org.bouncycastle.bcpg.RSAPublicBCPGKey.java Source code

Introduction

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

Source

package org.bouncycastle.bcpg;

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

/**
 * base class for an RSA Public Key.
 */
public class RSAPublicBCPGKey extends BCPGObject implements BCPGKey {
    MPInteger n;
    MPInteger e;

    /**
     * Construct an RSA public key from the passed in stream.
     * 
     * @param in
     * @throws IOException
     */
    public RSAPublicBCPGKey(BCPGInputStream in) throws IOException {
        this.n = new MPInteger(in);
        this.e = new MPInteger(in);
    }

    /**
     * 
     * @param n the modulus
     * @param e the public exponent
     */
    public RSAPublicBCPGKey(BigInteger n, BigInteger e) {
        this.n = new MPInteger(n);
        this.e = new MPInteger(e);
    }

    public BigInteger getPublicExponent() {
        return e.getValue();
    }

    public BigInteger getModulus() {
        return n.getValue();
    }

    /**
     *  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(n);
        out.writeObject(e);
    }
}