285D1418D0977C52994F43C29A053E3D685834104C9FAFDC221E38BE9F3989D7A8E42"), }, Y: bigFromHexString("59A27C269FCDE45AA2160A5C980C19211A820095091AB9C5DC8309AB7EC1B3A48C2E267C6D35FEE9B71BCBB92F16AC8E559129347FB5C00BEEDD10BA8915C90698755CA965735A32DC7575BED806E1E38F768FFBC24E41123DC73F1C6E9E4D0C9E692128853AFE29DC665FA993DCA9C903B7BF00B6442B9A76A5DADC6186317A"), } pemBlock, _ := pem.Decode([]byte(dsaCertPem)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Fatalf("Failed to parse certificate: %s", err) } if cert.PublicKeyAlgorithm != DSA { t.Errorf("Parsed key algorithm was not DSA") } parsedKey, ok := cert.PublicKey.(*dsa.PublicKey) if !ok { t.Fatalf("Parsed key was not a DSA key: %s", err) } if expectedKey.Y.Cmp(parsedKey.Y) != 0 || expectedKey.P.Cmp(parsedKey.P) != 0 || expectedKey.Q.Cmp(parsedKey.Q) != 0 || expectedKey.G.Cmp(parsedKey.G) != 0 { t.Fatal("Parsed key differs from expected key") } } func TestParseCertificateWithDSASignatureAlgorithm(t *testing.T) { pemBlock, _ := pem.Decode([]byte(dsaCertPem)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Fatalf("Failed to parse certificate: %s", err) } if cert.SignatureAlgorithm != DSAWithSHA1 { t.Errorf("Parsed signature algorithm was not DSAWithSHA1") } } func TestVerifyCertificateWithDSASignature(t *testing.T) { pemBlock, _ := pem.Decode([]byte(dsaCertPem)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Fatalf("Failed to parse certificate: %s", err) } // test cert is self-signed if err = cert.CheckSignatureFrom(cert); err == nil { t.Fatalf("Expected error verifying DSA certificate") } } var rsaPSSSelfSignedPEM = `-----BEGIN CERTIFICATE----- MIIGHjCCA9KgAwIBAgIBdjBBBgkqhkiG9w0BAQowNKAPMA0GCWCGSAFlAwQCAQUA oRwwGgYJKoZIhvcNAQEIMA0GCWCGSAFlAwQCAQUAogMCASAwbjELMAkGA1UEBhMC SlAxHDAaBgNVBAoME0phcGFuZXNlIEdvdmVybm1lbnQxKDAmBgNVBAsMH1RoZSBN aW5pc3RyeSBvZiBGb3JlaWduIEFmZmFpcnMxFzAVBgNVBAMMDmUtcGFzc3BvcnRD U0NBMB4XDTEzMDUxNDA1MDczMFoXDTI5MDUxNDA1MDczMFowbjELMAkGA1UEBhMC SlAxHDAaBgNVBAoME0phcGFuZXNlIEdvdmVybm1lbnQxKDAmBgNVBAsMH1RoZSBN aW5pc3RyeSBvZiBGb3JlaWduIEFmZmFpcnMxFzAVBgNVBAMMDmUtcGFzc3BvcnRD U0NBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAx/E3WRVxcCDXhoST 8nVSLjW6hwM4Ni99AegWzcGtfGFo0zjFA1Cl5URqxauvYu3gQgQHBGA1CovWeGrl yVSRzOL1imcYsSgLOcnhVYB3Xcrof4ebv9+W+TwNdc9YzAwcj8rNd5nP6PKXIQ+W PCkEOXdyb80YEnxuT+NPjkVfFSPBS7QYZpvT2fwy4fZ0eh48253+7VleSmTO0mqj 7TlzaG56q150SLZbhpOd8jD8bM/wACnLCPR88wj4hCcDLEwoLyY85HJCTIQQMnoT UpqyzEeupPREIm6yi4d8C9YqIWFn2YTnRcWcmMaJLzq+kYwKoudfnoC6RW2vzZXn defQs68IZuK+uALu9G3JWGPgu0CQGj0JNDT8zkiDV++4eNrZczWKjr1YnAL+VbLK bApwL2u19l2WDpfUklimhWfraqHNIUKU6CjZOG31RzXcplIj0mtqs0E1r7r357Es yFoB28iNo4cz1lCulh0E4WJzWzLZcT4ZspHHRCFyvYnXoibXEV1nULq8ByKKG0FS 7nn4SseoV+8PvjHLPhmHGMvi4mxkbcXdV3wthHT1/HXdqY84A4xHWt1+sB/TpTek tDhFlEfcUygvTu58UtOnysomOVVeERmi7WSujfzKsGJAJYeetiA5R+zX7BxeyFVE qW0zh1Tkwh0S8LRe5diJh4+6FG0CAwEAAaNfMF0wHQYDVR0OBBYEFD+oahaikBTV Urk81Uz7kRS2sx0aMA4GA1UdDwEB/wQEAwIBBjAYBgNVHSAEETAPMA0GCyqDCIaP fgYFAQEBMBIGA1UdEwEB/wQIMAYBAf8CAQAwQQYJKoZIhvcNAQEKMDSgDzANBglg hkgBZQMEAgEFAKEcMBoGCSqGSIb3DQEBCDANBglghkgBZQMEAgEFAKIDAgEgA4IC AQAaxWBQn5CZuNBfyzL57mn31ukHUFd61OMROSX3PT7oCv1Dy+C2AdRlxOcbN3/n li0yfXUUqiY3COlLAHKRlkr97mLtxEFoJ0R8nVN2IQdChNQM/XSCzSGyY8NVa1OR TTpEWLnexJ9kvIdbFXwUqdTnAkOI0m7Rg8j+E+lRRHg1xDAA1qKttrtUj3HRQWf3 kNTu628SiMvap6aIdncburaK56MP7gkR1Wr/ichOfjIA3Jgw2PapI31i0GqeMd66 U1+lC9FeyMAJpuSVp/SoiYzYo+79SFcVoM2yw3yAnIKg7q9GLYYqzncdykT6C06c 15gWFI6igmReAsD9ITSvYh0jLrLHfEYcPTOD3ZXJ4EwwHtWSoO3gq1EAtOYKu/Lv C8zfBsZcFdsHvsSiYeBU8Oioe42mguky3Ax9O7D805Ek6R68ra07MW/G4YxvV7IN 2BfSaYy8MX9IG0ZMIOcoc0FeF5xkFmJ7kdrlTaJzC0IE9PNxNaH5QnOAFB8vxHcO FioUxb6UKdHcPLR1VZtAdTdTMjSJxUqD/35Cdfqs7oDJXz8f6TXO2Tdy6G++YUs9 qsGZWxzFvvkXUkQSl0dQQ5jO/FtUJcAVXVVp20LxPemfatAHpW31WdJYeWSQWky2 +f9b5TXKXVyjlUL7uHxowWrT2AtTchDH22wTEtqLEF9Z3Q== -----END CERTIFICATE-----` // openssl req -newkey rsa:2048 -keyout test.key -sha256 -sigopt \ // rsa_padding_mode:pss -sigopt rsa_pss_saltlen:32 -sigopt rsa_mgf1_md:sha256 \ // -x509 -days 3650 -nodes -subj '/C=US/ST=CA/L=SF/O=Test/CN=Test' -out \ // test.pem var rsaPSSSelfSignedOpenSSL110PEM = `-----BEGIN CERTIFICATE----- MIIDwDCCAnigAwIBAgIJAM9LAMHTE5xpMD0GCSqGSIb3DQEBCjAwoA0wCwYJYIZI AWUDBAIBoRowGAYJKoZIhvcNAQEIMAsGCWCGSAFlAwQCAaIDAgEgMEUxCzAJBgNV BAYTAlVTMQswCQYDVQQIDAJDQTELMAkGA1UEBwwCU0YxDTALBgNVBAoMBFRlc3Qx DTALBgNVBAMMBFRlc3QwHhcNMTgwMjIyMjIxMzE4WhcNMjgwMjIwMjIxMzE4WjBF MQswCQYDVQQGEwJVUzELMAkGA1UECAwCQ0ExCzAJBgNVBAcMAlNGMQ0wCwYDVQQK DARUZXN0MQ0wCwYDVQQDDARUZXN0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB CgKCAQEA4Zrsydod+GoTAJLLutWNF87qhhVPBsK1zB1Gj+NAAe4+VbrZ1E41H1wp qITx7DA8DRtJEf+NqrTAnAdZWBG/tAOA5LfXVax0ZSQtLnYLSeylLoMtDyY3eFAj TmuTOoyVy6raktowCnHCh01NsstqqTfrx6SbmzOmDmKTkq/I+7K0MCVsn41xRDVM +ShD0WGFGioEGoiWnFSWupxJDA3Q6jIDEygVwNKHwnhv/2NgG2kqZzrZSQA67en0 iKAXtoDNPpmyD5oS9YbEJ+2Nbm7oLeON30i6kZvXKIzJXx+UWViazHZqnsi5rQ8G RHF+iVFXsqd0MzDKmkKOT5FDhrsbKQIDAQABo1MwUTAdBgNVHQ4EFgQU9uFY/nlg gLH00NBnr/o7QvpN9ugwHwYDVR0jBBgwFoAU9uFY/nlggLH00NBnr/o7QvpN9ugw DwYDVR0TAQH/BAUwAwEB/zA9BgkqhkiG9w0BAQowMKANMAsGCWCGSAFlAwQCAaEa MBgGCSqGSIb3DQEBCDALBglghkgBZQMEAgGiAwIBIAOCAQEAhJzpwxBNGKvzKWDe WLqv6RMrl/q4GcH3b7M9wjxe0yOm4F+Tb2zJ7re4h+D39YkJf8cX1NV9UQVu6z4s Fvo2kmlR0qZOXAg5augmCQ1xS0WHFoF6B52anNzHkZQbAIYJ3kGoFsUHzs7Sz7F/ 656FsRpHA9UzJQ3avPPMrA4Y4aoJ7ANJ6XIwTrdWrhULOVuvYRLCl4CdTVztVFX6 wxX8nS1ISYd8jXPUMgsBKVbWufvLoIymMJW8CZbpprVZel5zFn0bmPrON8IHS30w Gs+ITJjKEnZgXmAQ25SLKVzkZkBcGANs2GsdHNJ370Puisy0FIPD2NXR5uASAf7J +w9fjQ== -----END CERTIFICATE-----` func TestRSAPSSSelfSigned(t *testing.T) { for i, pemBlock := range []string{rsaPSSSelfSignedPEM, rsaPSSSelfSignedOpenSSL110PEM} { der, _ := pem.Decode([]byte(pemBlock)) if der == nil { t.Errorf("#%d: failed to find PEM block", i) continue } cert, err := ParseCertificate(der.Bytes) if err != nil { t.Errorf("#%d: failed to parse: %s", i, err) continue } if err = cert.CheckSignatureFrom(cert); err != nil { t.Errorf("#%d: signature check failed: %s", i, err) continue } } } const ed25519Certificate = ` Certificate: Data: Version: 3 (0x2) Serial Number: 0c:83:d8:21:2b:82:cb:23:98:23:63:e2:f7:97:8a:43:5b:f3:bd:92 Signature Algorithm: ED25519 Issuer: CN = Ed25519 test certificate Validity Not Before: May 6 17:27:16 2019 GMT Not After : Jun 5 17:27:16 2019 GMT Subject: CN = Ed25519 test certificate Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: 36:29:c5:6c:0d:4f:14:6c:81:d0:ff:75:d3:6a:70: 5f:69:cd:0f:4d:66:d5:da:98:7e:82:49:89:a3:8a: 3c:fa X509v3 extensions: X509v3 Subject Key Identifier: 09:3B:3A:9D:4A:29:D8:95:FF:68:BE:7B:43:54:72:E0:AD:A2:E3:AE X509v3 Authority Key Identifier: keyid:09:3B:3A:9D:4A:29:D8:95:FF:68:BE:7B:43:54:72:E0:AD:A2:E3:AE X509v3 Basic Constraints: critical CA:TRUE Signature Algorithm: ED25519 53:a5:58:1c:2c:3b:2a:9e:ac:9d:4e:a5:1d:5f:5d:6d:a6:b5: 08:de:12:82:f3:97:20:ae:fa:d8:98:f4:1a:83:32:6b:91:f5: 24:1d:c4:20:7f:2c:e2:4d:da:13:3b:6d:54:1a:d2:a8:28:dc: 60:b9:d4:f4:78:4b:3c:1c:91:00 -----BEGIN CERTIFICATE----- MIIBWzCCAQ2gAwIBAgIUDIPYISuCyyOYI2Pi95eKQ1vzvZIwBQYDK2VwMCMxITAf BgNVBAMMGEVkMjU1MTkgdGVzdCBjZXJ0aWZpY2F0ZTAeFw0xOTA1MDYxNzI3MTZa Fw0xOTA2MDUxNzI3MTZaMCMxITAfBgNVBAMMGEVkMjU1MTkgdGVzdCBjZXJ0aWZp Y2F0ZTAqMAUGAytlcAMhADYpxWwNTxRsgdD/ddNqcF9pzQ9NZtXamH6CSYmjijz6 o1MwUTAdBgNVHQ4EFgQUCTs6nUop2JX/aL57Q1Ry4K2i464wHwYDVR0jBBgwFoAU CTs6nUop2JX/aL57Q1Ry4K2i464wDwYDVR0TAQH/BAUwAwEB/zAFBgMrZXADQQBT pVgcLDsqnqydTqUdX11tprUI3hKC85cgrvrYmPQagzJrkfUkHcQgfyziTdoTO21U GtKoKNxgudT0eEs8HJEA -----END CERTIFICATE-----` func TestEd25519SelfSigned(t *testing.T) { der, _ := pem.Decode([]byte(ed25519Certificate)) if der == nil { t.Fatalf("Failed to find PEM block") } cert, err := ParseCertificate(der.Bytes) if err != nil { t.Fatalf("Failed to parse: %s", err) } if cert.PublicKeyAlgorithm != Ed25519 { t.Fatalf("Parsed key algorithm was not Ed25519") } parsedKey, ok := cert.PublicKey.(ed25519.PublicKey) if !ok { t.Fatalf("Parsed key was not an Ed25519 key: %s", err) } if len(parsedKey) != ed25519.PublicKeySize { t.Fatalf("Invalid Ed25519 key") } if err = cert.CheckSignatureFrom(cert); err != nil { t.Fatalf("Signature check failed: %s", err) } } const pemCertificate = `-----BEGIN CERTIFICATE----- MIIDATCCAemgAwIBAgIRAKQkkrFx1T/dgB/Go/xBM5swDQYJKoZIhvcNAQELBQAw EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0xNjA4MTcyMDM2MDdaFw0xNzA4MTcyMDM2 MDdaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw ggEKAoIBAQDAoJtjG7M6InsWwIo+l3qq9u+g2rKFXNu9/mZ24XQ8XhV6PUR+5HQ4 jUFWC58ExYhottqK5zQtKGkw5NuhjowFUgWB/VlNGAUBHtJcWR/062wYrHBYRxJH qVXOpYKbIWwFKoXu3hcpg/CkdOlDWGKoZKBCwQwUBhWE7MDhpVdQ+ZljUJWL+FlK yQK5iRsJd5TGJ6VUzLzdT4fmN2DzeK6GLeyMpVpU3sWV90JJbxWQ4YrzkKzYhMmB EcpXTG2wm+ujiHU/k2p8zlf8Sm7VBM/scmnMFt0ynNXop4FWvJzEm1G0xD2t+e2I 5Utr04dOZPCgkm++QJgYhtZvgW7ZZiGTAgMBAAGjUjBQMA4GA1UdDwEB/wQEAwIF oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBsGA1UdEQQUMBKC EHRlc3QuZXhhbXBsZS5jb20wDQYJKoZIhvcNAQELBQADggEBADpqKQxrthH5InC7 X96UP0OJCu/lLEMkrjoEWYIQaFl7uLPxKH5AmQPH4lYwF7u7gksR7owVG9QU9fs6 1fK7II9CVgCd/4tZ0zm98FmU4D0lHGtPARrrzoZaqVZcAvRnFTlPX5pFkPhVjjai /mkxX9LpD8oK1445DFHxK5UjLMmPIIWd8EOi+v5a+hgGwnJpoW7hntSl8kHMtTmy fnnktsblSUV4lRCit0ymC7Ojhe+gzCCwkgs5kDzVVag+tnl/0e2DloIjASwOhpbH KVcg7fBd484ht/sS+l0dsB4KDOSpd8JzVDMF8OZqlaydizoJO0yWr9GbCN1+OKq5 EhLrEqU= -----END CERTIFICATE-----` const ed25519CRLCertificate = ` Certificate: Data: Version: 3 (0x2) Serial Number: 7a:07:a0:9d:14:04:16:fc:1f:d8:e5:fe:d1:1d:1f:8d Signature Algorithm: ED25519 Issuer: CN = Ed25519 CRL Test CA Validity Not Before: Oct 30 01:20:20 2019 GMT Not After : Dec 31 23:59:59 9999 GMT Subject: CN = Ed25519 CRL Test CA Subject Public Key Info: Public Key Algorithm: ED25519 ED25519 Public-Key: pub: 95:73:3b:b0:06:2a:31:5a:b6:a7:a6:6e:ef:71:df: ac:6f:6b:39:03:85:5e:63:4b:f8:a6:0f:68:c6:6f: 75:21 X509v3 extensions: X509v3 Key Usage: critical Digital Signature, Certificate Sign, CRL Sign X509v3 Extended Key Usage: TLS Web Client Authentication, TLS Web Server Authentication, OCSP Signing X509v3 Basic Constraints: critical CA:TRUE X509v3 Subject Key Identifier: B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60 X509v3 Authority Key Identifier: keyid:B7:17:DA:16:EA:C5:ED:1F:18:49:44:D3:D2:E3:A0:35:0A:81:93:60 Signature Algorithm: ED25519 fc:3e:14:ea:bb:70:c2:6f:38:34:70:bc:c8:a7:f4:7c:0d:1e: 28:d7:2a:9f:22:8a:45:e8:02:76:84:1e:2d:64:2d:1e:09:b5: 29:71:1f:95:8a:4e:79:87:51:60:9a:e7:86:40:f6:60:c7:d1: ee:68:76:17:1d:90:cc:92:93:07 -----BEGIN CERTIFICATE----- MIIBijCCATygAwIBAgIQegegnRQEFvwf2OX+0R0fjTAFBgMrZXAwHjEcMBoGA1UE AxMTRWQyNTUxOSBDUkwgVGVzdCBDQTAgFw0xOTEwMzAwMTIwMjBaGA85OTk5MTIz MTIzNTk1OVowHjEcMBoGA1UEAxMTRWQyNTUxOSBDUkwgVGVzdCBDQTAqMAUGAytl cAMhAJVzO7AGKjFatqembu9x36xvazkDhV5jS/imD2jGb3Uho4GNMIGKMA4GA1Ud DwEB/wQEAwIBhjAnBgNVHSUEIDAeBggrBgEFBQcDAgYIKwYBBQUHAwEGCCsGAQUF BwMJMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFLcX2hbqxe0fGElE09LjoDUK gZNgMB8GA1UdIwQYMBaAFLcX2hbqxe0fGElE09LjoDUKgZNgMAUGAytlcANBAPw+ FOq7cMJvODRwvMin9HwNHijXKp8iikXoAnaEHi1kLR4JtSlxH5WKTnmHUWCa54ZA 9mDH0e5odhcdkMySkwc= -----END CERTIFICATE-----` var ed25519CRLKey = testingKey(`-----BEGIN TEST KEY----- MC4CAQAwBQYDK2VwBCIEINdKh2096vUBYu4EIFpjShsUSh3vimKya1sQ1YTT4RZG -----END TEST KEY-----`) func TestCRLCreation(t *testing.T) { block, _ := pem.Decode([]byte(pemPrivateKey)) privRSA, _ := ParsePKCS1PrivateKey(block.Bytes) block, _ = pem.Decode([]byte(pemCertificate)) certRSA, _ := ParseCertificate(block.Bytes) block, _ = pem.Decode([]byte(ed25519CRLKey)) privEd25519, _ := ParsePKCS8PrivateKey(block.Bytes) block, _ = pem.Decode([]byte(ed25519CRLCertificate)) certEd25519, _ := ParseCertificate(block.Bytes) tests := []struct { name string priv any cert *Certificate }{ {"RSA CA", privRSA, certRSA}, {"Ed25519 CA", privEd25519, certEd25519}, } loc := time.FixedZone("Oz/Atlantis", int((2 * time.Hour).Seconds())) now := time.Unix(1000, 0).In(loc) nowUTC := now.UTC() expiry := time.Unix(10000, 0) revokedCerts := []pkix.RevokedCertificate{ { SerialNumber: big.NewInt(1), RevocationTime: nowUTC, }, { SerialNumber: big.NewInt(42), // RevocationTime should be converted to UTC before marshaling. RevocationTime: now, }, } expectedCerts := []pkix.RevokedCertificate{ { SerialNumber: big.NewInt(1), RevocationTime: nowUTC, }, { SerialNumber: big.NewInt(42), RevocationTime: nowUTC, }, } for _, test := range tests { crlBytes, err := test.cert.CreateCRL(rand.Reader, test.priv, revokedCerts, now, expiry) if err != nil { t.Errorf("%s: error creating CRL: %s", test.name, err) continue } parsedCRL, err := ParseDERCRL(crlBytes) if err != nil { t.Errorf("%s: error reparsing CRL: %s", test.name, err) continue } if !reflect.DeepEqual(parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) { t.Errorf("%s: RevokedCertificates mismatch: got %v; want %v.", test.name, parsedCRL.TBSCertList.RevokedCertificates, expectedCerts) } } } func fromBase64(in string) []byte { out := make([]byte, base64.StdEncoding.DecodedLen(len(in))) n, err := base64.StdEncoding.Decode(out, []byte(in)) if err != nil { panic("failed to base64 decode") } return out[:n] } func TestParseDERCRL(t *testing.T) { derBytes := fromBase64(derCRLBase64) certList, err := ParseDERCRL(derBytes) if err != nil { t.Errorf("error parsing: %s", err) return } numCerts := len(certList.TBSCertList.RevokedCertificates) expected := 88 if numCerts != expected { t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected) } if certList.HasExpired(time.Unix(1302517272, 0)) { t.Errorf("CRL has expired (but shouldn't have)") } // Can't check the signature here without a package cycle. } func TestCRLWithoutExpiry(t *testing.T) { derBytes := fromBase64("MIHYMIGZMAkGByqGSM44BAMwEjEQMA4GA1UEAxMHQ2FybERTUxcNOTkwODI3MDcwMDAwWjBpMBMCAgDIFw05OTA4MjIwNzAwMDBaMBMCAgDJFw05OTA4MjIwNzAwMDBaMBMCAgDTFw05OTA4MjIwNzAwMDBaMBMCAgDSFw05OTA4MjIwNzAwMDBaMBMCAgDUFw05OTA4MjQwNzAwMDBaMAkGByqGSM44BAMDLwAwLAIUfmVSdjP+NHMX0feW+aDU2G1cfT0CFAJ6W7fVWxjBz4fvftok8yqDnDWh") certList, err := ParseDERCRL(derBytes) if err != nil { t.Fatal(err) } if !certList.TBSCertList.NextUpdate.IsZero() { t.Errorf("NextUpdate is not the zero value") } } func TestParsePEMCRL(t *testing.T) { pemBytes := fromBase64(pemCRLBase64) certList, err := ParseCRL(pemBytes) if err != nil { t.Errorf("error parsing: %s", err) return } numCerts := len(certList.TBSCertList.RevokedCertificates) expected := 2 if numCerts != expected { t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected) } if certList.HasExpired(time.Unix(1302517272, 0)) { t.Errorf("CRL has expired (but shouldn't have)") } // Can't check the signature here without a package cycle. } func TestImports(t *testing.T) { if testing.Short() { t.Skip("skipping in -short mode") } if out, err := testenv.Command(t, testenv.GoToolPath(t), "run", "x509_test_import.go").CombinedOutput(); err != nil { t.Errorf("failed to run x509_test_import.go: %s\n%s", err, out) } } const derCRLBase64 = "MIINqzCCDJMCAQEwDQYJKoZIhvcNAQEFBQAwVjEZMBcGA1UEAxMQUEtJIEZJTk1FQ0NBTklDQTEVMBMGA1UEChMMRklOTUVDQ0FOSUNBMRUwEwYDVQQLEwxGSU5NRUNDQU5JQ0ExCzAJBgNVBAYTAklUFw0xMTA1MDQxNjU3NDJaFw0xMTA1MDQyMDU3NDJaMIIMBzAhAg4Ze1od49Lt1qIXBydAzhcNMDkwNzE2MDg0MzIyWjAAMCECDl0HSL9bcZ1Ci/UHJ0DPFw0wOTA3MTYwODQzMTNaMAAwIQIOESB9tVAmX3cY7QcnQNAXDTA5MDcxNjA4NDUyMlowADAhAg4S1tGAQ3mHt8uVBydA1RcNMDkwODA0MTUyNTIyWjAAMCECDlQ249Y7vtC25ScHJ0DWFw0wOTA4MDQxNTI1MzdaMAAwIQIOISMop3NkA4PfYwcnQNkXDTA5MDgwNDExMDAzNFowADAhAg56/BMoS29KEShTBydA2hcNMDkwODA0MTEwMTAzWjAAMCECDnBp/22HPH5CSWoHJ0DbFw0wOTA4MDQxMDU0NDlaMAAwIQIOV9IP+8CD8bK+XAcnQNwXDTA5MDgwNDEwNTcxN1owADAhAg4v5aRz0IxWqYiXBydA3RcNMDkwODA0MTA1NzQ1WjAAMCECDlOU34VzvZAybQwHJ0DeFw0wOTA4MDQxMDU4MjFaMAAwIAINO4CD9lluIxcwBydBAxcNMDkwNzIyMTUzMTU5WjAAMCECDgOllfO8Y1QA7/wHJ0ExFw0wOTA3MjQxMTQxNDNaMAAwIQIOJBX7jbiCdRdyjgcnQUQXDTA5MDkxNjA5MzAwOFowADAhAg5iYSAgmDrlH/RZBydBRRcNMDkwOTE2MDkzMDE3WjAAMCECDmu6k6srP3jcMaQHJ0FRFw0wOTA4MDQxMDU2NDBaMAAwIQIOX8aHlO0V+WVH4QcnQVMXDTA5MDgwNDEwNTcyOVowADAhAg5flK2rg3NnsRgDBydBzhcNMTEwMjAxMTUzMzQ2WjAAMCECDg35yJDL1jOPTgoHJ0HPFw0xMTAyMDExNTM0MjZaMAAwIQIOMyFJ6+e9iiGVBQcnQdAXDTA5MDkxODEzMjAwNVowADAhAg5Emb/Oykucmn8fBydB1xcNMDkwOTIxMTAxMDQ3WjAAMCECDjQKCncV+MnUavMHJ0HaFw0wOTA5MjIwODE1MjZaMAAwIQIOaxiFUt3dpd+tPwcnQfQXDTEwMDYxODA4NDI1MVowADAhAg5G7P8nO0tkrMt7BydB9RcNMTAwNjE4MDg0MjMwWjAAMCECDmTCC3SXhmDRst4HJ0H2Fw0wOTA5MjgxMjA3MjBaMAAwIQIOHoGhUr/pRwzTKgcnQfcXDTA5MDkyODEyMDcyNFowADAhAg50wrcrCiw8mQmPBydCBBcNMTAwMjE2MTMwMTA2WjAAMCECDifWmkvwyhEqwEcHJ0IFFw0xMDAyMTYxMzAxMjBaMAAwIQIOfgPmlW9fg+osNgcnQhwXDTEwMDQxMzA5NTIwMFowADAhAg4YHAGuA6LgCk7tBydCHRcNMTAwNDEzMDk1MTM4WjAAMCECDi1zH1bxkNJhokAHJ0IsFw0xMDA0MTMwOTU5MzBaMAAwIQIOMipNccsb/wo2fwcnQi0XDTEwMDQxMzA5NTkwMFowADAhAg46lCmvPl4GpP6ABydCShcNMTAwMTE5MDk1MjE3WjAAMCECDjaTcaj+wBpcGAsHJ0JLFw0xMDAxMTkwOTUyMzRaMAAwIQIOOMC13EOrBuxIOQcnQloXDTEwMDIwMTA5NDcwNVowADAhAg5KmZl+krz4RsmrBydCWxcNMTAwMjAxMDk0NjQwWjAAMCECDmLG3zQJ/fzdSsUHJ0JiFw0xMDAzMDEwOTUxNDBaMAAwIQIOP39ksgHdojf4owcnQmMXDTEwMDMwMTA5NTExN1owADAhAg4LDQzvWNRlD6v9BydCZBcNMTAwMzAxMDk0NjIyWjAAMCECDkmNfeclaFhIaaUHJ0JlFw0xMDAzMDEwOTQ2MDVaMAAwIQIOT/qWWfpH/m8NTwcnQpQXDTEwMDUxMTA5MTgyMVowADAhAg5m/ksYxvCEgJSvBydClRcNMTAwNTExMDkxODAxWjAAMCECDgvf3Ohq6JOPU9AHJ0KWFw0xMDA1MTEwOTIxMjNaMAAwIQIOKSPas10z4jNVIQcnQpcXDTEwMDUxMTA5MjEwMlowADAhAg4mCWmhoZ3lyKCDBydCohcNMTEwNDI4MTEwMjI1WjAAMCECDkeiyRsBMK0Gvr4HJ0KjFw0xMTA0MjgxMTAyMDdaMAAwIQIOa09b/nH2+55SSwcnQq4XDTExMDQwMTA4Mjk0NlowADAhAg5O7M7iq7gGplr1BydCrxcNMTEwNDAxMDgzMDE3WjAAMCECDjlT6mJxUjTvyogHJ0K1Fw0xMTAxMjcxNTQ4NTJaMAAwIQIODS/l4UUFLe21NAcnQrYXDTExMDEyNzE1NDgyOFowADAhAg5lPRA0XdOUF6lSBydDHhcNMTEwMTI4MTQzNTA1WjAAMCECDixKX4fFGGpENwgHJ0MfFw0xMTAxMjgxNDM1MzBaMAAwIQIORNBkqsPnpKTtbAcnQ08XDTEwMDkwOTA4NDg0MlowADAhAg5QL+EMM3lohedEBydDUBcNMTAwOTA5MDg0ODE5WjAAMCECDlhDnHK+HiTRAXcHJ0NUFw0xMDEwMTkxNjIxNDBaMAAwIQIOdBFqAzq/INz53gcnQ1UXDTEwMTAxOTE2MjA0NFowADAhAg4OjR7s8MgKles1BydDWhcNMTEwMTI3MTY1MzM2WjAAMCECDmfR/elHee+d0SoHJ0NbFw0xMTAxMjcxNjUzNTZaMAAwIQIOBTKv2ui+KFMI+wcnQ5YXDTEwMDkxNTEwMjE1N1owADAhAg49F3c/GSah+oRUBydDmxcNMTEwMTI3MTczMjMzWjAAMCECDggv4I61WwpKFMMHJ0OcFw0xMTAxMjcxNzMyNTVaMAAwIQIOXx/Y8sEvwS10LAcnQ6UXDTExMDEyODExMjkzN1owADAhAg5LSLbnVrSKaw/9BydDphcNMTEwMTI4MTEyOTIwWjAAMCECDmFFoCuhKUeACQQHJ0PfFw0xMTAxMTExMDE3MzdaMAAwIQIOQTDdFh2fSPF6AAcnQ+AXDTExMDExMTEwMTcxMFowADAhAg5B8AOXX61FpvbbBydD5RcNMTAxMDA2MTAxNDM2WjAAMCECDh41P2Gmi7PkwI4HJ0PmFw0xMDEwMDYxMDE2MjVaMAAwIQIOWUHGLQCd+Ale9gcnQ/0XDTExMDUwMjA3NTYxMFowADAhAg5Z2c9AYkikmgWOBydD/hcNMTEwNTAyMDc1NjM0WjAAMCECDmf/UD+/h8nf+74HJ0QVFw0xMTA0MTUwNzI4MzNaMAAwIQIOICvj4epy3MrqfwcnRBYXDTExMDQxNTA3Mjg1NlowADAhAg4bouRMfOYqgv4xBydEHxcNMTEwMzA4MTYyNDI1WjAAMCECDhebWHGoKiTp7pEHJ0QgFw0xMTAzMDgxNjI0NDhaMAAwIQIOX+qnxxAqJ8LtawcnRDcXDTExMDEzMTE1MTIyOFowADAhAg4j0fICqZ+wkOdqBydEOBcNMTEwMTMxMTUxMTQxWjAAMCECDhmXjsV4SUpWtAMHJ0RLFw0xMTAxMjgxMTI0MTJaMAAwIQIODno/w+zG43kkTwcnREwXDTExMDEyODExMjM1MlowADAhAg4b1gc88767Fr+LBydETxcNMTEwMTI4MTEwMjA4WjAAMCECDn+M3Pa1w2nyFeUHJ0RQFw0xMTAxMjgxMDU4NDVaMAAwIQIOaduoyIH61tqybAcnRJUXDTEwMTIxNTA5NDMyMlowADAhAg4nLqQPkyi3ESAKBydElhcNMTAxMjE1MDk0MzM2WjAAMCECDi504NIMH8578gQHJ0SbFw0xMTAyMTQxNDA1NDFaMAAwIQIOGuaM8PDaC5u1egcnRJwXDTExMDIxNDE0MDYwNFowADAhAg4ehYq/BXGnB5PWBydEnxcNMTEwMjA0MDgwOTUxWjAAMCECDkSD4eS4FxW5H20HJ0SgFw0xMTAyMDQwODA5MjVaMAAwIQIOOCcb6ilYObt1egcnRKEXDTExMDEyNjEwNDEyOVowADAhAg58tISWCCwFnKGnBydEohcNMTEwMjA0MDgxMzQyWjAAMCECDn5rjtabY/L/WL0HJ0TJFw0xMTAyMDQxMTAzNDFaMAAwDQYJKoZIhvcNAQEFBQADggEBAGnF2Gs0+LNiYCW1Ipm83OXQYP/bd5tFFRzyz3iepFqNfYs4D68/QihjFoRHQoXEB0OEe1tvaVnnPGnEOpi6krwekquMxo4H88B5SlyiFIqemCOIss0SxlCFs69LmfRYvPPvPEhoXtQ3ZThe0UvKG83GOklhvGl6OaiRf4Mt+m8zOT4Wox/j6aOBK6cw6qKCdmD+Yj1rrNqFGg1CnSWMoD6S6mwNgkzwdBUJZ22BwrzAAo4RHa2Uy3ef1FjwD0XtU5N3uDSxGGBEDvOe5z82rps3E22FpAA8eYl8kaXtmWqyvYU0epp4brGuTxCuBMCAsxt/OjIjeNNQbBGkwxgfYA0=" const pemCRLBase64 = "LS0tLS1CRUdJTiBYNTA5IENSTC0tLS0tDQpNSUlCOWpDQ0FWOENBUUV3RFFZSktvWklodmNOQVFFRkJRQXdiREVhTUJnR0ExVUVDaE1SVWxOQklGTmxZM1Z5DQphWFI1SUVsdVl5NHhIakFjQmdOVkJBTVRGVkpUUVNCUWRXSnNhV01nVW05dmRDQkRRU0IyTVRFdU1Dd0dDU3FHDQpTSWIzRFFFSkFSWWZjbk5oYTJWdmJuSnZiM1J6YVdkdVFISnpZWE5sWTNWeWFYUjVMbU52YlJjTk1URXdNakl6DQpNVGt5T0RNd1doY05NVEV3T0RJeU1Ua3lPRE13V2pDQmpEQktBaEVBckRxb2g5RkhKSFhUN09QZ3V1bjQrQmNODQpNRGt4TVRBeU1UUXlOekE1V2pBbU1Bb0dBMVVkRlFRRENnRUpNQmdHQTFVZEdBUVJHQTh5TURBNU1URXdNakUwDQpNalExTlZvd1BnSVJBTEd6blowOTVQQjVhQU9MUGc1N2ZNTVhEVEF5TVRBeU16RTBOVEF4TkZvd0dqQVlCZ05WDQpIUmdFRVJnUE1qQXdNakV3TWpNeE5EVXdNVFJhb0RBd0xqQWZCZ05WSFNNRUdEQVdnQlQxVERGNlVRTS9MTmVMDQpsNWx2cUhHUXEzZzltekFMQmdOVkhSUUVCQUlDQUlRd0RRWUpLb1pJaHZjTkFRRUZCUUFEZ1lFQUZVNUFzNk16DQpxNVBSc2lmYW9iUVBHaDFhSkx5QytNczVBZ2MwYld5QTNHQWR4dXI1U3BQWmVSV0NCamlQL01FSEJXSkNsQkhQDQpHUmNxNXlJZDNFakRrYUV5eFJhK2k2N0x6dmhJNmMyOUVlNks5cFNZd2ppLzdSVWhtbW5Qclh0VHhsTDBsckxyDQptUVFKNnhoRFJhNUczUUE0Q21VZHNITnZicnpnbUNZcHZWRT0NCi0tLS0tRU5EIFg1MDkgQ1JMLS0tLS0NCg0K" func TestCreateCertificateRequest(t *testing.T) { random := rand.Reader ecdsa256Priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA key: %s", err) } ecdsa384Priv, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA key: %s", err) } ecdsa521Priv, err := ecdsa.GenerateKey(elliptic.P521(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA key: %s", err) } _, ed25519Priv, err := ed25519.GenerateKey(random) if err != nil { t.Fatalf("Failed to generate Ed25519 key: %s", err) } type test struct { name string priv any sigAlgo SignatureAlgorithm } tests := []test{ {"RSA", testPrivateKey, SHA256WithRSA}, {"RSA-PSS-SHA256", testPrivateKey, SHA256WithRSAPSS}, {"ECDSA-256", ecdsa256Priv, ECDSAWithSHA256}, {"ECDSA-384", ecdsa384Priv, ECDSAWithSHA256}, {"ECDSA-521", ecdsa521Priv, ECDSAWithSHA256}, {"Ed25519", ed25519Priv, PureEd25519}, } if fips140.Version() != "v1.0.0" { mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44()) if err != nil { t.Fatalf("Failed to generate ML-DSA-44 key: %s", err) } tests = append(tests, test{"ML-DSA-44", mldsaPriv, MLDSA44}) } for _, test := range tests { template := CertificateRequest{ Subject: pkix.Name{ CommonName: "test.example.com", Organization: []string{"Σ Acme Co"}, }, SignatureAlgorithm: test.sigAlgo, DNSNames: []string{"test.example.com"}, EmailAddresses: []string{"gopher@golang.org"}, IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")}, } derBytes, err := CreateCertificateRequest(random, &template, test.priv) if err != nil { t.Errorf("%s: failed to create certificate request: %s", test.name, err) continue } out, err := ParseCertificateRequest(derBytes) if err != nil { t.Errorf("%s: failed to create certificate request: %s", test.name, err) continue } err = out.CheckSignature() if err != nil { t.Errorf("%s: failed to check certificate request signature: %s", test.name, err) continue } if out.Subject.CommonName != template.Subject.CommonName { t.Errorf("%s: output subject common name and template subject common name don't match", test.name) } else if len(out.Subject.Organization) != len(template.Subject.Organization) { t.Errorf("%s: output subject organisation and template subject organisation don't match", test.name) } else if len(out.DNSNames) != len(template.DNSNames) { t.Errorf("%s: output DNS names and template DNS names don't match", test.name) } else if len(out.EmailAddresses) != len(template.EmailAddresses) { t.Errorf("%s: output email addresses and template email addresses don't match", test.name) } else if len(out.IPAddresses) != len(template.IPAddresses) { t.Errorf("%s: output IP addresses and template IP addresses names don't match", test.name) } } } func marshalAndParseCSR(t *testing.T, template *CertificateRequest) *CertificateRequest { t.Helper() derBytes, err := CreateCertificateRequest(rand.Reader, template, testPrivateKey) if err != nil { t.Fatal(err) } csr, err := ParseCertificateRequest(derBytes) if err != nil { t.Fatal(err) } return csr } func TestCertificateRequestOverrides(t *testing.T) { sanContents, err := marshalSANs([]string{"foo.example.com"}, nil, nil, nil) if err != nil { t.Fatal(err) } template := CertificateRequest{ Subject: pkix.Name{ CommonName: "test.example.com", Organization: []string{"Σ Acme Co"}, }, DNSNames: []string{"test.example.com"}, // An explicit extension should override the DNSNames from the // template. ExtraExtensions: []pkix.Extension{ { Id: oidExtensionSubjectAltName, Value: sanContents, Critical: true, }, }, } csr := marshalAndParseCSR(t, &template) if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo.example.com" { t.Errorf("Extension did not override template. Got %v\n", csr.DNSNames) } if len(csr.Extensions) != 1 || !csr.Extensions[0].Id.Equal(oidExtensionSubjectAltName) || !csr.Extensions[0].Critical { t.Errorf("SAN extension was not faithfully copied, got %#v", csr.Extensions) } // If there is already an attribute with X.509 extensions then the // extra extensions should be added to it rather than creating a CSR // with two extension attributes. template.Attributes = []pkix.AttributeTypeAndValueSET{ { Type: oidExtensionRequest, Value: [][]pkix.AttributeTypeAndValue{ { { Type: oidExtensionAuthorityInfoAccess, Value: []byte("foo"), }, }, }, }, } csr = marshalAndParseCSR(t, &template) if l := len(csr.Attributes); l != 1 { t.Errorf("incorrect number of attributes: %d\n", l) } if !csr.Attributes[0].Type.Equal(oidExtensionRequest) || len(csr.Attributes[0].Value) != 1 || len(csr.Attributes[0].Value[0]) != 2 { t.Errorf("bad attributes: %#v\n", csr.Attributes) } sanContents2, err := marshalSANs([]string{"foo2.example.com"}, nil, nil, nil) if err != nil { t.Fatal(err) } // Extensions in Attributes should override those in ExtraExtensions. template.Attributes[0].Value[0] = append(template.Attributes[0].Value[0], pkix.AttributeTypeAndValue{ Type: oidExtensionSubjectAltName, Value: sanContents2, }) csr = marshalAndParseCSR(t, &template) if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "foo2.example.com" { t.Errorf("Attributes did not override ExtraExtensions. Got %v\n", csr.DNSNames) } } func TestParseCertificateRequest(t *testing.T) { for _, csrBase64 := range csrBase64Array { csrBytes := fromBase64(csrBase64) csr, err := ParseCertificateRequest(csrBytes) if err != nil { t.Fatalf("failed to parse CSR: %s", err) } if len(csr.EmailAddresses) != 1 || csr.EmailAddresses[0] != "gopher@golang.org" { t.Errorf("incorrect email addresses found: %v", csr.EmailAddresses) } if len(csr.DNSNames) != 1 || csr.DNSNames[0] != "test.example.com" { t.Errorf("incorrect DNS names found: %v", csr.DNSNames) } if len(csr.Subject.Country) != 1 || csr.Subject.Country[0] != "AU" { t.Errorf("incorrect Subject name: %v", csr.Subject) } found := false for _, e := range csr.Extensions { if e.Id.Equal(oidExtensionBasicConstraints) { found = true break } } if !found { t.Errorf("basic constraints extension not found in CSR") } } } func TestCriticalFlagInCSRRequestedExtensions(t *testing.T) { // This CSR contains an extension request where the extensions have a // critical flag in them. In the past we failed to handle this. const csrBase64 = "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" csrBytes := fromBase64(csrBase64) csr, err := ParseCertificateRequest(csrBytes) if err != nil { t.Fatalf("failed to parse CSR: %s", err) } expected := []struct { Id asn1.ObjectIdentifier Value []byte }{ {oidExtensionBasicConstraints, fromBase64("MAYBAf8CAQA=")}, {oidExtensionKeyUsage, fromBase64("AwIChA==")}, } if n := len(csr.Extensions); n != len(expected) { t.Fatalf("expected to find %d extensions but found %d", len(expected), n) } for i, extension := range csr.Extensions { if !extension.Id.Equal(expected[i].Id) { t.Fatalf("extension #%d has unexpected type %v (expected %v)", i, extension.Id, expected[i].Id) } if !bytes.Equal(extension.Value, expected[i].Value) { t.Fatalf("extension #%d has unexpected contents %x (expected %x)", i, extension.Value, expected[i].Value) } } } // serialiseAndParse generates a self-signed certificate from template and // returns a parsed version of it. func serialiseAndParse(t *testing.T, template *Certificate) *Certificate { t.Helper() derBytes, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey) if err != nil { t.Fatalf("failed to create certificate: %s", err) return nil } cert, err := ParseCertificate(derBytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) return nil } return cert } func TestMaxPathLenNotCA(t *testing.T) { template := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: "Σ Acme Co", }, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: false, } if m := serialiseAndParse(t, template).MaxPathLen; m != -1 { t.Errorf("MaxPathLen should be -1 when IsCa is false, got %d", m) } template.MaxPathLen = -1 if m := serialiseAndParse(t, template).MaxPathLen; m != -1 { t.Errorf("MaxPathLen should be -1 when IsCa is false and MaxPathLen set to -1, got %d", m) } template.MaxPathLen = 5 if _, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey); err == nil { t.Error("specifying a MaxPathLen when IsCA is false should fail") } template.MaxPathLen = 0 template.MaxPathLenZero = true if _, err := CreateCertificate(rand.Reader, template, template, &testPrivateKey.PublicKey, testPrivateKey); err == nil { t.Error("setting MaxPathLenZero when IsCA is false should fail") } template.BasicConstraintsValid = false if m := serialiseAndParse(t, template).MaxPathLen; m != 0 { t.Errorf("Bad MaxPathLen should be ignored if BasicConstraintsValid is false, got %d", m) } } func TestMaxPathLen(t *testing.T) { template := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: "Σ Acme Co", }, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: true, } cert1 := serialiseAndParse(t, template) if m := cert1.MaxPathLen; m != -1 { t.Errorf("Omitting MaxPathLen didn't turn into -1, got %d", m) } if cert1.MaxPathLenZero { t.Errorf("Omitting MaxPathLen resulted in MaxPathLenZero") } template.MaxPathLen = 1 cert2 := serialiseAndParse(t, template) if m := cert2.MaxPathLen; m != 1 { t.Errorf("Setting MaxPathLen didn't work. Got %d but set 1", m) } if cert2.MaxPathLenZero { t.Errorf("Setting MaxPathLen resulted in MaxPathLenZero") } template.MaxPathLen = 0 template.MaxPathLenZero = true cert3 := serialiseAndParse(t, template) if m := cert3.MaxPathLen; m != 0 { t.Errorf("Setting MaxPathLenZero didn't work, got %d", m) } if !cert3.MaxPathLenZero { t.Errorf("Setting MaxPathLen to zero didn't result in MaxPathLenZero") } } func TestNoAuthorityKeyIdInSelfSignedCert(t *testing.T) { template := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: "Σ Acme Co", }, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: true, SubjectKeyId: []byte{1, 2, 3, 4}, } if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) != 0 { t.Fatalf("self-signed certificate contained default authority key id") } template.AuthorityKeyId = []byte{1, 2, 3, 4} if cert := serialiseAndParse(t, template); len(cert.AuthorityKeyId) == 0 { t.Fatalf("self-signed certificate erased explicit authority key id") } } func TestNoSubjectKeyIdInCert(t *testing.T) { template := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: "Σ Acme Co", }, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: true, } if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) == 0 { t.Fatalf("self-signed certificate did not generate subject key id using the public key") } template.IsCA = false if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) != 0 { t.Fatalf("self-signed certificate generated subject key id when it isn't a CA") } template.SubjectKeyId = []byte{1, 2, 3, 4} if cert := serialiseAndParse(t, template); len(cert.SubjectKeyId) == 0 { t.Fatalf("self-signed certificate erased explicit subject key id") } } func TestASN1BitLength(t *testing.T) { tests := []struct { bytes []byte bitLen int }{ {nil, 0}, {[]byte{0x00}, 0}, {[]byte{0x00, 0x00}, 0}, {[]byte{0xf0}, 4}, {[]byte{0x88}, 5}, {[]byte{0xff}, 8}, {[]byte{0xff, 0x80}, 9}, {[]byte{0xff, 0x81}, 16}, } for i, test := range tests { if got := asn1BitLength(test.bytes); got != test.bitLen { t.Errorf("#%d: calculated bit-length of %d for %x, wanted %d", i, got, test.bytes, test.bitLen) } } } func TestVerifyEmptyCertificate(t *testing.T) { if _, err := new(Certificate).Verify(VerifyOptions{}); err != errNotParsed { t.Errorf("Verifying empty certificate resulted in unexpected error: %q (wanted %q)", err, errNotParsed) } } func TestInsecureAlgorithmErrorString(t *testing.T) { tests := []struct { sa SignatureAlgorithm want string }{ {MD5WithRSA, "x509: cannot verify signature: insecure algorithm MD5-RSA"}, {SHA1WithRSA, "x509: cannot verify signature: insecure algorithm SHA1-RSA"}, {ECDSAWithSHA1, "x509: cannot verify signature: insecure algorithm ECDSA-SHA1"}, {MD2WithRSA, "x509: cannot verify signature: insecure algorithm 1"}, {-1, "x509: cannot verify signature: insecure algorithm -1"}, {0, "x509: cannot verify signature: insecure algorithm 0"}, {9999, "x509: cannot verify signature: insecure algorithm 9999"}, } for i, tt := range tests { if got := fmt.Sprint(InsecureAlgorithmError(tt.sa)); got != tt.want { t.Errorf("%d. mismatch.