1386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari/* 2386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * aes.h 3386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 4386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * header file for the AES block cipher 5386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 6386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * David A. McGrew 7386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Cisco Systems, Inc. 8386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari */ 9386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 10386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari/* 11386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 12386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Copyright (c) 2001-2006, Cisco Systems, Inc. 13386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * All rights reserved. 14386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 15386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Redistribution and use in source and binary forms, with or without 16386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * modification, are permitted provided that the following conditions 17386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * are met: 18386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 19386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Redistributions of source code must retain the above copyright 20386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * notice, this list of conditions and the following disclaimer. 21386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 22386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Redistributions in binary form must reproduce the above 23386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * copyright notice, this list of conditions and the following 24386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * disclaimer in the documentation and/or other materials provided 25386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * with the distribution. 26386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 27386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * Neither the name of the Cisco Systems, Inc. nor the names of its 28386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * contributors may be used to endorse or promote products derived 29386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * from this software without specific prior written permission. 30386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 31386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 34386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 35386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 36386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 37386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 38386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 41386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 42386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * OF THE POSSIBILITY OF SUCH DAMAGE. 43386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * 44386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari */ 45386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 46386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#ifndef _AES_H 47386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#define _AES_H 48386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 49386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#include "config.h" 50386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 51386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#include "datatypes.h" 52386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#include "gf2_8.h" 53386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 54386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari/* aes internals */ 55386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 56386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagaritypedef v128_t aes_expanded_key_t[11]; 57386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 58386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 59386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_expand_encryption_key(const v128_t *key, 60386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari aes_expanded_key_t expanded_key); 61386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 62386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 63386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_expand_decryption_key(const v128_t *key, 64386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari aes_expanded_key_t expanded_key); 65386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 66386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 67386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_encrypt(v128_t *plaintext, const aes_expanded_key_t exp_key); 68386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 69386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 70386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_decrypt(v128_t *plaintext, const aes_expanded_key_t exp_key); 71386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 72386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#if 0 73386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari/* 74386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari * internal functions 75386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari */ 76386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 77386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 78386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_init_sbox(void); 79386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 80386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagarivoid 81386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagariaes_compute_tables(void); 82386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#endif 83386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari 84386ce4d9144fc190797f4e43a31aeaf76ca2e373Param Reddappagari#endif /* _AES_H */ 85