Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/mbedtls/src/md4.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 * RFC 1186/1320 compliant MD4 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 MD4 algorithm was designed by Ron Rivest in 1990.
marcozecchini 0:9fca2b23d0ba 23 *
marcozecchini 0:9fca2b23d0ba 24 * http://www.ietf.org/rfc/rfc1186.txt
marcozecchini 0:9fca2b23d0ba 25 * http://www.ietf.org/rfc/rfc1320.txt
marcozecchini 0:9fca2b23d0ba 26 */
marcozecchini 0:9fca2b23d0ba 27
marcozecchini 0:9fca2b23d0ba 28 #if !defined(MBEDTLS_CONFIG_FILE)
marcozecchini 0:9fca2b23d0ba 29 #include "mbedtls/config.h"
marcozecchini 0:9fca2b23d0ba 30 #else
marcozecchini 0:9fca2b23d0ba 31 #include MBEDTLS_CONFIG_FILE
marcozecchini 0:9fca2b23d0ba 32 #endif
marcozecchini 0:9fca2b23d0ba 33
marcozecchini 0:9fca2b23d0ba 34 #if defined(MBEDTLS_MD4_C)
marcozecchini 0:9fca2b23d0ba 35
marcozecchini 0:9fca2b23d0ba 36 #include "mbedtls/md4.h"
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 #include <string.h>
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 41 #if defined(MBEDTLS_PLATFORM_C)
marcozecchini 0:9fca2b23d0ba 42 #include "mbedtls/platform.h"
marcozecchini 0:9fca2b23d0ba 43 #else
marcozecchini 0:9fca2b23d0ba 44 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 45 #define mbedtls_printf printf
marcozecchini 0:9fca2b23d0ba 46 #endif /* MBEDTLS_PLATFORM_C */
marcozecchini 0:9fca2b23d0ba 47 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 48
marcozecchini 0:9fca2b23d0ba 49 #if !defined(MBEDTLS_MD4_ALT)
marcozecchini 0:9fca2b23d0ba 50
marcozecchini 0:9fca2b23d0ba 51 /* Implementation that should never be optimized out by the compiler */
marcozecchini 0:9fca2b23d0ba 52 static void mbedtls_zeroize( void *v, size_t n ) {
marcozecchini 0:9fca2b23d0ba 53 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
marcozecchini 0:9fca2b23d0ba 54 }
marcozecchini 0:9fca2b23d0ba 55
marcozecchini 0:9fca2b23d0ba 56 /*
marcozecchini 0:9fca2b23d0ba 57 * 32-bit integer manipulation macros (little endian)
marcozecchini 0:9fca2b23d0ba 58 */
marcozecchini 0:9fca2b23d0ba 59 #ifndef GET_UINT32_LE
marcozecchini 0:9fca2b23d0ba 60 #define GET_UINT32_LE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 61 { \
marcozecchini 0:9fca2b23d0ba 62 (n) = ( (uint32_t) (b)[(i) ] ) \
marcozecchini 0:9fca2b23d0ba 63 | ( (uint32_t) (b)[(i) + 1] << 8 ) \
marcozecchini 0:9fca2b23d0ba 64 | ( (uint32_t) (b)[(i) + 2] << 16 ) \
marcozecchini 0:9fca2b23d0ba 65 | ( (uint32_t) (b)[(i) + 3] << 24 ); \
marcozecchini 0:9fca2b23d0ba 66 }
marcozecchini 0:9fca2b23d0ba 67 #endif
marcozecchini 0:9fca2b23d0ba 68
marcozecchini 0:9fca2b23d0ba 69 #ifndef PUT_UINT32_LE
marcozecchini 0:9fca2b23d0ba 70 #define PUT_UINT32_LE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 71 { \
