Maxim nexpaq / nexpaq_dev

Preliminary main mbed library for nexpaq development

features/mbedtls/src/sha1.c@1:d96dbedaebdb, 2016-11-04 (annotated)

Committer:
nexpaq
Date:
Fri Nov 04 20:54:50 2016 +0000
Revision:
1:d96dbedaebdb
Parent:
0:6c56fb4bc5f0 
Removed extra directories for other platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 0:6c56fb4bc5f0 1 /*
nexpaq 0:6c56fb4bc5f0 2 * FIPS-180-1 compliant SHA-1 implementation
nexpaq 0:6c56fb4bc5f0 3 *
nexpaq 0:6c56fb4bc5f0 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
nexpaq 0:6c56fb4bc5f0 5 * SPDX-License-Identifier: Apache-2.0
nexpaq 0:6c56fb4bc5f0 6 *
nexpaq 0:6c56fb4bc5f0 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
nexpaq 0:6c56fb4bc5f0 8 * not use this file except in compliance with the License.
nexpaq 0:6c56fb4bc5f0 9 * You may obtain a copy of the License at
nexpaq 0:6c56fb4bc5f0 10 *
nexpaq 0:6c56fb4bc5f0 11 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 0:6c56fb4bc5f0 12 *
nexpaq 0:6c56fb4bc5f0 13 * Unless required by applicable law or agreed to in writing, software
nexpaq 0:6c56fb4bc5f0 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
nexpaq 0:6c56fb4bc5f0 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 0:6c56fb4bc5f0 16 * See the License for the specific language governing permissions and
nexpaq 0:6c56fb4bc5f0 17 * limitations under the License.
nexpaq 0:6c56fb4bc5f0 18 *
nexpaq 0:6c56fb4bc5f0 19 * This file is part of mbed TLS (https://tls.mbed.org)
nexpaq 0:6c56fb4bc5f0 20 */
nexpaq 0:6c56fb4bc5f0 21 /*
nexpaq 0:6c56fb4bc5f0 22 * The SHA-1 standard was published by NIST in 1993.
nexpaq 0:6c56fb4bc5f0 23 *
nexpaq 0:6c56fb4bc5f0 24 * http://www.itl.nist.gov/fipspubs/fip180-1.htm
nexpaq 0:6c56fb4bc5f0 25 */
nexpaq 0:6c56fb4bc5f0 26
nexpaq 0:6c56fb4bc5f0 27 #if !defined(MBEDTLS_CONFIG_FILE)
nexpaq 0:6c56fb4bc5f0 28 #include "mbedtls/config.h"
nexpaq 0:6c56fb4bc5f0 29 #else
nexpaq 0:6c56fb4bc5f0 30 #include MBEDTLS_CONFIG_FILE
nexpaq 0:6c56fb4bc5f0 31 #endif
nexpaq 0:6c56fb4bc5f0 32
nexpaq 0:6c56fb4bc5f0 33 #if defined(MBEDTLS_SHA1_C)
nexpaq 0:6c56fb4bc5f0 34
nexpaq 0:6c56fb4bc5f0 35 #include "mbedtls/sha1.h"
nexpaq 0:6c56fb4bc5f0 36
nexpaq 0:6c56fb4bc5f0 37 #include <string.h>
nexpaq 0:6c56fb4bc5f0 38
nexpaq 0:6c56fb4bc5f0 39 #if defined(MBEDTLS_SELF_TEST)
nexpaq 0:6c56fb4bc5f0 40 #if defined(MBEDTLS_PLATFORM_C)
nexpaq 0:6c56fb4bc5f0 41 #include "mbedtls/platform.h"
nexpaq 0:6c56fb4bc5f0 42 #else
nexpaq 0:6c56fb4bc5f0 43 #include <stdio.h>
nexpaq 0:6c56fb4bc5f0 44 #define mbedtls_printf printf
nexpaq 0:6c56fb4bc5f0 45 #endif /* MBEDTLS_PLATFORM_C */
nexpaq 0:6c56fb4bc5f0 46 #endif /* MBEDTLS_SELF_TEST */
nexpaq 0:6c56fb4bc5f0 47
