Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Francesco Albanese <Francesco.Albanese@swisscom.com>master
parent
3bab76a26e
commit
b571afde02
@ -0,0 +1,16 @@ |
||||
#ifndef _SHA256_H |
||||
#define _SHA256_H |
||||
|
||||
#define SHA256_SUM_LEN 32 |
||||
|
||||
typedef struct { |
||||
uint32_t total[2]; |
||||
uint32_t state[8]; |
||||
uint8_t buffer[64]; |
||||
} sha256_context; |
||||
|
||||
void sha256_starts(sha256_context * ctx); |
||||
void sha256_update(sha256_context * ctx, uint8_t * input, uint32_t length); |
||||
void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]); |
||||
|
||||
#endif /* _SHA256_H */ |
@ -0,0 +1,262 @@ |
||||
/*
|
||||
* FIPS-180-2 compliant SHA-256 implementation |
||||
* |
||||
* Copyright (C) 2001-2003 Christophe Devine |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License as published by |
||||
* the Free Software Foundation; either version 2 of the License, or |
||||
* (at your option) any later version. |
||||
* |
||||
* This program 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 General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef USE_HOSTCC |
||||
#include <common.h> |
||||
#endif /* USE_HOSTCC */ |
||||
#include <watchdog.h> |
||||
#include <linux/string.h> |
||||
#include <sha256.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 |
||||
|
||||
void sha256_starts(sha256_context * ctx) |
||||
{ |
||||
ctx->total[0] = 0; |
||||
ctx->total[1] = 0; |
||||
|
||||
ctx->state[0] = 0x6A09E667; |
||||
ctx->state[1] = 0xBB67AE85; |
||||
ctx->state[2] = 0x3C6EF372; |
||||
ctx->state[3] = 0xA54FF53A; |
||||
ctx->state[4] = 0x510E527F; |
||||
ctx->state[5] = 0x9B05688C; |
||||
ctx->state[6] = 0x1F83D9AB; |
||||
ctx->state[7] = 0x5BE0CD19; |
||||
} |
||||
|
||||
void sha256_process(sha256_context * ctx, uint8_t data[64]) |
||||
{ |
||||
uint32_t temp1, temp2; |
||||
uint32_t W[64]; |
||||
uint32_t A, B, C, D, E, F, G, H; |
||||
|
||||
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 SHR(x,n) ((x & 0xFFFFFFFF) >> n) |
||||
#define ROTR(x,n) (SHR(x,n) | (x << (32 - n))) |
||||
|
||||
#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3)) |
||||
#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10)) |
||||
|
||||
#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22)) |
||||
#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25)) |
||||
|
||||
#define F0(x,y,z) ((x & y) | (z & (x | y))) |
||||
#define F1(x,y,z) (z ^ (x & (y ^ z))) |
||||
|
||||
#define R(t) \ |
||||
( \
|
||||
W[t] = S1(W[t - 2]) + W[t - 7] + \
|
||||
S0(W[t - 15]) + W[t - 16] \
|
||||
) |
||||
|
||||
#define P(a,b,c,d,e,f,g,h,x,K) { \ |
||||
temp1 = h + S3(e) + F1(e,f,g) + K + x; \
|
||||
temp2 = S2(a) + F0(a,b,c); \
|
||||
d += temp1; h = temp1 + temp2; \
|
||||
} |
||||
|
||||
A = ctx->state[0]; |
||||
B = ctx->state[1]; |
||||
C = ctx->state[2]; |
||||
D = ctx->state[3]; |
||||
E = ctx->state[4]; |
||||
F = ctx->state[5]; |
||||
G = ctx->state[6]; |
||||
H = ctx->state[7]; |
||||
|
||||
P(A, B, C, D, E, F, G, H, W[0], 0x428A2F98); |
||||
P(H, A, B, C, D, E, F, G, W[1], 0x71374491); |
||||
P(G, H, A, B, C, D, E, F, W[2], 0xB5C0FBCF); |
||||
P(F, G, H, A, B, C, D, E, W[3], 0xE9B5DBA5); |
||||
P(E, F, G, H, A, B, C, D, W[4], 0x3956C25B); |
||||
P(D, E, F, G, H, A, B, C, W[5], 0x59F111F1); |
||||
P(C, D, E, F, G, H, A, B, W[6], 0x923F82A4); |
||||
P(B, C, D, E, F, G, H, A, W[7], 0xAB1C5ED5); |
||||
P(A, B, C, D, E, F, G, H, W[8], 0xD807AA98); |
||||
P(H, A, B, C, D, E, F, G, W[9], 0x12835B01); |
||||
P(G, H, A, B, C, D, E, F, W[10], 0x243185BE); |
||||
P(F, G, H, A, B, C, D, E, W[11], 0x550C7DC3); |
||||
P(E, F, G, H, A, B, C, D, W[12], 0x72BE5D74); |
||||
P(D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE); |
||||
P(C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7); |
||||
P(B, C, D, E, F, G, H, A, W[15], 0xC19BF174); |
||||
P(A, B, C, D, E, F, G, H, R(16), 0xE49B69C1); |
||||
P(H, A, B, C, D, E, F, G, R(17), 0xEFBE4786); |
||||
P(G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6); |
||||
P(F, G, H, A, B, C, D, E, R(19), 0x240CA1CC); |
||||
P(E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F); |
||||
P(D, E, F, G, H, A, B, C, R(21), 0x4A7484AA); |
||||
