public static async Task <OwnershipVerificationCodeDto> GetCodeInDto(string txid, EncryptionKey key)
{
var dto = new OwnershipVerificationCodeDto();
dto.TxId = txid;
dto.Signature = (await GetCode(txid, key)).Item2;
return(dto);
}
/*
* public static async Task<(bool,(OwnershipVerificationCodeDto,byte[]))> GetQRCode(string txid, EncryptionKey key)
* {
* var signature = await GetCode(txid, key);
* if (signature.Item1)
* {
* var dto = new OwnershipVerificationCodeDto();
* dto.TxId = txid;
* dto.Signature = signature.Item2;
* var dtos = JsonConvert.SerializeObject(dto);
* if (dtos != null)
* {
* QRCodeData qrCodeData = qrGenerator.CreateQrCode(dtos, QRCodeGenerator.ECCLevel.Q);
* var qrCode = new BitmapByteQRCode(qrCodeData);
* var g = qrCode.GetGraphic(20);
* return (true, (dto, g));
* }
* }
* return (false, (null, null));
* }
*/
public static async Task <OwnershipVerificationResult> VerifyOwner(OwnershipVerificationCodeDto dto)
{
var msg = CreateMessage(dto.TxId);
var res = await NFTHelpers.GetNFTWithOwner(dto.TxId);
if (res.Item1)
{
//var ownerpubkey = await NFTHelpers.GetPubKeyFromProfileNFTTx(res.Item2.Owner);
/*var ownerpubkey = await NFTHelpers.GetPubKeyFromLastFoundTx(res.Item2.Owner);
* if (!ownerpubkey.Item1)
* return new OwnershipVerificationResult()
* {
* Owner = res.Item2.Owner,
* Sender = res.Item2.Sender,
* NFT = res.Item2.NFT,
* Message = msg,
* VerifyResult = "Cannot get owner pubkey. He probably did not allow this function."
* };*/
var r = await ECDSAProvider.VerifyMessage(msg, dto.Signature, res.Item2.Owner);
if (r.Item1)
{
return(new OwnershipVerificationResult()
{
Owner = res.Item2.Owner,
Sender = res.Item2.Sender,
NFT = res.Item2.NFT,
Message = msg,
VerifyResult = "Verified. This is owner. Signature is valid."
});
}
else
{
if (r.Item2 != null)
{
return new OwnershipVerificationResult()
{
Owner = res.Item2.Owner,
Sender = res.Item2.Sender,
NFT = res.Item2.NFT,
Message = msg,
VerifyResult = "Not Owner of NFT or provided signature is no longer valid."
}
}
;
}
}
return(new OwnershipVerificationResult()
{
VerifyResult = "Not Valid input."
});
}
public static async Task <(bool, (OwnershipVerificationCodeDto, byte[]))> GetQRCode(string txid, NBitcoin.BitcoinSecret key)
{
var signature = await GetCode(txid, key);
if (signature.Item1)
{
var dto = new OwnershipVerificationCodeDto();
dto.TxId = txid;
dto.Signature = signature.Item2;
var dtos = JsonConvert.SerializeObject(dto);
if (dtos != null)
{
//QRCodeData qrCodeData = qrGenerator.CreateQrCode(dtos, QRCodeGenerator.ECCLevel.Q);
//var qrCode = new BitmapByteQRCode(qrCodeData);
//var g = qrCode.GetGraphic(20);
return(true, (dto, new byte[0]));
}
}
return(false, (null, null));
}