nexpaq 0:6c56fb4bc5f0 48 #if !defined(MBEDTLS_SHA1_ALT)
nexpaq 0:6c56fb4bc5f0 49
nexpaq 0:6c56fb4bc5f0 50 /* Implementation that should never be optimized out by the compiler */
nexpaq 0:6c56fb4bc5f0 51 static void mbedtls_zeroize( void *v, size_t n ) {
nexpaq 0:6c56fb4bc5f0 52 volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
nexpaq 0:6c56fb4bc5f0 53 }
nexpaq 0:6c56fb4bc5f0 54
nexpaq 0:6c56fb4bc5f0 55 /*
nexpaq 0:6c56fb4bc5f0 56 * 32-bit integer manipulation macros (big endian)
nexpaq 0:6c56fb4bc5f0 57 */
nexpaq 0:6c56fb4bc5f0 58 #ifndef GET_UINT32_BE
nexpaq 0:6c56fb4bc5f0 59 #define GET_UINT32_BE(n,b,i) \
nexpaq 0:6c56fb4bc5f0 60 { \
nexpaq 0:6c56fb4bc5f0 61 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
nexpaq 0:6c56fb4bc5f0 62 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
nexpaq 0:6c56fb4bc5f0 63 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
nexpaq 0:6c56fb4bc5f0 64 | ( (uint32_t) (b)[(i) + 3] ); \
nexpaq 0:6c56fb4bc5f0 65 }
nexpaq 0:6c56fb4bc5f0 66 #endif
nexpaq 0:6c56fb4bc5f0 67
nexpaq 0:6c56fb4bc5f0 68 #ifndef PUT_UINT32_BE
nexpaq 0:6c56fb4bc5f0 69 #define PUT_UINT32_BE(n,b,i) \
nexpaq 0:6c56fb4bc5f0 70 { \
nexpaq 0:6c56fb4bc5f0 71 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
nexpaq 0:6c56fb4bc5f0 72 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
nexpaq 0:6c56fb4bc5f0 73 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
nexpaq 0:6c56fb4bc5f0 74 (b)[(i) + 3] = (unsigned char) ( (n) ); \
nexpaq 0:6c56fb4bc5f0 75 }
nexpaq 0:6c56fb4bc5f0 76 #endif
nexpaq 0:6c56fb4bc5f0 77
nexpaq 0:6c56fb4bc5f0 78 void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
nexpaq 0:6c56fb4bc5f0 79 {
nexpaq 0:6c56fb4bc5f0 80 memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
nexpaq 0:6c56fb4bc5f0 81 }
nexpaq 0:6c56fb4bc5f0 82
nexpaq 0:6c56fb4bc5f0 83 void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
nexpaq 0:6c56fb4bc5f0 84 {
nexpaq 0:6c56fb4bc5f0 85 if( ctx == NULL )
nexpaq 0:6c56fb4bc5f0 86 return;
nexpaq 0:6c56fb4bc5f0 87
nexpaq 0:6c56fb4bc5f0 88 mbedtls_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
nexpaq 0:6c56fb4bc5f0 89 }
nexpaq 0:6c56fb4bc5f0 90
nexpaq 0:6c56fb4bc5f0 91 void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
nexpaq 0:6c56fb4bc5f0 92 const mbedtls_sha1_context *src )
nexpaq 0:6c56fb4bc5f0 93 {
nexpaq 0:6c56fb4bc5f0 94 *dst = *src;
nexpaq 0:6c56fb4bc5f0 95 }
nexpaq 0:6c56fb4bc5f0 96
nexpaq 0:6c56fb4bc5f0 97 /*
nexpaq 0:6c56fb4bc5f0 98 * SHA-1 context setup
nexpaq 0:6c56fb4bc5f0 99 */
nexpaq 0:6c56fb4bc5f0 100 void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
nexpaq 0:6c56fb4bc5f0 101 {
nexpaq 0:6c56fb4bc5f0 102 ctx->total[0] = 0;
nexpaq 0:6c56fb4bc5f0 103 ctx->total[1] = 0;
