[398] | 1 | /*
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| 2 | * RFC 1186/1320 compliant MD4 implementation
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| 3 | *
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| 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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| 5 | * SPDX-License-Identifier: Apache-2.0
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| 6 | *
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may
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| 8 | * not use this file except in compliance with the License.
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| 9 | * You may obtain a copy of the License at
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| 10 | *
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0
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| 12 | *
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| 13 | * Unless required by applicable law or agreed to in writing, software
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 16 | * See the License for the specific language governing permissions and
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| 17 | * limitations under the License.
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| 18 | *
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| 19 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 20 | */
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| 21 | /*
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| 22 | * The MD4 algorithm was designed by Ron Rivest in 1990.
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| 23 | *
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| 24 | * http://www.ietf.org/rfc/rfc1186.txt
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| 25 | * http://www.ietf.org/rfc/rfc1320.txt
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| 26 | */
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| 27 |
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| 28 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 29 | #include "mbedtls/config.h"
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| 30 | #else
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| 31 | #include MBEDTLS_CONFIG_FILE
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| 32 | #endif
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| 33 |
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| 34 | #if defined(MBEDTLS_MD4_C)
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| 35 |
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| 36 | #include "mbedtls/md4.h"
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| 37 | #include "mbedtls/platform_util.h"
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| 38 |
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| 39 | #include <string.h>
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| 40 |
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| 41 | #if defined(MBEDTLS_SELF_TEST)
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| 42 | #if defined(MBEDTLS_PLATFORM_C)
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| 43 | #include "mbedtls/platform.h"
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| 44 | #else
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| 45 | #include <stdio.h>
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| 46 | #define mbedtls_printf printf
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| 47 | #endif /* MBEDTLS_PLATFORM_C */
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| 48 | #endif /* MBEDTLS_SELF_TEST */
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| 49 |
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| 50 | #if !defined(MBEDTLS_MD4_ALT)
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| 51 |
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| 52 | /*
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| 53 | * 32-bit integer manipulation macros (little endian)
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| 54 | */
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| 55 | #ifndef GET_UINT32_LE
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| 56 | #define GET_UINT32_LE(n,b,i) \
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| 57 | { \
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| 58 | (n) = ( (uint32_t) (b)[(i) ] ) \
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| 59 | | ( (uint32_t) (b)[(i) + 1] << 8 ) \
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| 60 | | ( (uint32_t) (b)[(i) + 2] << 16 ) \
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| 61 | | ( (uint32_t) (b)[(i) + 3] << 24 ); \
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| 62 | }
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| 63 | #endif
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| 64 |
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| 65 | #ifndef PUT_UINT32_LE
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| 66 | #define PUT_UINT32_LE(n,b,i) \
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| 67 | { \
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| 68 | (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
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| 69 | (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
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| 70 | (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
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| 71 | (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
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| 72 | }
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| 73 | #endif
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| 74 |
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| 75 | void mbedtls_md4_init( mbedtls_md4_context *ctx )
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| 76 | {
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| 77 | memset( ctx, 0, sizeof( mbedtls_md4_context ) );
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| 78 | }
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| 79 |
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| 80 | void mbedtls_md4_free( mbedtls_md4_context *ctx )
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| 81 | {
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| 82 | if( ctx == NULL )
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| 83 | return;
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| 84 |
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| 85 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md4_context ) );
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| 86 | }
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| 87 |
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| 88 | void mbedtls_md4_clone( mbedtls_md4_context *dst,
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| 89 | const mbedtls_md4_context *src )
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| 90 | {
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| 91 | *dst = *src;
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| 92 | }
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| 93 |
