Nitin Shukla / LED_Demo

nkjnm

Dependencies:   MAX44000 nexpaq_mdk

Fork of LED_Demo by Maxim nexpaq

mbd_os/features/mbedtls/src/des.c@1:55a6170b404f, 2016-09-17 (annotated)

Committer:
nexpaq
Date:
Sat Sep 17 16:32:05 2016 +0000
Revision:
1:55a6170b404f
checking in for sharing

Who changed what in which revision?

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nexpaq 1:55a6170b404f 1 /*
nexpaq 1:55a6170b404f 2 * FIPS-46-3 compliant Triple-DES implementation
nexpaq 1:55a6170b404f 3 *
nexpaq 1:55a6170b404f 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
nexpaq 1:55a6170b404f 5 * SPDX-License-Identifier: Apache-2.0
nexpaq 1:55a6170b404f 6 *
nexpaq 1:55a6170b404f 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
nexpaq 1:55a6170b404f 8 * not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 9 * You may obtain a copy of the License at
nexpaq 1:55a6170b404f 10 *
nexpaq 1:55a6170b404f 11 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 12 *
nexpaq 1:55a6170b404f 13 * Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
nexpaq 1:55a6170b404f 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 16 * See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 17 * limitations under the License.
nexpaq 1:55a6170b404f 18 *
nexpaq 1:55a6170b404f 19 * This file is part of mbed TLS (https://tls.mbed.org)
nexpaq 1:55a6170b404f 20 */
nexpaq 1:55a6170b404f 21 /*
nexpaq 1:55a6170b404f 22 * DES, on which TDES is based, was originally designed by Horst Feistel
nexpaq 1:55a6170b404f 23 * at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
nexpaq 1:55a6170b404f 24 *
nexpaq 1:55a6170b404f 25 * http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
nexpaq 1:55a6170b404f 26 */
nexpaq 1:55a6170b404f 27
nexpaq 1:55a6170b404f 28 #if !defined(MBEDTLS_CONFIG_FILE)
nexpaq 1:55a6170b404f 29 #include "mbedtls/config.h"
nexpaq 1:55a6170b404f 30 #else
nexpaq 1:55a6170b404f 31 #include MBEDTLS_CONFIG_FILE
nexpaq 1:55a6170b404f 32 #endif
nexpaq 1:55a6170b404f 33
nexpaq 1:55a6170b404f 34 #if defined(MBEDTLS_DES_C)
nexpaq 1:55a6170b404f 35
nexpaq 1:55a6170b404f 36 #include "mbedtls/des.h"
nexpaq 1:55a6170b404f 37
nexpaq 1:55a6170b404f 38 #include <string.h>
nexpaq 1:55a6170b404f 39
nexpaq 1:55a6170b404f 40 #if defined(MBEDTLS_SELF_TEST)
nexpaq 1:55a6170b404f 41 #if defined(MBEDTLS_PLATFORM_C)
nexpaq 1:55a6170b404f 42 #include "mbedtls/platform.h"
nexpaq 1:55a6170b404f 43 #else
nexpaq 1:55a6170b404f 44 #include <stdio.h>
nexpaq 1:55a6170b404f 45 #define mbedtls_printf printf
nexpaq 1:55a6170b404f 46 #endif /* MBEDTLS_PLATFORM_C */
nexpaq 1:55a6170b404f 47 #endif /* MBEDTLS_SELF_TEST */
nexpaq 1:55a6170b404f 48
nexpaq 1:55a6170b404f 49 #if !defined(MBEDTLS_DES_ALT)
nexpaq 1:55a6170b404f 50
nexpaq 1:55a6170b404f 51 /* Implementation that should never be optimized out by the compiler */
nexpaq 1:55a6170b404f 52 static void mbedtls_zeroize( void *v, size_t n ) {
nexpaq 1:55a6170b404f 53 volatile unsigned char *p = (unsigned char*)v; while( n-- ) *p++ = 0;
nexpaq 1:55a6170b404f 54 }
nexpaq 1:55a6170b404f 55
nexpaq 1:55a6170b404f 56 /*
nexpaq 1:55a6170b404f 57 * 32-bit integer manipulation macros (big endian)
nexpaq 1:55a6170b404f 58 */
nexpaq 1:55a6170b404f 59 #ifndef GET_UINT32_BE
nexpaq 1:55a6170b404f 60 #define GET_UINT32_BE(n,b,i) \
nexpaq 1:55a6170b404f 61 { \
nexpaq 1:55a6170b404f 62 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
nexpaq 1:55a6170b404f 63 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
nexpaq 1:55a6170b404f 64 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
nexpaq 1:55a6170b404f 65 | ( (uint32_t) (b)[(i) + 3] ); \
nexpaq 1:55a6170b404f 66 }
nexpaq 1:55a6170b404f 67 #endif
nexpaq 1:55a6170b404f 68
nexpaq 1:55a6170b404f 69 #ifndef PUT_UINT32_BE
nexpaq 1:55a6170b404f 70 #define PUT_UINT32_BE(n,b,i) \
nexpaq 1:55a6170b404f 71 { \
nexpaq 1:55a6170b404f 72 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
nexpaq 1:55a6170b404f 73 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
nexpaq 1:55a6170b404f 74 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
nexpaq 1:55a6170b404f 75 (b)[(i) + 3] = (unsigned char) ( (n) ); \
nexpaq 1:55a6170b404f 76 }
nexpaq 1:55a6170b404f 77 #endif
nexpaq 1:55a6170b404f 78
nexpaq 1:55a6170b404f 79 /*
nexpaq 1:55a6170b404f 80 * Expanded DES S-boxes
nexpaq 1:55a6170b404f 81 */
nexpaq 1:55a6170b404f 82 static const uint32_t SB1[64] =
nexpaq 1:55a6170b404f 83 {
nexpaq 1:55a6170b404f 84 0x01010400, 0x00000000, 0x00010000, 0x01010404,
nexpaq 1:55a6170b404f 85 0x01010004, 0x00010404, 0x00000004, 0x00010000,
nexpaq 1:55a6170b404f 86 0x00000400, 0x01010400, 0x01010404, 0x00000400,
nexpaq 1:55a6170b404f 87 0x01000404, 0x01010004, 0x01000000, 0x00000004,
nexpaq 1:55a6170b404f 88 0x00000404, 0x01000400, 0x01000400, 0x00010400,
nexpaq 1:55a6170b404f 89 0x00010400, 0x01010000, 0x01010000, 0x01000404,
nexpaq 1:55a6170b404f 90 0x00010004, 0x01000004, 0x01000004, 0x00010004,
nexpaq 1:55a6170b404f 91 0x00000000, 0x00000404, 0x00010404, 0x01000000,
nexpaq 1:55a6170b404f 92 0x00010000, 0x01010404, 0x00000004, 0x01010000,
nexpaq 1:55a6170b404f 93 0x01010400, 0x01000000, 0x01000000, 0x00000400,
nexpaq 1:55a6170b404f 94 0x01010004, 0x00010000, 0x00010400, 0x01000004,
nexpaq 1:55a6170b404f 95 0x00000400, 0x00000004, 0x01000404, 0x00010404,
nexpaq 1:55a6170b404f 96 0x01010404, 0x00010004, 0x01010000, 0x01000404,
nexpaq 1:55a6170b404f 97 0x01000004, 0x00000404, 0x00010404, 0x01010400,
nexpaq 1:55a6170b404f 98 0x00000404, 0x01000400, 0x01000400, 0x00000000,
nexpaq 1:55a6170b404f 99 0x00010004, 0x00010400, 0x00000000, 0x01010004
nexpaq 1:55a6170b404f 100 };
nexpaq 1:55a6170b404f 101
nexpaq 1:55a6170b404f 102 static const uint32_t SB2[64] =
nexpaq 1:55a6170b404f 103 {
nexpaq 1:55a6170b404f 104 0x80108020, 0x80008000, 0x00008000, 0x00108020,
nexpaq 1:55a6170b404f 105 0x00100000, 0x00000020, 0x80100020, 0x80008020,
nexpaq 1:55a6170b404f 106 0x80000020, 0x80108020, 0x80108000, 0x80000000,
nexpaq 1:55a6170b404f 107 0x80008000, 0x00100000, 0x00000020, 0x80100020,
nexpaq 1:55a6170b404f 108 0x00108000, 0x00100020, 0x80008020, 0x00000000,
nexpaq 1:55a6170b404f 109 0x80000000, 0x00008000, 0x00108020, 0x80100000,
nexpaq 1:55a6170b404f 110 0x00100020, 0x80000020, 0x00000000, 0x00108000,
nexpaq 1:55a6170b404f 111 0x00008020, 0x80108000, 0x80100000, 0x00008020,
nexpaq 1:55a6170b404f 112 0x00000000, 0x00108020, 0x80100020, 0x00100000,
nexpaq 1:55a6170b404f 113 0x80008020, 0x80100000, 0x80108000, 0x00008000,
nexpaq 1:55a6170b404f 114 0x80100000, 0x80008000, 0x00000020, 0x80108020,
nexpaq 1:55a6170b404f 115 0x00108020, 0x00000020, 0x00008000, 0x80000000,
nexpaq 1:55a6170b404f 116 0x00008020, 0x80108000, 0x00100000, 0x80000020,
