Zabbix

/*

** Zabbix

** Copyright (C) 2001-2022 Zabbix SIA

**

** This program 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.

**

** 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 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  02110-1301, USA.

**/

​

#ifndef ZABBIX_SHA256CRYPT_H

#define ZABBIX_SHA256CRYPT_H

​

#include "common.h"

​

#define ZBX_SHA256_DIGEST_SIZE  32

​

/* Structure to save state of computation between the single steps. */

typedef struct

{

    uint32_t    H[8];

    uint32_t    total[2];

    uint32_t    buflen;

    char        buffer[128];    /* NB: always correctly aligned for uint32_t. */

}

sha256_ctx;

​

void    zbx_sha256_init(sha256_ctx *ctx);

void    zbx_sha256_process_bytes(const void *buffer, size_t len, sha256_ctx *ctx);

void    *zbx_sha256_finish(sha256_ctx *ctx, void *resbuf);

void    zbx_sha256_hash(const char *in, char *out);

​

void*   zbx_sha256_hash_for_hmac(const void* data, const size_t datalen, void* out, const size_t outlen);

​

#endif /* ZABBIX_SHA256CRYPT_H */