nexpaq 0:6c56fb4bc5f0 104
nexpaq 0:6c56fb4bc5f0 105 ctx->state[0] = 0x67452301;
nexpaq 0:6c56fb4bc5f0 106 ctx->state[1] = 0xEFCDAB89;
nexpaq 0:6c56fb4bc5f0 107 ctx->state[2] = 0x98BADCFE;
nexpaq 0:6c56fb4bc5f0 108 ctx->state[3] = 0x10325476;
nexpaq 0:6c56fb4bc5f0 109 ctx->state[4] = 0xC3D2E1F0;
nexpaq 0:6c56fb4bc5f0 110 }
nexpaq 0:6c56fb4bc5f0 111
nexpaq 0:6c56fb4bc5f0 112 #if !defined(MBEDTLS_SHA1_PROCESS_ALT)
nexpaq 0:6c56fb4bc5f0 113 void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] )
nexpaq 0:6c56fb4bc5f0 114 {
nexpaq 0:6c56fb4bc5f0 115 uint32_t temp, W[16], A, B, C, D, E;
nexpaq 0:6c56fb4bc5f0 116
nexpaq 0:6c56fb4bc5f0 117 GET_UINT32_BE( W[ 0], data, 0 );
nexpaq 0:6c56fb4bc5f0 118 GET_UINT32_BE( W[ 1], data, 4 );
nexpaq 0:6c56fb4bc5f0 119 GET_UINT32_BE( W[ 2], data, 8 );
nexpaq 0:6c56fb4bc5f0 120 GET_UINT32_BE( W[ 3], data, 12 );
nexpaq 0:6c56fb4bc5f0 121 GET_UINT32_BE( W[ 4], data, 16 );
nexpaq 0:6c56fb4bc5f0 122 GET_UINT32_BE( W[ 5], data, 20 );
nexpaq 0:6c56fb4bc5f0 123 GET_UINT32_BE( W[ 6], data, 24 );
nexpaq 0:6c56fb4bc5f0 124 GET_UINT32_BE( W[ 7], data, 28 );
nexpaq 0:6c56fb4bc5f0 125 GET_UINT32_BE( W[ 8], data, 32 );
nexpaq 0:6c56fb4bc5f0 126 GET_UINT32_BE( W[ 9], data, 36 );
nexpaq 0:6c56fb4bc5f0 127 GET_UINT32_BE( W[10], data, 40 );
nexpaq 0:6c56fb4bc5f0 128 GET_UINT32_BE( W[11], data, 44 );
nexpaq 0:6c56fb4bc5f0 129 GET_UINT32_BE( W[12], data, 48 );
nexpaq 0:6c56fb4bc5f0 130 GET_UINT32_BE( W[13], data, 52 );
nexpaq 0:6c56fb4bc5f0 131 GET_UINT32_BE( W[14], data, 56 );
nexpaq 0:6c56fb4bc5f0 132 GET_UINT32_BE( W[15], data, 60 );
nexpaq 0:6c56fb4bc5f0 133
nexpaq 0:6c56fb4bc5f0 134 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
nexpaq 0:6c56fb4bc5f0 135
nexpaq 0:6c56fb4bc5f0 136 #define R(t) \
nexpaq 0:6c56fb4bc5f0 137 ( \
nexpaq 0:6c56fb4bc5f0 138 temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
nexpaq 0:6c56fb4bc5f0 139 W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
nexpaq 0:6c56fb4bc5f0 140 ( W[t & 0x0F] = S(temp,1) ) \
nexpaq 0:6c56fb4bc5f0 141 )
nexpaq 0:6c56fb4bc5f0 142
nexpaq 0:6c56fb4bc5f0 143 #define P(a,b,c,d,e,x) \
nexpaq 0:6c56fb4bc5f0 144 { \
nexpaq 0:6c56fb4bc5f0 145 e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
nexpaq 0:6c56fb4bc5f0 146 }
nexpaq 0:6c56fb4bc5f0 147
nexpaq 0:6c56fb4bc5f0 148 A = ctx->state[0];
nexpaq 0:6c56fb4bc5f0 149 B = ctx->state[1];
nexpaq 0:6c56fb4bc5f0 150 C = ctx->state[2];
nexpaq 0:6c56fb4bc5f0 151 D = ctx->state[3];
nexpaq 0:6c56fb4bc5f0 152 E = ctx->state[4];
nexpaq 0:6c56fb4bc5f0 153
nexpaq 0:6c56fb4bc5f0 154 #define F(x,y,z) (z ^ (x & (y ^ z)))
nexpaq 0:6c56fb4bc5f0 155 #define K 0x5A827999
nexpaq 0:6c56fb4bc5f0 156
nexpaq 0:6c56fb4bc5f0 157 P( A, B, C, D, E, W[0] );
