XChaCha20Engine (paseto4j-version4 2024.3 API)

java.lang.Object
- org.bouncycastle.crypto.engines.Salsa20Engine
- - org.bouncycastle.crypto.engines.ChaChaEngine
  - - org.paseto4j.version4.XChaCha20Engine

All Implemented Interfaces:

org.bouncycastle.crypto.SkippingCipher, org.bouncycastle.crypto.SkippingStreamCipher, org.bouncycastle.crypto.StreamCipher
```
public class XChaCha20Engine
extends org.bouncycastle.crypto.engines.ChaChaEngine
```
Taken from dangling PR https://github.com/bcgit/bc-java/pull/957

Field Summary
- Fields inherited from class org.bouncycastle.crypto.engines.Salsa20Engine
  DEFAULT_ROUNDS, engineState, rounds, sigma, tau, x

Constructor Summary

Constructors
Constructor Description

XChaCha20Engine()
Create a new XChaCha20 engine.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getAlgorithmName()`
`protected int`	`getNonceSize()`
`int[]`	`hChaChaDeriveSubKey(byte[] keyBytes, byte[] ivBytes)`
`protected void`	`setKey(byte[] keyBytes, byte[] ivBytes)`

Methods inherited from class org.bouncycastle.crypto.engines.ChaChaEngine
advanceCounter, advanceCounter, chachaCore, generateKeyStream, getCounter, resetCounter, retreatCounter, retreatCounter

Methods inherited from class org.bouncycastle.crypto.engines.Salsa20Engine
getPosition, init, packTauOrSigma, processBytes, reset, returnByte, salsaCore, seekTo, skip

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

- Constructor Detail
  - XChaCha20Engine
```
public XChaCha20Engine()
```
    Create a new XChaCha20 engine.
- Method Detail
  - getAlgorithmName
```
public String getAlgorithmName()
```
    Specified by:
    
    getAlgorithmName in interface org.bouncycastle.crypto.StreamCipher
    
    Overrides:
    
    getAlgorithmName in class org.bouncycastle.crypto.engines.ChaChaEngine
  - getNonceSize
```
protected int getNonceSize()
```
    Overrides:
    
    getNonceSize in class org.bouncycastle.crypto.engines.Salsa20Engine
  - setKey
```
protected void setKey(byte[] keyBytes,
                      byte[] ivBytes)
```
    Overrides:
    
    setKey in class org.bouncycastle.crypto.engines.ChaChaEngine
  - hChaChaDeriveSubKey
```
public int[] hChaChaDeriveSubKey(byte[] keyBytes,
                                 byte[] ivBytes)
```