com.emc.vipr.transform.encryption

Class EncryptionTransformFactory<T extends EncryptionOutputTransform,U extends EncryptionInputTransform>

java.lang.Object

com.emc.vipr.transform.TransformFactory<T,U>

com.emc.vipr.transform.encryption.EncryptionTransformFactory<T,U>

Type Parameters:

T - the class of EncryptionTransformer that the factory will produce.

All Implemented Interfaces:

java.lang.Comparable<TransformFactory<OutputTransform,InputTransform>>

Direct Known Subclasses:

BasicEncryptionTransformFactory, KeyStoreEncryptionFactory

public abstract class EncryptionTransformFactory<T extends EncryptionOutputTransform,U extends EncryptionInputTransform>
extends TransformFactory<T,U>

Base class for encryption transformation factories.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	encryptionTransform
protected int	keySize
protected java.security.Provider	provider

Constructor Summary

Constructors

Constructor and Description
EncryptionTransformFactory()
EncryptionTransformFactory(java.lang.String encryptionTransform, int keySize, java.security.Provider provider)

Method Summary

Methods

Modifier and Type	Method and Description
protected java.lang.String	getEncryptionAlgorithm()
static int	getMaxKeySize(java.lang.String transform)
java.lang.String	getTransformClass() Gets the high-level class of transform that this factory provides.
abstract java.util.Map<java.lang.String,java.lang.String>	rekey(java.util.Map<java.lang.String,java.lang.String> metadata) "Rekeys" an object.
void	setCryptoProvider(java.security.Provider provider)
void	setEncryptionSettings(java.lang.String transform, int keySize, java.security.Provider provider)

Methods inherited from class com.emc.vipr.transform.TransformFactory

canDecode, compareTo, getInputTransform, getOutputTransform, getOutputTransform, getPriority, setPriority, splitTransformConfig

Methods inherited from class java.lang.Object

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

Field Detail

provider

protected java.security.Provider provider

encryptionTransform

protected java.lang.String encryptionTransform

keySize

protected int keySize

Constructor Detail

EncryptionTransformFactory

public EncryptionTransformFactory()
                           throws java.security.InvalidKeyException,
                                  java.security.NoSuchAlgorithmException,
                                  javax.crypto.NoSuchPaddingException

Throws:

java.security.InvalidKeyException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

EncryptionTransformFactory

public EncryptionTransformFactory(java.lang.String encryptionTransform,
                          int keySize,
                          java.security.Provider provider)
                           throws java.security.InvalidKeyException,
                                  java.security.NoSuchAlgorithmException,
                                  javax.crypto.NoSuchPaddingException

Throws:

java.security.InvalidKeyException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

Method Detail

setEncryptionSettings

public void setEncryptionSettings(java.lang.String transform,
                         int keySize,
                         java.security.Provider provider)
                           throws java.security.InvalidKeyException,
                                  java.security.NoSuchAlgorithmException,
                                  javax.crypto.NoSuchPaddingException

Throws:

java.security.InvalidKeyException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

getMaxKeySize

public static int getMaxKeySize(java.lang.String transform)
                         throws java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchAlgorithmException

rekey

public abstract java.util.Map<java.lang.String,java.lang.String> rekey(java.util.Map<java.lang.String,java.lang.String> metadata)
                                                                throws TransformException,
                                                                       DoesNotNeedRekeyException

"Rekeys" an object. This will locate the

Throws:

TransformException

DoesNotNeedRekeyException - if the object is already up to date with the latest master key and does not need to be rekeyed.

setCryptoProvider

public void setCryptoProvider(java.security.Provider provider)

getTransformClass

public java.lang.String getTransformClass()

Description copied from class: TransformFactory

Gets the high-level class of transform that this factory provides. The transform engine will use this to test whether the registered factory can decode the given object.

Specified by:

getTransformClass in class TransformFactory<T extends EncryptionOutputTransform,U extends EncryptionInputTransform>

Returns:

the transformation class, e.g. "COMP" for compression or "ENC" for encryption.

getEncryptionAlgorithm

protected java.lang.String getEncryptionAlgorithm()