PandA-2024.02
examples
CHStone
CHStone
aes
aes_key.c
Go to the documentation of this file.
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/*
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+--------------------------------------------------------------------------+
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| CHStone : a suite of benchmark programs for C-based High-Level Synthesis |
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| ======================================================================== |
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| |
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| * Collected and Modified : Y. Hara, H. Tomiyama, S. Honda, |
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| H. Takada and K. Ishii |
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| Nagoya University, Japan |
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| |
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| * Remark : |
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| 1. This source code is modified to unify the formats of the benchmark |
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| programs in CHStone. |
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| 2. Test vectors are added for CHStone. |
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| 3. If "main_result" is 0 at the end of the program, the program is |
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| correctly executed. |
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| 4. Please follow the copyright of each benchmark program. |
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+--------------------------------------------------------------------------+
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*/
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/* aes_key.c */
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/*
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* Copyright (C) 2005
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* Akira Iwata & Masayuki Sato
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* Akira Iwata Laboratory,
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* Nagoya Institute of Technology in Japan.
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*
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* All rights reserved.
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*
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* This software is written by Masayuki Sato.
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* And if you want to contact us, send an email to Kimitake Wakayama
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* (wakayama@elcom.nitech.ac.jp)
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software must
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* display the following acknowledgment:
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* "This product includes software developed by Akira Iwata Laboratory,
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* Nagoya Institute of Technology in Japan (http://mars.elcom.nitech.ac.jp/)."
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*
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* 4. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by Akira Iwata Laboratory,
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* Nagoya Institute of Technology in Japan (http://mars.elcom.nitech.ac.jp/)."
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
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* AKIRA IWATA LABORATORY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
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* IN NO EVENT SHALL AKIRA IWATA LABORATORY BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTUOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/* **************key generate & key display *******************/
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const
int
Rcon0
[30] = {
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0x01, 0x02, 0x04, 0x08,
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0x10, 0x20, 0x40, 0x80,
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0x1b, 0x36, 0x6c, 0xd8,
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0xab, 0x4d, 0x9a, 0x2f,
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0x5e, 0xbc, 0x63, 0xc6,
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0x97, 0x35, 0x6a, 0xd4,
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0xb3, 0x7d, 0xfa, 0xef,
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0xc5, 0x91,
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};
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/* **************** key expand ************************ */
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int
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KeySchedule
(
int
type
,
int
key
[32])
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{
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int
nk,
nb
,
round_val
;
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int
i, j, temp[4];
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switch
(type)
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{
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case
128128:
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nk = 4;
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nb = 4;
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round_val = 10;
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break
;
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case
128192:
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nk = 4;
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nb = 6;
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round_val = 12;
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break
;
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case
128256:
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nk = 4;
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nb = 8;
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round_val = 14;
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break
;
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case
192128:
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nk = 6;
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nb = 4;
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round_val = 12;
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break
;
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case
192192:
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nk = 6;
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nb = 6;
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round_val = 12;
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break
;
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case
192256:
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nk = 6;
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nb = 8;
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round_val = 14;
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break
;
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case
256128:
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nk = 8;
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nb = 4;
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round_val = 14;
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break
;
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case
256192:
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nk = 8;
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nb = 6;
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round_val = 14;
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break
;
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case
256256:
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nk = 8;
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nb = 8;
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round_val = 14;
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break
;
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default
:
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return
-1;
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}
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for
(j = 0; j < nk; ++j)
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for
(i = 0; i < 4; ++i)
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/* 0 word */
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word
[i][j] = key[i + j * 4];
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/* expanded key is generated */
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for
(j = nk; j < nb * (round_val + 1); ++j)
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{
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/* RotByte */
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if
((j % nk) == 0)
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{
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temp[0] =
SubByte
(
word
[1][j - 1]) ^
Rcon0
[(j / nk) - 1];
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temp[1] =
SubByte
(
word
[2][j - 1]);
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temp[2] =
SubByte
(
word
[3][j - 1]);
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temp[3] =
SubByte
(
word
[0][j - 1]);
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}
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if
((j % nk) != 0)
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{
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temp[0] =
word
[0][j - 1];
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temp[1] =
word
[1][j - 1];
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temp[2] =
word
[2][j - 1];
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temp[3] =
word
[3][j - 1];
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}
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if
(nk > 6 && j % nk == 4)
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for
(i = 0; i < 4; ++i)
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temp[i] =
SubByte
(temp[i]);
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for
(i = 0; i < 4; ++i)
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word
[i][j] =
word
[i][j - nk] ^ temp[i];
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}
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return
0;
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}
Rcon0
const int Rcon0[30]
Definition:
aes_key.c:64
test_panda.type
type
Definition:
test_panda.py:447
round_val
int round_val
Definition:
aes.h:66
key
int key[32]
Definition:
aes.h:67
SubByte
int SubByte(int)
Definition:
aes_func.c:246
nb
int nb
Definition:
aes.h:65
KeySchedule
int KeySchedule(int type, int key[32])
Definition:
aes_key.c:77
word
short word
Definition:
private.h:30
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