1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/* 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 <sys/types.h>
#include <stdint.h>
typedef struct SHA256Schedule_s SHA256Schedule, *SHA256Schedule_ref ;
struct SHA256Schedule_s
{
uint32_t buf[8] ; /* The eight chaining variables */
uint32_t bits[2] ; /* Count number of message bits */
uint32_t in[16] ; /* Data being fed in */
unsigned int b ; /* Our position within the 512 bits (always between 0 and 63) */
} ;
#define SHA256_INIT() { .buf = { 0x6a09e667U, 0xbb67ae85U, 0x3c6ef372U, 0xa54ff53aU, 0x510e527fU, 0x9b05688cU, 0x1f83d9abU, 0x5be0cd19U }, .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 *, size_t) ;
extern void sha256_final (SHA256Schedule *, char *digest) ;
#endif
|
