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

org.bouncycastle.crypto.params

## Class KeyParameter

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

- All Implemented Interfaces:
    CipherParameters
  Direct Known Subclasses:
    DESParameters, RC2Parameters

      public class KeyParameter
      extends java.lang.Object
      implements CipherParameters

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `KeyParameter(byte[] key)`
    `KeyParameter(byte[] key, int keyOff, int keyLen)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `copyTo(byte[] buf, int off, int len)`
    `byte[]` | `getKey()`
    `int` | `getKeyLength()`
    `KeyParameter` | `reverse()`

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

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

- - ### Constructor Detail

    - #### KeyParameter

          public KeyParameter(byte[] key)

    - #### KeyParameter

          public KeyParameter(byte[] key,
                              int keyOff,
                              int keyLen)

  - ### Method Detail

    - #### copyTo

          public void copyTo(byte[] buf,
                             int off,
                             int len)

    - #### getKey

          public byte[] getKey()

    - #### getKeyLength

          public int getKeyLength()

    - #### reverse

          public KeyParameter reverse()