nexpaq 1:55a6170b404f 117 0x00100020, 0x80008020, 0x80000020, 0x00100020,
nexpaq 1:55a6170b404f 118 0x00108000, 0x00000000, 0x80008000, 0x00008020,
nexpaq 1:55a6170b404f 119 0x80000000, 0x80100020, 0x80108020, 0x00108000
nexpaq 1:55a6170b404f 120 };
nexpaq 1:55a6170b404f 121
nexpaq 1:55a6170b404f 122 static const uint32_t SB3[64] =
nexpaq 1:55a6170b404f 123 {
nexpaq 1:55a6170b404f 124 0x00000208, 0x08020200, 0x00000000, 0x08020008,
nexpaq 1:55a6170b404f 125 0x08000200, 0x00000000, 0x00020208, 0x08000200,
nexpaq 1:55a6170b404f 126 0x00020008, 0x08000008, 0x08000008, 0x00020000,
nexpaq 1:55a6170b404f 127 0x08020208, 0x00020008, 0x08020000, 0x00000208,
nexpaq 1:55a6170b404f 128 0x08000000, 0x00000008, 0x08020200, 0x00000200,
nexpaq 1:55a6170b404f 129 0x00020200, 0x08020000, 0x08020008, 0x00020208,
nexpaq 1:55a6170b404f 130 0x08000208, 0x00020200, 0x00020000, 0x08000208,
nexpaq 1:55a6170b404f 131 0x00000008, 0x08020208, 0x00000200, 0x08000000,
nexpaq 1:55a6170b404f 132 0x08020200, 0x08000000, 0x00020008, 0x00000208,
nexpaq 1:55a6170b404f 133 0x00020000, 0x08020200, 0x08000200, 0x00000000,
nexpaq 1:55a6170b404f 134 0x00000200, 0x00020008, 0x08020208, 0x08000200,
nexpaq 1:55a6170b404f 135 0x08000008, 0x00000200, 0x00000000, 0x08020008,
nexpaq 1:55a6170b404f 136 0x08000208, 0x00020000, 0x08000000, 0x08020208,
nexpaq 1:55a6170b404f 137 0x00000008, 0x00020208, 0x00020200, 0x08000008,
nexpaq 1:55a6170b404f 138 0x08020000, 0x08000208, 0x00000208, 0x08020000,
nexpaq 1:55a6170b404f 139 0x00020208, 0x00000008, 0x08020008, 0x00020200
nexpaq 1:55a6170b404f 140 };
nexpaq 1:55a6170b404f 141
nexpaq 1:55a6170b404f 142 static const uint32_t SB4[64] =
nexpaq 1:55a6170b404f 143 {
nexpaq 1:55a6170b404f 144 0x00802001, 0x00002081, 0x00002081, 0x00000080,
nexpaq 1:55a6170b404f 145 0x00802080, 0x00800081, 0x00800001, 0x00002001,
nexpaq 1:55a6170b404f 146 0x00000000, 0x00802000, 0x00802000, 0x00802081,
nexpaq 1:55a6170b404f 147 0x00000081, 0x00000000, 0x00800080, 0x00800001,
nexpaq 1:55a6170b404f 148 0x00000001, 0x00002000, 0x00800000, 0x00802001,
nexpaq 1:55a6170b404f 149 0x00000080, 0x00800000, 0x00002001, 0x00002080,
nexpaq 1:55a6170b404f 150 0x00800081, 0x00000001, 0x00002080, 0x00800080,
nexpaq 1:55a6170b404f 151 0x00002000, 0x00802080, 0x00802081, 0x00000081,
nexpaq 1:55a6170b404f 152 0x00800080, 0x00800001, 0x00802000, 0x00802081,
nexpaq 1:55a6170b404f 153 0x00000081, 0x00000000, 0x00000000, 0x00802000,
nexpaq 1:55a6170b404f 154 0x00002080, 0x00800080, 0x00800081, 0x00000001,
nexpaq 1:55a6170b404f 155 0x00802001, 0x00002081, 0x00002081, 0x00000080,
nexpaq 1:55a6170b404f 156 0x00802081, 0x00000081, 0x00000001, 0x00002000,
nexpaq 1:55a6170b404f 157 0x00800001, 0x00002001, 0x00802080, 0x00800081,
nexpaq 1:55a6170b404f 158 0x00002001, 0x00002080, 0x00800000, 0x00802001,
nexpaq 1:55a6170b404f 159 0x00000080, 0x00800000, 0x00002000, 0x00802080
nexpaq 1:55a6170b404f 160 };
nexpaq 1:55a6170b404f 161
nexpaq 1:55a6170b404f 162 static const uint32_t SB5[64] =
nexpaq 1:55a6170b404f 163 {
nexpaq 1:55a6170b404f 164 0x00000100, 0x02080100, 0x02080000, 0x42000100,
nexpaq 1:55a6170b404f 165 0x00080000, 0x00000100, 0x40000000, 0x02080000,
nexpaq 1:55a6170b404f 166 0x40080100, 0x00080000, 0x02000100, 0x40080100,
nexpaq 1:55a6170b404f 167 0x42000100, 0x42080000, 0x00080100, 0x40000000,
nexpaq 1:55a6170b404f 168 0x02000000, 0x40080000, 0x40080000, 0x00000000,
nexpaq 1:55a6170b404f 169 0x40000100, 0x42080100, 0x42080100, 0x02000100,
nexpaq 1:55a6170b404f 170 0x42080000, 0x40000100, 0x00000000, 0x42000000,
nexpaq 1:55a6170b404f 171 0x02080100, 0x02000000, 0x42000000, 0x00080100,
nexpaq 1:55a6170b404f 172 0x00080000, 0x42000100, 0x00000100, 0x02000000,
nexpaq 1:55a6170b404f 173 0x40000000, 0x02080000, 0x42000100, 0x40080100,
nexpaq 1:55a6170b404f 174 0x02000100, 0x40000000, 0x42080000, 0x02080100,
nexpaq 1:55a6170b404f 175 0x40080100, 0x00000100, 0x02000000, 0x42080000,
nexpaq 1:55a6170b404f 176 0x42080100, 0x00080100, 0x42000000, 0x42080100,
nexpaq 1:55a6170b404f 177 0x02080000, 0x00000000, 0x40080000, 0x42000000,
nexpaq 1:55a6170b404f 178 0x00080100, 0x02000100, 0x40000100, 0x00080000,
nexpaq 1:55a6170b404f 179 0x00000000, 0x40080000, 0x02080100, 0x40000100
nexpaq 1:55a6170b404f 180 };
nexpaq 1:55a6170b404f 181
nexpaq 1:55a6170b404f 182 static const uint32_t SB6[64] =
nexpaq 1:55a6170b404f 183 {
nexpaq 1:55a6170b404f 184 0x20000010, 0x20400000, 0x00004000, 0x20404010,
nexpaq 1:55a6170b404f 185 0x20400000, 0x00000010, 0x20404010, 0x00400000,
nexpaq 1:55a6170b404f 186 0x20004000, 0x00404010, 0x00400000, 0x20000010,
nexpaq 1:55a6170b404f 187 0x00400010, 0x20004000, 0x20000000, 0x00004010,
nexpaq 1:55a6170b404f 188 0x00000000, 0x00400010, 0x20004010, 0x00004000,
nexpaq 1:55a6170b404f 189 0x00404000, 0x20004010, 0x00000010, 0x20400010,
nexpaq 1:55a6170b404f 190 0x20400010, 0x00000000, 0x00404010, 0x20404000,
nexpaq 1:55a6170b404f 191 0x00004010, 0x00404000, 0x20404000, 0x20000000,
nexpaq 1:55a6170b404f 192 0x20004000, 0x00000010, 0x20400010, 0x00404000,
nexpaq 1:55a6170b404f 193 0x20404010, 0x00400000, 0x00004010, 0x20000010,
nexpaq 1:55a6170b404f 194 0x00400000, 0x20004000, 0x20000000, 0x00004010,
nexpaq 1:55a6170b404f 195 0x20000010, 0x20404010, 0x00404000, 0x20400000,
nexpaq 1:55a6170b404f 196 0x00404010, 0x20404000, 0x00000000, 0x20400010,
nexpaq 1:55a6170b404f 197 0x00000010, 0x00004000, 0x20400000, 0x00404010,
nexpaq 1:55a6170b404f 198 0x00004000, 0x00400010, 0x20004010, 0x00000000,
nexpaq 1:55a6170b404f 199 0x20404000, 0x20000000, 0x00400010, 0x20004010
nexpaq 1:55a6170b404f 200 };
nexpaq 1:55a6170b404f 201
nexpaq 1:55a6170b404f 202 static const uint32_t SB7[64] =
nexpaq 1:55a6170b404f 203 {
nexpaq 1:55a6170b404f 204 0x00200000, 0x04200002, 0x04000802, 0x00000000,
nexpaq 1:55a6170b404f 205 0x00000800, 0x04000802, 0x00200802, 0x04200800,
nexpaq 1:55a6170b404f 206 0x04200802, 0x00200000, 0x00000000, 0x04000002,
nexpaq 1:55a6170b404f 207 0x00000002, 0x04000000, 0x04200002, 0x00000802,
nexpaq 1:55a6170b404f 208 0x04000800, 0x00200802, 0x00200002, 0x04000800,
nexpaq 1:55a6170b404f 209 0x04000002, 0x04200000, 0x04200800, 0x00200002,
nexpaq 1:55a6170b404f 210 0x04200000, 0x00000800, 0x00000802, 0x04200802,
nexpaq 1:55a6170b404f 211 0x00200800, 0x00000002, 0x04000000, 0x00200800,
nexpaq 1:55a6170b404f 212 0x04000000, 0x00200800, 0x00200000, 0x04000802,
nexpaq 1:55a6170b404f 213 0x04000802, 0x04200002, 0x04200002, 0x00000002,
nexpaq 1:55a6170b404f 214 0x00200002, 0x04000000, 0x04000800, 0x00200000,
nexpaq 1:55a6170b404f 215 0x04200800, 0x00000802, 0x00200802, 0x04200800,
nexpaq 1:55a6170b404f 216 0x00000802, 0x04000002, 0x04200802, 0x04200000,
nexpaq 1:55a6170b404f 217 0x00200800, 0x00000000, 0x00000002, 0x04200802,