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| 94 | /*
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| 95 | * MD4 context setup
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| 96 | */
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| 97 | int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx )
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| 98 | {
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| 99 | ctx->total[0] = 0;
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| 100 | ctx->total[1] = 0;
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| 101 |
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| 102 | ctx->state[0] = 0x67452301;
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| 103 | ctx->state[1] = 0xEFCDAB89;
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| 104 | ctx->state[2] = 0x98BADCFE;
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| 105 | ctx->state[3] = 0x10325476;
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| 106 |
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| 107 | return( 0 );
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| 108 | }
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| 109 |
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| 110 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 111 | void mbedtls_md4_starts( mbedtls_md4_context *ctx )
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| 112 | {
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| 113 | mbedtls_md4_starts_ret( ctx );
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| 114 | }
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| 115 | #endif
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| 116 |
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| 117 | #if !defined(MBEDTLS_MD4_PROCESS_ALT)
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| 118 | int mbedtls_internal_md4_process( mbedtls_md4_context *ctx,
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| 119 | const unsigned char data[64] )
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| 120 | {
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| 121 | uint32_t X[16], A, B, C, D;
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| 122 |
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| 123 | GET_UINT32_LE( X[ 0], data, 0 );
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| 124 | GET_UINT32_LE( X[ 1], data, 4 );
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| 125 | GET_UINT32_LE( X[ 2], data, 8 );
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| 126 | GET_UINT32_LE( X[ 3], data, 12 );
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| 127 | GET_UINT32_LE( X[ 4], data, 16 );
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| 128 | GET_UINT32_LE( X[ 5], data, 20 );
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| 129 | GET_UINT32_LE( X[ 6], data, 24 );
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| 130 | GET_UINT32_LE( X[ 7], data, 28 );
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| 131 | GET_UINT32_LE( X[ 8], data, 32 );
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| 132 | GET_UINT32_LE( X[ 9], data, 36 );
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| 133 | GET_UINT32_LE( X[10], data, 40 );
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| 134 | GET_UINT32_LE( X[11], data, 44 );
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| 135 | GET_UINT32_LE( X[12], data, 48 );
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| 136 | GET_UINT32_LE( X[13], data, 52 );
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| 137 | GET_UINT32_LE( X[14], data, 56 );
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| 138 | GET_UINT32_LE( X[15], data, 60 );
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| 139 |
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| 140 | #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
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| 141 |
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| 142 | A = ctx->state[0];
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| 143 | B = ctx->state[1];
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| 144 | C = ctx->state[2];
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| 145 | D = ctx->state[3];
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| 146 |
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| 147 | #define F(x, y, z) ((x & y) | ((~x) & z))
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| 148 | #define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); }
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| 149 |
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| 150 | P( A, B, C, D, X[ 0], 3 );
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| 151 | P( D, A, B, C, X[ 1], 7 );
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| 152 | P( C, D, A, B, X[ 2], 11 );
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| 153 | P( B, C, D, A, X[ 3], 19 );
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| 154 | P( A, B, C, D, X[ 4], 3 );
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| 155 | P( D, A, B, C, X[ 5], 7 );
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| 156 | P( C, D, A, B, X[ 6], 11 );
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| 157 | P( B, C, D, A, X[ 7], 19 );
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| 158 | P( A, B, C, D, X[ 8], 3 );
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| 159 | P( D, A, B, C, X[ 9], 7 );
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| 160 | P( C, D, A, B, X[10], 11 );
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| 161 | P( B, C, D, A, X[11], 19 );
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| 162 | P( A, B, C, D, X[12], 3 );
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| 163 | P( D, A, B, C, X[13], 7 );
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| 164 | P( C, D, A, B, X[14], 11 );
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| 165 | P( B, C, D, A, X[15], 19 );
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| 166 |
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| 167 | #undef P
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| 168 | #undef F
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| 169 |
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| 170 | #define F(x,y,z) ((x & y) | (x & z) | (y & z))
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| 171 | #define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); }
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| 172 |
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| 173 | P( A, B, C, D, X[ 0], 3 );
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| 174 | P( D, A, B, C, X[ 4], 5 );
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| 175 | P( C, D, A, B, X[ 8], 9 );
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| 176 | P( B, C, D, A, X[12], 13 );
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| 177 | P( A, B, C, D, X[ 1], 3 );
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| 178 | P( D, A, B, C, X[ 5], 5 );
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| 179 | P( C, D, A, B, X[ 9], 9 );
