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Code Issues Releases Wiki Activity

Rename automaton package to syntax_check

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This commit is contained in:
Paul Schaub 2022-10-21 00:31:25 +02:00
parent 380dcf3f65
commit ef8eb2f55e
7 changed files with 28 additions and 27 deletions
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33
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/OpenPgpMessageInputStream.java
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@ -43,9 +43,9 @@ import org.pgpainless.algorithm.EncryptionPurpose;
import org.pgpainless.algorithm.OpenPgpPacket;
import org.pgpainless.algorithm.StreamEncoding;
import org.pgpainless.algorithm.SymmetricKeyAlgorithm;
import org.pgpainless.decryption_verification.automaton.InputAlphabet;
import org.pgpainless.decryption_verification.automaton.PDA;
import org.pgpainless.decryption_verification.automaton.StackAlphabet;
import org.pgpainless.decryption_verification.syntax_check.InputAlphabet;
import org.pgpainless.decryption_verification.syntax_check.PDA;
import org.pgpainless.decryption_verification.syntax_check.StackAlphabet;
import org.pgpainless.decryption_verification.cleartext_signatures.ClearsignedMessageUtil;
import org.pgpainless.decryption_verification.cleartext_signatures.MultiPassStrategy;
import org.pgpainless.exception.MalformedOpenPgpMessageException;
@ -80,7 +80,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
// Options to consume the data
protected final ConsumerOptions options;
// Pushdown Automaton to verify validity of OpenPGP packet sequence in an OpenPGP message
protected final PDA automaton = new PDA();
protected final PDA syntaxVerifier = new PDA();
// InputStream of OpenPGP packets
protected TeeBCPGInputStream packetInputStream;
// InputStream of a nested data packet
@ -266,7 +266,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
private void processLiteralData() throws IOException {
LOGGER.debug("Literal Data Packet at depth " + metadata.depth + " encountered");
automaton.next(InputAlphabet.LiteralData);
syntaxVerifier.next(InputAlphabet.LiteralData);
PGPLiteralData literalData = packetInputStream.readLiteralData();
this.metadata.setChild(new MessageMetadata.LiteralData(
literalData.getFileName(),
@ -276,7 +276,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
}
private void processCompressedData() throws IOException, PGPException {
automaton.next(InputAlphabet.CompressedData);
syntaxVerifier.next(InputAlphabet.CompressedData);
signatures.enterNesting();
PGPCompressedData compressedData = packetInputStream.readCompressedData();
MessageMetadata.CompressedData compressionLayer = new MessageMetadata.CompressedData(
@ -288,7 +288,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
}
private void processOnePassSignature() throws PGPException, IOException {
automaton.next(InputAlphabet.OnePassSignature);
syntaxVerifier.next(InputAlphabet.OnePassSignature);
PGPOnePassSignature onePassSignature = packetInputStream.readOnePassSignature();
LOGGER.debug("One-Pass-Signature Packet by key " + KeyIdUtil.formatKeyId(onePassSignature.getKeyID()) +
"at depth " + metadata.depth + " encountered");
@ -297,8 +297,8 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
private void processSignature() throws PGPException, IOException {
// true if Signature corresponds to OnePassSignature
boolean isSigForOPS = automaton.peekStack() == StackAlphabet.ops;
automaton.next(InputAlphabet.Signature);
boolean isSigForOPS = syntaxVerifier.peekStack() == StackAlphabet.ops;
syntaxVerifier.next(InputAlphabet.Signature);
PGPSignature signature = packetInputStream.readSignature();
long keyId = SignatureUtils.determineIssuerKeyId(signature);
if (isSigForOPS) {
@ -317,7 +317,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
private boolean processEncryptedData() throws IOException, PGPException {
LOGGER.debug("Symmetrically Encrypted Data Packet at depth " + metadata.depth + " encountered");
automaton.next(InputAlphabet.EncryptedData);
syntaxVerifier.next(InputAlphabet.EncryptedData);
PGPEncryptedDataList encDataList = packetInputStream.readEncryptedDataList();
// TODO: Replace with !encDataList.isIntegrityProtected()
@ -601,7 +601,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
@Override
public int read() throws IOException {
if (nestedInputStream == null) {
automaton.assertValid();
syntaxVerifier.assertValid();
return -1;
}
@ -638,7 +638,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
if (nestedInputStream == null) {
if (packetInputStream != null) {
automaton.assertValid();
syntaxVerifier.assertValid();
}
return -1;
}
@ -668,7 +668,7 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
super.close();
if (closed) {
if (packetInputStream != null) {
automaton.assertValid();
syntaxVerifier.assertValid();
}
return;
}
@ -686,8 +686,8 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
}
if (packetInputStream != null) {
automaton.next(InputAlphabet.EndOfSequence);
automaton.assertValid();
syntaxVerifier.next(InputAlphabet.EndOfSequence);
syntaxVerifier.assertValid();
packetInputStream.close();
}
closed = true;
@ -717,7 +717,8 @@ public class OpenPgpMessageInputStream extends DecryptionStream {
for (PGPEncryptedData esk : esks) {
if (esk instanceof PGPPBEEncryptedData) {
skesks.add((PGPPBEEncryptedData) esk);
} else if (esk instanceof PGPPublicKeyEncryptedData) {
}
else if (esk instanceof PGPPublicKeyEncryptedData) {
PGPPublicKeyEncryptedData pkesk = (PGPPublicKeyEncryptedData) esk;
if (pkesk.getKeyID() != 0) {
pkesks.add(pkesk);

