/* * aes_icm.h * * Header for AES Integer Counter Mode. * * David A. McGrew * Cisco Systems, Inc. *
*/ /* * * Copyright (c) 2001-2017, Cisco Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of the Cisco Systems, Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS 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 * COPYRIGHT HOLDERS OR 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. *
*/
#ifndef AES_ICM_H #define AES_ICM_H
#include"cipher.h" #include"datatypes.h"
#ifdef OPENSSL
#include <openssl/evp.h> #include <openssl/aes.h>
typedefstruct {
v128_t counter; /* holds the counter value */
v128_t offset; /* initial offset value */ int key_size;
EVP_CIPHER_CTX *ctx;
} srtp_aes_icm_ctx_t;
#endif/* OPENSSL */
#ifdef MBEDTLS
#include <mbedtls/aes.h> typedefstruct {
v128_t counter; /* holds the counter value */
v128_t offset; /* initial offset value */
v128_t stream_block;
size_t nc_off; int key_size;
mbedtls_aes_context *ctx;
} srtp_aes_icm_ctx_t;
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