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| 180 | P( B, C, D, A, X[13], 13 );
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| 181 | P( A, B, C, D, X[ 2], 3 );
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| 182 | P( D, A, B, C, X[ 6], 5 );
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| 183 | P( C, D, A, B, X[10], 9 );
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| 184 | P( B, C, D, A, X[14], 13 );
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| 185 | P( A, B, C, D, X[ 3], 3 );
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| 186 | P( D, A, B, C, X[ 7], 5 );
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| 187 | P( C, D, A, B, X[11], 9 );
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| 188 | P( B, C, D, A, X[15], 13 );
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| 189 |
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| 190 | #undef P
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| 191 | #undef F
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| 192 |
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| 193 | #define F(x,y,z) (x ^ y ^ z)
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| 194 | #define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); }
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| 195 |
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| 196 | P( A, B, C, D, X[ 0], 3 );
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| 197 | P( D, A, B, C, X[ 8], 9 );
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| 198 | P( C, D, A, B, X[ 4], 11 );
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| 199 | P( B, C, D, A, X[12], 15 );
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| 200 | P( A, B, C, D, X[ 2], 3 );
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| 201 | P( D, A, B, C, X[10], 9 );
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| 202 | P( C, D, A, B, X[ 6], 11 );
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| 203 | P( B, C, D, A, X[14], 15 );
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| 204 | P( A, B, C, D, X[ 1], 3 );
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| 205 | P( D, A, B, C, X[ 9], 9 );
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| 206 | P( C, D, A, B, X[ 5], 11 );
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| 207 | P( B, C, D, A, X[13], 15 );
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| 208 | P( A, B, C, D, X[ 3], 3 );
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| 209 | P( D, A, B, C, X[11], 9 );
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| 210 | P( C, D, A, B, X[ 7], 11 );
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| 211 | P( B, C, D, A, X[15], 15 );
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| 212 |
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| 213 | #undef F
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| 214 | #undef P
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| 215 |
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| 216 | ctx->state[0] += A;
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| 217 | ctx->state[1] += B;
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| 218 | ctx->state[2] += C;
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| 219 | ctx->state[3] += D;
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| 220 |
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| 221 | return( 0 );
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| 222 | }
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| 223 |
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| 224 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 225 | void mbedtls_md4_process( mbedtls_md4_context *ctx,
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| 226 | const unsigned char data[64] )
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| 227 | {
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| 228 | mbedtls_internal_md4_process( ctx, data );
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| 229 | }
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| 230 | #endif
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| 231 | #endif /* !MBEDTLS_MD4_PROCESS_ALT */
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| 232 |
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| 233 | /*
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| 234 | * MD4 process buffer
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| 235 | */
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| 236 | int mbedtls_md4_update_ret( mbedtls_md4_context *ctx,
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| 237 | const unsigned char *input,
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| 238 | size_t ilen )
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| 239 | {
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| 240 | int ret;
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| 241 | size_t fill;
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| 242 | uint32_t left;
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| 243 |
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| 244 | if( ilen == 0 )
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| 245 | return( 0 );
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| 246 |
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| 247 | left = ctx->total[0] & 0x3F;
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| 248 | fill = 64 - left;
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| 249 |
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| 250 | ctx->total[0] += (uint32_t) ilen;
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| 251 | ctx->total[0] &= 0xFFFFFFFF;
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| 252 |
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| 253 | if( ctx->total[0] < (uint32_t) ilen )
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| 254 | ctx->total[1]++;
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| 255 |
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| 256 | if( left && ilen >= fill )
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| 257 | {
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| 258 | memcpy( (void *) (ctx->buffer + left),
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| 259 | (void *) input, fill );
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| 260 |
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| 261 | if( ( ret = mbedtls_internal_md4_process( ctx, ctx->buffer ) ) != 0 )
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| 262 | return( ret );
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| 263 |
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| 264 | input += fill;
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| 265 | ilen -= fill;
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| 266 | left = 0;
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| 267 | }
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| 268 |
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| 269 | while( ilen >= 64 )
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| 270 | {