marcozecchini 0:9fca2b23d0ba 72 (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 73 (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 74 (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 75 (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
marcozecchini 0:9fca2b23d0ba 76 }
marcozecchini 0:9fca2b23d0ba 77 #endif
marcozecchini 0:9fca2b23d0ba 78
marcozecchini 0:9fca2b23d0ba 79 void mbedtls_md4_init( mbedtls_md4_context *ctx )
marcozecchini 0:9fca2b23d0ba 80 {
marcozecchini 0:9fca2b23d0ba 81 memset( ctx, 0, sizeof( mbedtls_md4_context ) );
marcozecchini 0:9fca2b23d0ba 82 }
marcozecchini 0:9fca2b23d0ba 83
marcozecchini 0:9fca2b23d0ba 84 void mbedtls_md4_free( mbedtls_md4_context *ctx )
marcozecchini 0:9fca2b23d0ba 85 {
marcozecchini 0:9fca2b23d0ba 86 if( ctx == NULL )
marcozecchini 0:9fca2b23d0ba 87 return;
marcozecchini 0:9fca2b23d0ba 88
marcozecchini 0:9fca2b23d0ba 89 mbedtls_zeroize( ctx, sizeof( mbedtls_md4_context ) );
marcozecchini 0:9fca2b23d0ba 90 }
marcozecchini 0:9fca2b23d0ba 91
marcozecchini 0:9fca2b23d0ba 92 void mbedtls_md4_clone( mbedtls_md4_context *dst,
marcozecchini 0:9fca2b23d0ba 93 const mbedtls_md4_context *src )
marcozecchini 0:9fca2b23d0ba 94 {
marcozecchini 0:9fca2b23d0ba 95 *dst = *src;
marcozecchini 0:9fca2b23d0ba 96 }
marcozecchini 0:9fca2b23d0ba 97
marcozecchini 0:9fca2b23d0ba 98 /*
marcozecchini 0:9fca2b23d0ba 99 * MD4 context setup
marcozecchini 0:9fca2b23d0ba 100 */
marcozecchini 0:9fca2b23d0ba 101 void mbedtls_md4_starts( mbedtls_md4_context *ctx )
marcozecchini 0:9fca2b23d0ba 102 {
marcozecchini 0:9fca2b23d0ba 103 ctx->total[0] = 0;
marcozecchini 0:9fca2b23d0ba 104 ctx->total[1] = 0;
marcozecchini 0:9fca2b23d0ba 105
marcozecchini 0:9fca2b23d0ba 106 ctx->state[0] = 0x67452301;
marcozecchini 0:9fca2b23d0ba 107 ctx->state[1] = 0xEFCDAB89;
marcozecchini 0:9fca2b23d0ba 108 ctx->state[2] = 0x98BADCFE;
marcozecchini 0:9fca2b23d0ba 109 ctx->state[3] = 0x10325476;
marcozecchini 0:9fca2b23d0ba 110 }
marcozecchini 0:9fca2b23d0ba 111
marcozecchini 0:9fca2b23d0ba 112 #if !defined(MBEDTLS_MD4_PROCESS_ALT)
marcozecchini 0:9fca2b23d0ba 113 void mbedtls_md4_process( mbedtls_md4_context *ctx, const unsigned char data[64] )
marcozecchini 0:9fca2b23d0ba 114 {
marcozecchini 0:9fca2b23d0ba 115 uint32_t X[16], A, B, C, D;
marcozecchini 0:9fca2b23d0ba 116
marcozecchini 0:9fca2b23d0ba 117 GET_UINT32_LE( X[ 0], data, 0 );
marcozecchini 0:9fca2b23d0ba 118 GET_UINT32_LE( X[ 1], data, 4 );
marcozecchini 0:9fca2b23d0ba 119 GET_UINT32_LE( X[ 2], data, 8 );
marcozecchini 0:9fca2b23d0ba 120 GET_UINT32_LE( X[ 3], data, 12 );
marcozecchini 0:9fca2b23d0ba 121 GET_UINT32_LE( X[ 4], data, 16 );
marcozecchini 0:9fca2b23d0ba 122 GET_UINT32_LE( X[ 5], data, 20 );
marcozecchini 0:9fca2b23d0ba 123 GET_UINT32_LE( X[ 6], data, 24 );
marcozecchini 0:9fca2b23d0ba 124 GET_UINT32_LE( X[ 7], data, 28 );
marcozecchini 0:9fca2b23d0ba 125 GET_UINT32_LE( X[ 8], data, 32 );
