Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/mbedtls/src/sha1.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1 /*
marcozecchini 0:9fca2b23d0ba 2 * FIPS-180-1 compliant SHA-1 implementation
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 5 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 6 *
marcozecchini 0:9fca2b23d0ba 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 8 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 9 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 12 *
marcozecchini 0:9fca2b23d0ba 13 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 16 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 17 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 18 *
marcozecchini 0:9fca2b23d0ba 19 * This file is part of mbed TLS (https://tls.mbed.org)
marcozecchini 0:9fca2b23d0ba 20 */
marcozecchini 0:9fca2b23d0ba 21 /*
marcozecchini 0:9fca2b23d0ba 22 * The SHA-1 standard was published by NIST in 1993.
marcozecchini 0:9fca2b23d0ba 23 *
marcozecchini 0:9fca2b23d0ba 24 * http://www.itl.nist.gov/fipspubs/fip180-1.htm
marcozecchini 0:9fca2b23d0ba 25 */
marcozecchini 0:9fca2b23d0ba 26
marcozecchini 0:9fca2b23d0ba 27 #if !defined(MBEDTLS_CONFIG_FILE)
marcozecchini 0:9fca2b23d0ba 28 #include "mbedtls/config.h"
marcozecchini 0:9fca2b23d0ba 29 #else
marcozecchini 0:9fca2b23d0ba 30 #include MBEDTLS_CONFIG_FILE
marcozecchini 0:9fca2b23d0ba 31 #endif
marcozecchini 0:9fca2b23d0ba 32
marcozecchini 0:9fca2b23d0ba 33 #if defined(MBEDTLS_SHA1_C)
marcozecchini 0:9fca2b23d0ba 34
marcozecchini 0:9fca2b23d0ba 35 #include "mbedtls/sha1.h"
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 #include <string.h>
marcozecchini 0:9fca2b23d0ba 38
marcozecchini 0:9fca2b23d0ba 39 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 40 #if defined(MBEDTLS_PLATFORM_C)
marcozecchini 0:9fca2b23d0ba 41 #include "mbedtls/platform.h"
marcozecchini 0:9fca2b23d0ba 42 #else
marcozecchini 0:9fca2b23d0ba 43 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 44 #define mbedtls_printf printf
marcozecchini 0:9fca2b23d0ba 45 #endif /* MBEDTLS_PLATFORM_C */
marcozecchini 0:9fca2b23d0ba 46 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 #if !defined(MBEDTLS_SHA1_ALT)
marcozecchini 0:9fca2b23d0ba 49
marcozecchini 0:9fca2b23d0ba 50 /* Implementation that should never be optimized out by the compiler */
marcozecchini 0:9fca2b23d0ba 51 static void mbedtls_zeroize( void *v, size_t n ) {
marcozecchini 0:9fca2b23d0ba 52 volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
marcozecchini 0:9fca2b23d0ba 53 }
marcozecchini 0:9fca2b23d0ba 54
marcozecchini 0:9fca2b23d0ba 55 /*
marcozecchini 0:9fca2b23d0ba 56 * 32-bit integer manipulation macros (big endian)
marcozecchini 0:9fca2b23d0ba 57 */
marcozecchini 0:9fca2b23d0ba 58 #ifndef GET_UINT32_BE
marcozecchini 0:9fca2b23d0ba 59 #define GET_UINT32_BE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 60 { \
marcozecchini 0:9fca2b23d0ba 61 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