nexpaq 1:55a6170b404f 218 0x00000000, 0x00200802, 0x04200000, 0x00000800,
nexpaq 1:55a6170b404f 219 0x04000002, 0x04000800, 0x00000800, 0x00200002
nexpaq 1:55a6170b404f 220 };
nexpaq 1:55a6170b404f 221
nexpaq 1:55a6170b404f 222 static const uint32_t SB8[64] =
nexpaq 1:55a6170b404f 223 {
nexpaq 1:55a6170b404f 224 0x10001040, 0x00001000, 0x00040000, 0x10041040,
nexpaq 1:55a6170b404f 225 0x10000000, 0x10001040, 0x00000040, 0x10000000,
nexpaq 1:55a6170b404f 226 0x00040040, 0x10040000, 0x10041040, 0x00041000,
nexpaq 1:55a6170b404f 227 0x10041000, 0x00041040, 0x00001000, 0x00000040,
nexpaq 1:55a6170b404f 228 0x10040000, 0x10000040, 0x10001000, 0x00001040,
nexpaq 1:55a6170b404f 229 0x00041000, 0x00040040, 0x10040040, 0x10041000,
nexpaq 1:55a6170b404f 230 0x00001040, 0x00000000, 0x00000000, 0x10040040,
nexpaq 1:55a6170b404f 231 0x10000040, 0x10001000, 0x00041040, 0x00040000,
nexpaq 1:55a6170b404f 232 0x00041040, 0x00040000, 0x10041000, 0x00001000,
nexpaq 1:55a6170b404f 233 0x00000040, 0x10040040, 0x00001000, 0x00041040,
nexpaq 1:55a6170b404f 234 0x10001000, 0x00000040, 0x10000040, 0x10040000,
nexpaq 1:55a6170b404f 235 0x10040040, 0x10000000, 0x00040000, 0x10001040,
nexpaq 1:55a6170b404f 236 0x00000000, 0x10041040, 0x00040040, 0x10000040,
nexpaq 1:55a6170b404f 237 0x10040000, 0x10001000, 0x10001040, 0x00000000,
nexpaq 1:55a6170b404f 238 0x10041040, 0x00041000, 0x00041000, 0x00001040,
nexpaq 1:55a6170b404f 239 0x00001040, 0x00040040, 0x10000000, 0x10041000
nexpaq 1:55a6170b404f 240 };
nexpaq 1:55a6170b404f 241
nexpaq 1:55a6170b404f 242 /*
nexpaq 1:55a6170b404f 243 * PC1: left and right halves bit-swap
nexpaq 1:55a6170b404f 244 */
nexpaq 1:55a6170b404f 245 static const uint32_t LHs[16] =
nexpaq 1:55a6170b404f 246 {
nexpaq 1:55a6170b404f 247 0x00000000, 0x00000001, 0x00000100, 0x00000101,
nexpaq 1:55a6170b404f 248 0x00010000, 0x00010001, 0x00010100, 0x00010101,
nexpaq 1:55a6170b404f 249 0x01000000, 0x01000001, 0x01000100, 0x01000101,
nexpaq 1:55a6170b404f 250 0x01010000, 0x01010001, 0x01010100, 0x01010101
nexpaq 1:55a6170b404f 251 };
nexpaq 1:55a6170b404f 252
nexpaq 1:55a6170b404f 253 static const uint32_t RHs[16] =
nexpaq 1:55a6170b404f 254 {
nexpaq 1:55a6170b404f 255 0x00000000, 0x01000000, 0x00010000, 0x01010000,
nexpaq 1:55a6170b404f 256 0x00000100, 0x01000100, 0x00010100, 0x01010100,
nexpaq 1:55a6170b404f 257 0x00000001, 0x01000001, 0x00010001, 0x01010001,
nexpaq 1:55a6170b404f 258 0x00000101, 0x01000101, 0x00010101, 0x01010101,
nexpaq 1:55a6170b404f 259 };
nexpaq 1:55a6170b404f 260
nexpaq 1:55a6170b404f 261 /*
nexpaq 1:55a6170b404f 262 * Initial Permutation macro
nexpaq 1:55a6170b404f 263 */
nexpaq 1:55a6170b404f 264 #define DES_IP(X,Y) \
nexpaq 1:55a6170b404f 265 { \
nexpaq 1:55a6170b404f 266 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
nexpaq 1:55a6170b404f 267 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
nexpaq 1:55a6170b404f 268 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
nexpaq 1:55a6170b404f 269 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
nexpaq 1:55a6170b404f 270 Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
nexpaq 1:55a6170b404f 271 T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
nexpaq 1:55a6170b404f 272 X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
nexpaq 1:55a6170b404f 273 }
nexpaq 1:55a6170b404f 274
nexpaq 1:55a6170b404f 275 /*
nexpaq 1:55a6170b404f 276 * Final Permutation macro
nexpaq 1:55a6170b404f 277 */
nexpaq 1:55a6170b404f 278 #define DES_FP(X,Y) \
nexpaq 1:55a6170b404f 279 { \
nexpaq 1:55a6170b404f 280 X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
nexpaq 1:55a6170b404f 281 T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
nexpaq 1:55a6170b404f 282 Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
nexpaq 1:55a6170b404f 283 T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
nexpaq 1:55a6170b404f 284 T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
nexpaq 1:55a6170b404f 285 T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
nexpaq 1:55a6170b404f 286 T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
nexpaq 1:55a6170b404f 287 }
nexpaq 1:55a6170b404f 288
nexpaq 1:55a6170b404f 289 /*
nexpaq 1:55a6170b404f 290 * DES round macro
nexpaq 1:55a6170b404f 291 */
nexpaq 1:55a6170b404f 292 #define DES_ROUND(X,Y) \
nexpaq 1:55a6170b404f 293 { \
nexpaq 1:55a6170b404f 294 T = *SK++ ^ X; \
nexpaq 1:55a6170b404f 295 Y ^= SB8[ (T ) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 296 SB6[ (T >> 8) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 297 SB4[ (T >> 16) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 298 SB2[ (T >> 24) & 0x3F ]; \
nexpaq 1:55a6170b404f 299 \
nexpaq 1:55a6170b404f 300 T = *SK++ ^ ((X << 28) | (X >> 4)); \
nexpaq 1:55a6170b404f 301 Y ^= SB7[ (T ) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 302 SB5[ (T >> 8) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 303 SB3[ (T >> 16) & 0x3F ] ^ \
nexpaq 1:55a6170b404f 304 SB1[ (T >> 24) & 0x3F ]; \
nexpaq 1:55a6170b404f 305 }
nexpaq 1:55a6170b404f 306
nexpaq 1:55a6170b404f 307 #define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
nexpaq 1:55a6170b404f 308
nexpaq 1:55a6170b404f 309 void mbedtls_des_init( mbedtls_des_context *ctx )
nexpaq 1:55a6170b404f 310 {
nexpaq 1:55a6170b404f 311 memset( ctx, 0, sizeof( mbedtls_des_context ) );
nexpaq 1:55a6170b404f 312 }
nexpaq 1:55a6170b404f 313
nexpaq 1:55a6170b404f 314 void mbedtls_des_free( mbedtls_des_context *ctx )
nexpaq 1:55a6170b404f 315 {
nexpaq 1:55a6170b404f 316 if( ctx == NULL )
nexpaq 1:55a6170b404f 317 return;
nexpaq 1:55a6170b404f 318
nexpaq 1:55a6170b404f 319 mbedtls_zeroize( ctx, sizeof( mbedtls_des_context ) );
nexpaq 1:55a6170b404f 320 }
nexpaq 1:55a6170b404f 321
nexpaq 1:55a6170b404f 322 void mbedtls_des3_init( mbedtls_des3_context *ctx )
nexpaq 1:55a6170b404f 323 {
nexpaq 1:55a6170b404f 324 memset( ctx, 0, sizeof( mbedtls_des3_context ) );
nexpaq 1:55a6170b404f 325 }
nexpaq 1:55a6170b404f 326
nexpaq 1:55a6170b404f 327 void mbedtls_des3_free( mbedtls_des3_context *ctx )
nexpaq 1:55a6170b404f 328 {
nexpaq 1:55a6170b404f 329 if( ctx == NULL )
nexpaq 1:55a6170b404f 330 return;
nexpaq 1:55a6170b404f 331
nexpaq 1:55a6170b404f 332 mbedtls_zeroize( ctx, sizeof( mbedtls_des3_context ) );
nexpaq 1:55a6170b404f 333 }
nexpaq 1:55a6170b404f 334
nexpaq 1:55a6170b404f 335 static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
nexpaq 1:55a6170b404f 336 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
nexpaq 1:55a6170b404f 337 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
nexpaq 1:55a6170b404f 338 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
nexpaq 1:55a6170b404f 339 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
