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**vngx-jsch** (beta) is an updated version of the popular JSch SSH library
written in pure Java. It has been updated to Java 6 with all the latest
language features and improved code clarity.
/*
* Copyright (c) 2010-2011 Michael Laudati, N1 Concepts LLC.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL N1
* CONCEPTS, INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.vngx.jsch.algorithm;
/**
* Interface for defining a key-pair generator using the Digital Signature
* Standard (DSS).
*
*
*
* @author Michael Laudati
*/
public interface KeyPairGenDSA extends Algorithm {
/**
* Initializes the key-pair generator and creates the public and private
* keys along with the parameters p, q and g used to generate the keys.
*
* @param keySize to generate keys
* @throws Exception if any errors occur
*/
void init(int keySize) throws Exception;
/**
* Returns the generated private key.
*
* @return private key
*/
byte[] getX();
/**
* Returns the generated public key.
*
* @return public key
*/
byte[] getY();
/**
* Returns the prime modulus 'p' used to generate keys.
*
* @return prime module 'p'
*/
byte[] getP();
/**
* Returns the prime number 'q' used to generate keys.
*
* @return prime number 'q'
*/
byte[] getQ();
/**
* Returns the number whose multiplicative order modulo p is q used for
* generating keys.
*
* @return g value
*/
byte[] getG();
}