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Package x509

import "crypto/x509"
Overview
Index
Examples
Subdirectories

Overview ▾

Package x509 parses X.509-encoded keys and certificates.

Index ▾

Variables
func CreateCertificate(rand io.Reader, template, parent *Certificate, pub interface{}, priv interface{}) (cert []byte, err error)
func CreateCertificateRequest(rand io.Reader, template *CertificateRequest, priv interface{}) (csr []byte, err error)
func DecryptPEMBlock(b *pem.Block, password []byte) ([]byte, error)
func EncryptPEMBlock(rand io.Reader, blockType string, data, password []byte, alg PEMCipher) (*pem.Block, error)
func IsEncryptedPEMBlock(b *pem.Block) bool
func MarshalECPrivateKey(key *ecdsa.PrivateKey) ([]byte, error)
func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte
func MarshalPKIXPublicKey(pub interface{}) ([]byte, error)
func ParseCRL(crlBytes []byte) (certList *pkix.CertificateList, err error)
func ParseCertificates(asn1Data []byte) ([]*Certificate, error)
func ParseDERCRL(derBytes []byte) (certList *pkix.CertificateList, err error)
func ParseECPrivateKey(der []byte) (key *ecdsa.PrivateKey, err error)
func ParsePKCS1PrivateKey(der []byte) (key *rsa.PrivateKey, err error)
func ParsePKCS8PrivateKey(der []byte) (key interface{}, err error)
func ParsePKIXPublicKey(derBytes []byte) (pub interface{}, err error)
type CertPool
    func NewCertPool() *CertPool
    func (s *CertPool) AddCert(cert *Certificate)
    func (s *CertPool) AppendCertsFromPEM(pemCerts []byte) (ok bool)
    func (s *CertPool) Subjects() (res [][]byte)
type Certificate
    func ParseCertificate(asn1Data []byte) (*Certificate, error)
    func (c *Certificate) CheckCRLSignature(crl *pkix.CertificateList) (err error)
    func (c *Certificate) CheckSignature(algo SignatureAlgorithm, signed, signature []byte) (err error)
    func (c *Certificate) CheckSignatureFrom(parent *Certificate) (err error)
    func (c *Certificate) CreateCRL(rand io.Reader, priv interface{}, revokedCerts []pkix.RevokedCertificate, now, expiry time.Time) (crlBytes []byte, err error)
    func (c *Certificate) Equal(other *Certificate) bool
    func (c *Certificate) Verify(opts VerifyOptions) (chains [][]*Certificate, err error)
    func (c *Certificate) VerifyHostname(h string) error
type CertificateInvalidError
    func (e CertificateInvalidError) Error() string
type CertificateRequest
    func ParseCertificateRequest(asn1Data []byte) (*CertificateRequest, error)
type ConstraintViolationError
    func (ConstraintViolationError) Error() string
type ExtKeyUsage
type HostnameError
    func (h HostnameError) Error() string
type InvalidReason
type KeyUsage
type PEMCipher
type PublicKeyAlgorithm
type SignatureAlgorithm
type SystemRootsError
    func (SystemRootsError) Error() string
type UnhandledCriticalExtension
    func (h UnhandledCriticalExtension) Error() string
type UnknownAuthorityError
    func (e UnknownAuthorityError) Error() string
type VerifyOptions

Package files

cert_pool.go pem_decrypt.go pkcs1.go pkcs8.go root.go root_cgo_darwin.go root_darwin.go sec1.go verify.go x509.go

Variables

var ErrUnsupportedAlgorithm = errors.New("x509: cannot verify signature: algorithm unimplemented")

ErrUnsupportedAlgorithm results from attempting to perform an operation that involves algorithms that are not currently implemented.

var IncorrectPasswordError = errors.New("x509: decryption password incorrect")

IncorrectPasswordError is returned when an incorrect password is detected.

func CreateCertificate

func CreateCertificate(rand io.Reader, template, parent *Certificate, pub interface{}, priv interface{}) (cert []byte, err error)

CreateCertificate creates a new certificate based on a template. The following members of template are used: SerialNumber, Subject, NotBefore, NotAfter, KeyUsage, ExtKeyUsage, UnknownExtKeyUsage, BasicConstraintsValid, IsCA, MaxPathLen, SubjectKeyId, DNSNames, PermittedDNSDomainsCritical, PermittedDNSDomains, SignatureAlgorithm.