marcozecchini 0:9fca2b23d0ba 62 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
marcozecchini 0:9fca2b23d0ba 63 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
marcozecchini 0:9fca2b23d0ba 64 | ( (uint32_t) (b)[(i) + 3] ); \
marcozecchini 0:9fca2b23d0ba 65 }
marcozecchini 0:9fca2b23d0ba 66 #endif
marcozecchini 0:9fca2b23d0ba 67
marcozecchini 0:9fca2b23d0ba 68 #ifndef PUT_UINT32_BE
marcozecchini 0:9fca2b23d0ba 69 #define PUT_UINT32_BE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 70 { \
marcozecchini 0:9fca2b23d0ba 71 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
marcozecchini 0:9fca2b23d0ba 72 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
marcozecchini 0:9fca2b23d0ba 73 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
marcozecchini 0:9fca2b23d0ba 74 (b)[(i) + 3] = (unsigned char) ( (n) ); \
marcozecchini 0:9fca2b23d0ba 75 }
marcozecchini 0:9fca2b23d0ba 76 #endif
marcozecchini 0:9fca2b23d0ba 77
marcozecchini 0:9fca2b23d0ba 78 void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
marcozecchini 0:9fca2b23d0ba 79 {
marcozecchini 0:9fca2b23d0ba 80 memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
marcozecchini 0:9fca2b23d0ba 81 }
marcozecchini 0:9fca2b23d0ba 82
marcozecchini 0:9fca2b23d0ba 83 void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
marcozecchini 0:9fca2b23d0ba 84 {
marcozecchini 0:9fca2b23d0ba 85 if( ctx == NULL )
marcozecchini 0:9fca2b23d0ba 86 return;
marcozecchini 0:9fca2b23d0ba 87
marcozecchini 0:9fca2b23d0ba 88 mbedtls_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
marcozecchini 0:9fca2b23d0ba 89 }
marcozecchini 0:9fca2b23d0ba 90
marcozecchini 0:9fca2b23d0ba 91 void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
marcozecchini 0:9fca2b23d0ba 92 const mbedtls_sha1_context *src )
marcozecchini 0:9fca2b23d0ba 93 {
marcozecchini 0:9fca2b23d0ba 94 *dst = *src;
marcozecchini 0:9fca2b23d0ba 95 }
marcozecchini 0:9fca2b23d0ba 96
marcozecchini 0:9fca2b23d0ba 97 /*
marcozecchini 0:9fca2b23d0ba 98 * SHA-1 context setup
marcozecchini 0:9fca2b23d0ba 99 */
marcozecchini 0:9fca2b23d0ba 100 void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
marcozecchini 0:9fca2b23d0ba 101 {
marcozecchini 0:9fca2b23d0ba 102 ctx->total[0] = 0;
marcozecchini 0:9fca2b23d0ba 103 ctx->total[1] = 0;
marcozecchini 0:9fca2b23d0ba 104
marcozecchini 0:9fca2b23d0ba 105 ctx->state[0] = 0x67452301;
marcozecchini 0:9fca2b23d0ba 106 ctx->state[1] = 0xEFCDAB89;
marcozecchini 0:9fca2b23d0ba 107 ctx->state[2] = 0x98BADCFE;
marcozecchini 0:9fca2b23d0ba 108 ctx->state[3] = 0x10325476;
marcozecchini 0:9fca2b23d0ba 109 ctx->state[4] = 0xC3D2E1F0;
marcozecchini 0:9fca2b23d0ba 110 }
marcozecchini 0:9fca2b23d0ba 111
marcozecchini 0:9fca2b23d0ba 112 #if !defined(MBEDTLS_SHA1_PROCESS_ALT)
marcozecchini 0:9fca2b23d0ba 113 void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] )
marcozecchini 0:9fca2b23d0ba 114 {
marcozecchini 0:9fca2b23d0ba 115 uint32_t temp, W[16], A, B, C, D, E;
