hc128.h

00001 /* hc128.h
00002  *
00003  * Copyright (C) 2006-2017 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     \file wolfssl/wolfcrypt/hc128.h
00024 */
00025 
00026 
00027 #ifndef WOLF_CRYPT_HC128_H
00028 #define WOLF_CRYPT_HC128_H
00029 
00030 #include <wolfcrypt/types.h>
00031 
00032 #ifndef NO_HC128
00033 
00034 #ifdef __cplusplus
00035     extern "C" {
00036 #endif
00037 
00038 enum {
00039     HC128_ENC_TYPE =  WC_CIPHER_HC128,     /* cipher unique type */
00040 };
00041 
00042 /* HC-128 stream cipher */
00043 typedef struct HC128 {
00044     word32 T[1024];             /* P[i] = T[i];  Q[i] = T[1024 + i ]; */
00045     word32 X[16];
00046     word32 Y[16];
00047     word32 counter1024;         /* counter1024 = i mod 1024 at the ith step */
00048     word32 key[8];
00049     word32 iv[8];
00050 #ifdef XSTREAM_ALIGN
00051     void*  heap;  /* heap hint, currently XMALLOC only used with aligning */
00052 #endif
00053 } HC128;
00054 
00055 
00056 WOLFSSL_API int wc_Hc128_Process(HC128*, byte*, const byte*, word32);
00057 WOLFSSL_API int wc_Hc128_SetKey(HC128*, const byte* key, const byte* iv);
00058 
00059 WOLFSSL_LOCAL int wc_Hc128_SetHeap(HC128* ctx, void* heap);
00060 
00061 #ifdef __cplusplus
00062     } /* extern "C" */
00063 #endif
00064 
00065 #endif /* HAVE_HC128 */
00066 #endif /* WOLF_CRYPT_HC128_H */
00067 
00068