mirror of
https://github.com/pgpainless/pgpainless.git
synced 2024-11-18 02:12:06 +01:00
SIGNATURE VERIFICATION IN OPENPGP SUCKS BIG TIME
This commit is contained in:
parent
4e44691ef6
commit
ec28ba2924
2 changed files with 128 additions and 92 deletions
|
|
@ -48,6 +48,7 @@ import org.pgpainless.key.info.KeyRingInfo;
|
|||
import org.pgpainless.key.protection.SecretKeyRingProtector;
|
||||
import org.pgpainless.key.protection.UnlockSecretKey;
|
||||
import org.pgpainless.signature.SignatureUtils;
|
||||
import org.pgpainless.util.ArmorUtils;
|
||||
import org.pgpainless.util.Passphrase;
|
||||
import org.pgpainless.util.Tuple;
|
||||
import org.slf4j.Logger;
|
||||
|
|
@ -138,19 +139,25 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
// Literal Data - the literal data content is the new input stream
|
||||
case LIT:
|
||||
automaton.next(InputAlphabet.LiteralData);
|
||||
signatures.commitNested();
|
||||
processLiteralData();
|
||||
break loop;
|
||||
|
||||
// Compressed Data - the content contains another OpenPGP message
|
||||
case COMP:
|
||||
automaton.next(InputAlphabet.CompressedData);
|
||||
signatures.commitNested();
|
||||
processCompressedData();
|
||||
break loop;
|
||||
|
||||
// One Pass Signature
|
||||
case OPS:
|
||||
automaton.next(InputAlphabet.OnePassSignatures);
|
||||
signatures.addOnePassSignature(readOnePassSignature());
|
||||
// signatures.addOnePassSignature(readOnePassSignature());
|
||||
PGPOnePassSignatureList onePassSignatureList = readOnePassSignatures();
|
||||
for (PGPOnePassSignature ops : onePassSignatureList) {
|
||||
signatures.addOnePassSignature(ops);
|
||||
}
|
||||
// signatures.addOnePassSignatures(readOnePassSignatures());
|
||||
break;
|
||||
|
||||
|
|
@ -158,12 +165,15 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
case SIG:
|
||||
boolean isSigForOPS = automaton.peekStack() == StackAlphabet.ops;
|
||||
automaton.next(InputAlphabet.Signatures);
|
||||
PGPSignature signature = readSignature();
|
||||
processSignature(signature, isSigForOPS);
|
||||
/*
|
||||
|
||||
// PGPSignature signature = readSignature();
|
||||
// processSignature(signature, isSigForOPS);
|
||||
|
||||
PGPSignatureList signatureList = readSignatures();
|
||||
processSignatures(signatureList, isSigForOPS);
|
||||
*/
|
||||
for (PGPSignature signature : signatureList) {
|
||||
processSignature(signature, isSigForOPS);
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
// Encrypted Data (ESKs and SED/SEIPD are parsed the same by BC)
|
||||
|
|
@ -178,7 +188,7 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
|
||||
throw new MissingDecryptionMethodException("No working decryption method found.");
|
||||
|
||||
// Marker Packets need to be skipped and ignored
|
||||
// Marker Packets need to be skipped and ignored
|
||||
case MARKER:
|
||||
packetInputStream.readPacket(); // skip
|
||||
break;
|
||||
|
|
@ -193,8 +203,8 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
case UATTR:
|
||||
throw new MalformedOpenPgpMessageException("Illegal Packet in Stream: " + nextPacket);
|
||||
|
||||
// MDC packet is usually processed by PGPEncryptedDataList, so it is very likely we encounter this
|
||||
// packet out of order
|
||||
// MDC packet is usually processed by PGPEncryptedDataList, so it is very likely we encounter this
|
||||
// packet out of order
|
||||
case MDC:
|
||||
throw new MalformedOpenPgpMessageException("Unexpected Packet in Stream: " + nextPacket);
|
||||
|
||||
|
|
@ -210,20 +220,12 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
|
||||
private void processSignature(PGPSignature signature, boolean isSigForOPS) {
|
||||
if (isSigForOPS) {
|
||||
signatures.addOnePassCorrespondingSignature(signature);
|
||||
signatures.addCorrespondingOnePassSignature(signature);
|
||||
} else {
|
||||
