photon-beetle-hash.h File Reference

PHOTON-Beetle hash algorithm. More...

#include <stddef.h>

Go to the source code of this file.

Data Structures
union	photon_beetle_hash_state_t
	State information for the PHOTON-Beetle-HASH incremental mode. More...

Macros
#define	PHOTON_BEETLE_HASH_SIZE   32
	Size of the hash output for PHOTON-Beetle-HASH.

Functions
int	photon_beetle_hash (unsigned char *out, const unsigned char *in, size_t inlen)
	Hashes a block of input data with PHOTON-Beetle-HASH to generate a hash value. More...
void	photon_beetle_hash_init (photon_beetle_hash_state_t *state)
	Initializes the state for a Photon-Beetle-HASH hashing operation. More...
void	photon_beetle_hash_update (photon_beetle_hash_state_t *state, const unsigned char *in, size_t inlen)
	Updates a Photon-Beetle-HASH state with more input data. More...
void	photon_beetle_hash_finalize (photon_beetle_hash_state_t *state, unsigned char *out)
	Returns the final hash value from a Photon-Beetle-HASH hashing operation. More...

Detailed Description

PHOTON-Beetle hash algorithm.

PHOTON-Beetle-Hash has a 256-bit hash output. The initial data is handled as a 16 byte block, and then the remaining bytes are processed in 4 byte blocks.

References: https://www.isical.ac.in/~lightweight/beetle/

Function Documentation

int photon_beetle_hash	(	unsigned char *	out,
		const unsigned char *	in,
		size_t	inlen
	)

Hashes a block of input data with PHOTON-Beetle-HASH to generate a hash value.

Parameters

out	Buffer to receive the hash output which must be at least PHOTON_BEETLE_HASH_SIZE bytes in length.
in	Points to the input data to be hashed.
inlen	Length of the input data in bytes.

Returns

Returns zero on success or -1 if there was an error in the parameters.

See Also

photon_beetle_hash_init()

void photon_beetle_hash_finalize	(	photon_beetle_hash_state_t *	state,
		unsigned char *	out
	)

Returns the final hash value from a Photon-Beetle-HASH hashing operation.

Parameters

state	Hash state to be finalized.
out	Buffer to receive the hash output which must be at least PHOTON_BEETLE_HASH_SIZE bytes in length.

See Also

photon_beetle_hash_init(), photon_beetle_hash_update()

void photon_beetle_hash_init

(

photon_beetle_hash_state_t *

state

)

Initializes the state for a Photon-Beetle-HASH hashing operation.

Parameters

state

Hash state to be initialized.

See Also

photon_beetle_hash_update(), photon_beetle_hash_finalize(), photon_beetle_hash()

void photon_beetle_hash_update	(	photon_beetle_hash_state_t *	state,
		const unsigned char *	in,
		size_t	inlen
	)

Updates a Photon-Beetle-HASH state with more input data.

Parameters

state	Hash state to be updated.
in	Points to the input data to be incorporated into the state.
inlen	Length of the input data to be incorporated into the state.

See Also

photon_beetle_hash_init(), photon_beetle_hash_finalize()