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91 lines
3.9 KiB
C
91 lines
3.9 KiB
C
/*
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* $Id: rijndael-api-fst.h,v 12.0 2004/11/17 03:43:17 bostic Exp $
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*/
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/**
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* rijndael-api-fst.h
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*
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* @version 2.9 (December 2000)
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*
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* Optimised ANSI C code for the Rijndael cipher (now AES)
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*
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* @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
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* @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
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* @author Paulo Barreto <paulo.barreto@terra.com.br>
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*
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* This code is hereby placed in the public domain.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Acknowledgements:
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*
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* We are deeply indebted to the following people for their bug reports,
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* fixes, and improvement suggestions to this implementation. Though we
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* tried to list all contributions, we apologise in advance for any
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* missing reference.
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*
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* Andrew Bales <Andrew.Bales@Honeywell.com>
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* Markus Friedl <markus.friedl@informatik.uni-erlangen.de>
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* John Skodon <skodonj@webquill.com>
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*/
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#ifndef __RIJNDAEL_API_FST_H
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#define __RIJNDAEL_API_FST_H
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#include "crypto/rijndael/rijndael-alg-fst.h"
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/* Generic Defines */
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#define DIR_ENCRYPT 0 /* Are we encrpyting? */
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#define DIR_DECRYPT 1 /* Are we decrpyting? */
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#define MODE_ECB 1 /* Are we ciphering in ECB mode? */
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#define MODE_CBC 2 /* Are we ciphering in CBC mode? */
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#define MODE_CFB1 3 /* Are we ciphering in 1-bit CFB mode? */
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#undef TRUE
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#define TRUE 1
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#undef FALSE
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#define FALSE 0
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#define BITSPERBLOCK 128 /* Default number of bits in a cipher block */
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/* Error Codes */
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#define BAD_KEY_DIR -1 /* Key direction is invalid, e.g., unknown value */
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#define BAD_KEY_MAT -2 /* Key material not of correct length */
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#define BAD_KEY_INSTANCE -3 /* Key passed is not valid */
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#define BAD_CIPHER_MODE -4 /* Params struct passed to cipherInit invalid */
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#define BAD_CIPHER_STATE -5 /* Cipher in wrong state (e.g., not initialized) */
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#define BAD_BLOCK_LENGTH -6
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#define BAD_CIPHER_INSTANCE -7
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#define BAD_DATA -8 /* Data contents are invalid, e.g., invalid padding */
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#define BAD_OTHER -9 /* Unknown error */
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/* Algorithm-specific Defines */
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#define MAX_KEY_SIZE 64 /* # of ASCII char's needed to represent a key */
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#define MAX_IV_SIZE 16 /* # bytes needed to represent an IV */
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/* Typedefs */
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/* The structure for key information */
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typedef struct {
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u_int8_t direction; /* Key used for encrypting or decrypting? */
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int keyLen; /* Length of the key */
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char keyMaterial[MAX_KEY_SIZE+1]; /* Raw key data in ASCII, e.g., user input or KAT values */
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int Nr; /* key-length-dependent number of rounds */
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u32 rk[4*(MAXNR + 1)]; /* key schedule */
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u32 ek[4*(MAXNR + 1)]; /* CFB1 key schedule (encryption only) */
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} keyInstance;
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/* The structure for cipher information */
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typedef struct { /* changed order of the components */
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u_int8_t mode; /* MODE_ECB, MODE_CBC, or MODE_CFB1 */
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u_int8_t IV[MAX_IV_SIZE]; /* A possible Initialization Vector for ciphering */
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} cipherInstance;
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#endif /* __RIJNDAEL_API_FST_H */
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