Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbedtls/source/des.c@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 11:cada08fc8a70 1 /*
mbedAustin 11:cada08fc8a70 2 * FIPS-46-3 compliant Triple-DES implementation
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
mbedAustin 11:cada08fc8a70 5 * SPDX-License-Identifier: Apache-2.0
mbedAustin 11:cada08fc8a70 6 *
mbedAustin 11:cada08fc8a70 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
mbedAustin 11:cada08fc8a70 8 * not use this file except in compliance with the License.
mbedAustin 11:cada08fc8a70 9 * You may obtain a copy of the License at
mbedAustin 11:cada08fc8a70 10 *
mbedAustin 11:cada08fc8a70 11 * http://www.apache.org/licenses/LICENSE-2.0
mbedAustin 11:cada08fc8a70 12 *
mbedAustin 11:cada08fc8a70 13 * Unless required by applicable law or agreed to in writing, software
mbedAustin 11:cada08fc8a70 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
mbedAustin 11:cada08fc8a70 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbedAustin 11:cada08fc8a70 16 * See the License for the specific language governing permissions and
mbedAustin 11:cada08fc8a70 17 * limitations under the License.
mbedAustin 11:cada08fc8a70 18 *
mbedAustin 11:cada08fc8a70 19 * This file is part of mbed TLS (https://tls.mbed.org)
mbedAustin 11:cada08fc8a70 20 */
mbedAustin 11:cada08fc8a70 21 /*
mbedAustin 11:cada08fc8a70 22 * DES, on which TDES is based, was originally designed by Horst Feistel
mbedAustin 11:cada08fc8a70 23 * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
mbedAustin 11:cada08fc8a70 24 *
mbedAustin 11:cada08fc8a70 25 * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
mbedAustin 11:cada08fc8a70 26 */
mbedAustin 11:cada08fc8a70 27
mbedAustin 11:cada08fc8a70 28 #if !defined(MBEDTLS_CONFIG_FILE)
mbedAustin 11:cada08fc8a70 29 #include "mbedtls/config.h"
mbedAustin 11:cada08fc8a70 30 #else
mbedAustin 11:cada08fc8a70 31 #include MBEDTLS_CONFIG_FILE
mbedAustin 11:cada08fc8a70 32 #endif
mbedAustin 11:cada08fc8a70 33
mbedAustin 11:cada08fc8a70 34 #if defined(MBEDTLS_DES_C)
mbedAustin 11:cada08fc8a70 35
mbedAustin 11:cada08fc8a70 36 #include "mbedtls/des.h"
mbedAustin 11:cada08fc8a70 37
mbedAustin 11:cada08fc8a70 38 #include <string.h>
mbedAustin 11:cada08fc8a70 39
mbedAustin 11:cada08fc8a70 40 #if defined(MBEDTLS_SELF_TEST)
mbedAustin 11:cada08fc8a70 41 #if defined(MBEDTLS_PLATFORM_C)
mbedAustin 11:cada08fc8a70 42 #include "mbedtls/platform.h"
mbedAustin 11:cada08fc8a70 43 #else
mbedAustin 11:cada08fc8a70 44 #include <stdio.h>
mbedAustin 11:cada08fc8a70 45 #define mbedtls_printf printf
mbedAustin 11:cada08fc8a70 46 #endif /* MBEDTLS_PLATFORM_C */
mbedAustin 11:cada08fc8a70 47 #endif /* MBEDTLS_SELF_TEST */
mbedAustin 11:cada08fc8a70 48
mbedAustin 11:cada08fc8a70 49 #if !defined(MBEDTLS_DES_ALT)
mbedAustin 11:cada08fc8a70 50
mbedAustin 11:cada08fc8a70 51 /* Implementation that should never be optimized out by the compiler */
mbedAustin 11:cada08fc8a70 52 static void mbedtls_zeroize( void *v, size_t n ) {
mbedAustin 11:cada08fc8a70 53 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
mbedAustin 11:cada08fc8a70 54 }
mbedAustin 11:cada08fc8a70 55
mbedAustin 11:cada08fc8a70 56 /*
mbedAustin 11:cada08fc8a70 57 * 32-bit integer manipulation macros (big endian)
mbedAustin 11:cada08fc8a70 58 */
mbedAustin 11:cada08fc8a70 59 #ifndef GET_UINT32_BE
mbedAustin 11:cada08fc8a70 60 #define GET_UINT32_BE(n,b,i) \
mbedAustin 11:cada08fc8a70 61 { \
mbedAustin 11:cada08fc8a70 62 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
mbedAustin 11:cada08fc8a70 63 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
mbedAustin 11:cada08fc8a70 64 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
mbedAustin 11:cada08fc8a70 65 | ( (uint32_t) (b)[(i) + 3] ); \
mbedAustin 11:cada08fc8a70 66 }
mbedAustin 11:cada08fc8a70 67 #endif
mbedAustin 11:cada08fc8a70 68
mbedAustin 11:cada08fc8a70 69 #ifndef PUT_UINT32_BE
mbedAustin 11:cada08fc8a70 70 #define PUT_UINT32_BE(n,b,i) \
mbedAustin 11:cada08fc8a70 71 { \
mbedAustin 11:cada08fc8a70 72 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
mbedAustin 11:cada08fc8a70 73 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
mbedAustin 11:cada08fc8a70 74 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
mbedAustin 11:cada08fc8a70 75 (b)[(i) + 3] = (unsigned char) ( (n) ); \
mbedAustin 11:cada08fc8a70 76 }
mbedAustin 11:cada08fc8a70 77 #endif
mbedAustin 11:cada08fc8a70 78
mbedAustin 11:cada08fc8a70 79 /*
mbedAustin 11:cada08fc8a70 80 * Expanded DES S-boxes
mbedAustin 11:cada08fc8a70 81 */
mbedAustin 11:cada08fc8a70 82 static const uint32_t SB1[64] =
mbedAustin 11:cada08fc8a70 83 {
mbedAustin 11:cada08fc8a70 84 0x01010400, 0x00000000, 0x00010000, 0x01010404,
mbedAustin 11:cada08fc8a70 85 0x01010004, 0x00010404, 0x00000004, 0x00010000,
mbedAustin 11:cada08fc8a70 86 0x00000400, 0x01010400, 0x01010404, 0x00000400,
mbedAustin 11:cada08fc8a70 87 0x01000404, 0x01010004, 0x01000000, 0x00000004,
mbedAustin 11:cada08fc8a70 88 0x00000404, 0x01000400, 0x01000400, 0x00010400,
mbedAustin 11:cada08fc8a70 89 0x00010400, 0x01010000, 0x01010000, 0x01000404,
mbedAustin 11:cada08fc8a70 90 0x00010004, 0x01000004, 0x01000004, 0x00010004,
mbedAustin 11:cada08fc8a70 91 0x00000000, 0x00000404, 0x00010404, 0x01000000,
mbedAustin 11:cada08fc8a70 92 0x00010000, 0x01010404, 0x00000004, 0x01010000,
mbedAustin 11:cada08fc8a70 93 0x01010400, 0x01000000, 0x01000000, 0x00000400,
mbedAustin 11:cada08fc8a70 94 0x01010004, 0x00010000, 0x00010400, 0x01000004,
mbedAustin 11:cada08fc8a70 95 0x00000400, 0x00000004, 0x01000404, 0x00010404,
mbedAustin 11:cada08fc8a70 96 0x01010404, 0x00010004, 0x01010000, 0x01000404,
mbedAustin 11:cada08fc8a70 97 0x01000004, 0x00000404, 0x00010404, 0x01010400,
mbedAustin 11:cada08fc8a70 98 0x00000404, 0x01000400, 0x01000400, 0x00000000,
mbedAustin 11:cada08fc8a70 99 0x00010004, 0x00010400, 0x00000000, 0x01010004
mbedAustin 11:cada08fc8a70 100 };
mbedAustin 11:cada08fc8a70 101
mbedAustin 11:cada08fc8a70 102 static const uint32_t SB2[64] =
mbedAustin 11:cada08fc8a70 103 {
mbedAustin 11:cada08fc8a70 104 0x80108020, 0x80008000, 0x00008000, 0x00108020,
mbedAustin 11:cada08fc8a70 105 0x00100000, 0x00000020, 0x80100020, 0x80008020,
mbedAustin 11:cada08fc8a70 106 0x80000020, 0x80108020, 0x80108000, 0x80000000,
mbedAustin 11:cada08fc8a70 107 0x80008000, 0x00100000, 0x00000020, 0x80100020,
mbedAustin 11:cada08fc8a70 108 0x00108000, 0x00100020, 0x80008020, 0x00000000,
mbedAustin 11:cada08fc8a70 109 0x80000000, 0x00008000, 0x00108020, 0x80100000,
mbedAustin 11:cada08fc8a70 110 0x00100020, 0x80000020, 0x00000000, 0x00108000,
mbedAustin 11:cada08fc8a70 111 0x00008020, 0x80108000, 0x80100000, 0x00008020,
mbedAustin 11:cada08fc8a70 112 0x00000000, 0x00108020, 0x80100020, 0x00100000,
mbedAustin 11:cada08fc8a70 113 0x80008020, 0x80100000, 0x80108000, 0x00008000,
mbedAustin 11:cada08fc8a70 114 0x80100000, 0x80008000, 0x00000020, 0x80108020,
mbedAustin 11:cada08fc8a70 115 0x00108020, 0x00000020, 0x00008000, 0x80000000,
mbedAustin 11:cada08fc8a70 116 0x00008020, 0x80108000, 0x00100000, 0x80000020,
mbedAustin 11:cada08fc8a70 117 0x00100020, 0x80008020, 0x80000020, 0x00100020,
mbedAustin 11:cada08fc8a70 118 0x00108000, 0x00000000, 0x80008000, 0x00008020,
mbedAustin 11:cada08fc8a70 119 0x80000000, 0x80100020, 0x80108020, 0x00108000
