javax.crypto
public abstract class SecretKeyFactorySpi extends Object
Providers wishing to implement a secret key factory must
subclass this and provide an appropriate implementation for all the
abstract methods below, and provide an appropriate entry in the
master {@link java.security.Provider} class (the service name for
secret key factories is "SecretKeyFactory").
Since: 1.4
See Also: SecretKeyFactory
| Constructor Summary | |
|---|---|
| SecretKeyFactorySpi()
Create a new secret key factory SPI. | |
| Method Summary | |
|---|---|
| protected abstract SecretKey | engineGenerateSecret(KeySpec keySpec)
Translate a {@link java.security.KeySpec} into a {@link SecretKey}.
|
| protected abstract KeySpec | engineGetKeySpec(SecretKey key, Class keySpec)
Translate a {@link SecretKey} into a {@link java.security.KeySpec}.
|
| protected abstract SecretKey | engineTranslateKey(SecretKey key)
Translate a secret key into a different representation.
|
Parameters: keySpec The key specification.
Returns: The secret key.
Throws: java.security.spec.InvalidKeySpecException If the key specification cannot be translated into a secret key.
Parameters: key The secret key. keySpec The desired key specification class.
Returns: The key specification.
Throws: java.security.spec.InvalidKeySpecException If the secret key cannot be translated into the desired key specification.
Parameters: key The secret key to translate.
Returns: The translated key.
Throws: java.security.InvalidKeyException If the specified secret key cannot be translated.