signatures.addPrependedSignature(signature);
|
||||
}
|
||||
}
|
||||
|
||||
private void processSignatures(PGPSignatureList signatureList, boolean isSigForOPS) throws IOException {
|
||||
if (isSigForOPS) {
|
||||
signatures.addOnePassCorrespondingSignatures(signatureList);
|
||||
} else {
|
||||
signatures.addPrependedSignatures(signatureList);
|
||||
}
|
||||
}
|
||||
|
||||
private void processCompressedData() throws IOException, PGPException {
|
||||
PGPCompressedData compressedData = new PGPCompressedData(packetInputStream);
|
||||
MessageMetadata.CompressedData compressionLayer = new MessageMetadata.CompressedData(
|
||||
|
|
@ -380,16 +382,17 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
|
||||
private PGPOnePassSignature readOnePassSignature()
|
||||
throws PGPException, IOException {
|
||||
return new PGPOnePassSignature(packetInputStream);
|
||||
//return new PGPOnePassSignature(packetInputStream);
|
||||
return null;
|
||||
}
|
||||
|
||||
private PGPSignature readSignature()
|
||||
throws PGPException, IOException {
|
||||
return new PGPSignature(packetInputStream);
|
||||
//return new PGPSignature(packetInputStream);
|
||||
return null;
|
||||
}
|
||||
|
||||
private PGPOnePassSignatureListWrapper readOnePassSignatures() throws IOException {
|
||||
List<Boolean> encapsulating = new ArrayList<>();
|
||||
private PGPOnePassSignatureList readOnePassSignatures() throws IOException {
|
||||
ByteArrayOutputStream buf = new ByteArrayOutputStream();
|
||||
BCPGOutputStream bcpgOut = new BCPGOutputStream(buf);
|
||||
int tag;
|
||||
|
|
@ -398,7 +401,6 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
if (tag == PacketTags.ONE_PASS_SIGNATURE) {
|
||||
OnePassSignaturePacket sigPacket = (OnePassSignaturePacket) packet;
|
||||
byte[] bytes = sigPacket.getEncoded();
|
||||
encapsulating.add(bytes[bytes.length - 1] == 1);
|
||||
bcpgOut.write(bytes);
|
||||
}
|
||||
}
|
||||
|
|
@ -406,7 +408,7 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
|
||||
PGPObjectFactory objectFactory = ImplementationFactory.getInstance().getPGPObjectFactory(buf.toByteArray());
|
||||
PGPOnePassSignatureList signatureList = (PGPOnePassSignatureList) objectFactory.nextObject();
|
||||
return new PGPOnePassSignatureListWrapper(signatureList, encapsulating);
|
||||
return signatureList;
|
||||
}
|
||||
|
||||
private PGPSignatureList readSignatures() throws IOException {
|
||||
|
|
@ -449,6 +451,7 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
nestedInputStream.close();
|
||||
collectMetadata();
|
||||
nestedInputStream = null;
|
||||
signatures.popNested();
|
||||
|
||||
try {
|
||||
consumePackets();
|
||||
|
|
@ -474,6 +477,7 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
nestedInputStream.close();
|
||||
collectMetadata();
|
||||
nestedInputStream = null;
|
||||
signatures.popNested();
|
||||
|
||||
try {
|
||||
consumePackets();
|
||||
|
|
@ -556,41 +560,29 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Workaround for BC not exposing, whether an OPS is encapsulating or not.
|
||||
* TODO: Remove once our PR is merged
|
||||
*
|
||||
* @see <a href="https://github.com/bcgit/bc-java/pull/1232">PR against BC</a>
|
||||
*/
|
||||
private static class PGPOnePassSignatureListWrapper {
|
||||
private final PGPOnePassSignatureList list;
|
||||
private final List<Boolean> encapsulating;
|
||||
|
||||
PGPOnePassSignatureListWrapper(PGPOnePassSignatureList signatures, List<Boolean> encapsulating) {
|
||||
this.list = signatures;
|
||||
this.encapsulating = encapsulating;
|
||||
}
|
||||
|
||||
public int size() {
|
||||
return list.size();
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: In 'OPS LIT("Foo") SIG', OPS is only updated with "Foo"
|
||||
// In 'OPS[1] OPS LIT("Foo") SIG SIG', OPS[1] (nested) is updated with OPS LIT("Foo") SIG.
