| /* random.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_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(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(WOLFSSL_MDK_ARM) |
| #undef RNG |
| #define RNG wolfSSL_RNG /* for avoiding name conflict in "stm32f2xx.h" */ |
| #endif |
| |
| |
| #if defined(HAVE_HASHDRBG) || defined(NO_RC4) |
| |
| |
| #define DRBG_SEED_LEN (440/8) |
| |
| |
| struct DRBG; /* Private DRBG state */ |
| |
| |
| /* Hash-based Deterministic Random Bit Generator */ |
| typedef struct RNG { |
| struct DRBG* drbg; |
| OS_Seed seed; |
| byte status; |
| } RNG; |
| |
| |
| #else /* HAVE_HASHDRBG || NO_RC4 */ |
| |
| |
| #define WOLFSSL_RNG_CAVIUM_MAGIC 0xBEEF0004 |
| |
| /* secure Random Number Generator */ |
| |
| |
| typedef struct RNG { |
| OS_Seed seed; |
| Arc4 cipher; |
| #ifdef HAVE_CAVIUM |
| int devId; /* nitrox device id */ |
| word32 magic; /* using cavium magic */ |
| #endif |
| } RNG; |
| |
| |
| #endif /* HAVE_HASH_DRBG || NO_RC4 */ |
| |
| #endif /* HAVE_FIPS */ |
| |
| 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(RNG*, int); |
| #endif |
| |
| #endif /* HAVE_HASH_DRBG || NO_RC4 */ |
| |
| |
| WOLFSSL_API int wc_InitRng(RNG*); |
| WOLFSSL_API int wc_RNG_GenerateBlock(RNG*, byte*, word32 sz); |
| WOLFSSL_API int wc_RNG_GenerateByte(RNG*, byte*); |
| WOLFSSL_API int wc_FreeRng(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 */ |
| |