public (bool res, HashgraphError err) Verify(BlockSignature sig)
{
var signBytes = Body.Hash();
var pubKey = CryptoUtils.ToEcdsaPub(sig.Validator);
var signature = sig.Signature;
return(CryptoUtils.Verify(pubKey, signBytes, signature), null);
}
//ecdsa sig
public (BlockSignature bs, HashgraphError err) Sign(CngKey privKey)
{
var signBytes = Body.Hash();
var signiture = CryptoUtils.Sign(privKey, signBytes);
var bs = new BlockSignature
{
Validator = CryptoUtils.FromEcdsaPub(privKey),
Index = Index(),
Signature = signiture
};
return(bs, null);
}
public HashgraphError SetSignature(BlockSignature bs)
{
Signatures[bs.ValidatorHex()] = bs.Signature;
return(null);
}