Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.FileInputStream;
import java.security.Key;
import java.security.KeyPair;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.cert.Certificate;

public class Main {
    public static void main(String[] argv) throws Exception {
        FileInputStream is = new FileInputStream("your.keystore");

        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
        keystore.load(is, "my-keystore-password".toCharArray());

        String alias = "myalias";

        Key key = keystore.getKey(alias, "password".toCharArray());
        if (key instanceof PrivateKey) {
            // Get certificate of public key
            Certificate cert = keystore.getCertificate(alias);

            // Get public key
            PublicKey publicKey = cert.getPublicKey();

            // Return a key pair
            new KeyPair(publicKey, (PrivateKey) key);
        }
    }
}