Package org.jastacry.layer

Class AesCtrLayer

java.lang.Object

org.jastacry.layer.AbstractBasicLayer

org.jastacry.layer.AesCtrLayer

All Implemented Interfaces:

Runnable, Layer

public class AesCtrLayer
extends AbstractBasicLayer

AES Layer class.

SPDX-License-Identifier: MIT

Author:

Kai Kretschmann

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	BITSPERBYTE	How many bits in a byte.
protected char[]	chPasswd	char array of password.
protected int	currentKeysize	Key size as defined by child class.
protected int	iterCount	Iterations count as defined by child class.
protected SecretKeyFactory	keyFac	SecretKeyFactory.
protected SecretKey	pbeKey	SecretKey.
protected PBEKeySpec	pbeKeySpec	PBEKeySpec.
protected SecretKeySpec	pbeSecretKeySpec	SecretKeySpec.
protected byte[]	salt	salt.
protected String	strKeyAlg	Algorithm for the key.

Fields inherited from class org.jastacry.layer.AbstractBasicLayer

endController, inputStream, logger, outputStream

Constructor Summary

Constructors

Constructor	Description
AesCtrLayer()	Constructor of AesLayer.

Method Summary

Modifier and Type	Method	Description
void	decStream(InputStream inputStream, OutputStream outputStream)	decode Stream function.
void	encodeAndDecode(InputStream inputStream, OutputStream outputStream)	Local encode Stream function which does the real thing for Random Layer.
void	encStream(InputStream inputStream, OutputStream outputStream)	encode Stream function.
boolean	equals(Object o)	Override equals method from object class.
protected String	getMyAlg()	Abstract base method for getting algorithm name back.
protected int	getMyCount()	Abstract base method for getting a counter back.
protected int	getMyIvLen()	Abstract base method for getting IV length back.
protected String	getMyKeyAlg()	Abstract base method for getting key algorithm name back.
protected int	getMyKeysize()	Abstract base method for getting key size back.
protected int	getMySaltLen()	Abstract base method for getting salt len back.
int	hashCode()	Override equals method from object class.
protected void	init()	Set base values via own getters, which are defined in child classes.
void	init(String data)	init function.
protected void	setupPbe()	Generate Keys from plain password.

Methods inherited from class org.jastacry.layer.AbstractBasicLayer

progress, rangeCheck, readAllBytes, run, setAction, setEndController, setInputStream, setOutputStream, setRealLayerName, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

BITSPERBYTE

protected static final int BITSPERBYTE

How many bits in a byte.

See Also:

Constant Field Values

pbeKeySpec

protected PBEKeySpec pbeKeySpec

PBEKeySpec.

keyFac

protected SecretKeyFactory keyFac

SecretKeyFactory.

pbeKey

protected SecretKey pbeKey

SecretKey.

pbeSecretKeySpec

protected SecretKeySpec pbeSecretKeySpec

SecretKeySpec.

strKeyAlg

protected String strKeyAlg

Algorithm for the key.

chPasswd

protected char[] chPasswd

char array of password.

iterCount

protected int iterCount

Iterations count as defined by child class.

currentKeysize

protected int currentKeysize

Key size as defined by child class.

salt

protected byte[] salt

salt.

Constructor Detail

AesCtrLayer

public AesCtrLayer()

Constructor of AesLayer.

Method Detail

setupPbe

protected final void setupPbe()
                       throws JastacryException

Generate Keys from plain password.

Throws:

JastacryException - on error

init

public final void init(String data)

init function. Overrides base init but uses it for setting base values.

Parameters:

data - to initialize the crypt value.

getMyAlg

protected final String getMyAlg()

Abstract base method for getting algorithm name back.

Returns:

String

getMyKeyAlg

protected final String getMyKeyAlg()

Abstract base method for getting key algorithm name back.

Returns:

String

getMySaltLen

protected int getMySaltLen()

Abstract base method for getting salt len back.

Returns:

int length

getMyIvLen

protected int getMyIvLen()

Abstract base method for getting IV length back.

Returns:

int length

getMyCount

protected int getMyCount()

Abstract base method for getting a counter back.

Returns:

int

getMyKeysize

protected int getMyKeysize()

Abstract base method for getting key size back.

Returns:

int length

equals

public boolean equals(Object o)

Override equals method from object class.

Overrides:

equals in class Object

Parameters:

o - object to compare with

Returns:

true or false

hashCode

public int hashCode()

Override equals method from object class.

Overrides:

hashCode in class Object

Returns:

hash of properties

init

protected final void init()

Set base values via own getters, which are defined in child classes.

encStream

public final void encStream(InputStream inputStream,
                            OutputStream outputStream)
                     throws JastacryException

encode Stream function.

Parameters:

inputStream - incoming data

outputStream - outgoing data

Throws:

JastacryException - thrown on error

decStream

public final void decStream(InputStream inputStream,
                            OutputStream outputStream)
                     throws JastacryException

decode Stream function.

Parameters:

inputStream - incoming data

outputStream - outgoing data

Throws:

JastacryException - thrown on error

encodeAndDecode

public final void encodeAndDecode(InputStream inputStream,
                                  OutputStream outputStream)
                           throws JastacryException

Description copied from interface: Layer

Local encode Stream function which does the real thing for Random Layer.

Parameters:

inputStream - incoming data

outputStream - outgoing data

Throws:

JastacryException - thrown on error