//public Functionality() {
// Task.Factory.StartNew(() => RunFunctionality());
//}
public static void RunFunctionality()
{
//Task.Factory.StartNew(() => Receive());
while (true)
{
string message = Console.ReadLine();
string[] messageWords = message.Split(' ');
string messageFirstWord = messageWords[0];
string messageArguments = String.Join(" ", messageWords, 1, messageWords.Count() - 1);
switch (messageFirstWord)
{
case "debugsend":
Client.Send(message);
break;
case "mine":
//do mining
Task.Factory.StartNew(() => Mine());
break;
case "printmine":
//print current mining results
break;
case "stopmine":
//stop mining thread
break;
case "dotransaction":
//transaction protocol:
//"transactionprotocol" +
//scriptSig +
//pubkey +
//arbitrary data
string parametersString = ObjectStringConversion.ObjectToString(Client.ParametersPublic);
Transaction transaction = new Transaction(Client.ScriptSig, Client.PublicKey, parametersString, messageArguments);
Client.Send("transactionprotocol " + transaction);
break;
}
}
}
public static void ProcessTransaction(Transaction transaction)
{
Console.WriteLine("DEBUG: transaction processing started");
UTF8Encoding encoder = new UTF8Encoding();
//decrypt scriptSig with public key and verify it matches transaction.PublicKey
bool success = false;
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(3072)
{
PersistKeyInCsp = false
};
byte[] verifyBytes = encoder.GetBytes(transaction.PublicKey);
byte[] signedBytes = Convert.FromBase64String(transaction.ScriptSig);
try {
RSAParameters parameters = (RSAParameters)ObjectStringConversion.StringToObject(transaction.Parameters);
rsa.ImportParameters(parameters);
SHA512Managed hash = new SHA512Managed();
byte[] hashedBytes = hash.ComputeHash(signedBytes);
success = rsa.VerifyData(verifyBytes, CryptoConfig.MapNameToOID("SHA512"), signedBytes);
Console.WriteLine("DEBUG: success = " + success);
Console.WriteLine("DEBUG: signedBytes = " + BitConverter.ToString(signedBytes));
} catch (CryptographicException e) {
Console.WriteLine("ProcessTransaction():");
Console.WriteLine(e.Message);
}
if (success) //we can be reasonably certain that the sender is who they claim to be
{
Blockchain.GetLastBlock().AddTransaction(transaction);
Console.WriteLine("DEBUG: transaction successful");
//announce
}
Console.WriteLine("DEBUG: transaction happened");
}
