Package org.apache.sshd.common.cipher

Class ChaCha20Cipher.ChaChaEngine

java.lang.Object

org.apache.sshd.common.cipher.ChaCha20Cipher.ChaChaEngine

Enclosing class:

ChaCha20Cipher

protected static class ChaCha20Cipher.ChaChaEngine
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected int[]	engineState
protected long	initialNonce
protected byte[]	nonce
protected int[]	x

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ChaChaEngine()

Method Summary

Modifier and Type	Method	Description
protected void	advanceNonce()
protected static void	columnRound(int[] state)
protected void	crypt(byte[] in, int offset, int length, byte[] out, int outOffset)
protected static void	diagonalRound(int[] state)
protected void	initCounter(long counter)
protected void	initKey(byte[] key)
protected void	initNonce(byte[] nonce)
protected static void	permute(int[] state)
protected byte[]	polyKey()
protected static void	quarterRound(int[] state, int a, int b, int c, int d)

Methods inherited from class java.lang.Object

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

Field Detail

x

protected final int[] x

engineState

protected final int[] engineState

nonce

protected final byte[] nonce

initialNonce

protected long initialNonce

Constructor Detail

ChaChaEngine

protected ChaChaEngine()

Method Detail

initKey

protected void initKey(byte[] key)

initNonce

protected void initNonce(byte[] nonce)

advanceNonce

protected void advanceNonce()

initCounter

protected void initCounter(long counter)

crypt

protected void crypt(byte[] in,
                     int offset,
                     int length,
                     byte[] out,
                     int outOffset)

polyKey

protected byte[] polyKey()

permute

protected static void permute(int[] state)

columnRound

protected static void columnRound(int[] state)

diagonalRound

protected static void diagonalRound(int[] state)

quarterRound

protected static void quarterRound(int[] state,
                                   int a,
                                   int b,
                                   int c,
                                   int d)