2018-05-04 16:08:28 +02:00
|
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
|
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
|
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
2015-10-21 05:03:22 +02:00
|
|
|
|
|
|
|
|
#ifndef _RIJNDAEL_H_
|
|
|
|
|
#define _RIJNDAEL_H_ 1
|
|
|
|
|
|
2018-05-04 16:08:28 +02:00
|
|
|
#include "blapii.h"
|
|
|
|
|
|
2015-10-21 05:03:22 +02:00
|
|
|
#define RIJNDAEL_MIN_BLOCKSIZE 16 /* bytes */
|
|
|
|
|
#define RIJNDAEL_MAX_BLOCKSIZE 32 /* bytes */
|
|
|
|
|
|
|
|
|
|
typedef SECStatus AESBlockFunc(AESContext *cx,
|
|
|
|
|
unsigned char *output,
|
|
|
|
|
const unsigned char *input);
|
|
|
|
|
|
|
|
|
|
/* RIJNDAEL_NUM_ROUNDS
|
|
|
|
|
*
|
|
|
|
|
* Number of rounds per execution
|
|
|
|
|
* Nk - number of key bytes
|
|
|
|
|
* Nb - blocksize (in bytes)
|
|
|
|
|
*/
|
|
|
|
|
#define RIJNDAEL_NUM_ROUNDS(Nk, Nb) \
|
|
|
|
|
(PR_MAX(Nk, Nb) + 6)
|
|
|
|
|
|
|
|
|
|
/* RIJNDAEL_MAX_STATE_SIZE
|
|
|
|
|
*
|
|
|
|
|
* Maximum number of bytes in the state (spec includes up to 256-bit block
|
|
|
|
|
* size)
|
|
|
|
|
*/
|
|
|
|
|
#define RIJNDAEL_MAX_STATE_SIZE 32
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This magic number is (Nb_max * (Nr_max + 1))
|
|
|
|
|
* where Nb_max is the maximum block size in 32-bit words,
|
|
|
|
|
* Nr_max is the maximum number of rounds, which is Nb_max + 6
|
|
|
|
|
*/
|
|
|
|
|
#define RIJNDAEL_MAX_EXP_KEY_SIZE (8 * 15)
|
|
|
|
|
|
|
|
|
|
/* AESContextStr
|
|
|
|
|
*
|
|
|
|
|
* Values which maintain the state for Rijndael encryption/decryption.
|
|
|
|
|
*
|
|
|
|
|
* iv - initialization vector for CBC mode
|
|
|
|
|
* Nb - the number of bytes in a block, specified by user
|
|
|
|
|
* Nr - the number of rounds, specified by a table
|
|
|
|
|
* expandedKey - the round keys in 4-byte words, the length is Nr * Nb
|
2018-05-04 16:08:28 +02:00
|
|
|
* worker - the encryption/decryption function to use with worker_cx
|
|
|
|
|
* destroy - if not NULL, the destroy function to use with worker_cx
|
|
|
|
|
* worker_cx - the context for worker and destroy
|
|
|
|
|
* isBlock - is the mode of operation a block cipher or a stream cipher?
|
2015-10-21 05:03:22 +02:00
|
|
|
*/
|
|
|
|
|
struct AESContextStr
|
|
|
|
|
{
|
|
|
|
|
unsigned int Nb;
|
|
|
|
|
unsigned int Nr;
|
2018-05-04 16:08:28 +02:00
|
|
|
freeblCipherFunc worker;
|
|
|
|
|
/* NOTE: The offsets of iv and expandedKey are hardcoded in intel-aes.s.
|
|
|
|
|
* Don't add new members before them without updating intel-aes.s. */
|
2015-10-21 05:03:22 +02:00
|
|
|
unsigned char iv[RIJNDAEL_MAX_BLOCKSIZE];
|
|
|
|
|
PRUint32 expandedKey[RIJNDAEL_MAX_EXP_KEY_SIZE];
|
2018-05-04 16:08:28 +02:00
|
|
|
freeblDestroyFunc destroy;
|
|
|
|
|
void *worker_cx;
|
|
|
|
|
PRBool isBlock;
|
2015-10-21 05:03:22 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#endif /* _RIJNDAEL_H_ */
|