nexpaq 1:55a6170b404f 340 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
nexpaq 1:55a6170b404f 341 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
nexpaq 1:55a6170b404f 342 199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
nexpaq 1:55a6170b404f 343 227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
nexpaq 1:55a6170b404f 344 254 };
nexpaq 1:55a6170b404f 345
nexpaq 1:55a6170b404f 346 void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 347 {
nexpaq 1:55a6170b404f 348 int i;
nexpaq 1:55a6170b404f 349
nexpaq 1:55a6170b404f 350 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
nexpaq 1:55a6170b404f 351 key[i] = odd_parity_table[key[i] / 2];
nexpaq 1:55a6170b404f 352 }
nexpaq 1:55a6170b404f 353
nexpaq 1:55a6170b404f 354 /*
nexpaq 1:55a6170b404f 355 * Check the given key's parity, returns 1 on failure, 0 on SUCCESS
nexpaq 1:55a6170b404f 356 */
nexpaq 1:55a6170b404f 357 int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 358 {
nexpaq 1:55a6170b404f 359 int i;
nexpaq 1:55a6170b404f 360
nexpaq 1:55a6170b404f 361 for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
nexpaq 1:55a6170b404f 362 if( key[i] != odd_parity_table[key[i] / 2] )
nexpaq 1:55a6170b404f 363 return( 1 );
nexpaq 1:55a6170b404f 364
nexpaq 1:55a6170b404f 365 return( 0 );
nexpaq 1:55a6170b404f 366 }
nexpaq 1:55a6170b404f 367
nexpaq 1:55a6170b404f 368 /*
nexpaq 1:55a6170b404f 369 * Table of weak and semi-weak keys
nexpaq 1:55a6170b404f 370 *
nexpaq 1:55a6170b404f 371 * Source: http://en.wikipedia.org/wiki/Weak_key
nexpaq 1:55a6170b404f 372 *
nexpaq 1:55a6170b404f 373 * Weak:
nexpaq 1:55a6170b404f 374 * Alternating ones + zeros (0x0101010101010101)
nexpaq 1:55a6170b404f 375 * Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
nexpaq 1:55a6170b404f 376 * '0xE0E0E0E0F1F1F1F1'
nexpaq 1:55a6170b404f 377 * '0x1F1F1F1F0E0E0E0E'
nexpaq 1:55a6170b404f 378 *
nexpaq 1:55a6170b404f 379 * Semi-weak:
nexpaq 1:55a6170b404f 380 * 0x011F011F010E010E and 0x1F011F010E010E01
nexpaq 1:55a6170b404f 381 * 0x01E001E001F101F1 and 0xE001E001F101F101
nexpaq 1:55a6170b404f 382 * 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
nexpaq 1:55a6170b404f 383 * 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
nexpaq 1:55a6170b404f 384 * 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
nexpaq 1:55a6170b404f 385 * 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
nexpaq 1:55a6170b404f 386 *
nexpaq 1:55a6170b404f 387 */
nexpaq 1:55a6170b404f 388
nexpaq 1:55a6170b404f 389 #define WEAK_KEY_COUNT 16
nexpaq 1:55a6170b404f 390
nexpaq 1:55a6170b404f 391 static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] =
nexpaq 1:55a6170b404f 392 {
nexpaq 1:55a6170b404f 393 { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
nexpaq 1:55a6170b404f 394 { 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
nexpaq 1:55a6170b404f 395 { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
nexpaq 1:55a6170b404f 396 { 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
nexpaq 1:55a6170b404f 397
nexpaq 1:55a6170b404f 398 { 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
nexpaq 1:55a6170b404f 399 { 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
nexpaq 1:55a6170b404f 400 { 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
nexpaq 1:55a6170b404f 401 { 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
nexpaq 1:55a6170b404f 402 { 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
nexpaq 1:55a6170b404f 403 { 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
nexpaq 1:55a6170b404f 404 { 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
nexpaq 1:55a6170b404f 405 { 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
nexpaq 1:55a6170b404f 406 { 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
nexpaq 1:55a6170b404f 407 { 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
nexpaq 1:55a6170b404f 408 { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
nexpaq 1:55a6170b404f 409 { 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
nexpaq 1:55a6170b404f 410 };
nexpaq 1:55a6170b404f 411
nexpaq 1:55a6170b404f 412 int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 413 {
nexpaq 1:55a6170b404f 414 int i;
nexpaq 1:55a6170b404f 415
nexpaq 1:55a6170b404f 416 for( i = 0; i < WEAK_KEY_COUNT; i++ )
nexpaq 1:55a6170b404f 417 if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 )
nexpaq 1:55a6170b404f 418 return( 1 );
nexpaq 1:55a6170b404f 419
nexpaq 1:55a6170b404f 420 return( 0 );
nexpaq 1:55a6170b404f 421 }
nexpaq 1:55a6170b404f 422
nexpaq 1:55a6170b404f 423 #if !defined(MBEDTLS_DES_SETKEY_ALT)
nexpaq 1:55a6170b404f 424 void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 425 {
nexpaq 1:55a6170b404f 426 int i;
nexpaq 1:55a6170b404f 427 uint32_t X, Y, T;
nexpaq 1:55a6170b404f 428
nexpaq 1:55a6170b404f 429 GET_UINT32_BE( X, key, 0 );
nexpaq 1:55a6170b404f 430 GET_UINT32_BE( Y, key, 4 );
nexpaq 1:55a6170b404f 431
nexpaq 1:55a6170b404f 432 /*
nexpaq 1:55a6170b404f 433 * Permuted Choice 1
nexpaq 1:55a6170b404f 434 */
nexpaq 1:55a6170b404f 435 T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
nexpaq 1:55a6170b404f 436 T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
nexpaq 1:55a6170b404f 437
nexpaq 1:55a6170b404f 438 X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
nexpaq 1:55a6170b404f 439 | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
nexpaq 1:55a6170b404f 440 | (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
nexpaq 1:55a6170b404f 441 | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
nexpaq 1:55a6170b404f 442
nexpaq 1:55a6170b404f 443 Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
nexpaq 1:55a6170b404f 444 | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
nexpaq 1:55a6170b404f 445 | (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
nexpaq 1:55a6170b404f 446 | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
nexpaq 1:55a6170b404f 447
nexpaq 1:55a6170b404f 448 X &= 0x0FFFFFFF;
nexpaq 1:55a6170b404f 449 Y &= 0x0FFFFFFF;
nexpaq 1:55a6170b404f 450
nexpaq 1:55a6170b404f 451 /*
nexpaq 1:55a6170b404f 452 * calculate subkeys
nexpaq 1:55a6170b404f 453 */
nexpaq 1:55a6170b404f 454 for( i = 0; i < 16; i++ )
nexpaq 1:55a6170b404f 455 {
nexpaq 1:55a6170b404f 456 if( i < 2 || i == 8 || i == 15 )
nexpaq 1:55a6170b404f 457 {
nexpaq 1:55a6170b404f 458 X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
nexpaq 1:55a6170b404f 459 Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
nexpaq 1:55a6170b404f 460 }
nexpaq 1:55a6170b404f 461 else
nexpaq 1:55a6170b404f 462 {
nexpaq 1:55a6170b404f 463 X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
nexpaq 1:55a6170b404f 464 Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
nexpaq 1:55a6170b404f 465 }
nexpaq 1:55a6170b404f 466
