wolf SSL / wolfSSL

wolfSSL SSL/TLS library, support up to TLS1.3

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wolfssl/wolfcrypt/random.h@4:1b0d80432c79, 2016-04-28 (annotated)

Committer:
wolfSSL
Date:
Thu Apr 28 00:57:21 2016 +0000
Revision:
4:1b0d80432c79
wolfSSL 3.9.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 4:1b0d80432c79 1 /* random.h
wolfSSL 4:1b0d80432c79 2 *
wolfSSL 4:1b0d80432c79 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 4:1b0d80432c79 4 *
wolfSSL 4:1b0d80432c79 5 * This file is part of wolfSSL.
wolfSSL 4:1b0d80432c79 6 *
wolfSSL 4:1b0d80432c79 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 4:1b0d80432c79 8 * it under the terms of the GNU General Public License as published by
wolfSSL 4:1b0d80432c79 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 4:1b0d80432c79 10 * (at your option) any later version.
wolfSSL 4:1b0d80432c79 11 *
wolfSSL 4:1b0d80432c79 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 4:1b0d80432c79 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 4:1b0d80432c79 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 4:1b0d80432c79 15 * GNU General Public License for more details.
wolfSSL 4:1b0d80432c79 16 *
wolfSSL 4:1b0d80432c79 17 * You should have received a copy of the GNU General Public License
wolfSSL 4:1b0d80432c79 18 * along with this program; if not, write to the Free Software
wolfSSL 4:1b0d80432c79 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 4:1b0d80432c79 20 */
wolfSSL 4:1b0d80432c79 21
wolfSSL 4:1b0d80432c79 22
wolfSSL 4:1b0d80432c79 23
wolfSSL 4:1b0d80432c79 24 #ifndef WOLF_CRYPT_RANDOM_H
wolfSSL 4:1b0d80432c79 25 #define WOLF_CRYPT_RANDOM_H
wolfSSL 4:1b0d80432c79 26
wolfSSL 4:1b0d80432c79 27 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 4:1b0d80432c79 28
wolfSSL 4:1b0d80432c79 29 #ifdef HAVE_FIPS
wolfSSL 4:1b0d80432c79 30 /* for fips @wc_fips */
wolfSSL 4:1b0d80432c79 31 #include <cyassl/ctaocrypt/random.h>
wolfSSL 4:1b0d80432c79 32 #endif
wolfSSL 4:1b0d80432c79 33
wolfSSL 4:1b0d80432c79 34 #ifdef __cplusplus
wolfSSL 4:1b0d80432c79 35 extern "C" {
wolfSSL 4:1b0d80432c79 36 #endif
wolfSSL 4:1b0d80432c79 37
wolfSSL 4:1b0d80432c79 38 #ifndef HAVE_FIPS /* avoid redefining structs and macros */
wolfSSL 4:1b0d80432c79 39 #if defined(WOLFSSL_FORCE_RC4_DRBG) && defined(NO_RC4)
wolfSSL 4:1b0d80432c79 40 #error Cannot have WOLFSSL_FORCE_RC4_DRBG and NO_RC4 defined.
wolfSSL 4:1b0d80432c79 41 #endif /* WOLFSSL_FORCE_RC4_DRBG && NO_RC4 */
wolfSSL 4:1b0d80432c79 42 #if defined(HAVE_HASHDRBG) || defined(NO_RC4)
wolfSSL 4:1b0d80432c79 43 #ifdef NO_SHA256
wolfSSL 4:1b0d80432c79 44 #error "Hash DRBG requires SHA-256."
