/**
 *	@file    matrixcrypto.c
 *	@version $Format:%h%d$
 *
 *	Matrix Crypto Initialization and utility layer.
 */
/*
 *	Copyright (c) 2013-2016 INSIDE Secure Corporation
 *	Copyright (c) PeerSec Networks, 2002-2011
 *	All Rights Reserved
 *
 *	The latest version of this code is available at http://www.matrixssl.org
 *
 *	This software is open source; 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 General Public License does NOT permit incorporating this software
 *	into proprietary programs.  If you are unable to comply with the GPL, a
 *	commercial license for this software may be purchased from INSIDE at
 *	http://www.insidesecure.com/
 *
 *	This program is distributed in 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
 *	http://www.gnu.org/copyleft/gpl.html
 */
/******************************************************************************/

#include "../cryptoApi.h"

/******************************************************************************/
/**
	Open (initialize) the Crypto module.

	The config param should always be passed as:
		PSCRYPTO_CONFIG
*/
static char g_config[32] = "N";

int32_t psCryptoOpen(const char *config)
{
	uint32_t	clen;
   
	if (*g_config == 'Y') {
		return PS_SUCCESS; /* Function has been called previously */
	}
	/* 'config' is cryptoconfig + coreconfig */
	strncpy(g_config, PSCRYPTO_CONFIG, sizeof(g_config) - 1);
	clen = strlen(PSCRYPTO_CONFIG) - strlen(PSCORE_CONFIG);
	if (strncmp(g_config, config, clen) != 0) {
		psErrorStr( "Crypto config mismatch.\n" \
			"Library: " PSCRYPTO_CONFIG\
			"\nCurrent: %s\n", config);
		return -1;
	}
	if (psCoreOpen(config + clen) < 0) {
		psError("pscore open failure\n");
		return PS_FAILURE;
	}
	psOpenPrng();
	return 0;
}

void psCryptoClose(void)
{
	if (*g_config == 'Y') {
		*g_config = 'N';
		psClosePrng();
		psCoreClose();
	}
}



/******************************************************************************/