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Diffstat (limited to 'benchmarks/CHStone/blowfish/bf_cfb64.c')
| -rwxr-xr-x | benchmarks/CHStone/blowfish/bf_cfb64.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/benchmarks/CHStone/blowfish/bf_cfb64.c b/benchmarks/CHStone/blowfish/bf_cfb64.c new file mode 100755 index 0000000..25fd9f2 --- /dev/null +++ b/benchmarks/CHStone/blowfish/bf_cfb64.c @@ -0,0 +1,151 @@ +/* ++--------------------------------------------------------------------------+ +| 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. | ++--------------------------------------------------------------------------+ +*/ +/* crypto/bf/bf_cfb64.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@mincom.oz.au). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@mincom.oz.au). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@mincom.oz.au)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* The input and output encrypted as though 64bit cfb mode is being + * used. The extra state information to record how much of the + * 64bit block we have used is contained in *num; + */ + +void +BF_cfb64_encrypt (in, out, length, ivec, num, encrypt) + unsigned char *in; + unsigned char *out; + long length; + unsigned char *ivec; + int *num; + int encrypt; +{ + register BF_LONG v0, v1, t; + register int n; + register long l; + BF_LONG ti[2]; + unsigned char *iv, c, cc; + + n = *num; + l = length; + iv = (unsigned char *) ivec; + if (encrypt) + { + while (l--) + { + if (n == 0) + { + n2l (iv, v0); + ti[0] = v0; + n2l (iv, v1); + ti[1] = v1; + BF_encrypt ((unsigned long *) ti, BF_ENCRYPT); + iv = (unsigned char *) ivec; + t = ti[0]; + l2n (t, iv); + t = ti[1]; + l2n (t, iv); + + iv = (unsigned char *) ivec; + } + c = *(in++) ^ iv[n]; + *(out++) = c; + iv[n] = c; + n = (n + 1) & 0x07; + } + } + else + { + while (l--) + { + if (n == 0) + { + n2l (iv, v0); + ti[0] = v0; + n2l (iv, v1); + ti[1] = v1; + BF_encrypt ((unsigned long *) ti, BF_ENCRYPT); + iv = (unsigned char *) ivec; + t = ti[0]; + l2n (t, iv); + t = ti[1]; + l2n (t, iv); + iv = (unsigned char *) ivec; + } + cc = *(in++); + c = iv[n]; + iv[n] = cc; + *(out++) = c ^ cc; + n = (n + 1) & 0x07; + } + } + v0 = v1 = ti[0] = ti[1] = t = c = cc = 0; + *num = n; +} |