org.bouncycastle.bcpg.DSAPublicBCPGKey.java Source code

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Here is the source code for org.bouncycastle.bcpg.DSAPublicBCPGKey.java

Source

package org.bouncycastle.bcpg;

import java.io.*;
import java.math.BigInteger;

/**
 * base class for a DSA Public Key.
 */
public class DSAPublicBCPGKey extends BCPGObject implements BCPGKey {
    MPInteger p;
    MPInteger q;
    MPInteger g;
    MPInteger y;

    /**
     * @param in the stream to read the packet from.
     */
    public DSAPublicBCPGKey(BCPGInputStream in) throws IOException {
        this.p = new MPInteger(in);
        this.q = new MPInteger(in);
        this.g = new MPInteger(in);
        this.y = new MPInteger(in);
    }

    public DSAPublicBCPGKey(BigInteger p, BigInteger q, BigInteger g, BigInteger y) {
        this.p = new MPInteger(p);
        this.q = new MPInteger(q);
        this.g = new MPInteger(g);
        this.y = new MPInteger(y);
    }

    /**
     *  return "PGP"
     * 
     * @see org.bouncycastle.bcpg.BCPGKey#getFormat()
     */
    public String getFormat() {
        return "PGP";
    }

    /**
     * return the standard PGP encoding of the key.
     * 
     * @see org.bouncycastle.bcpg.BCPGKey#getEncoded()
     */
    public byte[] getEncoded() {
        try {
            return super.getEncoded();
        } catch (IOException e) {
            return null;
        }
    }

    public void encode(BCPGOutputStream out) throws IOException {
        out.writeObject(p);
        out.writeObject(q);
        out.writeObject(g);
        out.writeObject(y);
    }

    /**
     * @return g
     */
    public BigInteger getG() {
        return g.getValue();
    }

    /**
     * @return p
     */
    public BigInteger getP() {
        return p.getValue();
    }

    /**
     * @return q
     */
    public BigInteger getQ() {
        return q.getValue();
    }

    /**
     * @return g
     */
    public BigInteger getY() {
        return y.getValue();
    }

}