java.lang.Object
- org.bouncycastle.crypto.engines.Zuc128CoreEngine
- - org.bouncycastle.crypto.engines.Zuc256CoreEngine

All Implemented Interfaces:

StreamCipher, Memoable

Direct Known Subclasses:

Zuc256Engine
```
public class Zuc256CoreEngine
extends Zuc128CoreEngine
```
Zuc256 implementation. Based on https://www.is.cas.cn/ztzl2016/zouchongzhi/201801/W020180126529970733243.pdf

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`Zuc256CoreEngine()`	Constructor for streamCipher.
`protected`	`Zuc256CoreEngine(int pLength)`	Constructor for Mac.
`protected`	`Zuc256CoreEngine(Zuc256CoreEngine pSource)`	Constructor for Memoable.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Memoable`	`copy()`	Create a copy of the engine.
`java.lang.String`	`getAlgorithmName()`	Obtain Algorithm Name.
`protected int`	`getMaxIterations()`	Obtain Max iterations.
`void`	`reset(Memoable pState)`	Reset from saved engine state.
`protected void`	`setKeyAndIV(int[] pLFSR, byte[] k, byte[] iv)`	Process key and IV into LFSR.

Methods inherited from class org.bouncycastle.crypto.engines.Zuc128CoreEngine
encode32be, init, makeKeyStreamWord, processBytes, reset, returnByte

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

- Constructor Detail
  - Zuc256CoreEngine
```
protected Zuc256CoreEngine()
```
    Constructor for streamCipher.
  - Zuc256CoreEngine
```
protected Zuc256CoreEngine(int pLength)
```
    Constructor for Mac.
    
    Parameters:
    
    pLength - the Mac length
  - Zuc256CoreEngine
```
protected Zuc256CoreEngine(Zuc256CoreEngine pSource)
```
    Constructor for Memoable.
    
    Parameters:
    
    pSource - the source engine
- Method Detail
  - getMaxIterations
```
protected int getMaxIterations()
```
    Obtain Max iterations.
    
    Overrides:
    
    getMaxIterations in class Zuc128CoreEngine
    
    Returns:
    
    the maximum iterations
  - getAlgorithmName
```
public java.lang.String getAlgorithmName()
```
    Obtain Algorithm Name.
    
    Specified by:
    
    getAlgorithmName in interface StreamCipher
    
    Overrides:
    
    getAlgorithmName in class Zuc128CoreEngine
    
    Returns:
    
    the name
  - setKeyAndIV
```
protected void setKeyAndIV(int[] pLFSR,
                           byte[] k,
                           byte[] iv)
```
    Process key and IV into LFSR.
    
    Overrides:
    
    setKeyAndIV in class Zuc128CoreEngine
    
    Parameters:
    
    pLFSR - the LFSR
    
    k - the key
    
    iv - the iv
  - copy
```
public Memoable copy()
```
    Create a copy of the engine.
    
    Specified by:
    
    copy in interface Memoable
    
    Overrides:
    
    copy in class Zuc128CoreEngine
    
    Returns:
    
    the copy
  - reset
```
public void reset(Memoable pState)
```
    Reset from saved engine state.
    
    Specified by:
    
    reset in interface Memoable
    
    Overrides:
    
    reset in class Zuc128CoreEngine
    
    Parameters:
    
    pState - the state to restore

Class Zuc256CoreEngine

Constructor Summary

Method Summary

Methods inherited from class org.bouncycastle.crypto.engines.Zuc128CoreEngine

Methods inherited from class java.lang.Object

Constructor Detail

Zuc256CoreEngine

Zuc256CoreEngine

Zuc256CoreEngine

Method Detail

getMaxIterations

getAlgorithmName

setKeyAndIV

copy

reset