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107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/* des.h
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*
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* Copyright (C) 2015 wolfSSL Inc.
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*
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* This file is part of wolfSSL. (formerly known as wolfSSL)
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* des.h defines mini des openssl compatibility layer
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*
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*/
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#ifndef WOLFSSL_DES_H_
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#define WOLFSSL_DES_H_
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#include <wolfssl/wolfcrypt/settings.h>
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#ifndef NO_DES3
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#ifdef WOLFSSL_PREFIX
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#include "prefix_des.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef unsigned char WOLFSSL_DES_cblock[8];
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typedef /* const */ WOLFSSL_DES_cblock WOLFSSL_const_DES_cblock;
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typedef WOLFSSL_DES_cblock WOLFSSL_DES_key_schedule;
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enum {
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DES_ENCRYPT = 1,
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DES_DECRYPT = 0
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};
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WOLFSSL_API void wolfSSL_DES_set_key_unchecked(WOLFSSL_const_DES_cblock*,
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WOLFSSL_DES_key_schedule*);
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WOLFSSL_API int wolfSSL_DES_key_sched(WOLFSSL_const_DES_cblock* key,
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WOLFSSL_DES_key_schedule* schedule);
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WOLFSSL_API void wolfSSL_DES_cbc_encrypt(const unsigned char* input,
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unsigned char* output, long length,
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WOLFSSL_DES_key_schedule* schedule, WOLFSSL_DES_cblock* ivec,
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int enc);
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WOLFSSL_API void wolfSSL_DES_ncbc_encrypt(const unsigned char* input,
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unsigned char* output, long length,
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WOLFSSL_DES_key_schedule* schedule,
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WOLFSSL_DES_cblock* ivec, int enc);
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WOLFSSL_API void wolfSSL_DES_set_odd_parity(WOLFSSL_DES_cblock*);
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WOLFSSL_API void wolfSSL_DES_ecb_encrypt(WOLFSSL_DES_cblock*, WOLFSSL_DES_cblock*,
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WOLFSSL_DES_key_schedule*, int);
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typedef WOLFSSL_DES_cblock DES_cblock;
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typedef WOLFSSL_const_DES_cblock const_DES_cblock;
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typedef WOLFSSL_DES_key_schedule DES_key_schedule;
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#define DES_set_key_unchecked wolfSSL_DES_set_key_unchecked
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#define DES_key_sched wolfSSL_DES_key_sched
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#define DES_cbc_encrypt wolfSSL_DES_cbc_encrypt
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#define DES_ncbc_encrypt wolfSSL_DES_ncbc_encrypt
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#define DES_set_odd_parity wolfSSL_DES_set_odd_parity
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#define DES_ecb_encrypt wolfSSL_DES_ecb_encrypt
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#define DES_ede3_cbc_encrypt(input, output, sz, ks1, ks2, ks3, ivec, enc) \
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do { \
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Des3 des; \
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byte key[24];/* EDE uses 24 size key */ \
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memcpy(key, (ks1), DES_BLOCK_SIZE); \
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memcpy(&key[DES_BLOCK_SIZE], (ks2), DES_BLOCK_SIZE); \
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memcpy(&key[DES_BLOCK_SIZE * 2], (ks3), DES_BLOCK_SIZE); \
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if (enc) { \
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wc_Des3_SetKey(&des, key, (const byte*)(ivec), DES_ENCRYPTION); \
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wc_Des3_CbcEncrypt(&des, (output), (input), (sz)); \
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} \
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else { \
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wc_Des3_SetKey(&des, key, (const byte*)(ivec), DES_ENCRYPTION); \
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wc_Des3_CbcDecrypt(&des, (output), (input), (sz)); \
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} \
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} while(0)
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* NO_DES3 */
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#endif /* WOLFSSL_DES_H_ */
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