|
||||
// Therefore, we need to handle the innermost signature layer differently when updating with Literal data.
|
||||
// For this we might want to provide two update entries into the Signatures class, one for OpenPGP packets and one
|
||||
// for literal data. UUUUUGLY!!!!
|
||||
private static final class Signatures extends OutputStream {
|
||||
final ConsumerOptions options;
|
||||
final List<PGPSignature> detachedSignatures;
|
||||
final List<PGPSignature> prependedSignatures;
|
||||
final Stack<List<PGPOnePassSignature>> onePassSignatures;
|
||||
final List<PGPOnePassSignature> onePassSignatures;
|
||||
final Stack<List<PGPOnePassSignature>> opsUpdateStack;
|
||||
final List<PGPSignature> correspondingSignatures;
|
||||
|
||||
boolean lastOpsIsContaining = true;
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
|
||||
List<PGPOnePassSignature> opsCurrentNesting = new ArrayList<>();
|
||||
|
||||
private Signatures(ConsumerOptions options) {
|
||||
this.options = options;
|
||||
this.detachedSignatures = new ArrayList<>();
|
||||
this.prependedSignatures = new ArrayList<>();
|
||||
this.onePassSignatures = new Stack<>();
|
||||
onePassSignatures.push(new ArrayList<>());
|
||||
this.onePassSignatures = new ArrayList<>();
|
||||
this.opsUpdateStack = new Stack<>();
|
||||
this.correspondingSignatures = new ArrayList<>();
|
||||
}
|
||||
|
||||
|
|
@ -607,12 +599,6 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
this.detachedSignatures.add(signature);
|
||||
}
|
||||
|
||||
void addPrependedSignatures(PGPSignatureList signatures) {
|
||||
for (PGPSignature signature : signatures) {
|
||||
addPrependedSignature(signature);
|
||||
}
|
||||
}
|
||||
|
||||
void addPrependedSignature(PGPSignature signature) {
|
||||
long keyId = SignatureUtils.determineIssuerKeyId(signature);
|
||||
PGPPublicKeyRing certificate = findCertificate(keyId);
|
||||
|
|
@ -621,27 +607,61 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
}
|
||||
|
||||
void addOnePassSignature(PGPOnePassSignature signature) {
|
||||
List<PGPOnePassSignature> list;
|
||||
if (lastOpsIsContaining) {
|
||||
list = new ArrayList<>();
|
||||
onePassSignatures.add(list);
|
||||
} else {
|
||||
list = onePassSignatures.get(onePassSignatures.size() - 1);
|
||||
}
|
||||
|
||||
PGPPublicKeyRing certificate = findCertificate(signature.getKeyID());
|
||||
initialize(signature, certificate);
|
||||
list.add(signature);
|
||||
onePassSignatures.add(signature);
|
||||
|
||||
// lastOpsIsContaining = signature.isContaining();
|
||||
opsCurrentNesting.add(signature);
|
||||
if (isContaining(signature)) {
|
||||
commitNested();
|
||||
}
|
||||
}
|
||||
|
||||
void addOnePassCorrespondingSignatures(PGPSignatureList signatures) {
|
||||
for (PGPSignature signature : signatures) {
|
||||
correspondingSignatures.add(signature);
|
||||
boolean isContaining(PGPOnePassSignature ops) {
|
||||
try {
|
||||
byte[] bytes = ops.getEncoded();
|
||||
return bytes[bytes.length - 1] == 1;
|
||||
} catch (IOException e) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
void addCorrespondingOnePassSignature(PGPSignature signature) {
|
||||
for (PGPOnePassSignature onePassSignature : onePassSignatures) {
|
||||
if (onePassSignature.getKeyID() != signature.getKeyID()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
boolean verified = false;
|
||||
try {
|
||||
verified = onePassSignature.verify(signature);
|
||||
} catch (PGPException e) {
|
||||
log("Cannot verify OPS signature.", e);
|
||||
}
|
||||
log("One-Pass-Signature by " + Long.toHexString(onePassSignature.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
try {
|
||||
log(ArmorUtils.toAsciiArmoredString(out.toByteArray()));
|
||||
} catch (IOException e) {
|
||||
throw new RuntimeException(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void commitNested() {
|
||||
if (opsCurrentNesting.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
|
||||
