Ascon-Hash256

Ascon-Hash is a cryptographic hash function designed for small devices. More...

Files
file	ocrypto_ascon_hash.h
	Ascon-Hash is a cryptographic hash function designed for small devices.

Macros
#define	ocrypto_ascon_hash256_BYTES   (32)

Functions
void	ocrypto_ascon_hash256 (uint8_t h[(32)], const uint8_t *in, size_t in_len)
void	ocrypto_ascon_xof128 (uint8_t *h, size_t h_len, const uint8_t *in, size_t in_len)
void	ocrypto_ascon_cxof128 (uint8_t *h, size_t h_len, const uint8_t *z, size_t z_len, const uint8_t *in, size_t in_len)

Incremental Ascon-Hash generator.
This group of functions can be used to incrementally compute the Ascon-Hash or Ascon-XOF hash for a given message.
void	ocrypto_ascon_hash256_init (ocrypto_ascon_hash_ctx *ctx)
void	ocrypto_ascon_xof128_init (ocrypto_ascon_hash_ctx *ctx)
void	ocrypto_ascon_cxof128_init (ocrypto_ascon_hash_ctx *ctx, const uint8_t *z, size_t z_len)
void	ocrypto_ascon_hash256_update (ocrypto_ascon_hash_ctx *ctx, const uint8_t *in, size_t in_len)
void	ocrypto_ascon_hash256_final (ocrypto_ascon_hash_ctx *ctx, uint8_t h[(32)])
void	ocrypto_ascon_xof128_final (ocrypto_ascon_hash_ctx *ctx, uint8_t *h, size_t h_len)
void	ocrypto_ascon_xof128_ext (ocrypto_ascon_hash_ctx *ctx, uint8_t *h, size_t h_len)

Detailed Description

Ascon-Hash is a cryptographic hash function designed for small devices.

A fixed- or variable-sized (XOF, CXOF) message digest is computed from variable length input data. The function is practically impossible to revert, and small changes in the input message lead to major changes in the message digest.

See also

NIST SP 800-232