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Diffstat (limited to 'benchmarks/CHStone/aes/aes_key.c')
| -rwxr-xr-x | benchmarks/CHStone/aes/aes_key.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/benchmarks/CHStone/aes/aes_key.c b/benchmarks/CHStone/aes/aes_key.c new file mode 100755 index 0000000..cac8412 --- /dev/null +++ b/benchmarks/CHStone/aes/aes_key.c @@ -0,0 +1,163 @@ +/* ++--------------------------------------------------------------------------+ +| CHStone : a suite of benchmark programs for C-based High-Level Synthesis | +| ======================================================================== | +| | +| * Collected and Modified : Y. Hara, H. Tomiyama, S. Honda, | +| H. Takada and K. Ishii | +| Nagoya University, Japan | +| | +| * Remark : | +| 1. This source code is modified to unify the formats of the benchmark | +| programs in CHStone. | +| 2. Test vectors are added for CHStone. | +| 3. If "main_result" is 0 at the end of the program, the program is | +| correctly executed. | +| 4. Please follow the copyright of each benchmark program. | ++--------------------------------------------------------------------------+ +*/ +/* aes_key.c */ +/* + * Copyright (C) 2005 + * Akira Iwata & Masayuki Sato + * Akira Iwata Laboratory, + * Nagoya Institute of Technology in Japan. + * + * All rights reserved. + * + * This software is written by Masayuki Sato. + * And if you want to contact us, send an email to Kimitake Wakayama + * (wakayama@elcom.nitech.ac.jp) + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. All advertising materials mentioning features or use of this software must + * display the following acknowledgment: + * "This product includes software developed by Akira Iwata Laboratory, + * Nagoya Institute of Technology in Japan (http://mars.elcom.nitech.ac.jp/)." + * + * 4. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by Akira Iwata Laboratory, + * Nagoya Institute of Technology in Japan (http://mars.elcom.nitech.ac.jp/)." + * + * THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. + * AKIRA IWATA LABORATORY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, + * IN NO EVENT SHALL AKIRA IWATA LABORATORY BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTUOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +/* **************key generate & key display *******************/ +const int Rcon0[30] = { + 0x01, 0x02, 0x04, 0x08, + 0x10, 0x20, 0x40, 0x80, + 0x1b, 0x36, 0x6c, 0xd8, + 0xab, 0x4d, 0x9a, 0x2f, + 0x5e, 0xbc, 0x63, 0xc6, + 0x97, 0x35, 0x6a, 0xd4, + 0xb3, 0x7d, 0xfa, 0xef, + 0xc5, 0x91, +}; + +/* **************** key expand ************************ */ +int +KeySchedule (int type, int key[32]) +{ + int nk, nb, round_val; + int i, j, temp[4]; + + switch (type) + { + case 128128: + nk = 4; + nb = 4; + round_val = 10; + break; + case 128192: + nk = 4; + nb = 6; + round_val = 12; + break; + case 128256: + nk = 4; + nb = 8; + round_val = 14; + break; + case 192128: + nk = 6; + nb = 4; + round_val = 12; + break; + case 192192: + nk = 6; + nb = 6; + round_val = 12; + break; + case 192256: + nk = 6; + nb = 8; + round_val = 14; + break; + case 256128: + nk = 8; + nb = 4; + round_val = 14; + break; + case 256192: + nk = 8; + nb = 6; + round_val = 14; + break; + case 256256: + nk = 8; + nb = 8; + round_val = 14; + break; + default: + return -1; + } + for (j = 0; j < nk; ++j) + for (i = 0; i < 4; ++i) +/* 0 word */ + word[i][j] = key[i + j * 4]; + +/* expanded key is generated */ + for (j = nk; j < nb * (round_val + 1); ++j) + { + +/* RotByte */ + if ((j % nk) == 0) + { + temp[0] = SubByte (word[1][j - 1]) ^ Rcon0[(j / nk) - 1]; + temp[1] = SubByte (word[2][j - 1]); + temp[2] = SubByte (word[3][j - 1]); + temp[3] = SubByte (word[0][j - 1]); + } + if ((j % nk) != 0) + { + temp[0] = word[0][j - 1]; + temp[1] = word[1][j - 1]; + temp[2] = word[2][j - 1]; + temp[3] = word[3][j - 1]; + } + if (nk > 6 && j % nk == 4) + for (i = 0; i < 4; ++i) + temp[i] = SubByte (temp[i]); + for (i = 0; i < 4; ++i) + word[i][j] = word[i][j - nk] ^ temp[i]; + } + return 0; +} |