Simon Cooksey / mbed-os

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features/mbedtls/src/des.c@0:fb7af294d5d9, 2016-11-17 (annotated)

Committer:
Simon Cooksey
Date:
Thu Nov 17 16:43:53 2016 +0000
Revision:
0:fb7af294d5d9
Initial commit

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Simon Cooksey 0:fb7af294d5d9 1 /*
Simon Cooksey 0:fb7af294d5d9 2 * FIPS-46-3 compliant Triple-DES implementation
Simon Cooksey 0:fb7af294d5d9 3 *
Simon Cooksey 0:fb7af294d5d9 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
Simon Cooksey 0:fb7af294d5d9 5 * SPDX-License-Identifier: Apache-2.0
Simon Cooksey 0:fb7af294d5d9 6 *
Simon Cooksey 0:fb7af294d5d9 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Simon Cooksey 0:fb7af294d5d9 8 * not use this file except in compliance with the License.
Simon Cooksey 0:fb7af294d5d9 9 * You may obtain a copy of the License at
Simon Cooksey 0:fb7af294d5d9 10 *
Simon Cooksey 0:fb7af294d5d9 11 * http://www.apache.org/licenses/LICENSE-2.0
Simon Cooksey 0:fb7af294d5d9 12 *
Simon Cooksey 0:fb7af294d5d9 13 * Unless required by applicable law or agreed to in writing, software
Simon Cooksey 0:fb7af294d5d9 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Simon Cooksey 0:fb7af294d5d9 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Simon Cooksey 0:fb7af294d5d9 16 * See the License for the specific language governing permissions and
Simon Cooksey 0:fb7af294d5d9 17 * limitations under the License.
Simon Cooksey 0:fb7af294d5d9 18 *
Simon Cooksey 0:fb7af294d5d9 19 * This file is part of mbed TLS (https://tls.mbed.org)
Simon Cooksey 0:fb7af294d5d9 20 */
Simon Cooksey 0:fb7af294d5d9 21 /*
Simon Cooksey 0:fb7af294d5d9 22 * DES, on which TDES is based, was originally designed by Horst Feistel
Simon Cooksey 0:fb7af294d5d9 23 * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
Simon Cooksey 0:fb7af294d5d9 24 *
Simon Cooksey 0:fb7af294d5d9 25 * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
Simon Cooksey 0:fb7af294d5d9 26 */
Simon Cooksey 0:fb7af294d5d9 27
Simon Cooksey 0:fb7af294d5d9 28 #if !defined(MBEDTLS_CONFIG_FILE)
Simon Cooksey 0:fb7af294d5d9 29 #include "mbedtls/config.h"
Simon Cooksey 0:fb7af294d5d9 30 #else
Simon Cooksey 0:fb7af294d5d9 31 #include MBEDTLS_CONFIG_FILE
Simon Cooksey 0:fb7af294d5d9 32 #endif
Simon Cooksey 0:fb7af294d5d9 33
Simon Cooksey 0:fb7af294d5d9 34 #if defined(MBEDTLS_DES_C)
Simon Cooksey 0:fb7af294d5d9 35
Simon Cooksey 0:fb7af294d5d9 36 #include "mbedtls/des.h"
Simon Cooksey 0:fb7af294d5d9 37
Simon Cooksey 0:fb7af294d5d9 38 #include <string.h>
Simon Cooksey 0:fb7af294d5d9 39
Simon Cooksey 0:fb7af294d5d9 40 #if defined(MBEDTLS_SELF_TEST)
Simon Cooksey 0:fb7af294d5d9 41 #if defined(MBEDTLS_PLATFORM_C)
Simon Cooksey 0:fb7af294d5d9 42 #include "mbedtls/platform.h"
Simon Cooksey 0:fb7af294d5d9 43 #else
Simon Cooksey 0:fb7af294d5d9 44 #include <stdio.h>
Simon Cooksey 0:fb7af294d5d9 45 #define mbedtls_printf printf
Simon Cooksey 0:fb7af294d5d9 46 #endif /* MBEDTLS_PLATFORM_C */
Simon Cooksey 0:fb7af294d5d9 47 #endif /* MBEDTLS_SELF_TEST */
Simon Cooksey 0:fb7af294d5d9 48
Simon Cooksey 0:fb7af294d5d9 49 #if !defined(MBEDTLS_DES_ALT)
Simon Cooksey 0:fb7af294d5d9 50
Simon Cooksey 0:fb7af294d5d9 51 /* Implementation that should never be optimized out by the compiler */
Simon Cooksey 0:fb7af294d5d9 52 static void mbedtls_zeroize( void *v, size_t n ) {
Simon Cooksey 0:fb7af294d5d9 53 volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
Simon Cooksey 0:fb7af294d5d9 54 }
Simon Cooksey 0:fb7af294d5d9 55
Simon Cooksey 0:fb7af294d5d9 56 /*
Simon Cooksey 0:fb7af294d5d9 57 * 32-bit integer manipulation macros (big endian)
Simon Cooksey 0:fb7af294d5d9 58 */
Simon Cooksey 0:fb7af294d5d9 59 #ifndef GET_UINT32_BE
Simon Cooksey 0:fb7af294d5d9 60 #define GET_UINT32_BE(n,b,i) \
Simon Cooksey 0:fb7af294d5d9 61 { \
Simon Cooksey 0:fb7af294d5d9 62 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
Simon Cooksey 0:fb7af294d5d9 63 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
Simon Cooksey 0:fb7af294d5d9 64 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
Simon Cooksey 0:fb7af294d5d9 65 | ( (uint32_t) (b)[(i) + 3] ); \
Simon Cooksey 0:fb7af294d5d9 66 }
Simon Cooksey 0:fb7af294d5d9 67 #endif
Simon Cooksey 0:fb7af294d5d9 68
Simon Cooksey 0:fb7af294d5d9 69 #ifndef PUT_UINT32_BE
Simon Cooksey 0:fb7af294d5d9 70 #define PUT_UINT32_BE(n,b,i) \
Simon Cooksey 0:fb7af294d5d9 71 { \
Simon Cooksey 0:fb7af294d5d9 72 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
Simon Cooksey 0:fb7af294d5d9 73 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
Simon Cooksey 0:fb7af294d5d9 74 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
Simon Cooksey 0:fb7af294d5d9 75 (b)[(i) + 3] = (unsigned char) ( (n) ); \
Simon Cooksey 0:fb7af294d5d9 76 }
Simon Cooksey 0:fb7af294d5d9 77 #endif
Simon Cooksey 0:fb7af294d5d9 78
Simon Cooksey 0:fb7af294d5d9 79 /*
Simon Cooksey 0:fb7af294d5d9 80 * Expanded DES S-boxes
Simon Cooksey 0:fb7af294d5d9 81 */
Simon Cooksey 0:fb7af294d5d9 82 static const uint32_t SB1[64] =
Simon Cooksey 0:fb7af294d5d9 83 {
Simon Cooksey 0:fb7af294d5d9 84 0x01010400, 0x00000000, 0x00010000, 0x01010404,
Simon Cooksey 0:fb7af294d5d9 85 0x01010004, 0x00010404, 0x00000004, 0x00010000,
Simon Cooksey 0:fb7af294d5d9 86 0x00000400, 0x01010400, 0x01010404, 0x00000400,
Simon Cooksey 0:fb7af294d5d9 87 0x01000404, 0x01010004, 0x01000000, 0x00000004,
Simon Cooksey 0:fb7af294d5d9 88 0x00000404, 0x01000400, 0x01000400, 0x00010400,
Simon Cooksey 0:fb7af294d5d9 89 0x00010400, 0x01010000, 0x01010000, 0x01000404,
Simon Cooksey 0:fb7af294d5d9 90 0x00010004, 0x01000004, 0x01000004, 0x00010004,
Simon Cooksey 0:fb7af294d5d9 91 0x00000000, 0x00000404, 0x00010404, 0x01000000,
Simon Cooksey 0:fb7af294d5d9 92 0x00010000, 0x01010404, 0x00000004, 0x01010000,
Simon Cooksey 0:fb7af294d5d9 93 0x01010400, 0x01000000, 0x01000000, 0x00000400,
Simon Cooksey 0:fb7af294d5d9 94 0x01010004, 0x00010000, 0x00010400, 0x01000004,
Simon Cooksey 0:fb7af294d5d9 95 0x00000400, 0x00000004, 0x01000404, 0x00010404,
Simon Cooksey 0:fb7af294d5d9 96 0x01010404, 0x00010004, 0x01010000, 0x01000404,
Simon Cooksey 0:fb7af294d5d9 97 0x01000004, 0x00000404, 0x00010404, 0x01010400,
Simon Cooksey 0:fb7af294d5d9 98 0x00000404, 0x01000400, 0x01000400, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 99 0x00010004, 0x00010400, 0x00000000, 0x01010004
Simon Cooksey 0:fb7af294d5d9 100 };
Simon Cooksey 0:fb7af294d5d9 101
Simon Cooksey 0:fb7af294d5d9 102 static const uint32_t SB2[64] =
Simon Cooksey 0:fb7af294d5d9 103 {
Simon Cooksey 0:fb7af294d5d9 104 0x80108020, 0x80008000, 0x00008000, 0x00108020,
Simon Cooksey 0:fb7af294d5d9 105 0x00100000, 0x00000020, 0x80100020, 0x80008020,
Simon Cooksey 0:fb7af294d5d9 106 0x80000020, 0x80108020, 0x80108000, 0x80000000,
Simon Cooksey 0:fb7af294d5d9 107 0x80008000, 0x00100000, 0x00000020, 0x80100020,
Simon Cooksey 0:fb7af294d5d9 108 0x00108000, 0x00100020, 0x80008020, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 109 0x80000000, 0x00008000, 0x00108020, 0x80100000,
Simon Cooksey 0:fb7af294d5d9 110 0x00100020, 0x80000020, 0x00000000, 0x00108000,
Simon Cooksey 0:fb7af294d5d9 111 0x00008020, 0x80108000, 0x80100000, 0x00008020,
Simon Cooksey 0:fb7af294d5d9 112 0x00000000, 0x00108020, 0x80100020, 0x00100000,
Simon Cooksey 0:fb7af294d5d9 113 0x80008020, 0x80100000, 0x80108000, 0x00008000,
Simon Cooksey 0:fb7af294d5d9 114 0x80100000, 0x80008000, 0x00000020, 0x80108020,
Simon Cooksey 0:fb7af294d5d9 115 0x00108020, 0x00000020, 0x00008000, 0x80000000,
Simon Cooksey 0:fb7af294d5d9 116 0x00008020, 0x80108000, 0x00100000, 0x80000020,