nexpaq 1:55a6170b404f 467 *SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
nexpaq 1:55a6170b404f 468 | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
nexpaq 1:55a6170b404f 469 | ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
nexpaq 1:55a6170b404f 470 | ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
nexpaq 1:55a6170b404f 471 | ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
nexpaq 1:55a6170b404f 472 | ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
nexpaq 1:55a6170b404f 473 | ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
nexpaq 1:55a6170b404f 474 | ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
nexpaq 1:55a6170b404f 475 | ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
nexpaq 1:55a6170b404f 476 | ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
nexpaq 1:55a6170b404f 477 | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
nexpaq 1:55a6170b404f 478
nexpaq 1:55a6170b404f 479 *SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
nexpaq 1:55a6170b404f 480 | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
nexpaq 1:55a6170b404f 481 | ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
nexpaq 1:55a6170b404f 482 | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
nexpaq 1:55a6170b404f 483 | ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
nexpaq 1:55a6170b404f 484 | ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
nexpaq 1:55a6170b404f 485 | ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
nexpaq 1:55a6170b404f 486 | ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
nexpaq 1:55a6170b404f 487 | ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
nexpaq 1:55a6170b404f 488 | ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
nexpaq 1:55a6170b404f 489 | ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
nexpaq 1:55a6170b404f 490 }
nexpaq 1:55a6170b404f 491 }
nexpaq 1:55a6170b404f 492 #endif /* !MBEDTLS_DES_SETKEY_ALT */
nexpaq 1:55a6170b404f 493
nexpaq 1:55a6170b404f 494 /*
nexpaq 1:55a6170b404f 495 * DES key schedule (56-bit, encryption)
nexpaq 1:55a6170b404f 496 */
nexpaq 1:55a6170b404f 497 int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 498 {
nexpaq 1:55a6170b404f 499 mbedtls_des_setkey( ctx->sk, key );
nexpaq 1:55a6170b404f 500
nexpaq 1:55a6170b404f 501 return( 0 );
nexpaq 1:55a6170b404f 502 }
nexpaq 1:55a6170b404f 503
nexpaq 1:55a6170b404f 504 /*
nexpaq 1:55a6170b404f 505 * DES key schedule (56-bit, decryption)
nexpaq 1:55a6170b404f 506 */
nexpaq 1:55a6170b404f 507 int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
nexpaq 1:55a6170b404f 508 {
nexpaq 1:55a6170b404f 509 int i;
nexpaq 1:55a6170b404f 510
nexpaq 1:55a6170b404f 511 mbedtls_des_setkey( ctx->sk, key );
nexpaq 1:55a6170b404f 512
nexpaq 1:55a6170b404f 513 for( i = 0; i < 16; i += 2 )
nexpaq 1:55a6170b404f 514 {
nexpaq 1:55a6170b404f 515 SWAP( ctx->sk[i ], ctx->sk[30 - i] );
nexpaq 1:55a6170b404f 516 SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
nexpaq 1:55a6170b404f 517 }
nexpaq 1:55a6170b404f 518
nexpaq 1:55a6170b404f 519 return( 0 );
nexpaq 1:55a6170b404f 520 }
nexpaq 1:55a6170b404f 521
nexpaq 1:55a6170b404f 522 static void des3_set2key( uint32_t esk[96],
nexpaq 1:55a6170b404f 523 uint32_t dsk[96],
nexpaq 1:55a6170b404f 524 const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] )
nexpaq 1:55a6170b404f 525 {
nexpaq 1:55a6170b404f 526 int i;
nexpaq 1:55a6170b404f 527
nexpaq 1:55a6170b404f 528 mbedtls_des_setkey( esk, key );
nexpaq 1:55a6170b404f 529 mbedtls_des_setkey( dsk + 32, key + 8 );
nexpaq 1:55a6170b404f 530
nexpaq 1:55a6170b404f 531 for( i = 0; i < 32; i += 2 )
nexpaq 1:55a6170b404f 532 {
nexpaq 1:55a6170b404f 533 dsk[i ] = esk[30 - i];
nexpaq 1:55a6170b404f 534 dsk[i + 1] = esk[31 - i];
nexpaq 1:55a6170b404f 535
nexpaq 1:55a6170b404f 536 esk[i + 32] = dsk[62 - i];
nexpaq 1:55a6170b404f 537 esk[i + 33] = dsk[63 - i];
nexpaq 1:55a6170b404f 538
nexpaq 1:55a6170b404f 539 esk[i + 64] = esk[i ];
nexpaq 1:55a6170b404f 540 esk[i + 65] = esk[i + 1];
nexpaq 1:55a6170b404f 541
nexpaq 1:55a6170b404f 542 dsk[i + 64] = dsk[i ];
nexpaq 1:55a6170b404f 543 dsk[i + 65] = dsk[i + 1];
nexpaq 1:55a6170b404f 544 }
nexpaq 1:55a6170b404f 545 }
nexpaq 1:55a6170b404f 546
nexpaq 1:55a6170b404f 547 /*
nexpaq 1:55a6170b404f 548 * Triple-DES key schedule (112-bit, encryption)
nexpaq 1:55a6170b404f 549 */
nexpaq 1:55a6170b404f 550 int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 551 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
nexpaq 1:55a6170b404f 552 {
nexpaq 1:55a6170b404f 553 uint32_t sk[96];
nexpaq 1:55a6170b404f 554
nexpaq 1:55a6170b404f 555 des3_set2key( ctx->sk, sk, key );
nexpaq 1:55a6170b404f 556 mbedtls_zeroize( sk, sizeof( sk ) );
nexpaq 1:55a6170b404f 557
nexpaq 1:55a6170b404f 558 return( 0 );
nexpaq 1:55a6170b404f 559 }
nexpaq 1:55a6170b404f 560
nexpaq 1:55a6170b404f 561 /*
nexpaq 1:55a6170b404f 562 * Triple-DES key schedule (112-bit, decryption)
nexpaq 1:55a6170b404f 563 */
nexpaq 1:55a6170b404f 564 int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 565 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
nexpaq 1:55a6170b404f 566 {
nexpaq 1:55a6170b404f 567 uint32_t sk[96];
nexpaq 1:55a6170b404f 568
nexpaq 1:55a6170b404f 569 des3_set2key( sk, ctx->sk, key );
nexpaq 1:55a6170b404f 570 mbedtls_zeroize( sk, sizeof( sk ) );
nexpaq 1:55a6170b404f 571
nexpaq 1:55a6170b404f 572 return( 0 );
nexpaq 1:55a6170b404f 573 }
nexpaq 1:55a6170b404f 574
nexpaq 1:55a6170b404f 575 static void des3_set3key( uint32_t esk[96],
nexpaq 1:55a6170b404f 576 uint32_t dsk[96],
nexpaq 1:55a6170b404f 577 const unsigned char key[24] )
nexpaq 1:55a6170b404f 578 {
nexpaq 1:55a6170b404f 579 int i;
nexpaq 1:55a6170b404f 580
nexpaq 1:55a6170b404f 581 mbedtls_des_setkey( esk, key );
nexpaq 1:55a6170b404f 582 mbedtls_des_setkey( dsk + 32, key + 8 );
nexpaq 1:55a6170b404f 583 mbedtls_des_setkey( esk + 64, key + 16 );
nexpaq 1:55a6170b404f 584
nexpaq 1:55a6170b404f 585 for( i = 0; i < 32; i += 2 )
nexpaq 1:55a6170b404f 586 {
nexpaq 1:55a6170b404f 587 dsk[i ] = esk[94 - i];
nexpaq 1:55a6170b404f 588 dsk[i + 1] = esk[95 - i];
nexpaq 1:55a6170b404f 589
nexpaq 1:55a6170b404f 590 esk[i + 32] = dsk[62 - i];
nexpaq 1:55a6170b404f 591 esk[i + 33] = dsk[63 - i];
nexpaq 1:55a6170b404f 592
nexpaq 1:55a6170b404f 593 dsk[i + 64] = esk[30 - i];
nexpaq 1:55a6170b404f 594 dsk[i + 65] = esk[31 - i];
nexpaq 1:55a6170b404f 595 }
nexpaq 1:55a6170b404f 596 }
nexpaq 1:55a6170b404f 597
nexpaq 1:55a6170b404f 598 /*
nexpaq 1:55a6170b404f 599 * Triple-DES key schedule (168-bit, encryption)
nexpaq 1:55a6170b404f 600 */
nexpaq 1:55a6170b404f 601 int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 602 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
