mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 15:38:51 +09:00
![Peter Tyser](/assets/img/avatar_default.png)
Now that the other architecture-specific lib directories have been moved out of the top-level directory there's not much reason to have the '_generic' suffix on the common lib directory. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
453 lines
10 KiB
C
453 lines
10 KiB
C
/*
|
|
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
|
|
* based on:
|
|
* FIPS-180-1 compliant SHA-1 implementation
|
|
*
|
|
* Copyright (C) 2003-2006 Christophe Devine
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License, version 2.1 as published by the Free Software Foundation.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
/*
|
|
* The SHA-1 standard was published by NIST in 1993.
|
|
*
|
|
* http://www.itl.nist.gov/fipspubs/fip180-1.htm
|
|
*/
|
|
|
|
#ifndef _CRT_SECURE_NO_DEPRECATE
|
|
#define _CRT_SECURE_NO_DEPRECATE 1
|
|
#endif
|
|
|
|
#ifndef USE_HOSTCC
|
|
#include <common.h>
|
|
#include <linux/string.h>
|
|
#else
|
|
#include <string.h>
|
|
#endif /* USE_HOSTCC */
|
|
#include <watchdog.h>
|
|
#include "sha1.h"
|
|
|
|
/*
|
|
* 32-bit integer manipulation macros (big endian)
|
|
*/
|
|
#ifndef GET_UINT32_BE
|
|
#define GET_UINT32_BE(n,b,i) { \
|
|
(n) = ( (unsigned long) (b)[(i) ] << 24 ) \
|
|
| ( (unsigned long) (b)[(i) + 1] << 16 ) \
|
|
| ( (unsigned long) (b)[(i) + 2] << 8 ) \
|
|
| ( (unsigned long) (b)[(i) + 3] ); \
|
|
}
|
|
#endif
|
|
#ifndef PUT_UINT32_BE
|
|
#define PUT_UINT32_BE(n,b,i) { \
|
|
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
|
|
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
|
|
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
|
|
(b)[(i) + 3] = (unsigned char) ( (n) ); \
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* SHA-1 context setup
|
|
*/
|
|
void sha1_starts (sha1_context * ctx)
|
|
{
|
|
ctx->total[0] = 0;
|
|
ctx->total[1] = 0;
|
|
|
|
ctx->state[0] = 0x67452301;
|
|
ctx->state[1] = 0xEFCDAB89;
|
|
ctx->state[2] = 0x98BADCFE;
|
|
ctx->state[3] = 0x10325476;
|
|
ctx->state[4] = 0xC3D2E1F0;
|
|
}
|
|
|
|
static void sha1_process (sha1_context * ctx, unsigned char data[64])
|
|
{
|
|
unsigned long temp, W[16], A, B, C, D, E;
|
|
|
|
GET_UINT32_BE (W[0], data, 0);
|
|
GET_UINT32_BE (W[1], data, 4);
|
|
GET_UINT32_BE (W[2], data, 8);
|
|
GET_UINT32_BE (W[3], data, 12);
|
|
GET_UINT32_BE (W[4], data, 16);
|
|
GET_UINT32_BE (W[5], data, 20);
|
|
GET_UINT32_BE (W[6], data, 24);
|
|
GET_UINT32_BE (W[7], data, 28);
|
|
GET_UINT32_BE (W[8], data, 32);
|
|
GET_UINT32_BE (W[9], data, 36);
|
|
GET_UINT32_BE (W[10], data, 40);
|
|
GET_UINT32_BE (W[11], data, 44);
|
|
GET_UINT32_BE (W[12], data, 48);
|
|
GET_UINT32_BE (W[13], data, 52);
|
|
GET_UINT32_BE (W[14], data, 56);
