IOTA::Crypto::Keccak384 Class Reference

#include <keccak384.hpp>

Public Member Functions
void	reset ()
void	absorb (const uint8_t *bytes, size_t size=hashBitLength/8)
void	squeeze (uint8_t *bytes)

Static Public Attributes
static constexpr unsigned int	rate = 832
static constexpr unsigned int	capacity = 768
static constexpr unsigned int	hashBitLength = 384
static constexpr unsigned int	delimitedSuffix = 0x01

Protected Member Functions
virtual bool	hashUpdate (const uint8_t *bytes, size_t size)
virtual bool	hashSqueeze (uint8_t *bytes)
virtual bool	hashInitialize (void)

Detailed Description

Keccak sponge construction with a 384 bits output.

Member Function Documentation

absorb()

void IOTA::Crypto::Keccak384::absorb	(	const uint8_t *	bytes,
		size_t	size = hashBitLength/8
	)

Absorb the given bytes into the internal state of the sponge.

Parameters

bytes	The bytes.
size	The number of bytes.

hashInitialize()

virtual bool IOTA::Crypto::Keccak384::hashInitialize ( void  )

protectedvirtual

Keccak_HashInitialize wrapper to allow mock testing.

Returns

The initialization status.

hashSqueeze()

virtual bool IOTA::Crypto::Keccak384::hashSqueeze ( uint8_t *  bytes )

protectedvirtual

Keccak_HashSqueeze wrapper to allow mock testing.

Parameters

bytes

Bytes where to squeeze out the internal state of the sponge.

Returns

The squeeze status.

hashUpdate()

virtual bool IOTA::Crypto::Keccak384::hashUpdate ( const uint8_t *  bytes, size_t  size  )

protectedvirtual

Keccak_HashUpdate wrapper to allow mock testing.

Parameters

bytes

Bytes to be absorbed into the internal state of the sponge.

Returns

The update status.

reset()

void IOTA::Crypto::Keccak384::reset

(

)

Reset internal state of the sponge.

squeeze()

void IOTA::Crypto::Keccak384::squeeze

(

uint8_t *

bytes

)

Squeeze out bytes from the internal state of the sponge into the given bytes.

Parameters

bytes

The bytes.

Member Data Documentation

capacity

constexpr unsigned int IOTA::Crypto::Keccak384::capacity = 768

static

The value of the capacity c (size of the part that is untouched by input/output).

delimitedSuffix

constexpr unsigned int IOTA::Crypto::Keccak384::delimitedSuffix = 0x01

static

Bits that will be automatically appended to the end of the input message, as in domain separation.

hashBitLength

constexpr unsigned int IOTA::Crypto::Keccak384::hashBitLength = 384

static

The desired number of output bits.

rate

constexpr unsigned int IOTA::Crypto::Keccak384::rate = 832

static

The value of the rate r (size of the part of the state that is written and read).

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The documentation for this class was generated from the following file:

• include/iota/crypto/keccak384.hpp