72 lines
2.9 KiB
Java
72 lines
2.9 KiB
Java
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package org.pgpainless.encryption_signing;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.NoSuchAlgorithmException;
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import org.bouncycastle.openpgp.PGPException;
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import org.bouncycastle.openpgp.PGPPublicKeyRing;
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import org.bouncycastle.openpgp.PGPSecretKeyRing;
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import org.bouncycastle.util.io.Streams;
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import org.junit.jupiter.api.Test;
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import org.pgpainless.PGPainless;
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import org.pgpainless.decryption_verification.ConsumerOptions;
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import org.pgpainless.decryption_verification.DecryptionStream;
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import org.pgpainless.decryption_verification.MessageMetadata;
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import org.pgpainless.key.SubkeyIdentifier;
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/**
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* Test encryption with anonymous recipients.
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*/
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public class HiddenRecipientEncryptionTest {
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@Test
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public void testAnonymousRecipientRoundtrip() throws PGPException, InvalidAlgorithmParameterException, NoSuchAlgorithmException, IOException {
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PGPSecretKeyRing secretKeys = PGPainless.generateKeyRing()
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.modernKeyRing("Alice <alice@pgpainless.org>");
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PGPPublicKeyRing certificate = PGPainless.extractCertificate(secretKeys);
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String msg = "Hello, World!\n";
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ByteArrayOutputStream ciphertextOut = new ByteArrayOutputStream();
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EncryptionStream encryptionStream = PGPainless.encryptAndOrSign()
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.onOutputStream(ciphertextOut)
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.withOptions(ProducerOptions.encrypt(
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EncryptionOptions.get()
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.addHiddenRecipient(certificate)
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));
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encryptionStream.write(msg.getBytes(StandardCharsets.UTF_8));
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encryptionStream.close();
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EncryptionResult result = encryptionStream.getResult();
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SubkeyIdentifier actualEncryptionKey = result.getRecipients().iterator().next();
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byte[] ciphertext = ciphertextOut.toByteArray();
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ByteArrayInputStream ciphertextIn = new ByteArrayInputStream(ciphertext);
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DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
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.onInputStream(ciphertextIn)
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.withOptions(ConsumerOptions.get()
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.addDecryptionKey(secretKeys));
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ByteArrayOutputStream plaintextOut = new ByteArrayOutputStream();
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Streams.pipeAll(decryptionStream, plaintextOut);
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decryptionStream.close();
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MessageMetadata metadata = decryptionStream.getMetadata();
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assertEquals(msg, plaintextOut.toString());
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assertTrue(metadata.getRecipientKeyIds().contains(0L));
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assertEquals(actualEncryptionKey, metadata.getDecryptionKey());
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}
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}
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