Simon Cooksey 0:fb7af294d5d9 117 0x00100020, 0x80008020, 0x80000020, 0x00100020,
Simon Cooksey 0:fb7af294d5d9 118 0x00108000, 0x00000000, 0x80008000, 0x00008020,
Simon Cooksey 0:fb7af294d5d9 119 0x80000000, 0x80100020, 0x80108020, 0x00108000
Simon Cooksey 0:fb7af294d5d9 120 };
Simon Cooksey 0:fb7af294d5d9 121
Simon Cooksey 0:fb7af294d5d9 122 static const uint32_t SB3[64] =
Simon Cooksey 0:fb7af294d5d9 123 {
Simon Cooksey 0:fb7af294d5d9 124 0x00000208, 0x08020200, 0x00000000, 0x08020008,
Simon Cooksey 0:fb7af294d5d9 125 0x08000200, 0x00000000, 0x00020208, 0x08000200,
Simon Cooksey 0:fb7af294d5d9 126 0x00020008, 0x08000008, 0x08000008, 0x00020000,
Simon Cooksey 0:fb7af294d5d9 127 0x08020208, 0x00020008, 0x08020000, 0x00000208,
Simon Cooksey 0:fb7af294d5d9 128 0x08000000, 0x00000008, 0x08020200, 0x00000200,
Simon Cooksey 0:fb7af294d5d9 129 0x00020200, 0x08020000, 0x08020008, 0x00020208,
Simon Cooksey 0:fb7af294d5d9 130 0x08000208, 0x00020200, 0x00020000, 0x08000208,
Simon Cooksey 0:fb7af294d5d9 131 0x00000008, 0x08020208, 0x00000200, 0x08000000,
Simon Cooksey 0:fb7af294d5d9 132 0x08020200, 0x08000000, 0x00020008, 0x00000208,
Simon Cooksey 0:fb7af294d5d9 133 0x00020000, 0x08020200, 0x08000200, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 134 0x00000200, 0x00020008, 0x08020208, 0x08000200,
Simon Cooksey 0:fb7af294d5d9 135 0x08000008, 0x00000200, 0x00000000, 0x08020008,
Simon Cooksey 0:fb7af294d5d9 136 0x08000208, 0x00020000, 0x08000000, 0x08020208,
Simon Cooksey 0:fb7af294d5d9 137 0x00000008, 0x00020208, 0x00020200, 0x08000008,
Simon Cooksey 0:fb7af294d5d9 138 0x08020000, 0x08000208, 0x00000208, 0x08020000,
Simon Cooksey 0:fb7af294d5d9 139 0x00020208, 0x00000008, 0x08020008, 0x00020200
Simon Cooksey 0:fb7af294d5d9 140 };
Simon Cooksey 0:fb7af294d5d9 141
Simon Cooksey 0:fb7af294d5d9 142 static const uint32_t SB4[64] =
Simon Cooksey 0:fb7af294d5d9 143 {
Simon Cooksey 0:fb7af294d5d9 144 0x00802001, 0x00002081, 0x00002081, 0x00000080,
Simon Cooksey 0:fb7af294d5d9 145 0x00802080, 0x00800081, 0x00800001, 0x00002001,
Simon Cooksey 0:fb7af294d5d9 146 0x00000000, 0x00802000, 0x00802000, 0x00802081,
Simon Cooksey 0:fb7af294d5d9 147 0x00000081, 0x00000000, 0x00800080, 0x00800001,
Simon Cooksey 0:fb7af294d5d9 148 0x00000001, 0x00002000, 0x00800000, 0x00802001,
Simon Cooksey 0:fb7af294d5d9 149 0x00000080, 0x00800000, 0x00002001, 0x00002080,
Simon Cooksey 0:fb7af294d5d9 150 0x00800081, 0x00000001, 0x00002080, 0x00800080,
Simon Cooksey 0:fb7af294d5d9 151 0x00002000, 0x00802080, 0x00802081, 0x00000081,
Simon Cooksey 0:fb7af294d5d9 152 0x00800080, 0x00800001, 0x00802000, 0x00802081,
Simon Cooksey 0:fb7af294d5d9 153 0x00000081, 0x00000000, 0x00000000, 0x00802000,
Simon Cooksey 0:fb7af294d5d9 154 0x00002080, 0x00800080, 0x00800081, 0x00000001,
Simon Cooksey 0:fb7af294d5d9 155 0x00802001, 0x00002081, 0x00002081, 0x00000080,
Simon Cooksey 0:fb7af294d5d9 156 0x00802081, 0x00000081, 0x00000001, 0x00002000,
Simon Cooksey 0:fb7af294d5d9 157 0x00800001, 0x00002001, 0x00802080, 0x00800081,
Simon Cooksey 0:fb7af294d5d9 158 0x00002001, 0x00002080, 0x00800000, 0x00802001,
Simon Cooksey 0:fb7af294d5d9 159 0x00000080, 0x00800000, 0x00002000, 0x00802080
Simon Cooksey 0:fb7af294d5d9 160 };
Simon Cooksey 0:fb7af294d5d9 161
Simon Cooksey 0:fb7af294d5d9 162 static const uint32_t SB5[64] =
Simon Cooksey 0:fb7af294d5d9 163 {
Simon Cooksey 0:fb7af294d5d9 164 0x00000100, 0x02080100, 0x02080000, 0x42000100,
Simon Cooksey 0:fb7af294d5d9 165 0x00080000, 0x00000100, 0x40000000, 0x02080000,
Simon Cooksey 0:fb7af294d5d9 166 0x40080100, 0x00080000, 0x02000100, 0x40080100,
Simon Cooksey 0:fb7af294d5d9 167 0x42000100, 0x42080000, 0x00080100, 0x40000000,
Simon Cooksey 0:fb7af294d5d9 168 0x02000000, 0x40080000, 0x40080000, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 169 0x40000100, 0x42080100, 0x42080100, 0x02000100,
Simon Cooksey 0:fb7af294d5d9 170 0x42080000, 0x40000100, 0x00000000, 0x42000000,
Simon Cooksey 0:fb7af294d5d9 171 0x02080100, 0x02000000, 0x42000000, 0x00080100,
Simon Cooksey 0:fb7af294d5d9 172 0x00080000, 0x42000100, 0x00000100, 0x02000000,
Simon Cooksey 0:fb7af294d5d9 173 0x40000000, 0x02080000, 0x42000100, 0x40080100,
Simon Cooksey 0:fb7af294d5d9 174 0x02000100, 0x40000000, 0x42080000, 0x02080100,
Simon Cooksey 0:fb7af294d5d9 175 0x40080100, 0x00000100, 0x02000000, 0x42080000,
Simon Cooksey 0:fb7af294d5d9 176 0x42080100, 0x00080100, 0x42000000, 0x42080100,
Simon Cooksey 0:fb7af294d5d9 177 0x02080000, 0x00000000, 0x40080000, 0x42000000,
Simon Cooksey 0:fb7af294d5d9 178 0x00080100, 0x02000100, 0x40000100, 0x00080000,
Simon Cooksey 0:fb7af294d5d9 179 0x00000000, 0x40080000, 0x02080100, 0x40000100
Simon Cooksey 0:fb7af294d5d9 180 };
Simon Cooksey 0:fb7af294d5d9 181
Simon Cooksey 0:fb7af294d5d9 182 static const uint32_t SB6[64] =
Simon Cooksey 0:fb7af294d5d9 183 {
Simon Cooksey 0:fb7af294d5d9 184 0x20000010, 0x20400000, 0x00004000, 0x20404010,
Simon Cooksey 0:fb7af294d5d9 185 0x20400000, 0x00000010, 0x20404010, 0x00400000,
Simon Cooksey 0:fb7af294d5d9 186 0x20004000, 0x00404010, 0x00400000, 0x20000010,
Simon Cooksey 0:fb7af294d5d9 187 0x00400010, 0x20004000, 0x20000000, 0x00004010,
Simon Cooksey 0:fb7af294d5d9 188 0x00000000, 0x00400010, 0x20004010, 0x00004000,
Simon Cooksey 0:fb7af294d5d9 189 0x00404000, 0x20004010, 0x00000010, 0x20400010,
Simon Cooksey 0:fb7af294d5d9 190 0x20400010, 0x00000000, 0x00404010, 0x20404000,
Simon Cooksey 0:fb7af294d5d9 191 0x00004010, 0x00404000, 0x20404000, 0x20000000,
Simon Cooksey 0:fb7af294d5d9 192 0x20004000, 0x00000010, 0x20400010, 0x00404000,
Simon Cooksey 0:fb7af294d5d9 193 0x20404010, 0x00400000, 0x00004010, 0x20000010,
Simon Cooksey 0:fb7af294d5d9 194 0x00400000, 0x20004000, 0x20000000, 0x00004010,
Simon Cooksey 0:fb7af294d5d9 195 0x20000010, 0x20404010, 0x00404000, 0x20400000,
Simon Cooksey 0:fb7af294d5d9 196 0x00404010, 0x20404000, 0x00000000, 0x20400010,
Simon Cooksey 0:fb7af294d5d9 197 0x00000010, 0x00004000, 0x20400000, 0x00404010,
Simon Cooksey 0:fb7af294d5d9 198 0x00004000, 0x00400010, 0x20004010, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 199 0x20404000, 0x20000000, 0x00400010, 0x20004010
Simon Cooksey 0:fb7af294d5d9 200 };
Simon Cooksey 0:fb7af294d5d9 201
Simon Cooksey 0:fb7af294d5d9 202 static const uint32_t SB7[64] =
Simon Cooksey 0:fb7af294d5d9 203 {
Simon Cooksey 0:fb7af294d5d9 204 0x00200000, 0x04200002, 0x04000802, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 205 0x00000800, 0x04000802, 0x00200802, 0x04200800,
Simon Cooksey 0:fb7af294d5d9 206 0x04200802, 0x00200000, 0x00000000, 0x04000002,
Simon Cooksey 0:fb7af294d5d9 207 0x00000002, 0x04000000, 0x04200002, 0x00000802,
Simon Cooksey 0:fb7af294d5d9 208 0x04000800, 0x00200802, 0x00200002, 0x04000800,
Simon Cooksey 0:fb7af294d5d9 209 0x04000002, 0x04200000, 0x04200800, 0x00200002,
Simon Cooksey 0:fb7af294d5d9 210 0x04200000, 0x00000800, 0x00000802, 0x04200802,
Simon Cooksey 0:fb7af294d5d9 211 0x00200800, 0x00000002, 0x04000000, 0x00200800,
Simon Cooksey 0:fb7af294d5d9 212 0x04000000, 0x00200800, 0x00200000, 0x04000802,
Simon Cooksey 0:fb7af294d5d9 213 0x04000802, 0x04200002, 0x04200002, 0x00000002,
Simon Cooksey 0:fb7af294d5d9 214 0x00200002, 0x04000000, 0x04000800, 0x00200000,
Simon Cooksey 0:fb7af294d5d9 215 0x04200800, 0x00000802, 0x00200802, 0x04200800,
Simon Cooksey 0:fb7af294d5d9 216 0x00000802, 0x04000002, 0x04200802, 0x04200000,
Simon Cooksey 0:fb7af294d5d9 217 0x00200800, 0x00000000, 0x00000002, 0x04200802,
Simon Cooksey 0:fb7af294d5d9 218 0x00000000, 0x00200802, 0x04200000, 0x00000800,
Simon Cooksey 0:fb7af294d5d9 219 0x04000002, 0x04000800, 0x00000800, 0x00200002