marcozecchini 0:9fca2b23d0ba 116
marcozecchini 0:9fca2b23d0ba 117 GET_UINT32_BE( W[ 0], data, 0 );
marcozecchini 0:9fca2b23d0ba 118 GET_UINT32_BE( W[ 1], data, 4 );
marcozecchini 0:9fca2b23d0ba 119 GET_UINT32_BE( W[ 2], data, 8 );
marcozecchini 0:9fca2b23d0ba 120 GET_UINT32_BE( W[ 3], data, 12 );
marcozecchini 0:9fca2b23d0ba 121 GET_UINT32_BE( W[ 4], data, 16 );
marcozecchini 0:9fca2b23d0ba 122 GET_UINT32_BE( W[ 5], data, 20 );
marcozecchini 0:9fca2b23d0ba 123 GET_UINT32_BE( W[ 6], data, 24 );
marcozecchini 0:9fca2b23d0ba 124 GET_UINT32_BE( W[ 7], data, 28 );
marcozecchini 0:9fca2b23d0ba 125 GET_UINT32_BE( W[ 8], data, 32 );
marcozecchini 0:9fca2b23d0ba 126 GET_UINT32_BE( W[ 9], data, 36 );
marcozecchini 0:9fca2b23d0ba 127 GET_UINT32_BE( W[10], data, 40 );
marcozecchini 0:9fca2b23d0ba 128 GET_UINT32_BE( W[11], data, 44 );
marcozecchini 0:9fca2b23d0ba 129 GET_UINT32_BE( W[12], data, 48 );
marcozecchini 0:9fca2b23d0ba 130 GET_UINT32_BE( W[13], data, 52 );
marcozecchini 0:9fca2b23d0ba 131 GET_UINT32_BE( W[14], data, 56 );
marcozecchini 0:9fca2b23d0ba 132 GET_UINT32_BE( W[15], data, 60 );
marcozecchini 0:9fca2b23d0ba 133
marcozecchini 0:9fca2b23d0ba 134 #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
marcozecchini 0:9fca2b23d0ba 135
marcozecchini 0:9fca2b23d0ba 136 #define R(t) \
marcozecchini 0:9fca2b23d0ba 137 ( \
marcozecchini 0:9fca2b23d0ba 138 temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
marcozecchini 0:9fca2b23d0ba 139 W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
marcozecchini 0:9fca2b23d0ba 140 ( W[t & 0x0F] = S(temp,1) ) \
marcozecchini 0:9fca2b23d0ba 141 )
marcozecchini 0:9fca2b23d0ba 142
marcozecchini 0:9fca2b23d0ba 143 #define P(a,b,c,d,e,x) \
marcozecchini 0:9fca2b23d0ba 144 { \
marcozecchini 0:9fca2b23d0ba 145 e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
marcozecchini 0:9fca2b23d0ba 146 }
marcozecchini 0:9fca2b23d0ba 147
marcozecchini 0:9fca2b23d0ba 148 A = ctx->state[0];
marcozecchini 0:9fca2b23d0ba 149 B = ctx->state[1];
marcozecchini 0:9fca2b23d0ba 150 C = ctx->state[2];
marcozecchini 0:9fca2b23d0ba 151 D = ctx->state[3];
marcozecchini 0:9fca2b23d0ba 152 E = ctx->state[4];
marcozecchini 0:9fca2b23d0ba 153
marcozecchini 0:9fca2b23d0ba 154 #define F(x,y,z) (z ^ (x & (y ^ z)))
marcozecchini 0:9fca2b23d0ba 155 #define K 0x5A827999
marcozecchini 0:9fca2b23d0ba 156
marcozecchini 0:9fca2b23d0ba 157 P( A, B, C, D, E, W[0] );
marcozecchini 0:9fca2b23d0ba 158 P( E, A, B, C, D, W[1] );
marcozecchini 0:9fca2b23d0ba 159 P( D, E, A, B, C, W[2] );
marcozecchini 0:9fca2b23d0ba 160 P( C, D, E, A, B, W[3] );
marcozecchini 0:9fca2b23d0ba 161 P( B, C, D, E, A, W[4] );
marcozecchini 0:9fca2b23d0ba 162 P( A, B, C, D, E, W[5] );
marcozecchini 0:9fca2b23d0ba 163 P( E, A, B, C, D, W[6] );
marcozecchini 0:9fca2b23d0ba 164 P( D, E, A, B, C, W[7] );
marcozecchini 0:9fca2b23d0ba 165 P( C, D, E, A, B, W[8] );
marcozecchini 0:9fca2b23d0ba 166 P( B, C, D, E, A, W[9] );
