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JUCE/modules/juce_cryptography/encryption/juce_BlowFish.h

72 lines
2.2 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef JUCE_BLOWFISH_H_INCLUDED
#define JUCE_BLOWFISH_H_INCLUDED
//==============================================================================
/**
BlowFish encryption class.
*/
class JUCE_API BlowFish
{
public:
//==============================================================================
/** Creates an object that can encode/decode based on the specified key.
The key data can be up to 72 bytes long.
*/
BlowFish (const void* keyData, int keyBytes);
/** Creates a copy of another blowfish object. */
BlowFish (const BlowFish& other);
/** Copies another blowfish object. */
BlowFish& operator= (const BlowFish& other) noexcept;
/** Destructor. */
~BlowFish() noexcept;
//==============================================================================
/** Encrypts a pair of 32-bit integers. */
void encrypt (uint32& data1, uint32& data2) const noexcept;
/** Decrypts a pair of 32-bit integers. */
void decrypt (uint32& data1, uint32& data2) const noexcept;
private:
//==============================================================================
uint32 p[18];
HeapBlock <uint32> s[4];
uint32 F (uint32) const noexcept;
JUCE_LEAK_DETECTOR (BlowFish)
};
#endif // JUCE_BLOWFISH_H_INCLUDED