de.flexiprovider.core.dsa
Class DSAKeyFactory

java.lang.Object
  |
  +--java.security.KeyFactorySpi
        |
        +--de.flexiprovider.api.keys.KeyFactory
              |
              +--de.flexiprovider.core.dsa.interfaces.DSAKeyFactory
                    |
                    +--de.flexiprovider.core.dsa.DSAKeyFactory

public class DSAKeyFactory

extends DSAKeyFactory

This class is able to transform DSA-keys and DSA-key specs into a form that can be used with the FlexiCoreProvider.

Author:

Thomas Wahrenbruch, Michele Boivin

Field Summary

static java.lang.String	OID The OID of DSA.
static java.lang.String	OID2 An alternative OID of DSA.

Constructor Summary

DSAKeyFactory()

Method Summary

PrivateKey	generatePrivate(KeySpec keySpec) Converts, if possible, a key specification into a DSAPrivKey.
PublicKey	generatePublic(KeySpec keySpec) Converts, if possible, a key specification into a DSAPubKey.
KeySpec	getKeySpec(Key key, java.lang.Class keySpec) Converts a given key into a key specification, if possible.
Key	translateKey(Key key) Translates a key into a form known by the CDC Standard Provider.

Methods inherited from class de.flexiprovider.core.dsa.interfaces.DSAKeyFactory

engineGeneratePrivate, engineGeneratePublic

Methods inherited from class de.flexiprovider.api.keys.KeyFactory

engineGetKeySpec, engineTranslateKey

Methods inherited from class java.lang.Object

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

Field Detail

OID

public static final java.lang.String OID

The OID of DSA.

OID2

public static final java.lang.String OID2

An alternative OID of DSA.

Constructor Detail

DSAKeyFactory

public DSAKeyFactory()

Method Detail

generatePrivate

public PrivateKey generatePrivate(KeySpec keySpec)
                           throws InvalidKeySpecException

Converts, if possible, a key specification into a DSAPrivKey. Currently the following key specifications are supported: DSAPrivateKeySpec, PKCS8EncodedKeySpec.

Overrides:

generatePrivate in class KeyFactory

Parameters:

keySpec - the key specification.

Returns:

the private DSA key.

Throws:

InvalidKeySpecException - if the key specification is not supported.

See Also:

DSAPrivateKey

generatePublic

public PublicKey generatePublic(KeySpec keySpec)
                         throws InvalidKeySpecException

Converts, if possible, a key specification into a DSAPubKey. Currently the following key specifications are supported: DSAPublicKeySpec, X509EncodedKeySpec.

Overrides:

generatePublic in class KeyFactory

Parameters:

keySpec - the key specification.

Returns:

the public DSA key.

Throws:

InvalidKeySpecException - if the KeySpec is not supported.

See Also:

DSAPublicKey

getKeySpec

public KeySpec getKeySpec(Key key,
                          java.lang.Class keySpec)
                   throws InvalidKeySpecException

Converts a given key into a key specification, if possible. Currently the following specifications are supported:

• for DSAPublicKey: X509EncodedKeySpec, DSAPublicKeySpec
• for DSAPrivateKey: PKCS8EncodedKeySpec, DSAPrivateKeySpec.

Overrides:

getKeySpec in class KeyFactory

Parameters:

key - the key

keySpec - the key specification

Returns:

the specification of the DSA key

Throws:

InvalidKeySpecException - if the key type or key specification is not supported.

translateKey

public Key translateKey(Key key)
                 throws InvalidKeyException

Translates a key into a form known by the CDC Standard Provider. Currently the following "source" keys are supported: DSAPrivateKey, DSAPublicKey.

Overrides:

translateKey in class KeyFactory

Parameters:

key - the key

Returns:

a key of a known key-type

Throws:

InvalidKeyException - if the key type is not supported.