nexpaq 0:6c56fb4bc5f0 158 P( E, A, B, C, D, W[1] );
nexpaq 0:6c56fb4bc5f0 159 P( D, E, A, B, C, W[2] );
nexpaq 0:6c56fb4bc5f0 160 P( C, D, E, A, B, W[3] );
nexpaq 0:6c56fb4bc5f0 161 P( B, C, D, E, A, W[4] );
nexpaq 0:6c56fb4bc5f0 162 P( A, B, C, D, E, W[5] );
nexpaq 0:6c56fb4bc5f0 163 P( E, A, B, C, D, W[6] );
nexpaq 0:6c56fb4bc5f0 164 P( D, E, A, B, C, W[7] );
nexpaq 0:6c56fb4bc5f0 165 P( C, D, E, A, B, W[8] );
nexpaq 0:6c56fb4bc5f0 166 P( B, C, D, E, A, W[9] );
nexpaq 0:6c56fb4bc5f0 167 P( A, B, C, D, E, W[10] );
nexpaq 0:6c56fb4bc5f0 168 P( E, A, B, C, D, W[11] );
nexpaq 0:6c56fb4bc5f0 169 P( D, E, A, B, C, W[12] );
nexpaq 0:6c56fb4bc5f0 170 P( C, D, E, A, B, W[13] );
nexpaq 0:6c56fb4bc5f0 171 P( B, C, D, E, A, W[14] );
nexpaq 0:6c56fb4bc5f0 172 P( A, B, C, D, E, W[15] );
nexpaq 0:6c56fb4bc5f0 173 P( E, A, B, C, D, R(16) );
nexpaq 0:6c56fb4bc5f0 174 P( D, E, A, B, C, R(17) );
nexpaq 0:6c56fb4bc5f0 175 P( C, D, E, A, B, R(18) );
nexpaq 0:6c56fb4bc5f0 176 P( B, C, D, E, A, R(19) );
nexpaq 0:6c56fb4bc5f0 177
nexpaq 0:6c56fb4bc5f0 178 #undef K
nexpaq 0:6c56fb4bc5f0 179 #undef F
nexpaq 0:6c56fb4bc5f0 180
nexpaq 0:6c56fb4bc5f0 181 #define F(x,y,z) (x ^ y ^ z)
nexpaq 0:6c56fb4bc5f0 182 #define K 0x6ED9EBA1
nexpaq 0:6c56fb4bc5f0 183
nexpaq 0:6c56fb4bc5f0 184 P( A, B, C, D, E, R(20) );
nexpaq 0:6c56fb4bc5f0 185 P( E, A, B, C, D, R(21) );
nexpaq 0:6c56fb4bc5f0 186 P( D, E, A, B, C, R(22) );
nexpaq 0:6c56fb4bc5f0 187 P( C, D, E, A, B, R(23) );
nexpaq 0:6c56fb4bc5f0 188 P( B, C, D, E, A, R(24) );
nexpaq 0:6c56fb4bc5f0 189 P( A, B, C, D, E, R(25) );
nexpaq 0:6c56fb4bc5f0 190 P( E, A, B, C, D, R(26) );
nexpaq 0:6c56fb4bc5f0 191 P( D, E, A, B, C, R(27) );
nexpaq 0:6c56fb4bc5f0 192 P( C, D, E, A, B, R(28) );
nexpaq 0:6c56fb4bc5f0 193 P( B, C, D, E, A, R(29) );
nexpaq 0:6c56fb4bc5f0 194 P( A, B, C, D, E, R(30) );
nexpaq 0:6c56fb4bc5f0 195 P( E, A, B, C, D, R(31) );
nexpaq 0:6c56fb4bc5f0 196 P( D, E, A, B, C, R(32) );
nexpaq 0:6c56fb4bc5f0 197 P( C, D, E, A, B, R(33) );
nexpaq 0:6c56fb4bc5f0 198 P( B, C, D, E, A, R(34) );
nexpaq 0:6c56fb4bc5f0 199 P( A, B, C, D, E, R(35) );
nexpaq 0:6c56fb4bc5f0 200 P( E, A, B, C, D, R(36) );
nexpaq 0:6c56fb4bc5f0 201 P( D, E, A, B, C, R(37) );
nexpaq 0:6c56fb4bc5f0 202 P( C, D, E, A, B, R(38) );
nexpaq 0:6c56fb4bc5f0 203 P( B, C, D, E, A, R(39) );
nexpaq 0:6c56fb4bc5f0 204
nexpaq 0:6c56fb4bc5f0 205 #undef K
nexpaq 0:6c56fb4bc5f0 206 #undef F
nexpaq 0:6c56fb4bc5f0 207
nexpaq 0:6c56fb4bc5f0 208 #define F(x,y,z) ((x & y) | (z & (x | y)))
nexpaq 0:6c56fb4bc5f0 209 #define K 0x8F1BBCDC
nexpaq 0:6c56fb4bc5f0 210
nexpaq 0:6c56fb4bc5f0 211 P( A, B, C, D, E, R(40) );
nexpaq 0:6c56fb4bc5f0 212 P( E, A, B, C, D, R(41) );
