EL4121 Embedded System / mbed-os

mbed-os

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features/mbedtls/src/sha1.c@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /*
be_bryan 0:b74591d5ab33 2 * FIPS-180-1 compliant SHA-1 implementation
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
be_bryan 0:b74591d5ab33 5 * SPDX-License-Identifier: Apache-2.0
be_bryan 0:b74591d5ab33 6 *
be_bryan 0:b74591d5ab33 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
be_bryan 0:b74591d5ab33 8 * not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 9 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 10 *
be_bryan 0:b74591d5ab33 11 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 12 *
be_bryan 0:b74591d5ab33 13 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
be_bryan 0:b74591d5ab33 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 16 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 17 * limitations under the License.
be_bryan 0:b74591d5ab33 18 *
be_bryan 0:b74591d5ab33 19 * This file is part of mbed TLS (https://tls.mbed.org)
be_bryan 0:b74591d5ab33 20 */
be_bryan 0:b74591d5ab33 21 /*
be_bryan 0:b74591d5ab33 22 * The SHA-1 standard was published by NIST in 1993.
be_bryan 0:b74591d5ab33 23 *
be_bryan 0:b74591d5ab33 24 * http://www.itl.nist.gov/fipspubs/fip180-1.htm
be_bryan 0:b74591d5ab33 25 */
be_bryan 0:b74591d5ab33 26
be_bryan 0:b74591d5ab33 27 #if !defined(MBEDTLS_CONFIG_FILE)
be_bryan 0:b74591d5ab33 28 #include "mbedtls/config.h"
be_bryan 0:b74591d5ab33 29 #else
be_bryan 0:b74591d5ab33 30 #include MBEDTLS_CONFIG_FILE
be_bryan 0:b74591d5ab33 31 #endif
be_bryan 0:b74591d5ab33 32
be_bryan 0:b74591d5ab33 33 #if defined(MBEDTLS_SHA1_C)
be_bryan 0:b74591d5ab33 34
be_bryan 0:b74591d5ab33 35 #include "mbedtls/sha1.h"
be_bryan 0:b74591d5ab33 36
be_bryan 0:b74591d5ab33 37 #include <string.h>
be_bryan 0:b74591d5ab33 38
be_bryan 0:b74591d5ab33 39 #if defined(MBEDTLS_SELF_TEST)
be_bryan 0:b74591d5ab33 40 #if defined(MBEDTLS_PLATFORM_C)
be_bryan 0:b74591d5ab33 41 #include "mbedtls/platform.h"
be_bryan 0:b74591d5ab33 42 #else
be_bryan 0:b74591d5ab33 43 #include <stdio.h>
be_bryan 0:b74591d5ab33 44 #define mbedtls_printf printf
be_bryan 0:b74591d5ab33 45 #endif /* MBEDTLS_PLATFORM_C */
be_bryan 0:b74591d5ab33 46 #endif /* MBEDTLS_SELF_TEST */
be_bryan 0:b74591d5ab33 47
be_bryan 0:b74591d5ab33 48 #if !defined(MBEDTLS_SHA1_ALT)
be_bryan 0:b74591d5ab33 49
be_bryan 0:b74591d5ab33 50 /* Implementation that should never be optimized out by the compiler */
be_bryan 0:b74591d5ab33 51 static void mbedtls_zeroize( void *v, size_t n ) {
be_bryan 0:b74591d5ab33 52 volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
be_bryan 0:b74591d5ab33 53 }
be_bryan 0:b74591d5ab33 54
