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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.spongycastle.openpgp.PGPObjectFactory;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPPublicKeyRing;
import org.spongycastle.openpgp.PGPSecretKey;
import org.spongycastle.openpgp.PGPSecretKeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
import org.sufficientlysecure.keychain.util.IterableIterator;
import java.io.IOException;
import java.util.Iterator;
public class CanonicalizedPublicKeyRing extends CanonicalizedKeyRing {
private PGPPublicKeyRing mRing;
CanonicalizedPublicKeyRing(PGPPublicKeyRing ring, int verified) {
super(verified);
mRing = ring;
}
public CanonicalizedPublicKeyRing(byte[] blob, int verified) {
super(verified);
if(mRing == null) {
// get first object in block
PGPObjectFactory factory = new PGPObjectFactory(blob);
try {
Object obj = factory.nextObject();
if (! (obj instanceof PGPPublicKeyRing)) {
throw new RuntimeException("Error constructing CanonicalizedPublicKeyRing, should never happen!");
}
mRing = (PGPPublicKeyRing) obj;
if (factory.nextObject() != null) {
throw new RuntimeException("Encountered trailing data after keyring, should never happen!");
}
} catch (IOException e) {
throw new RuntimeException("IO Error constructing CanonicalizedPublicKeyRing, should never happen!");
}
}
}
PGPPublicKeyRing getRing() {
return mRing;
}
public IterableIterator<CanonicalizedPublicKey> publicKeyIterator() {
@SuppressWarnings("unchecked")
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(CanonicalizedPublicKeyRing.this, it.next());
}
@Override
public void remove() {
it.remove();
}
});
}
/** Create a dummy secret ring from this key */
public UncachedKeyRing createDivertSecretRing (byte[] cardAid, long[] subKeyIds) {
PGPSecretKeyRing secRing = PGPSecretKeyRing.constructDummyFromPublic(getRing(), cardAid);
if (subKeyIds == null) {
return new UncachedKeyRing(secRing);
}
// if only specific subkeys should be promoted, construct a
// stripped dummy, then move divert-to-card keys over
PGPSecretKeyRing newRing = PGPSecretKeyRing.constructDummyFromPublic(getRing());
for (long subKeyId : subKeyIds) {
PGPSecretKey key = secRing.getSecretKey(subKeyId);
if (key != null) {
newRing = PGPSecretKeyRing.insertSecretKey(newRing, key);
}
}
return new UncachedKeyRing(newRing);
}
}
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