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
31
32
33
34
35
36
37
38
|
/* See LICENSE file for copyright and license details. */
#include "libkeccak.h"
#include <sys/stat.h>
#include <alloca.h>
#include <errno.h>
#include <unistd.h>
/* Use built in functions and branching optimisation if available */
#ifndef __GNUC__
# define __builtin_expect(expression, expect) expression
# define __builtin_memset(dest, c, n) memset(dest, c, n)
# define __builtin_memcpy(dest, src, n) memcpy(dest, src, n)
# define __builtin_memmove(dest, src, n) memmove(dest, src, n)
#endif
/**
* The outer pad pattern for HMAC
*/
#define HMAC_OUTER_PAD 0x5C
/**
* The inner pad pattern for HMAC
*/
#define HMAC_INNER_PAD 0x36
#ifdef NEED_EXPLICIT_BZERO
static void *(*volatile my_explicit_memset)(void *, int, size_t) = memset;
static __attribute__((__optimize__("-O0"))) void
my_explicit_bzero(void *ptr, size_t size)
{
(*my_explicit_memset)(ptr, 0, size);
}
#endif
|
