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https://github.com/pgpainless/pgpainless.git
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Add test to check, how messages with multiple SEIP packets are handled
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1 changed files with 216 additions and 0 deletions
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/*
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* Copyright 2021 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package investigations;
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import static org.junit.jupiter.api.Assertions.assertArrayEquals;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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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.io.OutputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.Date;
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import org.bouncycastle.bcpg.ArmoredOutputStream;
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import org.bouncycastle.openpgp.PGPEncryptedDataGenerator;
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import org.bouncycastle.openpgp.PGPException;
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import org.bouncycastle.openpgp.PGPLiteralDataGenerator;
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import org.bouncycastle.openpgp.PGPPublicKey;
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import org.bouncycastle.openpgp.PGPSecretKey;
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import org.bouncycastle.openpgp.PGPSecretKeyRing;
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import org.bouncycastle.openpgp.PGPSignatureGenerator;
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import org.bouncycastle.openpgp.operator.PGPDataEncryptorBuilder;
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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.algorithm.EncryptionPurpose;
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import org.pgpainless.algorithm.HashAlgorithm;
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import org.pgpainless.algorithm.SignatureType;
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import org.pgpainless.algorithm.SymmetricKeyAlgorithm;
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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.OpenPgpMetadata;
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import org.pgpainless.implementation.ImplementationFactory;
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import org.pgpainless.key.SubkeyIdentifier;
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import org.pgpainless.key.info.KeyRingInfo;
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import org.pgpainless.key.protection.UnlockSecretKey;
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import org.pgpainless.util.Passphrase;
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/**
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* This test is used to investigate, how messages of the form
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* {@code
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* SKESK for key 1
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* SEIP with sig by key 1
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* SKESK for key 1
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* SEIP with sig by key 2
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* }
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* are handled.
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*/
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public class InvestigateMultiSEIPMessageHandlingTest {
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private static final String KEY1 = "-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
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"Version: PGPainless\n" +
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"Comment: 9ADC EA42 5A77 175D CE89 A64C 8844 ADB3 5B25 32B3\n" +
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"Comment: A <a@pgpainless.org>\n" +
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"\n" +
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"lFgEYSLIYxYJKwYBBAHaRw8BAQdAcRpUuEQpAz6MZXyI1pYxrn3BYDM+nQ82rqJ8\n" +
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"UYotnGAAAQCUJztoX7z8C2TkDhiwNE3HA1YJn1oH0ZqYARhMD5fXPgxstBRBIDxh\n" +
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"QHBncGFpbmxlc3Mub3JnPoh4BBMWCgAgBQJhIshjAhsBBRYCAwEABAsJCAcFFQoJ\n" +
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"CAsCHgECGQEACgkQiESts1slMrO3UQEAhawYA+P05pXx/IXZw7iYVZgycNJgdrpl\n" +
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"AGE/pqkKz6AA/jZ4BQQQiS76H2n1w8jbcxfjOu8OTeOU7vPiZ0s6On0PnF0EYSLI\n" +
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"YxIKKwYBBAGXVQEFAQEHQCU/tyOZyPSdceSO1tuPMODBLigOWv3kz3S6rdoBdngL\n" +
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"AwEIBwAA/3cmc8CxylajLeReu5z6mB+LYXQFIZlLQugQxFlUd34gD+SIdQQYFgoA\n" +
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"HQUCYSLIYwIbDAUWAgMBAAQLCQgHBRUKCQgLAh4BAAoJEIhErbNbJTKzO4kA/2P0\n" +
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"gfF4U5HYgrkvpc60U8XoU4i1wn7nuHSQdOCATBxhAQDamNiJkFuwVbdr3Sm9wPj7\n" +
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"e90hAGS5S8MYtvgqohWgApxYBGEiyGMWCSsGAQQB2kcPAQEHQB+AsjQrdFYb3FOm\n" +
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"8gr00Fr4jGO4l6JnZvcjLTLNPQ9ZAAD/b4yjw0uL3YOvLFoEfqc//Ys+ch818dnY\n" +
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"207tl2vqBUURrYjVBBgWCgB9BQJhIshjAhsCBRYCAwEABAsJCAcFFQoJCAsCHgFf\n" +
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"IAQZFgoABgUCYSLIYwAKCRCvyvLofXqtnBTLAP4tD6zt0pYuCsoESOcnKzAAnVAS\n" +
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"UFQtB+h3kusS9XkQ/wD9G5dWb83n0y0kjxk5Dx8JSxExYTfr1lHW80HbO8JUrQ0A\n" +
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"CgkQiESts1slMrNDSAD+JFfqSonAxBIVVjm+eUtusHVSWEHhL5t2e11PBGX4FlMB\n" +
