Documentation ¶
Overview ¶
Package crypto collects common cryptographic constants.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func RegisterHash ¶
RegisterHash registers a function that returns a new instance of the given hash function. This is intended to be called from the init function in packages that implement hash functions.
Types ¶
type Decrypter ¶ added in go1.5
type Decrypter interface { // Public returns the public key corresponding to the opaque, // private key. Public() PublicKey // Decrypt decrypts msg. The opts argument should be appropriate for // the primitive used. See the documentation in each implementation for // details. Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error) }
Decrypter is an interface for an opaque private key that can be used for asymmetric decryption operations. An example would be an RSA key kept in a hardware module.
type DecrypterOpts ¶ added in go1.5
type DecrypterOpts interface{}
type Hash ¶
type Hash uint
Hash identifies a cryptographic hash function that is implemented in another package.
const ( MD4 Hash = 1 + iota // import golang.org/x/crypto/md4 MD5 // import crypto/md5 SHA1 // import crypto/sha1 SHA224 // import crypto/sha256 SHA256 // import crypto/sha256 SHA384 // import crypto/sha512 SHA512 // import crypto/sha512 MD5SHA1 // no implementation; MD5+SHA1 used for TLS RSA RIPEMD160 // import golang.org/x/crypto/ripemd160 SHA3_224 // import golang.org/x/crypto/sha3 SHA3_256 // import golang.org/x/crypto/sha3 SHA3_384 // import golang.org/x/crypto/sha3 SHA3_512 // import golang.org/x/crypto/sha3 SHA512_224 // import crypto/sha512 SHA512_256 // import crypto/sha512 )
func (Hash) Available ¶
Available reports whether the given hash function is linked into the binary.
func (Hash) HashFunc ¶ added in go1.4
HashFunc simply returns the value of h so that Hash implements SignerOpts.
type PrivateKey ¶
type PrivateKey interface{}
PrivateKey represents a private key using an unspecified algorithm.
type PublicKey ¶ added in go1.2
type PublicKey interface{}
PublicKey represents a public key using an unspecified algorithm.
type Signer ¶ added in go1.4
type Signer interface { // Public returns the public key corresponding to the opaque, // private key. Public() PublicKey // Sign signs digest with the private key, possibly using entropy from // rand. For an RSA key, the resulting signature should be either a // PKCS#1 v1.5 or PSS signature (as indicated by opts). For an (EC)DSA // key, it should be a DER-serialised, ASN.1 signature structure. // // Hash implements the SignerOpts interface and, in most cases, one can // simply pass in the hash function used as opts. Sign may also attempt // to type assert opts to other types in order to obtain algorithm // specific values. See the documentation in each package for details. // // Note that when a signature of a hash of a larger message is needed, // the caller is responsible for hashing the larger message and passing // the hash (as digest) and the hash function (as opts) to Sign. Sign(rand io.Reader, digest []byte, opts SignerOpts) (signature []byte, err error) }
Signer is an interface for an opaque private key that can be used for signing operations. For example, an RSA key kept in a hardware module.
type SignerOpts ¶ added in go1.4
type SignerOpts interface { // HashFunc returns an identifier for the hash function used to produce // the message passed to Signer.Sign, or else zero to indicate that no // hashing was done. HashFunc() Hash }
SignerOpts contains options for signing with a Signer.
Directories ¶
Path | Synopsis |
---|---|
Package aes implements AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197.
|
Package aes implements AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197. |
Package cipher implements standard block cipher modes that can be wrapped around low-level block cipher implementations.
|
Package cipher implements standard block cipher modes that can be wrapped around low-level block cipher implementations. |
Package des implements the Data Encryption Standard (DES) and the Triple Data Encryption Algorithm (TDEA) as defined in U.S. Federal Information Processing Standards Publication 46-3.
|
Package des implements the Data Encryption Standard (DES) and the Triple Data Encryption Algorithm (TDEA) as defined in U.S. Federal Information Processing Standards Publication 46-3. |
Package dsa implements the Digital Signature Algorithm, as defined in FIPS 186-3.
|
Package dsa implements the Digital Signature Algorithm, as defined in FIPS 186-3. |
Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-3.
|
Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-3. |
Package elliptic implements several standard elliptic curves over prime fields.
|
Package elliptic implements several standard elliptic curves over prime fields. |
Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198.
|
Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198. |
Package md5 implements the MD5 hash algorithm as defined in RFC 1321.
|
Package md5 implements the MD5 hash algorithm as defined in RFC 1321. |
Package rand implements a cryptographically secure pseudorandom number generator.
|
Package rand implements a cryptographically secure pseudorandom number generator. |
Package rc4 implements RC4 encryption, as defined in Bruce Schneier's Applied Cryptography.
|
Package rc4 implements RC4 encryption, as defined in Bruce Schneier's Applied Cryptography. |
Package rsa implements RSA encryption as specified in PKCS#1.
|
Package rsa implements RSA encryption as specified in PKCS#1. |
Package sha1 implements the SHA1 hash algorithm as defined in RFC 3174.
|
Package sha1 implements the SHA1 hash algorithm as defined in RFC 3174. |
Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
|
Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
Package sha512 implements the SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4.
|
Package sha512 implements the SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4. |
Package subtle implements functions that are often useful in cryptographic code but require careful thought to use correctly.
|
Package subtle implements functions that are often useful in cryptographic code but require careful thought to use correctly. |
Package tls partially implements TLS 1.2, as specified in RFC 5246.
|
Package tls partially implements TLS 1.2, as specified in RFC 5246. |
Package x509 parses X.509-encoded keys and certificates.
|
Package x509 parses X.509-encoded keys and certificates. |
pkix
Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP.
|
Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP. |