public TransactionOutput(AsymmetricKeyParameter receiver, float amount, string parentTransactionId)
{
this.Receiver = receiver;
this.Amount = amount;
this.ParentTransactionId = parentTransactionId;
this.Id = SecurityUtil.ApplySha256(SecurityUtil.GetPublicKeyBase64(receiver) + amount.ToString() + parentTransactionId);
}
private string CalculateTransactionHash()
{
Sequence++;
SHA256 sha256 = SHA256.Create();
byte[] inputBytes = Encoding.ASCII.GetBytes(
SecurityUtil.GetPublicKeyBase64(Sender) +
SecurityUtil.GetPublicKeyBase64(Receiver) +
Amount.ToString() +
Sequence);
byte[] outputBytes = sha256.ComputeHash(inputBytes);
return(Convert.ToBase64String(outputBytes));
}
public bool VerifiySignature()
{
string data = SecurityUtil.GetPublicKeyBase64(Sender) + SecurityUtil.GetPublicKeyBase64(Receiver) + Amount.ToString();
return(SecurityUtil.Verify(Sender, data, Signature));
}
public void GenerateSignature(AsymmetricKeyParameter privateKey)
{
string data = SecurityUtil.GetPublicKeyBase64(Sender) + SecurityUtil.GetPublicKeyBase64(Receiver) + Amount.ToString();
Signature = SecurityUtil.Sign(privateKey, data);
}
