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Kotlin conversion: SignatureSubpacketsHelper

This commit is contained in:
Paul Schaub 2023-10-20 14:55:51 +02:00
parent 0effc84fac
commit b72f95b46c
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
4 changed files with 161 additions and 210 deletions

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@ -1,196 +0,0 @@
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.signature.subpackets;
import org.bouncycastle.bcpg.SignatureSubpacket;
import org.bouncycastle.bcpg.sig.EmbeddedSignature;
import org.bouncycastle.bcpg.sig.Exportable;
import org.bouncycastle.bcpg.sig.Features;
import org.bouncycastle.bcpg.sig.IntendedRecipientFingerprint;
import org.bouncycastle.bcpg.sig.KeyExpirationTime;
import org.bouncycastle.bcpg.sig.KeyFlags;
import org.bouncycastle.bcpg.sig.NotationData;
import org.bouncycastle.bcpg.sig.PolicyURI;
import org.bouncycastle.bcpg.sig.PreferredAlgorithms;
import org.bouncycastle.bcpg.sig.PrimaryUserID;
import org.bouncycastle.bcpg.sig.RegularExpression;
import org.bouncycastle.bcpg.sig.Revocable;
import org.bouncycastle.bcpg.sig.RevocationKey;
import org.bouncycastle.bcpg.sig.RevocationReason;
import org.bouncycastle.bcpg.sig.SignatureExpirationTime;
import org.bouncycastle.bcpg.sig.SignatureTarget;
import org.bouncycastle.bcpg.sig.SignerUserID;
import org.bouncycastle.bcpg.sig.TrustSignature;
import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator;
import org.bouncycastle.openpgp.PGPSignatureSubpacketVector;
import org.pgpainless.algorithm.Feature;
import org.pgpainless.algorithm.HashAlgorithm;
import org.pgpainless.algorithm.KeyFlag;
import org.pgpainless.algorithm.PublicKeyAlgorithm;
import org.pgpainless.key.util.RevocationAttributes;
public class SignatureSubpacketsHelper {
public static SignatureSubpackets applyFrom(PGPSignatureSubpacketVector vector, SignatureSubpackets subpackets) {
for (SignatureSubpacket subpacket : vector.toArray()) {
org.pgpainless.algorithm.SignatureSubpacket type = org.pgpainless.algorithm.SignatureSubpacket.requireFromCode(subpacket.getType());
switch (type) {
case signatureCreationTime:
case issuerKeyId:
case issuerFingerprint:
// ignore, we override this anyways
break;
case signatureExpirationTime:
SignatureExpirationTime sigExpTime = (SignatureExpirationTime) subpacket;
subpackets.setSignatureExpirationTime(sigExpTime.isCritical(), sigExpTime.getTime());
break;
case exportableCertification:
Exportable exp = (Exportable) subpacket;
subpackets.setExportable(exp.isCritical(), exp.isExportable());
break;
case trustSignature:
TrustSignature trustSignature = (TrustSignature) subpacket;
subpackets.setTrust(trustSignature.isCritical(), trustSignature.getDepth(), trustSignature.getTrustAmount());
break;
case revocable:
Revocable rev = (Revocable) subpacket;
subpackets.setRevocable(rev.isCritical(), rev.isRevocable());
break;
case keyExpirationTime:
KeyExpirationTime keyExpTime = (KeyExpirationTime) subpacket;
subpackets.setKeyExpirationTime(keyExpTime.isCritical(), keyExpTime.getTime());
break;
case preferredSymmetricAlgorithms:
subpackets.setPreferredSymmetricKeyAlgorithms((PreferredAlgorithms) subpacket);
break;
case revocationKey:
RevocationKey revocationKey = (RevocationKey) subpacket;
subpackets.addRevocationKey(revocationKey);
break;
case notationData:
NotationData notationData = (NotationData) subpacket;
subpackets.addNotationData(notationData.isCritical(), notationData.getNotationName(), notationData.getNotationValue());
break;
case preferredHashAlgorithms:
subpackets.setPreferredHashAlgorithms((PreferredAlgorithms) subpacket);
break;
case preferredCompressionAlgorithms:
subpackets.setPreferredCompressionAlgorithms((PreferredAlgorithms) subpacket);
break;
case primaryUserId:
PrimaryUserID primaryUserID = (PrimaryUserID) subpacket;
subpackets.setPrimaryUserId(primaryUserID);
break;
case keyFlags:
KeyFlags flags = (KeyFlags) subpacket;
subpackets.setKeyFlags(flags.isCritical(), KeyFlag.fromBitmask(flags.getFlags()).toArray(new KeyFlag[0]));
break;
case signerUserId:
SignerUserID signerUserID = (SignerUserID) subpacket;
subpackets.setSignerUserId(signerUserID.isCritical(), signerUserID.getID());
break;
case revocationReason:
RevocationReason reason = (RevocationReason) subpacket;
subpackets.setRevocationReason(reason.isCritical(),
