wolf SSL / wolfSSL-TLS13-Beta

wolfSSL 3.11.1 for TLS1.3 beta

Fork of wolfSSL by wolf SSL

wolfssl/wolfcrypt/poly1305.h@7:481bce714567, 2017-05-02 (annotated)

Committer:
wolfSSL
Date:
Tue May 02 08:44:47 2017 +0000
Revision:
7:481bce714567
wolfSSL3.10.2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 7:481bce714567 1 /* poly1305.h
wolfSSL 7:481bce714567 2 *
wolfSSL 7:481bce714567 3 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 7:481bce714567 4 *
wolfSSL 7:481bce714567 5 * This file is part of wolfSSL.
wolfSSL 7:481bce714567 6 *
wolfSSL 7:481bce714567 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 7:481bce714567 8 * it under the terms of the GNU General Public License as published by
wolfSSL 7:481bce714567 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 7:481bce714567 10 * (at your option) any later version.
wolfSSL 7:481bce714567 11 *
wolfSSL 7:481bce714567 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 7:481bce714567 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 7:481bce714567 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 7:481bce714567 15 * GNU General Public License for more details.
wolfSSL 7:481bce714567 16 *
wolfSSL 7:481bce714567 17 * You should have received a copy of the GNU General Public License
wolfSSL 7:481bce714567 18 * along with this program; if not, write to the Free Software
wolfSSL 7:481bce714567 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 7:481bce714567 20 */
wolfSSL 7:481bce714567 21
wolfSSL 7:481bce714567 22
wolfSSL 7:481bce714567 23 #ifndef WOLF_CRYPT_POLY1305_H
wolfSSL 7:481bce714567 24 #define WOLF_CRYPT_POLY1305_H
wolfSSL 7:481bce714567 25
wolfSSL 7:481bce714567 26 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 7:481bce714567 27
wolfSSL 7:481bce714567 28 #ifdef HAVE_POLY1305
wolfSSL 7:481bce714567 29
wolfSSL 7:481bce714567 30 #ifdef __cplusplus
wolfSSL 7:481bce714567 31 extern "C" {
wolfSSL 7:481bce714567 32 #endif
wolfSSL 7:481bce714567 33
wolfSSL 7:481bce714567 34 /* auto detect between 32bit / 64bit */
wolfSSL 7:481bce714567 35 #if defined(__SIZEOF_INT128__) && defined(__LP64__)
wolfSSL 7:481bce714567 36 #define WC_HAS_SIZEOF_INT128_64BIT
wolfSSL 7:481bce714567 37 #endif
wolfSSL 7:481bce714567 38
wolfSSL 7:481bce714567 39 #if defined(_MSC_VER) && defined(_M_X64)
wolfSSL 7:481bce714567 40 #define WC_HAS_MSVC_64BIT
wolfSSL 7:481bce714567 41 #endif
wolfSSL 7:481bce714567 42
wolfSSL 7:481bce714567 43 #if (defined(__GNUC__) && defined(__LP64__) && \
wolfSSL 7:481bce714567 44 ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4))))
wolfSSL 7:481bce714567 45 #define WC_HAS_GCC_4_4_64BIT
wolfSSL 7:481bce714567 46 #endif
wolfSSL 7:481bce714567 47
wolfSSL 7:481bce714567 48 #if (defined(WC_HAS_SIZEOF_INT128_64BIT) || defined(WC_HAS_MSVC_64BIT) || \
wolfSSL 7:481bce714567 49 defined(WC_HAS_GCC_4_4_64BIT))
wolfSSL 7:481bce714567 50 #define POLY130564
wolfSSL 7:481bce714567 51 #else
wolfSSL 7:481bce714567 52 #define POLY130532
wolfSSL 7:481bce714567 53 #endif
wolfSSL 7:481bce714567 54
wolfSSL 7:481bce714567 55 enum {
wolfSSL 7:481bce714567 56 POLY1305 = 7,
wolfSSL 7:481bce714567 57 POLY1305_BLOCK_SIZE = 16,
wolfSSL 7:481bce714567 58 POLY1305_DIGEST_SIZE = 16,
wolfSSL 7:481bce714567 59 };
wolfSSL 7:481bce714567 60
wolfSSL 7:481bce714567 61 #define WC_POLY1305_PAD_SZ 16
wolfSSL 7:481bce714567 62 #define WC_POLY1305_MAC_SZ 16
wolfSSL 7:481bce714567 63
wolfSSL 7:481bce714567 64 /* Poly1305 state */
wolfSSL 7:481bce714567 65 typedef struct Poly1305 {
wolfSSL 7:481bce714567 66 #if defined(POLY130564)
wolfSSL 7:481bce714567 67 word64 r[3];
wolfSSL 7:481bce714567 68 word64 h[3];
wolfSSL 7:481bce714567 69 word64 pad[2];
wolfSSL 7:481bce714567 70 #else
wolfSSL 7:481bce714567 71 word32 r[5];
wolfSSL 7:481bce714567 72 word32 h[5];
wolfSSL 7:481bce714567 73 word32 pad[4];
wolfSSL 7:481bce714567 74 #endif
wolfSSL 7:481bce714567 75 size_t leftover;
wolfSSL 7:481bce714567 76 unsigned char buffer[POLY1305_BLOCK_SIZE];
wolfSSL 7:481bce714567 77 unsigned char final;
wolfSSL 7:481bce714567 78 } Poly1305;
wolfSSL 7:481bce714567 79
wolfSSL 7:481bce714567 80
wolfSSL 7:481bce714567 81 /* does init */
wolfSSL 7:481bce714567 82
wolfSSL 7:481bce714567 83 WOLFSSL_API int wc_Poly1305SetKey(Poly1305* poly1305, const byte* key, word32 kySz);
wolfSSL 7:481bce714567 84 WOLFSSL_API int wc_Poly1305Update(Poly1305* poly1305, const byte*, word32);
wolfSSL 7:481bce714567 85 WOLFSSL_API int wc_Poly1305Final(Poly1305* poly1305, byte* tag);
wolfSSL 7:481bce714567 86 WOLFSSL_API int wc_Poly1305_MAC(Poly1305* ctx, byte* additional, word32 addSz,
wolfSSL 7:481bce714567 87 byte* input, word32 sz, byte* tag, word32 tagSz);
wolfSSL 7:481bce714567 88 #ifdef __cplusplus
wolfSSL 7:481bce714567 89 } /* extern "C" */
wolfSSL 7:481bce714567 90 #endif
wolfSSL 7:481bce714567 91
wolfSSL 7:481bce714567 92 #endif /* HAVE_POLY1305 */
wolfSSL 7:481bce714567 93 #endif /* WOLF_CRYPT_POLY1305_H */
wolfSSL 7:481bce714567 94
wolfSSL 7:481bce714567 95