Simon Cooksey 0:fb7af294d5d9 220 };
Simon Cooksey 0:fb7af294d5d9 221
Simon Cooksey 0:fb7af294d5d9 222 static const uint32_t SB8[64] =
Simon Cooksey 0:fb7af294d5d9 223 {
Simon Cooksey 0:fb7af294d5d9 224 0x10001040, 0x00001000, 0x00040000, 0x10041040,
Simon Cooksey 0:fb7af294d5d9 225 0x10000000, 0x10001040, 0x00000040, 0x10000000,
Simon Cooksey 0:fb7af294d5d9 226 0x00040040, 0x10040000, 0x10041040, 0x00041000,
Simon Cooksey 0:fb7af294d5d9 227 0x10041000, 0x00041040, 0x00001000, 0x00000040,
Simon Cooksey 0:fb7af294d5d9 228 0x10040000, 0x10000040, 0x10001000, 0x00001040,
Simon Cooksey 0:fb7af294d5d9 229 0x00041000, 0x00040040, 0x10040040, 0x10041000,
Simon Cooksey 0:fb7af294d5d9 230 0x00001040, 0x00000000, 0x00000000, 0x10040040,
Simon Cooksey 0:fb7af294d5d9 231 0x10000040, 0x10001000, 0x00041040, 0x00040000,
Simon Cooksey 0:fb7af294d5d9 232 0x00041040, 0x00040000, 0x10041000, 0x00001000,
Simon Cooksey 0:fb7af294d5d9 233 0x00000040, 0x10040040, 0x00001000, 0x00041040,
Simon Cooksey 0:fb7af294d5d9 234 0x10001000, 0x00000040, 0x10000040, 0x10040000,
Simon Cooksey 0:fb7af294d5d9 235 0x10040040, 0x10000000, 0x00040000, 0x10001040,
Simon Cooksey 0:fb7af294d5d9 236 0x00000000, 0x10041040, 0x00040040, 0x10000040,
Simon Cooksey 0:fb7af294d5d9 237 0x10040000, 0x10001000, 0x10001040, 0x00000000,
Simon Cooksey 0:fb7af294d5d9 238 0x10041040, 0x00041000, 0x00041000, 0x00001040,
Simon Cooksey 0:fb7af294d5d9 239 0x00001040, 0x00040040, 0x10000000, 0x10041000
Simon Cooksey 0:fb7af294d5d9 240 };
Simon Cooksey 0:fb7af294d5d9 241
Simon Cooksey 0:fb7af294d5d9 242 /*
Simon Cooksey 0:fb7af294d5d9 243 * PC1: left and right halves bit-swap
Simon Cooksey 0:fb7af294d5d9 244 */
Simon Cooksey 0:fb7af294d5d9 245 static const uint32_t LHs[16] =
Simon Cooksey 0:fb7af294d5d9 246 {
Simon Cooksey 0:fb7af294d5d9 247 0x00000000, 0x00000001, 0x00000100, 0x00000101,
Simon Cooksey 0:fb7af294d5d9 248 0x00010000, 0x00010001, 0x00010100, 0x00010101,
Simon Cooksey 0:fb7af294d5d9 249 0x01000000, 0x01000001, 0x01000100, 0x01000101,
Simon Cooksey 0:fb7af294d5d9 250 0x01010000, 0x01010001, 0x01010100, 0x01010101
Simon Cooksey 0:fb7af294d5d9 251 };
Simon Cooksey 0:fb7af294d5d9 252
Simon Cooksey 0:fb7af294d5d9 253 static const uint32_t RHs[16] =
Simon Cooksey 0:fb7af294d5d9 254 {
Simon Cooksey 0:fb7af294d5d9 255 0x00000000, 0x01000000, 0x00010000, 0x01010000,
Simon Cooksey 0:fb7af294d5d9 256 0x00000100, 0x01000100, 0x00010100, 0x01010100,
Simon Cooksey 0:fb7af294d5d9 257 0x00000001, 0x01000001, 0x00010001, 0x01010001,
Simon Cooksey 0:fb7af294d5d9 258 0x00000101, 0x01000101, 0x00010101, 0x01010101,
Simon Cooksey 0:fb7af294d5d9 259 };
Simon Cooksey 0:fb7af294d5d9 260
Simon Cooksey 0:fb7af294d5d9 261 /*
Simon Cooksey 0:fb7af294d5d9 262 * Initial Permutation macro
Simon Cooksey 0:fb7af294d5d9 263 */
Simon Cooksey 0:fb7af294d5d9 264 #define DES_IP(X,Y) \
Simon Cooksey 0:fb7af294d5d9 265 { \
Simon Cooksey 0:fb7af294d5d9 266 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
Simon Cooksey 0:fb7af294d5d9 267 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
Simon Cooksey 0:fb7af294d5d9 268 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
Simon Cooksey 0:fb7af294d5d9 269 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
Simon Cooksey 0:fb7af294d5d9 270 Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
Simon Cooksey 0:fb7af294d5d9 271 T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
Simon Cooksey 0:fb7af294d5d9 272 X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
Simon Cooksey 0:fb7af294d5d9 273 }
Simon Cooksey 0:fb7af294d5d9 274
Simon Cooksey 0:fb7af294d5d9 275 /*
Simon Cooksey 0:fb7af294d5d9 276 * Final Permutation macro
Simon Cooksey 0:fb7af294d5d9 277 */
Simon Cooksey 0:fb7af294d5d9 278 #define DES_FP(X,Y) \
Simon Cooksey 0:fb7af294d5d9 279 { \
Simon Cooksey 0:fb7af294d5d9 280 X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
Simon Cooksey 0:fb7af294d5d9 281 T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
Simon Cooksey 0:fb7af294d5d9 282 Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
Simon Cooksey 0:fb7af294d5d9 283 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
Simon Cooksey 0:fb7af294d5d9 284 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
Simon Cooksey 0:fb7af294d5d9 285 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
Simon Cooksey 0:fb7af294d5d9 286 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
Simon Cooksey 0:fb7af294d5d9 287 }
Simon Cooksey 0:fb7af294d5d9 288
Simon Cooksey 0:fb7af294d5d9 289 /*
Simon Cooksey 0:fb7af294d5d9 290 * DES round macro
Simon Cooksey 0:fb7af294d5d9 291 */
Simon Cooksey 0:fb7af294d5d9 292 #define DES_ROUND(X,Y) \
Simon Cooksey 0:fb7af294d5d9 293 { \
Simon Cooksey 0:fb7af294d5d9 294 T = *SK++ ^ X; \
Simon Cooksey 0:fb7af294d5d9 295 Y ^= SB8[ (T ) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 296 SB6[ (T >> 8) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 297 SB4[ (T >> 16) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 298 SB2[ (T >> 24) & 0x3F ]; \
Simon Cooksey 0:fb7af294d5d9 299 \
Simon Cooksey 0:fb7af294d5d9 300 T = *SK++ ^ ((X << 28) | (X >> 4)); \
Simon Cooksey 0:fb7af294d5d9 301 Y ^= SB7[ (T ) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 302 SB5[ (T >> 8) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 303 SB3[ (T >> 16) & 0x3F ] ^ \
Simon Cooksey 0:fb7af294d5d9 304 SB1[ (T >> 24) & 0x3F ]; \
Simon Cooksey 0:fb7af294d5d9 305 }
Simon Cooksey 0:fb7af294d5d9 306
Simon Cooksey 0:fb7af294d5d9 307 #define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
Simon Cooksey 0:fb7af294d5d9 308
Simon Cooksey 0:fb7af294d5d9 309 void mbedtls_des_init( mbedtls_des_context *ctx )
Simon Cooksey 0:fb7af294d5d9 310 {
Simon Cooksey 0:fb7af294d5d9 311 memset( ctx, 0, sizeof( mbedtls_des_context ) );
Simon Cooksey 0:fb7af294d5d9 312 }
Simon Cooksey 0:fb7af294d5d9 313
Simon Cooksey 0:fb7af294d5d9 314 void mbedtls_des_free( mbedtls_des_context *ctx )
Simon Cooksey 0:fb7af294d5d9 315 {
Simon Cooksey 0:fb7af294d5d9 316 if( ctx == NULL )
Simon Cooksey 0:fb7af294d5d9 317 return;
Simon Cooksey 0:fb7af294d5d9 318
Simon Cooksey 0:fb7af294d5d9 319 mbedtls_zeroize( ctx, sizeof( mbedtls_des_context ) );
Simon Cooksey 0:fb7af294d5d9 320 }
Simon Cooksey 0:fb7af294d5d9 321
Simon Cooksey 0:fb7af294d5d9 322 void mbedtls_des3_init( mbedtls_des3_context *ctx )
Simon Cooksey 0:fb7af294d5d9 323 {
Simon Cooksey 0:fb7af294d5d9 324 memset( ctx, 0, sizeof( mbedtls_des3_context ) );
Simon Cooksey 0:fb7af294d5d9 325 }
Simon Cooksey 0:fb7af294d5d9 326
Simon Cooksey 0:fb7af294d5d9 327 void mbedtls_des3_free( mbedtls_des3_context *ctx )
Simon Cooksey 0:fb7af294d5d9 328 {
Simon Cooksey 0:fb7af294d5d9 329 if( ctx == NULL )
Simon Cooksey 0:fb7af294d5d9 330 return;
Simon Cooksey 0:fb7af294d5d9 331
Simon Cooksey 0:fb7af294d5d9 332 mbedtls_zeroize( ctx, sizeof( mbedtls_des3_context ) );
Simon Cooksey 0:fb7af294d5d9 333 }
Simon Cooksey 0:fb7af294d5d9 334
Simon Cooksey 0:fb7af294d5d9 335 static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
Simon Cooksey 0:fb7af294d5d9 336 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
Simon Cooksey 0:fb7af294d5d9 337 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
Simon Cooksey 0:fb7af294d5d9 338 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
Simon Cooksey 0:fb7af294d5d9 339 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
Simon Cooksey 0:fb7af294d5d9 340 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
Simon Cooksey 0:fb7af294d5d9 341 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
Simon Cooksey 0:fb7af294d5d9 342 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
