GoThrough - package:golang.org/x/crypto/blake2s

blake2s.BlockSize

// The blocksize of BLAKE2s in bytes.
const BlockSize = 64

blake2s.OutputLengthUnknown

// OutputLengthUnknown can be used as the size argument to NewXOF to indicate
// the length of the output is not known in advance.
const OutputLengthUnknown = 0

blake2s.Size

// The hash size of BLAKE2s-256 in bytes.
const Size = 32

blake2s.Size128

// The hash size of BLAKE2s-128 in bytes.
const Size128 = 16

blake2s.XOF

// XOF defines the interface to hash functions that
// support arbitrary-length output.
type XOF interface {
	// Write absorbs more data into the hash's state. It panics if called
	// after Read.
	io.Writer

	// Read reads more output from the hash. It returns io.EOF if the limit
	// has been reached.
	io.Reader

	// Clone returns a copy of the XOF in its current state.
	Clone() XOF

	// Reset resets the XOF to its initial state.
	Reset()
}

blake2s.New128

// New128 returns a new hash.Hash computing the BLAKE2s-128 checksum given a
// non-empty key. Note that a 128-bit digest is too small to be secure as a
// cryptographic hash and should only be used as a MAC, thus the key argument
// is not optional.
func New128(key []byte) (hash.Hash, error)

blake2s.New256

// New256 returns a new hash.Hash computing the BLAKE2s-256 checksum. A non-nil
// key turns the hash into a MAC. The key must between zero and 32 bytes long.
// When the key is nil, the returned hash.Hash implements BinaryMarshaler
// and BinaryUnmarshaler for state (de)serialization as documented by hash.Hash.
func New256(key []byte) (hash.Hash, error)

blake2s.NewXOF

// NewXOF creates a new variable-output-length hash. The hash either produce a
// known number of bytes (1 <= size < 65535), or an unknown number of bytes
// (size == OutputLengthUnknown). In the latter case, an absolute limit of
// 128GiB applies.
// 
// A non-nil key turns the hash into a MAC. The key must between
// zero and 32 bytes long.
func NewXOF(size uint16, key []byte) (XOF, error)

blake2s.Sum256

// Sum256 returns the BLAKE2s-256 checksum of the data.
func Sum256(data []byte) [Size]byte