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/indra/llmessage/llnullcipher.h

https://bitbucket.org/lindenlab/viewer-beta/
C++ Header | 48 lines | 13 code | 5 blank | 30 comment | 0 complexity | 637474630b365f7e4fd68552c375eb5b MD5 | raw file
 1/** 
 2 * @file llnullcipher.h
 3 *
 4 * $LicenseInfo:firstyear=2003&license=viewerlgpl$
 5 * Second Life Viewer Source Code
 6 * Copyright (C) 2010, Linden Research, Inc.
 7 * 
 8 * This library is free software; you can redistribute it and/or
 9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation;
11 * version 2.1 of the License only.
12 * 
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 * 
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
21 * 
22 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
23 * $/LicenseInfo$
24 */
25
26#ifndef LLNULLCIPHER_H
27#define LLNULLCIPHER_H
28
29#include "llcipher.h"
30
31//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
32// Class LLNullCipher
33//
34// A class which implements LLCipher, but does not transform src
35// during encryption.
36//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37
38class LLNullCipher : public LLCipher
39{
40public:
41	LLNullCipher() {}
42	virtual ~LLNullCipher() {}
43	virtual U32 encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len);
44	virtual U32 decrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len);
45	virtual U32 requiredEncryptionSpace(U32 src_len) const;
46};
47
48#endif