Simon Cooksey 0:fb7af294d5d9 343 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
Simon Cooksey 0:fb7af294d5d9 344 254 };
Simon Cooksey 0:fb7af294d5d9 345
Simon Cooksey 0:fb7af294d5d9 346 void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 347 {
Simon Cooksey 0:fb7af294d5d9 348 int i;
Simon Cooksey 0:fb7af294d5d9 349
Simon Cooksey 0:fb7af294d5d9 350 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
Simon Cooksey 0:fb7af294d5d9 351 key[i] = odd_parity_table[key[i] / 2];
Simon Cooksey 0:fb7af294d5d9 352 }
Simon Cooksey 0:fb7af294d5d9 353
Simon Cooksey 0:fb7af294d5d9 354 /*
Simon Cooksey 0:fb7af294d5d9 355 * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
Simon Cooksey 0:fb7af294d5d9 356 */
Simon Cooksey 0:fb7af294d5d9 357 int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 358 {
Simon Cooksey 0:fb7af294d5d9 359 int i;
Simon Cooksey 0:fb7af294d5d9 360
Simon Cooksey 0:fb7af294d5d9 361 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
Simon Cooksey 0:fb7af294d5d9 362 if( key[i] != odd_parity_table[key[i] / 2] )
Simon Cooksey 0:fb7af294d5d9 363 return( 1 );
Simon Cooksey 0:fb7af294d5d9 364
Simon Cooksey 0:fb7af294d5d9 365 return( 0 );
Simon Cooksey 0:fb7af294d5d9 366 }
Simon Cooksey 0:fb7af294d5d9 367
Simon Cooksey 0:fb7af294d5d9 368 /*
Simon Cooksey 0:fb7af294d5d9 369 * Table of weak and semi-weak keys
Simon Cooksey 0:fb7af294d5d9 370 *
Simon Cooksey 0:fb7af294d5d9 371 * Source: http://en.wikipedia.org/wiki/Weak_key
Simon Cooksey 0:fb7af294d5d9 372 *
Simon Cooksey 0:fb7af294d5d9 373 * Weak:
Simon Cooksey 0:fb7af294d5d9 374 * Alternating ones + zeros (0x0101010101010101)
Simon Cooksey 0:fb7af294d5d9 375 * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
Simon Cooksey 0:fb7af294d5d9 376 * '0xE0E0E0E0F1F1F1F1'
Simon Cooksey 0:fb7af294d5d9 377 * '0x1F1F1F1F0E0E0E0E'
Simon Cooksey 0:fb7af294d5d9 378 *
Simon Cooksey 0:fb7af294d5d9 379 * Semi-weak:
Simon Cooksey 0:fb7af294d5d9 380 * 0x011F011F010E010E and 0x1F011F010E010E01
Simon Cooksey 0:fb7af294d5d9 381 * 0x01E001E001F101F1 and 0xE001E001F101F101
Simon Cooksey 0:fb7af294d5d9 382 * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
Simon Cooksey 0:fb7af294d5d9 383 * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
Simon Cooksey 0:fb7af294d5d9 384 * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
Simon Cooksey 0:fb7af294d5d9 385 * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
Simon Cooksey 0:fb7af294d5d9 386 *
Simon Cooksey 0:fb7af294d5d9 387 */
Simon Cooksey 0:fb7af294d5d9 388
Simon Cooksey 0:fb7af294d5d9 389 #define WEAK_KEY_COUNT 16
Simon Cooksey 0:fb7af294d5d9 390
Simon Cooksey 0:fb7af294d5d9 391 static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] =
Simon Cooksey 0:fb7af294d5d9 392 {
Simon Cooksey 0:fb7af294d5d9 393 { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
Simon Cooksey 0:fb7af294d5d9 394 { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
Simon Cooksey 0:fb7af294d5d9 395 { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
Simon Cooksey 0:fb7af294d5d9 396 { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
Simon Cooksey 0:fb7af294d5d9 397
Simon Cooksey 0:fb7af294d5d9 398 { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
Simon Cooksey 0:fb7af294d5d9 399 { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
Simon Cooksey 0:fb7af294d5d9 400 { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
Simon Cooksey 0:fb7af294d5d9 401 { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
Simon Cooksey 0:fb7af294d5d9 402 { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
Simon Cooksey 0:fb7af294d5d9 403 { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
Simon Cooksey 0:fb7af294d5d9 404 { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
Simon Cooksey 0:fb7af294d5d9 405 { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
Simon Cooksey 0:fb7af294d5d9 406 { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
Simon Cooksey 0:fb7af294d5d9 407 { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
Simon Cooksey 0:fb7af294d5d9 408 { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
Simon Cooksey 0:fb7af294d5d9 409 { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
Simon Cooksey 0:fb7af294d5d9 410 };
Simon Cooksey 0:fb7af294d5d9 411
Simon Cooksey 0:fb7af294d5d9 412 int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 413 {
Simon Cooksey 0:fb7af294d5d9 414 int i;
Simon Cooksey 0:fb7af294d5d9 415
Simon Cooksey 0:fb7af294d5d9 416 for( i = 0; i < WEAK_KEY_COUNT; i++ )
Simon Cooksey 0:fb7af294d5d9 417 if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 )
Simon Cooksey 0:fb7af294d5d9 418 return( 1 );
Simon Cooksey 0:fb7af294d5d9 419
Simon Cooksey 0:fb7af294d5d9 420 return( 0 );
Simon Cooksey 0:fb7af294d5d9 421 }
Simon Cooksey 0:fb7af294d5d9 422
Simon Cooksey 0:fb7af294d5d9 423 #if !defined(MBEDTLS_DES_SETKEY_ALT)
Simon Cooksey 0:fb7af294d5d9 424 void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 425 {
Simon Cooksey 0:fb7af294d5d9 426 int i;
Simon Cooksey 0:fb7af294d5d9 427 uint32_t X, Y, T;
Simon Cooksey 0:fb7af294d5d9 428
Simon Cooksey 0:fb7af294d5d9 429 GET_UINT32_BE( X, key, 0 );
Simon Cooksey 0:fb7af294d5d9 430 GET_UINT32_BE( Y, key, 4 );
Simon Cooksey 0:fb7af294d5d9 431
Simon Cooksey 0:fb7af294d5d9 432 /*
Simon Cooksey 0:fb7af294d5d9 433 * Permuted Choice 1
Simon Cooksey 0:fb7af294d5d9 434 */
Simon Cooksey 0:fb7af294d5d9 435 T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
Simon Cooksey 0:fb7af294d5d9 436 T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
Simon Cooksey 0:fb7af294d5d9 437
Simon Cooksey 0:fb7af294d5d9 438 X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
Simon Cooksey 0:fb7af294d5d9 439 | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
Simon Cooksey 0:fb7af294d5d9 440 | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
Simon Cooksey 0:fb7af294d5d9 441 | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
Simon Cooksey 0:fb7af294d5d9 442
Simon Cooksey 0:fb7af294d5d9 443 Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
Simon Cooksey 0:fb7af294d5d9 444 | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
Simon Cooksey 0:fb7af294d5d9 445 | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
Simon Cooksey 0:fb7af294d5d9 446 | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
Simon Cooksey 0:fb7af294d5d9 447
Simon Cooksey 0:fb7af294d5d9 448 X &= 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 449 Y &= 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 450
Simon Cooksey 0:fb7af294d5d9 451 /*
Simon Cooksey 0:fb7af294d5d9 452 * calculate subkeys
Simon Cooksey 0:fb7af294d5d9 453 */
Simon Cooksey 0:fb7af294d5d9 454 for( i = 0; i < 16; i++ )
Simon Cooksey 0:fb7af294d5d9 455 {
Simon Cooksey 0:fb7af294d5d9 456 if( i < 2 || i == 8 || i == 15 )
Simon Cooksey 0:fb7af294d5d9 457 {
Simon Cooksey 0:fb7af294d5d9 458 X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 459 Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 460 }
Simon Cooksey 0:fb7af294d5d9 461 else
Simon Cooksey 0:fb7af294d5d9 462 {
Simon Cooksey 0:fb7af294d5d9 463 X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 464 Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
Simon Cooksey 0:fb7af294d5d9 465 }
Simon Cooksey 0:fb7af294d5d9 466
Simon Cooksey 0:fb7af294d5d9 467 *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
Simon Cooksey 0:fb7af294d5d9 468 | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
Simon Cooksey 0:fb7af294d5d9 469 | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
Simon Cooksey 0:fb7af294d5d9 470 | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