RevocationAttributes.Reason.fromCode(reason.getRevocationReason()),
reason.getRevocationDescription());
break;
case features:
Features f = (Features) subpacket;
subpackets.setFeatures(f.isCritical(), Feature.fromBitmask(f.getData()[0]).toArray(new Feature[0]));
break;
case signatureTarget:
SignatureTarget target = (SignatureTarget) subpacket;
subpackets.setSignatureTarget(target.isCritical(),
PublicKeyAlgorithm.requireFromId(target.getPublicKeyAlgorithm()),
HashAlgorithm.requireFromId(target.getHashAlgorithm()),
target.getHashData());
break;
case embeddedSignature:
EmbeddedSignature embeddedSignature = (EmbeddedSignature) subpacket;
subpackets.addEmbeddedSignature(embeddedSignature);
break;
case intendedRecipientFingerprint:
IntendedRecipientFingerprint intendedRecipientFingerprint = (IntendedRecipientFingerprint) subpacket;
subpackets.addIntendedRecipientFingerprint(intendedRecipientFingerprint);
break;
case policyUrl:
PolicyURI policyURI = (PolicyURI) subpacket;
subpackets.setPolicyUrl(policyURI);
break;
case regularExpression:
RegularExpression regex = (RegularExpression) subpacket;
subpackets.setRegularExpression(regex);
break;
case keyServerPreferences:
case preferredKeyServers:
case placeholder:
case preferredAEADAlgorithms:
case attestedCertification:
subpackets.addResidualSubpacket(subpacket);
break;
}
}
return subpackets;
}
public static PGPSignatureSubpacketGenerator applyTo(SignatureSubpackets subpackets, PGPSignatureSubpacketGenerator generator) {
addSubpacket(generator, subpackets.getIssuerKeyIdSubpacket());
addSubpacket(generator, subpackets.getIssuerFingerprintSubpacket());
addSubpacket(generator, subpackets.getSignatureCreationTimeSubpacket());
addSubpacket(generator, subpackets.getSignatureExpirationTimeSubpacket());
addSubpacket(generator, subpackets.getExportableSubpacket());
addSubpacket(generator, subpackets.getPolicyURISubpacket());
addSubpacket(generator, subpackets.getRegularExpressionSubpacket());
for (NotationData notationData : subpackets.getNotationDataSubpackets()) {
addSubpacket(generator, notationData);
}
for (IntendedRecipientFingerprint intendedRecipientFingerprint : subpackets.getIntendedRecipientFingerprintSubpackets()) {
addSubpacket(generator, intendedRecipientFingerprint);
}
for (RevocationKey revocationKey : subpackets.getRevocationKeySubpackets()) {
addSubpacket(generator, revocationKey);
}
addSubpacket(generator, subpackets.getSignatureTargetSubpacket());
addSubpacket(generator, subpackets.getFeaturesSubpacket());
addSubpacket(generator, subpackets.getKeyFlagsSubpacket());
addSubpacket(generator, subpackets.getTrustSubpacket());
addSubpacket(generator, subpackets.getPreferredCompressionAlgorithmsSubpacket());
addSubpacket(generator, subpackets.getPreferredSymmetricKeyAlgorithmsSubpacket());
addSubpacket(generator, subpackets.getPreferredHashAlgorithmsSubpacket());
for (EmbeddedSignature embeddedSignature : subpackets.getEmbeddedSignatureSubpackets()) {
addSubpacket(generator, embeddedSignature);
}
addSubpacket(generator, subpackets.getSignerUserIdSubpacket());
addSubpacket(generator, subpackets.getKeyExpirationTimeSubpacket());
addSubpacket(generator, subpackets.getPrimaryUserIdSubpacket());
addSubpacket(generator, subpackets.getRevocableSubpacket());
addSubpacket(generator, subpackets.getRevocationReasonSubpacket());
for (SignatureSubpacket subpacket : subpackets.getResidualSubpackets()) {
addSubpacket(generator, subpacket);
}
return generator;
}
private static void addSubpacket(PGPSignatureSubpacketGenerator generator, SignatureSubpacket subpacket) {
if (subpacket != null) {
generator.addCustomSubpacket(subpacket);
}
}
public static PGPSignatureSubpacketVector toVector(SignatureSubpackets subpackets) {
PGPSignatureSubpacketGenerator generator = new PGPSignatureSubpacketGenerator();
applyTo(subpackets, generator);
return generator.generate();
}
public static PGPSignatureSubpacketVector toVector(RevocationSignatureSubpackets subpackets) {
PGPSignatureSubpacketGenerator generator = new PGPSignatureSubpacketGenerator();
applyTo((SignatureSubpackets) subpackets, generator);
return generator.generate();
}
}

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@ -1,8 +0,0 @@
// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
/**
* Classes related to OpenPGP signatures.
