/*
 * This class is part of the white paper entitled
 * "Digital Signatures for PDF documents"
 * written by Bruno Lowagie
 * 
 * For more info, go to: http://itextpdf.com/learn
 */
package signatures.chapter3;

import java.io.FileInputStream;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.Security;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import java.util.Properties;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

import com.itextpdf.text.pdf.security.CertificateUtil;

public class C3_08_GetTsaUrl {
	public static void main(String[] args) throws IOException, GeneralSecurityException {
		Properties properties = new Properties();
		properties.load(new FileInputStream("c:/home/blowagie/key.properties"));
    	String path = properties.getProperty("PRIVATE");
        char[] pass = properties.getProperty("PASSWORD").toCharArray();
        
		BouncyCastleProvider provider = new BouncyCastleProvider();
		Security.addProvider(provider);
        KeyStore ks = KeyStore.getInstance("pkcs12", provider.getName());
		ks.load(new FileInputStream(path), pass);
        String alias = (String)ks.aliases().nextElement();
        Certificate[] chain = ks.getCertificateChain(alias);	    
        for (int i = 0; i < chain.length; i++) {
        	X509Certificate cert = (X509Certificate)chain[i];
        	System.out.println(String.format("[%s] %s", i, cert.getSubjectDN()));
			System.out.println(CertificateUtil.getTSAURL(cert));
        }
	}
}