mbedAustin 11:cada08fc8a70 120 };
mbedAustin 11:cada08fc8a70 121
mbedAustin 11:cada08fc8a70 122 static const uint32_t SB3[64] =
mbedAustin 11:cada08fc8a70 123 {
mbedAustin 11:cada08fc8a70 124 0x00000208, 0x08020200, 0x00000000, 0x08020008,
mbedAustin 11:cada08fc8a70 125 0x08000200, 0x00000000, 0x00020208, 0x08000200,
mbedAustin 11:cada08fc8a70 126 0x00020008, 0x08000008, 0x08000008, 0x00020000,
mbedAustin 11:cada08fc8a70 127 0x08020208, 0x00020008, 0x08020000, 0x00000208,
mbedAustin 11:cada08fc8a70 128 0x08000000, 0x00000008, 0x08020200, 0x00000200,
mbedAustin 11:cada08fc8a70 129 0x00020200, 0x08020000, 0x08020008, 0x00020208,
mbedAustin 11:cada08fc8a70 130 0x08000208, 0x00020200, 0x00020000, 0x08000208,
mbedAustin 11:cada08fc8a70 131 0x00000008, 0x08020208, 0x00000200, 0x08000000,
mbedAustin 11:cada08fc8a70 132 0x08020200, 0x08000000, 0x00020008, 0x00000208,
mbedAustin 11:cada08fc8a70 133 0x00020000, 0x08020200, 0x08000200, 0x00000000,
mbedAustin 11:cada08fc8a70 134 0x00000200, 0x00020008, 0x08020208, 0x08000200,
mbedAustin 11:cada08fc8a70 135 0x08000008, 0x00000200, 0x00000000, 0x08020008,
mbedAustin 11:cada08fc8a70 136 0x08000208, 0x00020000, 0x08000000, 0x08020208,
mbedAustin 11:cada08fc8a70 137 0x00000008, 0x00020208, 0x00020200, 0x08000008,
mbedAustin 11:cada08fc8a70 138 0x08020000, 0x08000208, 0x00000208, 0x08020000,
mbedAustin 11:cada08fc8a70 139 0x00020208, 0x00000008, 0x08020008, 0x00020200
mbedAustin 11:cada08fc8a70 140 };
mbedAustin 11:cada08fc8a70 141
mbedAustin 11:cada08fc8a70 142 static const uint32_t SB4[64] =
mbedAustin 11:cada08fc8a70 143 {
mbedAustin 11:cada08fc8a70 144 0x00802001, 0x00002081, 0x00002081, 0x00000080,
mbedAustin 11:cada08fc8a70 145 0x00802080, 0x00800081, 0x00800001, 0x00002001,
mbedAustin 11:cada08fc8a70 146 0x00000000, 0x00802000, 0x00802000, 0x00802081,
mbedAustin 11:cada08fc8a70 147 0x00000081, 0x00000000, 0x00800080, 0x00800001,
mbedAustin 11:cada08fc8a70 148 0x00000001, 0x00002000, 0x00800000, 0x00802001,
mbedAustin 11:cada08fc8a70 149 0x00000080, 0x00800000, 0x00002001, 0x00002080,
mbedAustin 11:cada08fc8a70 150 0x00800081, 0x00000001, 0x00002080, 0x00800080,
mbedAustin 11:cada08fc8a70 151 0x00002000, 0x00802080, 0x00802081, 0x00000081,
mbedAustin 11:cada08fc8a70 152 0x00800080, 0x00800001, 0x00802000, 0x00802081,
mbedAustin 11:cada08fc8a70 153 0x00000081, 0x00000000, 0x00000000, 0x00802000,
mbedAustin 11:cada08fc8a70 154 0x00002080, 0x00800080, 0x00800081, 0x00000001,
mbedAustin 11:cada08fc8a70 155 0x00802001, 0x00002081, 0x00002081, 0x00000080,
mbedAustin 11:cada08fc8a70 156 0x00802081, 0x00000081, 0x00000001, 0x00002000,
mbedAustin 11:cada08fc8a70 157 0x00800001, 0x00002001, 0x00802080, 0x00800081,
mbedAustin 11:cada08fc8a70 158 0x00002001, 0x00002080, 0x00800000, 0x00802001,
mbedAustin 11:cada08fc8a70 159 0x00000080, 0x00800000, 0x00002000, 0x00802080
mbedAustin 11:cada08fc8a70 160 };
mbedAustin 11:cada08fc8a70 161
mbedAustin 11:cada08fc8a70 162 static const uint32_t SB5[64] =
mbedAustin 11:cada08fc8a70 163 {
mbedAustin 11:cada08fc8a70 164 0x00000100, 0x02080100, 0x02080000, 0x42000100,
mbedAustin 11:cada08fc8a70 165 0x00080000, 0x00000100, 0x40000000, 0x02080000,
mbedAustin 11:cada08fc8a70 166 0x40080100, 0x00080000, 0x02000100, 0x40080100,
mbedAustin 11:cada08fc8a70 167 0x42000100, 0x42080000, 0x00080100, 0x40000000,
mbedAustin 11:cada08fc8a70 168 0x02000000, 0x40080000, 0x40080000, 0x00000000,
mbedAustin 11:cada08fc8a70 169 0x40000100, 0x42080100, 0x42080100, 0x02000100,
mbedAustin 11:cada08fc8a70 170 0x42080000, 0x40000100, 0x00000000, 0x42000000,
mbedAustin 11:cada08fc8a70 171 0x02080100, 0x02000000, 0x42000000, 0x00080100,
mbedAustin 11:cada08fc8a70 172 0x00080000, 0x42000100, 0x00000100, 0x02000000,
mbedAustin 11:cada08fc8a70 173 0x40000000, 0x02080000, 0x42000100, 0x40080100,
mbedAustin 11:cada08fc8a70 174 0x02000100, 0x40000000, 0x42080000, 0x02080100,
mbedAustin 11:cada08fc8a70 175 0x40080100, 0x00000100, 0x02000000, 0x42080000,
mbedAustin 11:cada08fc8a70 176 0x42080100, 0x00080100, 0x42000000, 0x42080100,
mbedAustin 11:cada08fc8a70 177 0x02080000, 0x00000000, 0x40080000, 0x42000000,
mbedAustin 11:cada08fc8a70 178 0x00080100, 0x02000100, 0x40000100, 0x00080000,
mbedAustin 11:cada08fc8a70 179 0x00000000, 0x40080000, 0x02080100, 0x40000100
mbedAustin 11:cada08fc8a70 180 };
mbedAustin 11:cada08fc8a70 181
mbedAustin 11:cada08fc8a70 182 static const uint32_t SB6[64] =
mbedAustin 11:cada08fc8a70 183 {
mbedAustin 11:cada08fc8a70 184 0x20000010, 0x20400000, 0x00004000, 0x20404010,
mbedAustin 11:cada08fc8a70 185 0x20400000, 0x00000010, 0x20404010, 0x00400000,
mbedAustin 11:cada08fc8a70 186 0x20004000, 0x00404010, 0x00400000, 0x20000010,
mbedAustin 11:cada08fc8a70 187 0x00400010, 0x20004000, 0x20000000, 0x00004010,
mbedAustin 11:cada08fc8a70 188 0x00000000, 0x00400010, 0x20004010, 0x00004000,
mbedAustin 11:cada08fc8a70 189 0x00404000, 0x20004010, 0x00000010, 0x20400010,
mbedAustin 11:cada08fc8a70 190 0x20400010, 0x00000000, 0x00404010, 0x20404000,
mbedAustin 11:cada08fc8a70 191 0x00004010, 0x00404000, 0x20404000, 0x20000000,
mbedAustin 11:cada08fc8a70 192 0x20004000, 0x00000010, 0x20400010, 0x00404000,
mbedAustin 11:cada08fc8a70 193 0x20404010, 0x00400000, 0x00004010, 0x20000010,
mbedAustin 11:cada08fc8a70 194 0x00400000, 0x20004000, 0x20000000, 0x00004010,
mbedAustin 11:cada08fc8a70 195 0x20000010, 0x20404010, 0x00404000, 0x20400000,
mbedAustin 11:cada08fc8a70 196 0x00404010, 0x20404000, 0x00000000, 0x20400010,
mbedAustin 11:cada08fc8a70 197 0x00000010, 0x00004000, 0x20400000, 0x00404010,
mbedAustin 11:cada08fc8a70 198 0x00004000, 0x00400010, 0x20004010, 0x00000000,
mbedAustin 11:cada08fc8a70 199 0x20404000, 0x20000000, 0x00400010, 0x20004010
mbedAustin 11:cada08fc8a70 200 };
mbedAustin 11:cada08fc8a70 201
mbedAustin 11:cada08fc8a70 202 static const uint32_t SB7[64] =
mbedAustin 11:cada08fc8a70 203 {
mbedAustin 11:cada08fc8a70 204 0x00200000, 0x04200002, 0x04000802, 0x00000000,
mbedAustin 11:cada08fc8a70 205 0x00000800, 0x04000802, 0x00200802, 0x04200800,
mbedAustin 11:cada08fc8a70 206 0x04200802, 0x00200000, 0x00000000, 0x04000002,
mbedAustin 11:cada08fc8a70 207 0x00000002, 0x04000000, 0x04200002, 0x00000802,
mbedAustin 11:cada08fc8a70 208 0x04000800, 0x00200802, 0x00200002, 0x04000800,
mbedAustin 11:cada08fc8a70 209 0x04000002, 0x04200000, 0x04200800, 0x00200002,
mbedAustin 11:cada08fc8a70 210 0x04200000, 0x00000800, 0x00000802, 0x04200802,
mbedAustin 11:cada08fc8a70 211 0x00200800, 0x00000002, 0x04000000, 0x00200800,
mbedAustin 11:cada08fc8a70 212 0x04000000, 0x00200800, 0x00200000, 0x04000802,
mbedAustin 11:cada08fc8a70 213 0x04000802, 0x04200002, 0x04200002, 0x00000002,
mbedAustin 11:cada08fc8a70 214 0x00200002, 0x04000000, 0x04000800, 0x00200000,
mbedAustin 11:cada08fc8a70 215 0x04200800, 0x00000802, 0x00200802, 0x04200800,
mbedAustin 11:cada08fc8a70 216 0x00000802, 0x04000002, 0x04200802, 0x04200000,
mbedAustin 11:cada08fc8a70 217 0x00200800, 0x00000000, 0x00000002, 0x04200802,
mbedAustin 11:cada08fc8a70 218 0x00000000, 0x00200802, 0x04200000, 0x00000800,
mbedAustin 11:cada08fc8a70 219 0x04000002, 0x04000800, 0x00000800, 0x00200002
mbedAustin 11:cada08fc8a70 220 };
mbedAustin 11:cada08fc8a70 221
mbedAustin 11:cada08fc8a70 222 static const uint32_t SB8[64] =
mbedAustin 11:cada08fc8a70 223 {
