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