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-rw-r--r--src/pkg/crypto/x509/Makefile13
-rw-r--r--src/pkg/crypto/x509/cert_pool.go106
-rw-r--r--src/pkg/crypto/x509/pkix/Makefile11
-rw-r--r--src/pkg/crypto/x509/pkix/pkix.go167
-rw-r--r--src/pkg/crypto/x509/verify.go244
-rw-r--r--src/pkg/crypto/x509/verify_test.go391
-rw-r--r--src/pkg/crypto/x509/x509.go1073
-rw-r--r--src/pkg/crypto/x509/x509_test.go431
8 files changed, 2436 insertions, 0 deletions
diff --git a/src/pkg/crypto/x509/Makefile b/src/pkg/crypto/x509/Makefile
new file mode 100644
index 000000000..14ffd095f
--- /dev/null
+++ b/src/pkg/crypto/x509/Makefile
@@ -0,0 +1,13 @@
+# 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.
+
+include ../../../Make.inc
+
+TARG=crypto/x509
+GOFILES=\
+ cert_pool.go\
+ verify.go\
+ x509.go\
+
+include ../../../Make.pkg
diff --git a/src/pkg/crypto/x509/cert_pool.go b/src/pkg/crypto/x509/cert_pool.go
new file mode 100644
index 000000000..16cd92efc
--- /dev/null
+++ b/src/pkg/crypto/x509/cert_pool.go
@@ -0,0 +1,106 @@
+// Copyright 2011 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 (
+ "crypto/x509/pkix"
+ "encoding/pem"
+ "strings"
+)
+
+// Roots is a set of certificates.
+type CertPool struct {
+ bySubjectKeyId map[string][]int
+ byName map[string][]int
+ certs []*Certificate
+}
+
+// NewCertPool returns a new, empty CertPool.
+func NewCertPool() *CertPool {
+ return &CertPool{
+ make(map[string][]int),
+ make(map[string][]int),
+ nil,
+ }
+}
+
+func nameToKey(name *pkix.Name) string {
+ return strings.Join(name.Country, ",") + "/" + strings.Join(name.Organization, ",") + "/" + strings.Join(name.OrganizationalUnit, ",") + "/" + name.CommonName
+}
+
+// findVerifiedParents attempts to find certificates in s which have signed the
+// given certificate. If no such certificate can be found or the signature
+// doesn't match, it returns nil.
+func (s *CertPool) findVerifiedParents(cert *Certificate) (parents []int) {
+ var candidates []int
+
+ if len(cert.AuthorityKeyId) > 0 {
+ candidates = s.bySubjectKeyId[string(cert.AuthorityKeyId)]
+ }
+ if len(candidates) == 0 {
+ candidates = s.byName[nameToKey(&cert.Issuer)]
+ }
+
+ for _, c := range candidates {
+ if cert.CheckSignatureFrom(s.certs[c]) == nil {
+ parents = append(parents, c)
+ }
+ }
+
+ return
+}
+
+// AddCert adds a certificate to a pool.
+func (s *CertPool) AddCert(cert *Certificate) {
+ if cert == nil {
+ panic("adding nil Certificate to CertPool")
+ }
+
+ // Check that the certificate isn't being added twice.
+ for _, c := range s.certs {
+ if c.Equal(cert) {
+ return
+ }
+ }
+
+ n := len(s.certs)
+ s.certs = append(s.certs, cert)
+
+ if len(cert.SubjectKeyId) > 0 {
+ keyId := string(cert.SubjectKeyId)
+ s.bySubjectKeyId[keyId] = append(s.bySubjectKeyId[keyId], n)
+ }
+ name := nameToKey(&cert.Subject)
+ s.byName[name] = append(s.byName[name], n)
+}
+
+// AppendCertsFromPEM attempts to parse a series of PEM encoded root
+// certificates. It appends any certificates found to s and returns true if any
+// certificates were successfully parsed.
+//
+// On many Linux systems, /etc/ssl/cert.pem will contains the system wide set
+// of root CAs in a format suitable for this function.
+func (s *CertPool) AppendCertsFromPEM(pemCerts []byte) (ok bool) {
+ for len(pemCerts) > 0 {
+ var block *pem.Block
+ block, pemCerts = pem.Decode(pemCerts)
+ if block == nil {
+ break
+ }
+ if block.Type != "CERTIFICATE" || len(block.Headers) != 0 {
+ continue
+ }
+
+ cert, err := ParseCertificate(block.Bytes)
+ if err != nil {
+ continue
+ }
+
+ s.AddCert(cert)
+ ok = true
+ }
+
+ return
+}
diff --git a/src/pkg/crypto/x509/pkix/Makefile b/src/pkg/crypto/x509/pkix/Makefile
new file mode 100644
index 000000000..e29b74c01
--- /dev/null
+++ b/src/pkg/crypto/x509/pkix/Makefile
@@ -0,0 +1,11 @@
+# Copyright 2011 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.
+
+include ../../../../Make.inc
+
+TARG=crypto/x509/pkix
+GOFILES=\
+ pkix.go\
+
+include ../../../../Make.pkg
diff --git a/src/pkg/crypto/x509/pkix/pkix.go b/src/pkg/crypto/x509/pkix/pkix.go
new file mode 100644
index 000000000..266fd557a
--- /dev/null
+++ b/src/pkg/crypto/x509/pkix/pkix.go
@@ -0,0 +1,167 @@
+// Copyright 2011 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 pkix contains shared, low level structures used for ASN.1 parsing
+// and serialization of X.509 certificates, CRL and OCSP.
+package pkix
+
+import (
+ "asn1"
+ "big"
+ "time"
+)
+
+// AlgorithmIdentifier represents the ASN.1 structure of the same name. See RFC
+// 5280, section 4.1.1.2.
+type AlgorithmIdentifier struct {
+ Algorithm asn1.ObjectIdentifier
+ Parameters asn1.RawValue `asn1:"optional"`
+}
+
+type RDNSequence []RelativeDistinguishedNameSET
+
+type RelativeDistinguishedNameSET []AttributeTypeAndValue
+
+type AttributeTypeAndValue struct {
+ Type asn1.ObjectIdentifier
+ Value interface{}
+}
+
+// Extension represents the ASN.1 structure of the same name. See RFC
+// 5280, section 4.2.
+type Extension struct {
+ Id asn1.ObjectIdentifier
+ Critical bool `asn1:"optional"`
+ Value []byte
+}
+
+// Name represents an X.509 distinguished name. This only includes the common
+// elements of a DN. Additional elements in the name are ignored.
+type Name struct {
+ Country, Organization, OrganizationalUnit []string
+ Locality, Province []string
+ StreetAddress, PostalCode []string
+ SerialNumber, CommonName string
+}
+
+func (n *Name) FillFromRDNSequence(rdns *RDNSequence) {
+ for _, rdn := range *rdns {
+ if len(rdn) == 0 {
+ continue
+ }
+ atv := rdn[0]
+ value, ok := atv.Value.(string)
+ if !ok {
+ continue
+ }
+
+ t := atv.Type
+ if len(t) == 4 && t[0] == 2 && t[1] == 5 && t[2] == 4 {
+ switch t[3] {
+ case 3:
+ n.CommonName = value
+ case 5:
+ n.SerialNumber = value
+ case 6:
+ n.Country = append(n.Country, value)
+ case 7:
+ n.Locality = append(n.Locality, value)
+ case 8:
+ n.Province = append(n.Province, value)
+ case 9:
+ n.StreetAddress = append(n.StreetAddress, value)
+ case 10:
+ n.Organization = append(n.Organization, value)
+ case 11:
+ n.OrganizationalUnit = append(n.OrganizationalUnit, value)
+ case 17:
+ n.PostalCode = append(n.PostalCode, value)
+ }
+ }
+ }
+}
+
+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}
+ oidSerialNumber = []int{2, 5, 4, 5}
+ oidLocality = []int{2, 5, 4, 7}
+ oidProvince = []int{2, 5, 4, 8}
+ oidStreetAddress = []int{2, 5, 4, 9}
+ oidPostalCode = []int{2, 5, 4, 17}
+)
+
+// appendRDNs appends a relativeDistinguishedNameSET to the given RDNSequence
+// and returns the new value. The relativeDistinguishedNameSET contains an
+// attributeTypeAndValue for each of the given values. See RFC 5280, A.1, and
+// search for AttributeTypeAndValue.
+func appendRDNs(in RDNSequence, values []string, oid asn1.ObjectIdentifier) RDNSequence {
+ if len(values) == 0 {
+ return in
+ }
+
+ s := make([]AttributeTypeAndValue, len(values))
+ for i, value := range values {
+ s[i].Type = oid
+ s[i].Value = value
+ }
+
+ return append(in, s)
+}
+
+func (n Name) ToRDNSequence() (ret RDNSequence) {
+ ret = appendRDNs(ret, n.Country, oidCountry)
+ ret = appendRDNs(ret, n.Organization, oidOrganization)
+ ret = appendRDNs(ret, n.OrganizationalUnit, oidOrganizationalUnit)
+ ret = appendRDNs(ret, n.Locality, oidLocality)
+ ret = appendRDNs(ret, n.Province, oidProvince)
+ ret = appendRDNs(ret, n.StreetAddress, oidStreetAddress)
+ ret = appendRDNs(ret, n.PostalCode, oidPostalCode)
+ if len(n.CommonName) > 0 {
+ ret = appendRDNs(ret, []string{n.CommonName}, oidCommonName)
+ }
+ if len(n.SerialNumber) > 0 {
+ ret = appendRDNs(ret, []string{n.SerialNumber}, oidSerialNumber)
+ }
+
+ return ret
+}
+
+// CertificateList represents the ASN.1 structure of the same name. See RFC
+// 5280, section 5.1. Use Certificate.CheckCRLSignature to verify the
+// signature.
+type CertificateList struct {
+ TBSCertList TBSCertificateList
+ SignatureAlgorithm AlgorithmIdentifier
+ SignatureValue asn1.BitString
+}
+
+// HasExpired returns true iff currentTimeSeconds is past the expiry time of
+// certList.
+func (certList *CertificateList) HasExpired(currentTimeSeconds int64) bool {
+ return certList.TBSCertList.NextUpdate.Seconds() <= currentTimeSeconds
+}
+
+// TBSCertificateList represents the ASN.1 structure of the same name. See RFC
+// 5280, section 5.1.