mbedAustin 11:cada08fc8a70 224 0x10001040, 0x00001000, 0x00040000, 0x10041040,
mbedAustin 11:cada08fc8a70 225 0x10000000, 0x10001040, 0x00000040, 0x10000000,
mbedAustin 11:cada08fc8a70 226 0x00040040, 0x10040000, 0x10041040, 0x00041000,
mbedAustin 11:cada08fc8a70 227 0x10041000, 0x00041040, 0x00001000, 0x00000040,
mbedAustin 11:cada08fc8a70 228 0x10040000, 0x10000040, 0x10001000, 0x00001040,
mbedAustin 11:cada08fc8a70 229 0x00041000, 0x00040040, 0x10040040, 0x10041000,
mbedAustin 11:cada08fc8a70 230 0x00001040, 0x00000000, 0x00000000, 0x10040040,
mbedAustin 11:cada08fc8a70 231 0x10000040, 0x10001000, 0x00041040, 0x00040000,
mbedAustin 11:cada08fc8a70 232 0x00041040, 0x00040000, 0x10041000, 0x00001000,
mbedAustin 11:cada08fc8a70 233 0x00000040, 0x10040040, 0x00001000, 0x00041040,
mbedAustin 11:cada08fc8a70 234 0x10001000, 0x00000040, 0x10000040, 0x10040000,
mbedAustin 11:cada08fc8a70 235 0x10040040, 0x10000000, 0x00040000, 0x10001040,
mbedAustin 11:cada08fc8a70 236 0x00000000, 0x10041040, 0x00040040, 0x10000040,
mbedAustin 11:cada08fc8a70 237 0x10040000, 0x10001000, 0x10001040, 0x00000000,
mbedAustin 11:cada08fc8a70 238 0x10041040, 0x00041000, 0x00041000, 0x00001040,
mbedAustin 11:cada08fc8a70 239 0x00001040, 0x00040040, 0x10000000, 0x10041000
mbedAustin 11:cada08fc8a70 240 };
mbedAustin 11:cada08fc8a70 241
mbedAustin 11:cada08fc8a70 242 /*
mbedAustin 11:cada08fc8a70 243 * PC1: left and right halves bit-swap
mbedAustin 11:cada08fc8a70 244 */
mbedAustin 11:cada08fc8a70 245 static const uint32_t LHs[16] =
mbedAustin 11:cada08fc8a70 246 {
mbedAustin 11:cada08fc8a70 247 0x00000000, 0x00000001, 0x00000100, 0x00000101,
mbedAustin 11:cada08fc8a70 248 0x00010000, 0x00010001, 0x00010100, 0x00010101,
mbedAustin 11:cada08fc8a70 249 0x01000000, 0x01000001, 0x01000100, 0x01000101,
mbedAustin 11:cada08fc8a70 250 0x01010000, 0x01010001, 0x01010100, 0x01010101
mbedAustin 11:cada08fc8a70 251 };
mbedAustin 11:cada08fc8a70 252
mbedAustin 11:cada08fc8a70 253 static const uint32_t RHs[16] =
mbedAustin 11:cada08fc8a70 254 {
mbedAustin 11:cada08fc8a70 255 0x00000000, 0x01000000, 0x00010000, 0x01010000,
mbedAustin 11:cada08fc8a70 256 0x00000100, 0x01000100, 0x00010100, 0x01010100,
mbedAustin 11:cada08fc8a70 257 0x00000001, 0x01000001, 0x00010001, 0x01010001,
mbedAustin 11:cada08fc8a70 258 0x00000101, 0x01000101, 0x00010101, 0x01010101,
mbedAustin 11:cada08fc8a70 259 };
mbedAustin 11:cada08fc8a70 260
mbedAustin 11:cada08fc8a70 261 /*
mbedAustin 11:cada08fc8a70 262 * Initial Permutation macro
mbedAustin 11:cada08fc8a70 263 */
mbedAustin 11:cada08fc8a70 264 #define DES_IP(X,Y) \
mbedAustin 11:cada08fc8a70 265 { \
mbedAustin 11:cada08fc8a70 266 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
mbedAustin 11:cada08fc8a70 267 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
mbedAustin 11:cada08fc8a70 268 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
mbedAustin 11:cada08fc8a70 269 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
mbedAustin 11:cada08fc8a70 270 Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
mbedAustin 11:cada08fc8a70 271 T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
mbedAustin 11:cada08fc8a70 272 X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
mbedAustin 11:cada08fc8a70 273 }
mbedAustin 11:cada08fc8a70 274
mbedAustin 11:cada08fc8a70 275 /*
mbedAustin 11:cada08fc8a70 276 * Final Permutation macro
mbedAustin 11:cada08fc8a70 277 */
mbedAustin 11:cada08fc8a70 278 #define DES_FP(X,Y) \
mbedAustin 11:cada08fc8a70 279 { \
mbedAustin 11:cada08fc8a70 280 X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
mbedAustin 11:cada08fc8a70 281 T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
mbedAustin 11:cada08fc8a70 282 Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
mbedAustin 11:cada08fc8a70 283 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
mbedAustin 11:cada08fc8a70 284 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
mbedAustin 11:cada08fc8a70 285 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
mbedAustin 11:cada08fc8a70 286 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
mbedAustin 11:cada08fc8a70 287 }
mbedAustin 11:cada08fc8a70 288
mbedAustin 11:cada08fc8a70 289 /*
mbedAustin 11:cada08fc8a70 290 * DES round macro
mbedAustin 11:cada08fc8a70 291 */
mbedAustin 11:cada08fc8a70 292 #define DES_ROUND(X,Y) \
mbedAustin 11:cada08fc8a70 293 { \
mbedAustin 11:cada08fc8a70 294 T = *SK++ ^ X; \
mbedAustin 11:cada08fc8a70 295 Y ^= SB8[ (T ) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 296 SB6[ (T >> 8) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 297 SB4[ (T >> 16) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 298 SB2[ (T >> 24) & 0x3F ]; \
mbedAustin 11:cada08fc8a70 299 \
mbedAustin 11:cada08fc8a70 300 T = *SK++ ^ ((X << 28) | (X >> 4)); \
mbedAustin 11:cada08fc8a70 301 Y ^= SB7[ (T ) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 302 SB5[ (T >> 8) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 303 SB3[ (T >> 16) & 0x3F ] ^ \
mbedAustin 11:cada08fc8a70 304 SB1[ (T >> 24) & 0x3F ]; \
mbedAustin 11:cada08fc8a70 305 }
mbedAustin 11:cada08fc8a70 306
mbedAustin 11:cada08fc8a70 307 #define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
mbedAustin 11:cada08fc8a70 308
mbedAustin 11:cada08fc8a70 309 void mbedtls_des_init( mbedtls_des_context *ctx )
mbedAustin 11:cada08fc8a70 310 {
mbedAustin 11:cada08fc8a70 311 memset( ctx, 0, sizeof( mbedtls_des_context ) );
mbedAustin 11:cada08fc8a70 312 }
mbedAustin 11:cada08fc8a70 313
mbedAustin 11:cada08fc8a70 314 void mbedtls_des_free( mbedtls_des_context *ctx )
mbedAustin 11:cada08fc8a70 315 {
mbedAustin 11:cada08fc8a70 316 if( ctx == NULL )
mbedAustin 11:cada08fc8a70 317 return;
mbedAustin 11:cada08fc8a70 318
mbedAustin 11:cada08fc8a70 319 mbedtls_zeroize( ctx, sizeof( mbedtls_des_context ) );
mbedAustin 11:cada08fc8a70 320 }
mbedAustin 11:cada08fc8a70 321
mbedAustin 11:cada08fc8a70 322 void mbedtls_des3_init( mbedtls_des3_context *ctx )
mbedAustin 11:cada08fc8a70 323 {
mbedAustin 11:cada08fc8a70 324 memset( ctx, 0, sizeof( mbedtls_des3_context ) );
mbedAustin 11:cada08fc8a70 325 }
mbedAustin 11:cada08fc8a70 326
mbedAustin 11:cada08fc8a70 327 void mbedtls_des3_free( mbedtls_des3_context *ctx )
mbedAustin 11:cada08fc8a70 328 {
mbedAustin 11:cada08fc8a70 329 if( ctx == NULL )
mbedAustin 11:cada08fc8a70 330 return;
mbedAustin 11:cada08fc8a70 331
mbedAustin 11:cada08fc8a70 332 mbedtls_zeroize( ctx, sizeof( mbedtls_des3_context ) );
mbedAustin 11:cada08fc8a70 333 }
mbedAustin 11:cada08fc8a70 334
mbedAustin 11:cada08fc8a70 335 static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
mbedAustin 11:cada08fc8a70 336 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
mbedAustin 11:cada08fc8a70 337 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
mbedAustin 11:cada08fc8a70 338 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
mbedAustin 11:cada08fc8a70 339 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
mbedAustin 11:cada08fc8a70 340 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
mbedAustin 11:cada08fc8a70 341 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
mbedAustin 11:cada08fc8a70 342 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
mbedAustin 11:cada08fc8a70 343 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
mbedAustin 11:cada08fc8a70 344 254 };
mbedAustin 11:cada08fc8a70 345
