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Remove ProofUtil.
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// SPDX-FileCopyrightText: 2021 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.signature.consumer;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.NoSuchElementException;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import javax.annotation.Nullable;
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import org.bouncycastle.bcpg.sig.NotationData;
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import org.bouncycastle.openpgp.PGPException;
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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.PGPSignature;
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import org.bouncycastle.openpgp.PGPSignatureSubpacketVector;
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import org.pgpainless.PGPainless;
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import org.pgpainless.key.info.KeyRingInfo;
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import org.pgpainless.key.protection.SecretKeyRingProtector;
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import org.pgpainless.signature.builder.DirectKeySignatureBuilder;
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import org.pgpainless.signature.builder.SelfSignatureBuilder;
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public class ProofUtil {
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public PGPSecretKeyRing addProof(PGPSecretKeyRing secretKey, SecretKeyRingProtector protector, Proof proof)
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throws PGPException {
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return addProofs(secretKey, protector, Collections.singletonList(proof));
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}
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public PGPSecretKeyRing addProofs(PGPSecretKeyRing secretKey, SecretKeyRingProtector protector, List<Proof> proofs)
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throws PGPException {
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KeyRingInfo info = PGPainless.inspectKeyRing(secretKey);
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return addProofs(secretKey, protector, info.getPrimaryUserId(), proofs);
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}
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public PGPSecretKeyRing addProof(PGPSecretKeyRing secretKey, SecretKeyRingProtector protector, String userId, Proof proof)
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throws PGPException {
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return addProofs(secretKey, protector, userId, Collections.singletonList(proof));
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}
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public PGPSecretKeyRing addProofs(PGPSecretKeyRing secretKey, SecretKeyRingProtector protector,
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@Nullable String userId, List<Proof> proofs)
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throws PGPException {
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KeyRingInfo info = PGPainless.inspectKeyRing(secretKey);
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PGPSecretKey certificationKey = secretKey.getSecretKey();
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PGPPublicKey certificationPubKey = certificationKey.getPublicKey();
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PGPSignature certification = null;
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// null userid -> make direct key sig
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if (userId == null) {
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PGPSignature previousCertification = info.getLatestDirectKeySelfSignature();
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if (previousCertification == null) {
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throw new NoSuchElementException("No previous valid direct key signature found.");
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}
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DirectKeySignatureBuilder sigBuilder = new DirectKeySignatureBuilder(certificationKey, protector, previousCertification);
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for (Proof proof : proofs) {
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sigBuilder.getHashedSubpackets().addNotationData(false, proof.getNotationName(), proof.getNotationValue());
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}
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certification = sigBuilder.build(certificationPubKey);
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certificationPubKey = PGPPublicKey.addCertification(certificationPubKey, certification);
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} else {
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if (!info.isUserIdValid(userId)) {
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throw new IllegalArgumentException("User ID " + userId + " seems to not be valid for this key.");
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}
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PGPSignature previousCertification = info.getLatestUserIdCertification(userId);
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if (previousCertification == null) {
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throw new NoSuchElementException("No previous valid user-id certification found.");
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}
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SelfSignatureBuilder sigBuilder = new SelfSignatureBuilder(certificationKey, protector, previousCertification);
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for (Proof proof : proofs) {
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sigBuilder.getHashedSubpackets().addNotationData(false, proof.getNotationName(), proof.getNotationValue());
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}
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certification = sigBuilder.build(certificationPubKey, userId);
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certificationPubKey = PGPPublicKey.addCertification(certificationPubKey, userId, certification);
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}
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certificationKey = PGPSecretKey.replacePublicKey(certificationKey, certificationPubKey);
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secretKey = PGPSecretKeyRing.insertSecretKey(secretKey, certificationKey);
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return secretKey;
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}
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public static class Proof {
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public static final String NOTATION_NAME = "proof@metacode.biz";
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private final String notationValue;
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public Proof(String notationValue) {
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if (notationValue == null) {
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throw new IllegalArgumentException("Notation value cannot be null.");
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}
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String trimmed = notationValue.trim();
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if (trimmed.isEmpty()) {
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throw new IllegalArgumentException("Notation value cannot be empty.");
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}
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this.notationValue = trimmed;
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}
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public String getNotationName() {
