org.bouncycastle.openpgp.examples.PubringDump Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcpg-jdk15on Show documentation

The Bouncy Castle Java API for handling the OpenPGP protocol. This jar contains the OpenPGP API for JDK 1.5 to JDK 1.7. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

There is a newer version: 1.70

Show newest version

package org.bouncycastle.openpgp.examples;

import java.io.*;

import java.security.Security;
import java.util.Iterator;

import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
import org.bouncycastle.jce.provider.BouncyCastleProvider;

import org.bouncycastle.openpgp.PGPPublicKey;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
import org.bouncycastle.openpgp.PGPUtil;

import org.bouncycastle.util.encoders.Hex;

/**
 * Basic class which just lists the contents of the public key file passed
 * as an argument. If the file contains more than one "key ring" they are
 * listed in the order found.
 */
public class PubringDump 
{
    public static String getAlgorithm(
        int    algId)
    {
        switch (algId)
        {
        case PublicKeyAlgorithmTags.RSA_GENERAL:
            return "RSA_GENERAL";
        case PublicKeyAlgorithmTags.RSA_ENCRYPT:
            return "RSA_ENCRYPT";
        case PublicKeyAlgorithmTags.RSA_SIGN:
            return "RSA_SIGN";
        case PublicKeyAlgorithmTags.ELGAMAL_ENCRYPT:
            return "ELGAMAL_ENCRYPT";
        case PublicKeyAlgorithmTags.DSA:
            return "DSA";
        case PublicKeyAlgorithmTags.EC:
            return "EC";
        case PublicKeyAlgorithmTags.ECDSA:
            return "ECDSA";
        case PublicKeyAlgorithmTags.ELGAMAL_GENERAL:
            return "ELGAMAL_GENERAL";
        case PublicKeyAlgorithmTags.DIFFIE_HELLMAN:
            return "DIFFIE_HELLMAN";
        }

        return "unknown";
    }

    public static void main(String[] args)
        throws Exception
    {
        Security.addProvider(new BouncyCastleProvider());
        
        PGPUtil.setDefaultProvider("BC");

        //
        // Read the public key rings
        //
        PGPPublicKeyRingCollection    pubRings = new PGPPublicKeyRingCollection(
            PGPUtil.getDecoderStream(new FileInputStream(args[0])));

        Iterator    rIt = pubRings.getKeyRings();
            
        while (rIt.hasNext())
        {
            PGPPublicKeyRing    pgpPub = (PGPPublicKeyRing)rIt.next();

            try
            {
                pgpPub.getPublicKey();
            }
            catch (Exception e)
            {
                e.printStackTrace();
                continue;
            }

            Iterator    it = pgpPub.getPublicKeys();
            boolean     first = true;
            while (it.hasNext())
            {
                PGPPublicKey    pgpKey = (PGPPublicKey)it.next();

                if (first)
                {
                    System.out.println("Key ID: " + Long.toHexString(pgpKey.getKeyID()));
                    first = false;
                }
                else
                {
                    System.out.println("Key ID: " + Long.toHexString(pgpKey.getKeyID()) + " (subkey)");
                }
                System.out.println("            Algorithm: " + getAlgorithm(pgpKey.getAlgorithm()));
                System.out.println("            Fingerprint: " + new String(Hex.encode(pgpKey.getFingerprint())));
            }
        }
    }
}