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Postpone decryption of PKESK if secret key passphrase is missing and try next PKESK first before passphrase retrieval using callback 

Fixes #186
This commit is contained in:
Paul Schaub 2021-09-15 16:33:03 +02:00
parent 81379a5176
commit ce645fc429
Signed by: vanitasvitae
GPG Key ID: 62BEE9264BF17311
14 changed files with 466 additions and 69 deletions
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2
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/ConsumerOptions.java
View File

@ -257,7 +257,7 @@ public class ConsumerOptions {
return missingCertificateCallback;
}
public @Nullable SecretKeyRingProtector getSecretKeyProtector(PGPSecretKeyRing decryptionKeyRing) {
public @Nonnull SecretKeyRingProtector getSecretKeyProtector(PGPSecretKeyRing decryptionKeyRing) {
return decryptionKeys.get(decryptionKeyRing);
}

218
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/DecryptionStreamFactory.java
View File

@ -61,6 +61,7 @@ import org.pgpainless.exception.WrongConsumingMethodException;
import org.pgpainless.implementation.ImplementationFactory;
import org.pgpainless.key.SubkeyIdentifier;
import org.pgpainless.key.info.KeyRingInfo;
import org.pgpainless.key.protection.SecretKeyRingProtector;
import org.pgpainless.key.protection.UnlockSecretKey;
import org.pgpainless.signature.DetachedSignature;
import org.pgpainless.signature.OnePassSignatureCheck;
@ -68,6 +69,7 @@ import org.pgpainless.signature.SignatureUtils;
import org.pgpainless.util.CRCingArmoredInputStreamWrapper;
import org.pgpainless.util.IntegrityProtectedInputStream;
import org.pgpainless.util.Passphrase;
import org.pgpainless.util.Tuple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -276,93 +278,173 @@ public final class DecryptionStreamFactory {
PGPPrivateKey decryptionKey = null;
PGPPublicKeyEncryptedData encryptedSessionKey = null;
List<PGPPBEEncryptedData> passphraseProtected = new ArrayList<>();
List<PGPPublicKeyEncryptedData> publicKeyProtected = new ArrayList<>();
List<Tuple<SubkeyIdentifier, PGPPublicKeyEncryptedData>> postponedDueToMissingPassphrase = new ArrayList<>();
// Sort PKESK and SKESK packets
while (encryptedDataIterator.hasNext()) {
PGPEncryptedData encryptedData = encryptedDataIterator.next();
// TODO: Can we just skip non-integrity-protected packages?
// TODO: Maybe just skip non-integrity-protected packages?
if (!encryptedData.isIntegrityProtected()) {
throw new MessageNotIntegrityProtectedException();
}
// Data is passphrase encrypted
// SKESK
if (encryptedData instanceof PGPPBEEncryptedData) {
PGPPBEEncryptedData pbeEncryptedData = (PGPPBEEncryptedData) encryptedData;
for (Passphrase passphrase : options.getDecryptionPassphrases()) {
PBEDataDecryptorFactory passphraseDecryptor = ImplementationFactory.getInstance()
.getPBEDataDecryptorFactory(passphrase);
try {
InputStream decryptedDataStream = pbeEncryptedData.getDataStream(passphraseDecryptor);
SymmetricKeyAlgorithm symmetricKeyAlgorithm = SymmetricKeyAlgorithm.fromId(
pbeEncryptedData.getSymmetricAlgorithm(passphraseDecryptor));
throwIfAlgorithmIsRejected(symmetricKeyAlgorithm);
resultBuilder.setSymmetricKeyAlgorithm(symmetricKeyAlgorithm);
integrityProtectedEncryptedInputStream = new IntegrityProtectedInputStream(decryptedDataStream, pbeEncryptedData);
return integrityProtectedEncryptedInputStream;
} catch (PGPException e) {
LOGGER.debug("Probable passphrase mismatch, skip PBE encrypted data block", e);
}
}
passphraseProtected.add((PGPPBEEncryptedData) encryptedData);
}
// data is public key encrypted
// PKESK
else if (encryptedData instanceof PGPPublicKeyEncryptedData) {
PGPPublicKeyEncryptedData publicKeyEncryptedData = (PGPPublicKeyEncryptedData) encryptedData;
long keyId = publicKeyEncryptedData.getKeyID();
if (!options.getDecryptionKeys().isEmpty()) {
// Known key id
if (keyId != 0) {
LOGGER.debug("PGPEncryptedData is encrypted for key {}", Long.toHexString(keyId));
resultBuilder.addRecipientKeyId(keyId);
