private string DeployContract()
{
try
{
Web3 web3 = GetWeb3();
// Deploy Iterable Mapping Library
TransactionReceipt transactionReceiptDeployment;
string contractAddress;
RSKContractHelper.DeployIterableMappingContract(web3,
out transactionReceiptDeployment,
out contractAddress,
out contractHandler);
System.Console.WriteLine($"Iterable Mapping Contarct Address: {contractAddress}");
System.Console.WriteLine("Deploying the RSK KMS Contract");
// Deploy the RSK Contract
contractHandler = RSKContractHelper.DeployRSKKeyManagmentContract(web3,
transactionReceiptDeployment,
out contractAddress);
System.Console.WriteLine("Trying to set a value in RSK KMS Contract");
return(contractAddress);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return(string.Empty);
}
/// <summary>
/// The AES Key/Value with the Private Key for Contract is for demonstration purpose only
/// Feel free to use it.
/// </summary>
/// <param name="args"></param>
public static void Main(string[] args)
{
string key = "aesKey";
string value = "testing";
string rnsResolvedAddress = GetRnsResolvedAddress("ranjancse.rsk", true);
string nodeUrl = ConfigurationManager.AppSettings["RskTestnetNodeUrl"];
var privateKey = ConfigurationManager.AppSettings["PrivateKey"];
var fromTransferPrivateKey = ConfigurationManager.AppSettings["FromTransferPrivateKey"];
var account = new Nethereum.Web3.Accounts.Account(privateKey);
IGasPriceService gasPriceService = new GasPriceService(nodeUrl);
int gasPrice = gasPriceService.GetRskMinGasPrice();
// Load some RBTC
LoadSomeRBTC(nodeUrl, fromTransferPrivateKey,
account.Address, 0.001m, 0.06m);
Stopwatch stopwatch = new Stopwatch();
System.Console.WriteLine("Trying to pull the RSA certificate from the local store using the Thumbprint");
// Get the certificate by Thumbprint
string thumbPrint = ConfigurationManager.AppSettings["Thumbprint"].ToUpper();
X509Certificate2 filteredCert = X509CertificateHelper.GetRSKCertificate(thumbPrint,
StoreLocation.LocalMachine);
if (filteredCert == null)
{
System.Console.WriteLine($"Unable to find the RSK certificate by Thumbprint: " +
$"{thumbPrint}");
System.Console.ReadLine();
return;
}
// Encrypt Text/Data
var encryptedText = RSAEncryptionHelper.Encrypt(value, filteredCert);
var url = ConfigurationManager.AppSettings["ContractDeploymentUrl"];
Web3 web3 = new Web3(account, url);
// Get the balance
stopwatch.Start();
var weiBalance = AccountHelper.GetBalance(web3, account);
var etherAmount = Web3.Convert.FromWei(weiBalance.Value);
stopwatch.Stop();
System.Console.WriteLine($"Account Balance: {etherAmount}");
System.Console.WriteLine($"Time take to fetch the balance:" +
$" {stopwatch.Elapsed.Seconds} seconds");
// Gas estimated, in wei
System.Console.WriteLine($"Estimated Gas Price: {gasPrice}");
System.Console.WriteLine("Deploying the Iterable Mapping Library");
stopwatch.Restart();
// Deploy Iterable Mapping Library
TransactionReceipt transactionReceiptDeployment;
string contractAddress;
ContractHandler contractHandler;
RSKContractHelper.DeployIterableMappingContract(web3,
out transactionReceiptDeployment,
out contractAddress,
out contractHandler);
stopwatch.Stop();
System.Console.WriteLine($"Iterable Mapping Contarct Address: " +
$"{contractAddress}");
System.Console.WriteLine($"Time taken to deploy the Iterable mapping:" +
$" {stopwatch.Elapsed.Seconds} seconds");
System.Console.WriteLine("Deploying the RSK KMS Contract");
// Deploy the RSK Contract
stopwatch.Restart();
contractHandler = RSKContractHelper.DeployRSKKeyManagmentContract(web3,
transactionReceiptDeployment,
out contractAddress);
stopwatch.Stop();
System.Console.WriteLine($"RSK Contract Address {contractAddress}");
System.Console.WriteLine($"Time taken to deploy the RSK Contract: " +
$"{stopwatch.Elapsed.Seconds} seconds");
System.Console.WriteLine("Trying to set a value in RSK KMS Contract");
/** Function: setItem**/
var setItemRequest = new SetItemFunction
{
Key = key,
Value = encryptedText,
FromAddress = account.Address
};
setItemRequest.GasPrice = new BigInteger(gasPrice * 1.1);
stopwatch.Restart();
var setItemFunctionTxnReceipt = contractHandler
.SendRequestAndWaitForReceiptAsync(setItemRequest)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
stopwatch.Stop();
System.Console.WriteLine($"Time taken to set the KMS Key Item: " +
$"{stopwatch.Elapsed.Seconds} seconds");
System.Console.WriteLine("Trying to get a value from the RSK KMS Contract");
/** Function: getItem**/
var getItemRequest = new GetItemFunction
{
Key = key,
FromAddress = account.Address
};
stopwatch.Restart();
var getItemResponse = contractHandler
.QueryAsync <GetItemFunction, string>(getItemRequest)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
stopwatch.Stop();
System.Console.WriteLine($"Time taken to get the KMS Key Item: " +
$"{stopwatch.Elapsed.Seconds} seconds");
if (!string.IsNullOrEmpty(getItemResponse))
{
var decryptedText = RSAEncryptionHelper.Decrypt(getItemResponse, filteredCert);
System.Console.WriteLine($"Decrypted Text: {decryptedText}");
}
else
{
System.Console.WriteLine("The KMS Response as empty");
}
System.Console.WriteLine("Press any key to exit");
System.Console.ReadLine();
}
