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| author | auth12 <[email protected]> | 2020-07-22 08:34:12 -0700 |
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| committer | auth12 <[email protected]> | 2020-07-22 08:34:12 -0700 |
| commit | 5015ddb9b1eee748efc24056e46f81888c975f7a (patch) | |
| tree | a810f6ee90f8bfe0e934fdd9142198e6b3862957 /wolfssl/wolfcrypt/poly1305.h | |
| download | wolfssl_windows-5015ddb9b1eee748efc24056e46f81888c975f7a.tar.xz wolfssl_windows-5015ddb9b1eee748efc24056e46f81888c975f7a.zip | |
Initial commit
Diffstat (limited to 'wolfssl/wolfcrypt/poly1305.h')
| -rw-r--r-- | wolfssl/wolfcrypt/poly1305.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/wolfssl/wolfcrypt/poly1305.h b/wolfssl/wolfcrypt/poly1305.h new file mode 100644 index 0000000..981ce49 --- /dev/null +++ b/wolfssl/wolfcrypt/poly1305.h @@ -0,0 +1,130 @@ +/* poly1305.h + * + * Copyright (C) 2006-2020 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 + */ + +/*! + \file wolfssl/wolfcrypt/poly1305.h +*/ + +#ifndef WOLF_CRYPT_POLY1305_H +#define WOLF_CRYPT_POLY1305_H + +#include <wolfssl/wolfcrypt/types.h> + +#ifdef HAVE_POLY1305 + +#ifdef __cplusplus + extern "C" { +#endif + +/* auto detect between 32bit / 64bit */ +#if defined(__SIZEOF_INT128__) && defined(__LP64__) +#define WC_HAS_SIZEOF_INT128_64BIT +#endif + +#if defined(_MSC_VER) && defined(_M_X64) +#define WC_HAS_MSVC_64BIT +#endif + +#if (defined(__GNUC__) && defined(__LP64__) && \ + ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)))) +#define WC_HAS_GCC_4_4_64BIT +#endif + +#ifdef USE_INTEL_SPEEDUP +#elif (defined(WC_HAS_SIZEOF_INT128_64BIT) || defined(WC_HAS_MSVC_64BIT) || \ + defined(WC_HAS_GCC_4_4_64BIT)) +#define POLY130564 +#else +#define POLY130532 +#endif + +enum { + POLY1305 = 7, + POLY1305_BLOCK_SIZE = 16, + POLY1305_DIGEST_SIZE = 16, +}; + +#define WC_POLY1305_PAD_SZ 16 +#define WC_POLY1305_MAC_SZ 16 + +/* Poly1305 state */ +typedef struct Poly1305 { +#ifdef USE_INTEL_SPEEDUP + word64 r[3]; + word64 h[3]; + word64 pad[2]; + word64 hh[20]; + word32 r1[8]; + word32 r2[8]; + word32 r3[8]; + word32 r4[8]; + word64 hm[16]; + unsigned char buffer[8*POLY1305_BLOCK_SIZE]; + size_t leftover; + unsigned char finished; + unsigned char started; +#else +#if defined(WOLFSSL_ARMASM) && defined(__aarch64__) + ALIGN128 word32 r[5]; + ALIGN128 word32 r_2[5]; // r^2 + ALIGN128 word32 r_4[5]; // r^4 + ALIGN128 word32 h[5]; + word32 pad[4]; + word64 leftover; +#else +#if defined(POLY130564) + word64 r[3]; + word64 h[3]; + word64 pad[2]; +#else + word32 r[5]; + word32 h[5]; + word32 pad[4]; +#endif + size_t leftover; +#endif /* WOLFSSL_ARMASM */ + unsigned char buffer[POLY1305_BLOCK_SIZE]; + unsigned char finished; +#endif +} Poly1305; + +/* does init */ + +WOLFSSL_API int wc_Poly1305SetKey(Poly1305* poly1305, const byte* key, + word32 kySz); +WOLFSSL_API int wc_Poly1305Update(Poly1305* poly1305, const byte*, word32); +WOLFSSL_API int wc_Poly1305Final(Poly1305* poly1305, byte* tag); + +/* AEAD Functions */ +WOLFSSL_API int wc_Poly1305_Pad(Poly1305* ctx, word32 lenToPad); +WOLFSSL_API int wc_Poly1305_EncodeSizes(Poly1305* ctx, word32 aadSz, word32 dataSz); +WOLFSSL_API int wc_Poly1305_MAC(Poly1305* ctx, byte* additional, word32 addSz, + byte* input, word32 sz, byte* tag, word32 tagSz); + +void poly1305_block(Poly1305* ctx, const unsigned char *m); +void poly1305_blocks(Poly1305* ctx, const unsigned char *m, + size_t bytes); +#ifdef __cplusplus + } /* extern "C" */ +#endif + +#endif /* HAVE_POLY1305 */ +#endif /* WOLF_CRYPT_POLY1305_H */ |