TweakableBlockCipherParameters (Bouncy Castle Library 1.85 API Specification)
Date: 2026-07-12

org.bouncycastle.crypto.params

## Class TweakableBlockCipherParameters

- java.lang.Object
- - org.bouncycastle.crypto.params.TweakableBlockCipherParameters

- All Implemented Interfaces:
    CipherParameters

      public class TweakableBlockCipherParameters
      extends java.lang.Object
      implements CipherParameters

  Parameters for tweakable block ciphers.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `TweakableBlockCipherParameters(KeyParameter key, byte[] tweak)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `KeyParameter` | `getKey()` Gets the key.
    `byte[]` | `getTweak()` Gets the tweak value.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### TweakableBlockCipherParameters

          public TweakableBlockCipherParameters(KeyParameter key,
                                                byte[] tweak)

  - ### Method Detail

    - #### getKey

          public KeyParameter getKey()

      Gets the key.
      Returns:
        the key to use, or `null` to use the current key.

    - #### getTweak

          public byte[] getTweak()

      Gets the tweak value.
      Returns:
        the tweak to use, or `null` to use the current tweak.