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/* hc128.h
*
* Copyright (C) 2006-2015 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef WOLF_CRYPT_HC128_H
#define WOLF_CRYPT_HC128_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_HC128
#ifdef __cplusplus
extern "C" {
#endif
enum {
HC128_ENC_TYPE = 6 /* cipher unique type */
};
/* HC-128 stream cipher */
typedef struct HC128 {
word32 T[1024]; /* P[i] = T[i]; Q[i] = T[1024 + i ]; */
word32 X[16];
word32 Y[16];
word32 counter1024; /* counter1024 = i mod 1024 at the ith step */
word32 key[8];
word32 iv[8];
} HC128;
WOLFSSL_API int wc_Hc128_Process(HC128*, byte*, const byte*, word32);
WOLFSSL_API int wc_Hc128_SetKey(HC128*, const byte* key, const byte* iv);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HAVE_HC128 */
#endif /* WOLF_CRYPT_HC128_H */
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