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Class au.net.aba.crypto.provider.RC4KeyFactory

java.lang.Object
   |
   +----javax.crypto.SecretKeyFactorySpi
           |
           +----au.net.aba.crypto.provider.RC4KeyFactory

public class RC4KeyFactory
extends SecretKeyFactorySpi
This class is used to convert RC4 keys into a format usable by the ABA provider. The supported KeySpec classes are RC4KeySpec and SecretKeySpec. In the case of the SecretKeySpec the key data must not be encoded. The supported Key class is RC4Key.

This class should not be instantiated directly, instead use the java.security.KeyFactory interface.

See Also:
KeyFactory

Variable Index

 o ident

Constructor Index

 o RC4KeyFactory()

Method Index

 o engineGenerateSecret(KeySpec)
Generates a RC4 SecretKey object from the provided key specification (key material).
 o engineGetKeySpec(SecretKey, Class)
Returns a specification (key material) of the given key object in the requested format.
 o engineTranslateKey(SecretKey)
Translates a RC4 key object, whose provider may be unknown or potentially untrusted, into a corresponding key object of this key factory.

Variables

 o ident
 public static final String ident

Constructors

 o RC4KeyFactory
 public RC4KeyFactory()

Methods

 o engineGenerateSecret
 protected SecretKey engineGenerateSecret(KeySpec keySpec) throws InvalidKeySpecException
Generates a RC4 SecretKey object from the provided key specification (key material). This class supports the RC4KeySpec and SecretKeySpec KeySpec classes.

Returns:
s The secret key.
Throws: InvalidKeySpecException
The provided KeySpec was not a RC4KeySpec or SecretKeySpec KeySpec instance.
Overrides:
engineGenerateSecret in class SecretKeyFactorySpi
 o engineGetKeySpec
 protected KeySpec engineGetKeySpec(SecretKey key,
                                    Class keySpec) throws InvalidKeySpecException
Returns a specification (key material) of the given key object in the requested format.

Can convert from an ABA RC4Key into a SecretKeySpec or RC4KeySpec class.

Parameters:
key - the key
keySpec - the requested format in which the key material shall be returned
Returns:
s the underlying key specification (key material) in the requested format
Throws: InvalidKeySpecException
if the requested key specification is inappropriate for the given key, or the given key cannot be dealt with (e.g., the given key has an unrecognised format).
Overrides:
engineGetKeySpec in class SecretKeyFactorySpi
 o engineTranslateKey
 protected SecretKey engineTranslateKey(SecretKey key) throws InvalidKeyException
Translates a RC4 key object, whose provider may be unknown or potentially untrusted, into a corresponding key object of this key factory.

Parameters:
key - - the key whose provider is unknown or untrusted
Returns:
s the translated key
Throws: InvalidKeyException
if the given key cannot be processed by this key factory.
Overrides:
engineTranslateKey in class SecretKeyFactorySpi

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