*/
package org.pgpainless.signature.subpackets;

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@ -70,16 +70,12 @@ class SignatureSubpackets
@JvmStatic
fun createSubpacketsFrom(base: PGPSignatureSubpacketVector): SignatureSubpackets {
return SignatureSubpackets().apply {
SignatureSubpacketsHelper.applyFrom(base, this)
}
return SignatureSubpacketsHelper.applyFrom(base, SignatureSubpackets())
}
@JvmStatic
fun createHashedSubpackets(issuer: PGPPublicKey): SignatureSubpackets {
return SignatureSubpackets().apply {
setIssuerFingerprintAndKeyId(issuer)
}
return createEmptySubpackets().setIssuerFingerprintAndKeyId(issuer)
}
@JvmStatic

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@ -0,0 +1,159 @@
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.signature.subpackets
import org.bouncycastle.bcpg.sig.*
import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator
import org.bouncycastle.openpgp.PGPSignatureSubpacketVector
import org.pgpainless.algorithm.*
import org.pgpainless.key.util.RevocationAttributes
class SignatureSubpacketsHelper {
companion object {
@JvmStatic
fun applyFrom(vector: PGPSignatureSubpacketVector, subpackets: SignatureSubpackets) = subpackets.apply {
for (subpacket in vector.toArray()) {
val type = SignatureSubpacket.requireFromCode(subpacket.type)
when (type) {
SignatureSubpacket.signatureCreationTime,
SignatureSubpacket.issuerKeyId,
SignatureSubpacket.issuerFingerprint -> { /* ignore, we override this anyway */ }
SignatureSubpacket.signatureExpirationTime -> (subpacket as SignatureExpirationTime).let {
subpackets.setSignatureExpirationTime(it.isCritical, it.time)
}
SignatureSubpacket.exportableCertification -> (subpacket as Exportable).let {
subpackets.setExportable(it.isCritical, it.isExportable)
}
SignatureSubpacket.trustSignature -> (subpacket as TrustSignature).let {
subpackets.setTrust(it.isCritical, it.depth, it.trustAmount)
}
SignatureSubpacket.revocable -> (subpacket as Revocable).let {
subpackets.setRevocable(it.isCritical, it.isRevocable)
}
SignatureSubpacket.keyExpirationTime -> (subpacket as KeyExpirationTime).let {
subpackets.setKeyExpirationTime(it.isCritical, it.time)
}
SignatureSubpacket.preferredSymmetricAlgorithms -> (subpacket as PreferredAlgorithms).let {
subpackets.setPreferredSymmetricKeyAlgorithms(PreferredAlgorithms(it.type, it.isCritical, it.isLongLength, it.data))
}
SignatureSubpacket.preferredHashAlgorithms -> (subpacket as PreferredAlgorithms).let {
subpackets.setPreferredHashAlgorithms(PreferredAlgorithms(it.type, it.isCritical, it.isLongLength, it.data))
}
SignatureSubpacket.preferredCompressionAlgorithms -> (subpacket as PreferredAlgorithms).let {
subpackets.setPreferredCompressionAlgorithms(PreferredAlgorithms(it.type, it.isCritical, it.isLongLength, it.data))
}
SignatureSubpacket.revocationKey -> (subpacket as RevocationKey).let {
subpackets.addRevocationKey(RevocationKey(it.isCritical, it.signatureClass, it.algorithm, it.fingerprint))
}
SignatureSubpacket.notationData -> (subpacket as NotationData).let {
subpackets.addNotationData(it.isCritical, it.isHumanReadable, it.notationName, it.notationValue)
}
SignatureSubpacket.primaryUserId -> (subpacket as PrimaryUserID).let {
subpackets.setPrimaryUserId(PrimaryUserID(it.isCritical, it.isPrimaryUserID))
}
SignatureSubpacket.keyFlags -> (subpacket as KeyFlags).let {
subpackets.setKeyFlags(it.isCritical, *(KeyFlag.fromBitmask(it.flags).toTypedArray()))
}
SignatureSubpacket.signerUserId -> (subpacket as SignerUserID).let {
