Package java.security

Class KeyFactorySpi

java.lang.Object

java.security.KeyFactorySpi

Direct Known Subclasses:

BaseKeyFactorySpi, DSAKeyFactoryImpl, KeyFactory, OpenSSLDSAKeyFactory, OpenSSLECKeyFactory, OpenSSLRSAKeyFactory

public abstract class KeyFactorySpi
extends Object

KeyFactorySpi is the Service Provider Interface (SPI) definition for KeyFactory.

See Also:

KeyFactory

Constructor Summary

Constructors

Constructor	Description
KeyFactorySpi()

Method Summary

Modifier and Type	Method	Description
protected abstract PrivateKey	engineGeneratePrivate(KeySpec keySpec)	Generates a instance of PrivateKey from the given key specification.
protected abstract PublicKey	engineGeneratePublic(KeySpec keySpec)	Generates a instance of PublicKey from the given key specification.
protected abstract <T extends KeySpec> T	engineGetKeySpec(Key key, Class<T> keySpec)	Returns the key specification for the specified key.
protected abstract Key	engineTranslateKey(Key key)	Translates the given key into a key from this key factory.

Methods inherited from class java.lang.Object

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

Constructor Details

KeyFactorySpi

public KeyFactorySpi()

Method Details

engineGeneratePublic

protected abstract PublicKey engineGeneratePublic(KeySpec keySpec)
                                           throws InvalidKeySpecException

Generates a instance of PublicKey from the given key specification.

Parameters:

keySpec - the specification of the public key.

Returns:

the public key.

Throws:

InvalidKeySpecException - if the specified keySpec is invalid.

engineGeneratePrivate

protected abstract PrivateKey engineGeneratePrivate(KeySpec keySpec)
                                             throws InvalidKeySpecException

Generates a instance of PrivateKey from the given key specification.

Parameters:

keySpec - the specification of the private key.

Returns:

the private key.

Throws:

InvalidKeySpecException - if the specified keySpec is invalid.

engineGetKeySpec

protected abstract <T extends KeySpec> T engineGetKeySpec(Key key,
Class<T> keySpec)
                                                   throws InvalidKeySpecException

Returns the key specification for the specified key.

Parameters:

key - the key from which the specification is requested.

keySpec - the type of the requested KeySpec.

Returns:

the key specification for the specified key.

Throws:

InvalidKeySpecException - if the key can not be processed, or the requested requested KeySpec is inappropriate for the given key.

engineTranslateKey

protected abstract Key engineTranslateKey(Key key)
                                   throws InvalidKeyException

Translates the given key into a key from this key factory.

Parameters:

key - the key to translate.

Returns:

the translated key.

Throws:

InvalidKeyException - if the specified key can not be translated by this key factory.