16ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org/* 26ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * aes_cbc.h 36ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * 46ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * Header for AES Cipher Blobk Chaining Mode. 56ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * 66ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * David A. McGrew 76ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * Cisco Systems, Inc. 86ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org * 96ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org */ 105961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com/* 115961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 125961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * Copyright (c) 2001-2006, Cisco Systems, Inc. 135961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * All rights reserved. 145961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 155961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * Redistribution and use in source and binary forms, with or without 165961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * modification, are permitted provided that the following conditions 175961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * are met: 185961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 195961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * Redistributions of source code must retain the above copyright 205961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * notice, this list of conditions and the following disclaimer. 215961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 225961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * Redistributions in binary form must reproduce the above 235961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * copyright notice, this list of conditions and the following 245961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * disclaimer in the documentation and/or other materials provided 255961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * with the distribution. 265961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 275961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * Neither the name of the Cisco Systems, Inc. nor the names of its 285961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * contributors may be used to endorse or promote products derived 295961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * from this software without specific prior written permission. 305961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 315961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 325961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 335961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 345961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 355961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 365961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 375961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 385961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 395961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 405961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 415961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 425961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * OF THE POSSIBILITY OF SUCH DAMAGE. 435961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com * 445961d8555973f660a94b77ffd7b9495291fbc874mallinath@google.com */ 456ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 466ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org#ifndef AES_CBC_H 476ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org#define AES_CBC_H 486ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 496ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org#include "aes.h" 506ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org#include "cipher.h" 516ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 526ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgtypedef struct { 536ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org v128_t state; /* cipher chaining state */ 546ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org v128_t previous; /* previous ciphertext block */ 556ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org aes_expanded_key_t expanded_key; /* the cipher key */ 566ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org} aes_cbc_ctx_t; 576ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 586ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 596ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_set_key(aes_cbc_ctx_t *c, 606ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org const unsigned char *key); 616ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 626ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 636ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_encrypt(aes_cbc_ctx_t *c, 646ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned char *buf, 656ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned int *bytes_in_data); 666ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 676ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 686ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key, 696ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org int key_len, cipher_direction_t dir); 706ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 716ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 726ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv); 736ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 746ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 756ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_nist_encrypt(aes_cbc_ctx_t *c, 766ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned char *data, 776ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned int *bytes_in_data); 786ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 796ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgerr_status_t 806ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.orgaes_cbc_nist_decrypt(aes_cbc_ctx_t *c, 816ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned char *data, 826ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org unsigned int *bytes_in_data); 836ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 846ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org#endif /* AES_CBC_H */ 856ed0ee98e1c3d29a0ef79996f7d1abf174f39besergeyu@chromium.org 86