nexpaq 1:55a6170b404f 603 {
nexpaq 1:55a6170b404f 604 uint32_t sk[96];
nexpaq 1:55a6170b404f 605
nexpaq 1:55a6170b404f 606 des3_set3key( ctx->sk, sk, key );
nexpaq 1:55a6170b404f 607 mbedtls_zeroize( sk, sizeof( sk ) );
nexpaq 1:55a6170b404f 608
nexpaq 1:55a6170b404f 609 return( 0 );
nexpaq 1:55a6170b404f 610 }
nexpaq 1:55a6170b404f 611
nexpaq 1:55a6170b404f 612 /*
nexpaq 1:55a6170b404f 613 * Triple-DES key schedule (168-bit, decryption)
nexpaq 1:55a6170b404f 614 */
nexpaq 1:55a6170b404f 615 int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 616 const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
nexpaq 1:55a6170b404f 617 {
nexpaq 1:55a6170b404f 618 uint32_t sk[96];
nexpaq 1:55a6170b404f 619
nexpaq 1:55a6170b404f 620 des3_set3key( sk, ctx->sk, key );
nexpaq 1:55a6170b404f 621 mbedtls_zeroize( sk, sizeof( sk ) );
nexpaq 1:55a6170b404f 622
nexpaq 1:55a6170b404f 623 return( 0 );
nexpaq 1:55a6170b404f 624 }
nexpaq 1:55a6170b404f 625
nexpaq 1:55a6170b404f 626 /*
nexpaq 1:55a6170b404f 627 * DES-ECB block encryption/decryption
nexpaq 1:55a6170b404f 628 */
nexpaq 1:55a6170b404f 629 #if !defined(MBEDTLS_DES_CRYPT_ECB_ALT)
nexpaq 1:55a6170b404f 630 int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
nexpaq 1:55a6170b404f 631 const unsigned char input[8],
nexpaq 1:55a6170b404f 632 unsigned char output[8] )
nexpaq 1:55a6170b404f 633 {
nexpaq 1:55a6170b404f 634 int i;
nexpaq 1:55a6170b404f 635 uint32_t X, Y, T, *SK;
nexpaq 1:55a6170b404f 636
nexpaq 1:55a6170b404f 637 SK = ctx->sk;
nexpaq 1:55a6170b404f 638
nexpaq 1:55a6170b404f 639 GET_UINT32_BE( X, input, 0 );
nexpaq 1:55a6170b404f 640 GET_UINT32_BE( Y, input, 4 );
nexpaq 1:55a6170b404f 641
nexpaq 1:55a6170b404f 642 DES_IP( X, Y );
nexpaq 1:55a6170b404f 643
nexpaq 1:55a6170b404f 644 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 645 {
nexpaq 1:55a6170b404f 646 DES_ROUND( Y, X );
nexpaq 1:55a6170b404f 647 DES_ROUND( X, Y );
nexpaq 1:55a6170b404f 648 }
nexpaq 1:55a6170b404f 649
nexpaq 1:55a6170b404f 650 DES_FP( Y, X );
nexpaq 1:55a6170b404f 651
nexpaq 1:55a6170b404f 652 PUT_UINT32_BE( Y, output, 0 );
nexpaq 1:55a6170b404f 653 PUT_UINT32_BE( X, output, 4 );
nexpaq 1:55a6170b404f 654
nexpaq 1:55a6170b404f 655 return( 0 );
nexpaq 1:55a6170b404f 656 }
nexpaq 1:55a6170b404f 657 #endif /* !MBEDTLS_DES_CRYPT_ECB_ALT */
nexpaq 1:55a6170b404f 658
nexpaq 1:55a6170b404f 659 #if defined(MBEDTLS_CIPHER_MODE_CBC)
nexpaq 1:55a6170b404f 660 /*
nexpaq 1:55a6170b404f 661 * DES-CBC buffer encryption/decryption
nexpaq 1:55a6170b404f 662 */
nexpaq 1:55a6170b404f 663 int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
nexpaq 1:55a6170b404f 664 int mode,
nexpaq 1:55a6170b404f 665 size_t length,
nexpaq 1:55a6170b404f 666 unsigned char iv[8],
nexpaq 1:55a6170b404f 667 const unsigned char *input,
nexpaq 1:55a6170b404f 668 unsigned char *output )
nexpaq 1:55a6170b404f 669 {
nexpaq 1:55a6170b404f 670 int i;
nexpaq 1:55a6170b404f 671 unsigned char temp[8];
nexpaq 1:55a6170b404f 672
nexpaq 1:55a6170b404f 673 if( length % 8 )
nexpaq 1:55a6170b404f 674 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
nexpaq 1:55a6170b404f 675
nexpaq 1:55a6170b404f 676 if( mode == MBEDTLS_DES_ENCRYPT )
nexpaq 1:55a6170b404f 677 {
nexpaq 1:55a6170b404f 678 while( length > 0 )
nexpaq 1:55a6170b404f 679 {
nexpaq 1:55a6170b404f 680 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 681 output[i] = (unsigned char)( input[i] ^ iv[i] );
nexpaq 1:55a6170b404f 682
nexpaq 1:55a6170b404f 683 mbedtls_des_crypt_ecb( ctx, output, output );
nexpaq 1:55a6170b404f 684 memcpy( iv, output, 8 );
nexpaq 1:55a6170b404f 685
nexpaq 1:55a6170b404f 686 input += 8;
nexpaq 1:55a6170b404f 687 output += 8;
nexpaq 1:55a6170b404f 688 length -= 8;
nexpaq 1:55a6170b404f 689 }
nexpaq 1:55a6170b404f 690 }
nexpaq 1:55a6170b404f 691 else /* MBEDTLS_DES_DECRYPT */
nexpaq 1:55a6170b404f 692 {
nexpaq 1:55a6170b404f 693 while( length > 0 )
nexpaq 1:55a6170b404f 694 {
nexpaq 1:55a6170b404f 695 memcpy( temp, input, 8 );
nexpaq 1:55a6170b404f 696 mbedtls_des_crypt_ecb( ctx, input, output );
nexpaq 1:55a6170b404f 697
nexpaq 1:55a6170b404f 698 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 699 output[i] = (unsigned char)( output[i] ^ iv[i] );
nexpaq 1:55a6170b404f 700
nexpaq 1:55a6170b404f 701 memcpy( iv, temp, 8 );
nexpaq 1:55a6170b404f 702
nexpaq 1:55a6170b404f 703 input += 8;
nexpaq 1:55a6170b404f 704 output += 8;
nexpaq 1:55a6170b404f 705 length -= 8;
nexpaq 1:55a6170b404f 706 }
nexpaq 1:55a6170b404f 707 }
nexpaq 1:55a6170b404f 708
nexpaq 1:55a6170b404f 709 return( 0 );
nexpaq 1:55a6170b404f 710 }
nexpaq 1:55a6170b404f 711 #endif /* MBEDTLS_CIPHER_MODE_CBC */
nexpaq 1:55a6170b404f 712
nexpaq 1:55a6170b404f 713 /*
nexpaq 1:55a6170b404f 714 * 3DES-ECB block encryption/decryption
nexpaq 1:55a6170b404f 715 */
nexpaq 1:55a6170b404f 716 #if !defined(MBEDTLS_DES3_CRYPT_ECB_ALT)
nexpaq 1:55a6170b404f 717 int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 718 const unsigned char input[8],
nexpaq 1:55a6170b404f 719 unsigned char output[8] )
nexpaq 1:55a6170b404f 720 {
nexpaq 1:55a6170b404f 721 int i;
nexpaq 1:55a6170b404f 722 uint32_t X, Y, T, *SK;
nexpaq 1:55a6170b404f 723
nexpaq 1:55a6170b404f 724 SK = ctx->sk;
nexpaq 1:55a6170b404f 725
nexpaq 1:55a6170b404f 726 GET_UINT32_BE( X, input, 0 );
nexpaq 1:55a6170b404f 727 GET_UINT32_BE( Y, input, 4 );
nexpaq 1:55a6170b404f 728
nexpaq 1:55a6170b404f 729 DES_IP( X, Y );
nexpaq 1:55a6170b404f 730
nexpaq 1:55a6170b404f 731 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 732 {
nexpaq 1:55a6170b404f 733 DES_ROUND( Y, X );
nexpaq 1:55a6170b404f 734 DES_ROUND( X, Y );
nexpaq 1:55a6170b404f 735 }
nexpaq 1:55a6170b404f 736
nexpaq 1:55a6170b404f 737 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 738 {
nexpaq 1:55a6170b404f 739 DES_ROUND( X, Y );
nexpaq 1:55a6170b404f 740 DES_ROUND( Y, X );
nexpaq 1:55a6170b404f 741 }
nexpaq 1:55a6170b404f 742
nexpaq 1:55a6170b404f 743 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 744 {
nexpaq 1:55a6170b404f 745 DES_ROUND( Y, X );
nexpaq 1:55a6170b404f 746 DES_ROUND( X, Y );
nexpaq 1:55a6170b404f 747 }
nexpaq 1:55a6170b404f 748
nexpaq 1:55a6170b404f 749 DES_FP( Y, X );
nexpaq 1:55a6170b404f 750
nexpaq 1:55a6170b404f 751 PUT_UINT32_BE( Y, output, 0 );
nexpaq 1:55a6170b404f 752 PUT_UINT32_BE( X, output, 4 );
nexpaq 1:55a6170b404f 753
nexpaq 1:55a6170b404f 754 return( 0 );
nexpaq 1:55a6170b404f 755 }
nexpaq 1:55a6170b404f 756 #endif /* !MBEDTLS_DES3_CRYPT_ECB_ALT */
nexpaq 1:55a6170b404f 757
nexpaq 1:55a6170b404f 758 #if defined(MBEDTLS_CIPHER_MODE_CBC)
nexpaq 1:55a6170b404f 759 /*
nexpaq 1:55a6170b404f 760 * 3DES-CBC buffer encryption/decryption
nexpaq 1:55a6170b404f 761 */