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.

The only supported key types are RSA and ECDSA (*rsa.PublicKey or *ecdsa.PublicKey for pub, *rsa.PrivateKey or *ecdsa.PrivateKey for priv).

func CreateCertificateRequest

func CreateCertificateRequest(rand io.Reader, template *CertificateRequest, priv interface{}) (csr []byte, err error)

CreateCertificateRequest creates a new certificate based on a template. The following members of template are used: Subject, Attributes, SignatureAlgorithm, Extensions, DNSNames, EmailAddresses, and IPAddresses. The private key is the private key of the signer.

The returned slice is the certificate request in DER encoding.

The only supported key types are RSA (*rsa.PrivateKey) and ECDSA (*ecdsa.PrivateKey).

func DecryptPEMBlock

func DecryptPEMBlock(b *pem.Block, password []byte) ([]byte, error)

DecryptPEMBlock takes a password encrypted PEM block and the password used to encrypt it and returns a slice of decrypted DER encoded bytes. It inspects the DEK-Info header to determine the algorithm used for decryption. If no DEK-Info header is present, an error is returned. If an incorrect password is detected an IncorrectPasswordError is returned.

func EncryptPEMBlock

func EncryptPEMBlock(rand io.Reader, blockType string, data, password []byte, alg PEMCipher) (*pem.Block, error)

EncryptPEMBlock returns a PEM block of the specified type holding the given DER-encoded data encrypted with the specified algorithm and password.

func IsEncryptedPEMBlock

func IsEncryptedPEMBlock(b *pem.Block) bool

IsEncryptedPEMBlock returns if the PEM block is password encrypted.

func MarshalECPrivateKey

func MarshalECPrivateKey(key *ecdsa.PrivateKey) ([]byte, error)

MarshalECPrivateKey marshals an EC private key into ASN.1, DER format.

func MarshalPKCS1PrivateKey

func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte

MarshalPKCS1PrivateKey converts a private key to ASN.1 DER encoded form.

func MarshalPKIXPublicKey

func MarshalPKIXPublicKey(pub interface{}) ([]byte, error)

MarshalPKIXPublicKey serialises a public key to DER-encoded PKIX format.

func ParseCRL

func ParseCRL(crlBytes []byte) (certList *pkix.CertificateList, err error)

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 ParseCertificates

func ParseCertificates(asn1Data []byte) ([]*Certificate, error)

ParseCertificates parses one or more certificates from the given ASN.1 DER data. The certificates must be concatenated with no intermediate padding.

func ParseDERCRL

func ParseDERCRL(derBytes []byte) (certList *pkix.CertificateList, err error)

ParseDERCRL parses a DER encoded CRL from the given bytes.

func ParseECPrivateKey

func ParseECPrivateKey(der []byte) (key *ecdsa.PrivateKey, err error)

ParseECPrivateKey parses an ASN.1 Elliptic Curve Private Key Structure.

func ParsePKCS1PrivateKey

func ParsePKCS1PrivateKey(der []byte) (key *rsa.PrivateKey, err error)

ParsePKCS1PrivateKey returns an RSA private key from its ASN.1 PKCS#1 DER encoded form.

func ParsePKCS8PrivateKey

func ParsePKCS8PrivateKey(der []byte) (key interface{}, err error)

ParsePKCS8PrivateKey parses an unencrypted, PKCS#8 private key. See http://www.rsa.com/rsalabs/node.asp?id=2130 and RFC5208.