nexpaq 0:6c56fb4bc5f0 213 P( D, E, A, B, C, R(42) );
nexpaq 0:6c56fb4bc5f0 214 P( C, D, E, A, B, R(43) );
nexpaq 0:6c56fb4bc5f0 215 P( B, C, D, E, A, R(44) );
nexpaq 0:6c56fb4bc5f0 216 P( A, B, C, D, E, R(45) );
nexpaq 0:6c56fb4bc5f0 217 P( E, A, B, C, D, R(46) );
nexpaq 0:6c56fb4bc5f0 218 P( D, E, A, B, C, R(47) );
nexpaq 0:6c56fb4bc5f0 219 P( C, D, E, A, B, R(48) );
nexpaq 0:6c56fb4bc5f0 220 P( B, C, D, E, A, R(49) );
nexpaq 0:6c56fb4bc5f0 221 P( A, B, C, D, E, R(50) );
nexpaq 0:6c56fb4bc5f0 222 P( E, A, B, C, D, R(51) );
nexpaq 0:6c56fb4bc5f0 223 P( D, E, A, B, C, R(52) );
nexpaq 0:6c56fb4bc5f0 224 P( C, D, E, A, B, R(53) );
nexpaq 0:6c56fb4bc5f0 225 P( B, C, D, E, A, R(54) );
nexpaq 0:6c56fb4bc5f0 226 P( A, B, C, D, E, R(55) );
nexpaq 0:6c56fb4bc5f0 227 P( E, A, B, C, D, R(56) );
nexpaq 0:6c56fb4bc5f0 228 P( D, E, A, B, C, R(57) );
nexpaq 0:6c56fb4bc5f0 229 P( C, D, E, A, B, R(58) );
nexpaq 0:6c56fb4bc5f0 230 P( B, C, D, E, A, R(59) );
nexpaq 0:6c56fb4bc5f0 231
nexpaq 0:6c56fb4bc5f0 232 #undef K
nexpaq 0:6c56fb4bc5f0 233 #undef F
nexpaq 0:6c56fb4bc5f0 234
nexpaq 0:6c56fb4bc5f0 235 #define F(x,y,z) (x ^ y ^ z)
nexpaq 0:6c56fb4bc5f0 236 #define K 0xCA62C1D6
nexpaq 0:6c56fb4bc5f0 237
nexpaq 0:6c56fb4bc5f0 238 P( A, B, C, D, E, R(60) );
nexpaq 0:6c56fb4bc5f0 239 P( E, A, B, C, D, R(61) );
nexpaq 0:6c56fb4bc5f0 240 P( D, E, A, B, C, R(62) );
nexpaq 0:6c56fb4bc5f0 241 P( C, D, E, A, B, R(63) );
nexpaq 0:6c56fb4bc5f0 242 P( B, C, D, E, A, R(64) );
nexpaq 0:6c56fb4bc5f0 243 P( A, B, C, D, E, R(65) );
nexpaq 0:6c56fb4bc5f0 244 P( E, A, B, C, D, R(66) );
nexpaq 0:6c56fb4bc5f0 245 P( D, E, A, B, C, R(67) );
nexpaq 0:6c56fb4bc5f0 246 P( C, D, E, A, B, R(68) );
nexpaq 0:6c56fb4bc5f0 247 P( B, C, D, E, A, R(69) );
nexpaq 0:6c56fb4bc5f0 248 P( A, B, C, D, E, R(70) );
nexpaq 0:6c56fb4bc5f0 249 P( E, A, B, C, D, R(71) );
nexpaq 0:6c56fb4bc5f0 250 P( D, E, A, B, C, R(72) );
nexpaq 0:6c56fb4bc5f0 251 P( C, D, E, A, B, R(73) );
nexpaq 0:6c56fb4bc5f0 252 P( B, C, D, E, A, R(74) );
nexpaq 0:6c56fb4bc5f0 253 P( A, B, C, D, E, R(75) );
nexpaq 0:6c56fb4bc5f0 254 P( E, A, B, C, D, R(76) );
nexpaq 0:6c56fb4bc5f0 255 P( D, E, A, B, C, R(77) );
nexpaq 0:6c56fb4bc5f0 256 P( C, D, E, A, B, R(78) );
nexpaq 0:6c56fb4bc5f0 257 P( B, C, D, E, A, R(79) );
nexpaq 0:6c56fb4bc5f0 258
nexpaq 0:6c56fb4bc5f0 259 #undef K
nexpaq 0:6c56fb4bc5f0 260 #undef F
nexpaq 0:6c56fb4bc5f0 261
nexpaq 0:6c56fb4bc5f0 262 ctx->state[0] += A;
nexpaq 0:6c56fb4bc5f0 263 ctx->state[1] += B;
nexpaq 0:6c56fb4bc5f0 264 ctx->state[2] += C;
nexpaq 0:6c56fb4bc5f0 265 ctx->state[3] += D;
nexpaq 0:6c56fb4bc5f0 266 ctx->state[4] += E;
nexpaq 0:6c56fb4bc5f0 267 }
nexpaq 0:6c56fb4bc5f0 268 #endif /* !MBEDTLS_SHA1_PROCESS_ALT */
nexpaq 0:6c56fb4bc5f0 269