be_bryan 0:b74591d5ab33 55 /*
be_bryan 0:b74591d5ab33 56 * 32-bit integer manipulation macros (big endian)
be_bryan 0:b74591d5ab33 57 */
be_bryan 0:b74591d5ab33 58 #ifndef GET_UINT32_BE
be_bryan 0:b74591d5ab33 59 #define GET_UINT32_BE(n,b,i) \
be_bryan 0:b74591d5ab33 60 { \
be_bryan 0:b74591d5ab33 61 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
be_bryan 0:b74591d5ab33 62 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
be_bryan 0:b74591d5ab33 63 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
be_bryan 0:b74591d5ab33 64 | ( (uint32_t) (b)[(i) + 3] ); \
be_bryan 0:b74591d5ab33 65 }
be_bryan 0:b74591d5ab33 66 #endif
be_bryan 0:b74591d5ab33 67
be_bryan 0:b74591d5ab33 68 #ifndef PUT_UINT32_BE
be_bryan 0:b74591d5ab33 69 #define PUT_UINT32_BE(n,b,i) \
be_bryan 0:b74591d5ab33 70 { \
be_bryan 0:b74591d5ab33 71 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
be_bryan 0:b74591d5ab33 72 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
be_bryan 0:b74591d5ab33 73 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
be_bryan 0:b74591d5ab33 74 (b)[(i) + 3] = (unsigned char) ( (n) ); \
be_bryan 0:b74591d5ab33 75 }
be_bryan 0:b74591d5ab33 76 #endif
be_bryan 0:b74591d5ab33 77
be_bryan 0:b74591d5ab33 78 void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
be_bryan 0:b74591d5ab33 79 {
be_bryan 0:b74591d5ab33 80 memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
be_bryan 0:b74591d5ab33 81 }
be_bryan 0:b74591d5ab33 82
be_bryan 0:b74591d5ab33 83 void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
be_bryan 0:b74591d5ab33 84 {
be_bryan 0:b74591d5ab33 85 if( ctx == NULL )
be_bryan 0:b74591d5ab33 86 return;
be_bryan 0:b74591d5ab33 87
be_bryan 0:b74591d5ab33 88 mbedtls_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
be_bryan 0:b74591d5ab33 89 }
be_bryan 0:b74591d5ab33 90
be_bryan 0:b74591d5ab33 91 void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
be_bryan 0:b74591d5ab33 92 const mbedtls_sha1_context *src )
be_bryan 0:b74591d5ab33 93 {
be_bryan 0:b74591d5ab33 94 *dst = *src;
be_bryan 0:b74591d5ab33 95 }
be_bryan 0:b74591d5ab33 96
be_bryan 0:b74591d5ab33 97 /*
be_bryan 0:b74591d5ab33 98 * SHA-1 context setup
be_bryan 0:b74591d5ab33 99 */
be_bryan 0:b74591d5ab33 100 void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
be_bryan 0:b74591d5ab33 101 {
be_bryan 0:b74591d5ab33 102 ctx->total[0] = 0;
be_bryan 0:b74591d5ab33 103 ctx->total[1] = 0;
be_bryan 0:b74591d5ab33 104
be_bryan 0:b74591d5ab33 105 ctx->state[0] = 0x67452301;
be_bryan 0:b74591d5ab33 106 ctx->state[1] = 0xEFCDAB89;
be_bryan 0:b74591d5ab33 107 ctx->state[2] = 0x98BADCFE;
be_bryan 0:b74591d5ab33 108 ctx->state[3] = 0x10325476;
be_bryan 0:b74591d5ab33 109 ctx->state[4] = 0xC3D2E1F0;
