test.unit.be.e_contract.mycarenet.etee.SealTest.java Source code

Introduction

Here is the source code for test.unit.be.e_contract.mycarenet.etee.SealTest.java

Source

/*
 * Java MyCareNet Project.
 * Copyright (C) 2013 e-Contract.be BVBA.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version
 * 3.0 as published by the Free Software Foundation.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, see 
 * http://www.gnu.org/licenses/.
 */

package test.unit.be.e_contract.mycarenet.etee;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.security.Security;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Collection;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.cms.CMSEnvelopedDataParser;
import org.bouncycastle.cms.CMSSignedData;
import org.bouncycastle.cms.CMSTypedData;
import org.bouncycastle.cms.KeyTransRecipientInformation;
import org.bouncycastle.cms.RecipientInformation;
import org.bouncycastle.cms.RecipientInformationStore;
import org.bouncycastle.cms.SignerId;
import org.bouncycastle.cms.SignerInformation;
import org.bouncycastle.cms.SignerInformationStore;
import org.bouncycastle.cms.SignerInformationVerifier;
import org.bouncycastle.cms.jcajce.JcaSimpleSignerInfoVerifierBuilder;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.util.Store;
import org.junit.Test;

public class SealTest {

    private static final Log LOG = LogFactory.getLog(SealTest.class);

    @Test
    public void testSeal() throws Exception {
        InputStream sealInputStream = SealTest.class.getResourceAsStream("/seal-fcorneli.der");
        assertNotNull(sealInputStream);

        // check outer signature

        CMSSignedData cmsSignedData = new CMSSignedData(sealInputStream);
        SignerInformationStore signers = cmsSignedData.getSignerInfos();
        SignerInformation signer = (SignerInformation) signers.getSigners().iterator().next();
        SignerId signerId = signer.getSID();

        Store certificateStore = cmsSignedData.getCertificates();
        @SuppressWarnings("unchecked")
        Collection<X509CertificateHolder> certificateCollection = certificateStore.getMatches(signerId);
        X509CertificateHolder certificateHolder = certificateCollection.iterator().next();
        CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
        X509Certificate certificate = (X509Certificate) certificateFactory
                .generateCertificate(new ByteArrayInputStream(certificateHolder.getEncoded()));

        Security.addProvider(new BouncyCastleProvider());
        SignerInformationVerifier signerInformationVerifier = new JcaSimpleSignerInfoVerifierBuilder()
                .build(certificate);
        boolean signatureResult = signer.verify(signerInformationVerifier);
        assertTrue(signatureResult);

        LOG.debug("signer certificate: " + certificate);

        CMSTypedData signedContent = cmsSignedData.getSignedContent();
        byte[] data = (byte[]) signedContent.getContent();

        // decrypt content

        CMSEnvelopedDataParser cmsEnvelopedDataParser = new CMSEnvelopedDataParser(data);
        LOG.debug("content encryption algo: "
                + cmsEnvelopedDataParser.getContentEncryptionAlgorithm().getAlgorithm().getId());

        RecipientInformationStore recipientInformationStore = cmsEnvelopedDataParser.getRecipientInfos();
        @SuppressWarnings("unchecked")
        Collection<RecipientInformation> recipients = recipientInformationStore.getRecipients();
        RecipientInformation recipientInformation = recipients.iterator().next();
        LOG.debug("recipient info type: " + recipientInformation.getClass().getName());
        KeyTransRecipientInformation keyTransRecipientInformation = (KeyTransRecipientInformation) recipientInformation;

    }
}