PGPSecretKeyRing decryptionKeyRing = findDecryptionKeyRing(keyId);
if (decryptionKeyRing != null) {
PGPSecretKey secretKey = decryptionKeyRing.getSecretKey(keyId);
LOGGER.debug("Found respective secret key {}", Long.toHexString(keyId));
// Watch out! This assignment is possibly done multiple times.
encryptedSessionKey = publicKeyEncryptedData;
decryptionKey = UnlockSecretKey.unlockSecretKey(secretKey, options.getSecretKeyProtector(decryptionKeyRing));
resultBuilder.setDecryptionKey(new SubkeyIdentifier(decryptionKeyRing, decryptionKey.getKeyID()));
}
}
publicKeyProtected.add((PGPPublicKeyEncryptedData) encryptedData);
}
}
// Hidden recipient
else {
LOGGER.debug("Hidden recipient detected. Try to decrypt with all available secret keys.");
outerloop: for (PGPSecretKeyRing ring : options.getDecryptionKeys()) {
KeyRingInfo info = new KeyRingInfo(ring);
List<PGPPublicKey> encryptionSubkeys = info.getEncryptionSubkeys(EncryptionPurpose.STORAGE_AND_COMMUNICATIONS);
for (PGPPublicKey pubkey : encryptionSubkeys) {
PGPSecretKey key = ring.getSecretKey(pubkey.getKeyID());
if (key == null) {
continue;
}
// Try decryption with passphrases first
for (PGPPBEEncryptedData pbeEncryptedData : passphraseProtected) {
for (Passphrase passphrase : options.getDecryptionPassphrases()) {
PBEDataDecryptorFactory passphraseDecryptor = ImplementationFactory.getInstance()
.getPBEDataDecryptorFactory(passphrase);
try {
InputStream decryptedDataStream = pbeEncryptedData.getDataStream(passphraseDecryptor);
PGPPrivateKey privateKey = UnlockSecretKey.unlockSecretKey(key, options.getSecretKeyProtector(ring).getDecryptor(key.getKeyID()));
PublicKeyDataDecryptorFactory decryptorFactory = ImplementationFactory.getInstance().getPublicKeyDataDecryptorFactory(privateKey);
try {
publicKeyEncryptedData.getSymmetricAlgorithm(decryptorFactory); // will only succeed if we have the right secret key
LOGGER.debug("Found correct key {} for hidden recipient decryption.", Long.toHexString(key.getKeyID()));
decryptionKey = privateKey;
resultBuilder.setDecryptionKey(new SubkeyIdentifier(ring, decryptionKey.getKeyID()));
encryptedSessionKey = publicKeyEncryptedData;
break outerloop;
} catch (PGPException | ClassCastException e) {
LOGGER.debug("Skipping wrong key {} for hidden recipient decryption.", Long.toHexString(key.getKeyID()), e);
}
}
}
}
SymmetricKeyAlgorithm symmetricKeyAlgorithm = SymmetricKeyAlgorithm.fromId(
pbeEncryptedData.getSymmetricAlgorithm(passphraseDecryptor));
throwIfAlgorithmIsRejected(symmetricKeyAlgorithm);
resultBuilder.setSymmetricKeyAlgorithm(symmetricKeyAlgorithm);
integrityProtectedEncryptedInputStream = new IntegrityProtectedInputStream(decryptedDataStream, pbeEncryptedData);
return integrityProtectedEncryptedInputStream;
} catch (PGPException e) {
LOGGER.debug("Probable passphrase mismatch, skip PBE encrypted data block", e);
}
}
}
// Then try decryption with public key encryption
for (PGPPublicKeyEncryptedData publicKeyEncryptedData : publicKeyProtected) {
PGPPrivateKey privateKey = null;
if (options.getDecryptionKeys().isEmpty()) {
break;
}
long keyId = publicKeyEncryptedData.getKeyID();
// Wildcard KeyID
if (keyId == 0L) {
LOGGER.debug("Hidden recipient detected. Try to decrypt with all available secret keys.");
for (PGPSecretKeyRing secretKeys : options.getDecryptionKeys()) {
if (privateKey != null) {
break;
}
KeyRingInfo info = new KeyRingInfo(secretKeys);
List<PGPPublicKey> encryptionSubkeys = info.getEncryptionSubkeys(EncryptionPurpose.STORAGE_AND_COMMUNICATIONS);
for (PGPPublicKey pubkey : encryptionSubkeys) {
PGPSecretKey secretKey = secretKeys.getSecretKey(pubkey.getKeyID());
// Skip missing secret key
if (secretKey == null) {
continue;
}
privateKey = tryPublicKeyDecryption(secretKeys, secretKey, publicKeyEncryptedData, postponedDueToMissingPassphrase, true);
}
}
}
// Non-wildcard key-id
else {
LOGGER.debug("PGPEncryptedData is encrypted for key {}", Long.toHexString(keyId));
resultBuilder.addRecipientKeyId(keyId);