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return NOTATION_NAME;
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}
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public String getNotationValue() {
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return notationValue;
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}
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public static Proof fromMatrixPermalink(String username, String eventPermalink) {
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Pattern pattern = Pattern.compile("^https:\\/\\/matrix\\.to\\/#\\/(![a-zA-Z]{18}:matrix\\.org)\\/(\\$[a-zA-Z0-9\\-_]{43})\\?via=.*$");
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Matcher matcher = pattern.matcher(eventPermalink);
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if (!matcher.matches()) {
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throw new IllegalArgumentException("Invalid matrix event permalink.");
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}
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String roomId = matcher.group(1);
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String eventId = matcher.group(2);
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return new Proof(String.format("matrix:u/%s?org.keyoxide.r=%s&org.keyoxide.e=%s", username, roomId, eventId));
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}
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@Override
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public String toString() {
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return getNotationName() + "=" + getNotationValue();
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}
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}
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public static List<Proof> getProofs(PGPSignature signature) {
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PGPSignatureSubpacketVector hashedSubpackets = signature.getHashedSubPackets();
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NotationData[] notations = hashedSubpackets.getNotationDataOccurrences();
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List<Proof> proofs = new ArrayList<>();
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for (NotationData notation : notations) {
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if (notation.getNotationName().equals(Proof.NOTATION_NAME)) {
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proofs.add(new Proof(notation.getNotationValue()));
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}
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}
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return proofs;
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}
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}
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@ -1,77 +0,0 @@
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// SPDX-FileCopyrightText: 2021 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.signature.builder;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertNotNull;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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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.PGPSecretKeyRing;
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import org.bouncycastle.openpgp.PGPSignature;
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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.key.info.KeyRingInfo;
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import org.pgpainless.key.protection.SecretKeyRingProtector;
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import org.pgpainless.signature.consumer.ProofUtil;
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public class ProofUtilTest {
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@Test
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public void testEmptyProofThrows() {
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assertThrows(IllegalArgumentException.class, () -> new ProofUtil.Proof(""));
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}
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@Test
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public void testNullProofThrows() {
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assertThrows(IllegalArgumentException.class, () -> new ProofUtil.Proof(null));
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}
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@Test
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public void proofIsTrimmed() {
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ProofUtil.Proof proof = new ProofUtil.Proof(" foo:bar ");
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assertEquals("proof@metacode.biz=foo:bar", proof.toString());
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}
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@Test
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public void testMatrixProof() {
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String matrixUser = "@foo:matrix.org";
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String permalink = "https://matrix.to/#/!dBfQZxCoGVmSTujfiv:matrix.org/$3dVX1nv3lmwnKxc0mgto_Sf-REVr45Z6G7LWLWal10w?via=chat.matrix.org";
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ProofUtil.Proof proof = ProofUtil.Proof.fromMatrixPermalink(matrixUser, permalink);
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assertEquals("proof@metacode.biz=matrix:u/@foo:matrix.org?org.keyoxide.r=!dBfQZxCoGVmSTujfiv:matrix.org&org.keyoxide.e=$3dVX1nv3lmwnKxc0mgto_Sf-REVr45Z6G7LWLWal10w",
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proof.toString());
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}
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@Test
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public void testXmppBasicProof() {
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String jid = "alice@pgpainless.org";
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ProofUtil.Proof proof = new ProofUtil.Proof("xmpp:" + jid);
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assertEquals("proof@metacode.biz=xmpp:alice@pgpainless.org", proof.toString());
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}
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@Test
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public void testAddProof()
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throws PGPException, InvalidAlgorithmParameterException, NoSuchAlgorithmException, InterruptedException {
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String userId = "Alice <alice@pgpainless.org>";
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PGPSecretKeyRing secretKey = PGPainless.generateKeyRing()
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.modernKeyRing(userId, null);
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Thread.sleep(1000L);
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secretKey = new ProofUtil().addProof(
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secretKey,
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SecretKeyRingProtector.unprotectedKeys(),
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new ProofUtil.Proof("xmpp:alice@pgpainless.org"));
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KeyRingInfo info = PGPainless.inspectKeyRing(secretKey);
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PGPSignature signature = info.getLatestUserIdCertification(userId);
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assertNotNull(signature);
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assertFalse(ProofUtil.getProofs(signature).isEmpty());
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}
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}
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