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pgpainless/src/test/java/de/vanitasvitae/crypto/pgpainless/EncryptDecryptTest.java

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/*
* Copyright 2018 Paul Schaub.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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package de.vanitasvitae.crypto.pgpainless;
import static junit.framework.TestCase.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
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import java.nio.charset.Charset;
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import java.security.InvalidAlgorithmParameterException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
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import java.util.Arrays;
import java.util.Collections;
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import java.util.logging.Level;
import java.util.logging.Logger;
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import de.vanitasvitae.crypto.pgpainless.algorithm.PublicKeyAlgorithm;
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import de.vanitasvitae.crypto.pgpainless.decryption_verification.DecryptionStream;
import de.vanitasvitae.crypto.pgpainless.decryption_verification.PainlessResult;
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import de.vanitasvitae.crypto.pgpainless.key.SecretKeyRingProtector;
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import de.vanitasvitae.crypto.pgpainless.key.UnprotectedKeysProtector;
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import de.vanitasvitae.crypto.pgpainless.key.generation.type.length.RsaLength;
import de.vanitasvitae.crypto.pgpainless.util.BCUtil;
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import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.util.io.Streams;
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import org.junit.Ignore;
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import org.junit.Test;
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public class EncryptDecryptTest extends AbstractPGPainlessTest {
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private static final Logger LOGGER = Logger.getLogger(EncryptDecryptTest.class.getName());
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private static final Charset UTF8 = Charset.forName("UTF-8");
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private static final String testMessage = "Ah, Juliet, if the measure of thy joy\n" +
"Be heaped like mine, and that thy skill be more\n" +
"To blazon it, then sweeten with thy breath\n" +
"This neighbor air, and let rich musics tongue\n" +
"Unfold the imagined happiness that both\n" +
"Receive in either by this dear encounter.";
public EncryptDecryptTest() {
LOGGER.log(Level.INFO, "Plain Length: " + testMessage.getBytes(UTF8).length);
}
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@Test
public void freshKeysRsaToRsaTest()
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throws PGPException, NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException,
IOException {
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PGPSecretKeyRing sender = PGPainless.generateKeyRing().simpleRsaKeyRing("romeo@montague.lit", RsaLength._4096);
PGPSecretKeyRing recipient = PGPainless.generateKeyRing().simpleRsaKeyRing("juliet@capulet.lit", RsaLength._4096);
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encryptDecryptForSecretKeyRings(sender, recipient);
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}
@Test
public void freshKeysEcToEcTest() throws IOException, PGPException, NoSuchAlgorithmException, NoSuchProviderException,
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InvalidAlgorithmParameterException {
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PGPSecretKeyRing sender = PGPainless.generateKeyRing().simpleEcKeyRing("romeo@montague.lit");
PGPSecretKeyRing recipient = PGPainless.generateKeyRing().simpleEcKeyRing("juliet@capulet.lit");
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encryptDecryptForSecretKeyRings(sender, recipient);
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}
@Test
public void freshKeysEcToRsaTest()
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throws PGPException, NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException,
IOException {
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PGPSecretKeyRing sender = PGPainless.generateKeyRing().simpleEcKeyRing("romeo@montague.lit");
PGPSecretKeyRing recipient = PGPainless.generateKeyRing().simpleRsaKeyRing("juliet@capulet.lit", RsaLength._4096);
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encryptDecryptForSecretKeyRings(sender, recipient);
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}
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@Test
public void freshKeysRsaToEcTest()
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throws PGPException, NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException,
IOException {
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PGPSecretKeyRing sender = PGPainless.generateKeyRing().simpleRsaKeyRing("romeo@montague.lit", RsaLength._4096);
PGPSecretKeyRing recipient = PGPainless.generateKeyRing().simpleEcKeyRing("juliet@capulet.lit");
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encryptDecryptForSecretKeyRings(sender, recipient);
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}
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@Ignore
private void encryptDecryptForSecretKeyRings(PGPSecretKeyRing sender, PGPSecretKeyRing recipient)
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throws PGPException,
IOException {
PGPPublicKeyRing recipientPub = BCUtil.publicKeyRingFromSecretKeyRing(recipient);
PGPPublicKeyRing senderPub = BCUtil.publicKeyRingFromSecretKeyRing(sender);
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SecretKeyRingProtector keyDecryptor = new UnprotectedKeysProtector();
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byte[] secretMessage = testMessage.getBytes(UTF8);
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ByteArrayOutputStream envelope = new ByteArrayOutputStream();
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OutputStream encryptor = PGPainless.createEncryptor()
.onOutputStream(envelope)
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.toRecipients(recipientPub)
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.usingSecureAlgorithms()
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.signWith(keyDecryptor, sender)
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.noArmor();
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Streams.pipeAll(new ByteArrayInputStream(secretMessage), encryptor);
encryptor.close();
byte[] encryptedSecretMessage = envelope.toByteArray();
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LOGGER.log(Level.INFO, "Sender: " + PublicKeyAlgorithm.fromId(sender.getPublicKey().getAlgorithm()) +
" Receiver: " + PublicKeyAlgorithm.fromId(recipient.getPublicKey().getAlgorithm()) +
" Encrypted Length: " + encryptedSecretMessage.length);
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// Juliet trieth to comprehend Romeos words
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ByteArrayInputStream envelopeIn = new ByteArrayInputStream(encryptedSecretMessage);
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DecryptionStream decryptor = PGPainless.createDecryptor()
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.onInputStream(envelopeIn)
.decryptWith(BCUtil.keyRingsToKeyRingCollection(recipient), keyDecryptor)
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.verifyWith(Collections.singleton(senderPub.getPublicKey().getKeyID()),
BCUtil.keyRingsToKeyRingCollection(senderPub))
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.ignoreMissingPublicKeys()
.build();
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ByteArrayOutputStream decryptedSecretMessage = new ByteArrayOutputStream();
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Streams.pipeAll(decryptor, decryptedSecretMessage);
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decryptor.close();
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assertTrue(Arrays.equals(secretMessage, decryptedSecretMessage.toByteArray()));
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PainlessResult result = decryptor.getResult();
assertTrue(result.containsVerifiedSignatureFrom(senderPub));
assertTrue(result.isIntegrityProtected());
assertTrue(result.isSigned());
assertTrue(result.isEncrypted());
assertTrue(result.isVerified());
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}
}