PGPSecretKeyRing secretKeys = findDecryptionKeyRing(keyId);
if (secretKeys == null) {
LOGGER.debug("Missing certificate of {}. Skip.", Long.toHexString(keyId));
continue;
}
PGPSecretKey secretKey = secretKeys.getSecretKey(keyId);
privateKey = tryPublicKeyDecryption(secretKeys, secretKey, publicKeyEncryptedData, postponedDueToMissingPassphrase, true);
}
if (privateKey == null) {
continue;
}
decryptionKey = privateKey;
encryptedSessionKey = publicKeyEncryptedData;
}
// Try postponed keys with missing passphrases (will cause missing passphrase callbacks to fire)
if (encryptedSessionKey == null) {
for (Tuple<SubkeyIdentifier, PGPPublicKeyEncryptedData> missingPassphrases : postponedDueToMissingPassphrase) {
SubkeyIdentifier keyId = missingPassphrases.getA();
PGPPublicKeyEncryptedData publicKeyEncryptedData = missingPassphrases.getB();
PGPSecretKeyRing secretKeys = findDecryptionKeyRing(keyId.getKeyId());
PGPSecretKey secretKey = secretKeys.getSecretKey(keyId.getSubkeyId());
PGPPrivateKey privateKey = tryPublicKeyDecryption(secretKeys, secretKey, publicKeyEncryptedData, postponedDueToMissingPassphrase, false);
if (privateKey == null) {
continue;
}
decryptionKey = privateKey;
encryptedSessionKey = publicKeyEncryptedData;
break;
}
}
return decryptWith(encryptedSessionKey, decryptionKey);
}
/**
* Try decryption of the provided public-key-encrypted-data using the given secret key.
* If the secret key is encrypted and the secret key protector does not have a passphrase available and the boolean
* postponeIfMissingPassphrase is true, data decryption is postponed by pushing a tuple of the encrypted data decryption key
* identifier to the postponed list.
*
* This method only returns a non-null private key, if the private key is able to decrypt the message successfully.
*
* @param secretKeys secret key ring
* @param secretKey secret key
* @param publicKeyEncryptedData encrypted data which is tried to decrypt using the secret key
* @param postponed list of postponed decryptions due to missing secret key passphrases
* @param postponeIfMissingPassphrase flag to specify whether missing secret key passphrases should result in postponed decryption
* @return private key if decryption is successful, null if decryption is unsuccessful or postponed
*
* @throws PGPException in case of an OpenPGP error
*/
private PGPPrivateKey tryPublicKeyDecryption(
PGPSecretKeyRing secretKeys,
PGPSecretKey secretKey,
PGPPublicKeyEncryptedData publicKeyEncryptedData,
List<Tuple<SubkeyIdentifier, PGPPublicKeyEncryptedData>> postponed,
boolean postponeIfMissingPassphrase) throws PGPException {
SecretKeyRingProtector protector = options.getSecretKeyProtector(secretKeys);
if (postponeIfMissingPassphrase && !protector.hasPassphraseFor(secretKey.getKeyID())) {
// Postpone decryption with key with missing passphrase
SubkeyIdentifier identifier = new SubkeyIdentifier(secretKeys, secretKey.getKeyID());
postponed.add(new Tuple<>(identifier, publicKeyEncryptedData));
return null;
}
PGPPrivateKey privateKey = UnlockSecretKey.unlockSecretKey(
secretKey, protector.getDecryptor(secretKey.getKeyID()));
// test if we have the right private key
PublicKeyDataDecryptorFactory decryptorFactory = ImplementationFactory.getInstance()
.getPublicKeyDataDecryptorFactory(privateKey);
try {
publicKeyEncryptedData.getSymmetricAlgorithm(decryptorFactory); // will only succeed if we have the right secret key
LOGGER.debug("Found correct decryption key {}.", Long.toHexString(secretKey.getKeyID()));
resultBuilder.setDecryptionKey(new SubkeyIdentifier(secretKeys, privateKey.getKeyID()));
return privateKey;
} catch (PGPException | ClassCastException e) {
return null;
}
}
private InputStream decryptWith(PGPPublicKeyEncryptedData encryptedSessionKey, PGPPrivateKey decryptionKey)
throws PGPException {
if (decryptionKey == null) {
if (decryptionKey == null || encryptedSessionKey == null) {
throw new MissingDecryptionMethodException("Decryption failed - No suitable decryption key or passphrase found");
}