be_bryan 0:b74591d5ab33 110 }
be_bryan 0:b74591d5ab33 111
be_bryan 0:b74591d5ab33 112 #if !defined(MBEDTLS_SHA1_PROCESS_ALT)
be_bryan 0:b74591d5ab33 113 void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] )
be_bryan 0:b74591d5ab33 114 {
be_bryan 0:b74591d5ab33 115 uint32_t temp, W[16], A, B, C, D, E;
be_bryan 0:b74591d5ab33 116
be_bryan 0:b74591d5ab33 117 GET_UINT32_BE( W[ 0], data, 0 );
be_bryan 0:b74591d5ab33 118 GET_UINT32_BE( W[ 1], data, 4 );
be_bryan 0:b74591d5ab33 119 GET_UINT32_BE( W[ 2], data, 8 );
be_bryan 0:b74591d5ab33 120 GET_UINT32_BE( W[ 3], data, 12 );
be_bryan 0:b74591d5ab33 121 GET_UINT32_BE( W[ 4], data, 16 );
be_bryan 0:b74591d5ab33 122 GET_UINT32_BE( W[ 5], data, 20 );
be_bryan 0:b74591d5ab33 123 GET_UINT32_BE( W[ 6], data, 24 );
be_bryan 0:b74591d5ab33 124 GET_UINT32_BE( W[ 7], data, 28 );
be_bryan 0:b74591d5ab33 125 GET_UINT32_BE( W[ 8], data, 32 );
be_bryan 0:b74591d5ab33 126 GET_UINT32_BE( W[ 9], data, 36 );
be_bryan 0:b74591d5ab33 127 GET_UINT32_BE( W[10], data, 40 );
be_bryan 0:b74591d5ab33 128 GET_UINT32_BE( W[11], data, 44 );
be_bryan 0:b74591d5ab33 129 GET_UINT32_BE( W[12], data, 48 );
be_bryan 0:b74591d5ab33 130 GET_UINT32_BE( W[13], data, 52 );
be_bryan 0:b74591d5ab33 131 GET_UINT32_BE( W[14], data, 56 );
be_bryan 0:b74591d5ab33 132 GET_UINT32_BE( W[15], data, 60 );
be_bryan 0:b74591d5ab33 133
be_bryan 0:b74591d5ab33 134 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
be_bryan 0:b74591d5ab33 135
be_bryan 0:b74591d5ab33 136 #define R(t) \
be_bryan 0:b74591d5ab33 137 ( \
be_bryan 0:b74591d5ab33 138 temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
be_bryan 0:b74591d5ab33 139 W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
be_bryan 0:b74591d5ab33 140 ( W[t & 0x0F] = S(temp,1) ) \
be_bryan 0:b74591d5ab33 141 )
be_bryan 0:b74591d5ab33 142
be_bryan 0:b74591d5ab33 143 #define P(a,b,c,d,e,x) \
be_bryan 0:b74591d5ab33 144 { \
be_bryan 0:b74591d5ab33 145 e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
be_bryan 0:b74591d5ab33 146 }
be_bryan 0:b74591d5ab33 147
be_bryan 0:b74591d5ab33 148 A = ctx->state[0];
be_bryan 0:b74591d5ab33 149 B = ctx->state[1];
be_bryan 0:b74591d5ab33 150 C = ctx->state[2];
be_bryan 0:b74591d5ab33 151 D = ctx->state[3];
be_bryan 0:b74591d5ab33 152 E = ctx->state[4];
be_bryan 0:b74591d5ab33 153
be_bryan 0:b74591d5ab33 154 #define F(x,y,z) (z ^ (x & (y ^ z)))
be_bryan 0:b74591d5ab33 155 #define K 0x5A827999
be_bryan 0:b74591d5ab33 156
be_bryan 0:b74591d5ab33 157 P( A, B, C, D, E, W[0] );
be_bryan 0:b74591d5ab33 158 P( E, A, B, C, D, W[1] );
be_bryan 0:b74591d5ab33 159 P( D, E, A, B, C, W[2] );
be_bryan 0:b74591d5ab33 160 P( C, D, E, A, B, W[3] );
be_bryan 0:b74591d5ab33 161 P( B, C, D, E, A, W[4] );