mbedAustin 11:cada08fc8a70 346 void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 347 {
mbedAustin 11:cada08fc8a70 348 int i;
mbedAustin 11:cada08fc8a70 349
mbedAustin 11:cada08fc8a70 350 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
mbedAustin 11:cada08fc8a70 351 key[i] = odd_parity_table[key[i] / 2];
mbedAustin 11:cada08fc8a70 352 }
mbedAustin 11:cada08fc8a70 353
mbedAustin 11:cada08fc8a70 354 /*
mbedAustin 11:cada08fc8a70 355 * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
mbedAustin 11:cada08fc8a70 356 */
mbedAustin 11:cada08fc8a70 357 int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 358 {
mbedAustin 11:cada08fc8a70 359 int i;
mbedAustin 11:cada08fc8a70 360
mbedAustin 11:cada08fc8a70 361 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
mbedAustin 11:cada08fc8a70 362 if( key[i] != odd_parity_table[key[i] / 2] )
mbedAustin 11:cada08fc8a70 363 return( 1 );
mbedAustin 11:cada08fc8a70 364
mbedAustin 11:cada08fc8a70 365 return( 0 );
mbedAustin 11:cada08fc8a70 366 }
mbedAustin 11:cada08fc8a70 367
mbedAustin 11:cada08fc8a70 368 /*
mbedAustin 11:cada08fc8a70 369 * Table of weak and semi-weak keys
mbedAustin 11:cada08fc8a70 370 *
mbedAustin 11:cada08fc8a70 371 * Source: http://en.wikipedia.org/wiki/Weak_key
mbedAustin 11:cada08fc8a70 372 *
mbedAustin 11:cada08fc8a70 373 * Weak:
mbedAustin 11:cada08fc8a70 374 * Alternating ones + zeros (0x0101010101010101)
mbedAustin 11:cada08fc8a70 375 * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
mbedAustin 11:cada08fc8a70 376 * '0xE0E0E0E0F1F1F1F1'
mbedAustin 11:cada08fc8a70 377 * '0x1F1F1F1F0E0E0E0E'
mbedAustin 11:cada08fc8a70 378 *
mbedAustin 11:cada08fc8a70 379 * Semi-weak:
mbedAustin 11:cada08fc8a70 380 * 0x011F011F010E010E and 0x1F011F010E010E01
mbedAustin 11:cada08fc8a70 381 * 0x01E001E001F101F1 and 0xE001E001F101F101
mbedAustin 11:cada08fc8a70 382 * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
mbedAustin 11:cada08fc8a70 383 * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
mbedAustin 11:cada08fc8a70 384 * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
mbedAustin 11:cada08fc8a70 385 * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
mbedAustin 11:cada08fc8a70 386 *
mbedAustin 11:cada08fc8a70 387 */
mbedAustin 11:cada08fc8a70 388
mbedAustin 11:cada08fc8a70 389 #define WEAK_KEY_COUNT 16
mbedAustin 11:cada08fc8a70 390
mbedAustin 11:cada08fc8a70 391 static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] =
mbedAustin 11:cada08fc8a70 392 {
mbedAustin 11:cada08fc8a70 393 { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
mbedAustin 11:cada08fc8a70 394 { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
mbedAustin 11:cada08fc8a70 395 { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
mbedAustin 11:cada08fc8a70 396 { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
mbedAustin 11:cada08fc8a70 397
mbedAustin 11:cada08fc8a70 398 { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
mbedAustin 11:cada08fc8a70 399 { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
mbedAustin 11:cada08fc8a70 400 { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
mbedAustin 11:cada08fc8a70 401 { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
mbedAustin 11:cada08fc8a70 402 { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
mbedAustin 11:cada08fc8a70 403 { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
mbedAustin 11:cada08fc8a70 404 { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
mbedAustin 11:cada08fc8a70 405 { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
mbedAustin 11:cada08fc8a70 406 { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
mbedAustin 11:cada08fc8a70 407 { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
mbedAustin 11:cada08fc8a70 408 { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
mbedAustin 11:cada08fc8a70 409 { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
mbedAustin 11:cada08fc8a70 410 };
mbedAustin 11:cada08fc8a70 411
mbedAustin 11:cada08fc8a70 412 int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 413 {
mbedAustin 11:cada08fc8a70 414 int i;
mbedAustin 11:cada08fc8a70 415
mbedAustin 11:cada08fc8a70 416 for( i = 0; i < WEAK_KEY_COUNT; i++ )
mbedAustin 11:cada08fc8a70 417 if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 )
mbedAustin 11:cada08fc8a70 418 return( 1 );
mbedAustin 11:cada08fc8a70 419
mbedAustin 11:cada08fc8a70 420 return( 0 );
mbedAustin 11:cada08fc8a70 421 }
mbedAustin 11:cada08fc8a70 422
mbedAustin 11:cada08fc8a70 423 #if !defined(MBEDTLS_DES_SETKEY_ALT)
mbedAustin 11:cada08fc8a70 424 void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 425 {
mbedAustin 11:cada08fc8a70 426 int i;
mbedAustin 11:cada08fc8a70 427 uint32_t X, Y, T;
mbedAustin 11:cada08fc8a70 428
mbedAustin 11:cada08fc8a70 429 GET_UINT32_BE( X, key, 0 );
mbedAustin 11:cada08fc8a70 430 GET_UINT32_BE( Y, key, 4 );
mbedAustin 11:cada08fc8a70 431
mbedAustin 11:cada08fc8a70 432 /*
mbedAustin 11:cada08fc8a70 433 * Permuted Choice 1
mbedAustin 11:cada08fc8a70 434 */
mbedAustin 11:cada08fc8a70 435 T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
mbedAustin 11:cada08fc8a70 436 T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
mbedAustin 11:cada08fc8a70 437
mbedAustin 11:cada08fc8a70 438 X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
mbedAustin 11:cada08fc8a70 439 | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
mbedAustin 11:cada08fc8a70 440 | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
mbedAustin 11:cada08fc8a70 441 | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
mbedAustin 11:cada08fc8a70 442
mbedAustin 11:cada08fc8a70 443 Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
mbedAustin 11:cada08fc8a70 444 | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
mbedAustin 11:cada08fc8a70 445 | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
mbedAustin 11:cada08fc8a70 446 | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
mbedAustin 11:cada08fc8a70 447
mbedAustin 11:cada08fc8a70 448 X &= 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 449 Y &= 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 450
mbedAustin 11:cada08fc8a70 451 /*
mbedAustin 11:cada08fc8a70 452 * calculate subkeys
mbedAustin 11:cada08fc8a70 453 */
mbedAustin 11:cada08fc8a70 454 for( i = 0; i < 16; i++ )
mbedAustin 11:cada08fc8a70 455 {
mbedAustin 11:cada08fc8a70 456 if( i < 2 || i == 8 || i == 15 )
mbedAustin 11:cada08fc8a70 457 {
mbedAustin 11:cada08fc8a70 458 X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 459 Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 460 }
mbedAustin 11:cada08fc8a70 461 else
mbedAustin 11:cada08fc8a70 462 {
mbedAustin 11:cada08fc8a70 463 X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 464 Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
mbedAustin 11:cada08fc8a70 465 }
mbedAustin 11:cada08fc8a70 466
mbedAustin 11:cada08fc8a70 467 *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
mbedAustin 11:cada08fc8a70 468 | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
mbedAustin 11:cada08fc8a70 469 | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
mbedAustin 11:cada08fc8a70 470 | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
mbedAustin 11:cada08fc8a70 471 | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