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| 271 | if( ( ret = mbedtls_internal_md4_process( ctx, input ) ) != 0 )
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| 272 | return( ret );
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| 273 |
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| 274 | input += 64;
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| 275 | ilen -= 64;
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| 276 | }
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| 277 |
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| 278 | if( ilen > 0 )
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| 279 | {
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| 280 | memcpy( (void *) (ctx->buffer + left),
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| 281 | (void *) input, ilen );
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| 282 | }
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| 283 |
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| 284 | return( 0 );
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| 285 | }
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| 286 |
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| 287 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 288 | void mbedtls_md4_update( mbedtls_md4_context *ctx,
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| 289 | const unsigned char *input,
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| 290 | size_t ilen )
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| 291 | {
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| 292 | mbedtls_md4_update_ret( ctx, input, ilen );
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| 293 | }
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| 294 | #endif
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| 295 |
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| 296 | static const unsigned char md4_padding[64] =
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| 297 | {
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| 298 | 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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| 299 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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| 300 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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| 301 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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| 302 | };
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| 303 |
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| 304 | /*
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| 305 | * MD4 final digest
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| 306 | */
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| 307 | int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx,
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| 308 | unsigned char output[16] )
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| 309 | {
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| 310 | int ret;
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| 311 | uint32_t last, padn;
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| 312 | uint32_t high, low;
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| 313 | unsigned char msglen[8];
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| 314 |
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| 315 | high = ( ctx->total[0] >> 29 )
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| 316 | | ( ctx->total[1] << 3 );
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| 317 | low = ( ctx->total[0] << 3 );
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| 318 |
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| 319 | PUT_UINT32_LE( low, msglen, 0 );
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| 320 | PUT_UINT32_LE( high, msglen, 4 );
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| 321 |
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| 322 | last = ctx->total[0] & 0x3F;
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| 323 | padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
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| 324 |
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| 325 | ret = mbedtls_md4_update_ret( ctx, (unsigned char *)md4_padding, padn );
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| 326 | if( ret != 0 )
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| 327 | return( ret );
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| 328 |
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| 329 | if( ( ret = mbedtls_md4_update_ret( ctx, msglen, 8 ) ) != 0 )
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| 330 | return( ret );
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| 331 |
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| 332 |
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| 333 | PUT_UINT32_LE( ctx->state[0], output, 0 );
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| 334 | PUT_UINT32_LE( ctx->state[1], output, 4 );
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| 335 | PUT_UINT32_LE( ctx->state[2], output, 8 );
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| 336 | PUT_UINT32_LE( ctx->state[3], output, 12 );
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| 337 |
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| 338 | return( 0 );
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| 339 | }
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| 340 |
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| 341 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 342 | void mbedtls_md4_finish( mbedtls_md4_context *ctx,
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| 343 | unsigned char output[16] )
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| 344 | {
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| 345 | mbedtls_md4_finish_ret( ctx, output );
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| 346 | }
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| 347 | #endif
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| 348 |
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| 349 | #endif /* !MBEDTLS_MD4_ALT */
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| 350 |
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| 351 | /*
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| 352 | * output = MD4( input buffer )
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| 353 | */
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| 354 | int mbedtls_md4_ret( const unsigned char *input,
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| 355 | size_t ilen,
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| 356 | unsigned char output[16] )
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| 357 | {
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| 358 | int ret;
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| 359 | mbedtls_md4_context ctx;
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| 360 |
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| 361 | mbedtls_md4_init( &ctx );
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| 362 |