be_bryan 0:b74591d5ab33 162 P( A, B, C, D, E, W[5] );
be_bryan 0:b74591d5ab33 163 P( E, A, B, C, D, W[6] );
be_bryan 0:b74591d5ab33 164 P( D, E, A, B, C, W[7] );
be_bryan 0:b74591d5ab33 165 P( C, D, E, A, B, W[8] );
be_bryan 0:b74591d5ab33 166 P( B, C, D, E, A, W[9] );
be_bryan 0:b74591d5ab33 167 P( A, B, C, D, E, W[10] );
be_bryan 0:b74591d5ab33 168 P( E, A, B, C, D, W[11] );
be_bryan 0:b74591d5ab33 169 P( D, E, A, B, C, W[12] );
be_bryan 0:b74591d5ab33 170 P( C, D, E, A, B, W[13] );
be_bryan 0:b74591d5ab33 171 P( B, C, D, E, A, W[14] );
be_bryan 0:b74591d5ab33 172 P( A, B, C, D, E, W[15] );
be_bryan 0:b74591d5ab33 173 P( E, A, B, C, D, R(16) );
be_bryan 0:b74591d5ab33 174 P( D, E, A, B, C, R(17) );
be_bryan 0:b74591d5ab33 175 P( C, D, E, A, B, R(18) );
be_bryan 0:b74591d5ab33 176 P( B, C, D, E, A, R(19) );
be_bryan 0:b74591d5ab33 177
be_bryan 0:b74591d5ab33 178 #undef K
be_bryan 0:b74591d5ab33 179 #undef F
be_bryan 0:b74591d5ab33 180
be_bryan 0:b74591d5ab33 181 #define F(x,y,z) (x ^ y ^ z)
be_bryan 0:b74591d5ab33 182 #define K 0x6ED9EBA1
be_bryan 0:b74591d5ab33 183
be_bryan 0:b74591d5ab33 184 P( A, B, C, D, E, R(20) );
be_bryan 0:b74591d5ab33 185 P( E, A, B, C, D, R(21) );
be_bryan 0:b74591d5ab33 186 P( D, E, A, B, C, R(22) );
be_bryan 0:b74591d5ab33 187 P( C, D, E, A, B, R(23) );
be_bryan 0:b74591d5ab33 188 P( B, C, D, E, A, R(24) );
be_bryan 0:b74591d5ab33 189 P( A, B, C, D, E, R(25) );
be_bryan 0:b74591d5ab33 190 P( E, A, B, C, D, R(26) );
be_bryan 0:b74591d5ab33 191 P( D, E, A, B, C, R(27) );
be_bryan 0:b74591d5ab33 192 P( C, D, E, A, B, R(28) );
be_bryan 0:b74591d5ab33 193 P( B, C, D, E, A, R(29) );
be_bryan 0:b74591d5ab33 194 P( A, B, C, D, E, R(30) );
be_bryan 0:b74591d5ab33 195 P( E, A, B, C, D, R(31) );
be_bryan 0:b74591d5ab33 196 P( D, E, A, B, C, R(32) );
be_bryan 0:b74591d5ab33 197 P( C, D, E, A, B, R(33) );
be_bryan 0:b74591d5ab33 198 P( B, C, D, E, A, R(34) );
be_bryan 0:b74591d5ab33 199 P( A, B, C, D, E, R(35) );
be_bryan 0:b74591d5ab33 200 P( E, A, B, C, D, R(36) );
be_bryan 0:b74591d5ab33 201 P( D, E, A, B, C, R(37) );
be_bryan 0:b74591d5ab33 202 P( C, D, E, A, B, R(38) );
be_bryan 0:b74591d5ab33 203 P( B, C, D, E, A, R(39) );
be_bryan 0:b74591d5ab33 204
be_bryan 0:b74591d5ab33 205 #undef K
be_bryan 0:b74591d5ab33 206 #undef F
be_bryan 0:b74591d5ab33 207
be_bryan 0:b74591d5ab33 208 #define F(x,y,z) ((x & y) | (z & (x | y)))
be_bryan 0:b74591d5ab33 209 #define K 0x8F1BBCDC
be_bryan 0:b74591d5ab33 210
be_bryan 0:b74591d5ab33 211 P( A, B, C, D, E, R(40) );
be_bryan 0:b74591d5ab33 212 P( E, A, B, C, D, R(41) );
be_bryan 0:b74591d5ab33 213 P( D, E, A, B, C, R(42) );
be_bryan 0:b74591d5ab33 214 P( C, D, E, A, B, R(43) );
be_bryan 0:b74591d5ab33 215 P( B, C, D, E, A, R(44) );