\n got: %s\nwant: %s\n", i, got, tt.want) } } } // These CSR was generated with OpenSSL: // // openssl req -out CSR.csr -new -sha256 -nodes -keyout privateKey.key -config openssl.cnf // // With openssl.cnf containing the following sections: // // [ v3_req ] // basicConstraints = CA:FALSE // keyUsage = nonRepudiation, digitalSignature, keyEncipherment // subjectAltName = email:gopher@golang.org,DNS:test.example.com // [ req_attributes ] // challengePassword = ignored challenge // unstructuredName = ignored unstructured name var csrBase64Array = [...]string{ // Just [ v3_req ] "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", // Both [ v3_req ] and [ req_attributes ] "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", } var md5cert = ` -----BEGIN CERTIFICATE----- MIIB4TCCAUoCCQCfmw3vMgPS5TANBgkqhkiG9w0BAQQFADA1MQswCQYDVQQGEwJB VTETMBEGA1UECBMKU29tZS1TdGF0ZTERMA8GA1UEChMITUQ1IEluYy4wHhcNMTUx MjAzMTkyOTMyWhcNMjkwODEyMTkyOTMyWjA1MQswCQYDVQQGEwJBVTETMBEGA1UE CBMKU29tZS1TdGF0ZTERMA8GA1UEChMITUQ1IEluYy4wgZ8wDQYJKoZIhvcNAQEB BQADgY0AMIGJAoGBANrq2nhLQj5mlXbpVX3QUPhfEm/vdEqPkoWtR/jRZIWm4WGf Wpq/LKHJx2Pqwn+t117syN8l4U5unyAi1BJSXjBwPZNd7dXjcuJ+bRLV7FZ/iuvs cfYyQQFTxan4TaJMd0x1HoNDbNbjHa02IyjjYE/r3mb/PIg+J2t5AZEh80lPAgMB AAEwDQYJKoZIhvcNAQEEBQADgYEAjGzp3K3ey/YfKHohf33yHHWd695HQxDAP+wY cs9/TAyLR+gJzJP7d18EcDDLJWVi7bhfa4EAD86di05azOh9kWSn4b3o9QYRGCSw GNnI3Zk0cwNKA49hZntKKiy22DhRk7JAHF01d6Bu3KkHkmENrtJ+zj/+159WAnUa qViorq4= -----END CERTIFICATE----- ` func TestMD5(t *testing.T) { pemBlock, _ := pem.Decode([]byte(md5cert)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } if sa := cert.SignatureAlgorithm; sa != MD5WithRSA { t.Errorf("signature algorithm is %v, want %v", sa, MD5WithRSA) } if err = cert.CheckSignatureFrom(cert); err == nil { t.Fatalf("certificate verification succeeded incorrectly") } if _, ok := err.(InsecureAlgorithmError); !ok { t.Fatalf("certificate verification returned %v (%T), wanted InsecureAlgorithmError", err, err) } } func TestSHA1(t *testing.T) { pemBlock, _ := pem.Decode([]byte(ecdsaSHA1CertPem)) cert, err := ParseCertificate(pemBlock.Bytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } if sa := cert.SignatureAlgorithm; sa != ECDSAWithSHA1 { t.Errorf("signature algorithm is %v, want %v", sa, ECDSAWithSHA1) } if err = cert.CheckSignatureFrom(cert); err == nil { t.Fatalf("certificate verification succeeded incorrectly") } if _, ok := err.(InsecureAlgorithmError); !ok { t.Fatalf("certificate verification returned %v (%T), wanted InsecureAlgorithmError", err, err) } } // certMissingRSANULL contains an RSA public key where the AlgorithmIdentifier // parameters are omitted rather than being an ASN.1 NULL. const certMissingRSANULL = ` -----BEGIN CERTIFICATE----- MIIB7TCCAVigAwIBAgIBADALBgkqhkiG9w0BAQUwJjEQMA4GA1UEChMHQWNtZSBD bzESMBAGA1UEAxMJMTI3LjAuMC4xMB4XDTExMTIwODA3NTUxMloXDTEyMTIwNzA4 MDAxMlowJjEQMA4GA1UEChMHQWNtZSBDbzESMBAGA1UEAxMJMTI3LjAuMC4xMIGc MAsGCSqGSIb3DQEBAQOBjAAwgYgCgYBO0Hsx44Jk2VnAwoekXh6LczPHY1PfZpIG hPZk1Y/kNqcdK+izIDZFI7Xjla7t4PUgnI2V339aEu+H5Fto5OkOdOwEin/ekyfE ARl6vfLcPRSr0FTKIQzQTW6HLlzF0rtNS0/Otiz3fojsfNcCkXSmHgwa2uNKWi7e E5xMQIhZkwIDAQABozIwMDAOBgNVHQ8BAf8EBAMCAKAwDQYDVR0OBAYEBAECAwQw DwYDVR0jBAgwBoAEAQIDBDALBgkqhkiG9w0BAQUDgYEANh+zegx1yW43RmEr1b3A p0vMRpqBWHyFeSnIyMZn3TJWRSt1tukkqVCavh9a+hoV2cxVlXIWg7nCto/9iIw4 hB2rXZIxE0/9gzvGnfERYraL7KtnvshksBFQRlgXa5kc0x38BvEO5ZaoDPl4ILdE GFGNEH5PlGffo05wc46QkYU= -----END CERTIFICATE-----` func TestRSAMissingNULLParameters(t *testing.T) { block, _ := pem.Decode([]byte(certMissingRSANULL)) if _, err := ParseCertificate(block.Bytes); err == nil { t.Error("unexpected success when parsing certificate with missing RSA NULL parameter") } else if !strings.Contains(err.Error(), "missing NULL") { t.Errorf("unrecognised error when parsing certificate with missing RSA NULL parameter: %s", err) } } const certISOOID = `-----BEGIN CERTIFICATE----- MIIB5TCCAVKgAwIBAgIQNwyL3RPWV7dJQp34HwZG9DAJBgUrDgMCHQUAMBExDzAN BgNVBAMTBm15dGVzdDAeFw0xNjA4MDkyMjExMDVaFw0zOTEyMzEyMzU5NTlaMBEx DzANBgNVBAMTBm15dGVzdDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEArzIH GsyDB3ohIGkkvijF2PTRUX1bvOtY1eUUpjwHyu0twpAKSuaQv2Ha+/63+aHe8O86 BT+98wjXFX6RFSagtAujo80rIF2dSm33BGt18pDN8v6zp93dnAm0jRaSQrHJ75xw 5O+S1oEYR1LtUoFJy6qB104j6aINBAgOiLIKiMkCAwEAAaNGMEQwQgYDVR0BBDsw OYAQVuYVQ/WDjdGSkZRlTtJDNKETMBExDzANBgNVBAMTBm15dGVzdIIQtwyL3RPW V7dJQp34HwZG9DAJBgUrDgMCHQUAA4GBABngrSkH7vG5lY4sa4AZF59lAAXqBVJE J4TBiKC62hCdZv18rBleP6ETfhbPg7pTs8p4ebQbpmtNxRS9Lw3MzQ8Ya5Ybwzj2 NwBSyCtCQl7mrEg4nJqJl4A2EUhnET/oVxU0oTV/SZ3ziGXcY1oG1s6vidV7TZTu MCRtdSdaM7g3 -----END CERTIFICATE-----` func TestISOOIDInCertificate(t *testing.T) { block, _ := pem.Decode([]byte(certISOOID)) if cert, err := ParseCertificate(block.Bytes); err != nil { t.Errorf("certificate with ISO OID failed to parse: %s", err) } else if cert.SignatureAlgorithm == UnknownSignatureAlgorithm { t.Errorf("ISO OID not recognised in certificate") } } // certMultipleRDN contains a RelativeDistinguishedName with two elements (the // common name and serial number). This particular certificate was the first // such certificate in the “Pilot” Certificate Transparency log. const certMultipleRDN = ` -----BEGIN CERTIFICATE----- MIIFRzCCBC+gAwIBAgIEOl59NTANBgkqhkiG9w0BAQUFADA9MQswCQYDVQQGEwJz aTEbMBkGA1UEChMSc3RhdGUtaW5zdGl0dXRpb25zMREwDwYDVQQLEwhzaWdvdi1j YTAeFw0xMjExMTYxMDUyNTdaFw0xNzExMTYxMjQ5MDVaMIGLMQswCQYDVQQGEwJz aTEbMBkGA1UEChMSc3RhdGUtaW5zdGl0dXRpb25zMRkwFwYDVQQLExB3ZWItY2Vy dGlmaWNhdGVzMRAwDgYDVQQLEwdTZXJ2ZXJzMTIwFAYDVQQFEw0xMjM2NDg0MDEw MDEwMBoGA1UEAxMTZXBvcnRhbC5tc3MuZWR1cy5zaTCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBAMrNkZH9MPuBTjMGNk3sJX8V+CkFx/4ru7RTlLS6dlYM 098dtSfJ3s2w0p/1NB9UmR8j0yS0Kg6yoZ3ShsSO4DWBtcQD8820a6BYwqxxQTNf HSRZOc+N/4TQrvmK6t4k9Aw+YEYTMrWOU4UTeyhDeCcUsBdh7HjfWsVaqNky+2sv oic3zP5gF+2QfPkvOoHT3FLR8olNhViIE6Kk3eFIEs4dkq/ZzlYdLb8pHQoj/sGI zFmA5AFvm1HURqOmJriFjBwaCtn8AVEYOtQrnUCzJYu1ex8azyS2ZgYMX0u8A5Z/ y2aMS/B2W+H79WcgLpK28vPwe7vam0oFrVytAd+u65ECAwEAAaOCAf4wggH6MA4G A1UdDwEB/wQEAwIFoDBABgNVHSAEOTA3MDUGCisGAQQBr1kBAwMwJzAlBggrBgEF BQcCARYZaHR0cDovL3d3dy5jYS5nb3Yuc2kvY3BzLzAfBgNVHREEGDAWgRRwb2Rw b3JhLm1pemtzQGdvdi5zaTCB8QYDVR0fBIHpMIHmMFWgU6BRpE8wTTELMAkGA1UE BhMCc2kxGzAZBgNVBAoTEnN0YXRlLWluc3RpdHV0aW9uczERMA8GA1UECxMIc2ln b3YtY2ExDjAMBgNVBAMTBUNSTDM5MIGMoIGJoIGGhldsZGFwOi8veDUwMC5nb3Yu c2kvb3U9c2lnb3YtY2Esbz1zdGF0ZS1pbnN0aXR1dGlvbnMsYz1zaT9jZXJ0aWZp Y2F0ZVJldm9jYXRpb25MaXN0P2Jhc2WGK2h0dHA6Ly93d3cuc2lnb3YtY2EuZ292 LnNpL2NybC9zaWdvdi1jYS5jcmwwKwYDVR0QBCQwIoAPMjAxMjExMTYxMDUyNTda gQ8yMDE3MTExNjEyNDkwNVowHwYDVR0jBBgwFoAUHvjUU2uzgwbpBAZXAvmlv8ZY PHIwHQYDVR0OBBYEFGI1Duuu+wTGDZka/xHNbwcbM69ZMAkGA1UdEwQCMAAwGQYJ KoZIhvZ9B0EABAwwChsEVjcuMQMCA6gwDQYJKoZIhvcNAQEFBQADggEBAHny0K1y BQznrzDu3DDpBcGYguKU0dvU9rqsV1ua4nxkriSMWjgsX6XJFDdDW60I3P4VWab5 ag5fZzbGqi8kva/CzGgZh+CES0aWCPy+4Gb8lwOTt+854/laaJvd6kgKTER7z7U9 9C86Ch2y4sXNwwwPJ1A9dmrZJZOcJjS/WYZgwaafY2Hdxub5jqPE5nehwYUPVu9R uH6/skk4OEKcfOtN0hCnISOVuKYyS4ANARWRG5VGHIH06z3lGUVARFRJ61gtAprd La+fgSS+LVZ+kU2TkeoWAKvGq8MAgDq4D4Xqwekg7WKFeuyusi/NI5rm40XgjBMF DF72IUofoVt7wo0= -----END CERTIFICATE-----` func TestMultipleRDN(t *testing.T) { block, _ := pem.Decode([]byte(certMultipleRDN)) cert, err := ParseCertificate(block.Bytes) if err != nil { t.Fatalf("certificate with two elements in an RDN failed to parse: %v", err) } if want := "eportal.mss.edus.si"; cert.Subject.CommonName != want { t.Errorf("got common name of %q, but want %q", cert.Subject.CommonName, want) } if want := "1236484010010"; cert.Subject.SerialNumber != want { t.Errorf("got serial number of %q, but want %q", cert.Subject.SerialNumber, want) } } func TestSystemCertPool(t *testing.T) { if runtime.GOOS == "windows" || runtime.GOOS == "darwin" || runtime.GOOS == "ios" { t.Skip("not implemented on Windows (Issue 16736, 18609) or darwin (Issue 46287)") } a, err := SystemCertPool() if err != nil { t.Fatal(err) } b, err := SystemCertPool() if err != nil { t.Fatal(err) } if !certPoolEqual(a, b) { t.Fatal("two calls to SystemCertPool had different results") } if ok := b.AppendCertsFromPEM([]byte(` -----BEGIN CERTIFICATE----- MIIDBjCCAe6gAwIBAgIRANXM5I3gjuqDfTp/PYrs+u8wDQYJKoZIhvcNAQELBQAw EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0xODAzMjcxOTU2MjFaFw0xOTAzMjcxOTU2 MjFaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw ggEKAoIBAQDK+9m3rjsO2Djes6bIYQZ3eV29JF09ZrjOrEHLtaKrD6/acsoSoTsf cQr+rzzztdB5ijWXCS64zo/0OiqBeZUNZ67jVdToa9qW5UYe2H0Y+ZNdfA5GYMFD yk/l3/uBu3suTZPfXiW2TjEi27Q8ruNUIZ54DpTcs6y2rBRFzadPWwn/VQMlvRXM jrzl8Y08dgnYmaAHprxVzwMXcQ/Brol+v9GvjaH1DooHqkn8O178wsPQNhdtvN01 IXL46cYdcUwWrE/GX5u+9DaSi+0KWxAPQ+NVD5qUI0CKl4714yGGh7feXMjJdHgl VG4QJZlJvC4FsURgCHJT6uHGIelnSwhbAgMBAAGjVzBVMA4GA1UdDwEB/wQEAwIF oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMCAGA1UdEQQZMBeC FVRlc3RTeXN0ZW1DZXJ0UG9vbC5nbzANBgkqhkiG9w0BAQsFAAOCAQEAwuSRx/VR BKh2ICxZjL6jBwk/7UlU1XKbhQD96RqkidDNGEc6eLZ90Z5XXTurEsXqdm5jQYPs 1cdcSW+fOSMl7MfW9e5tM66FaIPZl9rKZ1r7GkOfgn93xdLAWe8XHd19xRfDreub YC8DVqgLASOEYFupVSl76ktPfxkU5KCvmUf3P2PrRybk1qLGFytGxfyice2gHSNI gify3K/+H/7wCkyFW4xYvzl7WW4mXxoqPRPjQt1J423DhnnQ4G1P8V/vhUpXNXOq N9IEPnWuihC09cyx/WMQIUlWnaQLHdfpPS04Iez3yy2PdfXJzwfPrja7rNE+skK6 pa/O1nF0AfWOpw== -----END CERTIFICATE----- `)); !ok { t.Fatal("AppendCertsFromPEM failed") } if reflect.DeepEqual(a, b) { t.Fatal("changing one pool modified the other") } } const emptyNameConstraintsPEM = ` -----BEGIN CERTIFICATE----- MIIC1jCCAb6gAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwKDEmMCQGA1UEAxMdRW1w dHkgbmFtZSBjb25zdHJhaW50cyBpc3N1ZXIwHhcNMTMwMjAxMDAwMDAwWhcNMjAw NTMwMTA0ODM4WjAhMR8wHQYDVQQDExZFbXB0eSBuYW1lIGNvbnN0cmFpbnRzMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwriElUIt3LCqmJObs+yDoWPD F5IqgWk6moIobYjPfextZiYU6I3EfvAwoNxPDkN2WowcocUZMJbEeEq5ebBksFnx f12gBxlIViIYwZAzu7aFvhDMyPKQI3C8CG0ZSC9ABZ1E3umdA3CEueNOmP/TChNq Cl23+BG1Qb/PJkpAO+GfpWSVhTcV53Mf/cKvFHcjGNrxzdSoq9fyW7a6gfcGEQY0 LVkmwFWUfJ0wT8kaeLr0E0tozkIfo01KNWNzv6NcYP80QOBRDlApWu9ODmEVJHPD blx4jzTQ3JLa+4DvBNOjVUOp+mgRmjiW0rLdrxwOxIqIOwNjweMCp/hgxX/hTQID AQABoxEwDzANBgNVHR4EBjAEoAChADANBgkqhkiG9w0BAQsFAAOCAQEAWG+/zUMH QhP8uNCtgSHyim/vh7wminwAvWgMKxlkLBFns6nZeQqsOV1lABY7U0Zuoqa1Z5nb 6L+iJa4ElREJOi/erLc9uLwBdDCAR0hUTKD7a6i4ooS39DTle87cUnj0MW1CUa6H v5SsvpYW+1XleYJk/axQOOTcy4Es53dvnZsjXH0EA/QHnn7UV+JmlE3rtVxcYp6M LYPmRhTioROA/drghicRkiu9hxdPyxkYS16M5g3Zj30jdm+k/6C6PeNtN9YmOOga nCOSyFYfGhqOANYzpmuV+oIedAsPpIbfIzN8njYUs1zio+1IoI4o8ddM9sCbtPU8 o+WoY6IsCKXV/g== -----END CERTIFICATE-----` func TestEmptyNameConstraints(t *testing.T) { block, _ := pem.Decode([]byte(emptyNameConstraintsPEM)) _, err := ParseCertificate(block.Bytes) if err == nil { t.Fatal("unexpected success") } const expected = "empty name constraints" if str := err.Error(); !strings.Contains(str, expected) { t.Errorf("expected %q in error but got %q", expected, str) } } func TestPKIXNameString(t *testing.T) { der, err := base64.StdEncoding.DecodeString(certBytes) if err != nil { t.Fatal(err) } certs, err := ParseCertificates(der) if err != nil { t.Fatal(err) } // Check that parsed non-standard attributes are printed. rdns := pkix.Name{ Locality: []string{"Gophertown"}, ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}}, }.ToRDNSequence() nn := pkix.Name{} nn.FillFromRDNSequence(&rdns) // Check that zero-length non-nil ExtraNames hide Names. extra := []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "backing array"}} extraNotNil := pkix.Name{ Locality: []string{"Gophertown"}, ExtraNames: extra[:0], Names: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}}, } tests := []struct { dn pkix.Name want string }{ {nn, "L=Gophertown,1.2.3.4.5=golang.org"}, {extraNotNil, "L=Gophertown"}, {pkix.Name{ CommonName: "Steve Kille", Organization: []string{"Isode Limited"}, OrganizationalUnit: []string{"RFCs"}, Locality: []string{"Richmond"}, Province: []string{"Surrey"}, StreetAddress: []string{"The Square"}, PostalCode: []string{"TW9 1DT"}, SerialNumber: "RFC 2253", Country: []string{"GB"}, }, "SERIALNUMBER=RFC 2253,CN=Steve Kille,OU=RFCs,O=Isode Limited,POSTALCODE=TW9 1DT,STREET=The Square,L=Richmond,ST=Surrey,C=GB"}, {certs[0].Subject, "CN=mail.google.com,O=Google LLC,L=Mountain View,ST=California,C=US"}, {pkix.Name{ Organization: []string{"#Google, Inc. \n-> 'Alphabet\" "}, Country: []string{"US"}, }, "O=\\#Google\\, Inc. \n-\\> 'Alphabet\\\"\\ ,C=US"}, {pkix.Name{ CommonName: "foo.com", Organization: []string{"Gopher Industries"}, ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{2, 5, 4, 3}), Value: "bar.com"}}, }, "CN=bar.com,O=Gopher Industries"}, {pkix.Name{ Locality: []string{"Gophertown"}, ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}}, }, "1.2.3.4.5=golang.org,L=Gophertown"}, // If there are no ExtraNames, the Names are printed instead. {pkix.Name{ Locality: []string{"Gophertown"}, Names: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}}, }, "L=Gophertown,1.2.3.4.5=golang.org"}, // If there are both, print only the ExtraNames. {pkix.Name{ Locality: []string{"Gophertown"}, ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 5}), Value: "golang.org"}}, Names: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4, 6}), Value: "example.com"}}, }, "1.2.3.4.5=golang.org,L=Gophertown"}, // Non-string value falls back to hex-encoded DER (issue 33093). {pkix.Name{ CommonName: "foobar", ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{1, 2, 3, 4}), Value: 42}}, }, "1.2.3.4=#02012a,CN=foobar"}, // String containing non-PrintableString chars (here, UTF-8) is still // rendered as a string per RFC 2253 §2.4, not hex-encoded. {pkix.Name{ CommonName: "foobar", ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "Lučić"}}, }, "2.3.4.5=Lučić,CN=foobar"}, // String beginning with '#' has the '#' escaped (RFC 2253 §2.4). {pkix.Name{ CommonName: "foobar", ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "#abcdef"}}, }, "2.3.4.5=\\#abcdef,CN=foobar"}, // Printable string with an embedded RFC 2253 escapable character. {pkix.Name{ CommonName: "foobar", ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: "abcdef,GHI"}}, }, "2.3.4.5=abcdef\\,GHI,CN=foobar"}, // Printable string with leading and trailing space gets escaped. {pkix.Name{ CommonName: "foobar", ExtraNames: []pkix.AttributeTypeAndValue{ {Type: asn1.ObjectIdentifier([]int{2, 3, 4, 5}), Value: " abcdef "}}, }, "2.3.4.5=\\ abcdef\\ ,CN=foobar"}, } for i, test := range tests { if got := test.dn.String(); got != test.want { t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want) } } if extra[0].Value != "backing array" { t.Errorf("the backing array of an empty ExtraNames got modified by String") } } func TestRDNSequenceString(t *testing.T) { // Test some extra cases that get lost in pkix.Name conversions such as // multi-valued attributes. var ( oidCountry = []int{2, 5, 4, 6} oidOrganization = []int{2, 5, 4, 10} oidOrganizationalUnit = []int{2, 5, 4, 11} oidCommonName = []int{2, 5, 4, 3} ) tests := []struct { seq pkix.RDNSequence want string }{ { seq: pkix.RDNSequence{ pkix.RelativeDistinguishedNameSET{ pkix.AttributeTypeAndValue{Type: oidCountry, Value: "US"}, }, pkix.RelativeDistinguishedNameSET{ pkix.AttributeTypeAndValue{Type: oidOrganization, Value: "Widget Inc."