mbedAustin 11:cada08fc8a70 472 | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
mbedAustin 11:cada08fc8a70 473 | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
mbedAustin 11:cada08fc8a70 474 | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
mbedAustin 11:cada08fc8a70 475 | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
mbedAustin 11:cada08fc8a70 476 | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
mbedAustin 11:cada08fc8a70 477 | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
mbedAustin 11:cada08fc8a70 478
mbedAustin 11:cada08fc8a70 479 *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
mbedAustin 11:cada08fc8a70 480 | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
mbedAustin 11:cada08fc8a70 481 | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
mbedAustin 11:cada08fc8a70 482 | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
mbedAustin 11:cada08fc8a70 483 | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
mbedAustin 11:cada08fc8a70 484 | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
mbedAustin 11:cada08fc8a70 485 | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
mbedAustin 11:cada08fc8a70 486 | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
mbedAustin 11:cada08fc8a70 487 | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
mbedAustin 11:cada08fc8a70 488 | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
mbedAustin 11:cada08fc8a70 489 | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
mbedAustin 11:cada08fc8a70 490 }
mbedAustin 11:cada08fc8a70 491 }
mbedAustin 11:cada08fc8a70 492 #endif /* !MBEDTLS_DES_SETKEY_ALT */
mbedAustin 11:cada08fc8a70 493
mbedAustin 11:cada08fc8a70 494 /*
mbedAustin 11:cada08fc8a70 495 * DES key schedule (56-bit, encryption)
mbedAustin 11:cada08fc8a70 496 */
mbedAustin 11:cada08fc8a70 497 int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 498 {
mbedAustin 11:cada08fc8a70 499 mbedtls_des_setkey( ctx->sk, key );
mbedAustin 11:cada08fc8a70 500
mbedAustin 11:cada08fc8a70 501 return( 0 );
mbedAustin 11:cada08fc8a70 502 }
mbedAustin 11:cada08fc8a70 503
mbedAustin 11:cada08fc8a70 504 /*
mbedAustin 11:cada08fc8a70 505 * DES key schedule (56-bit, decryption)
mbedAustin 11:cada08fc8a70 506 */
mbedAustin 11:cada08fc8a70 507 int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
mbedAustin 11:cada08fc8a70 508 {
mbedAustin 11:cada08fc8a70 509 int i;
mbedAustin 11:cada08fc8a70 510
mbedAustin 11:cada08fc8a70 511 mbedtls_des_setkey( ctx->sk, key );
mbedAustin 11:cada08fc8a70 512
mbedAustin 11:cada08fc8a70 513 for( i = 0; i < 16; i += 2 )
mbedAustin 11:cada08fc8a70 514 {
mbedAustin 11:cada08fc8a70 515 SWAP( ctx->sk[i ], ctx->sk[30 - i] );
mbedAustin 11:cada08fc8a70 516 SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
mbedAustin 11:cada08fc8a70 517 }
mbedAustin 11:cada08fc8a70 518
mbedAustin 11:cada08fc8a70 519 return( 0 );
mbedAustin 11:cada08fc8a70 520 }
mbedAustin 11:cada08fc8a70 521
mbedAustin 11:cada08fc8a70 522 static void des3_set2key( uint32_t esk[96],
mbedAustin 11:cada08fc8a70 523 uint32_t dsk[96],
mbedAustin 11:cada08fc8a70 524 const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] )
mbedAustin 11:cada08fc8a70 525 {
mbedAustin 11:cada08fc8a70 526 int i;
mbedAustin 11:cada08fc8a70 527
mbedAustin 11:cada08fc8a70 528 mbedtls_des_setkey( esk, key );
mbedAustin 11:cada08fc8a70 529 mbedtls_des_setkey( dsk + 32, key + 8 );
mbedAustin 11:cada08fc8a70 530
mbedAustin 11:cada08fc8a70 531 for( i = 0; i < 32; i += 2 )
mbedAustin 11:cada08fc8a70 532 {
mbedAustin 11:cada08fc8a70 533 dsk[i ] = esk[30 - i];
mbedAustin 11:cada08fc8a70 534 dsk[i + 1] = esk[31 - i];
mbedAustin 11:cada08fc8a70 535
mbedAustin 11:cada08fc8a70 536 esk[i + 32] = dsk[62 - i];
mbedAustin 11:cada08fc8a70 537 esk[i + 33] = dsk[63 - i];
mbedAustin 11:cada08fc8a70 538
mbedAustin 11:cada08fc8a70 539 esk[i + 64] = esk[i ];
mbedAustin 11:cada08fc8a70 540 esk[i + 65] = esk[i + 1];
mbedAustin 11:cada08fc8a70 541
mbedAustin 11:cada08fc8a70 542 dsk[i + 64] = dsk[i ];
mbedAustin 11:cada08fc8a70 543 dsk[i + 65] = dsk[i + 1];
mbedAustin 11:cada08fc8a70 544 }
mbedAustin 11:cada08fc8a70 545 }
mbedAustin 11:cada08fc8a70 546
mbedAustin 11:cada08fc8a70 547 /*
mbedAustin 11:cada08fc8a70 548 * Triple-DES key schedule (112-bit, encryption)
mbedAustin 11:cada08fc8a70 549 */
mbedAustin 11:cada08fc8a70 550 int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 551 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
mbedAustin 11:cada08fc8a70 552 {
mbedAustin 11:cada08fc8a70 553 uint32_t sk[96];
mbedAustin 11:cada08fc8a70 554
mbedAustin 11:cada08fc8a70 555 des3_set2key( ctx->sk, sk, key );
mbedAustin 11:cada08fc8a70 556 mbedtls_zeroize( sk, sizeof( sk ) );
mbedAustin 11:cada08fc8a70 557
mbedAustin 11:cada08fc8a70 558 return( 0 );
mbedAustin 11:cada08fc8a70 559 }
mbedAustin 11:cada08fc8a70 560
mbedAustin 11:cada08fc8a70 561 /*
mbedAustin 11:cada08fc8a70 562 * Triple-DES key schedule (112-bit, decryption)
mbedAustin 11:cada08fc8a70 563 */
mbedAustin 11:cada08fc8a70 564 int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 565 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
mbedAustin 11:cada08fc8a70 566 {
mbedAustin 11:cada08fc8a70 567 uint32_t sk[96];
mbedAustin 11:cada08fc8a70 568
mbedAustin 11:cada08fc8a70 569 des3_set2key( sk, ctx->sk, key );
mbedAustin 11:cada08fc8a70 570 mbedtls_zeroize( sk, sizeof( sk ) );
mbedAustin 11:cada08fc8a70 571
mbedAustin 11:cada08fc8a70 572 return( 0 );
mbedAustin 11:cada08fc8a70 573 }
mbedAustin 11:cada08fc8a70 574
mbedAustin 11:cada08fc8a70 575 static void des3_set3key( uint32_t esk[96],
mbedAustin 11:cada08fc8a70 576 uint32_t dsk[96],
mbedAustin 11:cada08fc8a70 577 const unsigned char key[24] )
mbedAustin 11:cada08fc8a70 578 {
mbedAustin 11:cada08fc8a70 579 int i;
mbedAustin 11:cada08fc8a70 580
mbedAustin 11:cada08fc8a70 581 mbedtls_des_setkey( esk, key );
mbedAustin 11:cada08fc8a70 582 mbedtls_des_setkey( dsk + 32, key + 8 );
mbedAustin 11:cada08fc8a70 583 mbedtls_des_setkey( esk + 64, key + 16 );
mbedAustin 11:cada08fc8a70 584
mbedAustin 11:cada08fc8a70 585 for( i = 0; i < 32; i += 2 )
mbedAustin 11:cada08fc8a70 586 {
mbedAustin 11:cada08fc8a70 587 dsk[i ] = esk[94 - i];
mbedAustin 11:cada08fc8a70 588 dsk[i + 1] = esk[95 - i];
mbedAustin 11:cada08fc8a70 589
mbedAustin 11:cada08fc8a70 590 esk[i + 32] = dsk[62 - i];
mbedAustin 11:cada08fc8a70 591 esk[i + 33] = dsk[63 - i];
mbedAustin 11:cada08fc8a70 592
mbedAustin 11:cada08fc8a70 593 dsk[i + 64] = esk[30 - i];
mbedAustin 11:cada08fc8a70 594 dsk[i + 65] = esk[31 - i];
mbedAustin 11:cada08fc8a70 595 }
mbedAustin 11:cada08fc8a70 596 }
mbedAustin 11:cada08fc8a70 597
mbedAustin 11:cada08fc8a70 598 /*
mbedAustin 11:cada08fc8a70 599 * Triple-DES key schedule (168-bit, encryption)
mbedAustin 11:cada08fc8a70 600 */
mbedAustin 11:cada08fc8a70 601 int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 602 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
mbedAustin 11:cada08fc8a70 603 {
mbedAustin 11:cada08fc8a70 604 uint32_t sk[96];
mbedAustin 11:cada08fc8a70 605
mbedAustin 11:cada08fc8a70 606 des3_set3key( ctx->sk, sk, key );
mbedAustin 11:cada08fc8a70 607 mbedtls_zeroize( sk, sizeof( sk ) );
mbedAustin 11:cada08fc8a70 608
mbedAustin 11:cada08fc8a70 609 return( 0 );
mbedAustin 11:cada08fc8a70 610 }
mbedAustin 11:cada08fc8a70 611
mbedAustin 11:cada08fc8a70 612 /*
