public byte[] MakeSignedTransaction(TxIn[] ins, byte[] to, Account from, int value)
{
List <TxOut> outs = new List <TxOut>();
int total = 0;
foreach (UtxoOutput utxoOut in userUtxo.UtxoOutputs)
{
Console.WriteLine("UtxoOut: " + utxoOut);
if (utxoOut != null && !utxoOut.spent)
{
total += utxoOut.value;
}
}
if (total < value)
{
Console.WriteLine("Insufficient balance");
return(null);
}
int change = total - value;
outs.Add(new TxOut(value, from.publicKey, Convert.ToBase64String(to)));
outs.Add(new TxOut(change, from.publicKey, Convert.ToBase64String(from.address)));
Tx tx = new Tx();
tx.TxIns.AddRange(ins);
tx.TxOuts.AddRange(outs);
tx.getHash();
return(tx.SignTx(from.key));
}
//Generate signed transaction
public byte[] MakeSignedTransaction(TxIn[] ins, byte[] to, Account from, int value)
{
List <TxOut> outs = new List <TxOut>();
int total = 0;
//Get aggregate balance of user
foreach (TxIn txIn in ins)
{
UtxoOutput utxoOut = UtxoTable.LookUpEntry(HexHelper.ByteArrayToString(txIn.hash), txIn.index, from.address);
Console.WriteLine("UtxoOut: " + utxoOut);
if (utxoOut != null && !utxoOut.spent)
{
total += utxoOut.value;
}
}
//If the value of proposed transaction is bigger than total balance
//Return null
if (total < value)
{
Console.WriteLine("Insufficient balance");
return(null);
}
int change = total - value;
//Add TxOuts to Transaction
outs.Add(new TxOut(value, from.publicKey, Convert.ToBase64String(to)));
outs.Add(new TxOut(change, from.publicKey, Convert.ToBase64String(from.address)));
Tx tx = new Tx();
tx.TxIns.AddRange(ins);
tx.TxOuts.AddRange(outs);
//Get the hash of Transaction
tx.getHash();
return(tx.SignTx(from.key));
}