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"AIS4R9MQjofP/wK0bv/s4EAemt0pLjl3UBSj1hyOo/QN\n" +
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"=2qDX\n" +
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"-----END PGP PRIVATE KEY BLOCK-----";
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private static final String KEY2 = "-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
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"Version: PGPainless\n" +
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"Comment: E224 69A0 9667 85AE 3E54 4258 37C9 616B 54C2 6E5B\n" +
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"Comment: B <b@pgpainless.org>\n" +
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"\n" +
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"lFgEYSLIYxYJKwYBBAHaRw8BAQdAHON5KoqLFv8ZwWUD5b4OVCvg5NTireZ5Xon9\n" +
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"9o5kQs4AAP0Tv9E98dv79aEQkRNT0y0ARXMHrPnrDZlVeTwSoYZmnRB8tBRCIDxi\n" +
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"QHBncGFpbmxlc3Mub3JnPoh4BBMWCgAgBQJhIshjAhsBBRYCAwEABAsJCAcFFQoJ\n" +
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"CAsCHgECGQEACgkQN8lha1TCblvvZwD/R98IEHgrKA1QcTAOTdAeZr3N2JbfiI8S\n" +
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"RCnRSZyxZA8BAJflL0yV0RkEawiLYFXHdr6MmXvDD8vcWtRkvudyc1QJnF0EYSLI\n" +
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"YxIKKwYBBAGXVQEFAQEHQJITVbNYNfGslnFs6pkkGsMOoe+kK+tKjJ1ECJ2enpct\n" +
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"AwEIBwAA/2HEXwf73zKsND8TQQpwGVyelSB2E5kvvTYEMICOalGoDTSIdQQYFgoA\n" +
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"HQUCYSLIYwIbDAUWAgMBAAQLCQgHBRUKCQgLAh4BAAoJEDfJYWtUwm5bWjEBAMnI\n" +
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"PayRwnuRNrjxUMesOOrFXi8So4cFTbf0VWT2wmrvAPwOAk0pcoikwP5gWSVhlEHp\n" +
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"A2qmM5j6MiJzwb8o2j7DDpxYBGEiyGMWCSsGAQQB2kcPAQEHQHvKk+Nb1ffEoipo\n" +
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"RsozdQAplIqGs++M0DcdR85pFWWDAAEAqqEYtlZqCDGXrndD495QJvc5bBkrRyxb\n" +
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"K0ESndh27ZIN34jVBBgWCgB9BQJhIshjAhsCBRYCAwEABAsJCAcFFQoJCAsCHgFf\n" +
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"IAQZFgoABgUCYSLIYwAKCRCWR2MKq82PQQ0bAQCbWxtyDCDMakDnD1wdix1bZ5gv\n" +
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"873RNdo4LwluVId1RwD+L+meOEk66U53A6GBRlyo639Mnhqyjkssk43siDVI4AkA\n" +
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"CgkQN8lha1TCblvsvwEA/K72P5m6B0trzjPqPRdke42oeLMfK7k0jZaPcd72YuQA\n" +
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"/3YNr1L5pHVWoIRhOs/4lkic6P7OCiuMWRpKDt6ZZusD\n" +
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"=0mZj\n" +
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"-----END PGP PRIVATE KEY BLOCK-----\n";
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private static final String MESSAGE = "-----BEGIN PGP MESSAGE-----\n" +
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"Version: BCPG v1.69\n" +
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"\n" +
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"hF4DrtaS0Fxq0aMSAQdAbzk04kiO9cpqeEFIG5gDrtfUg/roteHfHrAj4z48NFUw\n" +
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"KXxtZ4Fyy/LGEenKAHDr8gBNWD7jyQSRlC8YFVxwVqT4Kk52+2M5U6jf6XDKMJxA\n" +
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"0q4BdbOTMZvZ+CSdJNkRd88frSCyJwrYCmaasmfOsZGousS5QiL7u/ChbhBAKyfB\n" +
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"4gkYrVgG1Z43ZvsVe4TnUYitAdM1KEMSwGsbfN5qZrJu0f/XwCZjOdl3wCOFMFs9\n" +
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"AQ51WRdd8TA20XAyeiBRDbPe3tZwQgPOC/1+Qw6AYzoWpCgLFQQWCOsboNj8xqa0\n" +
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"aPUDnm9pR/dAe1vJogZD/V9W4fKwvn+tJsmCQSuU2mCEXgOu1pLQXGrRoxIBB0DS\n" +
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"6tvqhqsOD2rrIQuKkJVbsWFWIW59PC50J8+BfPqJczBi2L7HTUy2nsx9tsuRi8Cd\n" +
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"/qGHgVxs6cHZGWN7IeHuiD6jciFSXvJR+RrkJQpgpAnSqQEXJmHi4IJfJhVDNwt0\n" +
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"4sfLhTW3seQZUu/uAp4wMO3izP7yfErNSX2MoP25AxtrR10ImmMK6YIHJyEb3j4L\n" +
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"IZHjNkHcthuPVgfDCmmRLAJYTLoXKfLAmL3M/d+hIzoudozKcnc4xNZ5ac9De8Pf\n" +
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"YMnkq1n/bnFAfgc12SeAHSqSvnqVNqgb59DItSj3bC8GMnSQ1jkqODtYPdiRd2hE\n" +
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"osUF5+pq7SnxlPc=\n" +
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"=kvka\n" +
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"-----END PGP MESSAGE-----";
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private static final String data1 = "Hello, World!\n";
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private static final String data2 = "Appendix\n";
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@Test
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public void generateTestMessage() throws PGPException, IOException {
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PGPSecretKeyRing ring1 = PGPainless.readKeyRing().secretKeyRing(KEY1);
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KeyRingInfo info1 = PGPainless.inspectKeyRing(ring1);
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PGPPublicKey cryptKey1 = info1.getEncryptionSubkeys(EncryptionPurpose.STORAGE_AND_COMMUNICATIONS).get(0);
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PGPSecretKey signKey1 = ring1.getSecretKey(info1.getSigningSubkeys().get(0).getKeyID());
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PGPSecretKeyRing ring2 = PGPainless.readKeyRing().secretKeyRing(KEY2);
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KeyRingInfo info2 = PGPainless.inspectKeyRing(ring2);
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PGPSecretKey signKey2 = ring2.getSecretKey(info2.getSigningSubkeys().get(0).getKeyID());
