com.sshtools.common.ssh.components.jce

Class ChaCha20Poly1305.ChaCha20

java.lang.Object

com.sshtools.common.ssh.components.jce.ChaCha20Poly1305.ChaCha20

Enclosing class:

ChaCha20Poly1305

public static class ChaCha20Poly1305.ChaCha20
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ChaCha20Poly1305.ChaCha20.WrongKeySizeException
class	ChaCha20Poly1305.ChaCha20.WrongNonceSizeException

Field Summary

Fields

Modifier and Type	Field and Description
static int	KEY_SIZE
static int	NONCE_SIZE_IETF
static int	NONCE_SIZE_REF

Constructor Summary

Constructors

Constructor and Description
ChaCha20(byte[] key, byte[] nonce, int counter)

Method Summary

Modifier and Type	Method and Description
void	encrypt(byte[] dst, int doff, byte[] src, int soff, int len)
protected void	quarterRound(int[] x, int a, int b, int c, int d)
protected int	ROTATE(int v, int c)

Methods inherited from class java.lang.Object

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

Field Detail

KEY_SIZE

public static final int KEY_SIZE

See Also:

Constant Field Values

NONCE_SIZE_REF

public static final int NONCE_SIZE_REF

See Also:

Constant Field Values

NONCE_SIZE_IETF

public static final int NONCE_SIZE_IETF

See Also:

Constant Field Values

Constructor Detail

ChaCha20

public ChaCha20(byte[] key,
                byte[] nonce,
                int counter)
         throws ChaCha20Poly1305.ChaCha20.WrongKeySizeException,
                ChaCha20Poly1305.ChaCha20.WrongNonceSizeException

Throws:

ChaCha20Poly1305.ChaCha20.WrongKeySizeException

ChaCha20Poly1305.ChaCha20.WrongNonceSizeException

Method Detail

ROTATE

protected int ROTATE(int v,
                     int c)

quarterRound

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

encrypt

public void encrypt(byte[] dst,
                    int doff,
                    byte[] src,
                    int soff,
                    int len)