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/* pbkdf2.h
PKCS #5 password-based key derivation function PBKDF2, see RFC 2898.
Copyright (C) 2012 Simon Josefsson
This file is part of GNU Nettle.
GNU Nettle is free software: you can redistribute it and/or
modify it under the terms of either:
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your
option) any later version.
or
* 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.
or both in parallel, as here.
GNU Nettle 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 copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see http://www.gnu.org/licenses/.
*/
#ifndef NETTLE_PBKDF2_H_INCLUDED
#define NETTLE_PBKDF2_H_INCLUDED
#include "nettle-meta.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Namespace mangling */
#define pbkdf2 nettle_pbkdf2
#define pbkdf2_hmac_sha1 nettle_pbkdf2_hmac_sha1
#define pbkdf2_hmac_sha256 nettle_pbkdf2_hmac_sha256
void
pbkdf2 (void *mac_ctx,
nettle_hash_update_func *update,
nettle_hash_digest_func *digest,
size_t digest_size, unsigned iterations,
size_t salt_length, const uint8_t *salt,
size_t length, uint8_t *dst);
#define PBKDF2(ctx, update, digest, digest_size, \
iterations, salt_length, salt, length, dst) \
(0 ? ((update)((ctx), 0, (uint8_t *) 0), \
(digest)((ctx), 0, (uint8_t *) 0)) \
: pbkdf2 ((ctx), \
(nettle_hash_update_func *)(update), \
(nettle_hash_digest_func *)(digest), \
(digest_size), (iterations), \
(salt_length), (salt), (length), (dst)))
/* PBKDF2 with specific PRFs. */
void
pbkdf2_hmac_sha1 (size_t key_length, const uint8_t *key,
unsigned iterations,
size_t salt_length, const uint8_t *salt,
size_t length, uint8_t *dst);
void
pbkdf2_hmac_sha256 (size_t key_length, const uint8_t *key,
unsigned iterations,
size_t salt_length, const uint8_t *salt,
size_t length, uint8_t *dst);
#ifdef __cplusplus
}
#endif
#endif /* NETTLE_PBKDF2_H_INCLUDED */
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