2 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4 * FIPS-180-1 compliant SHA-1 implementation
6 * Copyright (C) 2003-2006 Christophe Devine
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License, version 2.1 as published by the Free Software Foundation.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
23 * The SHA-1 standard was published by NIST in 1993.
25 * http://www.itl.nist.gov/fipspubs/fip180-1.htm
28 #ifndef _CRT_SECURE_NO_DEPRECATE
29 #define _CRT_SECURE_NO_DEPRECATE 1
32 #include <linux/string.h>
36 * 32-bit integer manipulation macros (big endian)
39 #define GET_UINT32_BE(n,b,i) { \
40 (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
41 | ( (unsigned long) (b)[(i) + 1] << 16 ) \
42 | ( (unsigned long) (b)[(i) + 2] << 8 ) \
43 | ( (unsigned long) (b)[(i) + 3] ); \
47 #define PUT_UINT32_BE(n,b,i) { \
48 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
49 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
50 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
51 (b)[(i) + 3] = (unsigned char) ( (n) ); \
58 void sha1_starts (sha1_context * ctx)
63 ctx->state[0] = 0x67452301;
64 ctx->state[1] = 0xEFCDAB89;
65 ctx->state[2] = 0x98BADCFE;
66 ctx->state[3] = 0x10325476;
67 ctx->state[4] = 0xC3D2E1F0;
70 static void sha1_process (sha1_context * ctx, unsigned char data[64])
72 unsigned long temp, W[16], A, B, C, D, E;
74 GET_UINT32_BE (W[0], data, 0);
75 GET_UINT32_BE (W[1], data, 4);
76 GET_UINT32_BE (W[2], data, 8);
77 GET_UINT32_BE (W[3], data, 12);
78 GET_UINT32_BE (W[4], data, 16);
79 GET_UINT32_BE (W[5], data, 20);
80 GET_UINT32_BE (W[6], data, 24);
81 GET_UINT32_BE (W[7], data, 28);
82 GET_UINT32_BE (W[8], data, 32);
83 GET_UINT32_BE (W[9], data, 36);
84 GET_UINT32_BE (W[10], data, 40);
85 GET_UINT32_BE (W[11], data, 44);
86 GET_UINT32_BE (W[12], data, 48);
87 GET_UINT32_BE (W[13], data, 52);
88 GET_UINT32_BE (W[14], data, 56);
89 GET_UINT32_BE (W[15], data, 60);
91 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
94 temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ \
95 W[(t - 14) & 0x0F] ^ W[ t & 0x0F], \
96 ( W[t & 0x0F] = S(temp,1) ) \
99 #define P(a,b,c,d,e,x) { \
100 e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
109 #define F(x,y,z) (z ^ (x & (y ^ z)))
112 P (A, B, C, D, E, W[0]);
113 P (E, A, B, C, D, W[1]);
114 P (D, E, A, B, C, W[2]);
115 P (C, D, E, A, B, W[3]);
116 P (B, C, D, E, A, W[4]);
117 P (A, B, C, D, E, W[5]);
118 P (E, A, B, C, D, W[6]);
119 P (D, E, A, B, C, W[7]);
120 P (C, D, E, A, B, W[8]);
121 P (B, C, D, E, A, W[9]);
122 P (A, B, C, D, E, W[10]);
123 P (E, A, B, C, D, W[11]);
124 P (D, E, A, B, C, W[12]);
125 P (C, D, E, A, B, W[13]);
126 P (B, C, D, E, A, W[14]);
127 P (A, B, C, D, E, W[15]);
128 P (E, A, B, C, D, R (16));
129 P (D, E, A, B, C, R (17));
130 P (C, D, E, A, B, R (18));
131 P (B, C, D, E, A, R (19));
136 #define F(x,y,z) (x ^ y ^ z)
139 P (A, B, C, D, E, R (20));
140 P (E, A, B, C, D, R (21));
141 P (D, E, A, B, C, R (22));
142 P (C, D, E, A, B, R (23));
143 P (B, C, D, E, A, R (24));
144 P (A, B, C, D, E, R (25));
145 P (E, A, B, C, D, R (26));
146 P (D, E, A, B, C, R (27));
147 P (C, D, E, A, B, R (28));
148 P (B, C, D, E, A, R (29));
149 P (A, B, C, D, E, R (30));
150 P (E, A, B, C, D, R (31));
151 P (D, E, A, B, C, R (32));
152 P (C, D, E, A, B, R (33));
153 P (B, C, D, E, A, R (34));
154 P (A, B, C, D, E, R (35));
155 P (E, A, B, C, D, R (36));
156 P (D, E, A, B, C, R (37));
157 P (C, D, E, A, B, R (38));
158 P (B, C, D, E, A, R (39));
163 #define F(x,y,z) ((x & y) | (z & (x | y)))
166 P (A, B, C, D, E, R (40));
167 P (E, A, B, C, D, R (41));
168 P (D, E, A, B, C, R (42));
169 P (C, D, E, A, B, R (43));
170 P (B, C, D, E, A, R (44));
171 P (A, B, C, D, E, R (45));
172 P (E, A, B, C, D, R (46));
173 P (D, E, A, B, C, R (47));
174 P (C, D, E, A, B, R (48));
175 P (B, C, D, E, A, R (49));
176 P (A, B, C, D, E, R (50));
177 P (E, A, B, C, D, R (51));
178 P (D, E, A, B, C, R (52));
179 P (C, D, E, A, B, R (53));
180 P (B, C, D, E, A, R (54));
181 P (A, B, C, D, E, R (55));
182 P (E, A, B, C, D, R (56));
183 P (D, E, A, B, C, R (57));
184 P (C, D, E, A, B, R (58));