be_bryan 0:b74591d5ab33 216 P( A, B, C, D, E, R(45) );
be_bryan 0:b74591d5ab33 217 P( E, A, B, C, D, R(46) );
be_bryan 0:b74591d5ab33 218 P( D, E, A, B, C, R(47) );
be_bryan 0:b74591d5ab33 219 P( C, D, E, A, B, R(48) );
be_bryan 0:b74591d5ab33 220 P( B, C, D, E, A, R(49) );
be_bryan 0:b74591d5ab33 221 P( A, B, C, D, E, R(50) );
be_bryan 0:b74591d5ab33 222 P( E, A, B, C, D, R(51) );
be_bryan 0:b74591d5ab33 223 P( D, E, A, B, C, R(52) );
be_bryan 0:b74591d5ab33 224 P( C, D, E, A, B, R(53) );
be_bryan 0:b74591d5ab33 225 P( B, C, D, E, A, R(54) );
be_bryan 0:b74591d5ab33 226 P( A, B, C, D, E, R(55) );
be_bryan 0:b74591d5ab33 227 P( E, A, B, C, D, R(56) );
be_bryan 0:b74591d5ab33 228 P( D, E, A, B, C, R(57) );
be_bryan 0:b74591d5ab33 229 P( C, D, E, A, B, R(58) );
be_bryan 0:b74591d5ab33 230 P( B, C, D, E, A, R(59) );
be_bryan 0:b74591d5ab33 231
be_bryan 0:b74591d5ab33 232 #undef K
be_bryan 0:b74591d5ab33 233 #undef F
be_bryan 0:b74591d5ab33 234
be_bryan 0:b74591d5ab33 235 #define F(x,y,z) (x ^ y ^ z)
be_bryan 0:b74591d5ab33 236 #define K 0xCA62C1D6
be_bryan 0:b74591d5ab33 237
be_bryan 0:b74591d5ab33 238 P( A, B, C, D, E, R(60) );
be_bryan 0:b74591d5ab33 239 P( E, A, B, C, D, R(61) );
be_bryan 0:b74591d5ab33 240 P( D, E, A, B, C, R(62) );
be_bryan 0:b74591d5ab33 241 P( C, D, E, A, B, R(63) );
be_bryan 0:b74591d5ab33 242 P( B, C, D, E, A, R(64) );
be_bryan 0:b74591d5ab33 243 P( A, B, C, D, E, R(65) );
be_bryan 0:b74591d5ab33 244 P( E, A, B, C, D, R(66) );
be_bryan 0:b74591d5ab33 245 P( D, E, A, B, C, R(67) );
be_bryan 0:b74591d5ab33 246 P( C, D, E, A, B, R(68) );
be_bryan 0:b74591d5ab33 247 P( B, C, D, E, A, R(69) );
be_bryan 0:b74591d5ab33 248 P( A, B, C, D, E, R(70) );
be_bryan 0:b74591d5ab33 249 P( E, A, B, C, D, R(71) );
be_bryan 0:b74591d5ab33 250 P( D, E, A, B, C, R(72) );
be_bryan 0:b74591d5ab33 251 P( C, D, E, A, B, R(73) );
be_bryan 0:b74591d5ab33 252 P( B, C, D, E, A, R(74) );
be_bryan 0:b74591d5ab33 253 P( A, B, C, D, E, R(75) );
be_bryan 0:b74591d5ab33 254 P( E, A, B, C, D, R(76) );
be_bryan 0:b74591d5ab33 255 P( D, E, A, B, C, R(77) );
be_bryan 0:b74591d5ab33 256 P( C, D, E, A, B, R(78) );
be_bryan 0:b74591d5ab33 257 P( B, C, D, E, A, R(79) );
be_bryan 0:b74591d5ab33 258
be_bryan 0:b74591d5ab33 259 #undef K
be_bryan 0:b74591d5ab33 260 #undef F
be_bryan 0:b74591d5ab33 261
be_bryan 0:b74591d5ab33 262 ctx->state[0] += A;
be_bryan 0:b74591d5ab33 263 ctx->state[1] += B;
be_bryan 0:b74591d5ab33 264 ctx->state[2] += C;
be_bryan 0:b74591d5ab33 265 ctx->state[3] += D;
be_bryan 0:b74591d5ab33 266 ctx->state[4] += E;
be_bryan 0:b74591d5ab33 267 }
be_bryan 0:b74591d5ab33 268 #endif /* !MBEDTLS_SHA1_PROCESS_ALT */
be_bryan 0:b74591d5ab33 269
be_bryan 0:b74591d5ab33 270 /*
