bool CryptoECDSA::CheckPubPrivKeyMatch(BTC_PRIVKEY const & cppPrivKey,
BTC_PUBKEY const & cppPubKey)
{
BTC_PUBKEY computedPubKey;
cppPrivKey.MakePublicKey(computedPubKey);
BTC_ECPOINT ppA = cppPubKey.GetPublicElement();
BTC_ECPOINT ppB = computedPubKey.GetPublicElement();
return (ppA.x==ppB.x && ppA.y==ppB.y);
}
SecureBinaryData CryptoECDSA::SerializePublicKey(BTC_PUBKEY const & pubKey)
{
BTC_ECPOINT publicPoint = pubKey.GetPublicElement();
CryptoPP::Integer pubX = publicPoint.x;
CryptoPP::Integer pubY = publicPoint.y;
SecureBinaryData pubData(65);
pubData.fill(0x04); // we fill just to set the first byte...
pubX.Encode(pubData.getPtr()+1, 32, UNSIGNED);
pubY.Encode(pubData.getPtr()+33, 32, UNSIGNED);
return pubData;
}