10
pgpainless-core/src/main/java/org/pgpainless/key/protection/CachingSecretKeyRingProtector.java
View File

@ -149,6 +149,16 @@ public class CachingSecretKeyRingProtector implements SecretKeyRingProtector, Se
return passphrase;
}
@Override
public boolean hasPassphrase(Long keyId) {
return cache.containsKey(keyId);
}
@Override
public boolean hasPassphraseFor(Long keyId) {
return cache.containsKey(keyId);
}
@Override
@Nullable
public PBESecretKeyDecryptor getDecryptor(@Nonnull Long keyId) throws PGPException {

15
pgpainless-core/src/main/java/org/pgpainless/key/protection/PasswordBasedSecretKeyRingProtector.java
View File

@ -65,6 +65,11 @@ public class PasswordBasedSecretKeyRingProtector implements SecretKeyRingProtect
}
return null;
}
@Override
public boolean hasPassphrase(Long keyId) {
return keyRing.getPublicKey(keyId) != null;
}
};
return new PasswordBasedSecretKeyRingProtector(protectionSettings, passphraseProvider);
}
@ -80,10 +85,20 @@ public class PasswordBasedSecretKeyRingProtector implements SecretKeyRingProtect
}
return null;
}
@Override
public boolean hasPassphrase(Long keyId) {
return keyId == key.getKeyID();
}
};
return new PasswordBasedSecretKeyRingProtector(protectionSettings, passphraseProvider);
}
@Override
public boolean hasPassphraseFor(Long keyId) {
return passphraseProvider.hasPassphrase(keyId);
}
@Override
@Nullable
public PBESecretKeyDecryptor getDecryptor(Long keyId) throws PGPException {

2
pgpainless-core/src/main/java/org/pgpainless/key/protection/SecretKeyRingProtector.java
View File

@ -38,6 +38,8 @@ import org.pgpainless.util.Passphrase;
*/
public interface SecretKeyRingProtector {
boolean hasPassphraseFor(Long keyId);
/**
* Return a decryptor for the key of id {@code keyId}.
* This method returns null if the key is unprotected.

5
pgpainless-core/src/main/java/org/pgpainless/key/protection/UnprotectedKeysProtector.java
View File

@ -25,6 +25,11 @@ import org.bouncycastle.openpgp.operator.PBESecretKeyEncryptor;
*/
public class UnprotectedKeysProtector implements SecretKeyRingProtector {
@Override
public boolean hasPassphraseFor(Long keyId) {
return true;
}
@Override
@Nullable
public PBESecretKeyDecryptor getDecryptor(Long keyId) {

5
pgpainless-core/src/main/java/org/pgpainless/key/protection/passphrase_provider/MapBasedPassphraseProvider.java
View File