be_bryan 0:b74591d5ab33 271 * SHA-1 process buffer
be_bryan 0:b74591d5ab33 272 */
be_bryan 0:b74591d5ab33 273 void mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen )
be_bryan 0:b74591d5ab33 274 {
be_bryan 0:b74591d5ab33 275 size_t fill;
be_bryan 0:b74591d5ab33 276 uint32_t left;
be_bryan 0:b74591d5ab33 277
be_bryan 0:b74591d5ab33 278 if( ilen == 0 )
be_bryan 0:b74591d5ab33 279 return;
be_bryan 0:b74591d5ab33 280
be_bryan 0:b74591d5ab33 281 left = ctx->total[0] & 0x3F;
be_bryan 0:b74591d5ab33 282 fill = 64 - left;
be_bryan 0:b74591d5ab33 283
be_bryan 0:b74591d5ab33 284 ctx->total[0] += (uint32_t) ilen;
be_bryan 0:b74591d5ab33 285 ctx->total[0] &= 0xFFFFFFFF;
be_bryan 0:b74591d5ab33 286
be_bryan 0:b74591d5ab33 287 if( ctx->total[0] < (uint32_t) ilen )
be_bryan 0:b74591d5ab33 288 ctx->total[1]++;
be_bryan 0:b74591d5ab33 289
be_bryan 0:b74591d5ab33 290 if( left && ilen >= fill )
be_bryan 0:b74591d5ab33 291 {
be_bryan 0:b74591d5ab33 292 memcpy( (void *) (ctx->buffer + left), input, fill );
be_bryan 0:b74591d5ab33 293 mbedtls_sha1_process( ctx, ctx->buffer );
be_bryan 0:b74591d5ab33 294 input += fill;
be_bryan 0:b74591d5ab33 295 ilen -= fill;
be_bryan 0:b74591d5ab33 296 left = 0;
be_bryan 0:b74591d5ab33 297 }
be_bryan 0:b74591d5ab33 298
be_bryan 0:b74591d5ab33 299 while( ilen >= 64 )
be_bryan 0:b74591d5ab33 300 {
be_bryan 0:b74591d5ab33 301 mbedtls_sha1_process( ctx, input );
be_bryan 0:b74591d5ab33 302 input += 64;
be_bryan 0:b74591d5ab33 303 ilen -= 64;
be_bryan 0:b74591d5ab33 304 }
be_bryan 0:b74591d5ab33 305
be_bryan 0:b74591d5ab33 306 if( ilen > 0 )
be_bryan 0:b74591d5ab33 307 memcpy( (void *) (ctx->buffer + left), input, ilen );
be_bryan 0:b74591d5ab33 308 }
be_bryan 0:b74591d5ab33 309
be_bryan 0:b74591d5ab33 310 static const unsigned char sha1_padding[64] =
be_bryan 0:b74591d5ab33 311 {
be_bryan 0:b74591d5ab33 312 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
be_bryan 0:b74591d5ab33 316 };
be_bryan 0:b74591d5ab33 317
be_bryan 0:b74591d5ab33 318 /*
be_bryan 0:b74591d5ab33 319 * SHA-1 final digest
be_bryan 0:b74591d5ab33 320 */
be_bryan 0:b74591d5ab33 321 void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] )
be_bryan 0:b74591d5ab33 322 {
be_bryan 0:b74591d5ab33 323 uint32_t last, padn;
be_bryan 0:b74591d5ab33 324 uint32_t high, low;
be_bryan 0:b74591d5ab33 325 unsigned char msglen[8];
be_bryan 0:b74591d5ab33 326
be_bryan 0:b74591d5ab33 327 high = ( ctx->total[0] >> 29 )
be_bryan 0:b74591d5ab33 328 | ( ctx->total[1] << 3 );
be_bryan 0:b74591d5ab33 329 low = ( ctx->total[0] << 3 );
be_bryan 0:b74591d5ab33 330
be_bryan 0:b74591d5ab33 331 PUT_UINT32_BE( high, msglen, 0 );
be_bryan 0:b74591d5ab33 332 PUT_UINT32_BE( low, msglen, 4 );
be_bryan 0:b74591d5ab33 333
