public abstract class SecretKeyFactorySpi
extends Object 

Since:

1.4

See Also:

SecretKey, DESKeySpec, DESedeKeySpec

• Constructor Summary

  Constructors

  Constructor and Description
  SecretKeyFactorySpi ()

• Method Summary

  Methods

  Modifier and Type	Method and Description
  protected abstract SecretKey	engineGenerateSecret (KeySpec keySpec) Generates a SecretKey object from the provided key specification (key material).
  protected abstract KeySpec	engineGetKeySpec (SecretKey key, Class keySpec) Returns a specification (key material) of the given key object in the requested format.
  protected abstract SecretKey	engineTranslateKey (SecretKey key) Translates a key object, whose provider may be unknown or potentially untrusted, into a corresponding key object of this secret-key factory.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • SecretKeyFactorySpi

    public SecretKeyFactorySpi()

• Method Detail

  • engineGenerateSecret

    protected abstract SecretKey engineGenerateSecret(KeySpec keySpec)
     throws InvalidKeySpecException 

    Generates a SecretKey object from the provided key specification (key material).

    Parameters:

    keySpec - the specification (key material) of the secret key

    Returns:

    the secret key

    Throws:

    InvalidKeySpecException - if the given key specification is inappropriate for this secret-key factory to produce a secret key.

  • engineGetKeySpec

    protected abstract KeySpec engineGetKeySpec(SecretKey key,
     Class keySpec)
     throws InvalidKeySpecException 

    Returns a specification (key material) of the given key object in the requested format.

    Parameters:

    key - the key

    keySpec - the requested format in which the key material shall be returned

    Returns:

    the underlying key specification (key material) in the requested format

    Throws:

    InvalidKeySpecException - if the requested key specification is inappropriate for the given key (e.g., the algorithms associated with key and keySpec do not match, or key references a key on a cryptographic hardware device whereas keySpec is the specification of a software-based key), or the given key cannot be dealt with (e.g., the given key has an algorithm or format not supported by this secret-key factory).

  • engineTranslateKey

    protected abstract SecretKey engineTranslateKey(SecretKey key)
     throws InvalidKeyException 

    Translates a key object, whose provider may be unknown or potentially untrusted, into a corresponding key object of this secret-key factory.

    Parameters:

    key - the key whose provider is unknown or untrusted

    Returns:

    the translated key

    Throws:

    InvalidKeyException - if the given key cannot be processed by this secret-key factory.