mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
349807608f
This was done by the following
find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
print unless $. == 1 && m@/\* .*\.[ch] \*/@;
close ARGV if eof; # Close file to reset $.
And then some hand-editing of other files.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
110 lines
4.3 KiB
C
110 lines
4.3 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
|
* All rights reserved.
|
|
*
|
|
* This package is an SSL implementation written
|
|
* by Eric Young (eay@cryptsoft.com).
|
|
* 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@cryptsoft.com).
|
|
*
|
|
* 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@cryptsoft.com)"
|
|
* 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@cryptsoft.com)"
|
|
*
|
|
* 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.]
|
|
*/
|
|
|
|
#include <openssl/rc5.h>
|
|
#include "rc5_locl.h"
|
|
|
|
void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
|
|
int rounds)
|
|
{
|
|
RC5_32_INT L[64], l, ll, A, B, *S, k;
|
|
int i, j, m, c, t, ii, jj;
|
|
|
|
if ((rounds != RC5_16_ROUNDS) &&
|
|
(rounds != RC5_12_ROUNDS) && (rounds != RC5_8_ROUNDS))
|
|
rounds = RC5_16_ROUNDS;
|
|
|
|
key->rounds = rounds;
|
|
S = &(key->data[0]);
|
|
j = 0;
|
|
for (i = 0; i <= (len - 8); i += 8) {
|
|
c2l(data, l);
|
|
L[j++] = l;
|
|
c2l(data, l);
|
|
L[j++] = l;
|
|
}
|
|
ii = len - i;
|
|
if (ii) {
|
|
k = len & 0x07;
|
|
c2ln(data, l, ll, k);
|
|
L[j + 0] = l;
|
|
L[j + 1] = ll;
|
|
}
|
|
|
|
c = (len + 3) / 4;
|
|
t = (rounds + 1) * 2;
|
|
S[0] = RC5_32_P;
|
|
for (i = 1; i < t; i++)
|
|
S[i] = (S[i - 1] + RC5_32_Q) & RC5_32_MASK;
|
|
|
|
j = (t > c) ? t : c;
|
|
j *= 3;
|
|
ii = jj = 0;
|
|
A = B = 0;
|
|
for (i = 0; i < j; i++) {
|
|
k = (S[ii] + A + B) & RC5_32_MASK;
|
|
A = S[ii] = ROTATE_l32(k, 3);
|
|
m = (int)(A + B);
|
|
k = (L[jj] + A + B) & RC5_32_MASK;
|
|
B = L[jj] = ROTATE_l32(k, m);
|
|
if (++ii >= t)
|
|
ii = 0;
|
|
if (++jj >= c)
|
|
jj = 0;
|
|
}
|
|
}
|