185 P (B, C, D, E, A, R (59));
190 #define F(x,y,z) (x ^ y ^ z)
193 P (A, B, C, D, E, R (60));
194 P (E, A, B, C, D, R (61));
195 P (D, E, A, B, C, R (62));
196 P (C, D, E, A, B, R (63));
197 P (B, C, D, E, A, R (64));
198 P (A, B, C, D, E, R (65));
199 P (E, A, B, C, D, R (66));
200 P (D, E, A, B, C, R (67));
201 P (C, D, E, A, B, R (68));
202 P (B, C, D, E, A, R (69));
203 P (A, B, C, D, E, R (70));
204 P (E, A, B, C, D, R (71));
205 P (D, E, A, B, C, R (72));
206 P (C, D, E, A, B, R (73));
207 P (B, C, D, E, A, R (74));
208 P (A, B, C, D, E, R (75));
209 P (E, A, B, C, D, R (76));
210 P (D, E, A, B, C, R (77));
211 P (C, D, E, A, B, R (78));
212 P (B, C, D, E, A, R (79));
225 * SHA-1 process buffer
227 void sha1_update (sha1_context * ctx, unsigned char *input, int ilen)
235 left = ctx->total[0] & 0x3F;
238 ctx->total[0] += ilen;
239 ctx->total[0] &= 0xFFFFFFFF;
241 if (ctx->total[0] < (unsigned long) ilen)
244 if (left && ilen >= fill) {
245 memcpy ((void *) (ctx->buffer + left), (void *) input, fill);
246 sha1_process (ctx, ctx->buffer);
253 sha1_process (ctx, input);
259 memcpy ((void *) (ctx->buffer + left), (void *) input, ilen);
263 static const unsigned char sha1_padding[64] = {
264 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
265 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
266 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
267 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
273 void sha1_finish (sha1_context * ctx, unsigned char output[20])
275 unsigned long last, padn;
276 unsigned long high, low;
277 unsigned char msglen[8];
279 high = (ctx->total[0] >> 29)
280 | (ctx->total[1] << 3);
281 low = (ctx->total[0] << 3);
283 PUT_UINT32_BE (high, msglen, 0);
284 PUT_UINT32_BE (low, msglen, 4);
286 last = ctx->total[0] & 0x3F;
287 padn = (last < 56) ? (56 - last) : (120 - last);
289 sha1_update (ctx, (unsigned char *) sha1_padding, padn);
290 sha1_update (ctx, msglen, 8);
292 PUT_UINT32_BE (ctx->state[0], output, 0);
293 PUT_UINT32_BE (ctx->state[1], output, 4);
294 PUT_UINT32_BE (ctx->state[2], output, 8);
295 PUT_UINT32_BE (ctx->state[3], output, 12);
296 PUT_UINT32_BE (ctx->state[4], output, 16);
300 * Output = SHA-1( input buffer )
302 void sha1_csum (unsigned char *input, int ilen, unsigned char output[20])
307 sha1_update (&ctx, input, ilen);
308 sha1_finish (&ctx, output);
312 * Output = HMAC-SHA-1( input buffer, hmac key )
314 void sha1_hmac (unsigned char *key, int keylen,
315 unsigned char *input, int ilen, unsigned char output[20])
319 unsigned char k_ipad[64];
320 unsigned char k_opad[64];
321 unsigned char tmpbuf[20];
323 memset (k_ipad, 0x36, 64);
324 memset (k_opad, 0x5C, 64);
326 for (i = 0; i < keylen; i++) {
335 sha1_update (&ctx, k_ipad, 64);
336 sha1_update (&ctx, input, ilen);
337 sha1_finish (&ctx, tmpbuf);
340 sha1_update (&ctx, k_opad, 64);
341 sha1_update (&ctx, tmpbuf, 20);
342 sha1_finish (&ctx, output);
344 memset (k_ipad, 0, 64);
345 memset (k_opad, 0, 64);
346 memset (tmpbuf, 0, 20);
347 memset (&ctx, 0, sizeof (sha1_context));
350 static const char _sha1_src[] = "_sha1_src";
354 * FIPS-180-1 test vectors
356 static const char sha1_test_str[3][57] = {
358 {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"},
362 static const unsigned char sha1_test_sum[3][20] = {
363 {0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
364 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D},
365 {0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
366 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1},
367 {0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
368 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F}
374 int sha1_self_test (void)
377 unsigned char buf[1000];
378 unsigned char sha1sum[20];
381 for (i = 0; i < 3; i++) {
382 printf (" SHA-1 test #%d: ", i + 1);
387 sha1_update (&ctx, (unsigned char *) sha1_test_str[i],
388 strlen (sha1_test_str[i]));
390 memset (buf, 'a', 1000);
391 for (j = 0; j < 1000; j++)
392 sha1_update (&ctx, buf, 1000);
395 sha1_finish (&ctx, sha1sum);
397 if (memcmp (sha1sum, sha1_test_sum[i], 20) != 0) {
409 int sha1_self_test (void)