2
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/automaton/InputAlphabet.java → pgpainless-core/src/main/java/org/pgpainless/decryption_verification/syntax_check/InputAlphabet.java
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@ -2,7 +2,7 @@
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification.automaton;
package org.pgpainless.decryption_verification.syntax_check;
import org.bouncycastle.openpgp.PGPCompressedData;
import org.bouncycastle.openpgp.PGPEncryptedDataList;

8
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/automaton/PDA.java → pgpainless-core/src/main/java/org/pgpainless/decryption_verification/syntax_check/PDA.java
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@ -2,7 +2,7 @@
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification.automaton;
package org.pgpainless.decryption_verification.syntax_check;
import org.pgpainless.exception.MalformedOpenPgpMessageException;
import org.slf4j.Logger;
@ -10,9 +10,9 @@ import org.slf4j.LoggerFactory;
import java.util.Stack;
import static org.pgpainless.decryption_verification.automaton.StackAlphabet.msg;
import static org.pgpainless.decryption_verification.automaton.StackAlphabet.ops;
import static org.pgpainless.decryption_verification.automaton.StackAlphabet.terminus;
import static org.pgpainless.decryption_verification.syntax_check.StackAlphabet.msg;
import static org.pgpainless.decryption_verification.syntax_check.StackAlphabet.ops;
import static org.pgpainless.decryption_verification.syntax_check.StackAlphabet.terminus;
public class PDA {

2
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/automaton/StackAlphabet.java → pgpainless-core/src/main/java/org/pgpainless/decryption_verification/syntax_check/StackAlphabet.java
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@ -2,7 +2,7 @@
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.decryption_verification.automaton;
package org.pgpainless.decryption_verification.syntax_check;
public enum StackAlphabet {
/**

2
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/automaton/package-info.java → pgpainless-core/src/main/java/org/pgpainless/decryption_verification/syntax_check/package-info.java
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@ -5,4 +5,4 @@
/**
* Pushdown Automaton to verify validity of packet sequences according to the OpenPGP Message format.
*/
package org.pgpainless.decryption_verification.automaton;
package org.pgpainless.decryption_verification.syntax_check;

6
pgpainless-core/src/main/java/org/pgpainless/exception/MalformedOpenPgpMessageException.java
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@ -4,9 +4,9 @@
package org.pgpainless.exception;
import org.pgpainless.decryption_verification.automaton.InputAlphabet;
import org.pgpainless.decryption_verification.automaton.PDA;
import org.pgpainless.decryption_verification.automaton.StackAlphabet;
import org.pgpainless.decryption_verification.syntax_check.InputAlphabet;
import org.pgpainless.decryption_verification.syntax_check.PDA;
import org.pgpainless.decryption_verification.syntax_check.StackAlphabet;
/**
* Exception that gets thrown if the OpenPGP message is malformed.

2
pgpainless-core/src/test/java/org/pgpainless/decryption_verification/automaton/PDATest.java → pgpainless-core/src/test/java/org/pgpainless/decryption_verification/syntax_check/PDATest.java
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@ -1,4 +1,4 @@
package org.pgpainless.decryption_verification.automaton;
package org.pgpainless.decryption_verification.syntax_check;
import org.junit.jupiter.api.Test;
import org.pgpainless.exception.MalformedOpenPgpMessageException;