This abstract class defines the service-provider interface for KeyPairGenerator. A security provider must implement a concrete subclass of this class for each cryptographic algorithm for which it can generate key pairs. Applications never need to use or subclass this class.

public abstract class KeyPairGeneratorSpi {
// Public Constructors
     public KeyPairGeneratorSpi( );  
// Public Instance Methods
     public abstract KeyPair generateKeyPair( );  
     public void initialize(java.security.spec.AlgorithmParameterSpec params, 
        SecureRandom random) 
        throws InvalidAlgorithmParameterException;  
     public abstract void initialize(int keysize, SecureRandom random);  
}

Subclasses

KeyPairGenerator