The Tor Browser: netwerk/srtp/src/crypto/include/aes.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2  * aes.h

     3  *

     4  * header file for the AES block cipher

     5  *

     6  * David A. McGrew

     7  * Cisco Systems, Inc.

     8  */

    10 /*

    11  *

    12  * Copyright (c) 2001-2006, Cisco Systems, Inc.

    13  * All rights reserved.

    14  *

    15  * Redistribution and use in source and binary forms, with or without

    16  * modification, are permitted provided that the following conditions

    17  * are met:

    18  *

    19  *   Redistributions of source code must retain the above copyright

    20  *   notice, this list of conditions and the following disclaimer.

    21  *

    22  *   Redistributions in binary form must reproduce the above

    23  *   copyright notice, this list of conditions and the following

    24  *   disclaimer in the documentation and/or other materials provided

    25  *   with the distribution.

    26  *

    27  *   Neither the name of the Cisco Systems, Inc. nor the names of its

    28  *   contributors may be used to endorse or promote products derived

    29  *   from this software without specific prior written permission.

    30  *

    31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

    34  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

    35  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

    36  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    37  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

    38  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

    40  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    41  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

    42  * OF THE POSSIBILITY OF SUCH DAMAGE.

    43  *

    44  */

    46 #ifndef _AES_H

    47 #define _AES_H

    49 #include "config.h"

    51 #include "datatypes.h"

    52 #include "gf2_8.h"

    53 #include "err.h"

    55 /* aes internals */

    57 typedef struct {

    58   v128_t round[15];

    59   int num_rounds;

    60 } aes_expanded_key_t;

    62 err_status_t

    63 aes_expand_encryption_key(const uint8_t *key,

    64 			  int key_len,

    65 			  aes_expanded_key_t *expanded_key);

    67 err_status_t

    68 aes_expand_decryption_key(const uint8_t *key,

    69 			  int key_len,

    70 			  aes_expanded_key_t *expanded_key);

    72 void

    73 aes_encrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key);

    75 void

    76 aes_decrypt(v128_t *plaintext, const aes_expanded_key_t *exp_key);

    78 #if 0

    79 /*

    80  * internal functions

    81  */

    83 void

    84 aes_init_sbox(void);

    86 void

    87 aes_compute_tables(void);

    88 #endif

    90 #endif /* _AES_H */

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