be_bryan 0:b74591d5ab33 334 last = ctx->total[0] & 0x3F;
be_bryan 0:b74591d5ab33 335 padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
be_bryan 0:b74591d5ab33 336
be_bryan 0:b74591d5ab33 337 mbedtls_sha1_update( ctx, sha1_padding, padn );
be_bryan 0:b74591d5ab33 338 mbedtls_sha1_update( ctx, msglen, 8 );
be_bryan 0:b74591d5ab33 339
be_bryan 0:b74591d5ab33 340 PUT_UINT32_BE( ctx->state[0], output, 0 );
be_bryan 0:b74591d5ab33 341 PUT_UINT32_BE( ctx->state[1], output, 4 );
be_bryan 0:b74591d5ab33 342 PUT_UINT32_BE( ctx->state[2], output, 8 );
be_bryan 0:b74591d5ab33 343 PUT_UINT32_BE( ctx->state[3], output, 12 );
be_bryan 0:b74591d5ab33 344 PUT_UINT32_BE( ctx->state[4], output, 16 );
be_bryan 0:b74591d5ab33 345 }
be_bryan 0:b74591d5ab33 346
be_bryan 0:b74591d5ab33 347 #endif /* !MBEDTLS_SHA1_ALT */
be_bryan 0:b74591d5ab33 348
be_bryan 0:b74591d5ab33 349 /*
be_bryan 0:b74591d5ab33 350 * output = SHA-1( input buffer )
be_bryan 0:b74591d5ab33 351 */
be_bryan 0:b74591d5ab33 352 void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] )
be_bryan 0:b74591d5ab33 353 {
be_bryan 0:b74591d5ab33 354 mbedtls_sha1_context ctx;
be_bryan 0:b74591d5ab33 355
be_bryan 0:b74591d5ab33 356 mbedtls_sha1_init( &ctx );
be_bryan 0:b74591d5ab33 357 mbedtls_sha1_starts( &ctx );
be_bryan 0:b74591d5ab33 358 mbedtls_sha1_update( &ctx, input, ilen );
be_bryan 0:b74591d5ab33 359 mbedtls_sha1_finish( &ctx, output );
be_bryan 0:b74591d5ab33 360 mbedtls_sha1_free( &ctx );
be_bryan 0:b74591d5ab33 361 }
be_bryan 0:b74591d5ab33 362
be_bryan 0:b74591d5ab33 363 #if defined(MBEDTLS_SELF_TEST)
be_bryan 0:b74591d5ab33 364 /*
be_bryan 0:b74591d5ab33 365 * FIPS-180-1 test vectors
be_bryan 0:b74591d5ab33 366 */
be_bryan 0:b74591d5ab33 367 static const unsigned char sha1_test_buf[3][57] =
be_bryan 0:b74591d5ab33 368 {
be_bryan 0:b74591d5ab33 369 { "abc" },
be_bryan 0:b74591d5ab33 370 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
be_bryan 0:b74591d5ab33 371 { "" }
be_bryan 0:b74591d5ab33 372 };
be_bryan 0:b74591d5ab33 373
be_bryan 0:b74591d5ab33 374 static const int sha1_test_buflen[3] =
be_bryan 0:b74591d5ab33 375 {
be_bryan 0:b74591d5ab33 376 3, 56, 1000
be_bryan 0:b74591d5ab33 377 };
be_bryan 0:b74591d5ab33 378
be_bryan 0:b74591d5ab33 379 static const unsigned char sha1_test_sum[3][20] =
be_bryan 0:b74591d5ab33 380 {
be_bryan 0:b74591d5ab33 381 { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
be_bryan 0:b74591d5ab33 382 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
be_bryan 0:b74591d5ab33 383 { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
be_bryan 0:b74591d5ab33 384 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
be_bryan 0:b74591d5ab33 385 { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