marcozecchini 0:9fca2b23d0ba 167 P( A, B, C, D, E, W[10] );
marcozecchini 0:9fca2b23d0ba 168 P( E, A, B, C, D, W[11] );
marcozecchini 0:9fca2b23d0ba 169 P( D, E, A, B, C, W[12] );
marcozecchini 0:9fca2b23d0ba 170 P( C, D, E, A, B, W[13] );
marcozecchini 0:9fca2b23d0ba 171 P( B, C, D, E, A, W[14] );
marcozecchini 0:9fca2b23d0ba 172 P( A, B, C, D, E, W[15] );
marcozecchini 0:9fca2b23d0ba 173 P( E, A, B, C, D, R(16) );
marcozecchini 0:9fca2b23d0ba 174 P( D, E, A, B, C, R(17) );
marcozecchini 0:9fca2b23d0ba 175 P( C, D, E, A, B, R(18) );
marcozecchini 0:9fca2b23d0ba 176 P( B, C, D, E, A, R(19) );
marcozecchini 0:9fca2b23d0ba 177
marcozecchini 0:9fca2b23d0ba 178 #undef K
marcozecchini 0:9fca2b23d0ba 179 #undef F
marcozecchini 0:9fca2b23d0ba 180
marcozecchini 0:9fca2b23d0ba 181 #define F(x,y,z) (x ^ y ^ z)
marcozecchini 0:9fca2b23d0ba 182 #define K 0x6ED9EBA1
marcozecchini 0:9fca2b23d0ba 183
marcozecchini 0:9fca2b23d0ba 184 P( A, B, C, D, E, R(20) );
marcozecchini 0:9fca2b23d0ba 185 P( E, A, B, C, D, R(21) );
marcozecchini 0:9fca2b23d0ba 186 P( D, E, A, B, C, R(22) );
marcozecchini 0:9fca2b23d0ba 187 P( C, D, E, A, B, R(23) );
marcozecchini 0:9fca2b23d0ba 188 P( B, C, D, E, A, R(24) );
marcozecchini 0:9fca2b23d0ba 189 P( A, B, C, D, E, R(25) );
marcozecchini 0:9fca2b23d0ba 190 P( E, A, B, C, D, R(26) );
marcozecchini 0:9fca2b23d0ba 191 P( D, E, A, B, C, R(27) );
marcozecchini 0:9fca2b23d0ba 192 P( C, D, E, A, B, R(28) );
marcozecchini 0:9fca2b23d0ba 193 P( B, C, D, E, A, R(29) );
marcozecchini 0:9fca2b23d0ba 194 P( A, B, C, D, E, R(30) );
marcozecchini 0:9fca2b23d0ba 195 P( E, A, B, C, D, R(31) );
marcozecchini 0:9fca2b23d0ba 196 P( D, E, A, B, C, R(32) );
marcozecchini 0:9fca2b23d0ba 197 P( C, D, E, A, B, R(33) );
marcozecchini 0:9fca2b23d0ba 198 P( B, C, D, E, A, R(34) );
marcozecchini 0:9fca2b23d0ba 199 P( A, B, C, D, E, R(35) );
marcozecchini 0:9fca2b23d0ba 200 P( E, A, B, C, D, R(36) );
marcozecchini 0:9fca2b23d0ba 201 P( D, E, A, B, C, R(37) );
marcozecchini 0:9fca2b23d0ba 202 P( C, D, E, A, B, R(38) );
marcozecchini 0:9fca2b23d0ba 203 P( B, C, D, E, A, R(39) );
marcozecchini 0:9fca2b23d0ba 204
marcozecchini 0:9fca2b23d0ba 205 #undef K
marcozecchini 0:9fca2b23d0ba 206 #undef F
marcozecchini 0:9fca2b23d0ba 207
marcozecchini 0:9fca2b23d0ba 208 #define F(x,y,z) ((x & y) | (z & (x | y)))
marcozecchini 0:9fca2b23d0ba 209 #define K 0x8F1BBCDC
marcozecchini 0:9fca2b23d0ba 210
marcozecchini 0:9fca2b23d0ba 211 P( A, B, C, D, E, R(40) );
marcozecchini 0:9fca2b23d0ba 212 P( E, A, B, C, D, R(41) );
marcozecchini 0:9fca2b23d0ba 213 P( D, E, A, B, C, R(42) );
marcozecchini 0:9fca2b23d0ba 214 P( C, D, E, A, B, R(43) );
marcozecchini 0:9fca2b23d0ba 215 P( B, C, D, E, A, R(44) );
marcozecchini 0:9fca2b23d0ba 216 P( A, B, C, D, E, R(45) );
marcozecchini 0:9fca2b23d0ba 217 P( E, A, B, C, D, R(46) );
marcozecchini 0:9fca2b23d0ba 218 P( D, E, A, B, C, R(47) );
marcozecchini 0:9fca2b23d0ba 219 P( C, D, E, A, B, R(48) );