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| 363 | if( ( ret = mbedtls_md4_starts_ret( &ctx ) ) != 0 )
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| 364 | goto exit;
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| 365 |
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| 366 | if( ( ret = mbedtls_md4_update_ret( &ctx, input, ilen ) ) != 0 )
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| 367 | goto exit;
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| 368 |
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| 369 | if( ( ret = mbedtls_md4_finish_ret( &ctx, output ) ) != 0 )
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| 370 | goto exit;
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| 371 |
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| 372 | exit:
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| 373 | mbedtls_md4_free( &ctx );
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| 374 |
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| 375 | return( ret );
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| 376 | }
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| 377 |
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| 378 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 379 | void mbedtls_md4( const unsigned char *input,
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| 380 | size_t ilen,
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| 381 | unsigned char output[16] )
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| 382 | {
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| 383 | mbedtls_md4_ret( input, ilen, output );
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| 384 | }
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| 385 | #endif
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| 386 |
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| 387 | #if defined(MBEDTLS_SELF_TEST)
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| 388 |
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| 389 | /*
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| 390 | * RFC 1320 test vectors
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| 391 | */
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| 392 | static const unsigned char md4_test_str[7][81] =
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| 393 | {
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| 394 | { "" },
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| 395 | { "a" },
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| 396 | { "abc" },
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| 397 | { "message digest" },
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| 398 | { "abcdefghijklmnopqrstuvwxyz" },
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| 399 | { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
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| 400 | { "12345678901234567890123456789012345678901234567890123456789012"
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| 401 | "345678901234567890" }
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| 402 | };
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| 403 |
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| 404 | static const size_t md4_test_strlen[7] =
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| 405 | {
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| 406 | 0, 1, 3, 14, 26, 62, 80
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| 407 | };
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| 408 |
|
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| 409 | static const unsigned char md4_test_sum[7][16] =
|
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| 410 | {
|
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| 411 | { 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
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| 412 | 0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
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| 413 | { 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
|
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| 414 | 0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
|
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| 415 | { 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
|
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| 416 | 0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
|
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| 417 | { 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
|
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| 418 | 0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
|
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| 419 | { 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
|
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| 420 | 0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
|
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| 421 | { 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
|
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| 422 | 0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
|
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| 423 | { 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
|
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| 424 | 0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
|
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| 425 | };
|
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| 426 |
|
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| 427 | /*
|
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| 428 | * Checkup routine
|
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| 429 | */
|
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| 430 | int mbedtls_md4_self_test( int verbose )
|
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| 431 | {
|
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| 432 | int i, ret = 0;
|
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| 433 | unsigned char md4sum[16];
|
---|
| 434 |
|
---|
| 435 | for( i = 0; i < 7; i++ )
|
---|
| 436 | {
|
---|
| 437 | if( verbose != 0 )
|
---|
| 438 | mbedtls_printf( " MD4 test #%d: ", i + 1 );
|
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| 439 |
|
---|
| 440 | ret = mbedtls_md4_ret( md4_test_str[i], md4_test_strlen[i], md4sum );
|
---|
| 441 | if( ret != 0 )
|
---|
| 442 | goto fail;
|
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| 443 |
|
---|
| 444 | if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 )
|
---|
| 445 | {
|
---|
| 446 | ret = 1;
|
---|
| 447 | goto fail;
|
---|
| 448 | }
|
---|
| 449 |
|
---|
| 450 | if( verbose != 0 )
|
---|
| 451 | mbedtls_printf( "passed\n" );
|
---|
| 452 | }
|
---|
| 453 |
|
---|
| 454 | if( verbose != 0 )
|
---|
| 455 | mbedtls_printf( "\n" );
|
---|
| 456 |
|
---|
| 457 | return( 0 );
|
---|
| 458 |
|
---|
| 459 | fail:
|
---|
| 460 | if( verbose != 0 )
|
---|
| 461 | mbedtls_printf( "failed\n" );
|
---|
| 462 |
|
---|
| 463 | return( ret );
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 | #endif /* MBEDTLS_SELF_TEST */
|
---|
| 467 |
|
---|
| 468 | #endif /* MBEDTLS_MD4_C */
|
---|