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## org.bouncycastle.crypto.modes
Class SICBlockCipher

    java.lang.Object
      org.bouncycastle.crypto.modes.SICBlockCipher

All Implemented Interfaces:
  BlockCipher

public class SICBlockCipher
extends java.lang.Object
implements BlockCipher

Implements the Segmented Integer Counter (SIC) mode on top of a simple block cipher. This mode is also known as CTR mode.

Constructor Summary
`SICBlockCipher(BlockCipher c)` Basic constructor.

Method Summary
`java.lang.String` | `getAlgorithmName()` Return the name of the algorithm the cipher implements.
`int` | `getBlockSize()` Return the block size for this cipher (in bytes).
`BlockCipher` | `getUnderlyingCipher()` return the underlying block cipher that we are wrapping.
`void` | `init(boolean forEncryption, CipherParameters params)` Initialise the cipher.
`int` | `processBlock(byte[] in, int inOff, byte[] out, int outOff)` Process one block of input from the array in and write it to the out array.
`void` | `reset()` Reset the cipher.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SICBlockCipher

    public SICBlockCipher(BlockCipher c)

  Basic constructor.

Parameters:
  `c` - the block cipher to be used.

Method Detail

### getUnderlyingCipher

    public BlockCipher getUnderlyingCipher()

  return the underlying block cipher that we are wrapping.

  Returns:
    the underlying block cipher that we are wrapping.

### init

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

  Description copied from interface: `BlockCipher`
  Initialise the cipher.

  Specified by:
    `init` in interface `BlockCipher`
  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.

  Specified by:
    `getAlgorithmName` in interface `BlockCipher`
  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).

  Specified by:
    `getBlockSize` in interface `BlockCipher`
  Returns:
    the block size for this cipher in bytes.

### 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.

  Specified by:
    `processBlock` in interface `BlockCipher`
  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).

  Specified by:
    `reset` in interface `BlockCipher`

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