[388] | 1 | /* des3.h
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| 2 | *
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| 3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL.
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| 6 | *
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| 7 | * wolfSSL is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * wolfSSL is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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| 20 | */
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| 21 |
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| 22 | /*!
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| 23 | \file wolfssl/wolfcrypt/des3.h
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| 24 | */
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| 25 |
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| 26 | #ifndef WOLF_CRYPT_DES3_H
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| 27 | #define WOLF_CRYPT_DES3_H
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| 28 |
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| 29 | #include <wolfssl/wolfcrypt/types.h>
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| 30 |
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| 31 | #ifndef NO_DES3
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| 32 |
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| 33 | #if defined(HAVE_FIPS) && \
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| 34 | defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
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| 35 | #include <wolfssl/wolfcrypt/fips.h>
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| 36 | #endif /* HAVE_FIPS_VERSION >= 2 */
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| 37 |
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| 38 | #if defined(HAVE_FIPS) && \
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| 39 | (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))
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| 40 | /* included for fips @wc_fips */
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| 41 | #include <cyassl/ctaocrypt/des3.h>
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| 42 | #endif
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| 43 |
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| 44 | #ifdef __cplusplus
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| 45 | extern "C" {
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| 46 | #endif
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| 47 |
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| 48 | /* these are required for FIPS and non-FIPS */
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| 49 | enum {
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| 50 | DES_KEY_SIZE = 8, /* des */
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| 51 | DES3_KEY_SIZE = 24, /* 3 des ede */
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| 52 | DES_IV_SIZE = 8, /* should be the same as DES_BLOCK_SIZE */
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| 53 | };
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| 54 |
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| 55 |
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| 56 | /* avoid redefinition of structs */
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| 57 | #if !defined(HAVE_FIPS) || \
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| 58 | (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))
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| 59 |
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| 60 | #ifdef WOLFSSL_ASYNC_CRYPT
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| 61 | #include <wolfssl/wolfcrypt/async.h>
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| 62 | #endif
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| 63 |
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| 64 | enum {
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| 65 | DES_ENC_TYPE = WC_CIPHER_DES, /* cipher unique type */
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| 66 | DES3_ENC_TYPE = WC_CIPHER_DES3, /* cipher unique type */
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| 67 |
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| 68 | DES_BLOCK_SIZE = 8,
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| 69 | DES_KS_SIZE = 32, /* internal DES key buffer size */
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| 70 |
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| 71 | DES_ENCRYPTION = 0,
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| 72 | DES_DECRYPTION = 1
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| 73 | };
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| 74 |
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| 75 | #define DES_IVLEN 8
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| 76 | #define DES_KEYLEN 8
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| 77 | #define DES3_IVLEN 8
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| 78 | #define DES3_KEYLEN 24
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| 79 |
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| 80 |
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| 81 | #if defined(STM32_CRYPTO)
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| 82 | enum {
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| 83 | DES_CBC = 0,
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| 84 | DES_ECB = 1
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| 85 | };
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| 86 | #endif
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| 87 |
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| 88 |
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| 89 | /* DES encryption and decryption */
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| 90 | typedef struct Des {
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| 91 | word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
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| 92 | word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
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| 93 | word32 key[DES_KS_SIZE];
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| 94 | } Des;
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| 95 |
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| 96 |
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| 97 | /* DES3 encryption and decryption */
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| 98 | typedef struct Des3 {
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| 99 | word32 key[3][DES_KS_SIZE];
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| 100 | word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
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| 101 | word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
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| 102 | #ifdef WOLFSSL_ASYNC_CRYPT
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| 103 | const byte* key_raw;
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| 104 | const byte* iv_raw;
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| 105 | WC_ASYNC_DEV asyncDev;
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| 106 | #endif
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| 107 | void* heap;
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| 108 | } Des3;
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| 109 | #endif /* HAVE_FIPS */
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| 110 |
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| 111 |
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| 112 | WOLFSSL_API int wc_Des_SetKey(Des* des, const byte* key,
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| 113 | const byte* iv, int dir);
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| 114 | WOLFSSL_API void wc_Des_SetIV(Des* des, const byte* iv);
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| 115 | WOLFSSL_API int wc_Des_CbcEncrypt(Des* des, byte* out,
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| 116 | const byte* in, word32 sz);
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| 117 | WOLFSSL_API int wc_Des_CbcDecrypt(Des* des, byte* out,
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| 118 | const byte* in, word32 sz);
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| 119 | WOLFSSL_API int wc_Des_EcbEncrypt(Des* des, byte* out,
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| 120 | const byte* in, word32 sz);
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| 121 | WOLFSSL_API int wc_Des3_EcbEncrypt(Des3* des, byte* out,
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| 122 | const byte* in, word32 sz);
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| 123 |
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| 124 | /* ECB decrypt same process as encrypt but with decrypt key */
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| 125 | #define wc_Des_EcbDecrypt wc_Des_EcbEncrypt
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| 126 | #define wc_Des3_EcbDecrypt wc_Des3_EcbEncrypt
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| 127 |
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| 128 | WOLFSSL_API int wc_Des3_SetKey(Des3* des, const byte* key,
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| 129 | const byte* iv,int dir);
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| 130 | WOLFSSL_API int wc_Des3_SetIV(Des3* des, const byte* iv);
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| 131 | WOLFSSL_API int wc_Des3_CbcEncrypt(Des3* des, byte* out,
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| 132 | const byte* in,word32 sz);
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| 133 | WOLFSSL_API int wc_Des3_CbcDecrypt(Des3* des, byte* out,
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| 134 | const byte* in,word32 sz);
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| 135 |
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| 136 | /* These are only required when using either:
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| 137 | static memory (WOLFSSL_STATIC_MEMORY) or asynchronous (WOLFSSL_ASYNC_CRYPT) */
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| 138 | WOLFSSL_API int wc_Des3Init(Des3*, void*, int);
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| 139 | WOLFSSL_API void wc_Des3Free(Des3*);
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| 140 |
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| 141 | #ifdef __cplusplus
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| 142 | } /* extern "C" */
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| 143 | #endif
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| 144 |
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| 145 | #endif /* NO_DES3 */
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| 146 | #endif /* WOLF_CRYPT_DES3_H */
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| 147 |
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