marcozecchini 0:9fca2b23d0ba 126 GET_UINT32_LE( X[ 9], data, 36 );
marcozecchini 0:9fca2b23d0ba 127 GET_UINT32_LE( X[10], data, 40 );
marcozecchini 0:9fca2b23d0ba 128 GET_UINT32_LE( X[11], data, 44 );
marcozecchini 0:9fca2b23d0ba 129 GET_UINT32_LE( X[12], data, 48 );
marcozecchini 0:9fca2b23d0ba 130 GET_UINT32_LE( X[13], data, 52 );
marcozecchini 0:9fca2b23d0ba 131 GET_UINT32_LE( X[14], data, 56 );
marcozecchini 0:9fca2b23d0ba 132 GET_UINT32_LE( X[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 A = ctx->state[0];
marcozecchini 0:9fca2b23d0ba 137 B = ctx->state[1];
marcozecchini 0:9fca2b23d0ba 138 C = ctx->state[2];
marcozecchini 0:9fca2b23d0ba 139 D = ctx->state[3];
marcozecchini 0:9fca2b23d0ba 140
marcozecchini 0:9fca2b23d0ba 141 #define F(x, y, z) ((x & y) | ((~x) & z))
marcozecchini 0:9fca2b23d0ba 142 #define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); }
marcozecchini 0:9fca2b23d0ba 143
marcozecchini 0:9fca2b23d0ba 144 P( A, B, C, D, X[ 0], 3 );
marcozecchini 0:9fca2b23d0ba 145 P( D, A, B, C, X[ 1], 7 );
marcozecchini 0:9fca2b23d0ba 146 P( C, D, A, B, X[ 2], 11 );
marcozecchini 0:9fca2b23d0ba 147 P( B, C, D, A, X[ 3], 19 );
marcozecchini 0:9fca2b23d0ba 148 P( A, B, C, D, X[ 4], 3 );
marcozecchini 0:9fca2b23d0ba 149 P( D, A, B, C, X[ 5], 7 );
marcozecchini 0:9fca2b23d0ba 150 P( C, D, A, B, X[ 6], 11 );
marcozecchini 0:9fca2b23d0ba 151 P( B, C, D, A, X[ 7], 19 );
marcozecchini 0:9fca2b23d0ba 152 P( A, B, C, D, X[ 8], 3 );
marcozecchini 0:9fca2b23d0ba 153 P( D, A, B, C, X[ 9], 7 );
marcozecchini 0:9fca2b23d0ba 154 P( C, D, A, B, X[10], 11 );
marcozecchini 0:9fca2b23d0ba 155 P( B, C, D, A, X[11], 19 );
marcozecchini 0:9fca2b23d0ba 156 P( A, B, C, D, X[12], 3 );
marcozecchini 0:9fca2b23d0ba 157 P( D, A, B, C, X[13], 7 );
marcozecchini 0:9fca2b23d0ba 158 P( C, D, A, B, X[14], 11 );
marcozecchini 0:9fca2b23d0ba 159 P( B, C, D, A, X[15], 19 );
marcozecchini 0:9fca2b23d0ba 160
marcozecchini 0:9fca2b23d0ba 161 #undef P
marcozecchini 0:9fca2b23d0ba 162 #undef F
marcozecchini 0:9fca2b23d0ba 163
marcozecchini 0:9fca2b23d0ba 164 #define F(x,y,z) ((x & y) | (x & z) | (y & z))
marcozecchini 0:9fca2b23d0ba 165 #define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); }
marcozecchini 0:9fca2b23d0ba 166
marcozecchini 0:9fca2b23d0ba 167 P( A, B, C, D, X[ 0], 3 );
marcozecchini 0:9fca2b23d0ba 168 P( D, A, B, C, X[ 4], 5 );
marcozecchini 0:9fca2b23d0ba 169 P( C, D, A, B, X[ 8], 9 );
marcozecchini 0:9fca2b23d0ba 170 P( B, C, D, A, X[12], 13 );
marcozecchini 0:9fca2b23d0ba 171 P( A, B, C, D, X[ 1], 3 );
marcozecchini 0:9fca2b23d0ba 172 P( D, A, B, C, X[ 5], 5 );
marcozecchini 0:9fca2b23d0ba 173 P( C, D, A, B, X[ 9], 9 );
marcozecchini 0:9fca2b23d0ba 174 P( B, C, D, A, X[13], 13 );
marcozecchini 0:9fca2b23d0ba 175 P( A, B, C, D, X[ 2], 3 );
marcozecchini 0:9fca2b23d0ba 176 P( D, A, B, C, X[ 6], 5 );
