avr-crypto-lib/serpent.h

25 lines
539 B
C

/* serpent.h
* a bitsliced implementation of the serpent cipher for avr microcontrollers
* author: Daniel Otte
* license: GPLv3
*/
#ifndef SERPENT_H_
#define SERPENT_H_
#include <stdint.h>
typedef uint32_t serpent_subkey_t[4];
typedef struct serpent_ctx_st {
serpent_subkey_t k[33];
} serpent_ctx_t;
/* key must be 256bit (32 byte) large! */
void serpent_genctx(void * key, serpent_ctx_t * ctx);
void serpent_enc(void * buffer, serpent_ctx_t * ctx);
void serpent_dec(void * buffer, serpent_ctx_t * ctx);
#endif /*SERPENT_H_*/