/// <summary>
/// Signs transaction
/// </summary>
/// <param name="profile">profile of the signer</param>
/// <param name="transaction">transaction to sign</param>
/// <returns>encoded signed transaction</returns>
public async Task <string> SignTransaction(Profile profile, PlasmaCore.Transactions.Transaction transaction)
{
byte[] encodedTx = transactionEncoder.EncodeRaw(transaction);
string signature = await profile.SignTransaction(encodedTx);
transaction.SetSignature(profile.ID, signature.HexToByteArray());
return(transactionEncoder.EncodeSigned(transaction).ToHex(true));
}
/// <summary>
/// Submits signed transactions and queue response utxos
/// </summary>
/// <returns></returns>
public async Task ProcessTransactions()
{
if (CanMerge)
{
foreach (var transaction in Transactions)
{
string encodedTx = txEncoder.EncodeSigned(transaction).ToHex(true);
TransactionReceipt receipt = await plasmaAPIService.SubmitTransaction(encodedTx);
if (receipt != null)
{
UTXOData utxo = new UTXOData();
utxo.BlkNum = receipt.BlkNum;
utxo.TxIndex = receipt.TxIndex;
utxo.OIndex = 0;
utxo.Data = transaction.Outputs[0].Value.ToBigIntegerFromRLPDecoded();
utxo.Owner = transaction.Outputs[0].Owner;
utxo.Currency = transaction.Outputs[0].Currency;
utxo.Position = UTXOData.CalculatePosition(utxo.BlkNum, utxo.TxIndex, utxo.OIndex);
utxoList.Add(utxo);
}
}
Transactions.Clear();
PrepareTransactions();
}
}
public static string Sign(ITransactionEncoder txEncoder, Transaction transaction, string address, string privateKey)
{
byte[] encodedTx = txEncoder.EncodeRaw(transaction);
var rawHash = new Sha3Keccack().CalculateHash(encodedTx);
var ecKey = new Nethereum.Signer.EthECKey(privateKey);
var ecdsaSignature = ecKey.SignAndCalculateV(rawHash);
string signature = Nethereum.Signer.EthECDSASignature.CreateStringSignature(ecdsaSignature);
transaction.SetSignature(address, signature.HexToByteArray());
return(txEncoder.EncodeSigned(transaction).ToHex(true));
}