69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/* rc2.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of 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 02110-1335, USA
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*/
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#ifndef WOLF_CRYPT_RC2_H
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#define WOLF_CRYPT_RC2_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifdef WC_RC2
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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RC2_MAX_KEY_SIZE = 128, /* max effective key size, octets */
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RC2_BLOCK_SIZE = 8
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};
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/* RC2 encryption and decryption */
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typedef struct Rc2 {
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ALIGN16 word16 key[RC2_MAX_KEY_SIZE/2];
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ALIGN16 word32 reg[RC2_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
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ALIGN16 word32 tmp[RC2_BLOCK_SIZE / sizeof(word32)]; /* same */
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word32 keylen; /* key length, octets */
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word32 bits; /* effective key length, bits */
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} Rc2;
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WOLFSSL_API int wc_Rc2SetKey(Rc2* rc2, const byte* key, word32 length,
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const byte* iv, word32 bits);
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WOLFSSL_API int wc_Rc2SetIV(Rc2* rc2, const byte* iv);
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/* RC2-ECB */
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WOLFSSL_API int wc_Rc2EcbEncrypt(Rc2* rc2, byte* out,
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const byte* in, word32 sz);
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WOLFSSL_API int wc_Rc2EcbDecrypt(Rc2* rc2, byte* out,
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const byte* in, word32 sz);
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/* RC2-CBC */
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WOLFSSL_API int wc_Rc2CbcEncrypt(Rc2* rc2, byte* out,
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const byte* in, word32 sz);
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WOLFSSL_API int wc_Rc2CbcDecrypt(Rc2* rc2, byte* out,
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const byte* in, word32 sz);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* WC_RC2 */
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#endif /* WOLF_CRYPT_RC2_H */
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