marcozecchini 0:9fca2b23d0ba 220 P( B, C, D, E, A, R(49) );
marcozecchini 0:9fca2b23d0ba 221 P( A, B, C, D, E, R(50) );
marcozecchini 0:9fca2b23d0ba 222 P( E, A, B, C, D, R(51) );
marcozecchini 0:9fca2b23d0ba 223 P( D, E, A, B, C, R(52) );
marcozecchini 0:9fca2b23d0ba 224 P( C, D, E, A, B, R(53) );
marcozecchini 0:9fca2b23d0ba 225 P( B, C, D, E, A, R(54) );
marcozecchini 0:9fca2b23d0ba 226 P( A, B, C, D, E, R(55) );
marcozecchini 0:9fca2b23d0ba 227 P( E, A, B, C, D, R(56) );
marcozecchini 0:9fca2b23d0ba 228 P( D, E, A, B, C, R(57) );
marcozecchini 0:9fca2b23d0ba 229 P( C, D, E, A, B, R(58) );
marcozecchini 0:9fca2b23d0ba 230 P( B, C, D, E, A, R(59) );
marcozecchini 0:9fca2b23d0ba 231
marcozecchini 0:9fca2b23d0ba 232 #undef K
marcozecchini 0:9fca2b23d0ba 233 #undef F
marcozecchini 0:9fca2b23d0ba 234
marcozecchini 0:9fca2b23d0ba 235 #define F(x,y,z) (x ^ y ^ z)
marcozecchini 0:9fca2b23d0ba 236 #define K 0xCA62C1D6
marcozecchini 0:9fca2b23d0ba 237
marcozecchini 0:9fca2b23d0ba 238 P( A, B, C, D, E, R(60) );
marcozecchini 0:9fca2b23d0ba 239 P( E, A, B, C, D, R(61) );
marcozecchini 0:9fca2b23d0ba 240 P( D, E, A, B, C, R(62) );
marcozecchini 0:9fca2b23d0ba 241 P( C, D, E, A, B, R(63) );
marcozecchini 0:9fca2b23d0ba 242 P( B, C, D, E, A, R(64) );
marcozecchini 0:9fca2b23d0ba 243 P( A, B, C, D, E, R(65) );
marcozecchini 0:9fca2b23d0ba 244 P( E, A, B, C, D, R(66) );
marcozecchini 0:9fca2b23d0ba 245 P( D, E, A, B, C, R(67) );
marcozecchini 0:9fca2b23d0ba 246 P( C, D, E, A, B, R(68) );
marcozecchini 0:9fca2b23d0ba 247 P( B, C, D, E, A, R(69) );
marcozecchini 0:9fca2b23d0ba 248 P( A, B, C, D, E, R(70) );
marcozecchini 0:9fca2b23d0ba 249 P( E, A, B, C, D, R(71) );
marcozecchini 0:9fca2b23d0ba 250 P( D, E, A, B, C, R(72) );
marcozecchini 0:9fca2b23d0ba 251 P( C, D, E, A, B, R(73) );
marcozecchini 0:9fca2b23d0ba 252 P( B, C, D, E, A, R(74) );
marcozecchini 0:9fca2b23d0ba 253 P( A, B, C, D, E, R(75) );
marcozecchini 0:9fca2b23d0ba 254 P( E, A, B, C, D, R(76) );
marcozecchini 0:9fca2b23d0ba 255 P( D, E, A, B, C, R(77) );
marcozecchini 0:9fca2b23d0ba 256 P( C, D, E, A, B, R(78) );
marcozecchini 0:9fca2b23d0ba 257 P( B, C, D, E, A, R(79) );
marcozecchini 0:9fca2b23d0ba 258
marcozecchini 0:9fca2b23d0ba 259 #undef K
marcozecchini 0:9fca2b23d0ba 260 #undef F
marcozecchini 0:9fca2b23d0ba 261
marcozecchini 0:9fca2b23d0ba 262 ctx->state[0] += A;
marcozecchini 0:9fca2b23d0ba 263 ctx->state[1] += B;
marcozecchini 0:9fca2b23d0ba 264 ctx->state[2] += C;
marcozecchini 0:9fca2b23d0ba 265 ctx->state[3] += D;
marcozecchini 0:9fca2b23d0ba 266 ctx->state[4] += E;
marcozecchini 0:9fca2b23d0ba 267 }
marcozecchini 0:9fca2b23d0ba 268 #endif /* !MBEDTLS_SHA1_PROCESS_ALT */
marcozecchini 0:9fca2b23d0ba 269
marcozecchini 0:9fca2b23d0ba 270 /*
marcozecchini 0:9fca2b23d0ba 271 * SHA-1 process buffer
marcozecchini 0:9fca2b23d0ba 272 */
marcozecchini 0:9fca2b23d0ba 273 void mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen )
marcozecchini 0:9fca2b23d0ba 274 {