@ -45,4 +45,9 @@ public class MapBasedPassphraseProvider implements SecretKeyPassphraseProvider {
public Passphrase getPassphraseFor(Long keyId) {
return map.get(keyId);
}
@Override
public boolean hasPassphrase(Long keyId) {
return map.containsKey(keyId);
}
}

2
pgpainless-core/src/main/java/org/pgpainless/key/protection/passphrase_provider/SecretKeyPassphraseProvider.java
View File

@ -46,4 +46,6 @@ public interface SecretKeyPassphraseProvider {
* @return passphrase or null, if no passphrase record has been found.
*/
@Nullable Passphrase getPassphraseFor(Long keyId);
boolean hasPassphrase(Long keyId);
}

5
pgpainless-core/src/main/java/org/pgpainless/key/protection/passphrase_provider/SolitaryPassphraseProvider.java
View File

@ -36,4 +36,9 @@ public class SolitaryPassphraseProvider implements SecretKeyPassphraseProvider {
// always return the same passphrase.
return passphrase;
}
@Override
public boolean hasPassphrase(Long keyId) {
return true;
}
}

35
pgpainless-core/src/main/java/org/pgpainless/util/Tuple.java Normal file
View File

@ -0,0 +1,35 @@
/*
* Copyright 2021 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.
*/
package org.pgpainless.util;
public class Tuple<A, B> {
private final A a;
private final B b;
public Tuple(A a, B b) {
this.a = a;
this.b = b;
}
public A getA() {
return a;
}
public B getB() {
return b;
}
}

221
pgpainless-core/src/test/java/org/pgpainless/decryption_verification/PostponeDecryptionUsingKeyWithMissingPassphraseTest.java Normal file
View File