marcozecchini 0:9fca2b23d0ba 177 P( C, D, A, B, X[10], 9 );
marcozecchini 0:9fca2b23d0ba 178 P( B, C, D, A, X[14], 13 );
marcozecchini 0:9fca2b23d0ba 179 P( A, B, C, D, X[ 3], 3 );
marcozecchini 0:9fca2b23d0ba 180 P( D, A, B, C, X[ 7], 5 );
marcozecchini 0:9fca2b23d0ba 181 P( C, D, A, B, X[11], 9 );
marcozecchini 0:9fca2b23d0ba 182 P( B, C, D, A, X[15], 13 );
marcozecchini 0:9fca2b23d0ba 183
marcozecchini 0:9fca2b23d0ba 184 #undef P
marcozecchini 0:9fca2b23d0ba 185 #undef F
marcozecchini 0:9fca2b23d0ba 186
marcozecchini 0:9fca2b23d0ba 187 #define F(x,y,z) (x ^ y ^ z)
marcozecchini 0:9fca2b23d0ba 188 #define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); }
marcozecchini 0:9fca2b23d0ba 189
marcozecchini 0:9fca2b23d0ba 190 P( A, B, C, D, X[ 0], 3 );
marcozecchini 0:9fca2b23d0ba 191 P( D, A, B, C, X[ 8], 9 );
marcozecchini 0:9fca2b23d0ba 192 P( C, D, A, B, X[ 4], 11 );
marcozecchini 0:9fca2b23d0ba 193 P( B, C, D, A, X[12], 15 );
marcozecchini 0:9fca2b23d0ba 194 P( A, B, C, D, X[ 2], 3 );
marcozecchini 0:9fca2b23d0ba 195 P( D, A, B, C, X[10], 9 );
marcozecchini 0:9fca2b23d0ba 196 P( C, D, A, B, X[ 6], 11 );
marcozecchini 0:9fca2b23d0ba 197 P( B, C, D, A, X[14], 15 );
marcozecchini 0:9fca2b23d0ba 198 P( A, B, C, D, X[ 1], 3 );
marcozecchini 0:9fca2b23d0ba 199 P( D, A, B, C, X[ 9], 9 );
marcozecchini 0:9fca2b23d0ba 200 P( C, D, A, B, X[ 5], 11 );
marcozecchini 0:9fca2b23d0ba 201 P( B, C, D, A, X[13], 15 );
marcozecchini 0:9fca2b23d0ba 202 P( A, B, C, D, X[ 3], 3 );
marcozecchini 0:9fca2b23d0ba 203 P( D, A, B, C, X[11], 9 );
marcozecchini 0:9fca2b23d0ba 204 P( C, D, A, B, X[ 7], 11 );
marcozecchini 0:9fca2b23d0ba 205 P( B, C, D, A, X[15], 15 );
marcozecchini 0:9fca2b23d0ba 206
marcozecchini 0:9fca2b23d0ba 207 #undef F
marcozecchini 0:9fca2b23d0ba 208 #undef P
marcozecchini 0:9fca2b23d0ba 209
marcozecchini 0:9fca2b23d0ba 210 ctx->state[0] += A;
marcozecchini 0:9fca2b23d0ba 211 ctx->state[1] += B;
marcozecchini 0:9fca2b23d0ba 212 ctx->state[2] += C;
marcozecchini 0:9fca2b23d0ba 213 ctx->state[3] += D;
marcozecchini 0:9fca2b23d0ba 214 }
marcozecchini 0:9fca2b23d0ba 215 #endif /* !MBEDTLS_MD4_PROCESS_ALT */
marcozecchini 0:9fca2b23d0ba 216
marcozecchini 0:9fca2b23d0ba 217 /*
marcozecchini 0:9fca2b23d0ba 218 * MD4 process buffer
marcozecchini 0:9fca2b23d0ba 219 */
marcozecchini 0:9fca2b23d0ba 220 void mbedtls_md4_update( mbedtls_md4_context *ctx, const unsigned char *input, size_t ilen )
marcozecchini 0:9fca2b23d0ba 221 {
marcozecchini 0:9fca2b23d0ba 222 size_t fill;
marcozecchini 0:9fca2b23d0ba 223 uint32_t left;
marcozecchini 0:9fca2b23d0ba 224
marcozecchini 0:9fca2b23d0ba 225 if( ilen == 0 )
marcozecchini 0:9fca2b23d0ba 226 return;
marcozecchini 0:9fca2b23d0ba 227
marcozecchini 0:9fca2b23d0ba 228 left = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 229 fill = 64 - left;
