Constructor Detail

• KCTRBlockCipher

  public KCTRBlockCipher​(BlockCipher engine)

Method Detail

• init

  public void init​(boolean forEncryption,
                   CipherParameters params)
            throws java.lang.IllegalArgumentException

  Description copied from interface: BlockCipher
  Initialise the cipher.

  Parameters:

  forEncryption - if true the cipher is initialised for encryption, if false for decryption.

  params - the key and other data required by the cipher.

  Throws:

  java.lang.IllegalArgumentException - if the params argument is inappropriate.

• getAlgorithmName

  public java.lang.String getAlgorithmName()

  Description copied from interface: BlockCipher
  Return the name of the algorithm the cipher implements.

  Returns:

  the name of the algorithm the cipher implements.

• getBlockSize

  public int getBlockSize()

  Description copied from interface: BlockCipher
  Return the block size for this cipher (in bytes).

  Returns:

  the block size for this cipher in bytes.

• calculateByte

  protected byte calculateByte​(byte b)

  Specified by:

  calculateByte in class StreamBlockCipher

• processBlock

  public int processBlock​(byte[] in,
                          int inOff,
                          byte[] out,
                          int outOff)
                   throws DataLengthException,
                          java.lang.IllegalStateException

  Description copied from interface: BlockCipher
  Process one block of input from the array in and write it to the out array.

  Parameters:

  in - the array containing the input data.

  inOff - offset into the in array the data starts at.

  out - the array the output data will be copied into.

  outOff - the offset into the out array the output will start at.

  Returns:

  the number of bytes processed and produced.

  Throws:

  DataLengthException - if there isn't enough data in in, or space in out.

  java.lang.IllegalStateException - if the cipher isn't initialised.

• reset

  public void reset()

  Description copied from interface: BlockCipher
  Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).