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/* ISC license. */
/* SHA256 routines */
/* Written by David Madore (<URL: http://www.madore.org/~david/ >) */
/* Adapted by Laurent Bercot. */
/* This version last modified 2010-01-08 */
/* Note: these routines do not depend on endianness. */
#ifndef SHA256_H
#define SHA256_H
#include <skalibs/uint32.h>
typedef struct SHA256Schedule_s SHA256Schedule, *SHA256Schedule_ref ;
struct SHA256Schedule_s
{
uint32 buf[8] ; /* The eight chaining variables */
uint32 bits[2] ; /* Count number of message bits */
uint32 in[16] ; /* Data being fed in */
unsigned int b ; /* Our position within the 512 bits (always between 0 and 63) */
} ;
#define SHA256_INIT() { .buf = { 0x6a09e667UL, 0xbb67ae85UL, 0x3c6ef372UL, 0xa54ff53aUL, 0x510e527fUL, 0x9b05688cUL, 0x1f83d9abUL, 0x5be0cd19UL }, .bits = { 0, 0 }, .in = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, .b = 0 }
extern void sha256_init (SHA256Schedule *) ;
extern void sha256_update (SHA256Schedule *, char const *, unsigned int) ;
extern void sha256_final (SHA256Schedule *, char *digest) ;
#endif
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