+type TBSCertificateList struct {
+ Raw asn1.RawContent
+ Version int `asn1:"optional,default:2"`
+ Signature AlgorithmIdentifier
+ Issuer RDNSequence
+ ThisUpdate *time.Time
+ NextUpdate *time.Time
+ RevokedCertificates []RevokedCertificate `asn1:"optional"`
+ Extensions []Extension `asn1:"tag:0,optional,explicit"`
+}
+
+// RevokedCertificate represents the ASN.1 structure of the same name. See RFC
+// 5280, section 5.1.
+type RevokedCertificate struct {
+ SerialNumber *big.Int
+ RevocationTime *time.Time
+ Extensions []Extension `asn1:"optional"`
+}
diff --git a/src/pkg/crypto/x509/verify.go b/src/pkg/crypto/x509/verify.go
new file mode 100644
index 000000000..4c0fecccb
--- /dev/null
+++ b/src/pkg/crypto/x509/verify.go
@@ -0,0 +1,244 @@
+// Copyright 2011 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 (
+ "os"
+ "strings"
+ "time"
+)
+
+type InvalidReason int
+
+const (
+ // NotAuthorizedToSign results when a certificate is signed by another
+ // which isn't marked as a CA certificate.
+ NotAuthorizedToSign InvalidReason = iota
+ // Expired results when a certificate has expired, based on the time
+ // given in the VerifyOptions.
+ Expired
+ // CANotAuthorizedForThisName results when an intermediate or root
+ // certificate has a name constraint which doesn't include the name
+ // being checked.
+ CANotAuthorizedForThisName
+)
+
+// CertificateInvalidError results when an odd error occurs. Users of this
+// library probably want to handle all these errors uniformly.
+type CertificateInvalidError struct {
+ Cert *Certificate
+ Reason InvalidReason
+}
+
+func (e CertificateInvalidError) String() string {
+ switch e.Reason {
+ case NotAuthorizedToSign:
+ return "x509: certificate is not authorized to sign other other certificates"
+ case Expired:
+ return "x509: certificate has expired or is not yet valid"
+ case CANotAuthorizedForThisName:
+ return "x509: a root or intermediate certificate is not authorized to sign in this domain"
+ }
+ return "x509: unknown error"
+}
+
+// HostnameError results when the set of authorized names doesn't match the
+// requested name.
+type HostnameError struct {
+ Certificate *Certificate
+ Host string
+}
+
+func (h HostnameError) String() string {
+ var valid string
+ c := h.Certificate
+ if len(c.DNSNames) > 0 {
+ valid = strings.Join(c.DNSNames, ", ")
+ } else {
+ valid = c.Subject.CommonName
+ }
+ return "certificate is valid for " + valid + ", not " + h.Host
+}
+
+// UnknownAuthorityError results when the certificate issuer is unknown
+type UnknownAuthorityError struct {
+ cert *Certificate
+}
+
+func (e UnknownAuthorityError) String() string {
+ return "x509: certificate signed by unknown authority"
+}
+
+// VerifyOptions contains parameters for Certificate.Verify. It's a structure
+// because other PKIX verification APIs have ended up needing many options.
+type VerifyOptions struct {
+ DNSName string
+ Intermediates *CertPool
+ Roots *CertPool
+ CurrentTime int64 // if 0, the current system time is used.
+}
+
+const (
+ leafCertificate = iota
+ intermediateCertificate
+ rootCertificate
+)
+
+// isValid performs validity checks on the c.
+func (c *Certificate) isValid(certType int, opts *VerifyOptions) os.Error {
+ if opts.CurrentTime < c.NotBefore.Seconds() ||
+ opts.CurrentTime > c.NotAfter.Seconds() {
+ return CertificateInvalidError{c, Expired}
+ }
+
+ if len(c.PermittedDNSDomains) > 0 {
+ for _, domain := range c.PermittedDNSDomains {
+ if opts.DNSName == domain ||
+ (strings.HasSuffix(opts.DNSName, domain) &&
+ len(opts.DNSName) >= 1+len(domain) &&
+ opts.DNSName[len(opts.DNSName)-len(domain)-1] == '.') {
+ continue
+ }
+
+ return CertificateInvalidError{c, CANotAuthorizedForThisName}
+ }
+ }
+
+ // KeyUsage status flags are ignored. From Engineering Security, Peter
+ // Gutmann: A European government CA marked its signing certificates as
+ // being valid for encryption only, but no-one noticed. Another
+ // European CA marked its signature keys as not being valid for
+ // signatures. A different CA marked its own trusted root certificate
+ // as being invalid for certificate signing. Another national CA
+ // distributed a certificate to be used to encrypt data for the
+ // country’s tax authority that was marked as only being usable for
+ // digital signatures but not for encryption. Yet another CA reversed
+ // the order of the bit flags in the keyUsage due to confusion over
+ // encoding endianness, essentially setting a random keyUsage in
+ // certificates that it issued. Another CA created a self-invalidating
+ // certificate by adding a certificate policy statement stipulating
+ // that the certificate had to be used strictly as specified in the
+ // keyUsage, and a keyUsage containing a flag indicating that the RSA
+ // encryption key could only be used for Diffie-Hellman key agreement.
+
+ if certType == intermediateCertificate && (!c.BasicConstraintsValid || !c.IsCA) {
+ return CertificateInvalidError{c, NotAuthorizedToSign}
+ }
+
+ return nil
+}
+
+// Verify attempts to verify c by building one or more chains from c to a
+// certificate in opts.roots, using certificates in opts.Intermediates if
+// needed. If successful, it returns one or chains where the first element of
+// the chain is c and the last element is from opts.Roots.
+//
+// WARNING: this doesn't do any revocation checking.
+func (c *Certificate) Verify(opts VerifyOptions) (chains [][]*Certificate, err os.Error) {
+ if opts.CurrentTime == 0 {
+ opts.CurrentTime = time.Seconds()
+ }
+ err = c.isValid(leafCertificate, &opts)
+ if err != nil {
+ return
+ }
+ if len(opts.DNSName) > 0 {
+ err = c.VerifyHostname(opts.DNSName)
+ if err != nil {
+ return
+ }
+ }
+ return c.buildChains(make(map[int][][]*Certificate), []*Certificate{c}, &opts)
+}
+
+func appendToFreshChain(chain []*Certificate, cert *Certificate) []*Certificate {
+ n := make([]*Certificate, len(chain)+1)
+ copy(n, chain)
+ n[len(chain)] = cert
+ return n
+}
+
+func (c *Certificate) buildChains(cache map[int][][]*Certificate, currentChain []*Certificate, opts *VerifyOptions) (chains [][]*Certificate, err os.Error) {
+ for _, rootNum := range opts.Roots.findVerifiedParents(c) {
+ root := opts.Roots.certs[rootNum]
+ err = root.isValid(rootCertificate, opts)
+ if err != nil {
+ continue
+ }
+ chains = append(chains, appendToFreshChain(currentChain, root))
+ }
+
+nextIntermediate:
+ for _, intermediateNum := range opts.Intermediates.findVerifiedParents(c) {
+ intermediate := opts.Intermediates.certs[intermediateNum]
+ for _, cert := range currentChain {
+ if cert == intermediate {
+ continue nextIntermediate
+ }
+ }
+ err = intermediate.isValid(intermediateCertificate, opts)
+ if err != nil {
+ continue
+ }
+ var childChains [][]*Certificate
+ childChains, ok := cache[intermediateNum]
+ if !ok {
+ childChains, err = intermediate.buildChains(cache, appendToFreshChain(currentChain, intermediate), opts)
+ cache[intermediateNum] = childChains
+ }
+ chains = append(chains, childChains...)
+ }
+
+ if len(chains) > 0 {
+ err = nil
+ }
+
+ if len(chains) == 0 && err == nil {
+ err = UnknownAuthorityError{c}
+ }
+
+ return
+}
+
+func matchHostnames(pattern, host string) bool {
+ if len(pattern) == 0 || len(host) == 0 {
+ return false
+ }
+
+ patternParts := strings.Split(pattern, ".")
+ hostParts := strings.Split(host, ".")
+
+ if len(patternParts) != len(hostParts) {
+ return false
+ }
+
+ for i, patternPart := range patternParts {
+ if patternPart == "*" {
+ continue
+ }
+ if patternPart != hostParts[i] {
+ return false
+ }
+ }
+
+ return true
+}
+
+// VerifyHostname returns nil if c is a valid certificate for the named host.
+// Otherwise it returns an os.Error describing the mismatch.
+func (c *Certificate) VerifyHostname(h string) os.Error {
+ if len(c.DNSNames) > 0 {
+ for _, match := range c.DNSNames {
+ if matchHostnames(match, h) {
+ return nil
+ }
+ }
+ // If Subject Alt Name is given, we ignore the common name.