nexpaq 1:55a6170b404f 762 int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
nexpaq 1:55a6170b404f 763 int mode,
nexpaq 1:55a6170b404f 764 size_t length,
nexpaq 1:55a6170b404f 765 unsigned char iv[8],
nexpaq 1:55a6170b404f 766 const unsigned char *input,
nexpaq 1:55a6170b404f 767 unsigned char *output )
nexpaq 1:55a6170b404f 768 {
nexpaq 1:55a6170b404f 769 int i;
nexpaq 1:55a6170b404f 770 unsigned char temp[8];
nexpaq 1:55a6170b404f 771
nexpaq 1:55a6170b404f 772 if( length % 8 )
nexpaq 1:55a6170b404f 773 return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
nexpaq 1:55a6170b404f 774
nexpaq 1:55a6170b404f 775 if( mode == MBEDTLS_DES_ENCRYPT )
nexpaq 1:55a6170b404f 776 {
nexpaq 1:55a6170b404f 777 while( length > 0 )
nexpaq 1:55a6170b404f 778 {
nexpaq 1:55a6170b404f 779 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 780 output[i] = (unsigned char)( input[i] ^ iv[i] );
nexpaq 1:55a6170b404f 781
nexpaq 1:55a6170b404f 782 mbedtls_des3_crypt_ecb( ctx, output, output );
nexpaq 1:55a6170b404f 783 memcpy( iv, output, 8 );
nexpaq 1:55a6170b404f 784
nexpaq 1:55a6170b404f 785 input += 8;
nexpaq 1:55a6170b404f 786 output += 8;
nexpaq 1:55a6170b404f 787 length -= 8;
nexpaq 1:55a6170b404f 788 }
nexpaq 1:55a6170b404f 789 }
nexpaq 1:55a6170b404f 790 else /* MBEDTLS_DES_DECRYPT */
nexpaq 1:55a6170b404f 791 {
nexpaq 1:55a6170b404f 792 while( length > 0 )
nexpaq 1:55a6170b404f 793 {
nexpaq 1:55a6170b404f 794 memcpy( temp, input, 8 );
nexpaq 1:55a6170b404f 795 mbedtls_des3_crypt_ecb( ctx, input, output );
nexpaq 1:55a6170b404f 796
nexpaq 1:55a6170b404f 797 for( i = 0; i < 8; i++ )
nexpaq 1:55a6170b404f 798 output[i] = (unsigned char)( output[i] ^ iv[i] );
nexpaq 1:55a6170b404f 799
nexpaq 1:55a6170b404f 800 memcpy( iv, temp, 8 );
nexpaq 1:55a6170b404f 801
nexpaq 1:55a6170b404f 802 input += 8;
nexpaq 1:55a6170b404f 803 output += 8;
nexpaq 1:55a6170b404f 804 length -= 8;
nexpaq 1:55a6170b404f 805 }
nexpaq 1:55a6170b404f 806 }
nexpaq 1:55a6170b404f 807
nexpaq 1:55a6170b404f 808 return( 0 );
nexpaq 1:55a6170b404f 809 }
nexpaq 1:55a6170b404f 810 #endif /* MBEDTLS_CIPHER_MODE_CBC */
nexpaq 1:55a6170b404f 811
nexpaq 1:55a6170b404f 812 #endif /* !MBEDTLS_DES_ALT */
nexpaq 1:55a6170b404f 813
nexpaq 1:55a6170b404f 814 #if defined(MBEDTLS_SELF_TEST)
nexpaq 1:55a6170b404f 815 /*
nexpaq 1:55a6170b404f 816 * DES and 3DES test vectors from:
nexpaq 1:55a6170b404f 817 *
nexpaq 1:55a6170b404f 818 * http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
nexpaq 1:55a6170b404f 819 */
nexpaq 1:55a6170b404f 820 static const unsigned char des3_test_keys[24] =
nexpaq 1:55a6170b404f 821 {
nexpaq 1:55a6170b404f 822 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
nexpaq 1:55a6170b404f 823 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
nexpaq 1:55a6170b404f 824 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
nexpaq 1:55a6170b404f 825 };
nexpaq 1:55a6170b404f 826
nexpaq 1:55a6170b404f 827 static const unsigned char des3_test_buf[8] =
nexpaq 1:55a6170b404f 828 {
nexpaq 1:55a6170b404f 829 0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
nexpaq 1:55a6170b404f 830 };
nexpaq 1:55a6170b404f 831
nexpaq 1:55a6170b404f 832 static const unsigned char des3_test_ecb_dec[3][8] =
nexpaq 1:55a6170b404f 833 {
nexpaq 1:55a6170b404f 834 { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
nexpaq 1:55a6170b404f 835 { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
nexpaq 1:55a6170b404f 836 { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
nexpaq 1:55a6170b404f 837 };
nexpaq 1:55a6170b404f 838
nexpaq 1:55a6170b404f 839 static const unsigned char des3_test_ecb_enc[3][8] =
nexpaq 1:55a6170b404f 840 {
nexpaq 1:55a6170b404f 841 { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
nexpaq 1:55a6170b404f 842 { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
nexpaq 1:55a6170b404f 843 { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
nexpaq 1:55a6170b404f 844 };
nexpaq 1:55a6170b404f 845
nexpaq 1:55a6170b404f 846 #if defined(MBEDTLS_CIPHER_MODE_CBC)
nexpaq 1:55a6170b404f 847 static const unsigned char des3_test_iv[8] =
nexpaq 1:55a6170b404f 848 {
nexpaq 1:55a6170b404f 849 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
nexpaq 1:55a6170b404f 850 };
nexpaq 1:55a6170b404f 851
nexpaq 1:55a6170b404f 852 static const unsigned char des3_test_cbc_dec[3][8] =
nexpaq 1:55a6170b404f 853 {
nexpaq 1:55a6170b404f 854 { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
nexpaq 1:55a6170b404f 855 { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
nexpaq 1:55a6170b404f 856 { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
nexpaq 1:55a6170b404f 857 };
nexpaq 1:55a6170b404f 858
nexpaq 1:55a6170b404f 859 static const unsigned char des3_test_cbc_enc[3][8] =
nexpaq 1:55a6170b404f 860 {
nexpaq 1:55a6170b404f 861 { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
nexpaq 1:55a6170b404f 862 { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
nexpaq 1:55a6170b404f 863 { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
nexpaq 1:55a6170b404f 864 };
nexpaq 1:55a6170b404f 865 #endif /* MBEDTLS_CIPHER_MODE_CBC */
nexpaq 1:55a6170b404f 866
nexpaq 1:55a6170b404f 867 /*
nexpaq 1:55a6170b404f 868 * Checkup routine
nexpaq 1:55a6170b404f 869 */
nexpaq 1:55a6170b404f 870 int mbedtls_des_self_test( int verbose )
nexpaq 1:55a6170b404f 871 {
nexpaq 1:55a6170b404f 872 int i, j, u, v, ret = 0;
nexpaq 1:55a6170b404f 873 mbedtls_des_context ctx;
nexpaq 1:55a6170b404f 874 mbedtls_des3_context ctx3;
nexpaq 1:55a6170b404f 875 unsigned char buf[8];
nexpaq 1:55a6170b404f 876 #if defined(MBEDTLS_CIPHER_MODE_CBC)
nexpaq 1:55a6170b404f 877 unsigned char prv[8];
nexpaq 1:55a6170b404f 878 unsigned char iv[8];
nexpaq 1:55a6170b404f 879 #endif
nexpaq 1:55a6170b404f 880
nexpaq 1:55a6170b404f 881 mbedtls_des_init( &ctx );
nexpaq 1:55a6170b404f 882 mbedtls_des3_init( &ctx3 );
nexpaq 1:55a6170b404f 883 /*
nexpaq 1:55a6170b404f 884 * ECB mode
nexpaq 1:55a6170b404f 885 */
nexpaq 1:55a6170b404f 886 for( i = 0; i < 6; i++ )
nexpaq 1:55a6170b404f 887 {
nexpaq 1:55a6170b404f 888 u = i >> 1;
nexpaq 1:55a6170b404f 889 v = i & 1;
nexpaq 1:55a6170b404f 890
nexpaq 1:55a6170b404f 891 if( verbose != 0 )
nexpaq 1:55a6170b404f 892 mbedtls_printf( " DES%c-ECB-%3d (%s): ",
nexpaq 1:55a6170b404f 893 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
nexpaq 1:55a6170b404f 894 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
nexpaq 1:55a6170b404f 895
nexpaq 1:55a6170b404f 896 memcpy( buf, des3_test_buf, 8 );
nexpaq 1:55a6170b404f 897
nexpaq 1:55a6170b404f 898 switch( i )
nexpaq 1:55a6170b404f 899 {
nexpaq 1:55a6170b404f 900 case 0:
nexpaq 1:55a6170b404f 901 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