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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ArmoredOutputStream armorOut = new ArmoredOutputStream(out);
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PGPDataEncryptorBuilder cryptBuilder = ImplementationFactory.getInstance().getPGPDataEncryptorBuilder(SymmetricKeyAlgorithm.AES_256);
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cryptBuilder.setWithIntegrityPacket(true);
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encryptAndSign(cryptKey1, signKey1, armorOut, data1.getBytes(StandardCharsets.UTF_8));
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encryptAndSign(cryptKey1, signKey2, armorOut, data2.getBytes(StandardCharsets.UTF_8));
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armorOut.close();
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// CHECKSTYLE:OFF
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System.out.println(out);
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// CHECKSTYLE:ON
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}
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private void encryptAndSign(PGPPublicKey cryptKey, PGPSecretKey signKey, ArmoredOutputStream armorOut, byte[] data) throws IOException, PGPException {
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PGPDataEncryptorBuilder cryptBuilder = ImplementationFactory.getInstance().getPGPDataEncryptorBuilder(SymmetricKeyAlgorithm.AES_256);
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cryptBuilder.setWithIntegrityPacket(true);
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PGPEncryptedDataGenerator cryptGen = new PGPEncryptedDataGenerator(cryptBuilder);
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cryptGen.addMethod(ImplementationFactory.getInstance().getPublicKeyKeyEncryptionMethodGenerator(cryptKey));
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OutputStream cryptStream = cryptGen.open(armorOut, new byte[512]);
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PGPSignatureGenerator sigGen = new PGPSignatureGenerator(ImplementationFactory.getInstance()
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.getPGPContentSignerBuilder(signKey.getPublicKey().getAlgorithm(), HashAlgorithm.SHA512.getAlgorithmId()));
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sigGen.init(SignatureType.BINARY_DOCUMENT.getCode(), UnlockSecretKey
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.unlockSecretKey(signKey, (Passphrase) null));
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sigGen.generateOnePassVersion(false).encode(cryptStream);
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PGPLiteralDataGenerator litGen = new PGPLiteralDataGenerator();
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OutputStream litOut = litGen.open(cryptStream, PGPLiteralDataGenerator.BINARY, "", new Date(), new byte[512]);
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for (byte b : data) {
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litOut.write(b);
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sigGen.update(b);
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}
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litOut.flush();
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litOut.close();
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sigGen.generate().encode(cryptStream);
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cryptStream.flush();
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cryptStream.close();
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}
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@Test
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public void testDecryptAndVerifyDoesIgnoreAppendedSEIPData() throws IOException, PGPException {
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PGPSecretKeyRing ring1 = PGPainless.readKeyRing().secretKeyRing(KEY1);
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PGPSecretKeyRing ring2 = PGPainless.readKeyRing().secretKeyRing(KEY2);
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ConsumerOptions options = new ConsumerOptions()
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.addVerificationCert(PGPainless.extractCertificate(ring1))
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.addVerificationCert(PGPainless.extractCertificate(ring2))
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.addDecryptionKey(ring1);
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DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
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.onInputStream(new ByteArrayInputStream(MESSAGE.getBytes(StandardCharsets.UTF_8)))
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.withOptions(options);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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Streams.pipeAll(decryptionStream, out);
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decryptionStream.close();
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assertArrayEquals(data1.getBytes(StandardCharsets.UTF_8), out.toByteArray());
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OpenPgpMetadata metadata = decryptionStream.getResult();
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assertEquals(1, metadata.getVerifiedSignatures().size(),
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"The first SEIP packet is signed exactly only by the signing key of ring1.");
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assertEquals(
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new SubkeyIdentifier(ring1, new KeyRingInfo(ring1).getSigningSubkeys().get(0).getKeyID()),
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metadata.getVerifiedSignatures().keySet().iterator().next());
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}
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}
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