nexpaq 0:6c56fb4bc5f0 270 /*
nexpaq 0:6c56fb4bc5f0 271 * SHA-1 process buffer
nexpaq 0:6c56fb4bc5f0 272 */
nexpaq 0:6c56fb4bc5f0 273 void mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen )
nexpaq 0:6c56fb4bc5f0 274 {
nexpaq 0:6c56fb4bc5f0 275 size_t fill;
nexpaq 0:6c56fb4bc5f0 276 uint32_t left;
nexpaq 0:6c56fb4bc5f0 277
nexpaq 0:6c56fb4bc5f0 278 if( ilen == 0 )
nexpaq 0:6c56fb4bc5f0 279 return;
nexpaq 0:6c56fb4bc5f0 280
nexpaq 0:6c56fb4bc5f0 281 left = ctx->total[0] & 0x3F;
nexpaq 0:6c56fb4bc5f0 282 fill = 64 - left;
nexpaq 0:6c56fb4bc5f0 283
nexpaq 0:6c56fb4bc5f0 284 ctx->total[0] += (uint32_t) ilen;
nexpaq 0:6c56fb4bc5f0 285 ctx->total[0] &= 0xFFFFFFFF;
nexpaq 0:6c56fb4bc5f0 286
nexpaq 0:6c56fb4bc5f0 287 if( ctx->total[0] < (uint32_t) ilen )
nexpaq 0:6c56fb4bc5f0 288 ctx->total[1]++;
nexpaq 0:6c56fb4bc5f0 289
nexpaq 0:6c56fb4bc5f0 290 if( left && ilen >= fill )
nexpaq 0:6c56fb4bc5f0 291 {
nexpaq 0:6c56fb4bc5f0 292 memcpy( (void *) (ctx->buffer + left), input, fill );
nexpaq 0:6c56fb4bc5f0 293 mbedtls_sha1_process( ctx, ctx->buffer );
nexpaq 0:6c56fb4bc5f0 294 input += fill;
nexpaq 0:6c56fb4bc5f0 295 ilen -= fill;
nexpaq 0:6c56fb4bc5f0 296 left = 0;
nexpaq 0:6c56fb4bc5f0 297 }
nexpaq 0:6c56fb4bc5f0 298
nexpaq 0:6c56fb4bc5f0 299 while( ilen >= 64 )
nexpaq 0:6c56fb4bc5f0 300 {
nexpaq 0:6c56fb4bc5f0 301 mbedtls_sha1_process( ctx, input );
nexpaq 0:6c56fb4bc5f0 302 input += 64;
nexpaq 0:6c56fb4bc5f0 303 ilen -= 64;
nexpaq 0:6c56fb4bc5f0 304 }
nexpaq 0:6c56fb4bc5f0 305
nexpaq 0:6c56fb4bc5f0 306 if( ilen > 0 )
nexpaq 0:6c56fb4bc5f0 307 memcpy( (void *) (ctx->buffer + left), input, ilen );
nexpaq 0:6c56fb4bc5f0 308 }
nexpaq 0:6c56fb4bc5f0 309
nexpaq 0:6c56fb4bc5f0 310 static const unsigned char sha1_padding[64] =
nexpaq 0:6c56fb4bc5f0 311 {
nexpaq 0:6c56fb4bc5f0 312 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 0:6c56fb4bc5f0 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 0:6c56fb4bc5f0 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 0:6c56fb4bc5f0 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
nexpaq 0:6c56fb4bc5f0 316 };
nexpaq 0:6c56fb4bc5f0 317
nexpaq 0:6c56fb4bc5f0 318 /*
nexpaq 0:6c56fb4bc5f0 319 * SHA-1 final digest
nexpaq 0:6c56fb4bc5f0 320 */
nexpaq 0:6c56fb4bc5f0 321 void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] )
nexpaq 0:6c56fb4bc5f0 322 {
nexpaq 0:6c56fb4bc5f0 323 uint32_t last, padn;
nexpaq 0:6c56fb4bc5f0 324 uint32_t high, low;
nexpaq 0:6c56fb4bc5f0 325 unsigned char msglen[8];
nexpaq 0:6c56fb4bc5f0 326
nexpaq 0:6c56fb4bc5f0 327 high = ( ctx->total[0] >> 29 )
nexpaq 0:6c56fb4bc5f0 328 | ( ctx->total[1] << 3 );
nexpaq 0:6c56fb4bc5f0 329 low = ( ctx->total[0] << 3 );
nexpaq 0:6c56fb4bc5f0 330
