llblowfishcipher.h
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- /**
- * @file llblowfishcipher.h
- * @brief A symmetric block cipher, designed in 1993 by Bruce Schneier.
- * We use it because it has an 8 byte block size, allowing encryption of
- * two UUIDs and a timestamp (16x2 + 4 = 36 bytes) with only 40 bytes of
- * output. AES has a block size of 32 bytes, so this would require 64 bytes.
- *
- * $LicenseInfo:firstyear=2007&license=viewergpl$
- *
- * Copyright (c) 2007-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LLBLOWFISHCIPHER_H
- #define LLBLOWFISHCIPHER_H
- #include "llcipher.h"
- class LLBlowfishCipher : public LLCipher
- {
- public:
- // Secret may be up to 56 bytes in length per Blowfish spec.
- LLBlowfishCipher(const U8* secret, size_t secret_size);
- virtual ~LLBlowfishCipher();
- // See llcipher.h for documentation.
- /*virtual*/ U32 encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len);
- /*virtual*/ U32 decrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len);
- /*virtual*/ U32 requiredEncryptionSpace(U32 src_len) const;
- #ifdef _DEBUG
- static BOOL testHarness();
- #endif
- private:
- U8* mSecret;
- size_t mSecretSize;
- };
- #endif // LL_LLCRYPTO_H