wolfSSL SSL/TLS library, support up to TLS1.3
Dependents: CyaSSL-Twitter-OAuth4Tw Example-client-tls-cert TwitterReader TweetTest ... more
wolfssl/wolfcrypt/random.h
- Committer:
- wolfSSL
- Date:
- 2016-04-28
- Revision:
- 4:1b0d80432c79
File content as of revision 4:1b0d80432c79:
/* random.h * * Copyright (C) 2006-2016 wolfSSL Inc. * * This file is part of wolfSSL. * * 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 02110-1335, USA */ #ifndef WOLF_CRYPT_RANDOM_H #define WOLF_CRYPT_RANDOM_H #include <wolfssl/wolfcrypt/types.h> #ifdef HAVE_FIPS /* for fips @wc_fips */ #include <cyassl/ctaocrypt/random.h> #endif #ifdef __cplusplus extern "C" { #endif #ifndef HAVE_FIPS /* avoid redefining structs and macros */ #if defined(WOLFSSL_FORCE_RC4_DRBG) && defined(NO_RC4) #error Cannot have WOLFSSL_FORCE_RC4_DRBG and NO_RC4 defined. #endif /* WOLFSSL_FORCE_RC4_DRBG && NO_RC4 */ #if defined(HAVE_HASHDRBG) || defined(NO_RC4) #ifdef NO_SHA256 #error "Hash DRBG requires SHA-256." #endif /* NO_SHA256 */ #include <wolfssl/wolfcrypt/sha256.h> #else /* HAVE_HASHDRBG || NO_RC4 */ #include <wolfssl/wolfcrypt/arc4.h> #endif /* HAVE_HASHDRBG || NO_RC4 */ #if defined(USE_WINDOWS_API) #if defined(_WIN64) typedef unsigned __int64 ProviderHandle; /* type HCRYPTPROV, avoid #include <windows.h> */ #else typedef unsigned long ProviderHandle; #endif #endif /* OS specific seeder */ typedef struct OS_Seed { #if defined(USE_WINDOWS_API) ProviderHandle handle; #else int fd; #endif } OS_Seed; #if (defined(HAVE_HASHDRBG) || defined(NO_RC4)) && !defined(CUSTOM_RAND_GENERATE_BLOCK) #define DRBG_SEED_LEN (440/8) struct DRBG; /* Private DRBG state */ /* Hash-based Deterministic Random Bit Generator */ typedef struct WC_RNG { struct DRBG* drbg; OS_Seed seed; byte status; } WC_RNG; #else /* (HAVE_HASHDRBG || NO_RC4) && !CUSTOM_RAND_GENERATE_BLOCK */ #define WOLFSSL_RNG_CAVIUM_MAGIC 0xBEEF0004 /* secure Random Number Generator */ typedef struct WC_RNG { OS_Seed seed; #ifndef NO_RC4 Arc4 cipher; #endif #ifdef HAVE_CAVIUM int devId; /* nitrox device id */ word32 magic; /* using cavium magic */ #endif } WC_RNG; #endif /* (HAVE_HASHDRBG || NO_RC4) && !CUSTOM_RAND_GENERATE_BLOCK */ #endif /* HAVE_FIPS */ /* NO_OLD_RNGNAME removes RNG struct name to prevent possible type conflicts, * can't be used with CTaoCrypt FIPS */ #if !defined(NO_OLD_RNGNAME) && !defined(HAVE_FIPS) #define RNG WC_RNG #endif WOLFSSL_LOCAL int wc_GenerateSeed(OS_Seed* os, byte* seed, word32 sz); #if defined(HAVE_HASHDRBG) || defined(NO_RC4) #ifdef HAVE_CAVIUM WOLFSSL_API int wc_InitRngCavium(WC_RNG*, int); #endif #endif /* HAVE_HASH_DRBG || NO_RC4 */ WOLFSSL_API int wc_InitRng(WC_RNG*); WOLFSSL_API int wc_RNG_GenerateBlock(WC_RNG*, byte*, word32 sz); WOLFSSL_API int wc_RNG_GenerateByte(WC_RNG*, byte*); WOLFSSL_API int wc_FreeRng(WC_RNG*); #if defined(HAVE_HASHDRBG) || defined(NO_RC4) WOLFSSL_API int wc_RNG_HealthTest(int reseed, const byte* entropyA, word32 entropyASz, const byte* entropyB, word32 entropyBSz, byte* output, word32 outputSz); #endif /* HAVE_HASHDRBG || NO_RC4 */ #ifdef __cplusplus } /* extern "C" */ #endif #endif /* WOLF_CRYPT_RANDOM_H */