text: /*
    ==============================================================================
  
     This file is part of the JUCE library.
     Copyright (c) 2017 - ROLI Ltd.
  
     JUCE is an open source library subject to commercial or open-source
     licensing.
  
     By using JUCE, you agree to the terms of both the JUCE 5 End-User License
     Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
     27th April 2017).
  
     End User License Agreement: www.juce.com/juce-5-licence
     Privacy Policy: www.juce.com/juce-5-privacy-policy
  
     Or: You may also use this code under the terms of the GPL v3 (see
     www.gnu.org/licenses).
  
     JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
     EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
     DISCLAIMED.
  
    ==============================================================================
  */
  
  namespace juce
  {
  
  //==============================================================================
  /**
      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&);
  
      /** Copies another blowfish object. */
      BlowFish& operator= (const BlowFish&) 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;
  
      //==============================================================================
      /** Encrypts a memory block */
      void encrypt (MemoryBlock& data) const;
  
      /** Decrypts a memory block */
      void decrypt (MemoryBlock& data) const;
  
      //==============================================================================
      /** Encrypts data in-place
  
          @param buffer       The message that should be encrypted. See bufferSize on size
                              requirements!
          @param sizeOfMsg    The size of the message that should be encrypted in bytes
          @param bufferSize   The size of the buffer in bytes. To accomadate the encypted
                              data, the buffer must be larger than the message: the size of
                              the buffer needs to be equal or greater than the size of the
                              message in bytes rounded to the next integer which is divisable
                              by eight. If the message size in bytes is already divisable by eight
                              then you need to add eight bytes to the buffer size. If in doubt
                              simply use bufferSize = sizeOfMsg + 8.
  
          @returns            The size of the decrypted data in bytes or -1 if the decryption failed.
       */
      int encrypt (void* buffer, size_t sizeOfMsg, size_t bufferSize) const noexcept;
  
      /** Decrypts data in-place
  
          @param buffer  The encrypted data that should be decrypted
          @param bytes   The size of the encrypted data in bytes
  
          @returns       The size of the decrypted data in bytes or -1 if the decryption failed.
      */
      int decrypt (void* buffer, size_t bytes) const noexcept;
  
  private:
      //==============================================================================
      static int pad   (void*, size_t, size_t) noexcept;
      static int unpad (const void*, size_t) noexcept;
  
      bool apply (void*, size_t, void (BlowFish::*op) (uint32&, uint32&) const) const;
  
      //==============================================================================
      uint32 p[18];
      HeapBlock<uint32> s[4];
  
      uint32 F (uint32) const noexcept;
  
      JUCE_LEAK_DETECTOR (BlowFish)
  };
  
  } // namespace juce
  