ebd76bf347
Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be> Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
42 строки
1.1 KiB
C
42 строки
1.1 KiB
C
/* $OpenBSD: chacha.h,v 1.3 2014/05/02 03:27:54 djm Exp $ */
|
|
|
|
/*
|
|
chacha-merged.c version 20080118
|
|
D. J. Bernstein
|
|
Public domain.
|
|
*/
|
|
|
|
#ifndef CHACHA_H
|
|
#define CHACHA_H
|
|
|
|
struct chacha_ctx {
|
|
uint32_t input[16];
|
|
};
|
|
|
|
#define CHACHA_MINKEYLEN 16
|
|
#define CHACHA_NONCELEN 8
|
|
#define CHACHA_CTRLEN 8
|
|
#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN)
|
|
#define CHACHA_BLOCKLEN 64
|
|
|
|
void chacha_keysetup(struct chacha_ctx *x, const uint8_t *k, uint32_t kbits)
|
|
#ifdef HAVE_GCC_BOUNDED_ATTRIBUTE
|
|
__attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN)))
|
|
#endif
|
|
;
|
|
void chacha_ivsetup(struct chacha_ctx *x, const uint8_t *iv, const uint8_t *ctr)
|
|
#ifdef HAVE_GCC_BOUNDED_ATTRIBUTE
|
|
__attribute__((__bounded__(__minbytes__, 2, CHACHA_NONCELEN)))
|
|
__attribute__((__bounded__(__minbytes__, 3, CHACHA_CTRLEN)))
|
|
#endif
|
|
;
|
|
void chacha_encrypt_bytes(struct chacha_ctx *x, const uint8_t *m,
|
|
uint8_t *c, uint32_t bytes)
|
|
#ifdef HAVE_GCC_BOUNDED_ATTRIBUTE
|
|
__attribute__((__bounded__(__buffer__, 2, 4)))
|
|
__attribute__((__bounded__(__buffer__, 3, 4)))
|
|
#endif
|
|
;
|
|
|
|
#endif /* CHACHA_H */
|