marcozecchini 0:9fca2b23d0ba 230
marcozecchini 0:9fca2b23d0ba 231 ctx->total[0] += (uint32_t) ilen;
marcozecchini 0:9fca2b23d0ba 232 ctx->total[0] &= 0xFFFFFFFF;
marcozecchini 0:9fca2b23d0ba 233
marcozecchini 0:9fca2b23d0ba 234 if( ctx->total[0] < (uint32_t) ilen )
marcozecchini 0:9fca2b23d0ba 235 ctx->total[1]++;
marcozecchini 0:9fca2b23d0ba 236
marcozecchini 0:9fca2b23d0ba 237 if( left && ilen >= fill )
marcozecchini 0:9fca2b23d0ba 238 {
marcozecchini 0:9fca2b23d0ba 239 memcpy( (void *) (ctx->buffer + left),
marcozecchini 0:9fca2b23d0ba 240 (void *) input, fill );
marcozecchini 0:9fca2b23d0ba 241 mbedtls_md4_process( ctx, ctx->buffer );
marcozecchini 0:9fca2b23d0ba 242 input += fill;
marcozecchini 0:9fca2b23d0ba 243 ilen -= fill;
marcozecchini 0:9fca2b23d0ba 244 left = 0;
marcozecchini 0:9fca2b23d0ba 245 }
marcozecchini 0:9fca2b23d0ba 246
marcozecchini 0:9fca2b23d0ba 247 while( ilen >= 64 )
marcozecchini 0:9fca2b23d0ba 248 {
marcozecchini 0:9fca2b23d0ba 249 mbedtls_md4_process( ctx, input );
marcozecchini 0:9fca2b23d0ba 250 input += 64;
marcozecchini 0:9fca2b23d0ba 251 ilen -= 64;
marcozecchini 0:9fca2b23d0ba 252 }
marcozecchini 0:9fca2b23d0ba 253
marcozecchini 0:9fca2b23d0ba 254 if( ilen > 0 )
marcozecchini 0:9fca2b23d0ba 255 {
marcozecchini 0:9fca2b23d0ba 256 memcpy( (void *) (ctx->buffer + left),
marcozecchini 0:9fca2b23d0ba 257 (void *) input, ilen );
marcozecchini 0:9fca2b23d0ba 258 }
marcozecchini 0:9fca2b23d0ba 259 }
marcozecchini 0:9fca2b23d0ba 260
marcozecchini 0:9fca2b23d0ba 261 static const unsigned char md4_padding[64] =
marcozecchini 0:9fca2b23d0ba 262 {
marcozecchini 0:9fca2b23d0ba 263 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 264 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 265 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
marcozecchini 0:9fca2b23d0ba 266 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
marcozecchini 0:9fca2b23d0ba 267 };
marcozecchini 0:9fca2b23d0ba 268
marcozecchini 0:9fca2b23d0ba 269 /*
marcozecchini 0:9fca2b23d0ba 270 * MD4 final digest
marcozecchini 0:9fca2b23d0ba 271 */
marcozecchini 0:9fca2b23d0ba 272 void mbedtls_md4_finish( mbedtls_md4_context *ctx, unsigned char output[16] )
marcozecchini 0:9fca2b23d0ba 273 {
marcozecchini 0:9fca2b23d0ba 274 uint32_t last, padn;
marcozecchini 0:9fca2b23d0ba 275 uint32_t high, low;
marcozecchini 0:9fca2b23d0ba 276 unsigned char msglen[8];
marcozecchini 0:9fca2b23d0ba 277
marcozecchini 0:9fca2b23d0ba 278 high = ( ctx->total[0] >> 29 )
marcozecchini 0:9fca2b23d0ba 279 | ( ctx->total[1] << 3 );
marcozecchini 0:9fca2b23d0ba 280 low = ( ctx->total[0] << 3 );
marcozecchini 0:9fca2b23d0ba 281
marcozecchini 0:9fca2b23d0ba 282 PUT_UINT32_LE( low, msglen, 0 );
marcozecchini 0:9fca2b23d0ba 283 PUT_UINT32_LE( high, msglen, 4 );
marcozecchini 0:9fca2b23d0ba 284