mbedAustin 11:cada08fc8a70 613 * Triple-DES key schedule (168-bit, decryption)
mbedAustin 11:cada08fc8a70 614 */
mbedAustin 11:cada08fc8a70 615 int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 616 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
mbedAustin 11:cada08fc8a70 617 {
mbedAustin 11:cada08fc8a70 618 uint32_t sk[96];
mbedAustin 11:cada08fc8a70 619
mbedAustin 11:cada08fc8a70 620 des3_set3key( sk, ctx->sk, key );
mbedAustin 11:cada08fc8a70 621 mbedtls_zeroize( sk, sizeof( sk ) );
mbedAustin 11:cada08fc8a70 622
mbedAustin 11:cada08fc8a70 623 return( 0 );
mbedAustin 11:cada08fc8a70 624 }
mbedAustin 11:cada08fc8a70 625
mbedAustin 11:cada08fc8a70 626 /*
mbedAustin 11:cada08fc8a70 627 * DES-ECB block encryption/decryption
mbedAustin 11:cada08fc8a70 628 */
mbedAustin 11:cada08fc8a70 629 #if !defined(MBEDTLS_DES_CRYPT_ECB_ALT)
mbedAustin 11:cada08fc8a70 630 int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
mbedAustin 11:cada08fc8a70 631 const unsigned char input[8],
mbedAustin 11:cada08fc8a70 632 unsigned char output[8] )
mbedAustin 11:cada08fc8a70 633 {
mbedAustin 11:cada08fc8a70 634 int i;
mbedAustin 11:cada08fc8a70 635 uint32_t X, Y, T, *SK;
mbedAustin 11:cada08fc8a70 636
mbedAustin 11:cada08fc8a70 637 SK = ctx->sk;
mbedAustin 11:cada08fc8a70 638
mbedAustin 11:cada08fc8a70 639 GET_UINT32_BE( X, input, 0 );
mbedAustin 11:cada08fc8a70 640 GET_UINT32_BE( Y, input, 4 );
mbedAustin 11:cada08fc8a70 641
mbedAustin 11:cada08fc8a70 642 DES_IP( X, Y );
mbedAustin 11:cada08fc8a70 643
mbedAustin 11:cada08fc8a70 644 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 645 {
mbedAustin 11:cada08fc8a70 646 DES_ROUND( Y, X );
mbedAustin 11:cada08fc8a70 647 DES_ROUND( X, Y );
mbedAustin 11:cada08fc8a70 648 }
mbedAustin 11:cada08fc8a70 649
mbedAustin 11:cada08fc8a70 650 DES_FP( Y, X );
mbedAustin 11:cada08fc8a70 651
mbedAustin 11:cada08fc8a70 652 PUT_UINT32_BE( Y, output, 0 );
mbedAustin 11:cada08fc8a70 653 PUT_UINT32_BE( X, output, 4 );
mbedAustin 11:cada08fc8a70 654
mbedAustin 11:cada08fc8a70 655 return( 0 );
mbedAustin 11:cada08fc8a70 656 }
mbedAustin 11:cada08fc8a70 657 #endif /* !MBEDTLS_DES_CRYPT_ECB_ALT */
mbedAustin 11:cada08fc8a70 658
mbedAustin 11:cada08fc8a70 659 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 660 /*
mbedAustin 11:cada08fc8a70 661 * DES-CBC buffer encryption/decryption
mbedAustin 11:cada08fc8a70 662 */
mbedAustin 11:cada08fc8a70 663 int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
mbedAustin 11:cada08fc8a70 664 int mode,
mbedAustin 11:cada08fc8a70 665 size_t length,
mbedAustin 11:cada08fc8a70 666 unsigned char iv[8],
mbedAustin 11:cada08fc8a70 667 const unsigned char *input,
mbedAustin 11:cada08fc8a70 668 unsigned char *output )
mbedAustin 11:cada08fc8a70 669 {
mbedAustin 11:cada08fc8a70 670 int i;
mbedAustin 11:cada08fc8a70 671 unsigned char temp[8];
mbedAustin 11:cada08fc8a70 672
mbedAustin 11:cada08fc8a70 673 if( length % 8 )
mbedAustin 11:cada08fc8a70 674 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
mbedAustin 11:cada08fc8a70 675
mbedAustin 11:cada08fc8a70 676 if( mode == MBEDTLS_DES_ENCRYPT )
mbedAustin 11:cada08fc8a70 677 {
mbedAustin 11:cada08fc8a70 678 while( length > 0 )
mbedAustin 11:cada08fc8a70 679 {
mbedAustin 11:cada08fc8a70 680 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 681 output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedAustin 11:cada08fc8a70 682
mbedAustin 11:cada08fc8a70 683 mbedtls_des_crypt_ecb( ctx, output, output );
mbedAustin 11:cada08fc8a70 684 memcpy( iv, output, 8 );
mbedAustin 11:cada08fc8a70 685
mbedAustin 11:cada08fc8a70 686 input += 8;
mbedAustin 11:cada08fc8a70 687 output += 8;
mbedAustin 11:cada08fc8a70 688 length -= 8;
mbedAustin 11:cada08fc8a70 689 }
mbedAustin 11:cada08fc8a70 690 }
mbedAustin 11:cada08fc8a70 691 else /* MBEDTLS_DES_DECRYPT */
mbedAustin 11:cada08fc8a70 692 {
mbedAustin 11:cada08fc8a70 693 while( length > 0 )
mbedAustin 11:cada08fc8a70 694 {
mbedAustin 11:cada08fc8a70 695 memcpy( temp, input, 8 );
mbedAustin 11:cada08fc8a70 696 mbedtls_des_crypt_ecb( ctx, input, output );
mbedAustin 11:cada08fc8a70 697
mbedAustin 11:cada08fc8a70 698 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 699 output[i] = (unsigned char)( output[i] ^ iv[i] );
mbedAustin 11:cada08fc8a70 700
mbedAustin 11:cada08fc8a70 701 memcpy( iv, temp, 8 );
mbedAustin 11:cada08fc8a70 702
mbedAustin 11:cada08fc8a70 703 input += 8;
mbedAustin 11:cada08fc8a70 704 output += 8;
mbedAustin 11:cada08fc8a70 705 length -= 8;
mbedAustin 11:cada08fc8a70 706 }
mbedAustin 11:cada08fc8a70 707 }
mbedAustin 11:cada08fc8a70 708
mbedAustin 11:cada08fc8a70 709 return( 0 );
mbedAustin 11:cada08fc8a70 710 }
mbedAustin 11:cada08fc8a70 711 #endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedAustin 11:cada08fc8a70 712
mbedAustin 11:cada08fc8a70 713 /*
mbedAustin 11:cada08fc8a70 714 * 3DES-ECB block encryption/decryption
mbedAustin 11:cada08fc8a70 715 */
mbedAustin 11:cada08fc8a70 716 #if !defined(MBEDTLS_DES3_CRYPT_ECB_ALT)
mbedAustin 11:cada08fc8a70 717 int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 718 const unsigned char input[8],
mbedAustin 11:cada08fc8a70 719 unsigned char output[8] )
mbedAustin 11:cada08fc8a70 720 {
mbedAustin 11:cada08fc8a70 721 int i;
mbedAustin 11:cada08fc8a70 722 uint32_t X, Y, T, *SK;
mbedAustin 11:cada08fc8a70 723
mbedAustin 11:cada08fc8a70 724 SK = ctx->sk;
mbedAustin 11:cada08fc8a70 725
mbedAustin 11:cada08fc8a70 726 GET_UINT32_BE( X, input, 0 );
mbedAustin 11:cada08fc8a70 727 GET_UINT32_BE( Y, input, 4 );
mbedAustin 11:cada08fc8a70 728
mbedAustin 11:cada08fc8a70 729 DES_IP( X, Y );
mbedAustin 11:cada08fc8a70 730
mbedAustin 11:cada08fc8a70 731 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 732 {
mbedAustin 11:cada08fc8a70 733 DES_ROUND( Y, X );
mbedAustin 11:cada08fc8a70 734 DES_ROUND( X, Y );
mbedAustin 11:cada08fc8a70 735 }
mbedAustin 11:cada08fc8a70 736
mbedAustin 11:cada08fc8a70 737 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 738 {
mbedAustin 11:cada08fc8a70 739 DES_ROUND( X, Y );
mbedAustin 11:cada08fc8a70 740 DES_ROUND( Y, X );
mbedAustin 11:cada08fc8a70 741 }
mbedAustin 11:cada08fc8a70 742
mbedAustin 11:cada08fc8a70 743 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 744 {
mbedAustin 11:cada08fc8a70 745 DES_ROUND( Y, X );
mbedAustin 11:cada08fc8a70 746 DES_ROUND( X, Y );
mbedAustin 11:cada08fc8a70 747 }
mbedAustin 11:cada08fc8a70 748
mbedAustin 11:cada08fc8a70 749 DES_FP( Y, X );
mbedAustin 11:cada08fc8a70 750
mbedAustin 11:cada08fc8a70 751 PUT_UINT32_BE( Y, output, 0 );
mbedAustin 11:cada08fc8a70 752 PUT_UINT32_BE( X, output, 4 );
mbedAustin 11:cada08fc8a70 753
mbedAustin 11:cada08fc8a70 754 return( 0 );
mbedAustin 11:cada08fc8a70 755 }
mbedAustin 11:cada08fc8a70 756 #endif /* !MBEDTLS_DES3_CRYPT_ECB_ALT */
mbedAustin 11:cada08fc8a70 757
mbedAustin 11:cada08fc8a70 758 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 759 /*
mbedAustin 11:cada08fc8a70 760 * 3DES-CBC buffer encryption/decryption
mbedAustin 11:cada08fc8a70 761 */
mbedAustin 11:cada08fc8a70 762 int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
mbedAustin 11:cada08fc8a70 763 int mode,
mbedAustin 11:cada08fc8a70 764 size_t length,
mbedAustin 11:cada08fc8a70 765 unsigned char iv[8],
mbedAustin 11:cada08fc8a70 766 const unsigned char *input,
mbedAustin 11:cada08fc8a70 767 unsigned char *output )