func ParsePKIXPublicKey

func ParsePKIXPublicKey(derBytes []byte) (pub interface{}, err error)

ParsePKIXPublicKey parses a DER encoded public key. These values are typically found in PEM blocks with "BEGIN PUBLIC KEY".

type CertPool

type CertPool struct {
    // contains filtered or unexported fields
}

CertPool is a set of certificates.

func NewCertPool

func NewCertPool() *CertPool

NewCertPool returns a new, empty CertPool.

func (*CertPool) AddCert

func (s *CertPool) AddCert(cert *Certificate)

AddCert adds a certificate to a pool.

func (*CertPool) AppendCertsFromPEM

func (s *CertPool) AppendCertsFromPEM(pemCerts []byte) (ok bool)

AppendCertsFromPEM attempts to parse a series of PEM encoded 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 contain the system wide set of root CAs in a format suitable for this function.

func (*CertPool) Subjects

func (s *CertPool) Subjects() (res [][]byte)

Subjects returns a list of the DER-encoded subjects of all of the certificates in the pool.

type 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.
    RawSubject              []byte // DER encoded Subject
    RawIssuer               []byte // DER encoded Issuer

    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

    // Extensions contains raw X.509 extensions. When parsing certificates,
    // this can be used to extract non-critical extensions that are not
    // parsed by this package. When marshaling certificates, the Extensions
    // field is ignored, see ExtraExtensions.
    Extensions []pkix.Extension

    // ExtraExtensions contains extensions to be copied, raw, into any
    // marshaled certificates. Values override any extensions that would
    // otherwise be produced based on the other fields. The ExtraExtensions
    // field is not populated when parsing certificates, see Extensions.
    ExtraExtensions []pkix.Extension

    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
    // MaxPathLenZero indicates that BasicConstraintsValid==true and
    // MaxPathLen==0 should be interpreted as an actual maximum path length
    // of zero. Otherwise, that combination is interpreted as MaxPathLen
    // not being set.
    MaxPathLenZero bool

    SubjectKeyId   []byte
    AuthorityKeyId []byte

    // RFC 5280, 4.2.2.1 (Authority Information Access)
    OCSPServer            []string
    IssuingCertificateURL []string

    // Subject Alternate Name values
    DNSNames       []string
    EmailAddresses []string
    IPAddresses    []net.IP

    // Name constraints
    PermittedDNSDomainsCritical bool // if true then the name constraints are marked critical.
    PermittedDNSDomains         []string

    // CRL Distribution Points
    CRLDistributionPoints []string

    PolicyIdentifiers []asn1.ObjectIdentifier
}

A Certificate represents an X.509 certificate.

func ParseCertificate

func ParseCertificate(asn1Data []byte) (*Certificate, error)

ParseCertificate parses a single certificate from the given ASN.1 DER data.

func (*Certificate) CheckCRLSignature

func (c *Certificate) CheckCRLSignature(crl *pkix.CertificateList) (err error)

CheckCRLSignature checks that the signature in crl is from c.

func (*Certificate) CheckSignature

func (c *Certificate) CheckSignature(algo SignatureAlgorithm, signed, signature []byte) (err error)

CheckSignature verifies that signature is a valid signature over signed from c's public key.

func (*Certificate) CheckSignatureFrom

func (c *Certificate) CheckSignatureFrom(parent *Certificate) (err error)

CheckSignatureFrom verifies that the signature on c is a valid signature from parent.

func (*Certificate) CreateCRL

func (c *Certificate) CreateCRL(rand io.Reader, priv interface{}, revokedCerts []pkix.RevokedCertificate, now, expiry time.Time) (crlBytes []byte, err error)

CreateCRL returns a DER encoded CRL, signed by this Certificate, that contains the given list of revoked certificates.

