Package org.mycore.crypt

Class MCRAESCipher

java.lang.Object

org.mycore.crypt.MCRCipher

org.mycore.crypt.MCRAESCipher

public class MCRAESCipher
extends MCRCipher

Field Summary

Fields inherited from class org.mycore.crypt.MCRCipher

cipherID

Constructor Summary

Constructors

Constructor	Description
MCRAESCipher()

Method Summary

Modifier and Type	Method	Description
protected byte[]	decryptImpl(byte[] bytes)
protected String	decryptImpl(String text)
protected byte[]	encryptImpl(byte[] bytes)
protected String	encryptImpl(String text)
void	generateKeyFile()	If no keyfile exsits, generate the secret key an write it to the keyfile.
void	init(String id)	Initialize the chipher by reading the key from file.
boolean	isInitialized()	Return whether cipher has been initialized.
void	overwriteKeyFile()	Generate the secret key an write it to the keyfile.
void	reset()	Revert init process.
void	setKeyFile(String path)

Methods inherited from class org.mycore.crypt.MCRCipher

decrypt, decrypt, encrypt, encrypt, getAclEnabled, setAclEnabled

Methods inherited from class java.lang.Object

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

Constructor Details

MCRAESCipher

public MCRAESCipher()

Method Details

setKeyFile

public void setKeyFile(String path)

init

public void init(String id)
          throws MCRCryptKeyFileNotFoundException,
InvalidKeyException

Description copied from class: MCRCipher

Initialize the chipher by reading the key from file. If the cipher can't initialized an exception will thrown. Common issue is an missing key. In this case the methods throws a MCRCryptKeyFileNotFoundException. Needs the id of cipher as parameter, because the id can't be set during instanciating by getSingleInstanceOf.

Specified by:

init in class MCRCipher

Parameters:

id - ID of cipher as configured

Throws:

MCRCryptKeyFileNotFoundException

InvalidKeyException

isInitialized

public boolean isInitialized()

Description copied from class: MCRCipher

Return whether cipher has been initialized.

Specified by:

isInitialized in class MCRCipher

reset

public void reset()

Description copied from class: MCRCipher

Revert init process.

Specified by:

reset in class MCRCipher

generateKeyFile

public void generateKeyFile()
                     throws FileAlreadyExistsException

Description copied from class: MCRCipher

If no keyfile exsits, generate the secret key an write it to the keyfile.

Specified by:

generateKeyFile in class MCRCipher

Throws:

FileAlreadyExistsException

overwriteKeyFile

public void overwriteKeyFile()

Description copied from class: MCRCipher

Generate the secret key an write it to the keyfile. Overwrites exsisting keyfile.

Specified by:

overwriteKeyFile in class MCRCipher

encryptImpl

protected String encryptImpl(String text)
                      throws MCRCryptCipherConfigurationException

Specified by:

encryptImpl in class MCRCipher

Throws:

MCRCryptCipherConfigurationException

decryptImpl

protected String decryptImpl(String text)
                      throws MCRCryptCipherConfigurationException

Specified by:

decryptImpl in class MCRCipher

Throws:

MCRCryptCipherConfigurationException

encryptImpl

protected byte[] encryptImpl(byte[] bytes)
                      throws MCRCryptCipherConfigurationException

Specified by:

encryptImpl in class MCRCipher

Throws:

MCRCryptCipherConfigurationException

decryptImpl

protected byte[] decryptImpl(byte[] bytes)
                      throws MCRCryptCipherConfigurationException

Specified by:

decryptImpl in class MCRCipher

Throws:

MCRCryptCipherConfigurationException