+ } else if matchHostnames(c.Subject.CommonName, h) {
+ return nil
+ }
+
+ return HostnameError{c, h}
+}
diff --git a/src/pkg/crypto/x509/verify_test.go b/src/pkg/crypto/x509/verify_test.go
new file mode 100644
index 000000000..111f60eb1
--- /dev/null
+++ b/src/pkg/crypto/x509/verify_test.go
@@ -0,0 +1,391 @@
+// Copyright 2011 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 (
+ "encoding/pem"
+ "os"
+ "strings"
+ "testing"
+)
+
+type verifyTest struct {
+ leaf string
+ intermediates []string
+ roots []string
+ currentTime int64
+ dnsName string
+
+ errorCallback func(*testing.T, int, os.Error) bool
+ expectedChains [][]string
+}
+
+var verifyTests = []verifyTest{
+ {
+ leaf: googleLeaf,
+ intermediates: []string{thawteIntermediate},
+ roots: []string{verisignRoot},
+ currentTime: 1302726541,
+ dnsName: "www.google.com",
+
+ expectedChains: [][]string{
+ []string{"Google", "Thawte", "VeriSign"},
+ },
+ },
+ {
+ leaf: googleLeaf,
+ intermediates: []string{thawteIntermediate},
+ roots: []string{verisignRoot},
+ currentTime: 1302726541,
+ dnsName: "www.example.com",
+
+ errorCallback: expectHostnameError,
+ },
+ {
+ leaf: googleLeaf,
+ intermediates: []string{thawteIntermediate},
+ roots: []string{verisignRoot},
+ currentTime: 1,
+ dnsName: "www.example.com",
+
+ errorCallback: expectExpired,
+ },
+ {
+ leaf: googleLeaf,
+ roots: []string{verisignRoot},
+ currentTime: 1302726541,
+ dnsName: "www.google.com",
+
+ errorCallback: expectAuthorityUnknown,
+ },
+ {
+ leaf: googleLeaf,
+ intermediates: []string{verisignRoot, thawteIntermediate},
+ roots: []string{verisignRoot},
+ currentTime: 1302726541,
+ dnsName: "www.google.com",
+
+ expectedChains: [][]string{
+ []string{"Google", "Thawte", "VeriSign"},
+ },
+ },
+ {
+ leaf: dnssecExpLeaf,
+ intermediates: []string{startComIntermediate},
+ roots: []string{startComRoot},
+ currentTime: 1302726541,
+
+ expectedChains: [][]string{
+ []string{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
+ },
+ },
+ {
+ leaf: dnssecExpLeaf,
+ intermediates: []string{startComIntermediate, startComRoot},
+ roots: []string{startComRoot},
+ currentTime: 1302726541,
+
+ expectedChains: [][]string{
+ []string{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
+ []string{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority", "StartCom Certification Authority"},
+ },
+ },
+}
+
+func expectHostnameError(t *testing.T, i int, err os.Error) (ok bool) {
+ if _, ok := err.(HostnameError); !ok {
+ t.Errorf("#%d: error was not a HostnameError: %s", i, err)
+ return false
+ }
+ return true
+}
+
+func expectExpired(t *testing.T, i int, err os.Error) (ok bool) {
+ if inval, ok := err.(CertificateInvalidError); !ok || inval.Reason != Expired {
+ t.Errorf("#%d: error was not Expired: %s", i, err)
+ return false
+ }
+ return true
+}
+
+func expectAuthorityUnknown(t *testing.T, i int, err os.Error) (ok bool) {
+ if _, ok := err.(UnknownAuthorityError); !ok {
+ t.Errorf("#%d: error was not UnknownAuthorityError: %s", i, err)
+ return false
+ }
+ return true
+}
+
+func certificateFromPEM(pemBytes string) (*Certificate, os.Error) {
+ block, _ := pem.Decode([]byte(pemBytes))
+ if block == nil {
+ return nil, os.NewError("failed to decode PEM")
+ }
+ return ParseCertificate(block.Bytes)
+}
+
+func TestVerify(t *testing.T) {
+ for i, test := range verifyTests {
+ opts := VerifyOptions{
+ Roots: NewCertPool(),
+ Intermediates: NewCertPool(),
+ DNSName: test.dnsName,
+ CurrentTime: test.currentTime,
+ }
+
+ for j, root := range test.roots {
+ ok := opts.Roots.AppendCertsFromPEM([]byte(root))
+ if !ok {
+ t.Errorf("#%d: failed to parse root #%d", i, j)
+ return
+ }
+ }
+
+ for j, intermediate := range test.intermediates {
+ ok := opts.Intermediates.AppendCertsFromPEM([]byte(intermediate))
+ if !ok {
+ t.Errorf("#%d: failed to parse intermediate #%d", i, j)
+ return
+ }
+ }
+
+ leaf, err := certificateFromPEM(test.leaf)
+ if err != nil {
+ t.Errorf("#%d: failed to parse leaf: %s", i, err)
+ return
+ }
+
+ chains, err := leaf.Verify(opts)
+
+ if test.errorCallback == nil && err != nil {
+ t.Errorf("#%d: unexpected error: %s", i, err)
+ }
+ if test.errorCallback != nil {
+ if !test.errorCallback(t, i, err) {
+ return
+ }
+ }
+
+ if len(chains) != len(test.expectedChains) {
+ t.Errorf("#%d: wanted %d chains, got %d", i, len(test.expectedChains), len(chains))
+ }
+
+ // We check that each returned chain matches a chain from
+ // expectedChains but an entry in expectedChains can't match
+ // two chains.
+ seenChains := make([]bool, len(chains))
+ NextOutputChain:
+ for _, chain := range chains {
+ TryNextExpected:
+ for j, expectedChain := range test.expectedChains {
+ if seenChains[j] {
+ continue
+ }
+ if len(chain) != len(expectedChain) {
+ continue
+ }
+ for k, cert := range chain {
+ if strings.Index(nameToKey(&cert.Subject), expectedChain[k]) == -1 {
+ continue TryNextExpected
+ }
+ }
+ // we matched
+ seenChains[j] = true
+ continue NextOutputChain
+ }
+ t.Errorf("#%d: No expected chain matched %s", i, chainToDebugString(chain))
+ }
+ }
+}
+
+func chainToDebugString(chain []*Certificate) string {
+ var chainStr string
+ for _, cert := range chain {
+ if len(chainStr) > 0 {
+ chainStr += " -> "
+ }
+ chainStr += nameToKey(&cert.Subject)
+ }
+ return chainStr
+}
+
+const verisignRoot = `-----BEGIN CERTIFICATE-----
+MIICPDCCAaUCEHC65B0Q2Sk0tjjKewPMur8wDQYJKoZIhvcNAQECBQAwXzELMAkG
+A1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFz
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+ADCBiQKBgQDJXFme8huKARS0EN8EQNvjV69qRUCPhAwL0TPZ2RHP7gJYHyX3KqhE
+BarsAx94f56TuZoAqiN91qyFomNFx3InzPRMxnVx0jnvT0Lwdd8KkMaOIG+YD/is
+I19wKTakyYbnsZogy1Olhec9vn2a/iRFM9x2Fe0PonFkTGUugWhFpwIDAQABMA0G
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+AA9WjQKZ7aKQRUzkuxCkPfAyAw7xzvjoyVGM5mKf5p/AfbdynMk2OmufTqj/ZA1k
+-----END CERTIFICATE-----
+`
+
+const thawteIntermediate = `-----BEGIN CERTIFICATE-----
+MIIDIzCCAoygAwIBAgIEMAAAAjANBgkqhkiG9w0BAQUFADBfMQswCQYDVQQGEwJV
+UzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsTLkNsYXNzIDMgUHVi
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+BwMBBggrBgEFBQcDAgYJYIZIAYb4QgQBBgpghkgBhvhFAQgBMA0GCSqGSIb3DQEB
+BQUAA4GBAFWsY+reod3SkF+fC852vhNRj5PZBSvIG3dLrWlQoe7e3P3bB+noOZTc
+q3J5Lwa/q4FwxKjt6lM07e8eU9kGx1Yr0Vz00YqOtCuxN5BICEIlxT6Ky3/rbwTR
+bcV0oveifHtgPHfNDs5IAn8BL7abN+AqKjbc1YXWrOU/VG+WHgWv
+-----END CERTIFICATE-----
+`
+
+const googleLeaf = `-----BEGIN CERTIFICATE-----
+MIIDITCCAoqgAwIBAgIQL9+89q6RUm0PmqPfQDQ+mjANBgkqhkiG9w0BAQUFADBM
+MQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhhd3RlIENvbnN1bHRpbmcgKFB0eSkg
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+LmNvbS9UaGF3dGVTR0NDQS5jcmwwKAYDVR0lBCEwHwYIKwYBBQUHAwEGCCsGAQUF
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+Oi8vb2NzcC50aGF3dGUuY29tMD4GCCsGAQUFBzAChjJodHRwOi8vd3d3LnRoYXd0
+ZS5jb20vcmVwb3NpdG9yeS9UaGF3dGVfU0dDX0NBLmNydDANBgkqhkiG9w0BAQUF
+AAOBgQCfQ89bxFApsb/isJr/aiEdLRLDLE5a+RLizrmCUi3nHX4adpaQedEkUjh5
+u2ONgJd8IyAPkU0Wueru9G2Jysa9zCRo1kNbzipYvzwY4OA8Ys+WAi0oR1A04Se6
+z5nRUP8pJcA2NhUzUnC+MY+f6H/nEQyNv4SgQhqAibAxWEEHXw==
+-----END CERTIFICATE-----`
+
+const dnssecExpLeaf = `-----BEGIN CERTIFICATE-----
+MIIGzTCCBbWgAwIBAgIDAdD6MA0GCSqGSIb3DQEBBQUAMIGMMQswCQYDVQQGEwJJ
+TDEWMBQGA1UEChMNU3RhcnRDb20gTHRkLjErMCkGA1UECxMiU2VjdXJlIERpZ2l0
+YWwgQ2VydGlmaWNhdGUgU2lnbmluZzE4MDYGA1UEAxMvU3RhcnRDb20gQ2xhc3Mg
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+YXN0ZXJAZG5zc2VjLWV4cC5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK
+AoIBAQDEdF/22vaxrPbqpgVYMWi+alfpzBctpbfLBdPGuqOazJdCT0NbWcK8/+B4
+X6OlSOURNIlwLzhkmwVsWdVv6dVSaN7d4yI/fJkvgfDB9+au+iBJb6Pcz8ULBfe6
+D8HVvqKdORp6INzHz71z0sghxrQ0EAEkoWAZLh+kcn2ZHdcmZaBNUfjmGbyU6PRt
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+7eBfvcwe8czW/N1rbE0CoR7h9+HnIrjnVG9RhBiZEiw3mUmF++Up26+4KTdRKbu3
++BL4yMpfd66z0+zzqu+HkvyLpFn5AgMBAAGjggL/MIIC+zAJBgNVHRMEAjAAMAsG
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+drzfh2JQaXhgV86+4jUwHwYDVR0jBBgwFoAU60I00Jiwq5/0G2sI98xkLu8OLEUw
+LQYDVR0RBCYwJIISd3d3LmRuc3NlYy1leHAub3Jngg5kbnNzZWMtZXhwLm9yZzCC
+AUIGA1UdIASCATkwggE1MIIBMQYLKwYBBAGBtTcBAgIwggEgMC4GCCsGAQUFBwIB
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+cnRzc2wuY29tL2NlcnRzL3N1Yi5jbGFzczEuc2VydmVyLmNhLmNydDAjBgNVHRIE
+HDAahhhodHRwOi8vd3d3LnN0YXJ0c3NsLmNvbS8wDQYJKoZIhvcNAQEFBQADggEB
+ACXj6SB59KRJPenn6gUdGEqcta97U769SATyiQ87i9er64qLwvIGLMa3o2Rcgl2Y
+kghUeyLdN/EXyFBYA8L8uvZREPoc7EZukpT/ZDLXy9i2S0jkOxvF2fD/XLbcjGjM
+iEYG1/6ASw0ri9C0k4oDDoJLCoeH9++yqF7SFCCMcDkJqiAGXNb4euDpa8vCCtEQ
+CSS+ObZbfkreRt3cNCf5LfCXe9OsTnCfc8Cuq81c0oLaG+SmaLUQNBuToq8e9/Zm
++b+/a3RVjxmkV5OCcGVBxsXNDn54Q6wsdw0TBMcjwoEndzpLS7yWgFbbkq5ZiGpw
+Qibb2+CfKuQ+WFV1GkVQmVA=
+-----END CERTIFICATE-----`
+
+const startComIntermediate = `-----BEGIN CERTIFICATE-----
+MIIGNDCCBBygAwIBAgIBGDANBgkqhkiG9w0BAQUFADB9MQswCQYDVQQGEwJJTDEW
+MBQGA1UEChMNU3RhcnRDb20gTHRkLjErMCkGA1UECxMiU2VjdXJlIERpZ2l0YWwg
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+0q6Dp6jOW6c=
+-----END CERTIFICATE-----`
+
+const startComRoot = `-----BEGIN CERTIFICATE-----
+MIIHyTCCBbGgAwIBAgIBATANBgkqhkiG9w0BAQUFADB9MQswCQYDVQQGEwJJTDEW
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+NOsF/5oirpt9P/FlUQqmMGqz9IgcgA38corog14=
+-----END CERTIFICATE-----`
diff --git a/src/pkg/crypto/x509/x509.go b/src/pkg/crypto/x509/x509.go
new file mode 100644
index 000000000..8fda47159
--- /dev/null
+++ b/src/pkg/crypto/x509/x509.go
@@ -0,0 +1,1073 @@
+// 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 parses X.509-encoded keys and certificates.