marcozecchini 0:9fca2b23d0ba 275 size_t fill;
marcozecchini 0:9fca2b23d0ba 276 uint32_t left;
marcozecchini 0:9fca2b23d0ba 277
marcozecchini 0:9fca2b23d0ba 278 if( ilen == 0 )
marcozecchini 0:9fca2b23d0ba 279 return;
marcozecchini 0:9fca2b23d0ba 280
marcozecchini 0:9fca2b23d0ba 281 left = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 282 fill = 64 - left;
marcozecchini 0:9fca2b23d0ba 283
marcozecchini 0:9fca2b23d0ba 284 ctx->total[0] += (uint32_t) ilen;
marcozecchini 0:9fca2b23d0ba 285 ctx->total[0] &= 0xFFFFFFFF;
marcozecchini 0:9fca2b23d0ba 286
marcozecchini 0:9fca2b23d0ba 287 if( ctx->total[0] < (uint32_t) ilen )
marcozecchini 0:9fca2b23d0ba 288 ctx->total[1]++;
marcozecchini 0:9fca2b23d0ba 289
marcozecchini 0:9fca2b23d0ba 290 if( left && ilen >= fill )
marcozecchini 0:9fca2b23d0ba 291 {
marcozecchini 0:9fca2b23d0ba 292 memcpy( (void *) (ctx->buffer + left), input, fill );
marcozecchini 0:9fca2b23d0ba 293 mbedtls_sha1_process( ctx, ctx->buffer );
marcozecchini 0:9fca2b23d0ba 294 input += fill;
marcozecchini 0:9fca2b23d0ba 295 ilen -= fill;
marcozecchini 0:9fca2b23d0ba 296 left = 0;
marcozecchini 0:9fca2b23d0ba 297 }
marcozecchini 0:9fca2b23d0ba 298
marcozecchini 0:9fca2b23d0ba 299 while( ilen >= 64 )
marcozecchini 0:9fca2b23d0ba 300 {
marcozecchini 0:9fca2b23d0ba 301 mbedtls_sha1_process( ctx, input );
marcozecchini 0:9fca2b23d0ba 302 input += 64;
marcozecchini 0:9fca2b23d0ba 303 ilen -= 64;
marcozecchini 0:9fca2b23d0ba 304 }
marcozecchini 0:9fca2b23d0ba 305
marcozecchini 0:9fca2b23d0ba 306 if( ilen > 0 )
marcozecchini 0:9fca2b23d0ba 307 memcpy( (void *) (ctx->buffer + left), input, ilen );
marcozecchini 0:9fca2b23d0ba 308 }
marcozecchini 0:9fca2b23d0ba 309
marcozecchini 0:9fca2b23d0ba 310 static const unsigned char sha1_padding[64] =
marcozecchini 0:9fca2b23d0ba 311 {
marcozecchini 0:9fca2b23d0ba 312 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
marcozecchini 0:9fca2b23d0ba 316 };
marcozecchini 0:9fca2b23d0ba 317
marcozecchini 0:9fca2b23d0ba 318 /*
marcozecchini 0:9fca2b23d0ba 319 * SHA-1 final digest
marcozecchini 0:9fca2b23d0ba 320 */
marcozecchini 0:9fca2b23d0ba 321 void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] )
marcozecchini 0:9fca2b23d0ba 322 {
marcozecchini 0:9fca2b23d0ba 323 uint32_t last, padn;
marcozecchini 0:9fca2b23d0ba 324 uint32_t high, low;
marcozecchini 0:9fca2b23d0ba 325 unsigned char msglen[8];
marcozecchini 0:9fca2b23d0ba 326
marcozecchini 0:9fca2b23d0ba 327 high = ( ctx->total[0] >> 29 )
marcozecchini 0:9fca2b23d0ba 328 | ( ctx->total[1] << 3 );
marcozecchini 0:9fca2b23d0ba 329 low = ( ctx->total[0] << 3 );
marcozecchini 0:9fca2b23d0ba 330
marcozecchini 0:9fca2b23d0ba 331 PUT_UINT32_BE( high, msglen, 0 );
marcozecchini 0:9fca2b23d0ba 332 PUT_UINT32_BE( low, msglen, 4 );
marcozecchini 0:9fca2b23d0ba 333
marcozecchini 0:9fca2b23d0ba 334 last = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 335 padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
