ec.rubrica.pdf.Sign.java Source code

Introduction

Here is the source code for ec.rubrica.pdf.Sign.java

Source

/*
 * Copyright (c) 2009-2013 Rubrica.ec
 * 
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 */

package ec.rubrica.pdf;

import java.io.ByteArrayOutputStream;
import java.security.AccessController;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PrivilegedAction;
import java.security.Security;
import java.security.cert.Certificate;
import java.util.List;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

import com.itextpdf.text.Document;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;

import ec.rubrica.keystore.Alias;
import ec.rubrica.keystore.KeyStoreProvider;
import ec.rubrica.keystore.KeyStoreUtilities;
import ec.rubrica.keystore.WindowsKeyStoreProvider;
import ec.rubrica.pdf.tsa.TSAClientBancoCentral;

/**
 * Ejemplo de firma PDF.
 * 
 * @author Ricardo Arguello <ricardo@rubrica.ec>
 */
public class Sign {

    public static void main(String[] args) throws Exception {
        AccessController.doPrivileged(new PrivilegedAction<Void>() {
            public Void run() {
                Security.addProvider(new BouncyCastleProvider());
                return null;
            }
        });

        // Create a PDF:
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        Document document = new Document();
        PdfWriter.getInstance(document, baos);
        document.open();
        document.add(new Paragraph("Hello World!"));
        document.close();
        byte[] pdf = baos.toByteArray();

        // Sign it!
        KeyStoreProvider keyStoreProvider = new WindowsKeyStoreProvider();
        KeyStore keyStore = keyStoreProvider.getKeystore();
        List<Alias> signingAliases = KeyStoreUtilities.getSigningAliases(keyStore);

        int i = 1;

        for (Alias alias : signingAliases) {
            System.out.println("alias=" + alias);
            System.out.println("------------------------------------------------------");

            PrivateKey pk = (PrivateKey) keyStore.getKey(alias.getAlias(), null);
            Certificate[] chain = keyStore.getCertificateChain(alias.getAlias());
            System.out.println("chain.length=" + chain.length);
            byte[] signedPdf = FirmaPDF.firmar(pdf, pk, chain, new TSAClientBancoCentral(null));

            // Verificar
            FirmaPDF.verificar(signedPdf);
        }
    }
}