@ -0,0 +1,221 @@
/*
* Copyright 2021 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.
*/
package org.pgpainless.decryption_verification;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import javax.annotation.Nullable;
import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.util.io.Streams;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.pgpainless.PGPainless;
import org.pgpainless.key.protection.CachingSecretKeyRingProtector;
import org.pgpainless.key.protection.SecretKeyRingProtector;
import org.pgpainless.key.protection.passphrase_provider.SecretKeyPassphraseProvider;
import org.pgpainless.util.Passphrase;
public class PostponeDecryptionUsingKeyWithMissingPassphraseTest {
private static PGPSecretKeyRing k1;
private static PGPSecretKeyRing k2;
private static final Passphrase p1 = Passphrase.fromPassword("P1");
private static final Passphrase p2 = Passphrase.fromPassword("P2");
private static final String PLAINTEXT = "Hello, World!\n";
// message is encrypted for both k1 and k2.
// The first PKESK is for k1, the second for k2
private static final String ENCRYPTED_FOR_K1_K2 = "-----BEGIN PGP MESSAGE-----\n" +
"Version: PGPainless\n" +
"\n" +
"hF4Dp8eMx2kPzEYSAQdAk0P2LL3pqZdq46eAGFkkESamDoPTn0EOLuPP+iA8lx8w\n" +
"RAMb6mUxPDVGqoXt05h2ps4BOTpy+Utsli0+BUzXTvtGM6RDTkaCuZvHQwPsggnN\n" +
"hF4DENqQkAsc7GgSAQdAJHwMR6+P5+HxwF8RqBEfrMCr0ZXWaLbekXf+FGTf/HYw\n" +
"+Et5NgaJazx0BdCf+D11Q4Vvem4Z9UEFL7x89B4mnv1dkJWRNwH6CkCNYVyIVrHi\n" +
"0kABB8V6DKCC1PNYlwCbSARz6X+xS9NsTFjGyROXajVEQ3x3ecLyKnyKxpcCJ2cb\n" +
"lfnLZ5ezQoyoukRkcdul1CWf\n" +
"=pvaA\n" +
"-----END PGP MESSAGE-----";
private static final String ENCRYPTED_FOR_K2_PASS_K1 = "-----BEGIN PGP MESSAGE-----\n" +
"Version: PGPainless\n" +
"\n" +
"hF4DENqQkAsc7GgSAQdAqtuQIjsRLypFfT8UykXqOv0dnrZWcrZBEiek4DNufmsw\n" +
"zRgbpnyKme7LaM+Lu0yJk9wUsvdpypB5GrKY9cD1Hg5nx4bGyujC6olowa/8o6Xe\n" +
"jC4ECQMCrjrXCpFawJtgj0y9PpciV6TpHJtI+lGbMed1+c5u3+U/HpRjLl3wBv9C\n" +
"hF4Dp8eMx2kPzEYSAQdA+Qrv5R4hOnOuVHDJpCCW72ONcdnzEhw45MxT/7mp3nQw\n" +
"8xs3dyVjMwmvqhbce9LIRdEM5YBWj3nBQM5ZQURAaQHPTTFuqCd8AgbeUz5FOFrA\n" +
"0kABJpvij5utFmhTVDqm3TrWOAmZ/eba0GMg0g/vFh7HoEGr1gRHLpc+vaIMs+fF\n" +
"uXVb1J9NX60PiBqxnM2iIBtD\n" +
"=p8Ye\n" +
"-----END PGP MESSAGE-----";
private static final Passphrase PASSPHRASE = Passphrase.fromPassword("Wow!");
@BeforeAll
public static void prepareKeys() throws IOException {
k1 = PGPainless.readKeyRing().secretKeyRing("-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
"Version: PGPainless\n" +
"Comment: 9D0D 40DD 5B0A B5C7 9E73 E847 71BD 67EB 18A5 1034\n" +
"Comment: K1\n" +
"\n" +
"lIYEYUH25xYJKwYBBAHaRw8BAQdAfnFMBZxpsZiJ0yheGIzWEQixVWexv3oxBpUS\n" +
"kboJPIP+CQMCBjB6dP815OFgNjItEDhZVpGgZfHd9eqdNGj7RRiz7QN6Egk4kpGF\n" +
"Mqd0wZ8Ey4vmiYaeSP7QT+Wf9EccHOR4D8XD+y//Pu5aJx1X7gmVvLQCSzGIeAQT\n" +
"FgoAIAUCYUH25wIbAQUWAgMBAAQLCQgHBRUKCQgLAh4BAhkBAAoJEHG9Z+sYpRA0\n" +
"OqkA/il0Tw+95YKXK5oPgqoHTzR5zaRyjmZ3r8Pjp5S+gCZYAP0RMmleSMVxkf+o\n" +
"4FBKwE+Vv41GPYKBUQ2op/mCOyc3CpyLBGFB9ucSCisGAQQBl1UBBQEBB0C2DoDx\n" +
"UjTXA/vFikJr64fB8qcCMyBx5ODBwBG9woSvLAMBCAf+CQMCBjB6dP815OFg8JuS\n" +
"6Z6j+M+7X8QNhZtHohmGbbWntREzAAVlN+UEmLljpcKdZKqlPgGoacw2ta/928FR\n" +
"6GD7tjyAPzSRTqPo6+pwBjU4/4h1BBgWCgAdBQJhQfbnAhsMBRYCAwEABAsJCAcF\n" +
"FQoJCAsCHgEACgkQcb1n6xilEDReNgD+L+B9YfbIPGd4NnOvt+9qrrzmRPXbhTu7\n" +
"9Vw0VmW7YfcBANH+0tH7HYbL5NOzGI888E28V0VhHqhhvtlctI574qAInIYEYUH2\n" +
"5xYJKwYBBAHaRw8BAQdARWEfFJZIKcsMrb/A3/AwFgwTLqMmoK6XTuTUfuqxZCb+\n" +
"CQMCBjB6dP815OFgHXyV5OYmG3BDr8xnw8boGZEdZRQARrbmYLCBEblH8X7X/jJy\n" +
"/SdBnsKed/dVItHAENVBjkbFXx7V8z7jqmZAEDSFR7R6o4jVBBgWCgB9BQJhQfbn\n" +
"AhsCBRYCAwEABAsJCAcFFQoJCAsCHgFfIAQZFgoABgUCYUH25wAKCRD9CYoy8Jjb\n" +
"qYXCAP487XkaTSeqHiygM9x5jKJQzBTNoa8LP5kmhk/qiRMKWAEAnEOvrTRMS9OL\n" +
"qLPQDJ5Zl4fwjXDC4MDEstxkwEkUXQEACgkQcb1n6xilEDTK+QD6AwFVz+NguD9k\n" +
"MElK0o9VDLUWheP9tXE/sHcCVXKrm4kA/2TK8puF9FKpBb3pJhsvLfFuklVlXEBv\n" +
"/lv8PRbqIHsN\n" +
"=PETI\n" +
"-----END PGP PRIVATE KEY BLOCK-----");
k2 = PGPainless.readKeyRing().secretKeyRing("-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
"Version: PGPainless\n" +
"Comment: 1458 6C84 3082 7226 5F4A 1EAC 15C9 772F 51A3 F48A\n" +
"Comment: K2\n" +
"\n" +
