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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 20075, Digium, Inc.
*
* Kevin P. Fleming <kpfleming@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
* Wrappers for AES encryption/decryption
*
* \author Kevin P. Fleming <kpfleming@digium.com>
*
* These wrappers provided a generic interface to either the
* AES methods provided by OpenSSL's crypto library, or the
* AES implementation included with Asterisk.
*/
#ifndef _ASTERISK_AES_H
#define _ASTERISK_AES_H
#ifdef HAVE_CRYPTO
/* Use the OpenSSL crypto library */
#include "openssl/aes.h"
typedef AES_KEY ast_aes_encrypt_key;
typedef AES_KEY ast_aes_decrypt_key;
#define ast_aes_encrypt_key(key, context) AES_set_encrypt_key(key, 128, context)
#define ast_aes_decrypt_key(key, context) AES_set_decrypt_key(key, 128, context)
#define ast_aes_encrypt(in, out, context) AES_encrypt(in, out, context)
#define ast_aes_decrypt(in, out, context) AES_decrypt(in, out, context)
#else /* !HAVE_CRYPTO */
/* Use the included AES implementation */
#define AES_128
#include "aes_internal.h"
typedef aes_encrypt_ctx ast_aes_encrypt_key;
typedef aes_decrypt_ctx ast_aes_decrypt_key;
#define ast_aes_encrypt_key(key, context) aes_encrypt_key128(key, context)
#define ast_aes_decrypt_key(key, context) aes_decrypt_key128(key, context)
#define ast_aes_encrypt(in, out, context) aes_encrypt(in, out, context)
#define ast_aes_decrypt(in, out, context) aes_decrypt(in, out, context)
#endif /* !HAVE_CRYPTO */
#endif /* _ASTERISK_AES_H */
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