cipher

Documentation

Index

• func FromBlock(newCipher func(key []byte) (cipher.Block, error), newHash func() hash.Hash, ...) abstract.Cipher
• func FromSponge(sponge Sponge, key []byte, options ...interface{}) abstract.Cipher
• func FromStream(newStream func(key []byte) cipher.Stream, newHash func() hash.Hash, ...) abstract.Cipher
• func NewAEAD(c abstract.Cipher) cipher.AEAD
• func NewHash(cipher func(key []byte, options ...interface{}) abstract.Cipher, size int) hash.Hash
• type Block
• type Padding
  • func (p Padding) String() string
• type Sponge
• type Stream

Functions

func FromBlock

func FromBlock(newCipher func(key []byte) (cipher.Block, error),
	newHash func() hash.Hash, blockLen, keyLen, hashLen int,
	key []byte, options ...interface{}) abstract.Cipher

Construct a general message Cipher from a Block cipher and a cryptographic Hash.

func FromSponge

func FromSponge(sponge Sponge, key []byte, options ...interface{}) abstract.Cipher

SpongeCipher builds a general message Cipher from a Sponge function.

func FromStream

func FromStream(newStream func(key []byte) cipher.Stream,
	newHash func() hash.Hash, blockLen, keyLen, hashLen int,
	key []byte, options ...interface{}) abstract.Cipher

Construct a general message Cipher from a Stream cipher and a cryptographic Hash.

func NewAEAD

func NewAEAD(c abstract.Cipher) cipher.AEAD

Wrap an abstract message Cipher to implement the Authenticated Encryption with Associated Data (AEAD) interface.

func NewHash

func NewHash(cipher func(key []byte, options ...interface{}) abstract.Cipher, size int) hash.Hash

Types

type Block

type Block cipher.Block

type Padding

type Padding byte

Padding is an Option to configure the multi-rate padding byte to be used with a Sponge cipher.

func (Padding) String

func (p Padding) String() string

type Sponge

type Sponge interface {

	// XOR src data into sponge's internal state,
	// transform its state, and copy resulting state into dst.
	// Buffers must be either Rate or Rate+Capacity bytes long.
	Transform(dst, src []byte)

	// Return the number of data bytes the sponge can aborb in one block.
	Rate() int

	// Return the sponge's secret state capacity in bytes.
	Capacity() int

	// Create a copy of this Sponge with identical state
	Clone() Sponge
}

Sponge is an interface representing a primitive sponge function.

type Stream

type Stream cipher.Stream