marcozecchini 0:9fca2b23d0ba 285 last = ctx->total[0] & 0x3F;
marcozecchini 0:9fca2b23d0ba 286 padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
marcozecchini 0:9fca2b23d0ba 287
marcozecchini 0:9fca2b23d0ba 288 mbedtls_md4_update( ctx, (unsigned char *) md4_padding, padn );
marcozecchini 0:9fca2b23d0ba 289 mbedtls_md4_update( ctx, msglen, 8 );
marcozecchini 0:9fca2b23d0ba 290
marcozecchini 0:9fca2b23d0ba 291 PUT_UINT32_LE( ctx->state[0], output, 0 );
marcozecchini 0:9fca2b23d0ba 292 PUT_UINT32_LE( ctx->state[1], output, 4 );
marcozecchini 0:9fca2b23d0ba 293 PUT_UINT32_LE( ctx->state[2], output, 8 );
marcozecchini 0:9fca2b23d0ba 294 PUT_UINT32_LE( ctx->state[3], output, 12 );
marcozecchini 0:9fca2b23d0ba 295 }
marcozecchini 0:9fca2b23d0ba 296
marcozecchini 0:9fca2b23d0ba 297 #endif /* !MBEDTLS_MD4_ALT */
marcozecchini 0:9fca2b23d0ba 298
marcozecchini 0:9fca2b23d0ba 299 /*
marcozecchini 0:9fca2b23d0ba 300 * output = MD4( input buffer )
marcozecchini 0:9fca2b23d0ba 301 */
marcozecchini 0:9fca2b23d0ba 302 void mbedtls_md4( const unsigned char *input, size_t ilen, unsigned char output[16] )
marcozecchini 0:9fca2b23d0ba 303 {
marcozecchini 0:9fca2b23d0ba 304 mbedtls_md4_context ctx;
marcozecchini 0:9fca2b23d0ba 305
marcozecchini 0:9fca2b23d0ba 306 mbedtls_md4_init( &ctx );
marcozecchini 0:9fca2b23d0ba 307 mbedtls_md4_starts( &ctx );
marcozecchini 0:9fca2b23d0ba 308 mbedtls_md4_update( &ctx, input, ilen );
marcozecchini 0:9fca2b23d0ba 309 mbedtls_md4_finish( &ctx, output );
marcozecchini 0:9fca2b23d0ba 310 mbedtls_md4_free( &ctx );
marcozecchini 0:9fca2b23d0ba 311 }
marcozecchini 0:9fca2b23d0ba 312
marcozecchini 0:9fca2b23d0ba 313 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 314
marcozecchini 0:9fca2b23d0ba 315 /*
marcozecchini 0:9fca2b23d0ba 316 * RFC 1320 test vectors
marcozecchini 0:9fca2b23d0ba 317 */
marcozecchini 0:9fca2b23d0ba 318 static const char md4_test_str[7][81] =
marcozecchini 0:9fca2b23d0ba 319 {
marcozecchini 0:9fca2b23d0ba 320 { "" },
marcozecchini 0:9fca2b23d0ba 321 { "a" },
marcozecchini 0:9fca2b23d0ba 322 { "abc" },
marcozecchini 0:9fca2b23d0ba 323 { "message digest" },
marcozecchini 0:9fca2b23d0ba 324 { "abcdefghijklmnopqrstuvwxyz" },
marcozecchini 0:9fca2b23d0ba 325 { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
marcozecchini 0:9fca2b23d0ba 326 { "12345678901234567890123456789012345678901234567890123456789012" \
marcozecchini 0:9fca2b23d0ba 327 "345678901234567890" }
marcozecchini 0:9fca2b23d0ba 328 };
marcozecchini 0:9fca2b23d0ba 329
marcozecchini 0:9fca2b23d0ba 330 static const unsigned char md4_test_sum[7][16] =
marcozecchini 0:9fca2b23d0ba 331 {
marcozecchini 0:9fca2b23d0ba 332 { 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
marcozecchini 0:9fca2b23d0ba 333 0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
marcozecchini 0:9fca2b23d0ba 334 { 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
