CyaSSL is an SSL library for devices like mbed.
Dependents: cyassl-client Sync
random.h
00001 /* random.h 00002 * 00003 * Copyright (C) 2006-2009 Sawtooth Consulting Ltd. 00004 * 00005 * This file is part of CyaSSL. 00006 * 00007 * CyaSSL 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 * CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 00020 */ 00021 00022 00023 #ifndef CTAO_CRYPT_RANDOM_H 00024 #define CTAO_CRYPT_RANDOM_H 00025 00026 #include "arc4.h" 00027 00028 #ifdef __cplusplus 00029 extern "C" { 00030 #endif 00031 00032 00033 #if defined(USE_WINDOWS_API) 00034 #if defined(_WIN64) 00035 typedef unsigned __int64 ProviderHandle; 00036 /* type HCRYPTPROV, avoid #include <windows.h> */ 00037 #else 00038 typedef unsigned long ProviderHandle; 00039 #endif 00040 #endif 00041 00042 00043 /* OS specific seeder */ 00044 typedef struct OS_Seed { 00045 #if defined(USE_WINDOWS_API) 00046 ProviderHandle handle; 00047 #else 00048 int fd; 00049 #endif 00050 } OS_Seed; 00051 00052 int GenerateSeed(OS_Seed* os, byte* seed, word32 sz); 00053 00054 00055 /* secure Random Nnumber Generator */ 00056 typedef struct RNG { 00057 OS_Seed seed; 00058 Arc4 cipher; 00059 } RNG; 00060 00061 00062 int InitRng(RNG*); 00063 void RNG_GenerateBlock(RNG*, byte*, word32 sz); 00064 byte RNG_GenerateByte(RNG*); 00065 00066 00067 #ifdef __cplusplus 00068 } /* extern "C" */ 00069 #endif 00070 00071 #endif /* CTAO_CRYPT_RANDOM_H */ 00072
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