}, }, pkix.RelativeDistinguishedNameSET{ pkix.AttributeTypeAndValue{Type: oidOrganizationalUnit, Value: "Sales"}, pkix.AttributeTypeAndValue{Type: oidCommonName, Value: "J. Smith"}, }, }, want: "OU=Sales+CN=J. Smith,O=Widget Inc.,C=US", }, } for i, test := range tests { if got := test.seq.String(); got != test.want { t.Errorf("#%d: String() = \n%s\n, want \n%s", i, got, test.want) } } } const criticalNameConstraintWithUnknownTypePEM = ` -----BEGIN CERTIFICATE----- MIIC/TCCAeWgAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwKDEmMCQGA1UEAxMdRW1w dHkgbmFtZSBjb25zdHJhaW50cyBpc3N1ZXIwHhcNMTMwMjAxMDAwMDAwWhcNMjAw NTMwMTA0ODM4WjAhMR8wHQYDVQQDExZFbXB0eSBuYW1lIGNvbnN0cmFpbnRzMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwriElUIt3LCqmJObs+yDoWPD F5IqgWk6moIobYjPfextZiYU6I3EfvAwoNxPDkN2WowcocUZMJbEeEq5ebBksFnx f12gBxlIViIYwZAzu7aFvhDMyPKQI3C8CG0ZSC9ABZ1E3umdA3CEueNOmP/TChNq Cl23+BG1Qb/PJkpAO+GfpWSVhTcV53Mf/cKvFHcjGNrxzdSoq9fyW7a6gfcGEQY0 LVkmwFWUfJ0wT8kaeLr0E0tozkIfo01KNWNzv6NcYP80QOBRDlApWu9ODmEVJHPD blx4jzTQ3JLa+4DvBNOjVUOp+mgRmjiW0rLdrxwOxIqIOwNjweMCp/hgxX/hTQID AQABozgwNjA0BgNVHR4BAf8EKjAooCQwIokgIACrzQAAAAAAAAAAAAAAAP////8A AAAAAAAAAAAAAAChADANBgkqhkiG9w0BAQsFAAOCAQEAWG+/zUMHQhP8uNCtgSHy im/vh7wminwAvWgMKxlkLBFns6nZeQqsOV1lABY7U0Zuoqa1Z5nb6L+iJa4ElREJ Oi/erLc9uLwBdDCAR0hUTKD7a6i4ooS39DTle87cUnj0MW1CUa6Hv5SsvpYW+1Xl eYJk/axQOOTcy4Es53dvnZsjXH0EA/QHnn7UV+JmlE3rtVxcYp6MLYPmRhTioROA /drghicRkiu9hxdPyxkYS16M5g3Zj30jdm+k/6C6PeNtN9YmOOganCOSyFYfGhqO ANYzpmuV+oIedAsPpIbfIzN8njYUs1zio+1IoI4o8ddM9sCbtPU8o+WoY6IsCKXV /g== -----END CERTIFICATE-----` func TestCriticalNameConstraintWithUnknownType(t *testing.T) { block, _ := pem.Decode([]byte(criticalNameConstraintWithUnknownTypePEM)) cert, err := ParseCertificate(block.Bytes) if err != nil { t.Fatalf("unexpected parsing failure: %s", err) } if l := len(cert.UnhandledCriticalExtensions); l != 1 { t.Fatalf("expected one unhandled critical extension, but found %d", l) } } const badIPMaskPEM = ` -----BEGIN CERTIFICATE----- MIICzzCCAbegAwIBAgICEjQwDQYJKoZIhvcNAQELBQAwHTEbMBkGA1UEAxMSQmFk IElQIG1hc2sgaXNzdWVyMB4XDTEzMDIwMTAwMDAwMFoXDTIwMDUzMDEwNDgzOFow FjEUMBIGA1UEAxMLQmFkIElQIG1hc2swggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw ggEKAoIBAQDCuISVQi3csKqYk5uz7IOhY8MXkiqBaTqagihtiM997G1mJhTojcR+ 8DCg3E8OQ3ZajByhxRkwlsR4Srl5sGSwWfF/XaAHGUhWIhjBkDO7toW+EMzI8pAj cLwIbRlIL0AFnUTe6Z0DcIS5406Y/9MKE2oKXbf4EbVBv88mSkA74Z+lZJWFNxXn cx/9wq8UdyMY2vHN1Kir1/JbtrqB9wYRBjQtWSbAVZR8nTBPyRp4uvQTS2jOQh+j TUo1Y3O/o1xg/zRA4FEOUCla704OYRUkc8NuXHiPNNDcktr7gO8E06NVQ6n6aBGa OJbSst2vHA7Eiog7A2PB4wKn+GDFf+FNAgMBAAGjIDAeMBwGA1UdHgEB/wQSMBCg DDAKhwgBAgME//8BAKEAMA0GCSqGSIb3DQEBCwUAA4IBAQBYb7/NQwdCE/y40K2B IfKKb++HvCaKfAC9aAwrGWQsEWezqdl5Cqw5XWUAFjtTRm6iprVnmdvov6IlrgSV EQk6L96stz24vAF0MIBHSFRMoPtrqLiihLf0NOV7ztxSePQxbUJRroe/lKy+lhb7 VeV5gmT9rFA45NzLgSznd2+dmyNcfQQD9AeeftRX4maUTeu1XFxinowtg+ZGFOKh E4D92uCGJxGSK72HF0/LGRhLXozmDdmPfSN2b6T/oLo942031iY46BqcI5LIVh8a Go4A1jOma5X6gh50Cw+kht8jM3yeNhSzXOKj7Uigjijx10z2wJu09Tyj5ahjoiwI pdX+ -----END CERTIFICATE-----` func TestBadIPMask(t *testing.T) { block, _ := pem.Decode([]byte(badIPMaskPEM)) _, err := ParseCertificate(block.Bytes) if err == nil { t.Fatalf("unexpected success") } const expected = "contained invalid mask" if !strings.Contains(err.Error(), expected) { t.Fatalf("expected %q in error but got: %s", expected, err) } } const additionalGeneralSubtreePEM = ` -----BEGIN CERTIFICATE----- MIIG4TCCBMmgAwIBAgIRALss+4rLw2Ia7tFFhxE8g5cwDQYJKoZIhvcNAQELBQAw bjELMAkGA1UEBhMCTkwxIDAeBgNVBAoMF01pbmlzdGVyaWUgdmFuIERlZmVuc2ll MT0wOwYDVQQDDDRNaW5pc3RlcmllIHZhbiBEZWZlbnNpZSBDZXJ0aWZpY2F0aWUg QXV0b3JpdGVpdCAtIEcyMB4XDTEzMDMwNjEyMDM0OVoXDTEzMTEzMDEyMDM1MFow bDELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUNlcnRpUGF0aCBMTEMxIjAgBgNVBAsT GUNlcnRpZmljYXRpb24gQXV0aG9yaXRpZXMxITAfBgNVBAMTGENlcnRpUGF0aCBC cmlkZ2UgQ0EgLSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANLW 4kXiRqvwBhJfN9uz12FA+P2D34MPxOt7TGXljm2plJ2CLzvaH8/ymsMdSWdJBS1M 8FmwvNL1w3A6ZuzksJjPikAu8kY3dcp3mrkk9eCPORDAwGtfsXwZysLiuEaDWpbD dHOaHnI6qWU0N6OI+hNX58EjDpIGC1WQdho1tHOTPc5Hf5/hOpM/29v/wr7kySjs Z+7nsvkm5rNhuJNzPsLsgzVaJ5/BVyOplZy24FKM8Y43MjR4osZm+a2e0zniqw6/ rvcjcGYabYaznZfQG1GXoyf2Vea+CCgpgUhlVafgkwEs8izl8rIpvBzXiFAgFQuG Ituoy92PJbDs430fA/cCAwEAAaOCAnowggJ2MEUGCCsGAQUFBwEBBDkwNzA1Bggr BgEFBQcwAoYpaHR0cDovL2NlcnRzLmNhLm1pbmRlZi5ubC9taW5kZWYtY2EtMi5w N2MwHwYDVR0jBBgwFoAUzln9WSPz2M64Rl2HYf2/KD8StmQwDwYDVR0TAQH/BAUw AwEB/zCB6QYDVR0gBIHhMIHeMEgGCmCEEAGHawECBQEwOjA4BggrBgEFBQcCARYs aHR0cDovL2Nwcy5kcC5jYS5taW5kZWYubmwvbWluZGVmLWNhLWRwLWNwcy8wSAYK YIQQAYdrAQIFAjA6MDgGCCsGAQUFBwIBFixodHRwOi8vY3BzLmRwLmNhLm1pbmRl Zi5ubC9taW5kZWYtY2EtZHAtY3BzLzBIBgpghBABh2sBAgUDMDowOAYIKwYBBQUH AgEWLGh0dHA6Ly9jcHMuZHAuY2EubWluZGVmLm5sL21pbmRlZi1jYS1kcC1jcHMv MDkGA1UdHwQyMDAwLqAsoCqGKGh0dHA6Ly9jcmxzLmNhLm1pbmRlZi5ubC9taW5k ZWYtY2EtMi5jcmwwDgYDVR0PAQH/BAQDAgEGMEYGA1UdHgEB/wQ8MDqhODA2pDEw LzELMAkGA1UEBhMCTkwxIDAeBgNVBAoTF01pbmlzdGVyaWUgdmFuIERlZmVuc2ll gQFjMF0GA1UdIQRWMFQwGgYKYIQQAYdrAQIFAQYMKwYBBAGBu1MBAQECMBoGCmCE EAGHawECBQIGDCsGAQQBgbtTAQEBAjAaBgpghBABh2sBAgUDBgwrBgEEAYG7UwEB AQIwHQYDVR0OBBYEFNDCjBM3M3ZKkag84ei3/aKc0d0UMA0GCSqGSIb3DQEBCwUA A4ICAQAQXFn9jF90/DNFf15JhoGtta/0dNInb14PMu3PAjcdrXYCDPpQZOArTUng 5YT1WuzfmjnXiTsziT3my0r9Mxvz/btKK/lnVOMW4c2q/8sIsIPnnW5ZaRGrsANB dNDZkzMYmeG2Pfgvd0AQSOrpE/TVgWfu/+MMRWwX9y6VbooBR7BLv7zMuVH0WqLn 6OMFth7fqsThlfMSzkE/RDSaU6n3wXAWT1SIqBITtccRjSUQUFm/q3xrb2cwcZA6 8vdS4hzNd+ttS905ay31Ks4/1Wrm1bH5RhEfRSH0VSXnc0b+z+RyBbmiwtVZqzxE u3UQg/rAmtLDclLFEzjp8YDTIRYSLwstDbEXO/0ArdGrQm79HQ8i/3ZbP2357myW i15qd6gMJIgGHS4b8Hc7R1K8LQ9Gm1aLKBEWVNGZlPK/cpXThpVmoEyslN2DHCrc fbMbjNZpXlTMa+/b9z7Fa4X8dY8u/ELzZuJXJv5Rmqtg29eopFFYDCl0Nkh1XAjo QejEoHHUvYV8TThHZr6Z6Ib8CECgTehU4QvepkgDXNoNrKRZBG0JhLjkwxh2whZq nvWBfALC2VuNOM6C0rDY+HmhMlVt0XeqnybD9MuQALMit7Z00Cw2CIjNsBI9xBqD xKK9CjUb7gzRUWSpB9jGHsvpEMHOzIFhufvH2Bz1XJw+Cl7khw== -----END CERTIFICATE-----` func TestAdditionFieldsInGeneralSubtree(t *testing.T) { // Very rarely, certificates can include additional fields in the // GeneralSubtree structure. This tests that such certificates can be // parsed. block, _ := pem.Decode([]byte(additionalGeneralSubtreePEM)) if _, err := ParseCertificate(block.Bytes); err != nil { t.Fatalf("failed to parse certificate: %s", err) } } func TestEmptySerialNumber(t *testing.T) { template := Certificate{ DNSNames: []string{"example.com"}, } for range 100 { derBytes, err := CreateCertificate(rand.Reader, &template, &template, &testPrivateKey.PublicKey, testPrivateKey) if err != nil { t.Fatalf("failed to create certificate: %s", err) } cert, err := ParseCertificate(derBytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } if sign := cert.SerialNumber.Sign(); sign != 1 { t.Fatalf("generated a non positive serial, sign: %d", sign) } b, err := asn1.Marshal(cert.SerialNumber) if err != nil { t.Fatalf("failed to marshal generated serial number: %s", err) } // subtract 2 for tag and length if l := len(b) - 2; l > 20 { t.Fatalf("generated serial number larger than 20 octets when encoded: %d", l) } } } func TestEmptySubject(t *testing.T) { template := Certificate{ SerialNumber: big.NewInt(1), DNSNames: []string{"example.com"}, } derBytes, err := CreateCertificate(rand.Reader, &template, &template, &testPrivateKey.PublicKey, testPrivateKey) if err != nil { t.Fatalf("failed to create certificate: %s", err) } cert, err := ParseCertificate(derBytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } for _, ext := range cert.Extensions { if ext.Id.Equal(oidExtensionSubjectAltName) { if !ext.Critical { t.Fatal("SAN extension is not critical") } return } } t.Fatal("SAN extension is missing") } // multipleURLsInCRLDPPEM contains two URLs in a single CRL DistributionPoint // structure. It is taken from https://crt.sh/?id=12721534. const multipleURLsInCRLDPPEM = ` -----BEGIN CERTIFICATE----- MIIF4TCCBMmgAwIBAgIQc+6uFePfrahUGpXs8lhiTzANBgkqhkiG9w0BAQsFADCB 8zELMAkGA1UEBhMCRVMxOzA5BgNVBAoTMkFnZW5jaWEgQ2F0YWxhbmEgZGUgQ2Vy dGlmaWNhY2lvIChOSUYgUS0wODAxMTc2LUkpMSgwJgYDVQQLEx9TZXJ2ZWlzIFB1 YmxpY3MgZGUgQ2VydGlmaWNhY2lvMTUwMwYDVQQLEyxWZWdldSBodHRwczovL3d3 dy5jYXRjZXJ0Lm5ldC92ZXJhcnJlbCAoYykwMzE1MDMGA1UECxMsSmVyYXJxdWlh IEVudGl0YXRzIGRlIENlcnRpZmljYWNpbyBDYXRhbGFuZXMxDzANBgNVBAMTBkVD LUFDQzAeFw0xNDA5MTgwODIxMDBaFw0zMDA5MTgwODIxMDBaMIGGMQswCQYDVQQG EwJFUzEzMDEGA1UECgwqQ09OU09SQ0kgQURNSU5JU1RSQUNJTyBPQkVSVEEgREUg Q0FUQUxVTllBMSowKAYDVQQLDCFTZXJ2ZWlzIFDDumJsaWNzIGRlIENlcnRpZmlj YWNpw7MxFjAUBgNVBAMMDUVDLUNpdXRhZGFuaWEwggEiMA0GCSqGSIb3DQEBAQUA A4IBDwAwggEKAoIBAQDFkHPRZPZlXTWZ5psJhbS/Gx+bxcTpGrlVQHHtIkgGz77y TA7UZUFb2EQMncfbOhR0OkvQQn1aMvhObFJSR6nI+caf2D+h/m/InMl1MyH3S0Ak YGZZsthnyC6KxqK2A/NApncrOreh70ULkQs45aOKsi1kR1W0zE+iFN+/P19P7AkL Rl3bXBCVd8w+DLhcwRrkf1FCDw6cEqaFm3cGgf5cbBDMaVYAweWTxwBZAq2RbQAW jE7mledcYghcZa4U6bUmCBPuLOnO8KMFAvH+aRzaf3ws5/ZoOVmryyLLJVZ54peZ OwnP9EL4OuWzmXCjBifXR2IAblxs5JYj57tls45nAgMBAAGjggHaMIIB1jASBgNV HRMBAf8ECDAGAQH/AgEAMA4GA1UdDwEB/wQEAwIBBjAdBgNVHQ4EFgQUC2hZPofI oxUa4ECCIl+fHbLFNxUwHwYDVR0jBBgwFoAUoMOLRKo3pUW/l4Ba0fF4opvpXY0w gdYGA1UdIASBzjCByzCByAYEVR0gADCBvzAxBggrBgEFBQcCARYlaHR0cHM6Ly93 d3cuYW9jLmNhdC9DQVRDZXJ0L1JlZ3VsYWNpbzCBiQYIKwYBBQUHAgIwfQx7QXF1 ZXN0IGNlcnRpZmljYXQgw6lzIGVtw6hzIMO6bmljYSBpIGV4Y2x1c2l2YW1lbnQg YSBFbnRpdGF0cyBkZSBDZXJ0aWZpY2FjacOzLiBWZWdldSBodHRwczovL3d3dy5h b2MuY2F0L0NBVENlcnQvUmVndWxhY2lvMDMGCCsGAQUFBwEBBCcwJTAjBggrBgEF BQcwAYYXaHR0cDovL29jc3AuY2F0Y2VydC5jYXQwYgYDVR0fBFswWTBXoFWgU4Yn aHR0cDovL2Vwc2NkLmNhdGNlcnQubmV0L2NybC9lYy1hY2MuY3JshihodHRwOi8v ZXBzY2QyLmNhdGNlcnQubmV0L2NybC9lYy1hY2MuY3JsMA0GCSqGSIb3DQEBCwUA A4IBAQChqFTjlAH5PyIhLjLgEs68CyNNC1+vDuZXRhy22TI83JcvGmQrZosPvVIL PsUXx+C06Pfqmh48Q9S89X9K8w1SdJxP/rZeGEoRiKpwvQzM4ArD9QxyC8jirxex 3Umg9Ai/sXQ+1lBf6xw4HfUUr1WIp7pNHj0ZWLo106urqktcdeAFWme+/klis5fu labCSVPuT/QpwakPrtqOhRms8vgpKiXa/eLtL9ZiA28X/Mker0zlAeTA7Z7uAnp6 oPJTlZu1Gg1ZDJueTWWsLlO+P+Wzm3MRRIbcgdRzm4mdO7ubu26SzX/aQXDhuih+ eVxXDTCfs7GUlxnjOp5j559X/N0A -----END CERTIFICATE----- ` func TestMultipleURLsInCRLDP(t *testing.T) { block, _ := pem.Decode([]byte(multipleURLsInCRLDPPEM)) cert, err := ParseCertificate(block.Bytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } want := []string{ "http://epscd.catcert.net/crl/ec-acc.crl", "http://epscd2.catcert.net/crl/ec-acc.crl", } if got := cert.CRLDistributionPoints; !slices.Equal(got, want) { t.Errorf("CRL distribution points = %#v, want #%v", got, want) } } const hexPKCS1TestPKCS8Key = "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" const hexPKCS1TestECKey = "3081a40201010430bdb9839c08ee793d1157886a7a758a3c8b2a17a4df48f17ace57c72c56b4723cf21dcda21d4e1ad57ff034f19fcfd98ea00706052b81040022a16403620004feea808b5ee2429cfcce13c32160e1c960990bd050bb0fdf7222f3decd0a55008e32a6aa3c9062051c4cba92a7a3b178b24567412d43cdd2f882fa5addddd726fe3e208d2c26d733a773a597abb749714df7256ead5105fa6e7b3650de236b50" var pkcs1MismatchKeyTests = []struct { hexKey string errorContains string }{ {hexKey: hexPKCS1TestPKCS8Key, errorContains: "use ParsePKCS8PrivateKey instead"}, {hexKey: hexPKCS1TestECKey, errorContains: "use ParseECPrivateKey instead"}, } func TestPKCS1MismatchKeyFormat(t *testing.T) { for i, test := range pkcs1MismatchKeyTests { derBytes, _ := hex.DecodeString(test.hexKey) _, err := ParsePKCS1PrivateKey(derBytes) if !strings.Contains(err.Error(), test.errorContains) { t.Errorf("#%d: expected error containing %q, got %s", i, test.errorContains, err) } } } func TestCreateRevocationList(t *testing.T) { ec256Priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA P256 key: %s", err) } _, ed25519Priv, err := ed25519.GenerateKey(rand.Reader) if err != nil { t.Fatalf("Failed to generate Ed25519 key: %s", err) } // Generation command: // 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 utf8CAStr := "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" utf8CABytes, _ := base64.StdEncoding.DecodeString(utf8CAStr) utf8CA, _ := ParseCertificate(utf8CABytes) utf8KeyStr := "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" utf8KeyBytes, _ := base64.StdEncoding.DecodeString(utf8KeyStr) utf8KeyRaw, _ := ParsePKCS8PrivateKey(utf8KeyBytes) utf8Key := utf8KeyRaw.(crypto.Signer) type test struct { name string key crypto.Signer issuer *Certificate template *RevocationList expectedError string } tests := []test{ { name: "nil template", key: ec256Priv, issuer: nil, template: nil, expectedError: "x509: template can not be nil", }, { name: "nil issuer", key: ec256Priv, issuer: nil, template: &RevocationList{}, expectedError: "x509: issuer can not be nil", }, { name: "issuer doesn't have crlSign key usage bit set", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCertSign, }, template: &RevocationList{}, expectedError: "x509: issuer must have the crlSign key usage bit set", }, { name: "issuer missing SubjectKeyId", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, }, template: &RevocationList{}, expectedError: "x509: issuer certificate doesn't contain a subject key identifier", }, { name: "nextUpdate before thisUpdate", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ ThisUpdate: time.Time{}.Add(time.Hour), NextUpdate: time.Time{}, }, expectedError: "x509: template.ThisUpdate is after template.NextUpdate", }, { name: "nil Number", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, expectedError: "x509: template contains nil Number field", }, { name: "long Number", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), Number: big.NewInt(0).SetBytes(append([]byte{1}, make([]byte, 20)...)), }, expectedError: "x509: CRL number exceeds 20 octets", }, { name: "long Number (20 bytes, MSB set)", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), Number: big.NewInt(0).SetBytes(append([]byte{255}, make([]byte, 19)...)), }, expectedError: "x509: CRL number exceeds 20 octets", }, { name: "invalid signature algorithm", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ SignatureAlgorithm: SHA256WithRSA, RevokedCertificates: []pkix.RevokedCertificate{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, expectedError: "x509: requested SignatureAlgorithm does not match private key type", }, { name: "valid", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, reason code", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), ReasonCode: 1, }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, extra entry extension", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), ExtraExtensions: []pkix.Extension{ { Id: []int{2, 5, 29, 99}, Value: []byte{5, 0}, }, }, }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, Ed25519 key", key: ed25519Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, non-default signature algorithm", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ SignatureAlgorithm: ECDSAWithSHA512, RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, extra extension", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), ExtraExtensions: []pkix.Extension{ { Id: []int{2, 5, 29, 99}, Value: []byte{5, 0}, }, }, }, }, { name: "valid, deprecated entries with extension", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificates: []pkix.RevokedCertificate{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), Extensions: []pkix.Extension{ { Id: []int{2, 5, 29, 99}, Value: []byte{5, 0}, }, }, }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid, empty list", key: ec256Priv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, { name: "valid CA with utf8 Subject fields including Email, empty list", key: utf8Key, issuer: utf8CA, template: &RevocationList{ Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }, } if fips140.Version() != "v1.0.0" { mldsaPriv, err := mldsa.GenerateKey(mldsa.MLDSA44()) if err != nil { t.Fatalf("Failed to generate ML-DSA-44 key: %s", err) } tests = append(tests, test{ name: "valid, ML-DSA-44 key", key: mldsaPriv, issuer: &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{ CommonName: "testing", }, SubjectKeyId: []byte{1, 2, 3}, }, template: &RevocationList{ RevokedCertificateEntries: []RevocationListEntry{ { SerialNumber: big.NewInt(2), RevocationTime: time.Time{}.Add(time.Hour), }, }, Number: big.NewInt(5), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), }, }) } for _, tc := range tests { t.Run(tc.name, func(t *testing.T) { crl, err := CreateRevocationList(rand.Reader, tc.template, tc.issuer, tc.key) if err != nil && tc.expectedError == "" { t.Fatalf("CreateRevocationList failed unexpectedly: %s", err) } else if err != nil && tc.expectedError != err.Error() { t.Fatalf("CreateRevocationList failed unexpectedly, wanted: %s, got: %s", tc.expectedError, err) } else if err == nil && tc.expectedError != "" { t.Fatalf("CreateRevocationList didn't fail, expected: %s", tc.expectedError) } if tc.expectedError != "" { return } parsedCRL, err := ParseRevocationList(crl) if err != nil { t.Fatalf("Failed to parse generated CRL: %s", err) } if tc.template.SignatureAlgorithm != UnknownSignatureAlgorithm && parsedCRL.SignatureAlgorithm != tc.template.SignatureAlgorithm { t.Fatalf("SignatureAlgorithm mismatch: got %v; want %v.", parsedCRL.SignatureAlgorithm, tc.template.SignatureAlgorithm) } if len(tc.template.RevokedCertificates) > 0 { if !reflect.DeepEqual(parsedCRL.RevokedCertificates, tc.template.RevokedCertificates) { t.Fatalf("RevokedCertificates mismatch: got %v; want %v.", parsedCRL.RevokedCertificates, tc.template.RevokedCertificates) } } else { if len(parsedCRL.RevokedCertificateEntries) != len(tc.template.RevokedCertificateEntries) { t.Fatalf("RevokedCertificateEntries length mismatch: got %d; want %d.", len(parsedCRL.RevokedCertificateEntries), len(tc.template.RevokedCertificateEntries)) } for i, rce := range parsedCRL.RevokedCertificateEntries { expected := tc.template.RevokedCertificateEntries[i] if rce.SerialNumber.Cmp(expected.SerialNumber) != 0 { t.Fatalf("RevocationListEntry serial mismatch: got %d; want %d.", rce.SerialNumber, expected.SerialNumber) } if !rce.RevocationTime.Equal(expected.RevocationTime) { t.Fatalf("RevocationListEntry revocation time mismatch: got %v; want %v.", rce.RevocationTime, expected.RevocationTime) } if rce.ReasonCode != expected.ReasonCode { t.Fatalf("RevocationListEntry reason code mismatch: got %d; want %d.", rce.ReasonCode, expected.ReasonCode) } } } if len(parsedCRL.Extensions) != 2+len(tc.template.ExtraExtensions) { t.Fatalf("Generated CRL has wrong number of extensions, wanted: %d, got: %d", 2+len(tc.template.ExtraExtensions), len(parsedCRL.Extensions)) } expectedAKI, err := asn1.Marshal(authKeyId{Id: tc.issuer.SubjectKeyId}) if err != nil { t.Fatalf("asn1.Marshal failed: %s", err) } akiExt := pkix.Extension{ Id: oidExtensionAuthorityKeyId, Value: expectedAKI, } if !reflect.DeepEqual(parsedCRL.Extensions[0], akiExt) { t.Fatalf("Unexpected first extension: got %v, want %v", parsedCRL.Extensions[0], akiExt) } expectedNum, err := asn1.Marshal(tc.template.Number) if err != nil { t.Fatalf("asn1.Marshal failed: %s", err) } crlExt := pkix.Extension{ Id: oidExtensionCRLNumber, Value: expectedNum, } if !reflect.DeepEqual(parsedCRL.Extensions[1], crlExt) { t.Fatalf("Unexpected second extension: got %v, want %v", parsedCRL.Extensions[1], crlExt) } // With Go 1.19's updated RevocationList, we can now directly compare // the RawSubject of the certificate to RawIssuer on the parsed CRL. // However, this doesn't work with our hacked issuers above (that // aren't parsed from a proper DER bundle but are instead manually // constructed). Prefer RawSubject when it is set. if len(tc.issuer.RawSubject) > 0 { issuerSubj, err := subjectBytes(tc.issuer) if err != nil { t.Fatalf("failed to get issuer subject: %s", err) } if !bytes.Equal(issuerSubj, parsedCRL.RawIssuer) { t.Fatalf("Unexpected issuer subject; wanted: %v, got: %v", hex.EncodeToString(issuerSubj), hex.EncodeToString(parsedCRL.RawIssuer)) } } else { // When we hack our custom Subject in the test cases above, // we don't set the additional fields (such as Names) in the // hacked issuer. Round-trip a parsing of pkix.Name so that // we add these missing fields for the comparison. issuerRDN := tc.issuer.Subject.ToRDNSequence() var caIssuer pkix.Name caIssuer.FillFromRDNSequence(&issuerRDN) if !reflect.DeepEqual(caIssuer, parsedCRL.Issuer) { t.Fatalf("Expected issuer.Subject, parsedCRL.Issuer to be the same; wanted: %#v, got: %#v", caIssuer, parsedCRL.Issuer) } } if len(parsedCRL.Extensions[2:]) == 0 && len(tc.template.ExtraExtensions) == 0 { // If we don't have anything to check return early so we don't // hit a [] != nil false positive below. return } if !reflect.DeepEqual(parsedCRL.Extensions[2:], tc.template.ExtraExtensions) { t.Fatalf("Extensions mismatch: got %v; want %v.", parsedCRL.Extensions[2:], tc.template.ExtraExtensions) } if tc.template.Number != nil && parsedCRL.Number == nil { t.Fatalf("Generated CRL missing Number: got nil, want %s", tc.template.Number.String()) } if tc.template.Number != nil && tc.template.Number.Cmp(parsedCRL.Number) != 0 { t.Fatalf("Generated CRL has wrong Number: got %s, want %s", parsedCRL.Number.String(), tc.template.Number.String()) } if !bytes.Equal(parsedCRL.AuthorityKeyId, tc.issuer.SubjectKeyId) { t.Fatalf("Generated CRL has wrong AuthorityKeyId: got %x, want %x", parsedCRL.AuthorityKeyId, tc.issuer.SubjectKeyId) } }) } } func TestRSAPSAParameters(t *testing.T) { generateParams := func(hashFunc crypto.Hash) []byte { var hashOID asn1.ObjectIdentifier switch hashFunc { case crypto.SHA256: hashOID = oidSHA256 case crypto.SHA384: hashOID = oidSHA384 case crypto.SHA512: hashOID = oidSHA512 } params := pssParameters{ Hash: pkix.AlgorithmIdentifier{ Algorithm: hashOID, Parameters: asn1.NullRawValue, }, MGF: pkix.AlgorithmIdentifier{ Algorithm: oidMGF1, }, SaltLength: hashFunc.Size(), TrailerField: 1, } mgf1Params := pkix.AlgorithmIdentifier{ Algorithm: hashOID, Parameters: asn1.NullRawValue, } var err error params.MGF.Parameters.FullBytes, err = asn1.Marshal(mgf1Params) if err != nil { t.Fatalf("failed to marshal MGF parameters: %s", err) } serialized, err := asn1.Marshal(params) if err != nil { t.Fatalf("failed to marshal parameters: %s", err) } return serialized } for _, detail := range signatureAlgorithmDetails { if !detail.isRSAPSS { continue } generated := generateParams(detail.hash) if !bytes.Equal(detail.params.FullBytes, generated) { t.Errorf("hardcoded parameters for %s didn't match generated parameters: got (generated) %x, wanted (hardcoded) %x", detail.hash, generated, detail.params.FullBytes) } } } func TestUnknownExtKey(t *testing.T) { const errorContains = "unknown extended key usage" template := &Certificate{ SerialNumber: big.NewInt(10), DNSNames: []string{"foo"}, ExtKeyUsage: []ExtKeyUsage{ExtKeyUsage(-1)}, } _, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), testPrivateKey) if !strings.Contains(err.Error(), errorContains) { t.Errorf("expected error containing %q, got %s", errorContains, err) } } func TestIA5SANEnforcement(t *testing.T) { k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("ecdsa.GenerateKey failed: %s", err) } testURL, err := url.Parse("https://example.com/") if err != nil { t.Fatalf("url.Parse failed: %s", err) } testURL.RawQuery = "∞" marshalTests := []struct { name string template *Certificate expectedError string }{ { name: "marshal: unicode dNSName", template: &Certificate{ SerialNumber: big.NewInt(0), DNSNames: []string{"∞"}, }, expectedError: "x509: \"∞\" cannot be encoded as an IA5String", }, { name: "marshal: unicode rfc822Name", template: &Certificate{ SerialNumber: big.NewInt(0), EmailAddresses: []string{"∞"}, }, expectedError: "x509: \"∞\" cannot be encoded as an IA5String", }, { name: "marshal: unicode uniformResourceIdentifier", template: &Certificate{ SerialNumber: big.NewInt(0), URIs: []*url.URL{testURL}, }, expectedError: "x509: \"https://example.com/?∞\" cannot be encoded as an IA5String", }, } for _, tc := range marshalTests { t.Run(tc.name, func(t *testing.T) { _, err := CreateCertificate(rand.Reader, tc.template, tc.template, k.Public(), k) if err == nil { t.Errorf("expected CreateCertificate to fail with template: %v", tc.template) } else if err.Error() != tc.expectedError { t.Errorf("unexpected error: got %q, want %q", err.Error(), tc.expectedError) } }) } unmarshalTests := []struct { name string cert string expectedError string }{ { name: "unmarshal: unicode dNSName", cert: "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", expectedError: "x509: SAN dNSName is malformed", }, { name: "unmarshal: unicode rfc822Name", cert: "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", expectedError: "x509: SAN rfc822Name is malformed", }, { name: "unmarshal: unicode uniformResourceIdentifier", cert: "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", expectedError: "x509: SAN uniformResourceIdentifier is malformed", }, } for _, tc := range unmarshalTests { der, err := hex.DecodeString(tc.cert) if err != nil { t.Fatalf("failed to decode test cert: %s", err) } _, err = ParseCertificate(der) if err == nil { t.Error("expected CreateCertificate to fail") } else if err.Error() != tc.expectedError { t.Errorf("unexpected error: got %q, want %q", err.Error(), tc.expectedError) } } } func BenchmarkCreateCertificate(b *testing.B) { template := &Certificate{ SerialNumber: big.NewInt(10), DNSNames: []string{"example.com"}, } tests := []struct { name string gen func() crypto.Signer }{ { name: "RSA 2048", gen: func() crypto.Signer { k, err := rsa.GenerateKey(rand.Reader, 2048) if err != nil { b.Fatalf("failed to generate test key: %s", err) } return k }, }, { name: "ECDSA P256", gen: func() crypto.Signer { k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { b.Fatalf("failed to generate test key: %s", err) } return k }, }, } for _, tc := range tests { k := tc.gen() b.ResetTimer() b.Run(tc.name, func(b *testing.B) { for i := 0; i < b.N; i++ { _, err := CreateCertificate(rand.Reader, template, template, k.Public(), k) if err != nil { b.Fatalf("failed to create certificate: %s", err) } } }) } } type brokenSigner struct { pub crypto.PublicKey } func (bs *brokenSigner) Public() crypto.PublicKey { return bs.pub } func (bs *brokenSigner) Sign(_ io.Reader, _ []byte, _ crypto.SignerOpts) ([]byte, error) { return []byte{1, 2, 3}, nil } func TestCreateCertificateBrokenSigner(t *testing.T) { template := &Certificate{ SerialNumber: big.NewInt(10), DNSNames: []string{"example.com"}, } expectedErr := "signature returned by signer is invalid" _, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), &brokenSigner{testPrivateKey.Public()}) if err == nil { t.Fatal("expected CreateCertificate to fail with a broken signer") } else if !strings.Contains(err.Error(), expectedErr) { t.Fatalf("CreateCertificate returned an unexpected error: got %q, want %q", err, expectedErr) } } func TestMismatchedTemplateSignatureAlgorithm(t *testing.T) { rsaPriv := testPrivateKey ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("Failed to generate ECDSA key: %s", err) } _, ed25519Priv, err := ed25519.GenerateKey(rand.Reader) if err != nil { t.Fatalf("Failed to generate Ed25519 key: %s", err) } var mldsa44Priv, mldsa87Priv crypto.Signer if fips140.Version() != "v1.0.0" { k, err := mldsa.GenerateKey(mldsa.MLDSA44()) if err != nil { t.Fatalf("Failed to generate ML-DSA-44 key: %s", err) } mldsa44Priv = k k, err = mldsa.GenerateKey(mldsa.MLDSA87()) if err != nil { t.Fatalf("Failed to generate ML-DSA-87 key: %s", err) } mldsa87Priv = k } const mismatchErr = "x509: requested SignatureAlgorithm does not match private key type" const mldsaParamsErr = "x509: requested SignatureAlgorithm does not match ML-DSA parameters" type test struct { name string key crypto.Signer sigAlgo SignatureAlgorithm wantErr string wantAlgo SignatureAlgorithm } tests := []test{ // Cross-key types: the requested SignatureAlgorithm's public // key type doesn't match the signer's key. {"RSA-key/ECDSA-algo", rsaPriv, ECDSAWithSHA256, mismatchErr, 0}, {"RSA-key/Ed25519-algo", rsaPriv, PureEd25519, mismatchErr, 0}, {"ECDSA-key/RSA-algo", ecdsaPriv, SHA256WithRSA, mismatchErr, 0}, {"ECDSA-key/RSAPSS-algo", ecdsaPriv, SHA256WithRSAPSS, mismatchErr, 0}, {"ECDSA-key/Ed25519-algo", ecdsaPriv, PureEd25519, mismatchErr, 0}, {"Ed25519-key/ECDSA-algo", ed25519Priv, ECDSAWithSHA256, mismatchErr, 0}, {"Ed25519-key/RSA-algo", ed25519Priv, SHA256WithRSA, mismatchErr, 0}, // PKCS#1 v1.5 vs PSS: both are valid for an RSA signer, so // either choice succeeds and the requested algorithm is honored. {"RSA-key/PKCS1v15-algo", rsaPriv, SHA256WithRSA, "", SHA256WithRSA}, {"RSA-key/PSS-algo", rsaPriv, SHA256WithRSAPSS, "", SHA256WithRSAPSS}, } if mldsa44Priv != nil { tests = append(tests, test{"MLDSA-key/ECDSA-algo", mldsa44Priv, ECDSAWithSHA256, mismatchErr, 0}, test{"ECDSA-key/MLDSA-algo", ecdsaPriv, MLDSA44, mismatchErr, 0}, // ML-DSA-44 vs ML-DSA-87: same PublicKeyAlgorithm, but // signingParamsForKey rejects the parameter mismatch. test{"MLDSA44-key/MLDSA87-algo", mldsa44Priv, MLDSA87, mldsaParamsErr, 0}, test{"MLDSA87-key/MLDSA44-algo", mldsa87Priv, MLDSA44, mldsaParamsErr, 0}, test{"MLDSA44-key/MLDSA44-algo", mldsa44Priv, MLDSA44, "", MLDSA44}, test{"MLDSA87-key/MLDSA87-algo", mldsa87Priv, MLDSA87, "", MLDSA87}, ) } check := func(t *testing.T, op string, err error, wantErr string) { t.Helper() if wantErr == "" { if err != nil { t.Errorf("%s: unexpected error: %v", op, err) } return } if err == nil { t.Errorf("%s: expected error containing %q, got nil", op, wantErr) return } if !strings.Contains(err.Error(), wantErr) { t.Errorf("%s: error = %q, want substring %q", op, err, wantErr) } } for _, tc := range tests { t.Run(tc.name, func(t *testing.T) { certTmpl := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "test"}, SignatureAlgorithm: tc.sigAlgo, } certDER, err := CreateCertificate(rand.Reader, certTmpl, certTmpl, tc.key.Public(), tc.key) check(t, "CreateCertificate", err, tc.wantErr) if tc.wantErr == "" && err == nil { cert, err := ParseCertificate(certDER) if err != nil { t.Fatalf("ParseCertificate: %v", err) } if cert.SignatureAlgorithm != tc.wantAlgo { t.Errorf("Certificate.SignatureAlgorithm = %v, want %v", cert.SignatureAlgorithm, tc.wantAlgo) } } csrTmpl := &CertificateRequest{ Subject: pkix.Name{CommonName: "test"}, SignatureAlgorithm: tc.sigAlgo, } csrDER, err := CreateCertificateRequest(rand.Reader, csrTmpl, tc.key) check(t, "CreateCertificateRequest", err, tc.wantErr) if tc.wantErr == "" && err == nil { csr, err := ParseCertificateRequest(csrDER) if err != nil { t.Fatalf("ParseCertificateRequest: %v", err) } if csr.SignatureAlgorithm != tc.wantAlgo { t.Errorf("CertificateRequest.SignatureAlgorithm = %v, want %v", csr.SignatureAlgorithm, tc.wantAlgo) } } crlIssuer := &Certificate{ KeyUsage: KeyUsageCRLSign, Subject: pkix.Name{CommonName: "test"}, SubjectKeyId: []byte{1, 2, 3}, } crlTmpl := &RevocationList{ SignatureAlgorithm: tc.sigAlgo, Number: big.NewInt(1), ThisUpdate: time.Time{}.Add(time.Hour * 24), NextUpdate: time.Time{}.Add(time.Hour * 48), } crlDER, err := CreateRevocationList(rand.Reader, crlTmpl, crlIssuer, tc.key) check(t, "CreateRevocationList", err, tc.wantErr) if tc.wantErr == "" && err == nil { crl, err := ParseRevocationList(crlDER) if err != nil { t.Fatalf("ParseRevocationList: %v", err) } if crl.SignatureAlgorithm != tc.wantAlgo { t.Errorf("RevocationList.SignatureAlgorithm = %v, want %v", crl.SignatureAlgorithm, tc.wantAlgo) } } }) } } func TestCreateCertificateLegacy(t *testing.T) { sigAlg := MD5WithRSA template := &Certificate{ SerialNumber: big.NewInt(10), DNSNames: []string{"example.com"}, SignatureAlgorithm: sigAlg, } _, err := CreateCertificate(rand.Reader, template, template, testPrivateKey.Public(), &brokenSigner{testPrivateKey.Public()}) if err == nil { t.Fatal("CreateCertificate didn't fail when SignatureAlgorithm = MD5WithRSA") } } func (s *CertPool) mustCert(t *testing.T, n int) *Certificate { c, err := s.lazyCerts[n].getCert() if err != nil { t.Fatalf("failed to load cert %d: %v", n, err) } return c } func allCerts(t *testing.T, p *CertPool) []*Certificate { all := make([]*Certificate, p.len()) for i := range all { all[i] = p.mustCert(t, i) } return all } // certPoolEqual reports whether a and b are equal, except for the // function pointers. func certPoolEqual(a, b *CertPool) bool { if (a != nil) != (b != nil) { return false } if a == nil { return true } if !reflect.DeepEqual(a.byName, b.byName) || len(a.lazyCerts) != len(b.lazyCerts) { return false } for i := range a.lazyCerts { la, lb := a.lazyCerts[i], b.lazyCerts[i] if !bytes.Equal(la.rawSubject, lb.rawSubject) { return false } ca, err := la.getCert() if err != nil { panic(err) } cb, err := la.getCert() if err != nil { panic(err) } if !ca.Equal(cb) { return false } } return true } func TestCertificateRequestRoundtripFields(t *testing.T) { urlA, err := url.Parse("https://example.com/_") if err != nil { t.Fatal(err) } urlB, err := url.Parse("https://example.org/_") if err != nil { t.Fatal(err) } in := &CertificateRequest{ DNSNames: []string{"example.com", "example.org"}, EmailAddresses: []string{"a@example.com", "b@example.com"}, IPAddresses: []net.IP{net.IPv4(192, 0, 2, 0), net.IPv6loopback}, URIs: []*url.URL{urlA, urlB}, } out := marshalAndParseCSR(t, in) if !slices.Equal(in.DNSNames, out.DNSNames) { t.Fatalf("Unexpected DNSNames: got %v, want %v", out.DNSNames, in.DNSNames) } if !slices.Equal(in.EmailAddresses, out.EmailAddresses) { t.Fatalf("Unexpected EmailAddresses: got %v, want %v", out.EmailAddresses, in.EmailAddresses) } if len(in.IPAddresses) != len(out.IPAddresses) || !in.IPAddresses[0].Equal(out.IPAddresses[0]) || !in.IPAddresses[1].Equal(out.IPAddresses[1]) { t.Fatalf("Unexpected IPAddresses: got %v, want %v", out.IPAddresses, in.IPAddresses) } if !reflect.DeepEqual(in.URIs, out.URIs) { t.Fatalf("Unexpected URIs: got %v, want %v", out.URIs, in.URIs) } } func BenchmarkParseCertificate(b *testing.B) { cases := []struct { name string pem string }{ { name: "ecdsa leaf", pem: `-----BEGIN CERTIFICATE----- MIIINjCCBx6gAwIBAgIQHdQ6oBMoe/MJAAAAAEHzmTANBgkqhkiG9w0BAQsFADBG MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM QzETMBEGA1UEAxMKR1RTIENBIDFDMzAeFw0yMDEyMDgwOTExMzZaFw0yMTAzMDIw OTExMzVaMBcxFTATBgNVBAMMDCouZ29vZ2xlLmNvbTBZMBMGByqGSM49AgEGCCqG SM49AwEHA0IABEFYegyHh1AHRS1nar5+zYJgMACcsIQMtg0YMyK/59ml8ERIt/JF kXM3XIvQuCJhghUawZrrAcAs8djZF1U9M4mjggYYMIIGFDAOBgNVHQ8BAf8EBAMC B4AwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU 6SWWF36XBsmXJ6iV0EHPXUFoMbwwHwYDVR0jBBgwFoAUinR/r4XN7pXNPZzQ4kYU 83E1HScwagYIKwYBBQUHAQEEXjBcMCcGCCsGAQUFBzABhhtodHRwOi8vb2NzcC5w a2kuZ29vZy9ndHMxYzMwMQYIKwYBBQUHMAKGJWh0dHA6Ly9wa2kuZ29vZy9yZXBv L2NlcnRzL2d0czFjMy5kZXIwggTCBgNVHREEggS5MIIEtYIMKi5nb29nbGUuY29t gg0qLmFuZHJvaWQuY29tghYqLmFwcGVuZ2luZS5nb29nbGUuY29tggkqLmJkbi5k ZXaCEiouY2xvdWQuZ29vZ2xlLmNvbYIYKi5jcm93ZHNvdXJjZS5nb29nbGUuY29t ghgqLmRhdGFjb21wdXRlLmdvb2dsZS5jb22CBiouZy5jb4IOKi5nY3AuZ3Z0Mi5j b22CESouZ2NwY2RuLmd2dDEuY29tggoqLmdncGh0LmNugg4qLmdrZWNuYXBwcy5j boIWKi5nb29nbGUtYW5hbHl0aWNzLmNvbYILKi5nb29nbGUuY2GCCyouZ29vZ2xl LmNsgg4qLmdvb2dsZS5jby5pboIOKi5nb29nbGUuY28uanCCDiouZ29vZ2xlLmNv LnVrgg8qLmdvb2dsZS5jb20uYXKCDyouZ29vZ2xlLmNvbS5hdYIPKi5nb29nbGUu Y29tLmJygg8qLmdvb2dsZS5jb20uY2+CDyouZ29vZ2xlLmNvbS5teIIPKi5nb29n bGUuY29tLnRygg8qLmdvb2dsZS5jb20udm6CCyouZ29vZ2xlLmRlggsqLmdvb2ds ZS5lc4ILKi5nb29nbGUuZnKCCyouZ29vZ2xlLmh1ggsqLmdvb2dsZS5pdIILKi5n b29nbGUubmyCCyouZ29vZ2xlLnBsggsqLmdvb2dsZS5wdIISKi5nb29nbGVhZGFw aXMuY29tgg8qLmdvb2dsZWFwaXMuY26CESouZ29vZ2xlY25hcHBzLmNughQqLmdv b2dsZWNvbW1lcmNlLmNvbYIRKi5nb29nbGV2aWRlby5jb22CDCouZ3N0YXRpYy5j boINKi5nc3RhdGljLmNvbYISKi5nc3RhdGljY25hcHBzLmNuggoqLmd2dDEuY29t ggoqLmd2dDIuY29tghQqLm1ldHJpYy5nc3RhdGljLmNvbYIMKi51cmNoaW4uY29t ghAqLnVybC5nb29nbGUuY29tghMqLndlYXIuZ2tlY25hcHBzLmNughYqLnlvdXR1 YmUtbm9jb29raWUuY29tgg0qLnlvdXR1YmUuY29tghYqLnlvdXR1YmVlZHVjYXRp b24uY29tghEqLnlvdXR1YmVraWRzLmNvbYIHKi55dC5iZYILKi55dGltZy5jb22C GmFuZHJvaWQuY2xpZW50cy5nb29nbGUuY29tggthbmRyb2lkLmNvbYIbZGV2ZWxv cGVyLmFuZHJvaWQuZ29vZ2xlLmNughxkZXZlbG9wZXJzLmFuZHJvaWQuZ29vZ2xl LmNuggRnLmNvgghnZ3BodC5jboIMZ2tlY25hcHBzLmNuggZnb28uZ2yCFGdvb2ds ZS1hbmFseXRpY3MuY29tggpnb29nbGUuY29tgg9nb29nbGVjbmFwcHMuY26CEmdv b2dsZWNvbW1lcmNlLmNvbYIYc291cmNlLmFuZHJvaWQuZ29vZ2xlLmNuggp1cmNo aW4uY29tggp3d3cuZ29vLmdsggh5b3V0dS5iZYILeW91dHViZS5jb22CFHlvdXR1 YmVlZHVjYXRpb24uY29tgg95b3V0dWJla2lkcy5jb22CBXl0LmJlMCEGA1UdIAQa MBgwCAYGZ4EMAQIBMAwGCisGAQQB1nkCBQMwNQYDVR0fBC4wLDAqoCigJoYkaHR0 cDovL2NybC5wa2kuZ29vZy9ndHNyMS9ndHMxYzMuY3JsMBMGCisGAQQB1nkCBAMB Af8EAgUAMA0GCSqGSIb3DQEBCwUAA4IBAQAlDQm5zY7JcPxcJ9ulfTGsWV/m6Pro gLYmAlBUPGKy313aetT4Zjz44ZseVtUOKsXVHh4avPA9O+ta1FgkASlbkgJ05ivb j/+MMqkrLemdMv9Svvx3CNaAq2jJ2E+8GdrA1RzMkiNthJCiRafaPnXnN6hOHGNr GtqYfMHsvrRHW8J2IPHW0/MUHmJ/NDu/vNchxke2OEfCPLtseo3hJt8l8HbH+yE8 DFrt8YVRi1CLomEyuPJDF4og3O3ZsoXuxcPd9UPxULOCxycdolRw8Iv/Xgr082j3 svXC3HUd3apM2Yy3xJAlk/mUkzVXfdJZ+Zy1huNsUoJ+gM8rmpyGhYyx -----END CERTIFICATE-----`, }, { name: "rsa leaf", pem: `-----BEGIN CERTIFICATE----- MIIJXjCCCEagAwIBAgIRAPYaTUsjP4iRBQAAAACHSSgwDQYJKoZIhvcNAQELBQAw QjELMAkGA1UEBhMCVVMxHjAcBgNVBAoTFUdvb2dsZSBUcnVzdCBTZXJ2aWNlczET MBEGA1UEAxMKR1RTIENBIDFPMTAeFw0yMTAxMjYwODQ2MzRaFw0yMTA0MjAwODQ2 MzNaMGYxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRYwFAYDVQQH Ew1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKEwpHb29nbGUgTExDMRUwEwYDVQQDDAwq Lmdvb2dsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC76xx0 UdZ36/41rZNPfQ/yQ05vsBLUO0d+3uMOhvDlpst+XvIsG6L+vLDgf3RiQRFlei0h KqqLOtWLDc/y0+OmaaC+8ft1zljBYdvQlAYoZrT79Cc5pAIDq7G1OZ7cC4ahDno/ n46FHjT/UTUAMYa8cKWBaMPneMIsKvn8nMdZzHkfO2nUd6OEecn90XweMvNmx8De 6h5AlIgG3m66hkD/UCSdxn7yJHBQVdHgkfTqzv3sz2YyBQGNi288F1bn541f6khE fYti1MvXRtkky7yLCQNUG6PtvuSU4cKaNvRklHigf5i1nVdGEuH61gAElZIklSia OVK46UyU4DGtbdWNAgMBAAGjggYpMIIGJTAOBgNVHQ8BAf8EBAMCBaAwEwYDVR0l BAwwCgYIKwYBBQUHAwEwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU8zCvllLd3jhB k//+Wdjo40Q+T3gwHwYDVR0jBBgwFoAUmNH4bhDrz5vsYJ8YkBug630J/SswaAYI KwYBBQUHAQEEXDBaMCsGCCsGAQUFBzABhh9odHRwOi8vb2NzcC5wa2kuZ29vZy9n 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LmdzdGF0aWMuY26CDSouZ3N0YXRpYy5jb22CEiouZ3N0YXRpY2NuYXBwcy5jboIK Ki5ndnQxLmNvbYIKKi5ndnQyLmNvbYIUKi5tZXRyaWMuZ3N0YXRpYy5jb22CDCou dXJjaGluLmNvbYIQKi51cmwuZ29vZ2xlLmNvbYITKi53ZWFyLmdrZWNuYXBwcy5j boIWKi55b3V0dWJlLW5vY29va2llLmNvbYINKi55b3V0dWJlLmNvbYIWKi55b3V0 dWJlZWR1Y2F0aW9uLmNvbYIRKi55b3V0dWJla2lkcy5jb22CByoueXQuYmWCCyou eXRpbWcuY29tghphbmRyb2lkLmNsaWVudHMuZ29vZ2xlLmNvbYILYW5kcm9pZC5j b22CG2RldmVsb3Blci5hbmRyb2lkLmdvb2dsZS5jboIcZGV2ZWxvcGVycy5hbmRy b2lkLmdvb2dsZS5jboIEZy5jb4IIZ2dwaHQuY26CDGdrZWNuYXBwcy5jboIGZ29v LmdsghRnb29nbGUtYW5hbHl0aWNzLmNvbYIKZ29vZ2xlLmNvbYIPZ29vZ2xlY25h cHBzLmNughJnb29nbGVjb21tZXJjZS5jb22CGHNvdXJjZS5hbmRyb2lkLmdvb2ds ZS5jboIKdXJjaGluLmNvbYIKd3d3Lmdvby5nbIIIeW91dHUuYmWCC3lvdXR1YmUu Y29tghR5b3V0dWJlZWR1Y2F0aW9uLmNvbYIPeW91dHViZWtpZHMuY29tggV5dC5i ZTAhBgNVHSAEGjAYMAgGBmeBDAECAjAMBgorBgEEAdZ5AgUDMDMGA1UdHwQsMCow KKAmoCSGImh0dHA6Ly9jcmwucGtpLmdvb2cvR1RTMU8xY29yZS5jcmwwEwYKKwYB BAHWeQIEAwEB/wQCBQAwDQYJKoZIhvcNAQELBQADggEBAHh9/ozYUGRd+W5akWlM 4WvX808TK2oUISnagbxCCFZ2trpg2oi03CJf4o4o3Je5Qzzz10s22oQY6gPHAR0B QHzrpqAveQw9D5vd8xjgtQ/SAujPzPKNQee5511rS7/EKW9I83ccd5XhhoEyx8A1 /65RTS+2hKpJKTMkr0yHBPJV7kUW+n/KIef5YaSOA9VYK7hyH0niDpvm9EmoqvWS U5xAFAe/Xrrq3sxTuDJPQA8alk6h/ql5Klkw6dL53csiPka/MevDqdifWkzuT/6n YK/ePeJzPD17FA9V+N1rcuF3Wk29AZvCOSasdIkIuE82vGr3dfNrsrn9E9lWIbCr Qc4= -----END CERTIFICATE-----`, }, } for _, c := range cases { b.Run(c.name, func(b *testing.B) { pemBlock, _ := pem.Decode([]byte(c.pem)) b.ReportAllocs() b.ResetTimer() for i := 0; i < b.N; i++ { _, err := ParseCertificate(pemBlock.Bytes) if err != nil { b.Fatal(err) } } }) } } func TestRawSignatureAlgorithm(t *testing.T) { // checkAI verifies that raw is a DER-encoded AlgorithmIdentifier with the // expected OID. checkAI := func(t *testing.T, raw []byte, wantOID asn1.ObjectIdentifier) { t.Helper() if len(raw) == 0 { t.Fatal("RawSignatureAlgorithm is empty") } var ai pkix.AlgorithmIdentifier rest, err := asn1.Unmarshal(raw, &ai) if err != nil { t.Fatalf("failed to unmarshal RawSignatureAlgorithm: %s", err) } if len(rest) != 0 { t.Fatalf("trailing data after RawSignatureAlgorithm: %x", rest) } if !ai.Algorithm.Equal(wantOID) { t.Fatalf("unexpected OID: got %v, want %v", ai.Algorithm, wantOID) } } t.Run("Certificate", func(t *testing.T) { p, _ := pem.Decode([]byte(pemCertificate)) cert, err := ParseCertificate(p.Bytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } checkAI(t, cert.RawSignatureAlgorithm, oidSignatureSHA256WithRSA) }) priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatalf("failed to generate key: %s", err) } t.Run("CertificateRequest", func(t *testing.T) { csrDER, err := CreateCertificateRequest(rand.Reader, &CertificateRequest{}, priv) if err != nil { t.Fatalf("failed to create CSR: %s", err) } csr, err := ParseCertificateRequest(csrDER) if err != nil { t.Fatalf("failed to parse CSR: %s", err) } checkAI(t, csr.RawSignatureAlgorithm, oidSignatureECDSAWithSHA256) }) t.Run("RevocationList", func(t *testing.T) { issuerTmpl := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "issuer"}, NotBefore: time.Now(), NotAfter: time.Now().Add(time.Hour), KeyUsage: KeyUsageCRLSign, IsCA: true, BasicConstraintsValid: true, } issuerDER, err := CreateCertificate(rand.Reader, issuerTmpl, issuerTmpl, priv.Public(), priv) if err != nil { t.Fatalf("failed to create issuer: %s", err) } issuer, err := ParseCertificate(issuerDER) if err != nil { t.Fatalf("failed to parse issuer: %s", err) } crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{ Number: big.NewInt(1), ThisUpdate: time.Now(), NextUpdate: time.Now().Add(time.Hour), }, issuer, priv) if err != nil { t.Fatalf("failed to create CRL: %s", err) } crl, err := ParseRevocationList(crlDER) if err != nil { t.Fatalf("failed to parse CRL: %s", err) } checkAI(t, crl.RawSignatureAlgorithm, oidSignatureECDSAWithSHA256) }) } func TestParseCertificateRawEquals(t *testing.T) { p, _ := pem.Decode([]byte(pemCertificate)) cert, err := ParseCertificate(p.Bytes) if err != nil { t.Fatalf("failed to parse certificate: %s", err) } if !bytes.Equal(p.Bytes, cert.Raw) { t.Fatalf("unexpected Certificate.Raw\ngot: %x\nwant: %x\n", cert.Raw, p.Bytes) } } // mismatchingSigAlgIDPEM contains a certificate where the Certificate // signatureAlgorithm and the TBSCertificate signature contain // mismatching OIDs const mismatchingSigAlgIDPEM = `-----BEGIN CERTIFICATE----- MIIBBzCBrqADAgECAgEAMAoGCCqGSM49BAMCMAAwIhgPMDAwMTAxMDEwMDAwMDBa GA8wMDAxMDEwMTAwMDAwMFowADBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOqV EDuVXxwZgIU3+dOwv1SsMu0xuV48hf7xmK8n7sAMYgllB+96DnPqBeboJj4snYnx 0AcE0PDVQ1l4Z3YXsQWjFTATMBEGA1UdEQEB/wQHMAWCA2FzZDAKBggqhkjOPQQD AwNIADBFAiBi1jz/T2HT5nAfrD7zsgR+68qh7Erc6Q4qlxYBOgKG4QIhAOtjIn+Q tA+bq+55P3ntxTOVRq0nv1mwnkjwt9cQR9Fn -----END CERTIFICATE-----` // mismatchingSigAlgParamPEM contains a certificate where the Certificate // signatureAlgorithm and the TBSCertificate signature contain // mismatching parameters const mismatchingSigAlgParamPEM = `-----BEGIN CERTIFICATE----- MIIBCTCBrqADAgECAgEAMAoGCCqGSM49BAMCMAAwIhgPMDAwMTAxMDEwMDAwMDBa GA8wMDAxMDEwMTAwMDAwMFowADBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOqV EDuVXxwZgIU3+dOwv1SsMu0xuV48hf7xmK8n7sAMYgllB+96DnPqBeboJj4snYnx 0AcE0PDVQ1l4Z3YXsQWjFTATMBEGA1UdEQEB/wQHMAWCA2FzZDAMBggqhkjOPQQD AgUAA0gAMEUCIGLWPP9PYdPmcB+sPvOyBH7ryqHsStzpDiqXFgE6AobhAiEA62Mi f5C0D5ur7nk/ee3FM5VGrSe/WbCeSPC31xBH0Wc= -----END CERTIFICATE-----` func TestSigAlgMismatch(t *testing.T) { for _, certPEM := range []string{mismatchingSigAlgIDPEM, mismatchingSigAlgParamPEM} { b, _ := pem.Decode([]byte(certPEM)) if b == nil { t.Fatalf("couldn't decode test certificate") } _, err := ParseCertificate(b.Bytes) if err == nil { t.Fatalf("expected ParseCertificate to fail") } expected := "x509: inner and outer signature algorithm identifiers don't match" if err.Error() != expected { t.Errorf("unexpected error from ParseCertificate: got %q, want %q", err.Error(), expected) } } } const optionalAuthKeyIDPEM = `-----BEGIN CERTIFICATE----- MIIFEjCCBHugAwIBAgICAQwwDQYJKoZIhvcNAQEFBQAwgbsxJDAiBgNVBAcTG1Zh bGlDZXJ0IFZhbGlkYXRpb24gTmV0d29yazEXMBUGA1UEChMOVmFsaUNlcnQsIElu Yy4xNTAzBgNVBAsTLFZhbGlDZXJ0IENsYXNzIDIgUG9saWN5IFZhbGlkYXRpb24g QXV0aG9yaXR5MSEwHwYDVQQDExhodHRwOi8vd3d3LnZhbGljZXJ0LmNvbS8xIDAe BgkqhkiG9w0BCQEWEWluZm9AdmFsaWNlcnQuY29tMB4XDTA0MDYyOTE3MzkxNloX DTI0MDYyOTE3MzkxNlowaDELMAkGA1UEBhMCVVMxJTAjBgNVBAoTHFN0YXJmaWVs ZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAsTKVN0YXJmaWVsZCBDbGFzcyAy IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIIBIDANBgkqhkiG9w0BAQEFAAOCAQ0A MIIBCAKCAQEAtzLI/ulxpgSFrQwRZN/OTe/IAxiHP6Gr+zymn/DDodrU2G4rU5D7 JKQ+hPCe6F/s5SdE9SimP3ve4CrwyK9TL57KBQGTHo9mHDmnTfpatnMEJWbrd3/n WcZKmSUUVOsmx/N/GdUwcI+vsEYq/63rKe3Xn6oEh6PU+YmlNF/bQ5GCNtlmPLG4 uYL9nDo+EMg77wZlZnqbGRg9/3FRPDAuX749d3OyXQZswyNWmiuFJpIcpwKz5D8N rwh5grg2Peqc0zWzvGnK9cyd6P1kjReAM25eSl2ZyR6HtJ0awNVuEzUjXt+bXz3v 1vd2wuo+u3gNHEJnawTY+Nbab4vyRKABqwIBA6OCAfMwggHvMB0GA1UdDgQWBBS/ X7fRzt0fhvRbVazc1xDCDqmI5zCB0gYDVR0jBIHKMIHHoYHBpIG+MIG7MSQwIgYD VQQHExtWYWxpQ2VydCBWYWxpZGF0aW9uIE5ldHdvcmsxFzAVBgNVBAoTDlZhbGlD ZXJ0LCBJbmMuMTUwMwYDVQQLEyxWYWxpQ2VydCBDbGFzcyAyIFBvbGljeSBWYWxp ZGF0aW9uIEF1dGhvcml0eTEhMB8GA1UEAxMYaHR0cDovL3d3dy52YWxpY2VydC5j b20vMSAwHgYJKoZIhvcNAQkBFhFpbmZvQHZhbGljZXJ0LmNvbYIBATAPBgNVHRMB Af8EBTADAQH/MDkGCCsGAQUFBwEBBC0wKzApBggrBgEFBQcwAYYdaHR0cDovL29j c3Auc3RhcmZpZWxkdGVjaC5jb20wSgYDVR0fBEMwQTA/oD2gO4Y5aHR0cDovL2Nl cnRpZmljYXRlcy5zdGFyZmllbGR0ZWNoLmNvbS9yZXBvc2l0b3J5L3Jvb3QuY3Js MFEGA1UdIARKMEgwRgYEVR0gADA+MDwGCCsGAQUFBwIBFjBodHRwOi8vY2VydGlm aWNhdGVzLnN0YXJmaWVsZHRlY2guY29tL3JlcG9zaXRvcnkwDgYDVR0PAQH/BAQD AgEGMA0GCSqGSIb3DQEBBQUAA4GBAKVi8afCXSWlcD284ipxs33kDTcdVWptobCr mADkhWBKIMuh8D1195TaQ39oXCUIuNJ9MxB73HZn8bjhU3zhxoNbKXuNSm8uf0So GkVrMgfHeMpkksK0hAzc3S1fTbvdiuo43NlmouxBulVtWmQ9twPMHOKRUJ7jCUSV FxdzPcwl -----END CERTIFICATE-----` func TestAuthKeyIdOptional(t *testing.T) { b, _ := pem.Decode([]byte(optionalAuthKeyIDPEM)) if b == nil { t.Fatalf("couldn't decode test certificate") } _, err := ParseCertificate(b.Bytes) if err != nil { t.Fatalf("ParseCertificate to failed to parse certificate with optional authority key identifier fields: %s", err) } } const largeOIDPEM = ` Certificate: Data: Version: 3 (0x2) Serial Number: da:ba:53:19:1b:09:4b:82:b2:89:26:7d:c7:6f:a0:02 Signature Algorithm: sha256WithRSAEncryption Issuer: O = Acme Co Validity Not Before: Dec 21 16:59:27 2021 GMT Not After : Dec 21 16:59:27 2022 GMT Subject: O = Acme Co Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public-Key: (2048 bit) Modulus: 00:bf:17:16:d8:bc:29:9c:16:e5:76:b4:93:15:78: ad:6e:45:c5:4a:63:46:a1:b2:76:71:65:51:9c:14: c4:ea:74:13:e4:34:df:2f:2c:65:11:e8:56:52:69: 11:f9:0e:fc:77:bb:63:a8:7c:1a:c6:a1:7b:6e:6c: e7:18:25:25:c9:e8:fb:06:7f:a2:a9:98:fe:2a:bc: 8a:b3:75:b6:b8:7d:b6:c9:6b:29:08:32:22:10:cb: 8d:d6:60:c8:83:ad:f5:58:91:d6:11:e8:55:56:fb: 8f:a3:a2:9f:48:cb:79:e4:65:4a:8c:a6:52:64:9f: 99:38:35:d4:d5:ac:6f:cf:a0:cb:42:8c:07:eb:21: 17:31:3a:eb:91:7b:62:43:a4:75:5f:ef:a7:2f:94: f8:69:0b:d4:ec:09:e6:00:c0:8c:dd:07:63:0b:e4: 77:aa:60:18:3c:a0:e0:ae:0a:ea:0e:52:3b:b4:fa: 6a:30:1b:50:62:21:73:53:33:01:60:a1:6b:99:58: 00:f3:77:c6:0f:46:19:ca:c2:5d:cd:f5:e2:52:4d: 84:94:23:d3:32:2f:ae:5f:da:43:a1:19:95:d2:17: dd:49:14:b4:d9:48:1c:08:13:93:8e:d5:09:43:21: b6:ce:52:e8:87:bb:d2:60:0d:c6:4e:bf:c5:93:6a: c6:bf Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Key Usage: critical Digital Signature, Key Encipherment X509v3 Extended Key Usage: TLS Web Server Authentication X509v3 Basic Constraints: critical CA:FALSE X509v3 Subject Alternative Name: DNS:longOID.example X509v3 Certificate Policies: Policy: 1.3.6.1.4.1.311.21.8.1492336001 Signature Algorithm: sha256WithRSAEncryption 72:77:8b:de:48:fb:6d:9a:94:b1:be:d4:90:7d:4c:e6:d3:79: fa:fb:fc:3e:d5:3d:e9:a0:ce:28:2b:2f:94:77:3f:87:f8:9c: 9f:91:1c:f3:f6:58:91:15:6b:24:b9:ca:ae:9f:ee:ca:c8:31: db:1a:3d:bb:6b:83:6d:bc:81:8b:a1:79:d5:3e:bb:dd:93:fe: 35:3e:b7:99:e0:d6:eb:58:0c:fd:42:73:dc:49:da:e2:b7:ae: 15:ee:e6:cc:aa:ef:91:41:9a:18:46:8d:4a:39:65:a2:85:3c: 7f:0c:41:f8:0b:9c:e8:1f:35:36:60:8d:8c:e0:8e:18:b1:06: 