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x509_test.go
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x509_test.go
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// 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/ecdsa"
"crypto/ed25519"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
_ "crypto/sha256"
_ "crypto/sha512"
"crypto/x509/pkix"
"encoding/asn1"
"encoding/base64"
"encoding/hex"
"encoding/pem"
"fmt"
"internal/testenv"
"io"
"math/big"
"net"
"net/url"
"os/exec"
"reflect"
"runtime"
"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")
}
}
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 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")
}
})
}
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-----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-----END RSA TESTING KEY-----
`)
// pemEd25519Key is the example from RFC 8410, Secrion 4.
var pemEd25519Key = `
-----BEGIN PUBLIC KEY-----
MCowBQYDK2VwAyEAGb9ECWmEzf6FQbrBZ9w7lshQhqowtrbLDFw4rXAxZuE=
-----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("got:%+v want:%+v", priv, priv2)
}
}
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)
}
tests := []struct {
name string
pub, priv any
checkSig bool
sigAlgo SignatureAlgorithm
}{
{"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},
}
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 is negative to ensure that negative
// values are parsed. This is due to the prevalence of
// buggy code that produces certificates with negative
// serial numbers.
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")},
PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}},
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.PolicyIdentifiers) != 1 || !cert.PolicyIdentifiers[0].Equal(template.PolicyIdentifiers[0]) {
t.Errorf("%s: failed to parse policy identifiers: got:%#v want:%#v", test.name, cert.PolicyIdentifiers, template.PolicyIdentifiers)
}
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 addreses: %#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 addreses: %#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 !reflect.DeepEqual(cert.ExtKeyUsage, testExtKeyUsage) {
t.Errorf("%s: extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.ExtKeyUsage, testExtKeyUsage)
}
if !reflect.DeepEqual(cert.UnknownExtKeyUsage, testUnknownExtKeyUsage) {
t.Errorf("%s: unknown extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.UnknownExtKeyUsage, testUnknownExtKeyUsage)
}
if !reflect.DeepEqual(cert.OCSPServer, template.OCSPServer) {
t.Errorf("%s: OCSP servers differ from template. Got %v, want %v", test.name, cert.OCSPServer, template.OCSPServer)
}
if !reflect.DeepEqual(cert.IssuingCertificateURL, template.IssuingCertificateURL) {
t.Errorf("%s: Issuing certificate URLs differ from template. Got %v, want %v", test.name, cert.IssuingCertificateURL, template.IssuingCertificateURL)
}
if !reflect.DeepEqual(cert.DNSNames, template.DNSNames) {
t.Errorf("%s: SAN DNS names differ from template. Got %v, want %v", test.name, cert.DNSNames, template.DNSNames)
}
if !reflect.DeepEqual(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 !reflect.DeepEqual(cert.IPAddresses, template.IPAddresses) {
t.Errorf("%s: SAN IPs differ from template. Got %v, want %v", test.name, cert.IPAddresses, template.IPAddresses)
}
if !reflect.DeepEqual(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-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA256 & secp256r1
var ecdsaSHA256p256CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA256 & secp384r1
var ecdsaSHA256p384CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA384 & secp521r1
var ecdsaSHA384p521CertPem = `
-----BEGIN CERTIFICATE-----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-----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-----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-----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