nexpaq 1:55a6170b404f 902 break;
nexpaq 1:55a6170b404f 903
nexpaq 1:55a6170b404f 904 case 1:
nexpaq 1:55a6170b404f 905 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
nexpaq 1:55a6170b404f 906 break;
nexpaq 1:55a6170b404f 907
nexpaq 1:55a6170b404f 908 case 2:
nexpaq 1:55a6170b404f 909 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 910 break;
nexpaq 1:55a6170b404f 911
nexpaq 1:55a6170b404f 912 case 3:
nexpaq 1:55a6170b404f 913 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 914 break;
nexpaq 1:55a6170b404f 915
nexpaq 1:55a6170b404f 916 case 4:
nexpaq 1:55a6170b404f 917 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 918 break;
nexpaq 1:55a6170b404f 919
nexpaq 1:55a6170b404f 920 case 5:
nexpaq 1:55a6170b404f 921 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 922 break;
nexpaq 1:55a6170b404f 923
nexpaq 1:55a6170b404f 924 default:
nexpaq 1:55a6170b404f 925 return( 1 );
nexpaq 1:55a6170b404f 926 }
nexpaq 1:55a6170b404f 927
nexpaq 1:55a6170b404f 928 for( j = 0; j < 10000; j++ )
nexpaq 1:55a6170b404f 929 {
nexpaq 1:55a6170b404f 930 if( u == 0 )
nexpaq 1:55a6170b404f 931 mbedtls_des_crypt_ecb( &ctx, buf, buf );
nexpaq 1:55a6170b404f 932 else
nexpaq 1:55a6170b404f 933 mbedtls_des3_crypt_ecb( &ctx3, buf, buf );
nexpaq 1:55a6170b404f 934 }
nexpaq 1:55a6170b404f 935
nexpaq 1:55a6170b404f 936 if( ( v == MBEDTLS_DES_DECRYPT &&
nexpaq 1:55a6170b404f 937 memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
nexpaq 1:55a6170b404f 938 ( v != MBEDTLS_DES_DECRYPT &&
nexpaq 1:55a6170b404f 939 memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
nexpaq 1:55a6170b404f 940 {
nexpaq 1:55a6170b404f 941 if( verbose != 0 )
nexpaq 1:55a6170b404f 942 mbedtls_printf( "failed\n" );
nexpaq 1:55a6170b404f 943
nexpaq 1:55a6170b404f 944 ret = 1;
nexpaq 1:55a6170b404f 945 goto exit;
nexpaq 1:55a6170b404f 946 }
nexpaq 1:55a6170b404f 947
nexpaq 1:55a6170b404f 948 if( verbose != 0 )
nexpaq 1:55a6170b404f 949 mbedtls_printf( "passed\n" );
nexpaq 1:55a6170b404f 950 }
nexpaq 1:55a6170b404f 951
nexpaq 1:55a6170b404f 952 if( verbose != 0 )
nexpaq 1:55a6170b404f 953 mbedtls_printf( "\n" );
nexpaq 1:55a6170b404f 954
nexpaq 1:55a6170b404f 955 #if defined(MBEDTLS_CIPHER_MODE_CBC)
nexpaq 1:55a6170b404f 956 /*
nexpaq 1:55a6170b404f 957 * CBC mode
nexpaq 1:55a6170b404f 958 */
nexpaq 1:55a6170b404f 959 for( i = 0; i < 6; i++ )
nexpaq 1:55a6170b404f 960 {
nexpaq 1:55a6170b404f 961 u = i >> 1;
nexpaq 1:55a6170b404f 962 v = i & 1;
nexpaq 1:55a6170b404f 963
nexpaq 1:55a6170b404f 964 if( verbose != 0 )
nexpaq 1:55a6170b404f 965 mbedtls_printf( " DES%c-CBC-%3d (%s): ",
nexpaq 1:55a6170b404f 966 ( u == 0 ) ? ' ' : '3', 56 + u * 56,
nexpaq 1:55a6170b404f 967 ( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
nexpaq 1:55a6170b404f 968
nexpaq 1:55a6170b404f 969 memcpy( iv, des3_test_iv, 8 );
nexpaq 1:55a6170b404f 970 memcpy( prv, des3_test_iv, 8 );
nexpaq 1:55a6170b404f 971 memcpy( buf, des3_test_buf, 8 );
nexpaq 1:55a6170b404f 972
nexpaq 1:55a6170b404f 973 switch( i )
nexpaq 1:55a6170b404f 974 {
nexpaq 1:55a6170b404f 975 case 0:
nexpaq 1:55a6170b404f 976 mbedtls_des_setkey_dec( &ctx, des3_test_keys );
nexpaq 1:55a6170b404f 977 break;
nexpaq 1:55a6170b404f 978
nexpaq 1:55a6170b404f 979 case 1:
nexpaq 1:55a6170b404f 980 mbedtls_des_setkey_enc( &ctx, des3_test_keys );
nexpaq 1:55a6170b404f 981 break;
nexpaq 1:55a6170b404f 982
nexpaq 1:55a6170b404f 983 case 2:
nexpaq 1:55a6170b404f 984 mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 985 break;
nexpaq 1:55a6170b404f 986
nexpaq 1:55a6170b404f 987 case 3:
nexpaq 1:55a6170b404f 988 mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 989 break;
nexpaq 1:55a6170b404f 990
nexpaq 1:55a6170b404f 991 case 4:
nexpaq 1:55a6170b404f 992 mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 993 break;
nexpaq 1:55a6170b404f 994
nexpaq 1:55a6170b404f 995 case 5:
nexpaq 1:55a6170b404f 996 mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
nexpaq 1:55a6170b404f 997 break;
nexpaq 1:55a6170b404f 998
nexpaq 1:55a6170b404f 999 default:
nexpaq 1:55a6170b404f 1000 return( 1 );
nexpaq 1:55a6170b404f 1001 }
nexpaq 1:55a6170b404f 1002
nexpaq 1:55a6170b404f 1003 if( v == MBEDTLS_DES_DECRYPT )
nexpaq 1:55a6170b404f 1004 {
nexpaq 1:55a6170b404f 1005 for( j = 0; j < 10000; j++ )
nexpaq 1:55a6170b404f 1006 {
nexpaq 1:55a6170b404f 1007 if( u == 0 )
nexpaq 1:55a6170b404f 1008 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
nexpaq 1:55a6170b404f 1009 else
nexpaq 1:55a6170b404f 1010 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
nexpaq 1:55a6170b404f 1011 }
nexpaq 1:55a6170b404f 1012 }
nexpaq 1:55a6170b404f 1013 else
nexpaq 1:55a6170b404f 1014 {
nexpaq 1:55a6170b404f 1015 for( j = 0; j < 10000; j++ )
nexpaq 1:55a6170b404f 1016 {
nexpaq 1:55a6170b404f 1017 unsigned char tmp[8];
nexpaq 1:55a6170b404f 1018
nexpaq 1:55a6170b404f 1019 if( u == 0 )
nexpaq 1:55a6170b404f 1020 mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
nexpaq 1:55a6170b404f 1021 else
nexpaq 1:55a6170b404f 1022 mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
nexpaq 1:55a6170b404f 1023
nexpaq 1:55a6170b404f 1024 memcpy( tmp, prv, 8 );
nexpaq 1:55a6170b404f 1025 memcpy( prv, buf, 8 );
nexpaq 1:55a6170b404f 1026 memcpy( buf, tmp, 8 );
nexpaq 1:55a6170b404f 1027 }
nexpaq 1:55a6170b404f 1028
nexpaq 1:55a6170b404f 1029 memcpy( buf, prv, 8 );
nexpaq 1:55a6170b404f 1030 }
nexpaq 1:55a6170b404f 1031
nexpaq 1:55a6170b404f 1032 if( ( v == MBEDTLS_DES_DECRYPT &&
nexpaq 1:55a6170b404f 1033 memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
nexpaq 1:55a6170b404f 1034 ( v != MBEDTLS_DES_DECRYPT &&
nexpaq 1:55a6170b404f 1035 memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
nexpaq 1:55a6170b404f 1036 {
nexpaq 1:55a6170b404f 1037 if( verbose != 0 )
nexpaq 1:55a6170b404f 1038 mbedtls_printf( "failed\n" );
nexpaq 1:55a6170b404f 1039
nexpaq 1:55a6170b404f 1040 ret = 1;
nexpaq 1:55a6170b404f 1041 goto exit;
nexpaq 1:55a6170b404f 1042 }
nexpaq 1:55a6170b404f 1043
nexpaq 1:55a6170b404f 1044 if( verbose != 0 )
nexpaq 1:55a6170b404f 1045 mbedtls_printf( "passed\n" );
nexpaq 1:55a6170b404f 1046 }
nexpaq 1:55a6170b404f 1047 #endif /* MBEDTLS_CIPHER_MODE_CBC */
nexpaq 1:55a6170b404f 1048
nexpaq 1:55a6170b404f 1049 if( verbose != 0 )
nexpaq 1:55a6170b404f 1050 mbedtls_printf( "\n" );
nexpaq 1:55a6170b404f 1051
nexpaq 1:55a6170b404f 1052 exit:
nexpaq 1:55a6170b404f 1053 mbedtls_des_free( &ctx );
nexpaq 1:55a6170b404f 1054 mbedtls_des3_free( &ctx3 );
nexpaq 1:55a6170b404f 1055
nexpaq 1:55a6170b404f 1056 return( ret );
nexpaq 1:55a6170b404f 1057 }
nexpaq 1:55a6170b404f 1058
nexpaq 1:55a6170b404f 1059 #endif /* MBEDTLS_SELF_TEST */
nexpaq 1:55a6170b404f 1060
nexpaq 1:55a6170b404f 1061 #endif /* MBEDTLS_DES_C */