/usr/include/nettle/sha3.h is in nettle-dev 3.2-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | /* sha3.h
The sha3 hash function (aka Keccak).
Copyright (C) 2012 Niels Möller
This file is part of GNU Nettle.
GNU Nettle is free software: you can redistribute it and/or
modify it under the terms of either:
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your
option) any later version.
or
* 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.
or both in parallel, as here.
GNU Nettle 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 copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see http://www.gnu.org/licenses/.
*/
#ifndef NETTLE_SHA3_H_INCLUDED
#define NETTLE_SHA3_H_INCLUDED
#include "nettle-types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Name mangling */
#define sha3_permute nettle_sha3_permute
#define _sha3_update _nettle_sha3_update
#define _sha3_pad _nettle_sha3_pad
#define sha3_224_init nettle_sha3_224_init
#define sha3_224_update nettle_sha3_224_update
#define sha3_224_digest nettle_sha3_224_digest
#define sha3_256_init nettle_sha3_256_init
#define sha3_256_update nettle_sha3_256_update
#define sha3_256_digest nettle_sha3_256_digest
#define sha3_384_init nettle_sha3_384_init
#define sha3_384_update nettle_sha3_384_update
#define sha3_384_digest nettle_sha3_384_digest
#define sha3_512_init nettle_sha3_512_init
#define sha3_512_update nettle_sha3_512_update
#define sha3_512_digest nettle_sha3_512_digest
/* Indicates that SHA3 is the NIST FIPS 202 version. */
#define NETTLE_SHA3_FIPS202 1
/* The sha3 state is a 5x5 matrix of 64-bit words. In the notation of
Keccak description, S[x,y] is element x + 5*y, so if x is
interpreted as the row index and y the column index, it is stored
in column-major order. */
#define SHA3_STATE_LENGTH 25
/* The "width" is 1600 bits or 200 octets */
struct sha3_state
{
uint64_t a[SHA3_STATE_LENGTH];
};
void
sha3_permute (struct sha3_state *state);
unsigned
_sha3_update (struct sha3_state *state,
unsigned block_size, uint8_t *block,
unsigned pos,
size_t length, const uint8_t *data);
void
_sha3_pad (struct sha3_state *state,
unsigned block_size, uint8_t *block, unsigned pos);
/* The "capacity" is set to 2*(digest size), 512 bits or 64 octets.
The "rate" is the width - capacity, or width - 2 * (digest
size). */
#define SHA3_224_DIGEST_SIZE 28
#define SHA3_224_BLOCK_SIZE 144
#define SHA3_256_DIGEST_SIZE 32
#define SHA3_256_BLOCK_SIZE 136
#define SHA3_384_DIGEST_SIZE 48
#define SHA3_384_BLOCK_SIZE 104
#define SHA3_512_DIGEST_SIZE 64
#define SHA3_512_BLOCK_SIZE 72
/* For backwards compatibility */
#define SHA3_224_DATA_SIZE SHA3_224_BLOCK_SIZE
#define SHA3_256_DATA_SIZE SHA3_256_BLOCK_SIZE
#define SHA3_384_DATA_SIZE SHA3_384_BLOCK_SIZE
#define SHA3_512_DATA_SIZE SHA3_512_BLOCK_SIZE
struct sha3_224_ctx
{
struct sha3_state state;
unsigned index;
uint8_t block[SHA3_224_BLOCK_SIZE];
};
void
sha3_224_init (struct sha3_224_ctx *ctx);
void
sha3_224_update (struct sha3_224_ctx *ctx,
size_t length,
const uint8_t *data);
void
sha3_224_digest(struct sha3_224_ctx *ctx,
size_t length,
uint8_t *digest);
struct sha3_256_ctx
{
struct sha3_state state;
unsigned index;
uint8_t block[SHA3_256_BLOCK_SIZE];
};
void
sha3_256_init (struct sha3_256_ctx *ctx);
void
sha3_256_update (struct sha3_256_ctx *ctx,
size_t length,
const uint8_t *data);
void
sha3_256_digest(struct sha3_256_ctx *ctx,
size_t length,
uint8_t *digest);
struct sha3_384_ctx
{
struct sha3_state state;
unsigned index;
uint8_t block[SHA3_384_BLOCK_SIZE];
};
void
sha3_384_init (struct sha3_384_ctx *ctx);
void
sha3_384_update (struct sha3_384_ctx *ctx,
size_t length,
const uint8_t *data);
void
sha3_384_digest(struct sha3_384_ctx *ctx,
size_t length,
uint8_t *digest);
struct sha3_512_ctx
{
struct sha3_state state;
unsigned index;
uint8_t block[SHA3_512_BLOCK_SIZE];
};
void
sha3_512_init (struct sha3_512_ctx *ctx);
void
sha3_512_update (struct sha3_512_ctx *ctx,
size_t length,
const uint8_t *data);
void
sha3_512_digest(struct sha3_512_ctx *ctx,
size_t length,
uint8_t *digest);
#ifdef __cplusplus
}
#endif
#endif /* NETTLE_SHA3_H_INCLUDED */
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