Hush Full Node software. We were censored from Github, this is where all development happens now.
https://hush.is
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
3.6 KiB
117 lines
3.6 KiB
// Copyright (c) 2016-2023 The Hush developers
|
|
// Distributed under the GPLv3 software license, see the accompanying
|
|
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
|
|
/*-
|
|
* Copyright 2005 Colin Percival
|
|
* Copyright 2013 Christian Mehlis & René Kijewski
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD: src/lib/libmd/sha256.h,v 1.1.2.1 2005/06/24 13:32:25 cperciva Exp $
|
|
*/
|
|
|
|
/**
|
|
* @defgroup sys_sha256 SHA264
|
|
* @ingroup sys
|
|
* @brief SHA264 hash generator
|
|
*/
|
|
|
|
/**
|
|
* @ingroup sys_crypto
|
|
* @{
|
|
*
|
|
* @file sha256.h
|
|
* @brief Header definitions for the SHA256 hash function
|
|
*
|
|
* @author Colin Percival
|
|
* @author Christian Mehlis
|
|
* @author Rene Kijewski
|
|
*/
|
|
|
|
#ifndef _SHA256_H_
|
|
#define _SHA256_H_
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define SHA256_DIGEST_LENGTH 32
|
|
|
|
/**
|
|
* @brief Context for ciper operatins based on sha256
|
|
*/
|
|
typedef struct {
|
|
/** global state */
|
|
uint32_t state[8];
|
|
/** processed bytes counter */
|
|
uint32_t count[2];
|
|
/** data buffer */
|
|
unsigned char buf[64];
|
|
} sha256_context_t;
|
|
|
|
/**
|
|
* @brief SHA-256 initialization. Begins a SHA-256 operation.
|
|
*
|
|
* @param ctx sha256_context_t handle to init
|
|
*/
|
|
void sha256_init(sha256_context_t *ctx);
|
|
|
|
/**
|
|
* @brief Add bytes into the hash
|
|
*
|
|
* @param ctx sha256_context_t handle to use
|
|
* @param in pointer to the input buffer
|
|
* @param len length of the buffer
|
|
*/
|
|
void sha256_update(sha256_context_t *ctx, const void *in, size_t len);
|
|
|
|
/**
|
|
* @brief SHA-256 finalization. Pads the input data, exports the hash value,
|
|
* and clears the context state.
|
|
*
|
|
* @param digest resulting digest, this is the hash of all the bytes
|
|
* @param ctx sha256_context_t handle to use
|
|
*/
|
|
void sha256_final(unsigned char digest[32], sha256_context_t *ctx);
|
|
|
|
/**
|
|
* @brief A wrapper function to simplify the generation of a hash, this is
|
|
* usefull for generating sha256 for one buffer
|
|
*
|
|
* @param d pointer to the buffer to generate hash from
|
|
* @param n length of the buffer
|
|
* @param md optional pointer to an array for the result, length must be
|
|
* SHA256_DIGEST_LENGTH
|
|
* if md == NULL, one static buffer is used
|
|
*/
|
|
unsigned char *sha256(const unsigned char *d, size_t n, unsigned char *md);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/** @} */
|
|
#endif /* _SHA256_H_ */
|
|
|