mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-11-24 01:32:16 -05:00
introduce WrappedSignature for the ViewCert* ui code
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@ -0,0 +1,124 @@
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package org.sufficientlysecure.keychain.pgp;
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import org.spongycastle.bcpg.SignatureSubpacket;
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import org.spongycastle.bcpg.SignatureSubpacketTags;
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import org.spongycastle.bcpg.sig.RevocationReason;
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import org.spongycastle.openpgp.PGPException;
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import org.spongycastle.openpgp.PGPObjectFactory;
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import org.spongycastle.openpgp.PGPSignature;
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import org.spongycastle.openpgp.PGPSignatureList;
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import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.util.Log;
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import java.io.IOException;
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import java.security.SignatureException;
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public class WrappedSignature {
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public static final int DEFAULT_CERTIFICATION = PGPSignature.DEFAULT_CERTIFICATION;
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public static final int NO_CERTIFICATION = PGPSignature.NO_CERTIFICATION;
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public static final int CASUAL_CERTIFICATION = PGPSignature.CASUAL_CERTIFICATION;
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public static final int POSITIVE_CERTIFICATION = PGPSignature.POSITIVE_CERTIFICATION;
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public static final int CERTIFICATION_REVOCATION = PGPSignature.CERTIFICATION_REVOCATION;
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final PGPSignature mSig;
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protected WrappedSignature(PGPSignature sig) {
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mSig = sig;
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}
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public long getKeyId() {
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return mSig.getKeyID();
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}
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public int getKeyAlgorithm() {
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return mSig.getKeyAlgorithm();
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}
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public void init(WrappedPublicKey key) throws PgpGeneralException {
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try {
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JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
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new JcaPGPContentVerifierBuilderProvider()
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
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mSig.init(contentVerifierBuilderProvider, key.getPublicKey());
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} catch(PGPException e) {
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throw new PgpGeneralException(e);
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}
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}
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public void update(byte[] data, int offset, int length) throws PgpGeneralException {
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try {
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mSig.update(data, offset, length);
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} catch(SignatureException e) {
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throw new PgpGeneralException(e);
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}
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}
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public void update(byte data) throws PgpGeneralException {
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try {
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mSig.update(data);
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} catch(SignatureException e) {
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throw new PgpGeneralException(e);
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}
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}
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public boolean verify() throws PgpGeneralException {
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try {
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return mSig.verify();
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} catch(SignatureException e) {
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throw new PgpGeneralException(e);
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} catch(PGPException e) {
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throw new PgpGeneralException(e);
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}
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}
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public boolean isRevocation() {
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return mSig.getHashedSubPackets().hasSubpacket(SignatureSubpacketTags.REVOCATION_REASON);
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}
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public String getRevocationReason() throws PgpGeneralException {
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if(!isRevocation()) {
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throw new PgpGeneralException("Not a revocation signature.");
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}
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SignatureSubpacket p = mSig.getHashedSubPackets().getSubpacket(
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SignatureSubpacketTags.REVOCATION_REASON);
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// For some reason, this is missing in SignatureSubpacketInputStream:146
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if (!(p instanceof RevocationReason)) {
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p = new RevocationReason(false, p.getData());
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}
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return ((RevocationReason) p).getRevocationDescription();
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}
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/** Verify a signature for this pubkey, after it has been initialized by the signer using
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* initSignature(). This method should probably move into a wrapped PGPSignature class
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* at some point.
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*/
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public boolean verifySignature(WrappedPublicKey key, String uid) throws PgpGeneralException {
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try {
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return mSig.verifyCertification(uid, key.getPublicKey());
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} catch (SignatureException e) {
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throw new PgpGeneralException("Error!", e);
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} catch (PGPException e) {
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throw new PgpGeneralException("Error!", e);
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}
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}
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public static WrappedSignature fromBytes(byte[] data) {
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PGPObjectFactory factory = new PGPObjectFactory(data);
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PGPSignatureList signatures = null;
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try {
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if ((signatures = (PGPSignatureList) factory.nextObject()) == null || signatures.isEmpty()) {
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Log.e(Constants.TAG, "No signatures given!");
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return null;
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}
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} catch (IOException e) {
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Log.e(Constants.TAG, "Error while converting to PGPSignature!", e);
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return null;
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}
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return new WrappedSignature(signatures.get(0));
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}
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}
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@ -32,16 +32,11 @@ import android.view.MenuItem;
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import android.view.View;
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import android.widget.TextView;
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import org.spongycastle.bcpg.SignatureSubpacket;
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import org.spongycastle.bcpg.SignatureSubpacketTags;
