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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.pgp;
import org.bouncycastle.openpgp.PGPKeyRing;
import org.bouncycastle.openpgp.PGPPublicKey;
import org.bouncycastle.openpgp.PGPSecretKey;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.openpgp.PGPSignature;
import org.bouncycastle.openpgp.jcajce.JcaPGPObjectFactory;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.util.IterableIterator;
import org.sufficientlysecure.keychain.util.Log;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
public class CanonicalizedSecretKeyRing extends CanonicalizedKeyRing {
private PGPSecretKeyRing mRing;
CanonicalizedSecretKeyRing(PGPSecretKeyRing ring, int verified) {
super(verified);
mRing = ring;
}
public CanonicalizedSecretKeyRing(byte[] blob, boolean isRevoked, int verified)
{
super(verified);
JcaPGPObjectFactory factory = new JcaPGPObjectFactory(blob);
PGPKeyRing keyRing = null;
try {
if ((keyRing = (PGPKeyRing) factory.nextObject()) == null) {
Log.e(Constants.TAG, "No keys given!");
}
} catch (IOException e) {
Log.e(Constants.TAG, "Error while converting to PGPKeyRing!", e);
}
mRing = (PGPSecretKeyRing) keyRing;
}
PGPSecretKeyRing getRing() {
return mRing;
}
public CanonicalizedSecretKey getSecretKey() {
return new CanonicalizedSecretKey(this, mRing.getSecretKey());
}
public CanonicalizedSecretKey getSecretKey(long id) {
return new CanonicalizedSecretKey(this, mRing.getSecretKey(id));
}
/** Returns the key id which should be used for signing.
*
* This method returns keys which are actually available (ie. secret available, and not stripped,
* revoked, or expired), hence only works on keyrings where a secret key is available!
*/
public long getSecretSignId() throws PgpGeneralException {
for(CanonicalizedSecretKey key : secretKeyIterator()) {
if (key.canSign() && key.isValid() && key.getSecretKeyType().isUsable()) {
return key.getKeyId();
}
}
throw new PgpGeneralException("no valid signing key available");
}
public IterableIterator<CanonicalizedSecretKey> secretKeyIterator() {
final Iterator<PGPSecretKey> it = mRing.getSecretKeys();
return new IterableIterator<>(new Iterator<CanonicalizedSecretKey>() {
@Override
public boolean hasNext() {
return it.hasNext();
}
@Override
public CanonicalizedSecretKey next() {
return new CanonicalizedSecretKey(CanonicalizedSecretKeyRing.this, it.next());
}
@Override
public void remove() {
it.remove();
}
});
}
public IterableIterator<CanonicalizedPublicKey> publicKeyIterator() {
final Iterator<PGPPublicKey> it = getRing().getPublicKeys();
return new IterableIterator<>(new Iterator<CanonicalizedPublicKey>() {
@Override
public boolean hasNext() {
return it.hasNext();
}
@Override
public CanonicalizedPublicKey next() {
return new CanonicalizedPublicKey(CanonicalizedSecretKeyRing.this, it.next());
}
@Override
public void remove() {
it.remove();
}
});
}
public HashMap<String,String> getLocalNotationData() {
HashMap<String,String> result = new HashMap<>();
Iterator<PGPSignature> it = getRing().getPublicKey().getKeySignatures();
while (it.hasNext()) {
WrappedSignature sig = new WrappedSignature(it.next());
if (sig.isLocal()) {
result.putAll(sig.getNotation());
}
}
return result;
}
}
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