mbedAustin 11:cada08fc8a70 768 {
mbedAustin 11:cada08fc8a70 769 int i;
mbedAustin 11:cada08fc8a70 770 unsigned char temp[8];
mbedAustin 11:cada08fc8a70 771
mbedAustin 11:cada08fc8a70 772 if( length % 8 )
mbedAustin 11:cada08fc8a70 773 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
mbedAustin 11:cada08fc8a70 774
mbedAustin 11:cada08fc8a70 775 if( mode == MBEDTLS_DES_ENCRYPT )
mbedAustin 11:cada08fc8a70 776 {
mbedAustin 11:cada08fc8a70 777 while( length > 0 )
mbedAustin 11:cada08fc8a70 778 {
mbedAustin 11:cada08fc8a70 779 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 780 output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedAustin 11:cada08fc8a70 781
mbedAustin 11:cada08fc8a70 782 mbedtls_des3_crypt_ecb( ctx, output, output );
mbedAustin 11:cada08fc8a70 783 memcpy( iv, output, 8 );
mbedAustin 11:cada08fc8a70 784
mbedAustin 11:cada08fc8a70 785 input += 8;
mbedAustin 11:cada08fc8a70 786 output += 8;
mbedAustin 11:cada08fc8a70 787 length -= 8;
mbedAustin 11:cada08fc8a70 788 }
mbedAustin 11:cada08fc8a70 789 }
mbedAustin 11:cada08fc8a70 790 else /* MBEDTLS_DES_DECRYPT */
mbedAustin 11:cada08fc8a70 791 {
mbedAustin 11:cada08fc8a70 792 while( length > 0 )
mbedAustin 11:cada08fc8a70 793 {
mbedAustin 11:cada08fc8a70 794 memcpy( temp, input, 8 );
mbedAustin 11:cada08fc8a70 795 mbedtls_des3_crypt_ecb( ctx, input, output );
mbedAustin 11:cada08fc8a70 796
mbedAustin 11:cada08fc8a70 797 for( i = 0; i < 8; i++ )
mbedAustin 11:cada08fc8a70 798 output[i] = (unsigned char)( output[i] ^ iv[i] );
mbedAustin 11:cada08fc8a70 799
mbedAustin 11:cada08fc8a70 800 memcpy( iv, temp, 8 );
mbedAustin 11:cada08fc8a70 801
mbedAustin 11:cada08fc8a70 802 input += 8;
mbedAustin 11:cada08fc8a70 803 output += 8;
mbedAustin 11:cada08fc8a70 804 length -= 8;
mbedAustin 11:cada08fc8a70 805 }
mbedAustin 11:cada08fc8a70 806 }
mbedAustin 11:cada08fc8a70 807
mbedAustin 11:cada08fc8a70 808 return( 0 );
mbedAustin 11:cada08fc8a70 809 }
mbedAustin 11:cada08fc8a70 810 #endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedAustin 11:cada08fc8a70 811
mbedAustin 11:cada08fc8a70 812 #endif /* !MBEDTLS_DES_ALT */
mbedAustin 11:cada08fc8a70 813
mbedAustin 11:cada08fc8a70 814 #if defined(MBEDTLS_SELF_TEST)
mbedAustin 11:cada08fc8a70 815 /*
mbedAustin 11:cada08fc8a70 816 * DES and 3DES test vectors from:
mbedAustin 11:cada08fc8a70 817 *
mbedAustin 11:cada08fc8a70 818 * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
mbedAustin 11:cada08fc8a70 819 */
mbedAustin 11:cada08fc8a70 820 static const unsigned char des3_test_keys[24] =
mbedAustin 11:cada08fc8a70 821 {
mbedAustin 11:cada08fc8a70 822 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
mbedAustin 11:cada08fc8a70 823 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
mbedAustin 11:cada08fc8a70 824 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
mbedAustin 11:cada08fc8a70 825 };
mbedAustin 11:cada08fc8a70 826
mbedAustin 11:cada08fc8a70 827 static const unsigned char des3_test_buf[8] =
mbedAustin 11:cada08fc8a70 828 {
mbedAustin 11:cada08fc8a70 829 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
mbedAustin 11:cada08fc8a70 830 };
mbedAustin 11:cada08fc8a70 831
mbedAustin 11:cada08fc8a70 832 static const unsigned char des3_test_ecb_dec[3][8] =
mbedAustin 11:cada08fc8a70 833 {
mbedAustin 11:cada08fc8a70 834 { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
mbedAustin 11:cada08fc8a70 835 { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
mbedAustin 11:cada08fc8a70 836 { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
mbedAustin 11:cada08fc8a70 837 };
mbedAustin 11:cada08fc8a70 838
mbedAustin 11:cada08fc8a70 839 static const unsigned char des3_test_ecb_enc[3][8] =
mbedAustin 11:cada08fc8a70 840 {
mbedAustin 11:cada08fc8a70 841 { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
mbedAustin 11:cada08fc8a70 842 { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
mbedAustin 11:cada08fc8a70 843 { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
mbedAustin 11:cada08fc8a70 844 };
mbedAustin 11:cada08fc8a70 845
mbedAustin 11:cada08fc8a70 846 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 847 static const unsigned char des3_test_iv[8] =
mbedAustin 11:cada08fc8a70 848 {
mbedAustin 11:cada08fc8a70 849 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
mbedAustin 11:cada08fc8a70 850 };
mbedAustin 11:cada08fc8a70 851
mbedAustin 11:cada08fc8a70 852 static const unsigned char des3_test_cbc_dec[3][8] =
mbedAustin 11:cada08fc8a70 853 {
mbedAustin 11:cada08fc8a70 854 { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
mbedAustin 11:cada08fc8a70 855 { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
mbedAustin 11:cada08fc8a70 856 { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
mbedAustin 11:cada08fc8a70 857 };
mbedAustin 11:cada08fc8a70 858
mbedAustin 11:cada08fc8a70 859 static const unsigned char des3_test_cbc_enc[3][8] =
mbedAustin 11:cada08fc8a70 860 {
mbedAustin 11:cada08fc8a70 861 { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
mbedAustin 11:cada08fc8a70 862 { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
mbedAustin 11:cada08fc8a70 863 { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
mbedAustin 11:cada08fc8a70 864 };
mbedAustin 11:cada08fc8a70 865 #endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedAustin 11:cada08fc8a70 866
mbedAustin 11:cada08fc8a70 867 /*
mbedAustin 11:cada08fc8a70 868 * Checkup routine
mbedAustin 11:cada08fc8a70 869 */
mbedAustin 11:cada08fc8a70 870 int mbedtls_des_self_test( int verbose )
mbedAustin 11:cada08fc8a70 871 {
mbedAustin 11:cada08fc8a70 872 int i, j, u, v, ret = 0;
mbedAustin 11:cada08fc8a70 873 mbedtls_des_context ctx;
mbedAustin 11:cada08fc8a70 874 mbedtls_des3_context ctx3;
mbedAustin 11:cada08fc8a70 875 unsigned char buf[8];
mbedAustin 11:cada08fc8a70 876 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 877 unsigned char prv[8];
mbedAustin 11:cada08fc8a70 878 unsigned char iv[8];
mbedAustin 11:cada08fc8a70 879 #endif
mbedAustin 11:cada08fc8a70 880
mbedAustin 11:cada08fc8a70 881 mbedtls_des_init( &ctx );
mbedAustin 11:cada08fc8a70 882 mbedtls_des3_init( &ctx3 );
mbedAustin 11:cada08fc8a70 883 /*
mbedAustin 11:cada08fc8a70 884 * ECB mode
mbedAustin 11:cada08fc8a70 885 */
mbedAustin 11:cada08fc8a70 886 for( i = 0; i < 6; i++ )
mbedAustin 11:cada08fc8a70 887 {
mbedAustin 11:cada08fc8a70 888 u = i >> 1;
mbedAustin 11:cada08fc8a70 889 v = i & 1;
mbedAustin 11:cada08fc8a70 890
mbedAustin 11:cada08fc8a70 891 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 892 mbedtls_printf( " DES%c-ECB-%3d (%s): ",
mbedAustin 11:cada08fc8a70 893 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
mbedAustin 11:cada08fc8a70 894 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
mbedAustin 11:cada08fc8a70 895
mbedAustin 11:cada08fc8a70 896 memcpy( buf, des3_test_buf, 8 );
mbedAustin 11:cada08fc8a70 897
mbedAustin 11:cada08fc8a70 898 switch( i )
mbedAustin 11:cada08fc8a70 899 {
mbedAustin 11:cada08fc8a70 900 case 0:
mbedAustin 11:cada08fc8a70 901 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
mbedAustin 11:cada08fc8a70 902 break;
mbedAustin 11:cada08fc8a70 903
mbedAustin 11:cada08fc8a70 904 case 1:
mbedAustin 11:cada08fc8a70 905 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
mbedAustin 11:cada08fc8a70 906 break;
