java.lang.Object
- org.jastacry.layer.AbstractBasicLayer
- - org.jastacry.layer.AbstractCipherLayer

All Implemented Interfaces:

java.lang.Runnable, Layer

Direct Known Subclasses:

AesCbcLayer, AesCtrLayer, AesEcbLayer, Md5DesLayer
```
public abstract class AbstractCipherLayer
extends AbstractBasicLayer
```
Abstract base class for encryption.
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`	`currentIvLen`	IV length.
`protected int`	`currentKeysize`	Key size as defined by child class.
`protected int`	`currentSaltLen`	Salt length.
`protected int`	`iterCount`	Iterations count as defined by child class.
`protected byte[]`	`ivBytes`	IV bytes.
`protected javax.crypto.SecretKeyFactory`	`keyFac`	SecretKeyFactory.
`protected javax.crypto.SecretKey`	`pbeKey`	SecretKey.
`protected javax.crypto.spec.PBEKeySpec`	`pbeKeySpec`	PBEKeySpec.
`protected javax.crypto.spec.SecretKeySpec`	`pbeSecretKeySpec`	SecretKeySpec.
`protected byte[]`	`salt`	salt.
`protected java.lang.String`	`strAlg`	ALG for the data.
`protected java.lang.String`	`strKeyAlg`	Algorithm for the key.

Fields inherited from class org.jastacry.layer.AbstractBasicLayer
endController, inputStream, logger, outputStream

Constructor Summary

Constructors
Constructor Description

AbstractCipherLayer(java.lang.Class<?> cClass, java.lang.String layerName)
Constructor of abstract class.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`decStream(java.io.InputStream inputStream, java.io.OutputStream outputStream)`	decode Stream function.
`void`	`encodeAndDecode(java.io.InputStream inputStream, java.io.OutputStream outputStream)`	Local encode Stream function which does the real thing for Random Layer.
`void`	`encStream(java.io.InputStream inputStream, java.io.OutputStream outputStream)`	encode Stream function.
`protected void`	`getIv()`	store IV bytes.
`protected abstract java.lang.String`	`getMyAlg()`	Abstract base method for getting algorithm name back.
`protected abstract int`	`getMyCount()`	Abstract base method for getting a counter back.
`protected abstract int`	`getMyIvLen()`	Abstract base method for getting IV length back.
`protected abstract java.lang.String`	`getMyKeyAlg()`	Abstract base method for getting key algorithm name back.
`protected abstract int`	`getMyKeysize()`	Abstract base method for getting key size back.
`protected abstract int`	`getMySaltLen()`	Abstract base method for getting salt len back.
`protected void`	`getSalt()`	Generate random salt.
`protected void`	`init()`	Set base values via own getters, which are defined in child classes.
`protected abstract void`	`setupPbe()`	Generate Keys from plain password.

Methods inherited from class org.jastacry.layer.AbstractBasicLayer
rangeCheck, run, setAction, setEndController, setInputStream, setOutputStream, setRealLayerName, toString

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

Methods inherited from interface org.jastacry.layer.Layer
init

- Field Detail
  - BITSPERBYTE
```
protected static final int BITSPERBYTE
```
    How many bits in a byte.
    
    See Also:
    
    Constant Field Values
  - pbeKeySpec
```
protected javax.crypto.spec.PBEKeySpec pbeKeySpec
```
    PBEKeySpec.
  - keyFac
```
protected javax.crypto.SecretKeyFactory keyFac
```
    SecretKeyFactory.
  - pbeKey
```
protected javax.crypto.SecretKey pbeKey
```
    SecretKey.
  - pbeSecretKeySpec
```
protected javax.crypto.spec.SecretKeySpec pbeSecretKeySpec
```
    SecretKeySpec.
  - strAlg
```
protected java.lang.String strAlg
```
    ALG for the data.
  - strKeyAlg
```
protected java.lang.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.
  - currentIvLen
```
protected int currentIvLen
```
    IV length.
  - ivBytes
```
protected byte[] ivBytes
```
    IV bytes.
  - currentSaltLen
```
protected int currentSaltLen
```
    Salt length.
  - salt
```
protected byte[] salt
```
    salt.
- Constructor Detail
  - AbstractCipherLayer
```
public AbstractCipherLayer(java.lang.Class<?> cClass,
                           java.lang.String layerName)
```
    Constructor of abstract class.
    
    Parameters:
    
    cClass - class name of calling class
    
    layerName - name of real layer
- Method Detail
  - getMyAlg
```
protected abstract java.lang.String getMyAlg()
```
    Abstract base method for getting algorithm name back.
    
    Returns:
    
    String
  - getMyKeyAlg
```
protected abstract java.lang.String getMyKeyAlg()
```
    Abstract base method for getting key algorithm name back.
    
    Returns:
    
    String
  - getMySaltLen
```
protected abstract int getMySaltLen()
```
    Abstract base method for getting salt len back.
    
    Returns:
    
    int length
  - getMyIvLen
```
protected abstract int getMyIvLen()
```
    Abstract base method for getting IV length back.
    
    Returns:
    
    int length
  - getMyCount
```
protected abstract int getMyCount()
```
    Abstract base method for getting a counter back.
    
    Returns:
    
    int
  - getMyKeysize
```
protected abstract int getMyKeysize()
```
    Abstract base method for getting key size back.
    
    Returns:
    
    int length
  - getSalt
```
protected final void getSalt()
```
    Generate random salt.
  - getIv
```
protected final void getIv()
```
    store IV bytes.
  - init
```
protected final void init()
```
    Set base values via own getters, which are defined in child classes.
  - setupPbe
```
protected abstract void setupPbe()
                          throws JastacryException
```
    Generate Keys from plain password.
    
    Throws:
    
    JastacryException - on error
  - encStream
```
public final void encStream(java.io.InputStream inputStream,
                            java.io.OutputStream outputStream)
                     throws JastacryException
```
    encode Stream function.
    
    Parameters:
    
    inputStream - incoming data
    
    outputStream - outgoing data
    
    Throws:
    
    JastacryException - thrown on error
  - decStream
```
public final void decStream(java.io.InputStream inputStream,
                            java.io.OutputStream outputStream)
                     throws JastacryException
```
    decode Stream function.
    
    Parameters:
    
    inputStream - incoming data
    
    outputStream - outgoing data
    
    Throws:
    
    JastacryException - thrown on error
  - encodeAndDecode
```
public final void encodeAndDecode(java.io.InputStream inputStream,
                                  java.io.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

Class AbstractCipherLayer

Field Summary

Fields inherited from class org.jastacry.layer.AbstractBasicLayer

Constructor Summary

Method Summary

Methods inherited from class org.jastacry.layer.AbstractBasicLayer

Methods inherited from class java.lang.Object

Methods inherited from interface org.jastacry.layer.Layer

Field Detail

BITSPERBYTE

pbeKeySpec

keyFac

pbeKey

pbeSecretKeySpec

strAlg

strKeyAlg

chPasswd

iterCount

currentKeysize

currentIvLen

ivBytes

currentSaltLen

salt

Constructor Detail

AbstractCipherLayer

Method Detail

getMyAlg

getMyKeyAlg

getMySaltLen

getMyIvLen

getMyCount

getMyKeysize

getSalt

getIv

init

setupPbe

encStream

decStream

encodeAndDecode