marcozecchini 0:9fca2b23d0ba 336
marcozecchini 0:9fca2b23d0ba 337 mbedtls_sha1_update( ctx, sha1_padding, padn );
marcozecchini 0:9fca2b23d0ba 338 mbedtls_sha1_update( ctx, msglen, 8 );
marcozecchini 0:9fca2b23d0ba 339
marcozecchini 0:9fca2b23d0ba 340 PUT_UINT32_BE( ctx->state[0], output, 0 );
marcozecchini 0:9fca2b23d0ba 341 PUT_UINT32_BE( ctx->state[1], output, 4 );
marcozecchini 0:9fca2b23d0ba 342 PUT_UINT32_BE( ctx->state[2], output, 8 );
marcozecchini 0:9fca2b23d0ba 343 PUT_UINT32_BE( ctx->state[3], output, 12 );
marcozecchini 0:9fca2b23d0ba 344 PUT_UINT32_BE( ctx->state[4], output, 16 );
marcozecchini 0:9fca2b23d0ba 345 }
marcozecchini 0:9fca2b23d0ba 346
marcozecchini 0:9fca2b23d0ba 347 #endif /* !MBEDTLS_SHA1_ALT */
marcozecchini 0:9fca2b23d0ba 348
marcozecchini 0:9fca2b23d0ba 349 /*
marcozecchini 0:9fca2b23d0ba 350 * output = SHA-1( input buffer )
marcozecchini 0:9fca2b23d0ba 351 */
marcozecchini 0:9fca2b23d0ba 352 void mbedtls_sha1( const unsigned char *input, size_t ilen, unsigned char output[20] )
marcozecchini 0:9fca2b23d0ba 353 {
marcozecchini 0:9fca2b23d0ba 354 mbedtls_sha1_context ctx;
marcozecchini 0:9fca2b23d0ba 355
marcozecchini 0:9fca2b23d0ba 356 mbedtls_sha1_init( &ctx );
marcozecchini 0:9fca2b23d0ba 357 mbedtls_sha1_starts( &ctx );
marcozecchini 0:9fca2b23d0ba 358 mbedtls_sha1_update( &ctx, input, ilen );
marcozecchini 0:9fca2b23d0ba 359 mbedtls_sha1_finish( &ctx, output );
marcozecchini 0:9fca2b23d0ba 360 mbedtls_sha1_free( &ctx );
marcozecchini 0:9fca2b23d0ba 361 }
marcozecchini 0:9fca2b23d0ba 362
marcozecchini 0:9fca2b23d0ba 363 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 364 /*
marcozecchini 0:9fca2b23d0ba 365 * FIPS-180-1 test vectors
marcozecchini 0:9fca2b23d0ba 366 */
marcozecchini 0:9fca2b23d0ba 367 static const unsigned char sha1_test_buf[3][57] =
marcozecchini 0:9fca2b23d0ba 368 {
marcozecchini 0:9fca2b23d0ba 369 { "abc" },
marcozecchini 0:9fca2b23d0ba 370 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
marcozecchini 0:9fca2b23d0ba 371 { "" }
marcozecchini 0:9fca2b23d0ba 372 };
marcozecchini 0:9fca2b23d0ba 373
marcozecchini 0:9fca2b23d0ba 374 static const int sha1_test_buflen[3] =
marcozecchini 0:9fca2b23d0ba 375 {
marcozecchini 0:9fca2b23d0ba 376 3, 56, 1000
marcozecchini 0:9fca2b23d0ba 377 };
marcozecchini 0:9fca2b23d0ba 378
marcozecchini 0:9fca2b23d0ba 379 static const unsigned char sha1_test_sum[3][20] =
marcozecchini 0:9fca2b23d0ba 380 {
marcozecchini 0:9fca2b23d0ba 381 { 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
marcozecchini 0:9fca2b23d0ba 382 0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
marcozecchini 0:9fca2b23d0ba 383 { 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
marcozecchini 0:9fca2b23d0ba 384 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
marcozecchini 0:9fca2b23d0ba 385 { 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
marcozecchini 0:9fca2b23d0ba 386 0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