mbedAustin 11:cada08fc8a70 907
mbedAustin 11:cada08fc8a70 908 case 2:
mbedAustin 11:cada08fc8a70 909 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 910 break;
mbedAustin 11:cada08fc8a70 911
mbedAustin 11:cada08fc8a70 912 case 3:
mbedAustin 11:cada08fc8a70 913 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 914 break;
mbedAustin 11:cada08fc8a70 915
mbedAustin 11:cada08fc8a70 916 case 4:
mbedAustin 11:cada08fc8a70 917 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 918 break;
mbedAustin 11:cada08fc8a70 919
mbedAustin 11:cada08fc8a70 920 case 5:
mbedAustin 11:cada08fc8a70 921 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 922 break;
mbedAustin 11:cada08fc8a70 923
mbedAustin 11:cada08fc8a70 924 default:
mbedAustin 11:cada08fc8a70 925 return( 1 );
mbedAustin 11:cada08fc8a70 926 }
mbedAustin 11:cada08fc8a70 927
mbedAustin 11:cada08fc8a70 928 for( j = 0; j < 10000; j++ )
mbedAustin 11:cada08fc8a70 929 {
mbedAustin 11:cada08fc8a70 930 if( u == 0 )
mbedAustin 11:cada08fc8a70 931 mbedtls_des_crypt_ecb( &ctx, buf, buf );
mbedAustin 11:cada08fc8a70 932 else
mbedAustin 11:cada08fc8a70 933 mbedtls_des3_crypt_ecb( &ctx3, buf, buf );
mbedAustin 11:cada08fc8a70 934 }
mbedAustin 11:cada08fc8a70 935
mbedAustin 11:cada08fc8a70 936 if( ( v == MBEDTLS_DES_DECRYPT &&
mbedAustin 11:cada08fc8a70 937 memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
mbedAustin 11:cada08fc8a70 938 ( v != MBEDTLS_DES_DECRYPT &&
mbedAustin 11:cada08fc8a70 939 memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
mbedAustin 11:cada08fc8a70 940 {
mbedAustin 11:cada08fc8a70 941 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 942 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 943
mbedAustin 11:cada08fc8a70 944 ret = 1;
mbedAustin 11:cada08fc8a70 945 goto exit;
mbedAustin 11:cada08fc8a70 946 }
mbedAustin 11:cada08fc8a70 947
mbedAustin 11:cada08fc8a70 948 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 949 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 950 }
mbedAustin 11:cada08fc8a70 951
mbedAustin 11:cada08fc8a70 952 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 953 mbedtls_printf( "\n" );
mbedAustin 11:cada08fc8a70 954
mbedAustin 11:cada08fc8a70 955 #if defined(MBEDTLS_CIPHER_MODE_CBC)
mbedAustin 11:cada08fc8a70 956 /*
mbedAustin 11:cada08fc8a70 957 * CBC mode
mbedAustin 11:cada08fc8a70 958 */
mbedAustin 11:cada08fc8a70 959 for( i = 0; i < 6; i++ )
mbedAustin 11:cada08fc8a70 960 {
mbedAustin 11:cada08fc8a70 961 u = i >> 1;
mbedAustin 11:cada08fc8a70 962 v = i & 1;
mbedAustin 11:cada08fc8a70 963
mbedAustin 11:cada08fc8a70 964 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 965 mbedtls_printf( " DES%c-CBC-%3d (%s): ",
mbedAustin 11:cada08fc8a70 966 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
mbedAustin 11:cada08fc8a70 967 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
mbedAustin 11:cada08fc8a70 968
mbedAustin 11:cada08fc8a70 969 memcpy( iv, des3_test_iv, 8 );
mbedAustin 11:cada08fc8a70 970 memcpy( prv, des3_test_iv, 8 );
mbedAustin 11:cada08fc8a70 971 memcpy( buf, des3_test_buf, 8 );
mbedAustin 11:cada08fc8a70 972
mbedAustin 11:cada08fc8a70 973 switch( i )
mbedAustin 11:cada08fc8a70 974 {
mbedAustin 11:cada08fc8a70 975 case 0:
mbedAustin 11:cada08fc8a70 976 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
mbedAustin 11:cada08fc8a70 977 break;
mbedAustin 11:cada08fc8a70 978
mbedAustin 11:cada08fc8a70 979 case 1:
mbedAustin 11:cada08fc8a70 980 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
mbedAustin 11:cada08fc8a70 981 break;
mbedAustin 11:cada08fc8a70 982
mbedAustin 11:cada08fc8a70 983 case 2:
mbedAustin 11:cada08fc8a70 984 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 985 break;
mbedAustin 11:cada08fc8a70 986
mbedAustin 11:cada08fc8a70 987 case 3:
mbedAustin 11:cada08fc8a70 988 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 989 break;
mbedAustin 11:cada08fc8a70 990
mbedAustin 11:cada08fc8a70 991 case 4:
mbedAustin 11:cada08fc8a70 992 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 993 break;
mbedAustin 11:cada08fc8a70 994
mbedAustin 11:cada08fc8a70 995 case 5:
mbedAustin 11:cada08fc8a70 996 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
mbedAustin 11:cada08fc8a70 997 break;
mbedAustin 11:cada08fc8a70 998
mbedAustin 11:cada08fc8a70 999 default:
mbedAustin 11:cada08fc8a70 1000 return( 1 );
mbedAustin 11:cada08fc8a70 1001 }
mbedAustin 11:cada08fc8a70 1002
mbedAustin 11:cada08fc8a70 1003 if( v == MBEDTLS_DES_DECRYPT )
mbedAustin 11:cada08fc8a70 1004 {
mbedAustin 11:cada08fc8a70 1005 for( j = 0; j < 10000; j++ )
mbedAustin 11:cada08fc8a70 1006 {
mbedAustin 11:cada08fc8a70 1007 if( u == 0 )
mbedAustin 11:cada08fc8a70 1008 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
mbedAustin 11:cada08fc8a70 1009 else
mbedAustin 11:cada08fc8a70 1010 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
mbedAustin 11:cada08fc8a70 1011 }
mbedAustin 11:cada08fc8a70 1012 }
mbedAustin 11:cada08fc8a70 1013 else
mbedAustin 11:cada08fc8a70 1014 {
mbedAustin 11:cada08fc8a70 1015 for( j = 0; j < 10000; j++ )
mbedAustin 11:cada08fc8a70 1016 {
mbedAustin 11:cada08fc8a70 1017 unsigned char tmp[8];
mbedAustin 11:cada08fc8a70 1018
mbedAustin 11:cada08fc8a70 1019 if( u == 0 )
mbedAustin 11:cada08fc8a70 1020 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
mbedAustin 11:cada08fc8a70 1021 else
mbedAustin 11:cada08fc8a70 1022 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
mbedAustin 11:cada08fc8a70 1023
mbedAustin 11:cada08fc8a70 1024 memcpy( tmp, prv, 8 );
mbedAustin 11:cada08fc8a70 1025 memcpy( prv, buf, 8 );
mbedAustin 11:cada08fc8a70 1026 memcpy( buf, tmp, 8 );
mbedAustin 11:cada08fc8a70 1027 }
mbedAustin 11:cada08fc8a70 1028
mbedAustin 11:cada08fc8a70 1029 memcpy( buf, prv, 8 );
mbedAustin 11:cada08fc8a70 1030 }
mbedAustin 11:cada08fc8a70 1031
mbedAustin 11:cada08fc8a70 1032 if( ( v == MBEDTLS_DES_DECRYPT &&
mbedAustin 11:cada08fc8a70 1033 memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
mbedAustin 11:cada08fc8a70 1034 ( v != MBEDTLS_DES_DECRYPT &&
mbedAustin 11:cada08fc8a70 1035 memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
mbedAustin 11:cada08fc8a70 1036 {
mbedAustin 11:cada08fc8a70 1037 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 1038 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 1039
mbedAustin 11:cada08fc8a70 1040 ret = 1;
mbedAustin 11:cada08fc8a70 1041 goto exit;
mbedAustin 11:cada08fc8a70 1042 }
mbedAustin 11:cada08fc8a70 1043
mbedAustin 11:cada08fc8a70 1044 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 1045 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 1046 }
mbedAustin 11:cada08fc8a70 1047 #endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedAustin 11:cada08fc8a70 1048
mbedAustin 11:cada08fc8a70 1049 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 1050 mbedtls_printf( "\n" );
mbedAustin 11:cada08fc8a70 1051
mbedAustin 11:cada08fc8a70 1052 exit:
mbedAustin 11:cada08fc8a70 1053 mbedtls_des_free( &ctx );
mbedAustin 11:cada08fc8a70 1054 mbedtls_des3_free( &ctx3 );
mbedAustin 11:cada08fc8a70 1055
mbedAustin 11:cada08fc8a70 1056 return( ret );
mbedAustin 11:cada08fc8a70 1057 }
mbedAustin 11:cada08fc8a70 1058
mbedAustin 11:cada08fc8a70 1059 #endif /* MBEDTLS_SELF_TEST */
mbedAustin 11:cada08fc8a70 1060
mbedAustin 11:cada08fc8a70 1061 #endif /* MBEDTLS_DES_C */