|
|
GET_UINT32_BE (W[15], data, 60);
|
|
|
|
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
|
|
|
|
#define R(t) ( \
|
|
temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ \
|
|
W[(t - 14) & 0x0F] ^ W[ t & 0x0F], \
|
|
( W[t & 0x0F] = S(temp,1) ) \
|
|
)
|
|
|
|
#define P(a,b,c,d,e,x) { \
|
|
e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
|
|
}
|
|
|
|
A = ctx->state[0];
|
|
B = ctx->state[1];
|
|
C = ctx->state[2];
|
|
D = ctx->state[3];
|
|
E = ctx->state[4];
|
|
|
|
#define F(x,y,z) (z ^ (x & (y ^ z)))
|
|
#define K 0x5A827999
|
|
|
|
P (A, B, C, D, E, W[0]);
|
|
P (E, A, B, C, D, W[1]);
|
|
P (D, E, A, B, C, W[2]);
|
|
P (C, D, E, A, B, W[3]);
|
|
P (B, C, D, E, A, W[4]);
|
|
P (A, B, C, D, E, W[5]);
|
|
P (E, A, B, C, D, W[6]);
|
|
P (D, E, A, B, C, W[7]);
|
|
P (C, D, E, A, B, W[8]);
|
|
P (B, C, D, E, A, W[9]);
|
|
P (A, B, C, D, E, W[10]);
|
|
P (E, A, B, C, D, W[11]);
|
|
P (D, E, A, B, C, W[12]);
|
|
P (C, D, E, A, B, W[13]);
|
|
P (B, C, D, E, A, W[14]);
|
|
P (A, B, C, D, E, W[15]);
|
|
P (E, A, B, C, D, R (16));
|
|
P (D, E, A, B, C, R (17));
|
|
P (C, D, E, A, B, R (18));
|
|
P (B, C, D, E, A, R (19));
|
|
|
|
#undef K
|
|
#undef F
|
|
|
|
#define F(x,y,z) (x ^ y ^ z)
|
|
#define K 0x6ED9EBA1
|
|
|
|
P (A, B, C, D, E, R (20));
|
|
P (E, A, B, C, D, R (21));
|
|
P (D, E, A, B, C, R (22));
|
|
P (C, D, E, A, B, R (23));
|
|
P (B, C, D, E, A, R (24));
|
|
P (A, B, C, D, E, R (25));
|
|
P (E, A, B, C, D, R (26));
|
|
P (D, E, A, B, C, R (27));
|
|
P (C, D, E, A, B, R (28));
|
|
P (B, C, D, E, A, R (29));
|
|
P (A, B, C, D, E, R (30));
|
|
P (E, A, B, C, D, R (31));
|
|
P (D, E, A, B, C, R (32));
|
|
P (C, D, E, A, B, R (33));
|
|
P (B, C, D, E, A, R (34));
|
|
P (A, B, C, D, E, R (35));
|
|
P (E, A, B, C, D, R (36));
|
|
P (D, E, A, B, C, R (37));
|
|
P (C, D, E, A, B, R (38));
|
|
P (B, C, D, E, A, R (39));
|
|
|
|
#undef K
|
|
#undef F
|
|
|
|
#define F(x,y,z) ((x & y) | (z & (x | y)))
|
|
#define K 0x8F1BBCDC
|
|
|
|
P (A, B, C, D, E, R (40));
|
|
P (E, A, B, C, D, R (41));
|
|
P (D, E, A, B, C, R (42));
|
|
P (C, D, E, A, B, R (43));
|
|
P (B, C, D, E, A, R (44));
|
|
P (A, B, C, D, E, R (45));
|
|
P (E, A, B, C, D, R (46));
|
|
P (D, E, A, B, C, R (47));
|
|
P (C, D, E, A, B, R (48));
|
|
P (B, C, D, E, A, R (49));
|
|
P (A, B, C, D, E, R (50));
|
|
P (E, A, B, C, D, R (51));
|
|
P (D, E, A, B, C, R (52));
|
|
P (C, D, E, A, B, R (53));
|
|
P (B, C, D, E, A, R (54));
|
|
P (A, B, C, D, E, R (55));
|
|
P (E, A, B, C, D, R (56));
|
|
P (D, E, A, B, C, R (57));
|
|
P (C, D, E, A, B, R (58));
|
|
P (B, C, D, E, A, R (59));
|
|
|
|
#undef K
|
|
#undef F
|
|
|
|
#define F(x,y,z) (x ^ y ^ z)
|
|
#define K 0xCA62C1D6
|
|
|
|
P (A, B, C, D, E, R (60));
|
|
P (E, A, B, C, D, R (61));
|
|
P (D, E, A, B, C, R (62));