marcozecchini 0:9fca2b23d0ba 335 0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
marcozecchini 0:9fca2b23d0ba 336 { 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
marcozecchini 0:9fca2b23d0ba 337 0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
marcozecchini 0:9fca2b23d0ba 338 { 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
marcozecchini 0:9fca2b23d0ba 339 0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
marcozecchini 0:9fca2b23d0ba 340 { 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
marcozecchini 0:9fca2b23d0ba 341 0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
marcozecchini 0:9fca2b23d0ba 342 { 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
marcozecchini 0:9fca2b23d0ba 343 0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
marcozecchini 0:9fca2b23d0ba 344 { 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
marcozecchini 0:9fca2b23d0ba 345 0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
marcozecchini 0:9fca2b23d0ba 346 };
marcozecchini 0:9fca2b23d0ba 347
marcozecchini 0:9fca2b23d0ba 348 /*
marcozecchini 0:9fca2b23d0ba 349 * Checkup routine
marcozecchini 0:9fca2b23d0ba 350 */
marcozecchini 0:9fca2b23d0ba 351 int mbedtls_md4_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 352 {
marcozecchini 0:9fca2b23d0ba 353 int i;
marcozecchini 0:9fca2b23d0ba 354 unsigned char md4sum[16];
marcozecchini 0:9fca2b23d0ba 355
marcozecchini 0:9fca2b23d0ba 356 for( i = 0; i < 7; i++ )
marcozecchini 0:9fca2b23d0ba 357 {
marcozecchini 0:9fca2b23d0ba 358 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 359 mbedtls_printf( " MD4 test #%d: ", i + 1 );
marcozecchini 0:9fca2b23d0ba 360
marcozecchini 0:9fca2b23d0ba 361 mbedtls_md4( (unsigned char *) md4_test_str[i],
marcozecchini 0:9fca2b23d0ba 362 strlen( md4_test_str[i] ), md4sum );
marcozecchini 0:9fca2b23d0ba 363
marcozecchini 0:9fca2b23d0ba 364 if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 365 {
marcozecchini 0:9fca2b23d0ba 366 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 367 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 368
marcozecchini 0:9fca2b23d0ba 369 return( 1 );
marcozecchini 0:9fca2b23d0ba 370 }
marcozecchini 0:9fca2b23d0ba 371
marcozecchini 0:9fca2b23d0ba 372 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 373 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 374 }
marcozecchini 0:9fca2b23d0ba 375
marcozecchini 0:9fca2b23d0ba 376 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 377 mbedtls_printf( "\n" );
marcozecchini 0:9fca2b23d0ba 378
marcozecchini 0:9fca2b23d0ba 379 return( 0 );
marcozecchini 0:9fca2b23d0ba 380 }
marcozecchini 0:9fca2b23d0ba 381
marcozecchini 0:9fca2b23d0ba 382 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 383
marcozecchini 0:9fca2b23d0ba 384 #endif /* MBEDTLS_MD4_C */