aes.h revision 1.1
1/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */ 2/* ==================================================================== 3 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * openssl-core@openssl.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 */ 51 52#ifndef HEADER_AES_H 53#define HEADER_AES_H 54 55#ifdef OPENSSL_NO_AES 56#error AES is disabled. 57#endif 58 59static const int AES_DECRYPT = 0; 60static const int AES_ENCRYPT = 1; 61/* Because array size can't be a const in C, the following two are macros. 62 Both sizes are in bytes. */ 63#define AES_MAXNR 14 64#define AES_BLOCK_SIZE 16 65 66#ifdef __cplusplus 67extern "C" { 68#endif 69 70/* This should be a hidden type, but EVP requires that the size be known */ 71struct aes_key_st { 72 unsigned long rd_key[4 *(AES_MAXNR + 1)]; 73 int rounds; 74}; 75typedef struct aes_key_st AES_KEY; 76 77const char *AES_options(void); 78 79int AES_set_encrypt_key(const unsigned char *userKey, const int bits, 80 AES_KEY *key); 81int AES_set_decrypt_key(const unsigned char *userKey, const int bits, 82 AES_KEY *key); 83 84void AES_encrypt(const unsigned char *in, unsigned char *out, 85 const AES_KEY *key); 86void AES_decrypt(const unsigned char *in, unsigned char *out, 87 const AES_KEY *key); 88 89void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, 90 const AES_KEY *key, const int enc); 91void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, 92 const unsigned long length, const AES_KEY *key, 93 unsigned char *ivec, const int enc); 94void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, 95 const unsigned long length, const AES_KEY *key, 96 unsigned char *ivec, int *num, const int enc); 97void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, 98 const unsigned long length, const AES_KEY *key, 99 unsigned char *ivec, int *num); 100void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, 101 const unsigned long length, const AES_KEY *key, 102 unsigned char *counter, unsigned int *num); 103 104 105#ifdef __cplusplus 106} 107#endif 108 109#endif /* !HEADER_AES_H */ 110