@Override
public byte[] recoverKey(int recId, byte[] signatureParam, byte[] hashValue) {
Signature signature = Signatures.decodeSignatureParameters(new ByteReader(signatureParam));
Sha256Hash hash = new Sha256Hash(hashValue);
PublicKey key = SignedMessage.recoverFromSignature(recId, signature, hash, false);
if (key != null) {
return key.getPublicKeyBytes();
} else {
return null;
}
}
@Override
public BitcoinSigner findSignerByPublicKey(PublicKey publicKey) {
Address address = publicKey.toAddress(_network);
InMemoryPrivateKey privateKey;
try {
privateKey = getPrivateKeyForAddress(address, _cipher);
} catch (InvalidKeyCipher e) {
throw new RuntimeException(
"Unable to decrypt private key for address " + address.toString());
}
if (privateKey != null) {
return privateKey;
}
throw new RuntimeException("Unable to find private key for address " + address.toString());
}