+package x509
+
+import (
+ "asn1"
+ "big"
+ "bytes"
+ "crypto"
+ "crypto/dsa"
+ "crypto/rsa"
+ "crypto/sha1"
+ "crypto/x509/pkix"
+ "encoding/pem"
+ "io"
+ "os"
+ "time"
+)
+
+// pkcs1PrivateKey is a structure which mirrors the PKCS#1 ASN.1 for an RSA private key.
+type pkcs1PrivateKey struct {
+ Version int
+ N *big.Int
+ E int
+ D *big.Int
+ P *big.Int
+ Q *big.Int
+ // We ignore these values, if present, because rsa will calculate them.
+ Dp *big.Int `asn1:"optional"`
+ Dq *big.Int `asn1:"optional"`
+ Qinv *big.Int `asn1:"optional"`
+
+ AdditionalPrimes []pkcs1AdditionalRSAPrime `asn1:"optional"`
+}
+
+type pkcs1AdditionalRSAPrime struct {
+ Prime *big.Int
+
+ // We ignore these values because rsa will calculate them.
+ Exp *big.Int
+ Coeff *big.Int
+}
+
+// ParsePKCS1PrivateKey returns an RSA private key from its ASN.1 PKCS#1 DER encoded form.
+func ParsePKCS1PrivateKey(der []byte) (key *rsa.PrivateKey, err os.Error) {
+ var priv pkcs1PrivateKey
+ rest, err := asn1.Unmarshal(der, &priv)
+ if len(rest) > 0 {
+ err = asn1.SyntaxError{"trailing data"}
+ return
+ }
+ if err != nil {
+ return
+ }
+
+ if priv.Version > 1 {
+ return nil, os.NewError("x509: unsupported private key version")
+ }
+
+ if priv.N.Sign() <= 0 || priv.D.Sign() <= 0 || priv.P.Sign() <= 0 || priv.Q.Sign() <= 0 {
+ return nil, os.NewError("private key contains zero or negative value")
+ }
+
+ key = new(rsa.PrivateKey)
+ key.PublicKey = rsa.PublicKey{
+ E: priv.E,
+ N: priv.N,
+ }
+
+ key.D = priv.D
+ key.Primes = make([]*big.Int, 2+len(priv.AdditionalPrimes))
+ key.Primes[0] = priv.P
+ key.Primes[1] = priv.Q
+ for i, a := range priv.AdditionalPrimes {
+ if a.Prime.Sign() <= 0 {
+ return nil, os.NewError("private key contains zero or negative prime")
+ }
+ key.Primes[i+2] = a.Prime
+ // We ignore the other two values because rsa will calculate
+ // them as needed.
+ }
+
+ err = key.Validate()
+ if err != nil {
+ return nil, err
+ }
+ key.Precompute()
+
+ return
+}
+
+// MarshalPKCS1PrivateKey converts a private key to ASN.1 DER encoded form.
+func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte {
+ key.Precompute()
+
+ version := 0
+ if len(key.Primes) > 2 {
+ version = 1
+ }
+
+ priv := pkcs1PrivateKey{
+ Version: version,
+ N: key.N,
+ E: key.PublicKey.E,
+ D: key.D,
+ P: key.Primes[0],
+ Q: key.Primes[1],
+ Dp: key.Precomputed.Dp,
+ Dq: key.Precomputed.Dq,
+ Qinv: key.Precomputed.Qinv,
+ }
+
+ priv.AdditionalPrimes = make([]pkcs1AdditionalRSAPrime, len(key.Precomputed.CRTValues))
+ for i, values := range key.Precomputed.CRTValues {
+ priv.AdditionalPrimes[i].Prime = key.Primes[2+i]
+ priv.AdditionalPrimes[i].Exp = values.Exp
+ priv.AdditionalPrimes[i].Coeff = values.Coeff
+ }
+
+ b, _ := asn1.Marshal(priv)
+ return b
+}
+
+// These structures reflect the ASN.1 structure of X.509 certificates.:
+
+type certificate struct {
+ Raw asn1.RawContent
+ TBSCertificate tbsCertificate
+ SignatureAlgorithm pkix.AlgorithmIdentifier
+ SignatureValue asn1.BitString
+}
+
+type tbsCertificate struct {
+ Raw asn1.RawContent
+ Version int `asn1:"optional,explicit,default:1,tag:0"`
+ SerialNumber *big.Int
+ SignatureAlgorithm pkix.AlgorithmIdentifier
+ Issuer pkix.RDNSequence
+ Validity validity
+ Subject pkix.RDNSequence
+ PublicKey publicKeyInfo
+ UniqueId asn1.BitString `asn1:"optional,tag:1"`
+ SubjectUniqueId asn1.BitString `asn1:"optional,tag:2"`
+ Extensions []pkix.Extension `asn1:"optional,explicit,tag:3"`
+}
+
+type dsaAlgorithmParameters struct {
+ P, Q, G *big.Int
+}
+
+type dsaSignature struct {
+ R, S *big.Int
+}
+
+type validity struct {
+ NotBefore, NotAfter *time.Time
+}
+
+type publicKeyInfo struct {
+ Raw asn1.RawContent
+ Algorithm pkix.AlgorithmIdentifier
+ PublicKey asn1.BitString
+}
+
+// RFC 5280, 4.2.1.1
+type authKeyId struct {
+ Id []byte `asn1:"optional,tag:0"`
+}
+
+type SignatureAlgorithm int
+
+const (
+ UnknownSignatureAlgorithm SignatureAlgorithm = iota
+ MD2WithRSA
+ MD5WithRSA
+ SHA1WithRSA
+ SHA256WithRSA
+ SHA384WithRSA
+ SHA512WithRSA
+ DSAWithSHA1
+ DSAWithSHA256
+)
+
+type PublicKeyAlgorithm int
+
+const (
+ UnknownPublicKeyAlgorithm PublicKeyAlgorithm = iota
+ RSA
+ DSA
+)
+
+// OIDs for signature algorithms
+//
+// pkcs-1 OBJECT IDENTIFIER ::= {
+// iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 }
+//
+//
+// RFC 3279 2.2.1 RSA Signature Algorithms
+//
+// md2WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 2 }
+//
+// md5WithRSAEncryption OBJECT IDENTIFER ::= { pkcs-1 4 }
+//
+// sha-1WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 5 }
+//
+// dsaWithSha1 OBJECT IDENTIFIER ::= {
+// iso(1) member-body(2) us(840) x9-57(10040) x9cm(4) 3 }
+//
+//
+// RFC 4055 5 PKCS #1 Version 1.5
+//
+// sha256WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 11 }
+//
+// sha384WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 12 }
+//
+// sha512WithRSAEncryption OBJECT IDENTIFIER ::= { pkcs-1 13 }
+//
+//
+// RFC 5758 3.1 DSA Signature Algorithms
+//
+// dsaWithSha356 OBJECT IDENTIFER ::= {
+// joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
+// algorithms(4) id-dsa-with-sha2(3) 2}
+//
+var (
+ oidSignatureMD2WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 2}
+ oidSignatureMD5WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 4}
+ oidSignatureSHA1WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}
+ oidSignatureSHA256WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 11}
+ oidSignatureSHA384WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 12}
+ oidSignatureSHA512WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 13}
+ oidSignatureDSAWithSHA1 = asn1.ObjectIdentifier{1, 2, 840, 10040, 4, 3}
+ oidSignatureDSAWithSHA256 = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 4, 3, 2}
+)
+
+func getSignatureAlgorithmFromOID(oid asn1.ObjectIdentifier) SignatureAlgorithm {
+ switch {
+ case oid.Equal(oidSignatureMD2WithRSA):
+ return MD2WithRSA
+ case oid.Equal(oidSignatureMD5WithRSA):
+ return MD5WithRSA
+ case oid.Equal(oidSignatureSHA1WithRSA):
+ return SHA1WithRSA
+ case oid.Equal(oidSignatureSHA256WithRSA):
+ return SHA256WithRSA
+ case oid.Equal(oidSignatureSHA384WithRSA):
+ return SHA384WithRSA
+ case oid.Equal(oidSignatureSHA512WithRSA):
+ return SHA512WithRSA
+ case oid.Equal(oidSignatureDSAWithSHA1):
+ return DSAWithSHA1
+ case oid.Equal(oidSignatureDSAWithSHA256):
+ return DSAWithSHA256
+ }
+ return UnknownSignatureAlgorithm
+}
+
+// RFC 3279, 2.3 Public Key Algorithms
+//
+// pkcs-1 OBJECT IDENTIFIER ::== { iso(1) member-body(2) us(840)
+// rsadsi(113549) pkcs(1) 1 }
+//
+// rsaEncryption OBJECT IDENTIFIER ::== { pkcs1-1 1 }
+//
+// id-dsa OBJECT IDENTIFIER ::== { iso(1) member-body(2) us(840)
+// x9-57(10040) x9cm(4) 1 }
+var (
+ oidPublicKeyRsa = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1}
+ oidPublicKeyDsa = asn1.ObjectIdentifier{1, 2, 840, 10040, 4, 1}
+)
+
+func getPublicKeyAlgorithmFromOID(oid asn1.ObjectIdentifier) PublicKeyAlgorithm {
+ switch {
+ case oid.Equal(oidPublicKeyRsa):
+ return RSA
+ case oid.Equal(oidPublicKeyDsa):
+ return DSA
+ }
+ return UnknownPublicKeyAlgorithm
+}
+
+// KeyUsage represents the set of actions that are valid for a given key. It's
+// a bitmap of the KeyUsage* constants.