P(C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC); |
||||
P(B, C, D, E, F, G, H, A, R(23), 0x76F988DA); |
||||
P(A, B, C, D, E, F, G, H, R(24), 0x983E5152); |
||||
P(H, A, B, C, D, E, F, G, R(25), 0xA831C66D); |
||||
P(G, H, A, B, C, D, E, F, R(26), 0xB00327C8); |
||||
P(F, G, H, A, B, C, D, E, R(27), 0xBF597FC7); |
||||
P(E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3); |
||||
P(D, E, F, G, H, A, B, C, R(29), 0xD5A79147); |
||||
P(C, D, E, F, G, H, A, B, R(30), 0x06CA6351); |
||||
P(B, C, D, E, F, G, H, A, R(31), 0x14292967); |
||||
P(A, B, C, D, E, F, G, H, R(32), 0x27B70A85); |
||||
P(H, A, B, C, D, E, F, G, R(33), 0x2E1B2138); |
||||
P(G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC); |
||||
P(F, G, H, A, B, C, D, E, R(35), 0x53380D13); |
||||
P(E, F, G, H, A, B, C, D, R(36), 0x650A7354); |
||||
P(D, E, F, G, H, A, B, C, R(37), 0x766A0ABB); |
||||
P(C, D, E, F, G, H, A, B, R(38), 0x81C2C92E); |
||||
P(B, C, D, E, F, G, H, A, R(39), 0x92722C85); |
||||
P(A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1); |
||||
P(H, A, B, C, D, E, F, G, R(41), 0xA81A664B); |
||||
P(G, H, A, B, C, D, E, F, R(42), 0xC24B8B70); |
||||
P(F, G, H, A, B, C, D, E, R(43), 0xC76C51A3); |
||||
P(E, F, G, H, A, B, C, D, R(44), 0xD192E819); |
||||
P(D, E, F, G, H, A, B, C, R(45), 0xD6990624); |
||||
P(C, D, E, F, G, H, A, B, R(46), 0xF40E3585); |
||||
P(B, C, D, E, F, G, H, A, R(47), 0x106AA070); |
||||
P(A, B, C, D, E, F, G, H, R(48), 0x19A4C116); |
||||
P(H, A, B, C, D, E, F, G, R(49), 0x1E376C08); |
||||
P(G, H, A, B, C, D, E, F, R(50), 0x2748774C); |
||||
P(F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5); |
||||
P(E, F, G, H, A, B, C, D, R(52), 0x391C0CB3); |
||||
P(D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A); |
||||
P(C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F); |
||||
P(B, C, D, E, F, G, H, A, R(55), 0x682E6FF3); |
||||
P(A, B, C, D, E, F, G, H, R(56), 0x748F82EE); |
||||
P(H, A, B, C, D, E, F, G, R(57), 0x78A5636F); |
||||
P(G, H, A, B, C, D, E, F, R(58), 0x84C87814); |
||||
P(F, G, H, A, B, C, D, E, R(59), 0x8CC70208); |
||||
P(E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA); |
||||
P(D, E, F, G, H, A, B, C, R(61), 0xA4506CEB); |
||||
P(C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7); |
||||
P(B, C, D, E, F, G, H, A, R(63), 0xC67178F2); |
||||
|
||||
ctx->state[0] += A; |
||||
ctx->state[1] += B; |
||||
ctx->state[2] += C; |
||||
ctx->state[3] += D; |
||||
ctx->state[4] += E; |
||||
ctx->state[5] += F; |
||||
ctx->state[6] += G; |
||||
ctx->state[7] += H; |
||||
} |
||||
|
||||
void sha256_update(sha256_context * ctx, uint8_t * input, uint32_t length) |
||||
{ |
||||
uint32_t left, fill; |
||||
|
||||
if (!length) |
||||
return; |
||||
|
||||
left = ctx->total[0] & 0x3F; |
||||
fill = 64 - left; |
||||
|
||||
ctx->total[0] += length; |
||||
ctx->total[0] &= 0xFFFFFFFF; |
||||
|
||||
if (ctx->total[0] < length) |
||||
ctx->total[1]++; |
||||
|
||||
if (left && length >= fill) { |
||||
memcpy((void *) (ctx->buffer + left), (void *) input, fill); |
||||
sha256_process(ctx, ctx->buffer); |
||||
length -= fill; |
||||
input += fill; |
||||
left = 0; |
||||
} |
||||
|
||||
while (length >= 64) { |
||||
sha256_process(ctx, input); |
||||
length -= 64; |
||||
input += 64; |
||||
} |
||||
|
||||
if (length) |
||||
memcpy((void *) (ctx->buffer + left), (void *) input, length); |
||||
} |
||||
|
||||
static uint8_t sha256_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 |
||||
}; |
||||
|
||||
void sha256_finish(sha256_context * ctx, uint8_t digest[32]) |
||||
{ |
||||
uint32_t last, padn; |
||||
uint32_t high, low; |
||||
uint8_t 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); |
||||
|
||||
sha256_update(ctx, sha256_padding, padn); |
||||
sha256_update(ctx, msglen, 8); |
||||
|
||||
PUT_UINT32_BE(ctx->state[0], digest, 0); |
||||
PUT_UINT32_BE(ctx->state[1], digest, 4); |
||||
PUT_UINT32_BE(ctx->state[2], digest, 8); |
||||
PUT_UINT32_BE(ctx->state[3], digest, 12); |
||||
PUT_UINT32_BE(ctx->state[4], digest, 16); |
||||
PUT_UINT32_BE(ctx->state[5], digest, 20); |
||||
PUT_UINT32_BE(ctx->state[6], digest, 24); |
||||
PUT_UINT32_BE(ctx->state[7], digest, 28); |
||||
} |
Loading…
Reference in new issue