|
|
P (C, D, E, A, B, R (63));
|
|
P (B, C, D, E, A, R (64));
|
|
P (A, B, C, D, E, R (65));
|
|
P (E, A, B, C, D, R (66));
|
|
P (D, E, A, B, C, R (67));
|
|
P (C, D, E, A, B, R (68));
|
|
P (B, C, D, E, A, R (69));
|
|
P (A, B, C, D, E, R (70));
|
|
P (E, A, B, C, D, R (71));
|
|
P (D, E, A, B, C, R (72));
|
|
P (C, D, E, A, B, R (73));
|
|
P (B, C, D, E, A, R (74));
|
|
P (A, B, C, D, E, R (75));
|
|
P (E, A, B, C, D, R (76));
|
|
P (D, E, A, B, C, R (77));
|
|
P (C, D, E, A, B, R (78));
|
|
P (B, C, D, E, A, R (79));
|
|
|
|
#undef K
|
|
#undef F
|
|
|
|
ctx->state[0] += A;
|
|
ctx->state[1] += B;
|
|
ctx->state[2] += C;
|
|
ctx->state[3] += D;
|
|
ctx->state[4] += E;
|
|
}
|
|
|
|
/*
|
|
* SHA-1 process buffer
|
|
*/
|
|
void sha1_update (sha1_context * ctx, unsigned char *input, int ilen)
|
|
{
|
|
int fill;
|
|
unsigned long left;
|
|
|
|
if (ilen <= 0)
|
|
return;
|
|
|
|
left = ctx->total[0] & 0x3F;
|
|
fill = 64 - left;
|
|
|
|
ctx->total[0] += ilen;
|
|
ctx->total[0] &= 0xFFFFFFFF;
|
|
|
|
if (ctx->total[0] < (unsigned long) ilen)
|
|
ctx->total[1]++;
|
|
|
|
if (left && ilen >= fill) {
|
|
memcpy ((void *) (ctx->buffer + left), (void *) input, fill);
|
|
sha1_process (ctx, ctx->buffer);
|
|
input += fill;
|
|
ilen -= fill;
|
|
left = 0;
|
|
}
|
|
|
|
while (ilen >= 64) {
|
|
sha1_process (ctx, input);
|
|
input += 64;
|
|
ilen -= 64;
|
|
}
|
|
|
|
if (ilen > 0) {
|
|
memcpy ((void *) (ctx->buffer + left), (void *) input, ilen);
|
|
}
|
|
}
|
|
|
|
static const unsigned char sha1_padding[64] = {
|
|
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
/*
|
|
* SHA-1 final digest
|
|
*/
|
|
void sha1_finish (sha1_context * ctx, unsigned char output[20])
|
|
{
|
|
unsigned long last, padn;
|
|
unsigned long high, low;
|
|
unsigned char msglen[8];
|
|
|
|
high = (ctx->total[0] >> 29)
|
|
| (ctx->total[1] << 3);
|
|
low = (ctx->total[0] << 3);
|
|
|
|
PUT_UINT32_BE (high, msglen, 0);
|
|
PUT_UINT32_BE (low, msglen, 4);
|
|
|
|
last = ctx->total[0] & 0x3F;
|
|
padn = (last < 56) ? (56 - last) : (120 - last);
|
|
|
|
sha1_update (ctx, (unsigned char *) sha1_padding, padn);
|
|
sha1_update (ctx, msglen, 8);
|
|
|
|
PUT_UINT32_BE (ctx->state[0], output, 0);
|
|
PUT_UINT32_BE (ctx->state[1], output, 4);
|
|
PUT_UINT32_BE (ctx->state[2], output, 8);
|
|
PUT_UINT32_BE (ctx->state[3], output, 12);
|
|
PUT_UINT32_BE (ctx->state[4], output, 16);
|
|
}
|
|
|
|
/*
|
|
* Output = SHA-1( input buffer )
|
|
*/
|
|
void sha1_csum (unsigned char *input, int ilen, unsigned char output[20])
|
|
{
|
|
sha1_context ctx;
|
|
|
|
sha1_starts (&ctx);
|
|
sha1_update (&ctx, input, ilen);
|
|
sha1_finish (&ctx, output);
|
|
}
|
|
|
|
/*
|
|
* Output = SHA-1( input buffer ). Trigger the watchdog every 'chunk_sz'
|
|
* bytes of input processed.