marcozecchini 0:9fca2b23d0ba 387 };
marcozecchini 0:9fca2b23d0ba 388
marcozecchini 0:9fca2b23d0ba 389 /*
marcozecchini 0:9fca2b23d0ba 390 * Checkup routine
marcozecchini 0:9fca2b23d0ba 391 */
marcozecchini 0:9fca2b23d0ba 392 int mbedtls_sha1_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 393 {
marcozecchini 0:9fca2b23d0ba 394 int i, j, buflen, ret = 0;
marcozecchini 0:9fca2b23d0ba 395 unsigned char buf[1024];
marcozecchini 0:9fca2b23d0ba 396 unsigned char sha1sum[20];
marcozecchini 0:9fca2b23d0ba 397 mbedtls_sha1_context ctx;
marcozecchini 0:9fca2b23d0ba 398
marcozecchini 0:9fca2b23d0ba 399 mbedtls_sha1_init( &ctx );
marcozecchini 0:9fca2b23d0ba 400
marcozecchini 0:9fca2b23d0ba 401 /*
marcozecchini 0:9fca2b23d0ba 402 * SHA-1
marcozecchini 0:9fca2b23d0ba 403 */
marcozecchini 0:9fca2b23d0ba 404 for( i = 0; i < 3; i++ )
marcozecchini 0:9fca2b23d0ba 405 {
marcozecchini 0:9fca2b23d0ba 406 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 407 mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
marcozecchini 0:9fca2b23d0ba 408
marcozecchini 0:9fca2b23d0ba 409 mbedtls_sha1_starts( &ctx );
marcozecchini 0:9fca2b23d0ba 410
marcozecchini 0:9fca2b23d0ba 411 if( i == 2 )
marcozecchini 0:9fca2b23d0ba 412 {
marcozecchini 0:9fca2b23d0ba 413 memset( buf, 'a', buflen = 1000 );
marcozecchini 0:9fca2b23d0ba 414
marcozecchini 0:9fca2b23d0ba 415 for( j = 0; j < 1000; j++ )
marcozecchini 0:9fca2b23d0ba 416 mbedtls_sha1_update( &ctx, buf, buflen );
marcozecchini 0:9fca2b23d0ba 417 }
marcozecchini 0:9fca2b23d0ba 418 else
marcozecchini 0:9fca2b23d0ba 419 mbedtls_sha1_update( &ctx, sha1_test_buf[i],
marcozecchini 0:9fca2b23d0ba 420 sha1_test_buflen[i] );
marcozecchini 0:9fca2b23d0ba 421
marcozecchini 0:9fca2b23d0ba 422 mbedtls_sha1_finish( &ctx, sha1sum );
marcozecchini 0:9fca2b23d0ba 423
marcozecchini 0:9fca2b23d0ba 424 if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
marcozecchini 0:9fca2b23d0ba 425 {
marcozecchini 0:9fca2b23d0ba 426 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 427 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 428
marcozecchini 0:9fca2b23d0ba 429 ret = 1;
marcozecchini 0:9fca2b23d0ba 430 goto exit;
marcozecchini 0:9fca2b23d0ba 431 }
marcozecchini 0:9fca2b23d0ba 432
marcozecchini 0:9fca2b23d0ba 433 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 434 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 435 }
marcozecchini 0:9fca2b23d0ba 436
marcozecchini 0:9fca2b23d0ba 437 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 438 mbedtls_printf( "\n" );
marcozecchini 0:9fca2b23d0ba 439
marcozecchini 0:9fca2b23d0ba 440 exit:
marcozecchini 0:9fca2b23d0ba 441 mbedtls_sha1_free( &ctx );
marcozecchini 0:9fca2b23d0ba 442
marcozecchini 0:9fca2b23d0ba 443 return( ret );
marcozecchini 0:9fca2b23d0ba 444 }
marcozecchini 0:9fca2b23d0ba 445
marcozecchini 0:9fca2b23d0ba 446 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 447
marcozecchini 0:9fca2b23d0ba 448 #endif /* MBEDTLS_SHA1_C */