/* ====================================================================
 * Copyright (c) 2016 The GmSSL Project.  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.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the GmSSL Project.
 *    (http://gmssl.org/)"
 *
 * 4. The name "GmSSL Project" must not be used to endorse or promote
 *    products derived from this software without prior written
 *    permission. For written permission, please contact
 *    guanzhi1980@gmail.com.
 *
 * 5. Products derived from this software may not be called "GmSSL"
 *    nor may "GmSSL" appear in their names without prior written
 *    permission of the GmSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the GmSSL Project
 *    (http://gmssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 GmSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/gmapi.h>
#include <openssl/gmsdf.h>
#include "sdf_lcl.h"

int SDF_ImportKey(
	void *hSessionHandle,
	unsigned char *pucKey,
	unsigned int uiKeyLength,
	void **phKeyHandle)
{
	int ret = 0;
	SDF_KEY *key = NULL;

	/* check arguments */
	if (!hSessionHandle || !pucKey || !phKeyHandle) {
		SDFerr(SDF_F_SDF_IMPORTKEY,
			ERR_R_PASSED_NULL_PARAMETER);
		return 0;
	}
	if (uiKeyLength <= 0 || uiKeyLength > EVP_MAX_KEY_LENGTH) {
		SDFerr(SDF_F_SDF_IMPORTKEY,
			SDF_R_INVALID_KEY_LENGTH);
		return 0;
	}

	/* create object */
	if (!(key = OPENSSL_zalloc(sizeof(*key)))) {
		SDFerr(SDF_F_SDF_IMPORTKEY, ERR_R_MALLOC_FAILURE);
		goto end;
	}

	/* copy key data */
	memcpy(key->key, pucKey, uiKeyLength);
	key->keylen = uiKeyLength;

	/* set output */
	*phKeyHandle = key;
	key = NULL;
	ret = SDR_OK;

end:
	OPENSSL_clear_free(key, sizeof(*key));
	return ret;
}