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-rw-r--r--src/sha3.h115
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diff --git a/src/sha3.h b/src/sha3.h
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-/**
- * sha3sum – SHA-3 (Keccak) checksum calculator
- *
- * Copyright © 2013, 2014 Mattias Andrée (maandree@member.fsf.org)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __SHA3_H__
-#define __SHA3_H__
-
-#include <stdlib.h>
-
-
-#ifdef WITH_C99
-# include <inttypes.h>
-# define restrict_ restrict
-# define byte int_fast8_t
-# define boolean int_fast8_t
-# define llong int_fast64_t
-# define ullong uint_fast64_t
-#else
-# define restrict_ /* introduced in C99 */
-# define byte char
-# define boolean char
-# if __x86_64__ || __ppc64__
-# define llong long int
-# else
-# define llong long long int
-# endif
-# define ullong unsigned llong
-#endif
-
-
-
-/**
- * Initialise Keccak sponge
- *
- * @param bitrate The bitrate
- * @param capacity The capacity
- * @param output The output size
- */
-void sha3_initialise(long bitrate, long capacity, long output);
-
-
-/**
- * Dispose of the Keccak sponge
- */
-void sha3_dispose(void);
-
-
-/**
- * Absorb the more of the message to the Keccak sponge
- *
- * @param msg The partial message
- * @param msglen The length of the partial message
- */
-void sha3_update(byte* restrict_ msg, long msglen);
-
-
-/**
- * Absorb the last part of the message and squeeze the Keccak sponge
- *
- * @param msg The rest of the message, may be {@code null}
- * @param msglen The length of the partial message
- * @param withReturn Whether to return the hash instead of just do a quick squeeze phrase and return {@code null}
- * @return The hash sum, or {@code null} if <tt>withReturn</tt> is {@code false}
- */
-byte* sha3_digest(byte* restrict_ msg, long msglen, boolean withReturn);
-
-
-/**
- * Force some rounds of Keccak-f
- *
- * @param times The number of rounds
- */
-void sha3_simpleSqueeze(long times);
-
-
-/**
- * Squeeze as much as is needed to get a digest a number of times
- *
- * @param times The number of digests
- */
-void sha3_fastSqueeze(long times);
-
-
-/**
- * Squeeze out another digest
- *
- * @return The hash sum
- */
-byte* sha3_squeeze(void);
-
-
-/**
- * Retrieve the state of the Keccak sponge
- *
- * @return A 25-element array with the state, changes will be applied to the sponge
- */
-llong* sha3_state(void);
-
-
-#endif
-