subpackets.setSignerUserId(it.isCritical, it.id)
}
SignatureSubpacket.revocationReason -> (subpacket as RevocationReason).let {
subpackets.setRevocationReason(it.isCritical, RevocationAttributes.Reason.fromCode(it.revocationReason), it.revocationDescription)
}
SignatureSubpacket.features -> (subpacket as Features).let {
subpackets.setFeatures(it.isCritical, *(Feature.fromBitmask(it.features.toInt()).toTypedArray()))
}
SignatureSubpacket.signatureTarget -> (subpacket as SignatureTarget).let {
subpackets.setSignatureTarget(it.isCritical,
PublicKeyAlgorithm.requireFromId(it.publicKeyAlgorithm),
HashAlgorithm.requireFromId(it.hashAlgorithm),
it.hashData)
}
SignatureSubpacket.embeddedSignature -> (subpacket as EmbeddedSignature).let {
subpackets.addEmbeddedSignature(it)
}
SignatureSubpacket.intendedRecipientFingerprint -> (subpacket as IntendedRecipientFingerprint).let {
subpackets.addIntendedRecipientFingerprint(it)
}
SignatureSubpacket.policyUrl -> (subpacket as PolicyURI).let {
subpackets.setPolicyUrl(it)
}
SignatureSubpacket.regularExpression -> (subpacket as RegularExpression).let {
subpackets.setRegularExpression(it)
}
SignatureSubpacket.keyServerPreferences,
SignatureSubpacket.preferredKeyServers,
SignatureSubpacket.placeholder,
SignatureSubpacket.preferredAEADAlgorithms,
SignatureSubpacket.attestedCertification -> subpackets.addResidualSubpacket(subpacket)
}
}
}
@JvmStatic
fun applyTo(subpackets: SignatureSubpackets, generator: PGPSignatureSubpacketGenerator): PGPSignatureSubpacketGenerator {
return generator.apply {
addSubpacket(subpackets.issuerKeyIdSubpacket)
addSubpacket(subpackets.issuerFingerprintSubpacket)
addSubpacket(subpackets.signatureCreationTimeSubpacket)
addSubpacket(subpackets.signatureExpirationTimeSubpacket)
addSubpacket(subpackets.exportableSubpacket)
addSubpacket(subpackets.policyURISubpacket)
addSubpacket(subpackets.regularExpressionSubpacket)
for (notation in subpackets.notationDataSubpackets) {
addSubpacket(notation)
}
for (recipient in subpackets.intendedRecipientFingerprintSubpackets) {
addSubpacket(recipient)
}
for (revocationKey in subpackets.revocationKeySubpackets) {
addSubpacket(revocationKey)
}
addSubpacket(subpackets.signatureTargetSubpacket)
addSubpacket(subpackets.featuresSubpacket)
addSubpacket(subpackets.keyFlagsSubpacket)
addSubpacket(subpackets.trustSubpacket)
addSubpacket(subpackets.preferredCompressionAlgorithmsSubpacket)
addSubpacket(subpackets.preferredSymmetricKeyAlgorithmsSubpacket)
addSubpacket(subpackets.preferredHashAlgorithmsSubpacket)
for (embedded in subpackets.embeddedSignatureSubpackets) {
addSubpacket(embedded)
}
addSubpacket(subpackets.signerUserIdSubpacket)
addSubpacket(subpackets.keyExpirationTimeSubpacket)
addSubpacket(subpackets.primaryUserIdSubpacket)
addSubpacket(subpackets.revocableSubpacket)
addSubpacket(subpackets.revocationReasonSubpacket)
for (residual in subpackets.residualSubpackets) {
addSubpacket(residual)
}
}
}
@JvmStatic
private fun PGPSignatureSubpacketGenerator.addSubpacket(subpacket: org.bouncycastle.bcpg.SignatureSubpacket?) {
if (subpacket != null) {
this.addCustomSubpacket(subpacket)
}
}
@JvmStatic
fun toVector(subpackets: SignatureSubpackets): PGPSignatureSubpacketVector {
return PGPSignatureSubpacketGenerator().let {
applyTo(subpackets, it)
it.generate()
}
}
@JvmStatic
fun toVector(subpackets: RevocationSignatureSubpackets): PGPSignatureSubpacketVector {
return PGPSignatureSubpacketGenerator().let {
applyTo(subpackets as SignatureSubpackets, it)
it.generate()
}
}
}
}