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package org.sufficientlysecure.keychain.pgp;
import org.spongycastle.openpgp.PGPException;
import org.spongycastle.openpgp.PGPOnePassSignature;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPSignature;
import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.util.IterableIterator;
import java.security.SignatureException;
public class CachedPublicKey extends UncachedPublicKey {
// this is the parent key ring
final CachedKeyRing mRing;
CachedPublicKey(CachedKeyRing ring, PGPPublicKey key) {
super(key);
mRing = ring;
}
public IterableIterator<String> getUserIds() {
return new IterableIterator<String>(mPublicKey.getUserIDs());
}
public CachedKeyRing getKeyRing() {
return mRing;
}
JcePublicKeyKeyEncryptionMethodGenerator getPubKeyEncryptionGenerator() {
return new JcePublicKeyKeyEncryptionMethodGenerator(mPublicKey);
}
public void initSignature(PGPSignature sig) throws PGPException {
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
new JcaPGPContentVerifierBuilderProvider()
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
sig.init(contentVerifierBuilderProvider, mPublicKey);
}
public void initSignature(PGPOnePassSignature sig) throws PGPException {
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
new JcaPGPContentVerifierBuilderProvider()
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
sig.init(contentVerifierBuilderProvider, mPublicKey);
}
/** Verify a signature for this pubkey, after it has been initialized by the signer using
* initSignature(). This method should probably move into a wrapped PGPSignature class
* at some point.
*/
public boolean verifySignature(PGPSignature sig, String uid) throws PGPException {
try {
return sig.verifyCertification(uid, mPublicKey);
} catch (SignatureException e) {
throw new PGPException("Error!", e);
}
}
}
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