log("Committing " + opsCurrentNesting.size() + " OPS sigs for updating");
|
||||
opsUpdateStack.push(opsCurrentNesting);
|
||||
opsCurrentNesting = new ArrayList<>();
|
||||
}
|
||||
|
||||
void popNested() {
|
||||
log("Popping nested");
|
||||
opsUpdateStack.pop();
|
||||
}
|
||||
|
||||
private void initialize(PGPSignature signature, PGPPublicKeyRing certificate, long keyId) {
|
||||
if (certificate == null) {
|
||||
// SHIT
|
||||
|
|
@ -680,14 +700,21 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
}
|
||||
|
||||
public void update(byte b) {
|
||||
if (!opsUpdateStack.isEmpty()) {
|
||||
log("Update");
|
||||
out.write(b);
|
||||
}
|
||||
|
||||
for (PGPSignature prepended : prependedSignatures) {
|
||||
prepended.update(b);
|
||||
}
|
||||
for (List<PGPOnePassSignature> opss : onePassSignatures) {
|
||||
|
||||
for (List<PGPOnePassSignature> opss : opsUpdateStack) {
|
||||
for (PGPOnePassSignature ops : opss) {
|
||||
ops.update(b);
|
||||
}
|
||||
}
|
||||
|
||||
for (PGPSignature detached : detachedSignatures) {
|
||||
detached.update(b);
|
||||
}
|
||||
|
|
@ -699,9 +726,9 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
try {
|
||||
verified = detached.verify();
|
||||
} catch (PGPException e) {
|
||||
LOGGER.debug("Cannot verify detached signature.", e);
|
||||
log("Cannot verify detached signature.", e);
|
||||
}
|
||||
LOGGER.debug("Detached Signature by " + Long.toHexString(detached.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
log("Detached Signature by " + Long.toHexString(detached.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
}
|
||||
|
||||
for (PGPSignature prepended : prependedSignatures) {
|
||||
|
|
@ -709,22 +736,9 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
try {
|
||||
verified = prepended.verify();
|
||||
} catch (PGPException e) {
|
||||
LOGGER.debug("Cannot verify prepended signature.", e);
|
||||
log("Cannot verify prepended signature.", e);
|
||||
}
|
||||
LOGGER.debug("Prepended Signature by " + Long.toHexString(prepended.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
}
|
||||
|
||||
|
||||
for (int i = 0; i < onePassSignatures.size(); i++) {
|
||||
PGPOnePassSignature ops = onePassSignatures.get(i);
|
||||
PGPSignature signature = correspondingSignatures.get(correspondingSignatures.size() - i - 1);
|
||||
boolean verified = false;
|
||||
try {
|
||||
verified = ops.verify(signature);
|
||||
} catch (PGPException e) {
|
||||
LOGGER.debug("Cannot verify OPS signature.", e);
|
||||
}
|
||||
LOGGER.debug("One-Pass-Signature by " + Long.toHexString(ops.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
log("Prepended Signature by " + Long.toHexString(prepended.getKeyID()) + " is " + (verified ? "verified" : "unverified"));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -733,4 +747,18 @@ public class OpenPgpMessageInputStream extends InputStream {
|
|||
update((byte) b);
|
||||
}
|
||||
}
|
||||
|
||||
static void log(String message) {
|
||||
LOGGER.debug(message);
|
||||
// CHECKSTYLE:OFF
|
||||
System.out.println(message);
|
||||
// CHECKSTYLE:ON
|
||||
}
|
||||
|
||||
static void log(String message, Throwable e) {
|
||||
log(message);
|
||||
// CHECKSTYLE:OFF
|
||||
e.printStackTrace();
|
||||
// CHECKSTYLE:ON
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
|
|||
import static org.junit.jupiter.api.Assertions.assertFalse;
|
||||
import static org.junit.jupiter.api.Assertions.assertNull;
|
||||
import static org.junit.jupiter.api.Assertions.assertThrows;
|
||||
import static org.junit.jupiter.api.Assertions.assertTrue;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
|
|
@ -377,7 +378,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
|
||||
@ParameterizedTest(name = "Process SIG COMP(LIT) using {0}")
|
||||
@MethodSource("provideMessageProcessors")
|
||||
public void testProcessSIG_COMP_LIT(Processor processor) throws PGPException, IOException {
|
||||
public void testProcessSIG_COMP_LIT(Processor processor)
