/*

 *

 *  Embedded Linux library

 *

 *  Copyright (C) 2011-2014  Intel Corporation. All rights reserved.

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Lesser General Public

 *  License as published by the Free Software Foundation; either

 *  version 2.1 of the License, or (at your option) any later version.

 *

 *  This library 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

 *  Lesser General Public License for more details.

 *

 *  You should have received a copy of the GNU Lesser General Public

 *  License along with this library; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 *

 */

#ifndef __ELL_CHECKSUM_H

#define __ELL_CHECKSUM_H

#include <stdbool.h>

#include <stdint.h>

#include <sys/uio.h>

#ifdef __cplusplus

extern "C" {

#endif

struct l_checksum;

enum l_checksum_type {

	L_CHECKSUM_NONE,

	L_CHECKSUM_MD4,

	L_CHECKSUM_MD5,

	L_CHECKSUM_SHA1,

	L_CHECKSUM_SHA224,

	L_CHECKSUM_SHA256,

	L_CHECKSUM_SHA384,

	L_CHECKSUM_SHA512,

};

struct l_checksum *l_checksum_new(enum l_checksum_type type);

struct l_checksum *l_checksum_new_cmac_aes(const void *key, size_t key_len);

struct l_checksum *l_checksum_new_hmac(enum l_checksum_type type,

					const void *key, size_t key_len);

struct l_checksum *l_checksum_clone(struct l_checksum *checksum);

void l_checksum_free(struct l_checksum *checksum);

void l_checksum_reset(struct l_checksum *checksum);

bool l_checksum_update(struct l_checksum *checksum,

					const void *data, size_t len);

bool l_checksum_updatev(struct l_checksum *checksum,

					const struct iovec *iov,

					size_t iov_len);

ssize_t l_checksum_get_digest(struct l_checksum *checksum,

					void *digest, size_t len);

char *l_checksum_get_string(struct l_checksum *checksum);

bool l_checksum_is_supported(enum l_checksum_type type, bool check_hmac);

bool l_checksum_cmac_aes_supported();

ssize_t l_checksum_digest_length(enum l_checksum_type type);

#ifdef __cplusplus

}

#endif

#endif /* __ELL_CHECKSUM_H */