|
|
*/
|
|
void sha1_csum_wd (unsigned char *input, int ilen, unsigned char output[20],
|
|
unsigned int chunk_sz)
|
|
{
|
|
sha1_context ctx;
|
|
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
|
|
unsigned char *end, *curr;
|
|
int chunk;
|
|
#endif
|
|
|
|
sha1_starts (&ctx);
|
|
|
|
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
|
|
curr = input;
|
|
end = input + ilen;
|
|
while (curr < end) {
|
|
chunk = end - curr;
|
|
if (chunk > chunk_sz)
|
|
chunk = chunk_sz;
|
|
sha1_update (&ctx, curr, chunk);
|
|
curr += chunk;
|
|
WATCHDOG_RESET ();
|
|
}
|
|
#else
|
|
sha1_update (&ctx, input, ilen);
|
|
#endif
|
|
|
|
sha1_finish (&ctx, output);
|
|
}
|
|
|
|
/*
|
|
* Output = HMAC-SHA-1( input buffer, hmac key )
|
|
*/
|
|
void sha1_hmac (unsigned char *key, int keylen,
|
|
unsigned char *input, int ilen, unsigned char output[20])
|
|
{
|
|
int i;
|
|
sha1_context ctx;
|
|
unsigned char k_ipad[64];
|
|
unsigned char k_opad[64];
|
|
unsigned char tmpbuf[20];
|
|
|
|
memset (k_ipad, 0x36, 64);
|
|
memset (k_opad, 0x5C, 64);
|
|
|
|
for (i = 0; i < keylen; i++) {
|
|
if (i >= 64)
|
|
break;
|
|
|
|
k_ipad[i] ^= key[i];
|
|
k_opad[i] ^= key[i];
|
|
}
|
|
|
|
sha1_starts (&ctx);
|
|
sha1_update (&ctx, k_ipad, 64);
|
|
sha1_update (&ctx, input, ilen);
|
|
sha1_finish (&ctx, tmpbuf);
|
|
|
|
sha1_starts (&ctx);
|
|
sha1_update (&ctx, k_opad, 64);
|
|
sha1_update (&ctx, tmpbuf, 20);
|
|
sha1_finish (&ctx, output);
|
|
|
|
memset (k_ipad, 0, 64);
|
|
memset (k_opad, 0, 64);
|
|
memset (tmpbuf, 0, 20);
|
|
memset (&ctx, 0, sizeof (sha1_context));
|
|
}
|
|
|
|
static const char _sha1_src[] = "_sha1_src";
|
|
|
|
#ifdef SELF_TEST
|
|
/*
|
|
* FIPS-180-1 test vectors
|
|
*/
|
|
static const char sha1_test_str[3][57] = {
|
|
{"abc"},
|
|
{"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"},
|
|
{""}
|
|
};
|
|
|
|
static const unsigned char sha1_test_sum[3][20] = {
|
|
{0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
|
|
0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D},
|
|
{0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
|
|
0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1},
|
|
{0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
|
|
0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F}
|
|
};
|
|
|
|
/*
|
|
* Checkup routine
|
|
*/
|
|
int sha1_self_test (void)
|
|
{
|
|
int i, j;
|
|
unsigned char buf[1000];
|
|
unsigned char sha1sum[20];
|
|
sha1_context ctx;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
printf (" SHA-1 test #%d: ", i + 1);
|
|
|
|
sha1_starts (&ctx);
|
|
|
|
if (i < 2)
|
|
sha1_update (&ctx, (unsigned char *) sha1_test_str[i],
|
|
strlen (sha1_test_str[i]));
|
|
else {
|
|
memset (buf, 'a', 1000);
|
|
for (j = 0; j < 1000; j++)
|
|
sha1_update (&ctx, buf, 1000);
|
|
}
|
|
|
|
sha1_finish (&ctx, sha1sum);
|
|
|
|
if (memcmp (sha1sum, sha1_test_sum[i], 20) != 0) {
|
|
printf ("failed\n");
|
|
return (1);
|
|
}
|
|
|
|
printf ("passed\n");
|
|
}
|
|
|
|
printf ("\n");
|
|
return (0);
|
|
}
|
|
#else
|
|
int sha1_self_test (void)
|
|
{
|
|
return (0);
|
|
}
|
|
#endif
|