|
||||
throws PGPException, IOException {
|
||||
PGPPublicKeyRing cert = PGPainless.extractCertificate(
|
||||
PGPainless.readKeyRing().secretKeyRing(KEY));
|
||||
|
||||
|
|
@ -392,7 +394,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
|
||||
@ParameterizedTest(name = "Process SENC(LIT) using {0}")
|
||||
@MethodSource("provideMessageProcessors")
|
||||
public void testProcessSENC_LIT(Processor processor) throws PGPException, IOException {
|
||||
public void testProcessSENC_LIT(Processor processor)
|
||||
throws PGPException, IOException {
|
||||
Tuple<String, MessageMetadata> result = processor.process(SENC_LIT, ConsumerOptions.get()
|
||||
.addDecryptionPassphrase(Passphrase.fromPassword(PASSPHRASE)));
|
||||
String plain = result.getA();
|
||||
|
|
@ -404,7 +407,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
|
||||
@ParameterizedTest(name = "Process PENC(COMP(LIT)) using {0}")
|
||||
@MethodSource("provideMessageProcessors")
|
||||
public void testProcessPENC_COMP_LIT(Processor processor) throws IOException, PGPException {
|
||||
public void testProcessPENC_COMP_LIT(Processor processor)
|
||||
throws IOException, PGPException {
|
||||
PGPSecretKeyRing secretKeys = PGPainless.readKeyRing().secretKeyRing(KEY);
|
||||
Tuple<String, MessageMetadata> result = processor.process(PENC_COMP_LIT, ConsumerOptions.get()
|
||||
.addDecryptionKey(secretKeys));
|
||||
|
|
@ -417,7 +421,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
|
||||
@ParameterizedTest(name = "Process OPS LIT SIG using {0}")
|
||||
@MethodSource("provideMessageProcessors")
|
||||
public void testProcessOPS_LIT_SIG(Processor processor) throws IOException, PGPException {
|
||||
public void testProcessOPS_LIT_SIG(Processor processor)
|
||||
throws IOException, PGPException {
|
||||
PGPPublicKeyRing cert = PGPainless.extractCertificate(PGPainless.readKeyRing().secretKeyRing(KEY));
|
||||
Tuple<String, MessageMetadata> result = processor.process(OPS_LIT_SIG, ConsumerOptions.get()
|
||||
.addVerificationCert(cert));
|
||||
|
|
@ -428,7 +433,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
assertNull(metadata.getCompressionAlgorithm());
|
||||
}
|
||||
|
||||
private static Tuple<String, MessageMetadata> processReadBuffered(String armoredMessage, ConsumerOptions options) throws PGPException, IOException {
|
||||
private static Tuple<String, MessageMetadata> processReadBuffered(String armoredMessage, ConsumerOptions options)
|
||||
throws PGPException, IOException {
|
||||
OpenPgpMessageInputStream in = get(armoredMessage, options);
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
Streams.pipeAll(in, out);
|
||||
|
|
@ -437,7 +443,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
return new Tuple<>(out.toString(), metadata);
|
||||
}
|
||||
|
||||
private static Tuple<String, MessageMetadata> processReadSequential(String armoredMessage, ConsumerOptions options) throws PGPException, IOException {
|
||||
private static Tuple<String, MessageMetadata> processReadSequential(String armoredMessage, ConsumerOptions options)
|
||||
throws PGPException, IOException {
|
||||
OpenPgpMessageInputStream in = get(armoredMessage, options);
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
|
||||
|
|
@ -451,7 +458,8 @@ public class OpenPgpMessageInputStreamTest {
|
|||
return new Tuple<>(out.toString(), metadata);
|
||||
}
|
||||
|
||||
private static OpenPgpMessageInputStream get(String armored, ConsumerOptions options) throws IOException, PGPException {
|
||||
private static OpenPgpMessageInputStream get(String armored, ConsumerOptions options)
|
||||
throws IOException, PGPException {
|
||||
ByteArrayInputStream bytesIn = new ByteArrayInputStream(armored.getBytes(StandardCharsets.UTF_8));
|
||||
ArmoredInputStream armorIn = ArmoredInputStreamFactory.get(bytesIn);
|
||||
OpenPgpMessageInputStream pgpIn = new OpenPgpMessageInputStream(armorIn, options);
|
||||
|
|
|
|||
Loading…
Reference in a new issue