"lIYEYUH25xYJKwYBBAHaRw8BAQdAQHpL7nSEOpOdEVcmNxTsjJmqPYI7ObVGZqCi\n" +
"snlK8XP+CQMCySs/5txmbAtgB6fPvXfs7I0bYIEcGNZqSPMqVU04EjLyvmeP2EZL\n" +
"L5ezq3U4Z835xEILFN5ngBxajMEu1A0pksiabHTR28RspoBDph+4/bQCSzKIeAQT\n" +
"FgoAIAUCYUH25wIbAQUWAgMBAAQLCQgHBRUKCQgLAh4BAhkBAAoJEBXJdy9Ro/SK\n" +
"vyQBALXaK7xt/JbIE4jqhWbliIHm8bskX3WG+jME5XjfDjBGAQC8hcKiWbOAF1tK\n" +
"8KH2mzeHsh0yhybUvlq6wq7GZ3aZCZyLBGFB9ucSCisGAQQBl1UBBQEBB0CDCUwj\n" +
"XBrIL5xf7TDKNOCyXgepXp+Ca3q2q0qmWm1nYwMBCAf+CQMCySs/5txmbAtg0/tL\n" +
"Rw8WbfHVGS3u+aEuookij7swVMTspPY/s1W3Mt1TP85lM1Bkn5fDr4UP9prEQNc7\n" +
"/fWsqvc1b9ZRBBqmwPOsKDfd3oh1BBgWCgAdBQJhQfbnAhsMBRYCAwEABAsJCAcF\n" +
"FQoJCAsCHgEACgkQFcl3L1Gj9IoDBAD/YNTgbTvgM6UsqJ1DFiaihR1kV3nv2fuc\n" +
"EAJfu7guvbsA/0gnPBxywJd4cK7spoAZjyjdgN8RPcZcUo6vXbMnT4YHnIYEYUH2\n" +
"5xYJKwYBBAHaRw8BAQdApegYPw86Q19XMX1M5YykP51E27ZvwBIMc1bORa7xAFv+\n" +
"CQMCySs/5txmbAtgFrYkIkpujELJEpD1hJlFSZzIxiA193PXfdo9CbFHBkjwIBh7\n" +
"idT7l1gA+eHhiC0QyEPt3un3P4gj4UMeBPtCwqTUxo887IjVBBgWCgB9BQJhQfbn\n" +
"AhsCBRYCAwEABAsJCAcFFQoJCAsCHgFfIAQZFgoABgUCYUH25wAKCRBQkr/WCypZ\n" +
"Xp2zAP43zOQPtlbM1cabvP8kaWEsYG/x9ka4GtT/vkFh2cg3NAD/aSi13QhFHIVq\n" +
"FI+3tH0vnxFAWmU9u7JnvM2+3ULHDA0ACgkQFcl3L1Gj9IqeqQEAx/2y5PMGl7t4\n" +
"oHOJ4zhtqzTo33qjbu05eneS+zp4ElYA/RP/IGjIVz9wzraOKzBptB1BOaiqu3JG\n" +
"xnMR9GND5bgA\n" +
"=Sknt\n" +
"-----END PGP PRIVATE KEY BLOCK-----\n");
}
@Test
public void missingPassphraseFirst() throws PGPException, IOException {
SecretKeyRingProtector protector1 = new CachingSecretKeyRingProtector(new SecretKeyPassphraseProvider() {
@Nullable
@Override
public Passphrase getPassphraseFor(Long keyId) {
fail("Although the first PKESK is for k1, we should have skipped it and tried k2 first, which has passphrase available.");
return null;
}
@Override
public boolean hasPassphrase(Long keyId) {
return false;
}
});
SecretKeyRingProtector protector2 = SecretKeyRingProtector.unlockAllKeysWith(p2, k2);
DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(new ByteArrayInputStream(ENCRYPTED_FOR_K1_K2.getBytes(StandardCharsets.UTF_8)))
.withOptions(new ConsumerOptions()
.addDecryptionKey(k1, protector1)
.addDecryptionKey(k2, protector2));
ByteArrayOutputStream out = new ByteArrayOutputStream();
Streams.pipeAll(decryptionStream, out);
decryptionStream.close();
assertEquals(PLAINTEXT, out.toString());
}
@Test
public void missingPassphraseSecond() throws PGPException, IOException {
SecretKeyRingProtector protector1 = SecretKeyRingProtector.unlockAllKeysWith(p1, k1);
SecretKeyRingProtector protector2 = new CachingSecretKeyRingProtector(new SecretKeyPassphraseProvider() {
@Nullable
@Override
public Passphrase getPassphraseFor(Long keyId) {
fail("This callback should not get called, since the first PKESK is for k1, which has a passphrase available.");
return null;
}
@Override
public boolean hasPassphrase(Long keyId) {
return false;
}
});
DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(new ByteArrayInputStream(ENCRYPTED_FOR_K1_K2.getBytes(StandardCharsets.UTF_8)))
.withOptions(new ConsumerOptions()
.addDecryptionKey(k1, protector1)
.addDecryptionKey(k2, protector2));
ByteArrayOutputStream out = new ByteArrayOutputStream();
Streams.pipeAll(decryptionStream, out);
decryptionStream.close();
assertEquals(PLAINTEXT, out.toString());
}
@Test
public void messagePassphraseFirst() throws PGPException, IOException {
SecretKeyPassphraseProvider provider = new SecretKeyPassphraseProvider() {
@Nullable
@Override
public Passphrase getPassphraseFor(Long keyId) {
fail("Since we provide a decryption passphrase, we should not try to decrypt any key.");
return null;
}
@Override
public boolean hasPassphrase(Long keyId) {
return false;
}
};
SecretKeyRingProtector protector = new CachingSecretKeyRingProtector(provider);
DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(new ByteArrayInputStream(ENCRYPTED_FOR_K2_PASS_K1.getBytes(StandardCharsets.UTF_8)))
.withOptions(new ConsumerOptions()
.addDecryptionPassphrase(PASSPHRASE)
.addDecryptionKey(k1, protector)
.addDecryptionKey(k2, protector));
ByteArrayOutputStream out = new ByteArrayOutputStream();
Streams.pipeAll(decryptionStream, out);
decryptionStream.close();
assertEquals(PLAINTEXT, out.toString());
}
}