nexpaq 0:6c56fb4bc5f0 331 PUT_UINT32_BE( high, msglen, 0 );
nexpaq 0:6c56fb4bc5f0 332 PUT_UINT32_BE( low, msglen, 4 );
nexpaq 0:6c56fb4bc5f0 333
nexpaq 0:6c56fb4bc5f0 334 last = ctx->total[0] & 0x3F;
nexpaq 0:6c56fb4bc5f0 335 padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
nexpaq 0:6c56fb4bc5f0 336
nexpaq 0:6c56fb4bc5f0 337 mbedtls_sha1_update( ctx, sha1_padding, padn );
nexpaq 0:6c56fb4bc5f0 338 mbedtls_sha1_update( ctx, msglen, 8 );
nexpaq 0:6c56fb4bc5f0 339
nexpaq 0:6c56fb4bc5f0 340 PUT_UINT32_BE( ctx->state[0], output, 0 );
nexpaq 0:6c56fb4bc5f0 341 PUT_UINT32_BE( ctx->state[1], output, 4 );
nexpaq 0:6c56fb4bc5f0 342 PUT_UINT32_BE( ctx->state[2], output, 8 );
nexpaq 0:6c56fb4bc5f0 343 PUT_UINT32_BE( ctx->state[3], output, 12 );
nexpaq 0:6c56fb4bc5f0 344 PUT_UINT32_BE( ctx->state[4], output, 16 );
nexpaq 0:6c56fb4bc5f0 345 }
nexpaq 0:6c56fb4bc5f0 346
nexpaq 0:6c56fb4bc5f0 347 #endif /* !MBEDTLS_SHA1_ALT */
nexpaq 0:6c56fb4bc5f0 348
nexpaq 0:6c56fb4bc5f0 349 /*
nexpaq 0:6c56fb4bc5f0 350 * output = SHA-1( input buffer )
nexpaq 0:6c56fb4bc5f0 351 */
nexpaq 0:6c56fb4bc5f0 352 void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] )
nexpaq 0:6c56fb4bc5f0 353 {
nexpaq 0:6c56fb4bc5f0 354 mbedtls_sha1_context ctx;
nexpaq 0:6c56fb4bc5f0 355
nexpaq 0:6c56fb4bc5f0 356 mbedtls_sha1_init( &ctx );
nexpaq 0:6c56fb4bc5f0 357 mbedtls_sha1_starts( &ctx );
nexpaq 0:6c56fb4bc5f0 358 mbedtls_sha1_update( &ctx, input, ilen );
nexpaq 0:6c56fb4bc5f0 359 mbedtls_sha1_finish( &ctx, output );
nexpaq 0:6c56fb4bc5f0 360 mbedtls_sha1_free( &ctx );
nexpaq 0:6c56fb4bc5f0 361 }
nexpaq 0:6c56fb4bc5f0 362
nexpaq 0:6c56fb4bc5f0 363 #if defined(MBEDTLS_SELF_TEST)
nexpaq 0:6c56fb4bc5f0 364 /*
nexpaq 0:6c56fb4bc5f0 365 * FIPS-180-1 test vectors
nexpaq 0:6c56fb4bc5f0 366 */
nexpaq 0:6c56fb4bc5f0 367 static const unsigned char sha1_test_buf[3][57] =
nexpaq 0:6c56fb4bc5f0 368 {
nexpaq 0:6c56fb4bc5f0 369 { "abc" },
nexpaq 0:6c56fb4bc5f0 370 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
nexpaq 0:6c56fb4bc5f0 371 { "" }
nexpaq 0:6c56fb4bc5f0 372 };
nexpaq 0:6c56fb4bc5f0 373
nexpaq 0:6c56fb4bc5f0 374 static const int sha1_test_buflen[3] =
nexpaq 0:6c56fb4bc5f0 375 {
nexpaq 0:6c56fb4bc5f0 376 3, 56, 1000
nexpaq 0:6c56fb4bc5f0 377 };
nexpaq 0:6c56fb4bc5f0 378
nexpaq 0:6c56fb4bc5f0 379 static const unsigned char sha1_test_sum[3][20] =
nexpaq 0:6c56fb4bc5f0 380 {
nexpaq 0:6c56fb4bc5f0 381 { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
nexpaq 0:6c56fb4bc5f0 382 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
nexpaq 0:6c56fb4bc5f0 383 { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
nexpaq 0:6c56fb4bc5f0 384 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