+type KeyUsage int
+
+const (
+ KeyUsageDigitalSignature KeyUsage = 1 << iota
+ KeyUsageContentCommitment
+ KeyUsageKeyEncipherment
+ KeyUsageDataEncipherment
+ KeyUsageKeyAgreement
+ KeyUsageCertSign
+ KeyUsageCRLSign
+ KeyUsageEncipherOnly
+ KeyUsageDecipherOnly
+)
+
+// RFC 5280, 4.2.1.12 Extended Key Usage
+//
+// anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 }
+//
+// id-kp OBJECT IDENTIFIER ::= { id-pkix 3 }
+//
+// id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 }
+// id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 }
+// id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 }
+// id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 }
+// id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 }
+// id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 }
+var (
+ oidExtKeyUsageAny = asn1.ObjectIdentifier{2, 5, 29, 37, 0}
+ oidExtKeyUsageServerAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 1}
+ oidExtKeyUsageClientAuth = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 2}
+ oidExtKeyUsageCodeSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 3}
+ oidExtKeyUsageEmailProtection = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 4}
+ oidExtKeyUsageTimeStamping = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 8}
+ oidExtKeyUsageOCSPSigning = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 3, 9}
+)
+
+// ExtKeyUsage represents an extended set of actions that are valid for a given key.
+// Each of the ExtKeyUsage* constants define a unique action.
+type ExtKeyUsage int
+
+const (
+ ExtKeyUsageAny ExtKeyUsage = iota
+ ExtKeyUsageServerAuth
+ ExtKeyUsageClientAuth
+ ExtKeyUsageCodeSigning
+ ExtKeyUsageEmailProtection
+ ExtKeyUsageTimeStamping
+ ExtKeyUsageOCSPSigning
+)
+
+// A Certificate represents an X.509 certificate.
+type Certificate struct {
+ Raw []byte // Complete ASN.1 DER content (certificate, signature algorithm and signature).
+ RawTBSCertificate []byte // Certificate part of raw ASN.1 DER content.
+ RawSubjectPublicKeyInfo []byte // DER encoded SubjectPublicKeyInfo.
+
+ Signature []byte
+ SignatureAlgorithm SignatureAlgorithm
+
+ PublicKeyAlgorithm PublicKeyAlgorithm
+ PublicKey interface{}
+
+ Version int
+ SerialNumber *big.Int
+ Issuer pkix.Name
+ Subject pkix.Name
+ NotBefore, NotAfter *time.Time // Validity bounds.
+ KeyUsage KeyUsage
+
+ ExtKeyUsage []ExtKeyUsage // Sequence of extended key usages.
+ UnknownExtKeyUsage []asn1.ObjectIdentifier // Encountered extended key usages unknown to this package.
+
+ BasicConstraintsValid bool // if true then the next two fields are valid.
+ IsCA bool
+ MaxPathLen int
+
+ SubjectKeyId []byte
+ AuthorityKeyId []byte
+
+ // Subject Alternate Name values
+ DNSNames []string
+ EmailAddresses []string
+
+ // Name constraints
+ PermittedDNSDomainsCritical bool // if true then the name constraints are marked critical.
+ PermittedDNSDomains []string
+
+ PolicyIdentifiers []asn1.ObjectIdentifier
+}
+
+// UnsupportedAlgorithmError results from attempting to perform an operation
+// that involves algorithms that are not currently implemented.
+type UnsupportedAlgorithmError struct{}
+
+func (UnsupportedAlgorithmError) String() string {
+ return "cannot verify signature: algorithm unimplemented"
+}
+
+// ConstraintViolationError results when a requested usage is not permitted by
+// a certificate. For example: checking a signature when the public key isn't a
+// certificate signing key.
+type ConstraintViolationError struct{}
+
+func (ConstraintViolationError) String() string {
+ return "invalid signature: parent certificate cannot sign this kind of certificate"
+}
+
+func (c *Certificate) Equal(other *Certificate) bool {
+ return bytes.Equal(c.Raw, other.Raw)
+}
+
+// CheckSignatureFrom verifies that the signature on c is a valid signature
+// from parent.
+func (c *Certificate) CheckSignatureFrom(parent *Certificate) (err os.Error) {
+ // RFC 5280, 4.2.1.9:
+ // "If the basic constraints extension is not present in a version 3
+ // certificate, or the extension is present but the cA boolean is not
+ // asserted, then the certified public key MUST NOT be used to verify
+ // certificate signatures."
+ if parent.Version == 3 && !parent.BasicConstraintsValid ||
+ parent.BasicConstraintsValid && !parent.IsCA {
+ return ConstraintViolationError{}
+ }
+
+ if parent.KeyUsage != 0 && parent.KeyUsage&KeyUsageCertSign == 0 {
+ return ConstraintViolationError{}
+ }
+
+ if parent.PublicKeyAlgorithm == UnknownPublicKeyAlgorithm {
+ return UnsupportedAlgorithmError{}
+ }
+
+ // TODO(agl): don't ignore the path length constraint.
+
+ return parent.CheckSignature(c.SignatureAlgorithm, c.RawTBSCertificate, c.Signature)
+}
+
+// CheckSignature verifies that signature is a valid signature over signed from
+// c's public key.
+func (c *Certificate) CheckSignature(algo SignatureAlgorithm, signed, signature []byte) (err os.Error) {
+ var hashType crypto.Hash
+
+ switch algo {
+ case SHA1WithRSA, DSAWithSHA1:
+ hashType = crypto.SHA1
+ case SHA256WithRSA, DSAWithSHA256:
+ hashType = crypto.SHA256
+ case SHA384WithRSA:
+ hashType = crypto.SHA384
+ case SHA512WithRSA:
+ hashType = crypto.SHA512
+ default:
+ return UnsupportedAlgorithmError{}
+ }
+
+ h := hashType.New()
+ if h == nil {
+ return UnsupportedAlgorithmError{}
+ }
+
+ h.Write(signed)
+ digest := h.Sum()
+
+ switch pub := c.PublicKey.(type) {
+ case *rsa.PublicKey:
+ return rsa.VerifyPKCS1v15(pub, hashType, digest, signature)
+ case *dsa.PublicKey:
+ dsaSig := new(dsaSignature)
+ if _, err := asn1.Unmarshal(signature, dsaSig); err != nil {
+ return err
+ }
+ if dsaSig.R.Sign() <= 0 || dsaSig.S.Sign() <= 0 {
+ return os.NewError("DSA signature contained zero or negative values")
+ }
+ if !dsa.Verify(pub, digest, dsaSig.R, dsaSig.S) {
+ return os.NewError("DSA verification failure")
+ }
+ return
+ }
+ return UnsupportedAlgorithmError{}
+}
+
+// CheckCRLSignature checks that the signature in crl is from c.
