org.teiid.core.crypto

Class BasicCryptor

java.lang.Object

org.teiid.core.crypto.BasicCryptor

All Implemented Interfaces:

Cryptor

Direct Known Subclasses:

SymmetricCryptor

public class BasicCryptor
extends Object
implements Cryptor

Public methods in this class throw only CryptoExceptions.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	cipherAlgorithm
protected Key	decryptKey The key to be used for decryption.
static String	ENCRYPT_PREFIX
protected Cipher	encryptCipher The Cipher to use for encryption.
static String	OLD_ENCRYPT_PREFIX

Constructor Summary

Constructors

Constructor and Description
BasicCryptor(Key encryptKey, Key decryptKey, String algorithm, IvParameterSpec iv)

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] ciphertext) Decrypt the ciphertext to yield the original cleartext.
byte[]	encrypt(byte[] cleartext) Encrypt the cleartext in byte array format.
byte[]	encrypt(byte[] buffer, int offset, int length)
protected void	initDecryptCipher() Initialize the ciphers used for encryption and decryption.
protected void	initEncryptCipher() Initialize the cipher used for encryption.
Object	sealObject(Object object)
void	setClassLoader(ClassLoader classLoader)
void	setUseSealedObject(boolean useSealedObject)
Object	unsealObject(Object object)

Methods inherited from class java.lang.Object

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

Field Detail

decryptKey

protected Key decryptKey

The key to be used for decryption.

encryptCipher

protected Cipher encryptCipher

The Cipher to use for encryption.

cipherAlgorithm

protected String cipherAlgorithm

OLD_ENCRYPT_PREFIX

public static final String OLD_ENCRYPT_PREFIX

See Also:

Constant Field Values

ENCRYPT_PREFIX

public static final String ENCRYPT_PREFIX

See Also:

Constant Field Values

Constructor Detail

BasicCryptor

public BasicCryptor(Key encryptKey,
                    Key decryptKey,
                    String algorithm,
                    IvParameterSpec iv)
             throws CryptoException

Throws:

CryptoException

Method Detail

setUseSealedObject

public void setUseSealedObject(boolean useSealedObject)

setClassLoader

public void setClassLoader(ClassLoader classLoader)

decrypt

public byte[] decrypt(byte[] ciphertext)
               throws CryptoException

Decrypt the ciphertext to yield the original cleartext.

Specified by:

decrypt in interface Cryptor

Parameters:

ciphertext - The text to be encrypted, in byte form

Returns:

The decrypted cleartext, in byte form

Throws:

CryptoException

initDecryptCipher

protected void initDecryptCipher()
                          throws CryptoException

Initialize the ciphers used for encryption and decryption. The ciphers define the algorithms to be used. They are initialized with the appropriate key to be used in the encryption or decryption operation.

Throws:

CryptoException

unsealObject

public Object unsealObject(Object object)
                    throws CryptoException

Specified by:

unsealObject in interface Cryptor

Throws:

CryptoException

encrypt

public byte[] encrypt(byte[] cleartext)
               throws CryptoException

Encrypt the cleartext in byte array format.

Specified by:

encrypt in interface Cryptor

Parameters:

cleartext - The text to be encrypted, in byte form

Returns:

The encrypted ciphertext, in byte form

Throws:

CryptoException

encrypt

public byte[] encrypt(byte[] buffer,
                      int offset,
                      int length)
               throws CryptoException

Throws:

CryptoException

initEncryptCipher

protected void initEncryptCipher()
                          throws CryptoException

Initialize the cipher used for encryption. The cipher defines the algorithm to be used. It is initialized with the appropriate key to be used in the encryption operation.

Throws:

CryptoException

sealObject

public Object sealObject(Object object)
                  throws CryptoException

Specified by:

sealObject in interface Cryptor

Throws:

CryptoException