wolfSSL 4:1b0d80432c79 45 #endif /* NO_SHA256 */
wolfSSL 4:1b0d80432c79 46
wolfSSL 4:1b0d80432c79 47 #include <wolfssl/wolfcrypt/sha256.h>
wolfSSL 4:1b0d80432c79 48 #else /* HAVE_HASHDRBG || NO_RC4 */
wolfSSL 4:1b0d80432c79 49 #include <wolfssl/wolfcrypt/arc4.h>
wolfSSL 4:1b0d80432c79 50 #endif /* HAVE_HASHDRBG || NO_RC4 */
wolfSSL 4:1b0d80432c79 51
wolfSSL 4:1b0d80432c79 52 #if defined(USE_WINDOWS_API)
wolfSSL 4:1b0d80432c79 53 #if defined(_WIN64)
wolfSSL 4:1b0d80432c79 54 typedef unsigned __int64 ProviderHandle;
wolfSSL 4:1b0d80432c79 55 /* type HCRYPTPROV, avoid #include <windows.h> */
wolfSSL 4:1b0d80432c79 56 #else
wolfSSL 4:1b0d80432c79 57 typedef unsigned long ProviderHandle;
wolfSSL 4:1b0d80432c79 58 #endif
wolfSSL 4:1b0d80432c79 59 #endif
wolfSSL 4:1b0d80432c79 60
wolfSSL 4:1b0d80432c79 61
wolfSSL 4:1b0d80432c79 62 /* OS specific seeder */
wolfSSL 4:1b0d80432c79 63 typedef struct OS_Seed {
wolfSSL 4:1b0d80432c79 64 #if defined(USE_WINDOWS_API)
wolfSSL 4:1b0d80432c79 65 ProviderHandle handle;
wolfSSL 4:1b0d80432c79 66 #else
wolfSSL 4:1b0d80432c79 67 int fd;
wolfSSL 4:1b0d80432c79 68 #endif
wolfSSL 4:1b0d80432c79 69 } OS_Seed;
wolfSSL 4:1b0d80432c79 70
wolfSSL 4:1b0d80432c79 71
wolfSSL 4:1b0d80432c79 72 #if (defined(HAVE_HASHDRBG) || defined(NO_RC4)) && !defined(CUSTOM_RAND_GENERATE_BLOCK)
wolfSSL 4:1b0d80432c79 73
wolfSSL 4:1b0d80432c79 74 #define DRBG_SEED_LEN (440/8)
wolfSSL 4:1b0d80432c79 75
wolfSSL 4:1b0d80432c79 76
wolfSSL 4:1b0d80432c79 77 struct DRBG; /* Private DRBG state */
wolfSSL 4:1b0d80432c79 78
wolfSSL 4:1b0d80432c79 79
wolfSSL 4:1b0d80432c79 80 /* Hash-based Deterministic Random Bit Generator */
wolfSSL 4:1b0d80432c79 81 typedef struct WC_RNG {
wolfSSL 4:1b0d80432c79 82 struct DRBG* drbg;
wolfSSL 4:1b0d80432c79 83 OS_Seed seed;
wolfSSL 4:1b0d80432c79 84 byte status;
wolfSSL 4:1b0d80432c79 85 } WC_RNG;
wolfSSL 4:1b0d80432c79 86
wolfSSL 4:1b0d80432c79 87
wolfSSL 4:1b0d80432c79 88
wolfSSL 4:1b0d80432c79 89 #else /* (HAVE_HASHDRBG || NO_RC4) && !CUSTOM_RAND_GENERATE_BLOCK */
wolfSSL 4:1b0d80432c79 90
wolfSSL 4:1b0d80432c79 91 #define WOLFSSL_RNG_CAVIUM_MAGIC 0xBEEF0004
wolfSSL 4:1b0d80432c79 92
wolfSSL 4:1b0d80432c79 93 /* secure Random Number Generator */
wolfSSL 4:1b0d80432c79 94
wolfSSL 4:1b0d80432c79 95
wolfSSL 4:1b0d80432c79 96 typedef struct WC_RNG {
wolfSSL 4:1b0d80432c79 97 OS_Seed seed;
wolfSSL 4:1b0d80432c79 98 #ifndef NO_RC4
wolfSSL 4:1b0d80432c79 99 Arc4 cipher;
wolfSSL 4:1b0d80432c79 100 #endif
wolfSSL 4:1b0d80432c79 101 #ifdef HAVE_CAVIUM
wolfSSL 4:1b0d80432c79 102 int devId; /* nitrox device id */
wolfSSL 4:1b0d80432c79 103 word32 magic; /* using cavium magic */
wolfSSL 4:1b0d80432c79 104 #endif
wolfSSL 4:1b0d80432c79 105 } WC_RNG;
wolfSSL 4:1b0d80432c79 106
wolfSSL 4:1b0d80432c79 107
wolfSSL 4:1b0d80432c79 108
wolfSSL 4:1b0d80432c79 109 #endif /* (HAVE_HASHDRBG || NO_RC4) && !CUSTOM_RAND_GENERATE_BLOCK */
wolfSSL 4:1b0d80432c79 110 #endif /* HAVE_FIPS */
wolfSSL 4:1b0d80432c79 111
wolfSSL 4:1b0d80432c79 112 /* NO_OLD_RNGNAME removes RNG struct name to prevent possible type conflicts,
wolfSSL 4:1b0d80432c79 113 * can't be used with CTaoCrypt FIPS */
wolfSSL 4:1b0d80432c79 114 #if !defined(NO_OLD_RNGNAME) && !defined(HAVE_FIPS)
wolfSSL 4:1b0d80432c79 115 #define RNG WC_RNG
wolfSSL 4:1b0d80432c79 116 #endif
wolfSSL 4:1b0d80432c79 117
wolfSSL 4:1b0d80432c79 118 WOLFSSL_LOCAL
wolfSSL 4:1b0d80432c79 119 int wc_GenerateSeed(OS_Seed* os, byte* seed, word32 sz);
wolfSSL 4:1b0d80432c79 120
wolfSSL 4:1b0d80432c79 121 #if defined(HAVE_HASHDRBG) || defined(NO_RC4)
wolfSSL 4:1b0d80432c79 122
wolfSSL 4:1b0d80432c79 123 #ifdef HAVE_CAVIUM
wolfSSL 4:1b0d80432c79 124 WOLFSSL_API int wc_InitRngCavium(WC_RNG*, int);
wolfSSL 4:1b0d80432c79 125 #endif
wolfSSL 4:1b0d80432c79 126
wolfSSL 4:1b0d80432c79 127 #endif /* HAVE_HASH_DRBG || NO_RC4 */
wolfSSL 4:1b0d80432c79 128
wolfSSL 4:1b0d80432c79 129
wolfSSL 4:1b0d80432c79 130 WOLFSSL_API int wc_InitRng(WC_RNG*);
wolfSSL 4:1b0d80432c79 131 WOLFSSL_API int wc_RNG_GenerateBlock(WC_RNG*, byte*, word32 sz);
wolfSSL 4:1b0d80432c79 132 WOLFSSL_API int wc_RNG_GenerateByte(WC_RNG*, byte*);
wolfSSL 4:1b0d80432c79 133 WOLFSSL_API int wc_FreeRng(WC_RNG*);
wolfSSL 4:1b0d80432c79 134
wolfSSL 4:1b0d80432c79 135
wolfSSL 4:1b0d80432c79 136 #if defined(HAVE_HASHDRBG) || defined(NO_RC4)
wolfSSL 4:1b0d80432c79 137 WOLFSSL_API int wc_RNG_HealthTest(int reseed,
wolfSSL 4:1b0d80432c79 138 const byte* entropyA, word32 entropyASz,
wolfSSL 4:1b0d80432c79 139 const byte* entropyB, word32 entropyBSz,
wolfSSL 4:1b0d80432c79 140 byte* output, word32 outputSz);
wolfSSL 4:1b0d80432c79 141 #endif /* HAVE_HASHDRBG || NO_RC4 */
wolfSSL 4:1b0d80432c79 142
wolfSSL 4:1b0d80432c79 143 #ifdef __cplusplus
wolfSSL 4:1b0d80432c79 144 } /* extern "C" */
wolfSSL 4:1b0d80432c79 145 #endif
wolfSSL 4:1b0d80432c79 146
wolfSSL 4:1b0d80432c79 147 #endif /* WOLF_CRYPT_RANDOM_H */
wolfSSL 4:1b0d80432c79 148
wolfSSL 4:1b0d80432c79 149