hc128.h

00001 /* hc128.h
00002  *
00003  * Copyright (C) 2006-2016 wolfSSL Inc.
00004  *
00005  * This file is part of wolfSSL.
00006  *
00007  * wolfSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * wolfSSL is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
00020  */
00021 
00022 
00023 #ifndef WOLF_CRYPT_HC128_H
00024 #define WOLF_CRYPT_HC128_H
00025 
00026 #include <wolfssl/wolfcrypt/types.h>
00027 
00028 #ifndef NO_HC128
00029 
00030 #ifdef __cplusplus
00031     extern "C" {
00032 #endif
00033 
00034 enum {
00035     HC128_ENC_TYPE    =  6    /* cipher unique type */
00036 };
00037 
00038 /* HC-128 stream cipher */
00039 typedef struct HC128 {
00040     word32 T[1024];             /* P[i] = T[i];  Q[i] = T[1024 + i ]; */
00041     word32 X[16];
00042     word32 Y[16];
00043     word32 counter1024;         /* counter1024 = i mod 1024 at the ith step */
00044     word32 key[8];
00045     word32 iv[8];
00046 } HC128;
00047 
00048 
00049 WOLFSSL_API int wc_Hc128_Process(HC128*, byte*, const byte*, word32);
00050 WOLFSSL_API int wc_Hc128_SetKey(HC128*, const byte* key, const byte* iv);
00051 
00052 
00053 #ifdef __cplusplus
00054     } /* extern "C" */
00055 #endif
00056 
00057 #endif /* HAVE_HC128 */
00058 #endif /* WOLF_CRYPT_HC128_H */
00059 
00060