Simon Cooksey 0:fb7af294d5d9 471 | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
Simon Cooksey 0:fb7af294d5d9 472 | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
Simon Cooksey 0:fb7af294d5d9 473 | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
Simon Cooksey 0:fb7af294d5d9 474 | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
Simon Cooksey 0:fb7af294d5d9 475 | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
Simon Cooksey 0:fb7af294d5d9 476 | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
Simon Cooksey 0:fb7af294d5d9 477 | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
Simon Cooksey 0:fb7af294d5d9 478
Simon Cooksey 0:fb7af294d5d9 479 *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
Simon Cooksey 0:fb7af294d5d9 480 | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
Simon Cooksey 0:fb7af294d5d9 481 | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
Simon Cooksey 0:fb7af294d5d9 482 | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
Simon Cooksey 0:fb7af294d5d9 483 | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
Simon Cooksey 0:fb7af294d5d9 484 | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
Simon Cooksey 0:fb7af294d5d9 485 | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
Simon Cooksey 0:fb7af294d5d9 486 | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
Simon Cooksey 0:fb7af294d5d9 487 | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
Simon Cooksey 0:fb7af294d5d9 488 | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
Simon Cooksey 0:fb7af294d5d9 489 | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
Simon Cooksey 0:fb7af294d5d9 490 }
Simon Cooksey 0:fb7af294d5d9 491 }
Simon Cooksey 0:fb7af294d5d9 492 #endif /* !MBEDTLS_DES_SETKEY_ALT */
Simon Cooksey 0:fb7af294d5d9 493
Simon Cooksey 0:fb7af294d5d9 494 /*
Simon Cooksey 0:fb7af294d5d9 495 * DES key schedule (56-bit, encryption)
Simon Cooksey 0:fb7af294d5d9 496 */
Simon Cooksey 0:fb7af294d5d9 497 int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 498 {
Simon Cooksey 0:fb7af294d5d9 499 mbedtls_des_setkey( ctx->sk, key );
Simon Cooksey 0:fb7af294d5d9 500
Simon Cooksey 0:fb7af294d5d9 501 return( 0 );
Simon Cooksey 0:fb7af294d5d9 502 }
Simon Cooksey 0:fb7af294d5d9 503
Simon Cooksey 0:fb7af294d5d9 504 /*
Simon Cooksey 0:fb7af294d5d9 505 * DES key schedule (56-bit, decryption)
Simon Cooksey 0:fb7af294d5d9 506 */
Simon Cooksey 0:fb7af294d5d9 507 int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
Simon Cooksey 0:fb7af294d5d9 508 {
Simon Cooksey 0:fb7af294d5d9 509 int i;
Simon Cooksey 0:fb7af294d5d9 510
Simon Cooksey 0:fb7af294d5d9 511 mbedtls_des_setkey( ctx->sk, key );
Simon Cooksey 0:fb7af294d5d9 512
Simon Cooksey 0:fb7af294d5d9 513 for( i = 0; i < 16; i += 2 )
Simon Cooksey 0:fb7af294d5d9 514 {
Simon Cooksey 0:fb7af294d5d9 515 SWAP( ctx->sk[i ], ctx->sk[30 - i] );
Simon Cooksey 0:fb7af294d5d9 516 SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
Simon Cooksey 0:fb7af294d5d9 517 }
Simon Cooksey 0:fb7af294d5d9 518
Simon Cooksey 0:fb7af294d5d9 519 return( 0 );
Simon Cooksey 0:fb7af294d5d9 520 }
Simon Cooksey 0:fb7af294d5d9 521
Simon Cooksey 0:fb7af294d5d9 522 static void des3_set2key( uint32_t esk[96],
Simon Cooksey 0:fb7af294d5d9 523 uint32_t dsk[96],
Simon Cooksey 0:fb7af294d5d9 524 const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] )
Simon Cooksey 0:fb7af294d5d9 525 {
Simon Cooksey 0:fb7af294d5d9 526 int i;
Simon Cooksey 0:fb7af294d5d9 527
Simon Cooksey 0:fb7af294d5d9 528 mbedtls_des_setkey( esk, key );
Simon Cooksey 0:fb7af294d5d9 529 mbedtls_des_setkey( dsk + 32, key + 8 );
Simon Cooksey 0:fb7af294d5d9 530
Simon Cooksey 0:fb7af294d5d9 531 for( i = 0; i < 32; i += 2 )
Simon Cooksey 0:fb7af294d5d9 532 {
Simon Cooksey 0:fb7af294d5d9 533 dsk[i ] = esk[30 - i];
Simon Cooksey 0:fb7af294d5d9 534 dsk[i + 1] = esk[31 - i];
Simon Cooksey 0:fb7af294d5d9 535
Simon Cooksey 0:fb7af294d5d9 536 esk[i + 32] = dsk[62 - i];
Simon Cooksey 0:fb7af294d5d9 537 esk[i + 33] = dsk[63 - i];
Simon Cooksey 0:fb7af294d5d9 538
Simon Cooksey 0:fb7af294d5d9 539 esk[i + 64] = esk[i ];
Simon Cooksey 0:fb7af294d5d9 540 esk[i + 65] = esk[i + 1];
Simon Cooksey 0:fb7af294d5d9 541
Simon Cooksey 0:fb7af294d5d9 542 dsk[i + 64] = dsk[i ];
Simon Cooksey 0:fb7af294d5d9 543 dsk[i + 65] = dsk[i + 1];
Simon Cooksey 0:fb7af294d5d9 544 }
Simon Cooksey 0:fb7af294d5d9 545 }
Simon Cooksey 0:fb7af294d5d9 546
Simon Cooksey 0:fb7af294d5d9 547 /*
Simon Cooksey 0:fb7af294d5d9 548 * Triple-DES key schedule (112-bit, encryption)
Simon Cooksey 0:fb7af294d5d9 549 */
Simon Cooksey 0:fb7af294d5d9 550 int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 551 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
Simon Cooksey 0:fb7af294d5d9 552 {
Simon Cooksey 0:fb7af294d5d9 553 uint32_t sk[96];
Simon Cooksey 0:fb7af294d5d9 554
Simon Cooksey 0:fb7af294d5d9 555 des3_set2key( ctx->sk, sk, key );
Simon Cooksey 0:fb7af294d5d9 556 mbedtls_zeroize( sk, sizeof( sk ) );
Simon Cooksey 0:fb7af294d5d9 557
Simon Cooksey 0:fb7af294d5d9 558 return( 0 );
Simon Cooksey 0:fb7af294d5d9 559 }
Simon Cooksey 0:fb7af294d5d9 560
Simon Cooksey 0:fb7af294d5d9 561 /*
Simon Cooksey 0:fb7af294d5d9 562 * Triple-DES key schedule (112-bit, decryption)
Simon Cooksey 0:fb7af294d5d9 563 */
Simon Cooksey 0:fb7af294d5d9 564 int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 565 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
Simon Cooksey 0:fb7af294d5d9 566 {
Simon Cooksey 0:fb7af294d5d9 567 uint32_t sk[96];
Simon Cooksey 0:fb7af294d5d9 568
Simon Cooksey 0:fb7af294d5d9 569 des3_set2key( sk, ctx->sk, key );
Simon Cooksey 0:fb7af294d5d9 570 mbedtls_zeroize( sk, sizeof( sk ) );
Simon Cooksey 0:fb7af294d5d9 571
Simon Cooksey 0:fb7af294d5d9 572 return( 0 );
Simon Cooksey 0:fb7af294d5d9 573 }
Simon Cooksey 0:fb7af294d5d9 574
Simon Cooksey 0:fb7af294d5d9 575 static void des3_set3key( uint32_t esk[96],
Simon Cooksey 0:fb7af294d5d9 576 uint32_t dsk[96],
Simon Cooksey 0:fb7af294d5d9 577 const unsigned char key[24] )
Simon Cooksey 0:fb7af294d5d9 578 {
Simon Cooksey 0:fb7af294d5d9 579 int i;
Simon Cooksey 0:fb7af294d5d9 580
Simon Cooksey 0:fb7af294d5d9 581 mbedtls_des_setkey( esk, key );
Simon Cooksey 0:fb7af294d5d9 582 mbedtls_des_setkey( dsk + 32, key + 8 );
Simon Cooksey 0:fb7af294d5d9 583 mbedtls_des_setkey( esk + 64, key + 16 );
Simon Cooksey 0:fb7af294d5d9 584
Simon Cooksey 0:fb7af294d5d9 585 for( i = 0; i < 32; i += 2 )
Simon Cooksey 0:fb7af294d5d9 586 {
Simon Cooksey 0:fb7af294d5d9 587 dsk[i ] = esk[94 - i];
Simon Cooksey 0:fb7af294d5d9 588 dsk[i + 1] = esk[95 - i];
Simon Cooksey 0:fb7af294d5d9 589
Simon Cooksey 0:fb7af294d5d9 590 esk[i + 32] = dsk[62 - i];
Simon Cooksey 0:fb7af294d5d9 591 esk[i + 33] = dsk[63 - i];
Simon Cooksey 0:fb7af294d5d9 592
Simon Cooksey 0:fb7af294d5d9 593 dsk[i + 64] = esk[30 - i];
Simon Cooksey 0:fb7af294d5d9 594 dsk[i + 65] = esk[31 - i];
Simon Cooksey 0:fb7af294d5d9 595 }
Simon Cooksey 0:fb7af294d5d9 596 }
Simon Cooksey 0:fb7af294d5d9 597
Simon Cooksey 0:fb7af294d5d9 598 /*
Simon Cooksey 0:fb7af294d5d9 599 * Triple-DES key schedule (168-bit, encryption)
Simon Cooksey 0:fb7af294d5d9 600 */
Simon Cooksey 0:fb7af294d5d9 601 int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 602 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
Simon Cooksey 0:fb7af294d5d9 603 {
Simon Cooksey 0:fb7af294d5d9 604 uint32_t sk[96];
Simon Cooksey 0:fb7af294d5d9 605
Simon Cooksey 0:fb7af294d5d9 606 des3_set3key( ctx->sk, sk, key );
Simon Cooksey 0:fb7af294d5d9 607 mbedtls_zeroize( sk, sizeof( sk ) );
Simon Cooksey 0:fb7af294d5d9 608
