PGPainless/pgpainless
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Code Issues Releases Wiki Activity

Make readSignatures skip over compressed data packets without decompression.

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This commit is contained in:
Paul Schaub 2022-05-08 11:24:34 +02:00
parent 08ec140b63
commit 12e62d381c
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
2 changed files with 23 additions and 0 deletions
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7
pgpainless-core/src/main/java/org/pgpainless/signature/SignatureUtils.java
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@ -17,6 +17,7 @@ import org.bouncycastle.bcpg.sig.IssuerKeyID;
import org.bouncycastle.bcpg.sig.KeyExpirationTime;
import org.bouncycastle.bcpg.sig.RevocationReason;
import org.bouncycastle.bcpg.sig.SignatureExpirationTime;
import org.bouncycastle.openpgp.PGPCompressedData;
import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPObjectFactory;
import org.bouncycastle.openpgp.PGPPublicKey;
@ -26,6 +27,7 @@ import org.bouncycastle.openpgp.PGPSignatureGenerator;
import org.bouncycastle.openpgp.PGPSignatureList;
import org.bouncycastle.openpgp.operator.PGPContentSignerBuilder;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.io.Streams;
import org.pgpainless.PGPainless;
import org.pgpainless.algorithm.HashAlgorithm;
import org.pgpainless.algorithm.SignatureType;
@ -247,6 +249,11 @@ public final class SignatureUtils {
int i = 0;
Object nextObject;
while (i++ < maxIterations && (nextObject = objectFactory.nextObject()) != null) {
if (nextObject instanceof PGPCompressedData) {
PGPCompressedData compressedData = (PGPCompressedData) nextObject;
Streams.drain(compressedData.getInputStream()); // Skip packet without decompressing
}
if (nextObject instanceof PGPSignatureList) {
PGPSignatureList signatureList = (PGPSignatureList) nextObject;
for (PGPSignature s : signatureList) {