00001 /* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */ 00002 /* ==================================================================== 00003 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 00012 * 2. Redistributions in binary form must reproduce the above copyright 00013 * notice, this list of conditions and the following disclaimer in 00014 * the documentation and/or other materials provided with the 00015 * distribution. 00016 * 00017 * 3. All advertising materials mentioning features or use of this 00018 * software must display the following acknowledgment: 00019 * "This product includes software developed by the OpenSSL Project 00020 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 00021 * 00022 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 00023 * endorse or promote products derived from this software without 00024 * prior written permission. For written permission, please contact 00025 * openssl-core@openssl.org. 00026 * 00027 * 5. Products derived from this software may not be called "OpenSSL" 00028 * nor may "OpenSSL" appear in their names without prior written 00029 * permission of the OpenSSL Project. 00030 * 00031 * 6. Redistributions of any form whatsoever must retain the following 00032 * acknowledgment: 00033 * "This product includes software developed by the OpenSSL Project 00034 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 00035 * 00036 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 00037 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00038 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00039 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 00040 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00041 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 00042 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00043 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00044 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 00045 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00046 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 00047 * OF THE POSSIBILITY OF SUCH DAMAGE. 00048 * ==================================================================== 00049 * 00050 */ 00051 00052 #ifndef HEADER_AES_H 00053 #define HEADER_AES_H 00054 00055 #include <aversive.h> 00056 00057 #ifdef OPENSSL_NO_AES 00058 #error AES is disabled. 00059 #endif 00060 00061 #define AES_ENCRYPT 1 00062 #define AES_DECRYPT 0 00063 00064 /* Because array size can't be a const in C, the following two are macros. 00065 Both sizes are in bytes. */ 00066 #define AES_MAXNR 14 00067 #define AES_BLOCK_SIZE 16 00068 00069 #ifdef __cplusplus 00070 extern "C" { 00071 #endif 00072 00073 /* This should be a hidden type, but EVP requires that the size be known */ 00074 struct aes_key_st { 00075 //unsigned long rd_key[4 *(AES_MAXNR + 1)]; 00076 uint32_t rd_key[4 *(AES_MAXNR + 1)]; 00077 int rounds; 00078 }; 00079 typedef struct aes_key_st AES_KEY; 00080 00081 const char *AES_options(void); 00082 00083 int AES_set_encrypt_key(const unsigned char *userKey, const int bits, 00084 AES_KEY *key); 00085 int AES_set_decrypt_key(const unsigned char *userKey, const int bits, 00086 AES_KEY *key); 00087 00088 void AES_encrypt(const unsigned char *in, unsigned char *out, 00089 const AES_KEY *key); 00090 void AES_decrypt(const unsigned char *in, unsigned char *out, 00091 const AES_KEY *key); 00092 00093 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, 00094 const AES_KEY *key, const int enc); 00095 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, 00096 const unsigned long length, const AES_KEY *key, 00097 unsigned char *ivec, const int enc); 00098 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, 00099 const unsigned long length, const AES_KEY *key, 00100 unsigned char *ivec, int *num, const int enc); 00101 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, 00102 const unsigned long length, const AES_KEY *key, 00103 unsigned char *ivec, int *num); 00104 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, 00105 const unsigned long length, const AES_KEY *key, 00106 unsigned char counter[AES_BLOCK_SIZE], 00107 unsigned char ecount_buf[AES_BLOCK_SIZE], 00108 unsigned int *num); 00109 00110 00111 #ifdef __cplusplus 00112 } 00113 #endif 00114 00115 #endif /* !HEADER_AES_H */
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