+func (c *Certificate) CheckCRLSignature(crl *pkix.CertificateList) (err os.Error) {
+ algo := getSignatureAlgorithmFromOID(crl.SignatureAlgorithm.Algorithm)
+ return c.CheckSignature(algo, crl.TBSCertList.Raw, crl.SignatureValue.RightAlign())
+}
+
+type UnhandledCriticalExtension struct{}
+
+func (h UnhandledCriticalExtension) String() string {
+ return "unhandled critical extension"
+}
+
+type basicConstraints struct {
+ IsCA bool `asn1:"optional"`
+ MaxPathLen int `asn1:"optional"`
+}
+
+type rsaPublicKey struct {
+ N *big.Int
+ E int
+}
+
+// RFC 5280 4.2.1.4
+type policyInformation struct {
+ Policy asn1.ObjectIdentifier
+ // policyQualifiers omitted
+}
+
+// RFC 5280, 4.2.1.10
+type nameConstraints struct {
+ Permitted []generalSubtree `asn1:"optional,tag:0"`
+ Excluded []generalSubtree `asn1:"optional,tag:1"`
+}
+
+type generalSubtree struct {
+ Name string `asn1:"tag:2,optional,ia5"`
+ Min int `asn1:"optional,tag:0"`
+ Max int `asn1:"optional,tag:1"`
+}
+
+func parsePublicKey(algo PublicKeyAlgorithm, keyData *publicKeyInfo) (interface{}, os.Error) {
+ asn1Data := keyData.PublicKey.RightAlign()
+ switch algo {
+ case RSA:
+ p := new(rsaPublicKey)
+ _, err := asn1.Unmarshal(asn1Data, p)
+ if err != nil {
+ return nil, err
+ }
+
+ pub := &rsa.PublicKey{
+ E: p.E,
+ N: p.N,
+ }
+ return pub, nil
+ case DSA:
+ var p *big.Int
+ _, err := asn1.Unmarshal(asn1Data, &p)
+ if err != nil {
+ return nil, err
+ }
+ paramsData := keyData.Algorithm.Parameters.FullBytes
+ params := new(dsaAlgorithmParameters)
+ _, err = asn1.Unmarshal(paramsData, params)
+ if err != nil {
+ return nil, err
+ }
+ if p.Sign() <= 0 || params.P.Sign() <= 0 || params.Q.Sign() <= 0 || params.G.Sign() <= 0 {
+ return nil, os.NewError("zero or negative DSA parameter")
+ }
+ pub := &dsa.PublicKey{
+ Parameters: dsa.Parameters{
+ P: params.P,
+ Q: params.Q,
+ G: params.G,
+ },
+ Y: p,
+ }
+ return pub, nil
+ default:
+ return nil, nil
+ }
+ panic("unreachable")
+}
+
+func parseCertificate(in *certificate) (*Certificate, os.Error) {
+ out := new(Certificate)
+ out.Raw = in.Raw
+ out.RawTBSCertificate = in.TBSCertificate.Raw
+ out.RawSubjectPublicKeyInfo = in.TBSCertificate.PublicKey.Raw
+
+ out.Signature = in.SignatureValue.RightAlign()
+ out.SignatureAlgorithm =
+ getSignatureAlgorithmFromOID(in.TBSCertificate.SignatureAlgorithm.Algorithm)
+
+ out.PublicKeyAlgorithm =
+ getPublicKeyAlgorithmFromOID(in.TBSCertificate.PublicKey.Algorithm.Algorithm)
+ var err os.Error
+ out.PublicKey, err = parsePublicKey(out.PublicKeyAlgorithm, &in.TBSCertificate.PublicKey)
+ if err != nil {
+ return nil, err
+ }
+
+ if in.TBSCertificate.SerialNumber.Sign() < 0 {
+ return nil, os.NewError("negative serial number")
+ }
+
+ out.Version = in.TBSCertificate.Version + 1
+ out.SerialNumber = in.TBSCertificate.SerialNumber
+ out.Issuer.FillFromRDNSequence(&in.TBSCertificate.Issuer)
+ out.Subject.FillFromRDNSequence(&in.TBSCertificate.Subject)
+ out.NotBefore = in.TBSCertificate.Validity.NotBefore
+ out.NotAfter = in.TBSCertificate.Validity.NotAfter
+
+ for _, e := range in.TBSCertificate.Extensions {
+ if len(e.Id) == 4 && e.Id[0] == 2 && e.Id[1] == 5 && e.Id[2] == 29 {
+ switch e.Id[3] {
+ case 15:
+ // RFC 5280, 4.2.1.3
+ var usageBits asn1.BitString
+ _, err := asn1.Unmarshal(e.Value, &usageBits)
+
+ if err == nil {
+ var usage int
+ for i := 0; i < 9; i++ {
+ if usageBits.At(i) != 0 {
+ usage |= 1 << uint(i)
+ }
+ }
+ out.KeyUsage = KeyUsage(usage)
+ continue
+ }
+ case 19:
+ // RFC 5280, 4.2.1.9
+ var constraints basicConstraints
+ _, err := asn1.Unmarshal(e.Value, &constraints)
+
+ if err == nil {
+ out.BasicConstraintsValid = true
+ out.IsCA = constraints.IsCA
+ out.MaxPathLen = constraints.MaxPathLen
+ continue
+ }
+ case 17:
+ // RFC 5280, 4.2.1.6
+
+ // SubjectAltName ::= GeneralNames
+ //
+ // GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
+ //
+ // GeneralName ::= CHOICE {
+ // otherName [0] OtherName,
+ // rfc822Name [1] IA5String,
+ // dNSName [2] IA5String,
+ // x400Address [3] ORAddress,
+ // directoryName [4] Name,
+ // ediPartyName [5] EDIPartyName,
+ // uniformResourceIdentifier [6] IA5String,
+ // iPAddress [7] OCTET STRING,
+ // registeredID [8] OBJECT IDENTIFIER }
+ var seq asn1.RawValue
+ _, err := asn1.Unmarshal(e.Value, &seq)
+ if err != nil {
+ return nil, err
+ }
+ if !seq.IsCompound || seq.Tag != 16 || seq.Class != 0 {
+ return nil, asn1.StructuralError{"bad SAN sequence"}
+ }
+
+ parsedName := false
+
+ rest := seq.Bytes
+ for len(rest) > 0 {
+ var v asn1.RawValue
+ rest, err = asn1.Unmarshal(rest, &v)
+ if err != nil {
+ return nil, err
+ }
+ switch v.Tag {
+ case 1:
+ out.EmailAddresses = append(out.EmailAddresses, string(v.Bytes))
+ parsedName = true
+ case 2:
+ out.DNSNames = append(out.DNSNames, string(v.Bytes))
+ parsedName = true
+ }
+ }
+
+ if parsedName {
+ continue
+ }
+ // If we didn't parse any of the names then we
+ // fall through to the critical check below.
+
+ case 30:
+ // RFC 5280, 4.2.1.10
+
+ // NameConstraints ::= SEQUENCE {
+ // permittedSubtrees [0] GeneralSubtrees OPTIONAL,
+ // excludedSubtrees [1] GeneralSubtrees OPTIONAL }
+ //
+ // GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree
+ //
+ // GeneralSubtree ::= SEQUENCE {
+ // base GeneralName,
+ // minimum [0] BaseDistance DEFAULT 0,
+ // maximum [1] BaseDistance OPTIONAL }
+ //
+ // BaseDistance ::= INTEGER (0..MAX)
+
+ var constraints nameConstraints
+ _, err := asn1.Unmarshal(e.Value, &constraints)
+ if err != nil {
+ return nil, err
+ }
+
+ if len(constraints.Excluded) > 0 && e.Critical {
+ return out, UnhandledCriticalExtension{}
+ }
+
+ for _, subtree := range constraints.Permitted {
+ if subtree.Min > 0 || subtree.Max > 0 || len(subtree.Name) == 0 {
+ if e.Critical {
+ return out, UnhandledCriticalExtension{}
+ }
+ continue
+ }
+ out.PermittedDNSDomains = append(out.PermittedDNSDomains, subtree.Name)
+ }
+ continue
+
+ case 35:
+ // RFC 5280, 4.2.1.1
+ var a authKeyId
+ _, err = asn1.Unmarshal(e.Value, &a)
+ if err != nil {
+ return nil, err
+ }
+ out.AuthorityKeyId = a.Id
+ continue
+
+ case 37:
+ // RFC 5280, 4.2.1.12. Extended Key Usage
+
+ // id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 }
+ //
+ // ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
+ //
+ // KeyPurposeId ::= OBJECT IDENTIFIER
+
+ var keyUsage []asn1.ObjectIdentifier
+ _, err = asn1.Unmarshal(e.Value, &keyUsage)
+ if err != nil {
+ return nil, err
+ }
+
+ for _, u := range keyUsage {
+ switch {
+ case u.Equal(oidExtKeyUsageAny):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageAny)
+ case u.Equal(oidExtKeyUsageServerAuth):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageServerAuth)
+ case u.Equal(oidExtKeyUsageClientAuth):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageClientAuth)
+ case u.Equal(oidExtKeyUsageCodeSigning):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageCodeSigning)
+ case u.Equal(oidExtKeyUsageEmailProtection):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageEmailProtection)
+ case u.Equal(oidExtKeyUsageTimeStamping):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageTimeStamping)
+ case u.Equal(oidExtKeyUsageOCSPSigning):
+ out.ExtKeyUsage = append(out.ExtKeyUsage, ExtKeyUsageOCSPSigning)
+ default:
+ out.UnknownExtKeyUsage = append(out.UnknownExtKeyUsage, u)
+ }
+ }
+
+ continue
+
+ case 14:
+ // RFC 5280, 4.2.1.2
+ var keyid []byte
+ _, err = asn1.Unmarshal(e.Value, &keyid)
+ if err != nil {
+ return nil, err
+ }
+ out.SubjectKeyId = keyid
+ continue
+
+ case 32:
+ // RFC 5280 4.2.1.4: Certificate Policies
+ var policies []policyInformation
+ if _, err = asn1.Unmarshal(e.Value, &policies); err != nil {
+ return nil, err
+ }
+ out.PolicyIdentifiers = make([]asn1.ObjectIdentifier, len(policies))
+ for i, policy := range policies {
+ out.PolicyIdentifiers[i] = policy.Policy
+ }
+ }
+ }
+
+ if e.Critical {
+ return out, UnhandledCriticalExtension{}
+ }
+ }
+
+ return out, nil
+}
+
+// ParseCertificate parses a single certificate from the given ASN.1 DER data.
+func ParseCertificate(asn1Data []byte) (*Certificate, os.Error) {
+ var cert certificate
+ rest, err := asn1.Unmarshal(asn1Data, &cert)
+ if err != nil {
+ return nil, err
+ }
+ if len(rest) > 0 {
+ return nil, asn1.SyntaxError{"trailing data"}
+ }
+
+ return parseCertificate(&cert)
+}
+
+// ParseCertificates parses one or more certificates from the given ASN.1 DER
+// data. The certificates must be concatenated with no intermediate padding.
+func ParseCertificates(asn1Data []byte) ([]*Certificate, os.Error) {
+ var v []*certificate
+
+ for len(asn1Data) > 0 {
+ cert := new(certificate)
+ var err os.Error
+ asn1Data, err = asn1.Unmarshal(asn1Data, cert)
+ if err != nil {
+ return nil, err
+ }
+ v = append(v, cert)
+ }
+
+ ret := make([]*Certificate, len(v))
+ for i, ci := range v {
+ cert, err := parseCertificate(ci)
+ if err != nil {
+ return nil, err
+ }
+ ret[i] = cert
+ }
+
+ return ret, nil
+}
+
+func reverseBitsInAByte(in byte) byte {
+ b1 := in>>4 | in<<4
+ b2 := b1>>2&0x33 | b1<<2&0xcc
+ b3 := b2>>1&0x55 | b2<<1&0xaa
+ return b3
+}
+
+var (
+ oidExtensionSubjectKeyId = []int{2, 5, 29, 14}
+ oidExtensionKeyUsage = []int{2, 5, 29, 15}
+ oidExtensionAuthorityKeyId = []int{2, 5, 29, 35}
+ oidExtensionBasicConstraints = []int{2, 5, 29, 19}
+ oidExtensionSubjectAltName = []int{2, 5, 29, 17}
+ oidExtensionCertificatePolicies = []int{2, 5, 29, 32}
+ oidExtensionNameConstraints = []int{2, 5, 29, 30}
+)
+
+func buildExtensions(template *Certificate) (ret []pkix.Extension, err os.Error) {
+ ret = make([]pkix.Extension, 7 /* maximum number of elements. */ )
+ n := 0
+
+ if template.KeyUsage != 0 {
+ ret[n].Id = oidExtensionKeyUsage
+ ret[n].Critical = true
+
+ var a [2]byte
+ a[0] = reverseBitsInAByte(byte(template.KeyUsage))
+ a[1] = reverseBitsInAByte(byte(template.KeyUsage >> 8))
+
+ l := 1
+ if a[1] != 0 {
+ l = 2
+ }
+
+ ret[n].Value, err = asn1.Marshal(asn1.BitString{Bytes: a[0:l], BitLength: l * 8})
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if template.BasicConstraintsValid {
+ ret[n].Id = oidExtensionBasicConstraints
+ ret[n].Value, err = asn1.Marshal(basicConstraints{template.IsCA, template.MaxPathLen})
+ ret[n].Critical = true
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if len(template.SubjectKeyId) > 0 {
+ ret[n].Id = oidExtensionSubjectKeyId
+ ret[n].Value, err = asn1.Marshal(template.SubjectKeyId)
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if len(template.AuthorityKeyId) > 0 {
+ ret[n].Id = oidExtensionAuthorityKeyId
+ ret[n].Value, err = asn1.Marshal(authKeyId{template.AuthorityKeyId})
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if len(template.DNSNames) > 0 {
+ ret[n].Id = oidExtensionSubjectAltName
+ rawValues := make([]asn1.RawValue, len(template.DNSNames))
+ for i, name := range template.DNSNames {
+ rawValues[i] = asn1.RawValue{Tag: 2, Class: 2, Bytes: []byte(name)}
+ }
+ ret[n].Value, err = asn1.Marshal(rawValues)
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if len(template.PolicyIdentifiers) > 0 {
+ ret[n].Id = oidExtensionCertificatePolicies
+ policies := make([]policyInformation, len(template.PolicyIdentifiers))
+ for i, policy := range template.PolicyIdentifiers {
+ policies[i].Policy = policy
+ }
+ ret[n].Value, err = asn1.Marshal(policies)
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ if len(template.PermittedDNSDomains) > 0 {
+ ret[n].Id = oidExtensionNameConstraints
+ ret[n].Critical = template.PermittedDNSDomainsCritical
+
+ var out nameConstraints
+ out.Permitted = make([]generalSubtree, len(template.PermittedDNSDomains))
+ for i, permitted := range template.PermittedDNSDomains {
+ out.Permitted[i] = generalSubtree{Name: permitted}
+ }
+ ret[n].Value, err = asn1.Marshal(out)
+ if err != nil {
+ return
+ }
+ n++
+ }
+
+ // Adding another extension here? Remember to update the maximum number
+ // of elements in the make() at the top of the function.
