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 java.lang.Object
implements Cryptor

Public methods in this class throw only CryptoExceptions.

Field Summary

protected java.lang.String	cipherAlgorithm
protected java.security.Key	decryptKey The key to be used for decryption.
static java.lang.String	ENCRYPT_PREFIX
protected javax.crypto.Cipher	encryptCipher The Cipher to use for encryption.
static java.lang.String	OLD_ENCRYPT_PREFIX

Constructor Summary

BasicCryptor(java.security.Key encryptKey, java.security.Key decryptKey, java.lang.String algorithm)

Method Summary

byte[]	decrypt(byte[] ciphertext) Decrypt the ciphertext to yield the original cleartext.
java.lang.String	decrypt(java.lang.String ciphertext) Decrypt the ciphertext to yield the original cleartext.
byte[]	encrypt(byte[] cleartext) Encrypt the cleartext in byte array format.
java.lang.String	encrypt(java.lang.String cleartext) Encrypt the cleartext
protected void	initDecryptCipher() Initialize the ciphers used for encryption and decryption.
protected void	initEncryptCipher() Initialize the cipher used for encryption.
java.lang.Object	sealObject(java.lang.Object object)
static java.lang.String	stripEncryptionPrefix(java.lang.String ciphertext)
java.lang.Object	unsealObject(java.lang.Object object)

Methods inherited from class java.lang.Object

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

Field Detail

decryptKey

protected java.security.Key decryptKey

The key to be used for decryption.

encryptCipher

protected javax.crypto.Cipher encryptCipher

The Cipher to use for encryption.

cipherAlgorithm

protected java.lang.String cipherAlgorithm

OLD_ENCRYPT_PREFIX

public static final java.lang.String OLD_ENCRYPT_PREFIX

See Also:

Constant Field Values

ENCRYPT_PREFIX

public static final java.lang.String ENCRYPT_PREFIX

See Also:

Constant Field Values

Constructor Detail

BasicCryptor

public BasicCryptor(java.security.Key encryptKey,
                    java.security.Key decryptKey,
                    java.lang.String algorithm)
             throws CryptoException

Throws:

CryptoException

Method Detail

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

The - decrypted cleartext, in byte form

Throws:

CryptoException

decrypt

public java.lang.String decrypt(java.lang.String ciphertext)
                         throws CryptoException

Description copied from interface: Cryptor

Decrypt the ciphertext to yield the original cleartext.

Specified by:

decrypt in interface Cryptor

Parameters:

ciphertext - The text to be encrypted

Throws:

CryptoException

stripEncryptionPrefix

public static java.lang.String stripEncryptionPrefix(java.lang.String ciphertext)

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 java.lang.Object unsealObject(java.lang.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

The - encrypted ciphertext, in byte form

Throws:

CryptoException

encrypt

public java.lang.String encrypt(java.lang.String cleartext)
                         throws CryptoException

Description copied from interface: Cryptor

Encrypt the cleartext

Specified by:

encrypt in interface Cryptor

Parameters:

cleartext - The text to be encrypted

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 java.lang.Object sealObject(java.lang.Object object)
                            throws CryptoException

Specified by:

sealObject in interface Cryptor

Throws:

CryptoException