This interface defines algorithm-specific KeyPairGenerator initialization methods for DSA keys. To generate a pair of DSA keys, use the static getInstance( ) factory method of java.security.KeyPairGenerator and specify "DSA" as the desired algorithm name. If you wish to perform DSA-specific initialization, cast the returned KeyPairGenerator to a DSAKeyPairGenerator and call one of the initialize( ) methods defined by this interface. Finally, generate the keys by calling generateKeyPair( ) on the KeyPairGenerator.

public interface DSAKeyPairGenerator {
// Public Instance Methods
     void initialize(DSAParams params, java.security.SecureRandom random) 
        throws java.security.InvalidParameterException;  
     void initialize(int modlen, boolean genParams, 
        java.security.SecureRandom random) 
        throws java.security.InvalidParameterException;  
}