109 lines
4 KiB
Java
109 lines
4 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.pgp;
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import org.bouncycastle.openpgp.PGPObjectFactory;
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import org.bouncycastle.openpgp.PGPPublicKey;
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import org.bouncycastle.openpgp.PGPPublicKeyRing;
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import org.bouncycastle.openpgp.PGPSecretKey;
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import org.bouncycastle.openpgp.PGPSecretKeyRing;
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import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
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import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
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import org.sufficientlysecure.keychain.util.IterableIterator;
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import java.io.IOException;
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import java.util.Iterator;
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public class CanonicalizedPublicKeyRing extends CanonicalizedKeyRing {
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private PGPPublicKeyRing mRing;
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CanonicalizedPublicKeyRing(PGPPublicKeyRing ring, int verified) {
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super(verified);
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mRing = ring;
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}
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public CanonicalizedPublicKeyRing(byte[] blob, int verified) {
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super(verified);
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if(mRing == null) {
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// get first object in block
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PGPObjectFactory factory = new PGPObjectFactory(blob, new JcaKeyFingerprintCalculator());
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try {
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Object obj = factory.nextObject();
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if (! (obj instanceof PGPPublicKeyRing)) {
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throw new RuntimeException("Error constructing CanonicalizedPublicKeyRing, should never happen!");
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}
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mRing = (PGPPublicKeyRing) obj;
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if (factory.nextObject() != null) {
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throw new RuntimeException("Encountered trailing data after keyring, should never happen!");
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}
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} catch (IOException e) {
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throw new RuntimeException("IO Error constructing CanonicalizedPublicKeyRing, should never happen!");
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}
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}
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}
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PGPPublicKeyRing getRing() {
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return mRing;
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}
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public IterableIterator<CanonicalizedPublicKey> publicKeyIterator() {
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@SuppressWarnings("unchecked")
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final Iterator<PGPPublicKey> it = getRing().getPublicKeys();
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return new IterableIterator<>(new Iterator<CanonicalizedPublicKey>() {
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@Override
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public boolean hasNext() {
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return it.hasNext();
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}
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@Override
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public CanonicalizedPublicKey next() {
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return new CanonicalizedPublicKey(CanonicalizedPublicKeyRing.this, it.next());
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}
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@Override
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public void remove() {
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it.remove();
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}
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});
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}
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/** Create a dummy secret ring from this key */
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public UncachedKeyRing createDivertSecretRing (byte[] cardAid, long[] subKeyIds) {
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PGPSecretKeyRing secRing = PGPSecretKeyRing.constructDummyFromPublic(getRing(), cardAid);
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if (subKeyIds == null) {
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return new UncachedKeyRing(secRing);
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}
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// if only specific subkeys should be promoted, construct a
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// stripped dummy, then move divert-to-card keys over
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PGPSecretKeyRing newRing = PGPSecretKeyRing.constructDummyFromPublic(getRing());
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for (long subKeyId : subKeyIds) {
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PGPSecretKey key = secRing.getSecretKey(subKeyId);
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if (key != null) {
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newRing = PGPSecretKeyRing.insertSecretKey(newRing, key);
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}
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}
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return new UncachedKeyRing(newRing);
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}
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} |