src/libstrongswan/plugins/openssl/openssl_gcm.h

   1 /*
   2  * Copyright (C) 2013 Tobias Brunner
   3  * HSR Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 /**
  17  * Implements the aead_t interface using OpenSSL in GCM mode.
  18  *
  19  * @defgroup openssl_gcm openssl_gcm
  20  * @{ @ingroup openssl_p
  21  */
  22
  23 #ifndef OPENSSL_GCM_H_
  24 #define OPENSSL_GCM_H_
  25
  26 #include <crypto/aead.h>
  27
  28 /**
  29  * Constructor to create aead_t implementation.
  30  *
  31  * @param algo                  algorithm to implement
  32  * @param key_size              key size in bytes
  33  * @param salt_size             size of implicit salt length
  34  * @return                              aead_t object, NULL if not supported
  35  */
  36 aead_t *openssl_gcm_create(encryption_algorithm_t algo, size_t key_size,
  37                                                         size_t salt_size);
  38
  39 #endif /** OPENSSL_GCM_H_ @}*/