[398] | 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 ) );
|
---|
| 329 | }
|
---|
| 330 |
|
---|
| 331 | static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
|
---|
| 332 | 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
|
---|
| 333 | 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
|
---|
| 334 | 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
|
---|
| 335 | 115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
|
---|
| 336 | 143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
|
---|
| 337 | 171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
|
---|
| 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 */
|
---|