func New224() hash.Hash
New224 creates a new SHA3-224 hash. Its generic security strength is 224 bits against preimage attacks, and 112 bits against collision attacks.
func New256() hash.Hash
New256 creates a new SHA3-256 hash. Its generic security strength is 256 bits against preimage attacks, and 128 bits against collision attacks.
func New384() hash.Hash
New384 creates a new SHA3-384 hash. Its generic security strength is 384 bits against preimage attacks, and 192 bits against collision attacks.
func New512() hash.Hash
New512 creates a new SHA3-512 hash. Its generic security strength is 512 bits against preimage attacks, and 256 bits against collision attacks.
func NewLegacyKeccak256() hash.Hash
NewLegacyKeccak256 creates a new Keccak-256 hash.
Only use this function if you require compatibility with an existing cryptosystem that uses non-standard padding. All other users should use New256 instead.
func NewLegacyKeccak512() hash.Hash
NewLegacyKeccak512 creates a new Keccak-512 hash.
Only use this function if you require compatibility with an existing cryptosystem that uses non-standard padding. All other users should use New512 instead.
func ShakeSum128(hash, data []byte)
ShakeSum128 writes an arbitrary-length digest of data into hash.
func ShakeSum256(hash, data []byte)
ShakeSum256 writes an arbitrary-length digest of data into hash.
func Sum224(data []byte) (digest [28]byte)
Sum224 returns the SHA3-224 digest of the data.
func Sum256(data []byte) (digest [32]byte)
Sum256 returns the SHA3-256 digest of the data.
func Sum384(data []byte) (digest [48]byte)
Sum384 returns the SHA3-384 digest of the data.
func Sum512(data []byte) (digest [64]byte)
Sum512 returns the SHA3-512 digest of the data.
ShakeHash defines the interface to hash functions that support arbitrary-length output. When used as a plain hash.Hash, it produces minimum-length outputs that provide full-strength generic security.
type ShakeHash interface {
hash.Hash
// Read reads more output from the hash; reading affects the hash's
// state. (ShakeHash.Read is thus very different from Hash.Sum)
// It never returns an error, but subsequent calls to Write or Sum
// will panic.
io.Reader
// Clone returns a copy of the ShakeHash in its current state.
Clone() ShakeHash
}
func NewCShake128(N, S []byte) ShakeHash
NewCShake128 creates a new instance of cSHAKE128 variable-output-length ShakeHash, a customizable variant of SHAKE128. N is used to define functions based on cSHAKE, it can be empty when plain cSHAKE is desired. S is a customization byte string used for domain separation - two cSHAKE computations on same input with different S yield unrelated outputs. When N and S are both empty, this is equivalent to NewShake128.
func NewCShake256(N, S []byte) ShakeHash
NewCShake256 creates a new instance of cSHAKE256 variable-output-length ShakeHash, a customizable variant of SHAKE256. N is used to define functions based on cSHAKE, it can be empty when plain cSHAKE is desired. S is a customization byte string used for domain separation - two cSHAKE computations on same input with different S yield unrelated outputs. When N and S are both empty, this is equivalent to NewShake256.
func NewShake128() ShakeHash
NewShake128 creates a new SHAKE128 variable-output-length ShakeHash. Its generic security strength is 128 bits against all attacks if at least 32 bytes of its output are used.
func NewShake256() ShakeHash
NewShake256 creates a new SHAKE256 variable-output-length ShakeHash. Its generic security strength is 256 bits against all attacks if at least 64 bytes of its output are used.