From da01822671b3a553fd805315df7322b8225cfe95 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Wed, 24 Sep 2008 16:04:43 +0200 Subject: Use common arcfour implementation. --- source3/lib/arc4.c | 79 ------------------------------------------------------ 1 file changed, 79 deletions(-) delete mode 100644 source3/lib/arc4.c (limited to 'source3/lib/arc4.c') diff --git a/source3/lib/arc4.c b/source3/lib/arc4.c deleted file mode 100644 index af2564b6c0..0000000000 --- a/source3/lib/arc4.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - An implementation of arc4. - - Copyright (C) Jeremy Allison 2005. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#include "includes.h" - -/***************************************************************** - Initialize state for an arc4 crypt/decrpyt. - arc4 state is 258 bytes - last 2 bytes are the index bytes. -*****************************************************************/ - -void smb_arc4_init(unsigned char arc4_state_out[258], const unsigned char *key, size_t keylen) -{ - size_t ind; - unsigned char j = 0; - - for (ind = 0; ind < 256; ind++) { - arc4_state_out[ind] = (unsigned char)ind; - } - - for( ind = 0; ind < 256; ind++) { - unsigned char tc; - - j += (arc4_state_out[ind] + key[ind%keylen]); - - tc = arc4_state_out[ind]; - arc4_state_out[ind] = arc4_state_out[j]; - arc4_state_out[j] = tc; - } - arc4_state_out[256] = 0; - arc4_state_out[257] = 0; -} - -/***************************************************************** - Do the arc4 crypt/decrpyt. - arc4 state is 258 bytes - last 2 bytes are the index bytes. -*****************************************************************/ - -void smb_arc4_crypt(unsigned char arc4_state_inout[258], unsigned char *data, size_t len) -{ - unsigned char index_i = arc4_state_inout[256]; - unsigned char index_j = arc4_state_inout[257]; - size_t ind; - - for( ind = 0; ind < len; ind++) { - unsigned char tc; - unsigned char t; - - index_i++; - index_j += arc4_state_inout[index_i]; - - tc = arc4_state_inout[index_i]; - arc4_state_inout[index_i] = arc4_state_inout[index_j]; - arc4_state_inout[index_j] = tc; - - t = arc4_state_inout[index_i] + arc4_state_inout[index_j]; - data[ind] = data[ind] ^ arc4_state_inout[t]; - } - - arc4_state_inout[256] = index_i; - arc4_state_inout[257] = index_j; -} -- cgit