/*
 *  FIPS-180-2 compliant SHA-256 implementation
 *
 *  Copyright (C) 2001-2003  Christophe Devine
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


// Lightly modified by hrydgard (inttypes.h, const input)

#ifndef _SHA256_H
#define _SHA256_H

#include <inttypes.h>

struct sha256_context {
	uint32_t total[2];
	uint32_t state[8];
	uint8_t buffer[64];
};

void sha256_starts(sha256_context *ctx);
void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
void sha256_finish(sha256_context *ctx, uint8_t digest[32]);

#endif /* sha256.h */