/* DHPrivateKeySpec.java -- Wrapper for Diffie-Hellman private keys.
   Copyright (C) 2004  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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any later version.

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WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
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package javax.crypto.spec;

import java.math.BigInteger;
import java.security.spec.KeySpec;

/**
 * A wrapper for Diffie-Hellman private key data.
 *
 * @author Casey Marshall (csm@gnu.org)
 * @since 1.4
 * @see DHPublicKeySpec
 */
public class DHPrivateKeySpec implements KeySpec
{

  // Variables.
  // ------------------------------------------------------------------------

  /** The base generator. */
  private BigInteger g;

  /** The prime modulus. */
  private BigInteger p;

  /** The private exponent. */
  private BigInteger x;

  // Constructors.
  // ------------------------------------------------------------------------

  /**
   * Create a new Diffie-Hellman private key spec.
   *
   * @param x The private exponent.
   * @param p The prime modulus.
   * @param g The base generator.
   */
  public DHPrivateKeySpec(BigInteger x, BigInteger p, BigInteger g)
  {
    this.x = x;
    this.p = p;
    this.g = g;
  }

  // Instance methods.
  // ------------------------------------------------------------------------

  /**
   * Get the base generator.
   *
   * @return The base generator.
   */
  public BigInteger getG()
  {
    return g;
  }

  /**
   * Get the prime modulus.
   *
   * @return The prime modulus.
   */
  public BigInteger getP()
  {
    return p;
  }

  /**
   * Get the private exponent.
   *
   * @return The private exponent.
   */
  public BigInteger getX()
  {
    return x;
  }
}