The only supported key type is RSA (*rsa.PrivateKey for priv).

func (*Certificate) Equal

func (c *Certificate) Equal(other *Certificate) bool

func (*Certificate) Verify

func (c *Certificate) Verify(opts VerifyOptions) (chains [][]*Certificate, err error)

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 more chains where the first element of the chain is c and the last element is from opts.Roots.

If opts.Roots is nil and system roots are unavailable the returned error will be of type SystemRootsError.

WARNING: this doesn't do any revocation checking.

Example

Code:

// Verifying with a custom list of root certificates.

const rootPEM = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`

const certPEM = `
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----`

// First, create the set of root certificates. For this example we only
// have one. It's also possible to omit this in order to use the
// default root set of the current operating system.
roots := x509.NewCertPool()
ok := roots.AppendCertsFromPEM([]byte(rootPEM))
if !ok {
    panic("failed to parse root certificate")
}

block, _ := pem.Decode([]byte(certPEM))
if block == nil {
    panic("failed to parse certificate PEM")
}
cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
    panic("failed to parse certificate: " + err.Error())
}

opts := x509.VerifyOptions{
    DNSName: "mail.google.com",
    Roots:   roots,
}

if _, err := cert.Verify(opts); err != nil {
    panic("failed to verify certificate: " + err.Error())
}

func (*Certificate) VerifyHostname

func (c *Certificate) VerifyHostname(h string) error

VerifyHostname returns nil if c is a valid certificate for the named host. Otherwise it returns an error describing the mismatch.

type CertificateInvalidError

type CertificateInvalidError struct {
    Cert   *Certificate
    Reason InvalidReason
}

CertificateInvalidError results when an odd error occurs. Users of this library probably want to handle all these errors uniformly.

func (CertificateInvalidError) Error

func (e CertificateInvalidError) Error() string

type CertificateRequest

type CertificateRequest struct {
    Raw                      []byte // Complete ASN.1 DER content (CSR, signature algorithm and signature).
    RawTBSCertificateRequest []byte // Certificate request info part of raw ASN.1 DER content.
    RawSubjectPublicKeyInfo  []byte // DER encoded SubjectPublicKeyInfo.
    RawSubject               []byte // DER encoded Subject.

    Version            int
    Signature          []byte
    SignatureAlgorithm SignatureAlgorithm

    PublicKeyAlgorithm PublicKeyAlgorithm
    PublicKey          interface{}

    Subject pkix.Name

    // Attributes is a collection of attributes providing
    // additional information about the subject of the certificate.
    // See RFC 2986 section 4.1.
    Attributes []pkix.AttributeTypeAndValueSET

    // Extensions contains raw X.509 extensions. When parsing CSRs, this
    // can be used to extract extensions that are not parsed by this
    // package.
    Extensions []pkix.Extension

    // ExtraExtensions contains extensions to be copied, raw, into any
    // marshaled CSR. Values override any extensions that would otherwise
    // be produced based on the other fields but are overridden by any
    // extensions specified in Attributes.
    //
    // The ExtraExtensions field is not populated when parsing CSRs, see
    // Extensions.
    ExtraExtensions []pkix.Extension

    // Subject Alternate Name values.
    DNSNames       []string
    EmailAddresses []string
    IPAddresses    []net.IP
}

CertificateRequest represents a PKCS #10, certificate signature request.

func ParseCertificateRequest

func ParseCertificateRequest(asn1Data []byte) (*CertificateRequest, error)

ParseCertificateRequest parses a single certificate request from the given ASN.1 DER data.

type ConstraintViolationError

type ConstraintViolationError struct{}

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.

func (ConstraintViolationError) Error

func (ConstraintViolationError) Error() string

type ExtKeyUsage

type ExtKeyUsage int

ExtKeyUsage represents an extended set of actions that are valid for a given key. Each of the ExtKeyUsage* constants define a unique action.

