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Henrik (Grubba) Grubbström authored
Added copy_type() & free_type() for the same reason. f_cast() now expects a value of type type as the first argument. Rev: src/builtin_functions.c:1.342 Rev: src/constants.c:1.25 Rev: src/constants.h:1.16 Rev: src/docode.c:1.104 Rev: src/global.h:1.57 Rev: src/interpret.h:1.77 Rev: src/interpret_functions.h:1.45 Rev: src/language.yacc:1.224 Rev: src/las.c:1.234 Rev: src/las.h:1.47 Rev: src/opcodes.c:1.99 Rev: src/opcodes.h:1.12 Rev: src/pike_types.c:1.147 Rev: src/pike_types.h:1.48 Rev: src/program.c:1.295 Rev: src/program.h:1.116 Rev: src/svalue.h:1.76 Rev: src/treeopt.in:1.56
Henrik (Grubba) Grubbström authoredAdded copy_type() & free_type() for the same reason. f_cast() now expects a value of type type as the first argument. Rev: src/builtin_functions.c:1.342 Rev: src/constants.c:1.25 Rev: src/constants.h:1.16 Rev: src/docode.c:1.104 Rev: src/global.h:1.57 Rev: src/interpret.h:1.77 Rev: src/interpret_functions.h:1.45 Rev: src/language.yacc:1.224 Rev: src/las.c:1.234 Rev: src/las.h:1.47 Rev: src/opcodes.c:1.99 Rev: src/opcodes.h:1.12 Rev: src/pike_types.c:1.147 Rev: src/pike_types.h:1.48 Rev: src/program.c:1.295 Rev: src/program.h:1.116 Rev: src/svalue.h:1.76 Rev: src/treeopt.in:1.56
arcfour-crypt.c 1.43 KiB
/* arcfour-crypt.c
*
* The arcfour/rc4 stream cipher.
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2001, 2004 Niels Möller
*
* The nettle library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The nettle library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02111-1301, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include "arcfour.h"
void
arcfour_crypt(struct arcfour_ctx *ctx,
size_t length, uint8_t *dst,
const uint8_t *src)
{
register uint8_t i, j;
register int si, sj;
i = ctx->i; j = ctx->j;
while(length--)
{
i++; i &= 0xff;
si = ctx->S[i];
j += si; j &= 0xff;
sj = ctx->S[i] = ctx->S[j];
ctx->S[j] = si;
*dst++ = *src++ ^ ctx->S[ (si + sj) & 0xff ];
}
ctx->i = i; ctx->j = j;
}