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Code Issues Releases Wiki Activity

Cleartext Signaure Framework: Support for multiple Hash: headers

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This commit is contained in:
Paul Schaub 2022-11-21 15:04:52 +01:00
parent a19fc9ebda
commit e4560ac5b5
1 changed files with 24 additions and 3 deletions
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27
pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionStream.java
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@ -8,7 +8,10 @@ import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.annotation.Nonnull;
import org.bouncycastle.bcpg.ArmoredOutputStream;
@ -22,6 +25,7 @@ import org.bouncycastle.openpgp.PGPSignatureGenerator;
import org.bouncycastle.openpgp.operator.PGPDataEncryptorBuilder;
import org.bouncycastle.openpgp.operator.PGPKeyEncryptionMethodGenerator;
import org.pgpainless.algorithm.CompressionAlgorithm;
import org.pgpainless.algorithm.HashAlgorithm;
import org.pgpainless.algorithm.StreamEncoding;
import org.pgpainless.algorithm.SymmetricKeyAlgorithm;
import org.pgpainless.implementation.ImplementationFactory;
@ -165,9 +169,8 @@ public final class EncryptionStream extends OutputStream {
private void prepareLiteralDataProcessing() throws IOException {
if (options.isCleartextSigned()) {
// Begin cleartext with hash algorithm of first signing method
SigningOptions.SigningMethod firstMethod = options.getSigningOptions().getSigningMethods().values().iterator().next();
armorOutputStream.beginClearText(firstMethod.getHashAlgorithm().getAlgorithmId());
int[] algorithmIds = collectHashAlgorithmsForCleartextSigning();
armorOutputStream.beginClearText(algorithmIds);
return;
}
@ -195,6 +198,24 @@ public final class EncryptionStream extends OutputStream {
outermostStream = crlfGeneratorStream;
}
private int[] collectHashAlgorithmsForCleartextSigning() {
SigningOptions signOpts = options.getSigningOptions();
Set<HashAlgorithm> hashAlgorithms = new HashSet<>();
if (signOpts != null) {
for (SigningOptions.SigningMethod method : signOpts.getSigningMethods().values()) {
hashAlgorithms.add(method.getHashAlgorithm());
}
}
int[] algorithmIds = new int[hashAlgorithms.size()];
Iterator<HashAlgorithm> iterator = hashAlgorithms.iterator();
for (int i = 0; i < algorithmIds.length; i++) {
algorithmIds[i] = iterator.next().getAlgorithmId();
}
return algorithmIds;
}
@Override
public void write(int data) throws IOException {
outermostStream.write(data);