57:d0:4e:c4:c3:cd:8f:6f:e7:76:02:52:da:03:43:61:2b:b3: bf:19:fd:73:0d:6a:0b:b4:b6:cb:a9:6f:70:4e:53:2a:54:07: b3:74:fd:85:49:57:5b:23:8d:8c:6b:53:2b:09:e8:41:a5:80: 3f:69:1b:11:d1:6b:13:35:2e:f9:d6:50:15:d9:91:38:42:43: e9:17:af:67:d9:96:a4:d1:6a:4f:cc:b4:a7:8e:48:1f:00:72: 69:de:4d:f1:73:a4:47:12:67:e9:f9:07:3e:79:75:90:42:b8: d4:b5:fd:d1:7e:35:04:f7:00:04:cf:f1:36:be:0f:27:81:1f: a6:ba:88:6c -----BEGIN CERTIFICATE----- MIIDHTCCAgWgAwIBAgIRANq6UxkbCUuCsokmfcdvoAIwDQYJKoZIhvcNAQELBQAw EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0yMTEyMjExNjU5MjdaFw0yMjEyMjExNjU5 MjdaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw ggEKAoIBAQC/FxbYvCmcFuV2tJMVeK1uRcVKY0ahsnZxZVGcFMTqdBPkNN8vLGUR 6FZSaRH5Dvx3u2OofBrGoXtubOcYJSXJ6PsGf6KpmP4qvIqzdba4fbbJaykIMiIQ y43WYMiDrfVYkdYR6FVW+4+jop9Iy3nkZUqMplJkn5k4NdTVrG/PoMtCjAfrIRcx OuuRe2JDpHVf76cvlPhpC9TsCeYAwIzdB2ML5HeqYBg8oOCuCuoOUju0+mowG1Bi IXNTMwFgoWuZWADzd8YPRhnKwl3N9eJSTYSUI9MyL65f2kOhGZXSF91JFLTZSBwI E5OO1QlDIbbOUuiHu9JgDcZOv8WTasa/AgMBAAGjbjBsMA4GA1UdDwEB/wQEAwIF oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBoGA1UdEQQTMBGC D2xvbmdPSUQuZXhhbXBsZTAbBgNVHSAEFDASMBAGDisGAQQBgjcVCIXHzPsBMA0G CSqGSIb3DQEBCwUAA4IBAQByd4veSPttmpSxvtSQfUzm03n6+/w+1T3poM4oKy+U dz+H+JyfkRzz9liRFWskucqun+7KyDHbGj27a4NtvIGLoXnVPrvdk/41PreZ4Nbr WAz9QnPcSdrit64V7ubMqu+RQZoYRo1KOWWihTx/DEH4C5zoHzU2YI2M4I4YsQZX 0E7Ew82Pb+d2AlLaA0NhK7O/Gf1zDWoLtLbLqW9wTlMqVAezdP2FSVdbI42Ma1Mr CehBpYA/aRsR0WsTNS751lAV2ZE4QkPpF69n2Zak0WpPzLSnjkgfAHJp3k3xc6RH Emfp+Qc+eXWQQrjUtf3RfjUE9wAEz/E2vg8ngR+muohs -----END CERTIFICATE-----` func TestLargeOID(t *testing.T) { // See Issue 49678. b, _ := pem.Decode([]byte(largeOIDPEM)) if b == nil { t.Fatalf("couldn't decode test certificate") } _, err := ParseCertificate(b.Bytes) if err != nil { t.Fatalf("ParseCertificate to failed to parse certificate with large OID: %s", err) } } const uniqueIDPEM = `-----BEGIN CERTIFICATE----- MIIFsDCCBJigAwIBAgIILOyC1ydafZMwDQYJKoZIhvcNAQEFBQAwgY4xgYswgYgG A1UEAx6BgABNAGkAYwByAG8AcwBvAGYAdAAgAEYAbwByAGUAZgByAG8AbgB0ACAA VABNAEcAIABIAFQAVABQAFMAIABJAG4AcwBwAGUAYwB0AGkAbwBuACAAQwBlAHIA dABpAGYAaQBjAGEAdABpAG8AbgAgAEEAdQB0AGgAbwByAGkAdAB5MB4XDTE0MDEx ODAwNDEwMFoXDTE1MTExNTA5Mzc1NlowgZYxCzAJBgNVBAYTAklEMRAwDgYDVQQI EwdqYWthcnRhMRIwEAYDVQQHEwlJbmRvbmVzaWExHDAaBgNVBAoTE3N0aG9ub3Jl aG90ZWxyZXNvcnQxHDAaBgNVBAsTE3N0aG9ub3JlaG90ZWxyZXNvcnQxJTAjBgNV BAMTHG1haWwuc3Rob25vcmVob3RlbHJlc29ydC5jb20wggEiMA0GCSqGSIb3DQEB AQUAA4IBDwAwggEKAoIBAQCvuu0qpI+Ko2X84Twkf84cRD/rgp6vpgc5Ebejx/D4 PEVON5edZkazrMGocK/oQqIlRxx/lefponN/chlGcllcVVPWTuFjs8k+Aat6T1qp 4iXxZekAqX+U4XZMIGJD3PckPL6G2RQSlF7/LhGCsRNRdKpMWSTbou2Ma39g52Kf gsl3SK/GwLiWpxpcSkNQD1hugguEIsQYLxbeNwpcheXZtxbBGguPzQ7rH8c5vuKU BkMOzaiNKLzHbBdFSrua8KWwCJg76Vdq/q36O9GlW6YgG3i+A4pCJjXWerI1lWwX Ktk5V+SvUHGey1bkDuZKJ6myMk2pGrrPWCT7jP7WskChAgMBAAGBCQBCr1dgEleo cKOCAfswggH3MIHDBgNVHREEgbswgbiCHG1haWwuc3Rob25vcmVob3RlbHJlc29y dC5jb22CIGFzaGNoc3ZyLnN0aG9ub3JlaG90ZWxyZXNvcnQuY29tgiRBdXRvRGlz Y292ZXIuc3Rob25vcmVob3RlbHJlc29ydC5jb22CHEF1dG9EaXNjb3Zlci5ob3Rl bHJlc29ydC5jb22CCEFTSENIU1ZSghdzdGhvbm9yZWhvdGVscmVzb3J0LmNvbYIP aG90ZWxyZXNvcnQuY29tMCEGCSsGAQQBgjcUAgQUHhIAVwBlAGIAUwBlAHIAdgBl AHIwHQYDVR0OBBYEFMAC3UR4FwAdGekbhMgnd6lMejtbMAsGA1UdDwQEAwIFoDAT BgNVHSUEDDAKBggrBgEFBQcDATAJBgNVHRMEAjAAMIG/BgNVHQEEgbcwgbSAFGfF 6xihk+gJJ5TfwvtWe1UFnHLQoYGRMIGOMYGLMIGIBgNVBAMegYAATQBpAGMAcgBv AHMAbwBmAHQAIABGAG8AcgBlAGYAcgBvAG4AdAAgAFQATQBHACAASABUAFQAUABT ACAASQBuAHMAcABlAGMAdABpAG8AbgAgAEMAZQByAHQAaQBmAGkAYwBhAHQAaQBv AG4AIABBAHUAdABoAG8AcgBpAHQAeYIIcKhXEmBXr0IwDQYJKoZIhvcNAQEFBQAD ggEBABlSxyCMr3+ANr+WmPSjyN5YCJBgnS0IFCwJAzIYP87bcTye/U8eQ2+E6PqG Q7Huj7nfHEw9qnGo+HNyPp1ad3KORzXDb54c6xEoi+DeuPzYHPbn4c3hlH49I0aQ eWW2w4RslSWpLvO6Y7Lboyz2/Thk/s2kd4RHxkkWpH2ltPqJuYYg3X6oM5+gIFHJ WGnh+ojZ5clKvS5yXh3Wkj78M6sb32KfcBk0Hx6NkCYPt60ODYmWtvqwtw6r73u5 TnTYWRNvo2svX69TriL+CkHY9O1Hkwf2It5zHl3gNiKTJVaak8AuEz/CKWZneovt yYLwhUhg3PX5Co1VKYE+9TxloiE= -----END CERTIFICATE-----` func TestParseUniqueID(t *testing.T) { b, _ := pem.Decode([]byte(uniqueIDPEM)) if b == nil { t.Fatalf("couldn't decode test certificate") } cert, err := ParseCertificate(b.Bytes) if err != nil { t.Fatalf("ParseCertificate to failed to parse certificate with unique identifier id: %s", err) } if len(cert.Extensions) != 7 { t.Fatalf("unexpected number of extensions (probably because the extension section was not parsed): got %d, want 7", len(cert.Extensions)) } } func TestDisableSHA1ForCertOnly(t *testing.T) { t.Setenv("GODEBUG", "") tmpl := &Certificate{ SerialNumber: big.NewInt(1), NotBefore: time.Now().Add(-time.Hour), NotAfter: time.Now().Add(time.Hour), SignatureAlgorithm: SHA1WithRSA, BasicConstraintsValid: true, IsCA: true, KeyUsage: KeyUsageCertSign | KeyUsageCRLSign, } certDER, err := CreateCertificate(rand.Reader, tmpl, tmpl, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("failed to generate test cert: %s", err) } cert, err := ParseCertificate(certDER) if err != nil { t.Fatalf("failed to parse test cert: %s", err) } err = cert.CheckSignatureFrom(cert) if err == nil { t.Error("expected CheckSignatureFrom to fail") } else if _, ok := err.(InsecureAlgorithmError); !ok { t.Errorf("expected InsecureAlgorithmError error, got %T", err) } crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{ SignatureAlgorithm: SHA1WithRSA, Number: big.NewInt(1), ThisUpdate: time.Now().Add(-time.Hour), NextUpdate: time.Now().Add(time.Hour), }, cert, rsaPrivateKey) if err != nil { t.Fatalf("failed to generate test CRL: %s", err) } crl, err := ParseRevocationList(crlDER) if err != nil { t.Fatalf("failed to parse test CRL: %s", err) } if err = crl.CheckSignatureFrom(cert); err != nil { t.Errorf("unexpected error: %s", err) } // This is an unrelated OCSP response, which will fail signature verification // but shouldn't return an InsecureAlgorithmError, since SHA1 should be allowed // for OCSP. ocspTBSHex := "30819fa2160414884451ff502a695e2d88f421bad90cf2cecbea7c180f32303133303631383037323434335a30743072304a300906052b0e03021a0500041448b60d38238df8456e4ee5843ea394111802979f0414884451ff502a695e2d88f421bad90cf2cecbea7c021100f78b13b946fc9635d8ab49de9d2148218000180f32303133303631383037323434335aa011180f32303133303632323037323434335a" ocspTBS, err := hex.DecodeString(ocspTBSHex) if err != nil { t.Fatalf("failed to decode OCSP response TBS hex: %s", err) } err = cert.CheckSignature(SHA1WithRSA, ocspTBS, nil) if err != rsa.ErrVerification { t.Errorf("unexpected error: %s", err) } } func TestParseRevocationList(t *testing.T) { derBytes := fromBase64(derCRLBase64) certList, err := ParseRevocationList(derBytes) if err != nil { t.Errorf("error parsing: %s", err) return } numCerts := len(certList.RevokedCertificateEntries) numCertsDeprecated := len(certList.RevokedCertificateEntries) expected := 88 if numCerts != expected || numCertsDeprecated != expected { t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected) } } func TestRevocationListCheckSignatureFrom(t *testing.T) { goodKey, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader) if err != nil { t.Fatalf("failed to generate test key: %s", err) } badKey, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader) if err != nil { t.Fatalf("failed to generate test key: %s", err) } tests := []struct { name string issuer *Certificate err string }{ { name: "valid", issuer: &Certificate{ Version: 3, BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: ECDSA, PublicKey: goodKey.Public(), }, }, { name: "valid, key usage set", issuer: &Certificate{ Version: 3, BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: ECDSA, PublicKey: goodKey.Public(), KeyUsage: KeyUsageCRLSign, }, }, { name: "invalid issuer, wrong key usage", issuer: &Certificate{ Version: 3, BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: ECDSA, PublicKey: goodKey.Public(), KeyUsage: KeyUsageCertSign, }, err: "x509: invalid signature: parent certificate cannot sign this kind of certificate", }, { name: "invalid issuer, no basic constraints/ca", issuer: &Certificate{ Version: 3, PublicKeyAlgorithm: ECDSA, PublicKey: goodKey.Public(), }, err: "x509: invalid signature: parent certificate cannot sign this kind of certificate", }, { name: "invalid issuer, unsupported public key type", issuer: &Certificate{ Version: 3, BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: UnknownPublicKeyAlgorithm, PublicKey: goodKey.Public(), }, err: "x509: cannot verify signature: algorithm unimplemented", }, { name: "wrong key", issuer: &Certificate{ Version: 3, BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: ECDSA, PublicKey: badKey.Public(), }, err: "x509: ECDSA verification failure", }, } crlIssuer := &Certificate{ BasicConstraintsValid: true, IsCA: true, PublicKeyAlgorithm: ECDSA, PublicKey: goodKey.Public(), KeyUsage: KeyUsageCRLSign, SubjectKeyId: []byte{1, 2, 3}, } for _, tc := range tests { t.Run(tc.name, func(t *testing.T) { crlDER, err := CreateRevocationList(rand.Reader, &RevocationList{Number: big.NewInt(1)}, crlIssuer, goodKey) if err != nil { t.Fatalf("failed to generate CRL: %s", err) } crl, err := ParseRevocationList(crlDER) if err != nil { t.Fatalf("failed to parse test CRL: %s", err) } err = crl.CheckSignatureFrom(tc.issuer) if err != nil && err.Error() != tc.err { t.Errorf("unexpected error: got %s, want %s", err, tc.err) } else if err == nil && tc.err != "" { t.Errorf("CheckSignatureFrom did not fail: want %s", tc.err) } }) } } func TestOmitEmptyExtensions(t *testing.T) { k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatal(err) } tmpl := &Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{ CommonName: ":)", }, NotAfter: time.Now().Add(time.Hour), NotBefore: time.Now().Add(-time.Hour), } der, err := CreateCertificate(rand.Reader, tmpl, tmpl, k.Public(), k) if err != nil { t.Fatal(err) } emptyExtSeq := []byte{0xA3, 0x02, 0x30, 0x00} if bytes.Contains(der, emptyExtSeq) { t.Error("DER encoding contains the an empty extensions SEQUENCE") } } var negativeSerialCert = `-----BEGIN CERTIFICATE----- MIIBBTCBraADAgECAgH/MAoGCCqGSM49BAMCMA0xCzAJBgNVBAMTAjopMB4XDTIy MDQxNDIzNTYwNFoXDTIyMDQxNTAxNTYwNFowDTELMAkGA1UEAxMCOikwWTATBgcq hkjOPQIBBggqhkjOPQMBBwNCAAQ9ezsIsj+q17K87z/PXE/rfGRN72P/Wyn5d6oo 5M0ZbSatuntMvfKdX79CQxXAxN4oXk3Aov4jVSG12AcDI8ShMAoGCCqGSM49BAMC A0cAMEQCIBzfBU5eMPT6m5lsR6cXaJILpAaiD9YxOl4v6dT3rzEjAiBHmjnHmAss RqUAyJKFzqZxOlK2q4j2IYnuj5+LrLGbQA== -----END CERTIFICATE-----` func TestParseNegativeSerial(t *testing.T) { pemBlock, _ := pem.Decode([]byte(negativeSerialCert)) _, err := ParseCertificate(pemBlock.Bytes) if err == nil { t.Fatal("parsed certificate with negative serial") } } func TestCreateNegativeSerial(t *testing.T) { k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) if err != nil { t.Fatal(err) } tmpl := &Certificate{ SerialNumber: big.NewInt(-1), Subject: pkix.Name{ CommonName: ":)", }, NotAfter: time.Now().Add(time.Hour), NotBefore: time.Now().Add(-time.Hour), } expectedErr := "x509: serial number must be positive" _, err = CreateCertificate(rand.Reader, tmpl, tmpl, k.Public(), k) if err == nil || err.Error() != expectedErr { t.Errorf("CreateCertificate returned unexpected error: want %q, got %q", expectedErr, err) } } const dupExtCert = `-----BEGIN CERTIFICATE----- MIIBrjCCARegAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwR0ZXN0 MCIYDzAwMDEwMTAxMDAwMDAwWhgPMDAwMTAxMDEwMDAwMDBaMA8xDTALBgNVBAMT BHRlc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMiFchnHms9l9NninAIz SkY9acwl9Bk2AtmJrNCenFpiA17AcOO5q8DJYwdXi6WPKlVgcyH+ysW8XMWkq+CP yhtF/+LMzl9odaUF2iUy3vgTC5gxGLWH5URVssx21Und2Pm2f4xyou5IVxbS9dxy jLvV9PEY9BIb0H+zFthjhihDAgMBAAGjFjAUMAgGAioDBAIFADAIBgIqAwQCBQAw DQYJKoZIhvcNAQELBQADgYEAlhQ4TQQKIQ8GUyzGiN/75TCtQtjhMGemxc0cNgre d9rmm4DjydH0t7/sMCB56lQrfhJNplguzsbjFW4l245KbNKHfLiqwEGUgZjBNKur ot6qX/skahLtt0CNOaFIge75HVKe/69OrWQGdp18dkay/KS4Glu8YMKIjOhfrUi1 NZA= -----END CERTIFICATE-----` func TestDuplicateExtensionsCert(t *testing.T) { b, _ := pem.Decode([]byte(dupExtCert)) if b == nil { t.Fatalf("couldn't decode test certificate") } _, err := ParseCertificate(b.Bytes) if err == nil { t.Fatal("ParseCertificate should fail when parsing certificate with duplicate extensions") } } const dupExtCSR = `-----BEGIN CERTIFICATE REQUEST----- MIIBczCB3QIBADAPMQ0wCwYDVQQDEwR0ZXN0MIGfMA0GCSqGSIb3DQEBAQUAA4GN ADCBiQKBgQC5PbxMGVJ8aLF9lq/EvGObXTRMB7ieiZL9N+DJZg1n/ECCnZLIvYrr ZmmDV7YZsClgxKGfjJB0RQFFyZElFM9EfHEs8NJdidDKCRdIhDXQWRyhXKevHvdm CQNKzUeoxvdHpU/uscSkw6BgUzPyLyTx9A6ye2ix94z8Y9hGOBO2DQIDAQABoCUw IwYJKoZIhvcNAQkOMRYwFDAIBgIqAwQCBQAwCAYCKgMEAgUAMA0GCSqGSIb3DQEB CwUAA4GBAHROEsE7URk1knXmBnQtIHwoq663vlMcX3Hes58pUy020rWP8QkocA+X VF18/phg3p5ILlS4fcbbP2bEeV0pePo2k00FDPsJEKCBAX2LKxbU7Vp2OuV2HM2+ VLOVx0i+/Q7fikp3hbN1JwuMTU0v2KL/IKoUcZc02+5xiYrnOIt5 -----END CERTIFICATE REQUEST-----` func TestDuplicateExtensionsCSR(t *testing.T) { b, _ := pem.Decode([]byte(dupExtCSR)) if b == nil { t.Fatalf("couldn't decode test CSR") } _, err := ParseCertificateRequest(b.Bytes) if err == nil { t.Fatal("ParseCertificateRequest should fail when parsing CSR with duplicate extensions") } } const dupAttCSR = `-----BEGIN CERTIFICATE REQUEST----- MIIBbDCB1gIBADAPMQ0wCwYDVQQDEwR0ZXN0MIGfMA0GCSqGSIb3DQEBAQUAA4GN ADCBiQKBgQCj5Po3PKO/JNuxr+B+WNfMIzqqYztdlv+mTQhT0jOR5rTkUvxeeHH8 YclryES2dOISjaUOTmOAr5GQIIdQl4Ql33Cp7ZR/VWcRn+qvTak0Yow+xVsDo0n4 7IcvvP6CJ7FRoYBUakVczeXLxCjLwdyK16VGJM06eRzDLykPxpPwLQIDAQABoB4w DQYCKgMxBwwFdGVzdDEwDQYCKgMxBwwFdGVzdDIwDQYJKoZIhvcNAQELBQADgYEA UJ8hsHxtnIeqb2ufHnQFJO+wEJhx2Uxm/BTuzHOeffuQkwATez4skZ7SlX9exgb7 6jRMRilqb4F7f8w+uDoqxRrA9zc8mwY16zPsyBhRet+ZGbj/ilgvGmtZ21qZZ/FU 0pJFJIVLM3l49Onr5uIt5+hCWKwHlgE0nGpjKLR3cMg= -----END CERTIFICATE REQUEST-----` func TestDuplicateAttributesCSR(t *testing.T) { b, _ := pem.Decode([]byte(dupAttCSR)) if b == nil { t.Fatalf("couldn't decode test CSR") } _, err := ParseCertificateRequest(b.Bytes) if err != nil { t.Fatal("ParseCertificateRequest should succeed when parsing CSR with duplicate attributes") } } func TestCertificateOIDPoliciesGODEBUG(t *testing.T) { t.Setenv("GODEBUG", "x509usepolicies=0") template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}}, } var expectPolicyIdentifiers = []asn1.ObjectIdentifier{ []int{1, 2, 3}, } var expectPolicies = []OID{ mustNewOIDFromInts([]uint64{1, 2, 3}), } certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } cert, err := ParseCertificate(certDER) if err != nil { t.Fatalf("ParseCertificate() unexpected error: %v", err) } if !slices.EqualFunc(cert.PolicyIdentifiers, expectPolicyIdentifiers, slices.Equal) { t.Errorf("cert.PolicyIdentifiers = %v, want: %v", cert.PolicyIdentifiers, expectPolicyIdentifiers) } if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) { t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies) } } func TestCertificatePolicies(t *testing.T) { if x509usepolicies.Value() == "0" { t.Skip("test relies on default x509usepolicies GODEBUG") } template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}}, Policies: []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})}, } expectPolicies := []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})} certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } cert, err := ParseCertificate(certDER) if err != nil { t.Fatalf("ParseCertificate() unexpected error: %v", err) } if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) { t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies) } t.Setenv("GODEBUG", "x509usepolicies=1") expectPolicies = []OID{mustNewOIDFromInts([]uint64{1, 2, math.MaxUint32 + 1})} certDER, err = CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } cert, err = ParseCertificate(certDER) if err != nil { t.Fatalf("ParseCertificate() unexpected error: %v", err) } if !slices.EqualFunc(cert.Policies, expectPolicies, OID.Equal) { t.Errorf("cert.Policies = %v, want: %v", cert.Policies, expectPolicies) } } func TestGob(t *testing.T) { // Test that gob does not reject Certificate. // See go.dev/issue/65633. cert := new(Certificate) err := gob.NewEncoder(io.Discard).Encode(cert) if err != nil { t.Fatal(err) } } func TestRejectCriticalAKI(t *testing.T) { template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), ExtraExtensions: []pkix.Extension{ { Id: asn1.ObjectIdentifier{2, 5, 29, 35}, Critical: true, Value: []byte{1, 2, 3}, }, }, } certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } expectedErr := "x509: authority key identifier incorrectly marked critical" _, err = ParseCertificate(certDER) if err == nil || err.Error() != expectedErr { t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr) } } func TestRejectCriticalAIA(t *testing.T) { template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), ExtraExtensions: []pkix.Extension{ { Id: asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 1}, Critical: true, Value: []byte{1, 2, 3}, }, }, } certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } expectedErr := "x509: authority info access incorrectly marked critical" _, err = ParseCertificate(certDER) if err == nil || err.Error() != expectedErr { t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr) } } func TestRejectCriticalSKI(t *testing.T) { template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), ExtraExtensions: []pkix.Extension{ { Id: asn1.ObjectIdentifier{2, 5, 29, 14}, Critical: true, Value: []byte{1, 2, 3}, }, }, } certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } expectedErr := "x509: subject key identifier incorrectly marked critical" _, err = ParseCertificate(certDER) if err == nil || err.Error() != expectedErr { t.Fatalf("ParseCertificate() unexpected error: %v, want: %s", err, expectedErr) } } type messageSigner struct{} func (ms *messageSigner) Public() crypto.PublicKey { return rsaPrivateKey.Public() } func (ms *messageSigner) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) { return nil, errors.New("unimplemented") } func (ms *messageSigner) SignMessage(rand io.Reader, msg []byte, opts crypto.SignerOpts) (signature []byte, err error) { if _, ok := opts.