Simon Cooksey 0:fb7af294d5d9 609 return( 0 );
Simon Cooksey 0:fb7af294d5d9 610 }
Simon Cooksey 0:fb7af294d5d9 611
Simon Cooksey 0:fb7af294d5d9 612 /*
Simon Cooksey 0:fb7af294d5d9 613 * Triple-DES key schedule (168-bit, decryption)
Simon Cooksey 0:fb7af294d5d9 614 */
Simon Cooksey 0:fb7af294d5d9 615 int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 616 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
Simon Cooksey 0:fb7af294d5d9 617 {
Simon Cooksey 0:fb7af294d5d9 618 uint32_t sk[96];
Simon Cooksey 0:fb7af294d5d9 619
Simon Cooksey 0:fb7af294d5d9 620 des3_set3key( sk, ctx->sk, key );
Simon Cooksey 0:fb7af294d5d9 621 mbedtls_zeroize( sk, sizeof( sk ) );
Simon Cooksey 0:fb7af294d5d9 622
Simon Cooksey 0:fb7af294d5d9 623 return( 0 );
Simon Cooksey 0:fb7af294d5d9 624 }
Simon Cooksey 0:fb7af294d5d9 625
Simon Cooksey 0:fb7af294d5d9 626 /*
Simon Cooksey 0:fb7af294d5d9 627 * DES-ECB block encryption/decryption
Simon Cooksey 0:fb7af294d5d9 628 */
Simon Cooksey 0:fb7af294d5d9 629 #if !defined(MBEDTLS_DES_CRYPT_ECB_ALT)
Simon Cooksey 0:fb7af294d5d9 630 int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
Simon Cooksey 0:fb7af294d5d9 631 const unsigned char input[8],
Simon Cooksey 0:fb7af294d5d9 632 unsigned char output[8] )
Simon Cooksey 0:fb7af294d5d9 633 {
Simon Cooksey 0:fb7af294d5d9 634 int i;
Simon Cooksey 0:fb7af294d5d9 635 uint32_t X, Y, T, *SK;
Simon Cooksey 0:fb7af294d5d9 636
Simon Cooksey 0:fb7af294d5d9 637 SK = ctx->sk;
Simon Cooksey 0:fb7af294d5d9 638
Simon Cooksey 0:fb7af294d5d9 639 GET_UINT32_BE( X, input, 0 );
Simon Cooksey 0:fb7af294d5d9 640 GET_UINT32_BE( Y, input, 4 );
Simon Cooksey 0:fb7af294d5d9 641
Simon Cooksey 0:fb7af294d5d9 642 DES_IP( X, Y );
Simon Cooksey 0:fb7af294d5d9 643
Simon Cooksey 0:fb7af294d5d9 644 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 645 {
Simon Cooksey 0:fb7af294d5d9 646 DES_ROUND( Y, X );
Simon Cooksey 0:fb7af294d5d9 647 DES_ROUND( X, Y );
Simon Cooksey 0:fb7af294d5d9 648 }
Simon Cooksey 0:fb7af294d5d9 649
Simon Cooksey 0:fb7af294d5d9 650 DES_FP( Y, X );
Simon Cooksey 0:fb7af294d5d9 651
Simon Cooksey 0:fb7af294d5d9 652 PUT_UINT32_BE( Y, output, 0 );
Simon Cooksey 0:fb7af294d5d9 653 PUT_UINT32_BE( X, output, 4 );
Simon Cooksey 0:fb7af294d5d9 654
Simon Cooksey 0:fb7af294d5d9 655 return( 0 );
Simon Cooksey 0:fb7af294d5d9 656 }
Simon Cooksey 0:fb7af294d5d9 657 #endif /* !MBEDTLS_DES_CRYPT_ECB_ALT */
Simon Cooksey 0:fb7af294d5d9 658
Simon Cooksey 0:fb7af294d5d9 659 #if defined(MBEDTLS_CIPHER_MODE_CBC)
Simon Cooksey 0:fb7af294d5d9 660 /*
Simon Cooksey 0:fb7af294d5d9 661 * DES-CBC buffer encryption/decryption
Simon Cooksey 0:fb7af294d5d9 662 */
Simon Cooksey 0:fb7af294d5d9 663 int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
Simon Cooksey 0:fb7af294d5d9 664 int mode,
Simon Cooksey 0:fb7af294d5d9 665 size_t length,
Simon Cooksey 0:fb7af294d5d9 666 unsigned char iv[8],
Simon Cooksey 0:fb7af294d5d9 667 const unsigned char *input,
Simon Cooksey 0:fb7af294d5d9 668 unsigned char *output )
Simon Cooksey 0:fb7af294d5d9 669 {
Simon Cooksey 0:fb7af294d5d9 670 int i;
Simon Cooksey 0:fb7af294d5d9 671 unsigned char temp[8];
Simon Cooksey 0:fb7af294d5d9 672
Simon Cooksey 0:fb7af294d5d9 673 if( length % 8 )
Simon Cooksey 0:fb7af294d5d9 674 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
Simon Cooksey 0:fb7af294d5d9 675
Simon Cooksey 0:fb7af294d5d9 676 if( mode == MBEDTLS_DES_ENCRYPT )
Simon Cooksey 0:fb7af294d5d9 677 {
Simon Cooksey 0:fb7af294d5d9 678 while( length > 0 )
Simon Cooksey 0:fb7af294d5d9 679 {
Simon Cooksey 0:fb7af294d5d9 680 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 681 output[i] = (unsigned char)( input[i] ^ iv[i] );
Simon Cooksey 0:fb7af294d5d9 682
Simon Cooksey 0:fb7af294d5d9 683 mbedtls_des_crypt_ecb( ctx, output, output );
Simon Cooksey 0:fb7af294d5d9 684 memcpy( iv, output, 8 );
Simon Cooksey 0:fb7af294d5d9 685
Simon Cooksey 0:fb7af294d5d9 686 input += 8;
Simon Cooksey 0:fb7af294d5d9 687 output += 8;
Simon Cooksey 0:fb7af294d5d9 688 length -= 8;
Simon Cooksey 0:fb7af294d5d9 689 }
Simon Cooksey 0:fb7af294d5d9 690 }
Simon Cooksey 0:fb7af294d5d9 691 else /* MBEDTLS_DES_DECRYPT */
Simon Cooksey 0:fb7af294d5d9 692 {
Simon Cooksey 0:fb7af294d5d9 693 while( length > 0 )
Simon Cooksey 0:fb7af294d5d9 694 {
Simon Cooksey 0:fb7af294d5d9 695 memcpy( temp, input, 8 );
Simon Cooksey 0:fb7af294d5d9 696 mbedtls_des_crypt_ecb( ctx, input, output );
Simon Cooksey 0:fb7af294d5d9 697
Simon Cooksey 0:fb7af294d5d9 698 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 699 output[i] = (unsigned char)( output[i] ^ iv[i] );
Simon Cooksey 0:fb7af294d5d9 700
Simon Cooksey 0:fb7af294d5d9 701 memcpy( iv, temp, 8 );
Simon Cooksey 0:fb7af294d5d9 702
Simon Cooksey 0:fb7af294d5d9 703 input += 8;
Simon Cooksey 0:fb7af294d5d9 704 output += 8;
Simon Cooksey 0:fb7af294d5d9 705 length -= 8;
Simon Cooksey 0:fb7af294d5d9 706 }
Simon Cooksey 0:fb7af294d5d9 707 }
Simon Cooksey 0:fb7af294d5d9 708
Simon Cooksey 0:fb7af294d5d9 709 return( 0 );
Simon Cooksey 0:fb7af294d5d9 710 }
Simon Cooksey 0:fb7af294d5d9 711 #endif /* MBEDTLS_CIPHER_MODE_CBC */
Simon Cooksey 0:fb7af294d5d9 712
Simon Cooksey 0:fb7af294d5d9 713 /*
Simon Cooksey 0:fb7af294d5d9 714 * 3DES-ECB block encryption/decryption
Simon Cooksey 0:fb7af294d5d9 715 */
Simon Cooksey 0:fb7af294d5d9 716 #if !defined(MBEDTLS_DES3_CRYPT_ECB_ALT)
Simon Cooksey 0:fb7af294d5d9 717 int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 718 const unsigned char input[8],
Simon Cooksey 0:fb7af294d5d9 719 unsigned char output[8] )
Simon Cooksey 0:fb7af294d5d9 720 {
Simon Cooksey 0:fb7af294d5d9 721 int i;
Simon Cooksey 0:fb7af294d5d9 722 uint32_t X, Y, T, *SK;
Simon Cooksey 0:fb7af294d5d9 723
Simon Cooksey 0:fb7af294d5d9 724 SK = ctx->sk;
Simon Cooksey 0:fb7af294d5d9 725
Simon Cooksey 0:fb7af294d5d9 726 GET_UINT32_BE( X, input, 0 );
Simon Cooksey 0:fb7af294d5d9 727 GET_UINT32_BE( Y, input, 4 );
Simon Cooksey 0:fb7af294d5d9 728
Simon Cooksey 0:fb7af294d5d9 729 DES_IP( X, Y );
Simon Cooksey 0:fb7af294d5d9 730
Simon Cooksey 0:fb7af294d5d9 731 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 732 {
Simon Cooksey 0:fb7af294d5d9 733 DES_ROUND( Y, X );
Simon Cooksey 0:fb7af294d5d9 734 DES_ROUND( X, Y );
Simon Cooksey 0:fb7af294d5d9 735 }
Simon Cooksey 0:fb7af294d5d9 736
Simon Cooksey 0:fb7af294d5d9 737 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 738 {
Simon Cooksey 0:fb7af294d5d9 739 DES_ROUND( X, Y );
Simon Cooksey 0:fb7af294d5d9 740 DES_ROUND( Y, X );
Simon Cooksey 0:fb7af294d5d9 741 }
Simon Cooksey 0:fb7af294d5d9 742
Simon Cooksey 0:fb7af294d5d9 743 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 744 {
Simon Cooksey 0:fb7af294d5d9 745 DES_ROUND( Y, X );
Simon Cooksey 0:fb7af294d5d9 746 DES_ROUND( X, Y );
Simon Cooksey 0:fb7af294d5d9 747 }
Simon Cooksey 0:fb7af294d5d9 748
Simon Cooksey 0:fb7af294d5d9 749 DES_FP( Y, X );
Simon Cooksey 0:fb7af294d5d9 750
Simon Cooksey 0:fb7af294d5d9 751 PUT_UINT32_BE( Y, output, 0 );
Simon Cooksey 0:fb7af294d5d9 752 PUT_UINT32_BE( X, output, 4 );
Simon Cooksey 0:fb7af294d5d9 753
Simon Cooksey 0:fb7af294d5d9 754 return( 0 );
Simon Cooksey 0:fb7af294d5d9 755 }
Simon Cooksey 0:fb7af294d5d9 756 #endif /* !MBEDTLS_DES3_CRYPT_ECB_ALT */
Simon Cooksey 0:fb7af294d5d9 757
Simon Cooksey 0:fb7af294d5d9 758 #if defined(MBEDTLS_CIPHER_MODE_CBC)
Simon Cooksey 0:fb7af294d5d9 759 /*
Simon Cooksey 0:fb7af294d5d9 760 * 3DES-CBC buffer encryption/decryption
Simon Cooksey 0:fb7af294d5d9 761 */
Simon Cooksey 0:fb7af294d5d9 762 int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
Simon Cooksey 0:fb7af294d5d9 763 int mode,
Simon Cooksey 0:fb7af294d5d9 764 size_t length,