5
pgpainless-core/src/test/java/org/pgpainless/key/protection/CachingSecretKeyRingProtectorTest.java
View File

@ -46,6 +46,11 @@ public class CachingSecretKeyRingProtectorTest {
long doubled = keyId * 2;
return Passphrase.fromPassword(Long.toString(doubled));
}
@Override
public boolean hasPassphrase(Long keyId) {
return true;
}
};
private CachingSecretKeyRingProtector protector;

5
pgpainless-core/src/test/java/org/pgpainless/key/protection/PassphraseProtectedKeyTest.java
View File

@ -49,6 +49,11 @@ public class PassphraseProtectedKeyTest {
return null;
}
}
@Override
public boolean hasPassphrase(Long keyId) {
return keyId.equals(TestKeys.CRYPTIE_KEY_ID);
}
});
@Test

5
pgpainless-core/src/test/java/org/pgpainless/key/protection/SecretKeyRingProtectorTest.java
View File

@ -121,6 +121,11 @@ public class SecretKeyRingProtectorTest {
public Passphrase getPassphraseFor(Long keyId) {
return Passphrase.fromPassword("missingP455w0rd");
}
@Override
public boolean hasPassphrase(Long keyId) {
return true;
}
});
assertEquals(Passphrase.emptyPassphrase(), protector.getPassphraseFor(1L));