be_bryan 0:b74591d5ab33 386 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
be_bryan 0:b74591d5ab33 387 };
be_bryan 0:b74591d5ab33 388
be_bryan 0:b74591d5ab33 389 /*
be_bryan 0:b74591d5ab33 390 * Checkup routine
be_bryan 0:b74591d5ab33 391 */
be_bryan 0:b74591d5ab33 392 int mbedtls_sha1_self_test( int verbose )
be_bryan 0:b74591d5ab33 393 {
be_bryan 0:b74591d5ab33 394 int i, j, buflen, ret = 0;
be_bryan 0:b74591d5ab33 395 unsigned char buf[1024];
be_bryan 0:b74591d5ab33 396 unsigned char sha1sum[20];
be_bryan 0:b74591d5ab33 397 mbedtls_sha1_context ctx;
be_bryan 0:b74591d5ab33 398
be_bryan 0:b74591d5ab33 399 mbedtls_sha1_init( &ctx );
be_bryan 0:b74591d5ab33 400
be_bryan 0:b74591d5ab33 401 /*
be_bryan 0:b74591d5ab33 402 * SHA-1
be_bryan 0:b74591d5ab33 403 */
be_bryan 0:b74591d5ab33 404 for( i = 0; i < 3; i++ )
be_bryan 0:b74591d5ab33 405 {
be_bryan 0:b74591d5ab33 406 if( verbose != 0 )
be_bryan 0:b74591d5ab33 407 mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
be_bryan 0:b74591d5ab33 408
be_bryan 0:b74591d5ab33 409 mbedtls_sha1_starts( &ctx );
be_bryan 0:b74591d5ab33 410
be_bryan 0:b74591d5ab33 411 if( i == 2 )
be_bryan 0:b74591d5ab33 412 {
be_bryan 0:b74591d5ab33 413 memset( buf, 'a', buflen = 1000 );
be_bryan 0:b74591d5ab33 414
be_bryan 0:b74591d5ab33 415 for( j = 0; j < 1000; j++ )
be_bryan 0:b74591d5ab33 416 mbedtls_sha1_update( &ctx, buf, buflen );
be_bryan 0:b74591d5ab33 417 }
be_bryan 0:b74591d5ab33 418 else
be_bryan 0:b74591d5ab33 419 mbedtls_sha1_update( &ctx, sha1_test_buf[i],
be_bryan 0:b74591d5ab33 420 sha1_test_buflen[i] );
be_bryan 0:b74591d5ab33 421
be_bryan 0:b74591d5ab33 422 mbedtls_sha1_finish( &ctx, sha1sum );
be_bryan 0:b74591d5ab33 423
be_bryan 0:b74591d5ab33 424 if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
be_bryan 0:b74591d5ab33 425 {
be_bryan 0:b74591d5ab33 426 if( verbose != 0 )
be_bryan 0:b74591d5ab33 427 mbedtls_printf( "failed\n" );
be_bryan 0:b74591d5ab33 428
be_bryan 0:b74591d5ab33 429 ret = 1;
be_bryan 0:b74591d5ab33 430 goto exit;
be_bryan 0:b74591d5ab33 431 }
be_bryan 0:b74591d5ab33 432
be_bryan 0:b74591d5ab33 433 if( verbose != 0 )
be_bryan 0:b74591d5ab33 434 mbedtls_printf( "passed\n" );
be_bryan 0:b74591d5ab33 435 }
be_bryan 0:b74591d5ab33 436
be_bryan 0:b74591d5ab33 437 if( verbose != 0 )
be_bryan 0:b74591d5ab33 438 mbedtls_printf( "\n" );
be_bryan 0:b74591d5ab33 439
be_bryan 0:b74591d5ab33 440 exit:
be_bryan 0:b74591d5ab33 441 mbedtls_sha1_free( &ctx );
be_bryan 0:b74591d5ab33 442
be_bryan 0:b74591d5ab33 443 return( ret );
be_bryan 0:b74591d5ab33 444 }
be_bryan 0:b74591d5ab33 445
be_bryan 0:b74591d5ab33 446 #endif /* MBEDTLS_SELF_TEST */
be_bryan 0:b74591d5ab33 447
be_bryan 0:b74591d5ab33 448 #endif /* MBEDTLS_SHA1_C */