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src/libdigidoc/openssl/crypto/aes/aes.h
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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 <openssl/opensslconf.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 OPENSSL_FIPS
00070 #define FIPS_AES_SIZE_T int
00071 #endif
00072 
00073 #ifdef  __cplusplus
00074 extern "C" {
00075 #endif
00076 
00077 /* This should be a hidden type, but EVP requires that the size be known */
00078 struct aes_key_st {
00079 #ifdef AES_LONG
00080     unsigned long rd_key[4 *(AES_MAXNR + 1)];
00081 #else
00082     unsigned int rd_key[4 *(AES_MAXNR + 1)];
00083 #endif
00084     int rounds;
00085 };
00086 typedef struct aes_key_st AES_KEY;
00087 
00088 const char *AES_options(void);
00089 
00090 int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
00091         AES_KEY *key);
00092 int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
00093         AES_KEY *key);
00094 
00095 void AES_encrypt(const unsigned char *in, unsigned char *out,
00096         const AES_KEY *key);
00097 void AES_decrypt(const unsigned char *in, unsigned char *out,
00098         const AES_KEY *key);
00099 
00100 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
00101         const AES_KEY *key, const int enc);
00102 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
00103         const unsigned long length, const AES_KEY *key,
00104         unsigned char *ivec, const int enc);
00105 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
00106         const unsigned long length, const AES_KEY *key,
00107         unsigned char *ivec, int *num, const int enc);
00108 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
00109         const unsigned long length, const AES_KEY *key,
00110         unsigned char *ivec, int *num, const int enc);
00111 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
00112         const unsigned long length, const AES_KEY *key,
00113         unsigned char *ivec, int *num, const int enc);
00114 void AES_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
00115                             const int nbits,const AES_KEY *key,
00116                             unsigned char *ivec,const int enc);
00117 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
00118         const unsigned long length, const AES_KEY *key,
00119         unsigned char *ivec, int *num);
00120 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
00121         const unsigned long length, const AES_KEY *key,
00122         unsigned char ivec[AES_BLOCK_SIZE],
00123         unsigned char ecount_buf[AES_BLOCK_SIZE],
00124         unsigned int *num);
00125 
00126 /* For IGE, see also http://www.links.org/files/openssl-ige.pdf */
00127 /* NB: the IV is _two_ blocks long */
00128 void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
00129                      const unsigned long length, const AES_KEY *key,
00130                      unsigned char *ivec, const int enc);
00131 /* NB: the IV is _four_ blocks long */
00132 void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
00133                         const unsigned long length, const AES_KEY *key,
00134                         const AES_KEY *key2, const unsigned char *ivec,
00135                         const int enc);
00136 
00137 int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
00138                 unsigned char *out,
00139                 const unsigned char *in, unsigned int inlen);
00140 int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
00141                 unsigned char *out,
00142                 const unsigned char *in, unsigned int inlen);
00143 
00144 #ifdef  __cplusplus
00145 }
00146 #endif
00147 
00148 #endif /* !HEADER_AES_H */
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