+
+ return ret[0:n], nil
+}
+
+var (
+ oidSHA1WithRSA = []int{1, 2, 840, 113549, 1, 1, 5}
+ oidRSA = []int{1, 2, 840, 113549, 1, 1, 1}
+)
+
+// CreateSelfSignedCertificate creates a new certificate based on
+// a template. The following members of template are used: SerialNumber,
+// Subject, NotBefore, NotAfter, KeyUsage, BasicConstraintsValid, IsCA,
+// MaxPathLen, SubjectKeyId, DNSNames, PermittedDNSDomainsCritical,
+// PermittedDNSDomains.
+//
+// The certificate is signed by parent. If parent is equal to template then the
+// certificate is self-signed. The parameter pub is the public key of the
+// signee and priv is the private key of the signer.
+//
+// The returned slice is the certificate in DER encoding.
+func CreateCertificate(rand io.Reader, template, parent *Certificate, pub *rsa.PublicKey, priv *rsa.PrivateKey) (cert []byte, err os.Error) {
+ asn1PublicKey, err := asn1.Marshal(rsaPublicKey{
+ N: pub.N,
+ E: pub.E,
+ })
+ if err != nil {
+ return
+ }
+
+ if len(parent.SubjectKeyId) > 0 {
+ template.AuthorityKeyId = parent.SubjectKeyId
+ }
+
+ extensions, err := buildExtensions(template)
+ if err != nil {
+ return
+ }
+
+ encodedPublicKey := asn1.BitString{BitLength: len(asn1PublicKey) * 8, Bytes: asn1PublicKey}
+ c := tbsCertificate{
+ Version: 2,
+ SerialNumber: template.SerialNumber,
+ SignatureAlgorithm: pkix.AlgorithmIdentifier{Algorithm: oidSHA1WithRSA},
+ Issuer: parent.Subject.ToRDNSequence(),
+ Validity: validity{template.NotBefore, template.NotAfter},
+ Subject: template.Subject.ToRDNSequence(),
+ PublicKey: publicKeyInfo{nil, pkix.AlgorithmIdentifier{Algorithm: oidRSA}, encodedPublicKey},
+ Extensions: extensions,
+ }
+
+ tbsCertContents, err := asn1.Marshal(c)
+ if err != nil {
+ return
+ }
+
+ c.Raw = tbsCertContents
+
+ h := sha1.New()
+ h.Write(tbsCertContents)
+ digest := h.Sum()
+
+ signature, err := rsa.SignPKCS1v15(rand, priv, crypto.SHA1, digest)
+ if err != nil {
+ return
+ }
+
+ cert, err = asn1.Marshal(certificate{
+ nil,
+ c,
+ pkix.AlgorithmIdentifier{Algorithm: oidSHA1WithRSA},
+ asn1.BitString{Bytes: signature, BitLength: len(signature) * 8},
+ })
+ return
+}
+
+// pemCRLPrefix is the magic string that indicates that we have a PEM encoded
+// CRL.
+var pemCRLPrefix = []byte("-----BEGIN X509 CRL")
+// pemType is the type of a PEM encoded CRL.
+var pemType = "X509 CRL"
+
+// ParseCRL parses a CRL from the given bytes. It's often the case that PEM
+// encoded CRLs will appear where they should be DER encoded, so this function
+// will transparently handle PEM encoding as long as there isn't any leading
+// garbage.
+func ParseCRL(crlBytes []byte) (certList *pkix.CertificateList, err os.Error) {
+ if bytes.HasPrefix(crlBytes, pemCRLPrefix) {
+ block, _ := pem.Decode(crlBytes)
+ if block != nil && block.Type == pemType {
+ crlBytes = block.Bytes
+ }
+ }
+ return ParseDERCRL(crlBytes)
+}
+
+// ParseDERCRL parses a DER encoded CRL from the given bytes.
+func ParseDERCRL(derBytes []byte) (certList *pkix.CertificateList, err os.Error) {
+ certList = new(pkix.CertificateList)
+ _, err = asn1.Unmarshal(derBytes, certList)
+ if err != nil {
+ certList = nil
+ }
+ return
+}
+
+// CreateCRL returns a DER encoded CRL, signed by this Certificate, that
+// contains the given list of revoked certificates.
+func (c *Certificate) CreateCRL(rand io.Reader, priv *rsa.PrivateKey, revokedCerts []pkix.RevokedCertificate, now, expiry *time.Time) (crlBytes []byte, err os.Error) {
+ tbsCertList := pkix.TBSCertificateList{
+ Version: 2,
+ Signature: pkix.AlgorithmIdentifier{
+ Algorithm: oidSignatureSHA1WithRSA,
+ },
+ Issuer: c.Subject.ToRDNSequence(),
+ ThisUpdate: now,
+ NextUpdate: expiry,
+ RevokedCertificates: revokedCerts,
+ }
+
+ tbsCertListContents, err := asn1.Marshal(tbsCertList)
+ if err != nil {
+ return
+ }
+
+ h := sha1.New()
+ h.Write(tbsCertListContents)
+ digest := h.Sum()
+
+ signature, err := rsa.SignPKCS1v15(rand, priv, crypto.SHA1, digest)
+ if err != nil {
+ return
+ }
+
+ return asn1.Marshal(pkix.CertificateList{
+ TBSCertList: tbsCertList,
+ SignatureAlgorithm: pkix.AlgorithmIdentifier{
+ Algorithm: oidSignatureSHA1WithRSA,
+ },
+ SignatureValue: asn1.BitString{Bytes: signature, BitLength: len(signature) * 8},
+ })
+}
diff --git a/src/pkg/crypto/x509/x509_test.go b/src/pkg/crypto/x509/x509_test.go
new file mode 100644
index 000000000..dc216505e
--- /dev/null
+++ b/src/pkg/crypto/x509/x509_test.go
@@ -0,0 +1,431 @@
+// 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 (
+ "asn1"
+ "big"
+ "crypto/dsa"
+ "crypto/rand"
+ "crypto/rsa"
+ "crypto/x509/pkix"
+ "encoding/base64"
+ "encoding/hex"
+ "encoding/pem"
+ "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)
+ }
+}
+
+var pemPrivateKey = `-----BEGIN RSA PRIVATE KEY-----
+MIIBOgIBAAJBALKZD0nEffqM1ACuak0bijtqE2QrI/KLADv7l3kK3ppMyCuLKoF0
+fd7Ai2KW5ToIwzFofvJcS/STa6HA5gQenRUCAwEAAQJBAIq9amn00aS0h/CrjXqu
+/ThglAXJmZhOMPVn4eiu7/ROixi9sex436MaVeMqSNf7Ex9a8fRNfWss7Sqd9eWu
+RTUCIQDasvGASLqmjeffBNLTXV2A5g4t+kLVCpsEIZAycV5GswIhANEPLmax0ME/
+EO+ZJ79TJKN5yiGBRsv5yvx5UiHxajEXAiAhAol5N4EUyq6I9w1rYdhPMGpLfk7A
+IU2snfRJ6Nq2CQIgFrPsWRCkV+gOYcajD17rEqmuLrdIRexpg8N1DOSXoJ8CIGlS
+tAboUGBxTDq3ZroNism3DaMIbKPyYrAqhKov1h5V
+-----END RSA PRIVATE KEY-----
+`
+
+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("9353930466774385905609975137998169297361893554149986716853295022578535724979677252958524466350471210367835187480748268864277464700638583474144061408845077"),
+ E: 65537,
+ },
+ D: bigFromString("7266398431328116344057699379749222532279343923819063639497049039389899328538543087657733766554155839834519529439851673014800261285757759040931985506583861"),
+ Primes: []*big.Int{
+ bigFromString("98920366548084643601728869055592650835572950932266967461790948584315647051443"),
+ bigFromString("94560208308847015747498523884063394671606671904944666360068158221458669711639"),
+ },
+}
+
+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)
+ }
+}
+
+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", "www.example.com", true},
+ {"*.example.com", "xyz.www.example.com", false},
+ {"*.*.example.com", "xyz.www.example.com", true},
+ {"*.www.*.com", "xyz.www.example.com", true},
+}
+
+func TestMatchHostnames(t *testing.T) {
+ for i, test := range matchHostnamesTests {
+ r := matchHostnames(test.pattern, test.host)
+ if r != test.ok {
+ t.Errorf("#%d mismatch got: %t want: %t", i, r, test.ok)
+ }
+ }
+}
+
+func TestCertificateParse(t *testing.T) {
+ s, _ := hex.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)
+ }
+}
+
+var certBytes = "308203223082028ba00302010202106edf0d9499fd4533dd1297fc42a93be1300d06092a864886" +
+ "f70d0101050500304c310b3009060355040613025a4131253023060355040a131c546861777465" +
+ "20436f6e73756c74696e67202850747929204c74642e311630140603550403130d546861777465" +
+ "20534743204341301e170d3039303332353136343932395a170d3130303332353136343932395a" +
+ "3069310b3009060355040613025553311330110603550408130a43616c69666f726e6961311630" +
+ "140603550407130d4d6f756e7461696e205669657731133011060355040a130a476f6f676c6520" +