const (
    ExtKeyUsageAny ExtKeyUsage = iota
    ExtKeyUsageServerAuth
    ExtKeyUsageClientAuth
    ExtKeyUsageCodeSigning
    ExtKeyUsageEmailProtection
    ExtKeyUsageIPSECEndSystem
    ExtKeyUsageIPSECTunnel
    ExtKeyUsageIPSECUser
    ExtKeyUsageTimeStamping
    ExtKeyUsageOCSPSigning
    ExtKeyUsageMicrosoftServerGatedCrypto
    ExtKeyUsageNetscapeServerGatedCrypto
)

type HostnameError

type HostnameError struct {
    Certificate *Certificate
    Host        string
}

HostnameError results when the set of authorized names doesn't match the requested name.

func (HostnameError) Error

func (h HostnameError) Error() string

type InvalidReason

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
    // TooManyIntermediates results when a path length constraint is
    // violated.
    TooManyIntermediates
    // IncompatibleUsage results when the certificate's key usage indicates
    // that it may only be used for a different purpose.
    IncompatibleUsage
)

type KeyUsage

type KeyUsage int

KeyUsage represents the set of actions that are valid for a given key. It's a bitmap of the KeyUsage* constants.

const (
    KeyUsageDigitalSignature KeyUsage = 1 << iota
    KeyUsageContentCommitment
    KeyUsageKeyEncipherment
    KeyUsageDataEncipherment
    KeyUsageKeyAgreement
    KeyUsageCertSign
    KeyUsageCRLSign
    KeyUsageEncipherOnly
    KeyUsageDecipherOnly
)

type PEMCipher

type PEMCipher int
const (
    PEMCipherDES PEMCipher
    PEMCipher3DES
    PEMCipherAES128
    PEMCipherAES192
    PEMCipherAES256
)

Possible values for the EncryptPEMBlock encryption algorithm.

type PublicKeyAlgorithm

type PublicKeyAlgorithm int
const (
    UnknownPublicKeyAlgorithm PublicKeyAlgorithm = iota
    RSA
    DSA
    ECDSA
)

type SignatureAlgorithm

type SignatureAlgorithm int
const (
    UnknownSignatureAlgorithm SignatureAlgorithm = iota
    MD2WithRSA
    MD5WithRSA
    SHA1WithRSA
    SHA256WithRSA
    SHA384WithRSA
    SHA512WithRSA
    DSAWithSHA1
    DSAWithSHA256
    ECDSAWithSHA1
    ECDSAWithSHA256
    ECDSAWithSHA384
    ECDSAWithSHA512
)

type SystemRootsError

type SystemRootsError struct{}

SystemRootsError results when we fail to load the system root certificates.

func (SystemRootsError) Error

func (SystemRootsError) Error() string

type UnhandledCriticalExtension

type UnhandledCriticalExtension struct{}

func (UnhandledCriticalExtension) Error

func (h UnhandledCriticalExtension) Error() string

type UnknownAuthorityError

type UnknownAuthorityError struct {
    // contains filtered or unexported fields
}

UnknownAuthorityError results when the certificate issuer is unknown

func (UnknownAuthorityError) Error

func (e UnknownAuthorityError) Error() string

type VerifyOptions

type VerifyOptions struct {
    DNSName       string
    Intermediates *CertPool
    Roots         *CertPool // if nil, the system roots are used
    CurrentTime   time.Time // if zero, the current time is used
    // KeyUsage specifies which Extended Key Usage values are acceptable.
    // An empty list means ExtKeyUsageServerAuth. Key usage is considered a
    // constraint down the chain which mirrors Windows CryptoAPI behaviour,
    // but not the spec. To accept any key usage, include ExtKeyUsageAny.
    KeyUsages []ExtKeyUsage
}

VerifyOptions contains parameters for Certificate.Verify. It's a structure because other PKIX verification APIs have ended up needing many options.

Subdirectories

Name Synopsis
..
pkix Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP.