/usr/include/wolfssl/wolfcrypt/poly1305.h is in libwolfssl-dev 3.13.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | /* poly1305.h
*
* Copyright (C) 2006-2017 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_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[14];
word32 r0[8];
word32 r1[8];
word32 r2[8];
word32 r3[8];
word32 r4[8];
word32* rp[4];
word64 hibit[4];
size_t leftover;
unsigned char buffer[4*POLY1305_BLOCK_SIZE];
unsigned char finished;
unsigned char started;
#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;
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);
WOLFSSL_API int wc_Poly1305_MAC(Poly1305* ctx, byte* additional, word32 addSz,
byte* input, word32 sz, byte* tag, word32 tagSz);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HAVE_POLY1305 */
#endif /* WOLF_CRYPT_POLY1305_H */
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