(*rsa.PSSOptions); ok { return nil, errors.New("PSSOptions passed instead of hash") } h := opts.HashFunc().New() h.Write(msg) tbs := h.Sum(nil) return rsa.SignPKCS1v15(rand, rsaPrivateKey, opts.HashFunc(), tbs) } func TestMessageSigner(t *testing.T) { template := Certificate{ SignatureAlgorithm: SHA256WithRSA, SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Cert"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: true, } certDER, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), &messageSigner{}) if err != nil { t.Fatalf("CreateCertificate failed: %s", err) } cert, err := ParseCertificate(certDER) if err != nil { t.Fatalf("ParseCertificate failed: %s", err) } if err := cert.CheckSignatureFrom(cert); err != nil { t.Fatalf("CheckSignatureFrom failed: %s", err) } } func TestCreateCertificateNegativeMaxPathLength(t *testing.T) { template := Certificate{ SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "TEST"}, NotBefore: time.Unix(1000, 0), NotAfter: time.Unix(100000, 0), BasicConstraintsValid: true, IsCA: true, // CreateCertificate treats -1 in the same way as: MaxPathLen == 0 && MaxPathLenZero == false. MaxPathLen: -1, } _, err := CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("CreateCertificate() unexpected error: %v", err) } template.MaxPathLen = -2 _, err = CreateCertificate(rand.Reader, &template, &template, rsaPrivateKey.Public(), rsaPrivateKey) if err == nil || err.Error() != "x509: invalid MaxPathLen, must be greater or equal to -1" { t.Fatalf(`CreateCertificate() = %v; want = "x509: invalid MaxPathLen, must be greater or equal to -1"`, err) } } func TestEKUOIDS(t *testing.T) { for _, eku := range extKeyUsageOIDs { oid := eku.extKeyUsage.OID() if !oid.EqualASN1OID(eku.oid) { t.Errorf("extKeyUsage %v: expected OID %v, got %v", eku.extKeyUsage, eku.oid, oid) } } } func TestMLDSA(t *testing.T) { cryptotest.MustMinimumFIPS140ModuleVersion(t, "v1.26.0") t.Run("ML-DSA-44", func(t *testing.T) { testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA44, rfc9881ExamplePublicKeyMLDSA44, rfc9881ExampleCertificateMLDSA44) }) t.Run("ML-DSA-65", func(t *testing.T) { testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA65, rfc9881ExamplePublicKeyMLDSA65, rfc9881ExampleCertificateMLDSA65) }) t.Run("ML-DSA-87", func(t *testing.T) { testMLDSA(t, rfc9881ExamplePrivateKeyMLDSA87, rfc9881ExamplePublicKeyMLDSA87, rfc9881ExampleCertificateMLDSA87) }) key, err := ParsePKCS8PrivateKey(pemDecode(t, rfc9881ExamplePrivateKeyMLDSA44Expanded)) if key != nil || err == nil || !strings.Contains(err.Error(), "supported") { t.Fatalf("ParsePKCS8PrivateKey should fail when parsing expanded ML-DSA-44 private key: got key %v, err %v", key, err) } key, err = ParsePKCS8PrivateKey(pemDecode(t, rfc9881ExamplePrivateKeyMLDSA44Both)) if key != nil || err == nil || !strings.Contains(err.Error(), "openssl") { t.Fatalf("ParsePKCS8PrivateKey should fail when parsing ML-DSA-44 private key with both seed and expanded: got key %v, err %v", key, err) } } func testMLDSA(t *testing.T, privateKeyPEM, publicKeyPEM, certPEM string) { privKey, err := ParsePKCS8PrivateKey(pemDecode(t, privateKeyPEM)) if err != nil { t.Fatalf("ParsePKCS8PrivateKey failed: %s", err) } if _, ok := privKey.(*mldsa.PrivateKey); !ok { t.Fatalf("ParsePKCS8PrivateKey returned wrong type: got %T, want *mldsa.PrivateKey", privKey) } if hex.EncodeToString(privKey.(*mldsa.PrivateKey).Bytes()) != "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f" { t.Fatal("ParsePKCS8PrivateKey returned wrong private key value") } got, err := MarshalPKCS8PrivateKey(privKey) if err != nil { t.Fatalf("MarshalPKCS8PrivateKey failed: %s", err) } if !bytes.Equal(got, pemDecode(t, privateKeyPEM)) { t.Fatal("MarshalPKCS8PrivateKey did not return original DER bytes") } pubKey, err := ParsePKIXPublicKey(pemDecode(t, publicKeyPEM)) if err != nil { t.Fatalf("ParsePKIXPublicKey failed: %s", err) } if _, ok := pubKey.(*mldsa.PublicKey); !ok { t.Fatalf("ParsePKIXPublicKey returned wrong type: got %T, want *mldsa.PublicKey", pubKey) } if !pubKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) { t.Fatal("ParsePKIXPublicKey returned public key that does not match private key") } got, err = MarshalPKIXPublicKey(pubKey) if err != nil { t.Fatalf("MarshalPKIXPublicKey failed: %s", err) } if !bytes.Equal(got, pemDecode(t, publicKeyPEM)) { t.Fatal("MarshalPKIXPublicKey did not return original DER bytes") } cert, err := ParseCertificate(pemDecode(t, certPEM)) if err != nil { t.Fatalf("ParseCertificate failed: %s", err) } if !cert.PublicKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) { t.Fatal("ParseCertificate returned certificate with public key that does not match private key") } if cert.PublicKeyAlgorithm != MLDSA { t.Fatalf("ParseCertificate returned certificate with wrong public key algorithm: got %v, want MLDSA", cert.PublicKeyAlgorithm) } switch pubKey.(*mldsa.PublicKey).Parameters() { case mldsa.MLDSA44(): if cert.SignatureAlgorithm != MLDSA44 { t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA44", cert.SignatureAlgorithm) } case mldsa.MLDSA65(): if cert.SignatureAlgorithm != MLDSA65 { t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA65", cert.SignatureAlgorithm) } case mldsa.MLDSA87(): if cert.SignatureAlgorithm != MLDSA87 { t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want MLDSA87", cert.SignatureAlgorithm) } default: t.Fatal("ParseCertificate returned certificate with unknown MLDSA parameters") } if err := cert.CheckSignatureFrom(cert); err != nil { t.Fatalf("CheckSignatureFrom failed: %s", err) } got, err = CreateCertificate(rand.Reader, cert, cert, privKey.(*mldsa.PrivateKey).PublicKey(), privKey) if err != nil { t.Fatalf("CreateCertificate failed: %s", err) } cert2, err := ParseCertificate(got) if err != nil { t.Fatalf("ParseCertificate failed: %s", err) } if !cert2.PublicKey.(*mldsa.PublicKey).Equal(privKey.(*mldsa.PrivateKey).PublicKey()) { t.Fatal("ParseCertificate returned certificate with public key that does not match private key") } if cert2.SignatureAlgorithm != cert.SignatureAlgorithm { t.Fatalf("ParseCertificate returned certificate with wrong signature algorithm: got %v, want %v", cert2.SignatureAlgorithm, cert.SignatureAlgorithm) } if err := cert2.CheckSignatureFrom(cert2); err != nil { t.Fatalf("CheckSignatureFrom failed: %s", err) } msg := []byte("test message") sig, err := privKey.(*mldsa.PrivateKey).Sign(rand.Reader, msg, crypto.Hash(0)) if err != nil { t.Fatalf("Sign failed: %s", err) } certParams := cert.PublicKey.(*mldsa.PublicKey).Parameters() for _, tc := range []struct { algo SignatureAlgorithm params mldsa.Parameters name string }{ {MLDSA44, mldsa.MLDSA44(), "ML-DSA-44"}, {MLDSA65, mldsa.MLDSA65(), "ML-DSA-65"}, {MLDSA87, mldsa.MLDSA87(), "ML-DSA-87"}, } { err := cert.CheckSignature(tc.algo, msg, sig) if tc.params == certParams { if err != nil { t.Errorf("CheckSignature(%v): got %v, want nil", tc.algo, err) } } else { if err == nil || !strings.Contains(err.Error(), tc.name) { t.Errorf("CheckSignature(%v) on %v key: got %v, want parameter mismatch error mentioning %v", tc.algo, certParams, err, tc.name) } } } } func pemDecode(t *testing.T, pemStr string) []byte { b, _ := pem.Decode([]byte(pemStr)) if b == nil { t.Fatalf("couldn't decode PEM string") } return b.Bytes } var rfc9881ExamplePrivateKeyMLDSA44 = testingKey(` -----BEGIN TESTING KEY----- MDQCAQAwCwYJYIZIAWUDBAMRBCKAIAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZ GhscHR4f -----END TESTING KEY----- `) var rfc9881ExamplePrivateKeyMLDSA44Expanded = testingKey(` -----BEGIN TESTING KEY----- MIIKGAIBADALBglghkgBZQMEAxEEggoEBIIKANeytHJUquDbReeTDUqY0sl9jxOX 0Xidr6FwJLMW6b7JOc4Pf3f421ZE3No2a/5HNL2V9DX/mmE6pUqkHCxpTAQymgex +rtI9SownxGhiY+EjiMi/+Yj7IENs77jNoWFSogmnaMg1RIL/P6JoY4w9xFNg6pA SmRrbJlziYYNElIu4ABuI4SBkYZhmyYNEYZk1KYoIhhEgkAomBRhSKZhTEJIoZII wjgpUSRICKElwggxCMRxIBQJFINsGKeAhBBuycBwIrVkCLBhDAcEmBJEUYhpWQBG IpMgQQYuQrZMARZJFChMQahRgEYKURZRWgggAiJE3JhJ0TJR4TBl08CFkqhREqFk ADkiCUZiHMcM2Qht0AYmUkCFgEQwkQYsUMgJJMWEGpZtSpgsmQZtpEQyIKdkWjJu EbVwIJJhJBOOBIUsCkhyyKBR0wgqmSCAWCQgJAdOWRSIEKRkYMBt4LKNGxkJIDQi wCRBCUNxCiEgYaIBUiJSG4CAmjQAE5NN0zIpIhcKmJJpGhRRICchnMAgYqKBSBhp GoVNg0RpWyBBAxJCyxhGAakNDAIxg7AhWiJKyJIF2ZBpBDBqSwZK0rIBHEBAgUIy UjJyVKZAWhgQDDISksKAUhJiXIIoC7RsA0KNUxAMFAEO4TZSiIQkkQIKY0YmIAYp EcIo0CBIArNsojYJWoZIy7Rhi0ZixECCGokJEAJNJLJFIBIlJMkFiCiMycBNWUgi CiduwTRkTJBgW0RQgoZJQ4gEQ7KMYDCAoogthKRtjKYp0MaEQgZGiYhRAKmNAUmN 5DgNpAaN05RxQrJsGoRhG6MoQrQoCKBxGsUx4KBMATdlJChiFCiQCRBh2UAiGzNg CQKS0CSBIAQISRhEoyItXIhEFJgIpEZhAZVkCzkKDJRQykBq0rIgwDgBgjCOE7kI kYCEFIgpwBiREjUNoCQi4gQG2cKFBCgSHMmJGAJy0kApwggS2AYqmZRxm7hoI4Qp GiKJFEUR3IJEUJZFDESEwLIEmqYFQ4YsRDJuiEQhIKhMmjBw47gtYyaIAyVJA0OM SKgJyhRyUzROEkMIG6cEWTAi2ZSA4jQigUISnDAqlDQmYQRFJCYoE0YJSjJtESgJ GLglYigRE0ENQbIRkIRMixISosaIycAwIgYG0hiOhIYwkERSEogx2SBxE8UoQwYO AzBgzKaEWCZSTIgBHvclYshf+kOs+kkhfysXLXu8FGIObZgKcaq73wxF6aIG7LFC P+4V3swXYBMAFJ2SI81ubG4fqOQfx8ZJOKtokF/T3NpQ2HCC59DXHRvJsrhMhVI8 qP5srSlK34O+FbEI/3IdDMh7w906dZAYSw6EVmOpH8nhw8U6YdhnQgsE8JI1V1O8 ZaBjaP1BKV/QmSQTLG+R9nlkwUJnSnJcNDkUxM7PWMB0vK9FWMl795EeB6ptCTjy 7iuzwajFldY16ENC/eoB3CSyEa0vwoHPd+WREMerxUvwyG1IC5vidkcdydYDzumM /as+n8+3A3k1YFSepEUPp7M/uRacRLTSX7nEV/SXkc09oD6slglYE8EFEyzNpOY+ SSKM0j2KHzeFbxQtk7kNsJ+Cr4kljGOquAR6gMA2yTV+ogRvjcY1TwxSlfNCu0F9 PP6wsf0zYiwp4Uy72S4TY8ZevUUEt1EjKblnDjLhssZ6VOfxpV+Ln56gToyjpwXm KjxeY3N0r7eutt3qYSzeKPAaIC16pONHItJ90/m4mJTQGf1dTXEZ7+NyO7oQTLi7 CYHgdN46/iANqq6tgmzEXyRNv0Ma+rNO+994JHTS/VcRj2RiFJNO2Zy6OwA+jWej g29vGfxBkQzlFj7jrpnrhNUU63YeY2hOpW+XkdLdSqxuYWi5SMgX91oiKssOjNwD zEr+j2cVfho2O3+u/58XK5iRNnfFod0IXp7kwiBSwa9YGTEWZz3NO/xfNLhV3MbH eIVknp5x9D1K6g9Lcsp+2gV4uhPTGmWNLQYKmmb/ae0b55l6L7HScj04+b+r4Y+O ezzakG5Om16ULI6uspYHDr/TZJR6lAzJeL7Wazd0nm1dzXvoxJREDiuEzs/vuYwL 7fs8QeM1nSzXGX++cgxIqmxrZGXB7mPjVpwq3HREkTcLf3gm/gt3odGdZBAdAyuR gQa0LS73N0flYB/kulDyPt5SHwMagX0VKUpDci6DeHhLbbDPG6norpEdkgG5zpzD AZxvXCfLmNomFEtkIlp8kysw92Hnii1Zodi4PsY0Si9t1H52VwbQC/SnmmqSbDup HYEsjyx5erF5Zwnl0WhWd4KTUp8ChtAVw7U5lhlkKjM+nlk9bj9TU5lCCOnmozKF HX9lJSKpKLkX4n4tbUITff4uv6b7HGeybAJUUoaF9+vb4xWmjqotp2noqfQtPmAA fHEzCSaywAEtg+rU5P0e2HLM0ZciAdKwJ/NUWsLTDNeLwddA/sy8b8KgRGxuMOrF H1ppCYqi1EfyCFtOTkuSzMJpIdLeR4UYzQkM4meuotJ62lf9iLSXbYn7hDzcz0mn bKJnnmgBv6f7AxiW+1BilwS5kjk2u13ThTERIcrfsRmV5ZtzA0z2ftA6uBOGdkjQ JYKAh+lJqa/Ra5XXLZmx7coleqwTL/t6Bwmu1anA/wX7Dyu/KECe7XtfWAG+lkzt AZ4ct4UdOFHxApBnThn/sAizAcSs9kGiuxQhbh1pyr9Ste8idJaw8weZqFXRF/rT dEpvozUD6nmLUt3X7lQmYJ2/zT8ME7Fk1sBR9+1KEZcZpxLjiNMoQCCB/xNUtVTS wjev7TsVHEuo6fS964SZowZuJrvGnorwid7HFzHR3FKeqxfvc3RzTA/kdUlMg4Nr 3TSgO5vImRRxYGG/uY7G5hw+1EOO3K8lJDxkcIa56nAYsNmooLAM7LAKveJJjWnC M2EBp3LL5PVxUj9RvQWILN81i4ScwUCqH68iQjoShRzg4z/UiXWklZ+lxf5BjJOQ gZGrbnQbd7/gLL1pjueVxGbWFWGeZEE4LG6sAYNO6atzzqgLviNceNqRvXm2+C+J l4XWhwDTk+Z1wiJNa3oa0hMgSVZ5ra7XAWe1CGZxOlMQnbe299gTBOzf2Dsxmx7y SDBrRa0p593Mhj2sVgSLXWnqF1AR92FMAKhqhjzeGHKokyh4uax+GsW9pJl7cgZP DNdfTIFOA03hGsuQE89+qSa05+qs4HDHuiGI760uQx4SI9Rd0FxNhAPC5FzuZBPs vnUn6HPkVcTmEKYYOarMC9VtJIPnjymLZqR46y9VjLr8qGvoR7rrAsWyFsjNiP6k 3ySbCeZwogcDq6wksKkavEpWRmAUQroQvs/TCZOIAFHQf1agWpN556jmvv7j8i+q EGOY93BgBuQum+HvidJcJy8RqVCVxYfXE3MihN6dvTxyF7BoniHY6w/2lmg= -----END TESTING KEY----- `) var rfc9881ExamplePrivateKeyMLDSA44Both = testingKey(` -----BEGIN TESTING KEY----- MIIKPgIBADALBglghkgBZQMEAxEEggoqMIIKJgQgAAECAwQFBgcICQoLDA0ODxAR EhMUFRYXGBkaGxwdHh8EggoA17K0clSq4NtF55MNSpjSyX2PE5fReJ2voXAksxbp vsk5zg9/d/jbVkTc2jZr/kc0vZX0Nf+aYTqlSqQcLGlMBDKaB7H6u0j1KjCfEaGJ j4SOIyL/5iPsgQ2zvuM2hYVKiCadoyDVEgv8/omhjjD3EU2DqkBKZGtsmXOJhg0S Ui7gAG4jhIGRhmGbJg0RhmTUpigiGESCQCiYFGFIpmFMQkihkgjCOClRJEgIoSXC CDEIxHEgFAkUg2wYp4CEEG7JwHAitWQIsGEMBwSYEkRRiGlZAEYikyBBBi5CtkwB FkkUKExBqFGARgpRFlFaCCACIkTcmEnRMlHhMGXTwIWSqFESoWQAOSIJRmIcxwzZ CG3QBiZSQIWARDCRBixQyAkkxYQalm1KmCyZBm2kRDIgp2RaMm4RtXAgkmEkE44E 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ipv4MappedSANCert = "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" const ipv4MappedConstraintCert = "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" func TestIPv4MappedIPsParse(t *testing.T) { for _, tc := range []struct { name string der string }{ { name: "SAN", der: ipv4MappedSANCert, }, { name: "constraint", der: ipv4MappedConstraintCert, }, } { t.Run(tc.name, func(t *testing.T) { der, err := hex.DecodeString(tc.der) if err != nil { t.Fatalf("hex.DecodeString() unexpected error: %v", err) } expectedErrSuffix := "IPv4-mapped IPv6 address" _, err = ParseCertificate(der) if err == nil { t.Fatal("expected error when parsing certificate containing IPv4-mapped IPv6 address") } else if !strings.Contains(err.Error(), expectedErrSuffix) { t.Fatalf("unexpected error: %v, want suffix: %s", err, expectedErrSuffix) } }) } } func TestIPv4MappedIPsSANCreate(t *testing.T) { tmpl := Certificate{ SerialNumber: big.NewInt(1), NotBefore: time.Now().Add(-24 * time.Hour), NotAfter: time.Now().Add(24 * time.Hour), DNSNames: []string{"localhost"}, IPAddresses: []net.IP{net.ParseIP("::ffff:192.0.2.1")}, } der, err := CreateCertificate(rand.Reader, &tmpl, &tmpl, rsaPrivateKey.Public(), rsaPrivateKey) if err != nil { t.Fatalf("unexpected error creating certificate: %v", err) } cert, err := ParseCertificate(der) if err != nil { t.Fatalf("unexpected error parsing certificate: %v", err) } if len(cert.IPAddresses) != 1 { t.Fatalf("unexpected number of IP addresses in parsed certificate, got %d, want 1", len(cert.IPAddresses)) } if len(cert.IPAddresses[0]) != net.IPv4len { t.Fatalf("unexpected IP address length in parsed certificate, got %d, want %d", len(cert.IPAddresses[0]), net.IPv4len) } } func TestIPv4MappedIPsConstraintCreate(t *testing.T) { _, mappedNetwork, _ := net.ParseCIDR("::ffff:192.0.2.1/128") tmpl := Certificate{ SerialNumber: big.NewInt(1), NotBefore: time.Now().Add(-24 * time.Hour), NotAfter: time.Now().Add(24 * time.Hour), DNSNames: []string{"localhost"}, PermittedIPRanges: []*net.IPNet{mappedNetwork}, } _, err := CreateCertificate(rand.Reader, &tmpl, &tmpl, rsaPrivateKey.Public(), rsaPrivateKey) if err == nil { t.Fatalf("unexpected success creating certificate with IPv4-mapped IPv6 address constraint") } }