Simon Cooksey 0:fb7af294d5d9 765 unsigned char iv[8],
Simon Cooksey 0:fb7af294d5d9 766 const unsigned char *input,
Simon Cooksey 0:fb7af294d5d9 767 unsigned char *output )
Simon Cooksey 0:fb7af294d5d9 768 {
Simon Cooksey 0:fb7af294d5d9 769 int i;
Simon Cooksey 0:fb7af294d5d9 770 unsigned char temp[8];
Simon Cooksey 0:fb7af294d5d9 771
Simon Cooksey 0:fb7af294d5d9 772 if( length % 8 )
Simon Cooksey 0:fb7af294d5d9 773 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
Simon Cooksey 0:fb7af294d5d9 774
Simon Cooksey 0:fb7af294d5d9 775 if( mode == MBEDTLS_DES_ENCRYPT )
Simon Cooksey 0:fb7af294d5d9 776 {
Simon Cooksey 0:fb7af294d5d9 777 while( length > 0 )
Simon Cooksey 0:fb7af294d5d9 778 {
Simon Cooksey 0:fb7af294d5d9 779 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 780 output[i] = (unsigned char)( input[i] ^ iv[i] );
Simon Cooksey 0:fb7af294d5d9 781
Simon Cooksey 0:fb7af294d5d9 782 mbedtls_des3_crypt_ecb( ctx, output, output );
Simon Cooksey 0:fb7af294d5d9 783 memcpy( iv, output, 8 );
Simon Cooksey 0:fb7af294d5d9 784
Simon Cooksey 0:fb7af294d5d9 785 input += 8;
Simon Cooksey 0:fb7af294d5d9 786 output += 8;
Simon Cooksey 0:fb7af294d5d9 787 length -= 8;
Simon Cooksey 0:fb7af294d5d9 788 }
Simon Cooksey 0:fb7af294d5d9 789 }
Simon Cooksey 0:fb7af294d5d9 790 else /* MBEDTLS_DES_DECRYPT */
Simon Cooksey 0:fb7af294d5d9 791 {
Simon Cooksey 0:fb7af294d5d9 792 while( length > 0 )
Simon Cooksey 0:fb7af294d5d9 793 {
Simon Cooksey 0:fb7af294d5d9 794 memcpy( temp, input, 8 );
Simon Cooksey 0:fb7af294d5d9 795 mbedtls_des3_crypt_ecb( ctx, input, output );
Simon Cooksey 0:fb7af294d5d9 796
Simon Cooksey 0:fb7af294d5d9 797 for( i = 0; i < 8; i++ )
Simon Cooksey 0:fb7af294d5d9 798 output[i] = (unsigned char)( output[i] ^ iv[i] );
Simon Cooksey 0:fb7af294d5d9 799
Simon Cooksey 0:fb7af294d5d9 800 memcpy( iv, temp, 8 );
Simon Cooksey 0:fb7af294d5d9 801
Simon Cooksey 0:fb7af294d5d9 802 input += 8;
Simon Cooksey 0:fb7af294d5d9 803 output += 8;
Simon Cooksey 0:fb7af294d5d9 804 length -= 8;
Simon Cooksey 0:fb7af294d5d9 805 }
Simon Cooksey 0:fb7af294d5d9 806 }
Simon Cooksey 0:fb7af294d5d9 807
Simon Cooksey 0:fb7af294d5d9 808 return( 0 );
Simon Cooksey 0:fb7af294d5d9 809 }
Simon Cooksey 0:fb7af294d5d9 810 #endif /* MBEDTLS_CIPHER_MODE_CBC */
Simon Cooksey 0:fb7af294d5d9 811
Simon Cooksey 0:fb7af294d5d9 812 #endif /* !MBEDTLS_DES_ALT */
Simon Cooksey 0:fb7af294d5d9 813
Simon Cooksey 0:fb7af294d5d9 814 #if defined(MBEDTLS_SELF_TEST)
Simon Cooksey 0:fb7af294d5d9 815 /*
Simon Cooksey 0:fb7af294d5d9 816 * DES and 3DES test vectors from:
Simon Cooksey 0:fb7af294d5d9 817 *
Simon Cooksey 0:fb7af294d5d9 818 * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
Simon Cooksey 0:fb7af294d5d9 819 */
Simon Cooksey 0:fb7af294d5d9 820 static const unsigned char des3_test_keys[24] =
Simon Cooksey 0:fb7af294d5d9 821 {
Simon Cooksey 0:fb7af294d5d9 822 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
Simon Cooksey 0:fb7af294d5d9 823 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
Simon Cooksey 0:fb7af294d5d9 824 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
Simon Cooksey 0:fb7af294d5d9 825 };
Simon Cooksey 0:fb7af294d5d9 826
Simon Cooksey 0:fb7af294d5d9 827 static const unsigned char des3_test_buf[8] =
Simon Cooksey 0:fb7af294d5d9 828 {
Simon Cooksey 0:fb7af294d5d9 829 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
Simon Cooksey 0:fb7af294d5d9 830 };
Simon Cooksey 0:fb7af294d5d9 831
Simon Cooksey 0:fb7af294d5d9 832 static const unsigned char des3_test_ecb_dec[3][8] =
Simon Cooksey 0:fb7af294d5d9 833 {
Simon Cooksey 0:fb7af294d5d9 834 { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
Simon Cooksey 0:fb7af294d5d9 835 { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
Simon Cooksey 0:fb7af294d5d9 836 { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
Simon Cooksey 0:fb7af294d5d9 837 };
Simon Cooksey 0:fb7af294d5d9 838
Simon Cooksey 0:fb7af294d5d9 839 static const unsigned char des3_test_ecb_enc[3][8] =
Simon Cooksey 0:fb7af294d5d9 840 {
Simon Cooksey 0:fb7af294d5d9 841 { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
Simon Cooksey 0:fb7af294d5d9 842 { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
Simon Cooksey 0:fb7af294d5d9 843 { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
Simon Cooksey 0:fb7af294d5d9 844 };
Simon Cooksey 0:fb7af294d5d9 845
Simon Cooksey 0:fb7af294d5d9 846 #if defined(MBEDTLS_CIPHER_MODE_CBC)
Simon Cooksey 0:fb7af294d5d9 847 static const unsigned char des3_test_iv[8] =
Simon Cooksey 0:fb7af294d5d9 848 {
Simon Cooksey 0:fb7af294d5d9 849 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
Simon Cooksey 0:fb7af294d5d9 850 };
Simon Cooksey 0:fb7af294d5d9 851
Simon Cooksey 0:fb7af294d5d9 852 static const unsigned char des3_test_cbc_dec[3][8] =
Simon Cooksey 0:fb7af294d5d9 853 {
Simon Cooksey 0:fb7af294d5d9 854 { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
Simon Cooksey 0:fb7af294d5d9 855 { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
Simon Cooksey 0:fb7af294d5d9 856 { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
Simon Cooksey 0:fb7af294d5d9 857 };
Simon Cooksey 0:fb7af294d5d9 858
Simon Cooksey 0:fb7af294d5d9 859 static const unsigned char des3_test_cbc_enc[3][8] =
Simon Cooksey 0:fb7af294d5d9 860 {
Simon Cooksey 0:fb7af294d5d9 861 { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
Simon Cooksey 0:fb7af294d5d9 862 { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
Simon Cooksey 0:fb7af294d5d9 863 { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
Simon Cooksey 0:fb7af294d5d9 864 };
Simon Cooksey 0:fb7af294d5d9 865 #endif /* MBEDTLS_CIPHER_MODE_CBC */
Simon Cooksey 0:fb7af294d5d9 866
Simon Cooksey 0:fb7af294d5d9 867 /*
Simon Cooksey 0:fb7af294d5d9 868 * Checkup routine
Simon Cooksey 0:fb7af294d5d9 869 */
Simon Cooksey 0:fb7af294d5d9 870 int mbedtls_des_self_test( int verbose )
Simon Cooksey 0:fb7af294d5d9 871 {
Simon Cooksey 0:fb7af294d5d9 872 int i, j, u, v, ret = 0;
Simon Cooksey 0:fb7af294d5d9 873 mbedtls_des_context ctx;
Simon Cooksey 0:fb7af294d5d9 874 mbedtls_des3_context ctx3;
Simon Cooksey 0:fb7af294d5d9 875 unsigned char buf[8];
Simon Cooksey 0:fb7af294d5d9 876 #if defined(MBEDTLS_CIPHER_MODE_CBC)
Simon Cooksey 0:fb7af294d5d9 877 unsigned char prv[8];
Simon Cooksey 0:fb7af294d5d9 878 unsigned char iv[8];
Simon Cooksey 0:fb7af294d5d9 879 #endif
Simon Cooksey 0:fb7af294d5d9 880
Simon Cooksey 0:fb7af294d5d9 881 mbedtls_des_init( &ctx );
Simon Cooksey 0:fb7af294d5d9 882 mbedtls_des3_init( &ctx3 );
Simon Cooksey 0:fb7af294d5d9 883 /*
Simon Cooksey 0:fb7af294d5d9 884 * ECB mode
Simon Cooksey 0:fb7af294d5d9 885 */
Simon Cooksey 0:fb7af294d5d9 886 for( i = 0; i < 6; i++ )
Simon Cooksey 0:fb7af294d5d9 887 {
Simon Cooksey 0:fb7af294d5d9 888 u = i >> 1;
Simon Cooksey 0:fb7af294d5d9 889 v = i & 1;
Simon Cooksey 0:fb7af294d5d9 890
Simon Cooksey 0:fb7af294d5d9 891 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 892 mbedtls_printf( " DES%c-ECB-%3d (%s): ",
Simon Cooksey 0:fb7af294d5d9 893 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
Simon Cooksey 0:fb7af294d5d9 894 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
Simon Cooksey 0:fb7af294d5d9 895
Simon Cooksey 0:fb7af294d5d9 896 memcpy( buf, des3_test_buf, 8 );
Simon Cooksey 0:fb7af294d5d9 897
Simon Cooksey 0:fb7af294d5d9 898 switch( i )
Simon Cooksey 0:fb7af294d5d9 899 {
Simon Cooksey 0:fb7af294d5d9 900 case 0:
Simon Cooksey 0:fb7af294d5d9 901 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 902 break;
Simon Cooksey 0:fb7af294d5d9 903
Simon Cooksey 0:fb7af294d5d9 904 case 1:
Simon Cooksey 0:fb7af294d5d9 905 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 906 break;
Simon Cooksey 0:fb7af294d5d9 907
Simon Cooksey 0:fb7af294d5d9 908 case 2:
Simon Cooksey 0:fb7af294d5d9 909 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 910 break;
Simon Cooksey 0:fb7af294d5d9 911
Simon Cooksey 0:fb7af294d5d9 912 case 3:
Simon Cooksey 0:fb7af294d5d9 913 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 914 break;
Simon Cooksey 0:fb7af294d5d9 915
Simon Cooksey 0:fb7af294d5d9 916 case 4:
Simon Cooksey 0:fb7af294d5d9 917 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 918 break;
Simon Cooksey 0:fb7af294d5d9 919
Simon Cooksey 0:fb7af294d5d9 920 case 5:
Simon Cooksey 0:fb7af294d5d9 921 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 922 break;
Simon Cooksey 0:fb7af294d5d9 923
Simon Cooksey 0:fb7af294d5d9 924 default:
Simon Cooksey 0:fb7af294d5d9 925 return( 1 );
Simon Cooksey 0:fb7af294d5d9 926 }
Simon Cooksey 0:fb7af294d5d9 927
Simon Cooksey 0:fb7af294d5d9 928 for( j = 0; j < 10000; j++ )
Simon Cooksey 0:fb7af294d5d9 929 {
Simon Cooksey 0:fb7af294d5d9 930 if( u == 0 )
Simon Cooksey 0:fb7af294d5d9 931 mbedtls_des_crypt_ecb( &ctx, buf, buf );
Simon Cooksey 0:fb7af294d5d9 932 else
Simon Cooksey 0:fb7af294d5d9 933 mbedtls_des3_crypt_ecb( &ctx3, buf, buf );
Simon Cooksey 0:fb7af294d5d9 934 }
Simon Cooksey 0:fb7af294d5d9 935
Simon Cooksey 0:fb7af294d5d9 936 if( ( v == MBEDTLS_DES_DECRYPT &&
Simon Cooksey 0:fb7af294d5d9 937 memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
Simon Cooksey 0:fb7af294d5d9 938 ( v != MBEDTLS_DES_DECRYPT &&
Simon Cooksey 0:fb7af294d5d9 939 memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
Simon Cooksey 0:fb7af294d5d9 940 {
Simon Cooksey 0:fb7af294d5d9 941 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 942 mbedtls_printf( "failed\n" );
Simon Cooksey 0:fb7af294d5d9 943
Simon Cooksey 0:fb7af294d5d9 944 ret = 1;
Simon Cooksey 0:fb7af294d5d9 945 goto exit;
Simon Cooksey 0:fb7af294d5d9 946 }
Simon Cooksey 0:fb7af294d5d9 947
Simon Cooksey 0:fb7af294d5d9 948 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 949 mbedtls_printf( "passed\n" );
Simon Cooksey 0:fb7af294d5d9 950 }
Simon Cooksey 0:fb7af294d5d9 951
Simon Cooksey 0:fb7af294d5d9 952 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 953 mbedtls_printf( "\n" );
Simon Cooksey 0:fb7af294d5d9 954
Simon Cooksey 0:fb7af294d5d9 955 #if defined(MBEDTLS_CIPHER_MODE_CBC)
Simon Cooksey 0:fb7af294d5d9 956 /*
Simon Cooksey 0:fb7af294d5d9 957 * CBC mode
Simon Cooksey 0:fb7af294d5d9 958 */
Simon Cooksey 0:fb7af294d5d9 959 for( i = 0; i < 6; i++ )
Simon Cooksey 0:fb7af294d5d9 960 {
Simon Cooksey 0:fb7af294d5d9 961 u = i >> 1;
Simon Cooksey 0:fb7af294d5d9 962 v = i & 1;
Simon Cooksey 0:fb7af294d5d9 963
Simon Cooksey 0:fb7af294d5d9 964 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 965 mbedtls_printf( " DES%c-CBC-%3d (%s): ",
Simon Cooksey 0:fb7af294d5d9 966 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
Simon Cooksey 0:fb7af294d5d9 967 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
Simon Cooksey 0:fb7af294d5d9 968
Simon Cooksey 0:fb7af294d5d9 969 memcpy( iv, des3_test_iv, 8 );
Simon Cooksey 0:fb7af294d5d9 970 memcpy( prv, des3_test_iv, 8 );
Simon Cooksey 0:fb7af294d5d9 971 memcpy( buf, des3_test_buf, 8 );
Simon Cooksey 0:fb7af294d5d9 972
Simon Cooksey 0:fb7af294d5d9 973 switch( i )
Simon Cooksey 0:fb7af294d5d9 974 {
Simon Cooksey 0:fb7af294d5d9 975 case 0:
Simon Cooksey 0:fb7af294d5d9 976 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 977 break;
Simon Cooksey 0:fb7af294d5d9 978
Simon Cooksey 0:fb7af294d5d9 979 case 1:
Simon Cooksey 0:fb7af294d5d9 980 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 981 break;
Simon Cooksey 0:fb7af294d5d9 982
Simon Cooksey 0:fb7af294d5d9 983 case 2:
Simon Cooksey 0:fb7af294d5d9 984 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 985 break;
Simon Cooksey 0:fb7af294d5d9 986
Simon Cooksey 0:fb7af294d5d9 987 case 3:
Simon Cooksey 0:fb7af294d5d9 988 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 989 break;
Simon Cooksey 0:fb7af294d5d9 990
Simon Cooksey 0:fb7af294d5d9 991 case 4:
Simon Cooksey 0:fb7af294d5d9 992 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 993 break;
Simon Cooksey 0:fb7af294d5d9 994
Simon Cooksey 0:fb7af294d5d9 995 case 5:
Simon Cooksey 0:fb7af294d5d9 996 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
Simon Cooksey 0:fb7af294d5d9 997 break;
Simon Cooksey 0:fb7af294d5d9 998
Simon Cooksey 0:fb7af294d5d9 999 default:
Simon Cooksey 0:fb7af294d5d9 1000 return( 1 );
Simon Cooksey 0:fb7af294d5d9 1001 }
Simon Cooksey 0:fb7af294d5d9 1002
Simon Cooksey 0:fb7af294d5d9 1003 if( v == MBEDTLS_DES_DECRYPT )
Simon Cooksey 0:fb7af294d5d9 1004 {
Simon Cooksey 0:fb7af294d5d9 1005 for( j = 0; j < 10000; j++ )
Simon Cooksey 0:fb7af294d5d9 1006 {
Simon Cooksey 0:fb7af294d5d9 1007 if( u == 0 )
Simon Cooksey 0:fb7af294d5d9 1008 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
Simon Cooksey 0:fb7af294d5d9 1009 else
Simon Cooksey 0:fb7af294d5d9 1010 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
Simon Cooksey 0:fb7af294d5d9 1011 }
Simon Cooksey 0:fb7af294d5d9 1012 }
Simon Cooksey 0:fb7af294d5d9 1013 else
Simon Cooksey 0:fb7af294d5d9 1014 {
Simon Cooksey 0:fb7af294d5d9 1015 for( j = 0; j < 10000; j++ )
Simon Cooksey 0:fb7af294d5d9 1016 {
Simon Cooksey 0:fb7af294d5d9 1017 unsigned char tmp[8];
Simon Cooksey 0:fb7af294d5d9 1018
Simon Cooksey 0:fb7af294d5d9 1019 if( u == 0 )
Simon Cooksey 0:fb7af294d5d9 1020 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
Simon Cooksey 0:fb7af294d5d9 1021 else
Simon Cooksey 0:fb7af294d5d9 1022 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
Simon Cooksey 0:fb7af294d5d9 1023
Simon Cooksey 0:fb7af294d5d9 1024 memcpy( tmp, prv, 8 );
Simon Cooksey 0:fb7af294d5d9 1025 memcpy( prv, buf, 8 );
Simon Cooksey 0:fb7af294d5d9 1026 memcpy( buf, tmp, 8 );
Simon Cooksey 0:fb7af294d5d9 1027 }
Simon Cooksey 0:fb7af294d5d9 1028
Simon Cooksey 0:fb7af294d5d9 1029 memcpy( buf, prv, 8 );
Simon Cooksey 0:fb7af294d5d9 1030 }
Simon Cooksey 0:fb7af294d5d9 1031
Simon Cooksey 0:fb7af294d5d9 1032 if( ( v == MBEDTLS_DES_DECRYPT &&
Simon Cooksey 0:fb7af294d5d9 1033 memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
Simon Cooksey 0:fb7af294d5d9 1034 ( v != MBEDTLS_DES_DECRYPT &&
Simon Cooksey 0:fb7af294d5d9 1035 memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
Simon Cooksey 0:fb7af294d5d9 1036 {
Simon Cooksey 0:fb7af294d5d9 1037 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 1038 mbedtls_printf( "failed\n" );
Simon Cooksey 0:fb7af294d5d9 1039
Simon Cooksey 0:fb7af294d5d9 1040 ret = 1;
Simon Cooksey 0:fb7af294d5d9 1041 goto exit;
Simon Cooksey 0:fb7af294d5d9 1042 }
Simon Cooksey 0:fb7af294d5d9 1043
Simon Cooksey 0:fb7af294d5d9 1044 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 1045 mbedtls_printf( "passed\n" );
Simon Cooksey 0:fb7af294d5d9 1046 }
Simon Cooksey 0:fb7af294d5d9 1047 #endif /* MBEDTLS_CIPHER_MODE_CBC */
Simon Cooksey 0:fb7af294d5d9 1048
Simon Cooksey 0:fb7af294d5d9 1049 if( verbose != 0 )
Simon Cooksey 0:fb7af294d5d9 1050 mbedtls_printf( "\n" );
Simon Cooksey 0:fb7af294d5d9 1051
Simon Cooksey 0:fb7af294d5d9 1052 exit:
Simon Cooksey 0:fb7af294d5d9 1053 mbedtls_des_free( &ctx );
Simon Cooksey 0:fb7af294d5d9 1054 mbedtls_des3_free( &ctx3 );
Simon Cooksey 0:fb7af294d5d9 1055
Simon Cooksey 0:fb7af294d5d9 1056 return( ret );
Simon Cooksey 0:fb7af294d5d9 1057 }
Simon Cooksey 0:fb7af294d5d9 1058
Simon Cooksey 0:fb7af294d5d9 1059 #endif /* MBEDTLS_SELF_TEST */
Simon Cooksey 0:fb7af294d5d9 1060
Simon Cooksey 0:fb7af294d5d9 1061 #endif /* MBEDTLS_DES_C */