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import org.spongycastle.bcpg.sig.RevocationReason;
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import org.spongycastle.openpgp.PGPException;
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import org.spongycastle.openpgp.PGPSignature;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.WrappedPublicKeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.pgp.WrappedSignature;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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@ -144,23 +139,25 @@ public class ViewCertActivity extends ActionBarActivity
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mCertifierUid.setText(R.string.unknown_uid);
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}
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PGPSignature sig = PgpConversionHelper.BytesToPGPSignature(data.getBlob(INDEX_DATA));
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WrappedSignature sig = WrappedSignature.fromBytes(data.getBlob(INDEX_DATA));
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try {
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ProviderHelper providerHelper = new ProviderHelper(this);
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WrappedPublicKeyRing signeeRing = providerHelper.getWrappedPublicKeyRing(data.getLong(INDEX_MASTER_KEY_ID));
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WrappedPublicKeyRing signerRing = providerHelper.getWrappedPublicKeyRing(sig.getKeyID());
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WrappedPublicKeyRing signeeRing =
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providerHelper.getWrappedPublicKeyRing(data.getLong(INDEX_MASTER_KEY_ID));
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WrappedPublicKeyRing signerRing =
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providerHelper.getWrappedPublicKeyRing(sig.getKeyId());
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try {
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signerRing.getSubkey().initSignature(sig);
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if (signeeRing.getSubkey().verifySignature(sig, signeeUid)) {
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sig.init(signerRing.getSubkey());
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if (sig.verifySignature(signeeRing.getSubkey(), signeeUid)) {
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mStatus.setText(R.string.cert_verify_ok);
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mStatus.setTextColor(getResources().getColor(R.color.bbutton_success));
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} else {
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mStatus.setText(R.string.cert_verify_failed);
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mStatus.setTextColor(getResources().getColor(R.color.alert));
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}
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} catch (PGPException e) {
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} catch (PgpGeneralException e) {
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mStatus.setText(R.string.cert_verify_error);
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mStatus.setTextColor(getResources().getColor(R.color.alert));
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}
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@ -174,29 +171,26 @@ public class ViewCertActivity extends ActionBarActivity
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mRowReason.setVisibility(View.GONE);
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switch (data.getInt(INDEX_TYPE)) {
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case PGPSignature.DEFAULT_CERTIFICATION:
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case WrappedSignature.DEFAULT_CERTIFICATION:
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mType.setText(R.string.cert_default);
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break;
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case PGPSignature.NO_CERTIFICATION:
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case WrappedSignature.NO_CERTIFICATION:
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mType.setText(R.string.cert_none);
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break;
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case PGPSignature.CASUAL_CERTIFICATION:
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case WrappedSignature.CASUAL_CERTIFICATION:
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mType.setText(R.string.cert_casual);
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break;
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case PGPSignature.POSITIVE_CERTIFICATION:
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case WrappedSignature.POSITIVE_CERTIFICATION:
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mType.setText(R.string.cert_positive);
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break;
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case PGPSignature.CERTIFICATION_REVOCATION: {
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case WrappedSignature.CERTIFICATION_REVOCATION: {
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mType.setText(R.string.cert_revoke);
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if (sig.getHashedSubPackets().hasSubpacket(SignatureSubpacketTags.REVOCATION_REASON)) {
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SignatureSubpacket p = sig.getHashedSubPackets().getSubpacket(
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SignatureSubpacketTags.REVOCATION_REASON);
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// For some reason, this is missing in SignatureSubpacketInputStream:146
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if (!(p instanceof RevocationReason)) {
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p = new RevocationReason(false, p.getData());
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if (sig.isRevocation()) {
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try {
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mReason.setText(sig.getRevocationReason());
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} catch(PgpGeneralException e) {
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mReason.setText(R.string.none);
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}
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String reason = ((RevocationReason) p).getRevocationDescription();
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mReason.setText(reason);
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mRowReason.setVisibility(View.VISIBLE);
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}
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break;
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@ -33,10 +33,10 @@ import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.TextView;
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import org.spongycastle.openpgp.PGPSignature;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.pgp.WrappedSignature;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
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import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
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import org.sufficientlysecure.keychain.util.Log;
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@ -227,19 +227,19 @@ public class ViewKeyCertsFragment extends LoaderFragment
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wSignerKeyId.setText(signerKeyId);
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switch (cursor.getInt(mIndexType)) {
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case PGPSignature.DEFAULT_CERTIFICATION: // 0x10
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case WrappedSignature.DEFAULT_CERTIFICATION: // 0x10
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wSignStatus.setText(R.string.cert_default);
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break;
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case PGPSignature.NO_CERTIFICATION: // 0x11
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case WrappedSignature.NO_CERTIFICATION: // 0x11
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wSignStatus.setText(R.string.cert_none);
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break;
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case PGPSignature.CASUAL_CERTIFICATION: // 0x12
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case WrappedSignature.CASUAL_CERTIFICATION: // 0x12
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wSignStatus.setText(R.string.cert_casual);
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break;
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case PGPSignature.POSITIVE_CERTIFICATION: // 0x13
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case WrappedSignature.POSITIVE_CERTIFICATION: // 0x13
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wSignStatus.setText(R.string.cert_positive);
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break;
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case PGPSignature.CERTIFICATION_REVOCATION: // 0x30
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case WrappedSignature.CERTIFICATION_REVOCATION: // 0x30
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wSignStatus.setText(R.string.cert_revoke);
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break;
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}
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