+ "496e63311830160603550403130f6d61696c2e676f6f676c652e636f6d30819f300d06092a8648" +
+ "86f70d010101050003818d0030818902818100c5d6f892fccaf5614b064149e80a2c9581a218ef" +
+ "41ec35bd7a58125ae76f9ea54ddc893abbeb029f6b73616bf0ffd868791fba7af9c4aebf3706ba" +
+ "3eeaeed27435b4ddcfb157c05f351d66aa87fee0de072d66d773affbd36ab78bef090e0cc861a9" +
+ "03ac90dd98b51c9c41566c017f0beec3bff391051ffba0f5cc6850ad2a590203010001a381e730" +
+ "81e430280603551d250421301f06082b0601050507030106082b06010505070302060960864801" +
+ "86f842040130360603551d1f042f302d302ba029a0278625687474703a2f2f63726c2e74686177" +
+ "74652e636f6d2f54686177746553474343412e63726c307206082b060105050701010466306430" +
+ "2206082b060105050730018616687474703a2f2f6f6373702e7468617774652e636f6d303e0608" +
+ "2b060105050730028632687474703a2f2f7777772e7468617774652e636f6d2f7265706f736974" +
+ "6f72792f5468617774655f5347435f43412e637274300c0603551d130101ff04023000300d0609" +
+ "2a864886f70d01010505000381810062f1f3050ebc105e497c7aedf87e24d2f4a986bb3b837bd1" +
+ "9b91ebcad98b065992f6bd2b49b7d6d3cb2e427a99d606c7b1d46352527fac39e6a8b6726de5bf" +
+ "70212a52cba07634a5e332011bd1868e78eb5e3c93cf03072276786f207494feaa0ed9d53b2110" +
+ "a76571f90209cdae884385c882587030ee15f33d761e2e45a6bc308203233082028ca003020102" +
+ "020430000002300d06092a864886f70d0101050500305f310b3009060355040613025553311730" +
+ "15060355040a130e566572695369676e2c20496e632e31373035060355040b132e436c61737320" +
+ "33205075626c6963205072696d6172792043657274696669636174696f6e20417574686f726974" +
+ "79301e170d3034303531333030303030305a170d3134303531323233353935395a304c310b3009" +
+ "060355040613025a4131253023060355040a131c54686177746520436f6e73756c74696e672028" +
+ "50747929204c74642e311630140603550403130d5468617774652053474320434130819f300d06" +
+ "092a864886f70d010101050003818d0030818902818100d4d367d08d157faecd31fe7d1d91a13f" +
+ "0b713cacccc864fb63fc324b0794bd6f80ba2fe10493c033fc093323e90b742b71c403c6d2cde2" +
+ "2ff50963cdff48a500bfe0e7f388b72d32de9836e60aad007bc4644a3b847503f270927d0e62f5" +
+ "21ab693684317590f8bfc76c881b06957cc9e5a8de75a12c7a68dfd5ca1c875860190203010001" +
+ "a381fe3081fb30120603551d130101ff040830060101ff020100300b0603551d0f040403020106" +
+ "301106096086480186f842010104040302010630280603551d110421301fa41d301b3119301706" +
+ "035504031310507269766174654c6162656c332d313530310603551d1f042a30283026a024a022" +
+ "8620687474703a2f2f63726c2e766572697369676e2e636f6d2f706361332e63726c303206082b" +
+ "0601050507010104263024302206082b060105050730018616687474703a2f2f6f6373702e7468" +
+ "617774652e636f6d30340603551d25042d302b06082b0601050507030106082b06010505070302" +
+ "06096086480186f8420401060a6086480186f845010801300d06092a864886f70d010105050003" +
+ "81810055ac63eadea1ddd2905f9f0bce76be13518f93d9052bc81b774bad6950a1eededcfddb07" +
+ "e9e83994dcab72792f06bfab8170c4a8edea5334edef1e53d906c7562bd15cf4d18a8eb42bb137" +
+ "9048084225c53e8acb7feb6f04d16dc574a2f7a27c7b603c77cd0ece48027f012fb69b37e02a2a" +
+ "36dcd585d6ace53f546f961e05af"
+
+func TestCreateSelfSignedCertificate(t *testing.T) {
+ random := rand.Reader
+
+ block, _ := pem.Decode([]byte(pemPrivateKey))
+ priv, err := ParsePKCS1PrivateKey(block.Bytes)
+ if err != nil {
+ t.Errorf("Failed to parse private key: %s", err)
+ return
+ }
+
+ template := Certificate{
+ SerialNumber: big.NewInt(1),
+ Subject: pkix.Name{
+ CommonName: "test.example.com",
+ Organization: []string{"Acme Co"},
+ },
+ NotBefore: time.SecondsToUTC(1000),
+ NotAfter: time.SecondsToUTC(100000),
+
+ SubjectKeyId: []byte{1, 2, 3, 4},
+ KeyUsage: KeyUsageCertSign,
+
+ BasicConstraintsValid: true,
+ IsCA: true,
+ DNSNames: []string{"test.example.com"},
+
+ PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}},
+ PermittedDNSDomains: []string{".example.com", "example.com"},
+ }
+
+ derBytes, err := CreateCertificate(random, &template, &template, &priv.PublicKey, priv)
+ if err != nil {
+ t.Errorf("Failed to create certificate: %s", err)
+ return
+ }
+
+ cert, err := ParseCertificate(derBytes)
+ if err != nil {
+ t.Errorf("Failed to parse certificate: %s", err)
+ return
+ }
+
+ if len(cert.PolicyIdentifiers) != 1 || !cert.PolicyIdentifiers[0].Equal(template.PolicyIdentifiers[0]) {
+ t.Errorf("Failed to parse policy identifiers: got:%#v want:%#v", cert.PolicyIdentifiers, template.PolicyIdentifiers)
+ }
+
+ if len(cert.PermittedDNSDomains) != 2 || cert.PermittedDNSDomains[0] != ".example.com" || cert.PermittedDNSDomains[1] != "example.com" {
+ t.Errorf("Failed to parse name constraints: %#v", cert.PermittedDNSDomains)
+ }
+
+ err = cert.CheckSignatureFrom(cert)
+ if err != nil {
+ t.Errorf("Signature verification failed: %s", err)
+ return
+ }
+}
+
+// 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("DSA Certificate verfication failed: %s", err)
+ }
+}
+
+const pemCertificate = `-----BEGIN CERTIFICATE-----
+MIIB5DCCAZCgAwIBAgIBATALBgkqhkiG9w0BAQUwLTEQMA4GA1UEChMHQWNtZSBDbzEZMBcGA1UE
+AxMQdGVzdC5leGFtcGxlLmNvbTAeFw03MDAxMDEwMDE2NDBaFw03MDAxMDIwMzQ2NDBaMC0xEDAO
+BgNVBAoTB0FjbWUgQ28xGTAXBgNVBAMTEHRlc3QuZXhhbXBsZS5jb20wWjALBgkqhkiG9w0BAQED
+SwAwSAJBALKZD0nEffqM1ACuak0bijtqE2QrI/KLADv7l3kK3ppMyCuLKoF0fd7Ai2KW5ToIwzFo
+fvJcS/STa6HA5gQenRUCAwEAAaOBnjCBmzAOBgNVHQ8BAf8EBAMCAAQwDwYDVR0TAQH/BAUwAwEB
+/zANBgNVHQ4EBgQEAQIDBDAPBgNVHSMECDAGgAQBAgMEMBsGA1UdEQQUMBKCEHRlc3QuZXhhbXBs
+ZS5jb20wDwYDVR0gBAgwBjAEBgIqAzAqBgNVHR4EIzAhoB8wDoIMLmV4YW1wbGUuY29tMA2CC2V4
+YW1wbGUuY29tMAsGCSqGSIb3DQEBBQNBAHKZKoS1wEQOGhgklx4+/yFYQlnqwKXvar/ZecQvJwui
+0seMQnwBhwdBkHfVIU2Fu5VUMRyxlf0ZNaDXcpU581k=
+-----END CERTIFICATE-----`
+
+func TestCRLCreation(t *testing.T) {
+ block, _ := pem.Decode([]byte(pemPrivateKey))
+ priv, _ := ParsePKCS1PrivateKey(block.Bytes)
+ block, _ = pem.Decode([]byte(pemCertificate))
+ cert, _ := ParseCertificate(block.Bytes)
+
+ now := time.SecondsToUTC(1000)
+ expiry := time.SecondsToUTC(10000)
+
+ revokedCerts := []pkix.RevokedCertificate{
+ {
+ SerialNumber: big.NewInt(1),
+ RevocationTime: now,
+ },
+ {
+ SerialNumber: big.NewInt(42),
+ RevocationTime: now,
+ },
+ }
+
+ crlBytes, err := cert.CreateCRL(rand.Reader, priv, revokedCerts, now, expiry)
+ if err != nil {
+ t.Errorf("error creating CRL: %s", err)
+ }
+
+ _, err = ParseDERCRL(crlBytes)
+ if err != nil {
+ t.Errorf("error reparsing CRL: %s", err)
+ }
+}
+
+func fromBase64(in string) []byte {
+ out := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
+ _, err := base64.StdEncoding.Decode(out, []byte(in))
+ if err != nil {
+ panic("failed to base64 decode")
+ }
+ return out
+}
+
+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(1302517272) {
+ t.Errorf("CRL has expired (but shouldn't have)")
+ }
+
+ // Can't check the signature here without a package cycle.
+}
+
+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(1302517272) {
+ t.Errorf("CRL has expired (but shouldn't have)")
+ }
+
+ // Can't check the signature here without a package cycle.
+}
+
+const derCRLBase64 = "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"
+
+const pemCRLBase64 = "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"
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-22 22:41:48 +0000