nexpaq 0:6c56fb4bc5f0 385 { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
nexpaq 0:6c56fb4bc5f0 386 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
nexpaq 0:6c56fb4bc5f0 387 };
nexpaq 0:6c56fb4bc5f0 388
nexpaq 0:6c56fb4bc5f0 389 /*
nexpaq 0:6c56fb4bc5f0 390 * Checkup routine
nexpaq 0:6c56fb4bc5f0 391 */
nexpaq 0:6c56fb4bc5f0 392 int mbedtls_sha1_self_test( int verbose )
nexpaq 0:6c56fb4bc5f0 393 {
nexpaq 0:6c56fb4bc5f0 394 int i, j, buflen, ret = 0;
nexpaq 0:6c56fb4bc5f0 395 unsigned char buf[1024];
nexpaq 0:6c56fb4bc5f0 396 unsigned char sha1sum[20];
nexpaq 0:6c56fb4bc5f0 397 mbedtls_sha1_context ctx;
nexpaq 0:6c56fb4bc5f0 398
nexpaq 0:6c56fb4bc5f0 399 mbedtls_sha1_init( &ctx );
nexpaq 0:6c56fb4bc5f0 400
nexpaq 0:6c56fb4bc5f0 401 /*
nexpaq 0:6c56fb4bc5f0 402 * SHA-1
nexpaq 0:6c56fb4bc5f0 403 */
nexpaq 0:6c56fb4bc5f0 404 for( i = 0; i < 3; i++ )
nexpaq 0:6c56fb4bc5f0 405 {
nexpaq 0:6c56fb4bc5f0 406 if( verbose != 0 )
nexpaq 0:6c56fb4bc5f0 407 mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
nexpaq 0:6c56fb4bc5f0 408
nexpaq 0:6c56fb4bc5f0 409 mbedtls_sha1_starts( &ctx );
nexpaq 0:6c56fb4bc5f0 410
nexpaq 0:6c56fb4bc5f0 411 if( i == 2 )
nexpaq 0:6c56fb4bc5f0 412 {
nexpaq 0:6c56fb4bc5f0 413 memset( buf, 'a', buflen = 1000 );
nexpaq 0:6c56fb4bc5f0 414
nexpaq 0:6c56fb4bc5f0 415 for( j = 0; j < 1000; j++ )
nexpaq 0:6c56fb4bc5f0 416 mbedtls_sha1_update( &ctx, buf, buflen );
nexpaq 0:6c56fb4bc5f0 417 }
nexpaq 0:6c56fb4bc5f0 418 else
nexpaq 0:6c56fb4bc5f0 419 mbedtls_sha1_update( &ctx, sha1_test_buf[i],
nexpaq 0:6c56fb4bc5f0 420 sha1_test_buflen[i] );
nexpaq 0:6c56fb4bc5f0 421
nexpaq 0:6c56fb4bc5f0 422 mbedtls_sha1_finish( &ctx, sha1sum );
nexpaq 0:6c56fb4bc5f0 423
nexpaq 0:6c56fb4bc5f0 424 if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
nexpaq 0:6c56fb4bc5f0 425 {
nexpaq 0:6c56fb4bc5f0 426 if( verbose != 0 )
nexpaq 0:6c56fb4bc5f0 427 mbedtls_printf( "failed\n" );
nexpaq 0:6c56fb4bc5f0 428
nexpaq 0:6c56fb4bc5f0 429 ret = 1;
nexpaq 0:6c56fb4bc5f0 430 goto exit;
nexpaq 0:6c56fb4bc5f0 431 }
nexpaq 0:6c56fb4bc5f0 432
nexpaq 0:6c56fb4bc5f0 433 if( verbose != 0 )
nexpaq 0:6c56fb4bc5f0 434 mbedtls_printf( "passed\n" );
nexpaq 0:6c56fb4bc5f0 435 }
nexpaq 0:6c56fb4bc5f0 436
nexpaq 0:6c56fb4bc5f0 437 if( verbose != 0 )
nexpaq 0:6c56fb4bc5f0 438 mbedtls_printf( "\n" );
nexpaq 0:6c56fb4bc5f0 439
nexpaq 0:6c56fb4bc5f0 440 exit:
nexpaq 0:6c56fb4bc5f0 441 mbedtls_sha1_free( &ctx );
nexpaq 0:6c56fb4bc5f0 442
nexpaq 0:6c56fb4bc5f0 443 return( ret );
nexpaq 0:6c56fb4bc5f0 444 }
nexpaq 0:6c56fb4bc5f0 445
nexpaq 0:6c56fb4bc5f0 446 #endif /* MBEDTLS_SELF_TEST */
nexpaq 0:6c56fb4bc5f0 447
nexpaq 0:6c56fb4bc5f0 448 #endif /* MBEDTLS_SHA1_C */