//Using enryption service to encrypt data
public string encryptCreditCard(string creditcardnumber)
{
encrypted_data = "";
encryptdecrypt.ServiceClient service_dec = new encryptdecrypt.ServiceClient();
encrypted_data = service_dec.Encrypt(creditcardnumber);
return(encrypted_data);
}
//Check validity of Credit card by checking if it's already exisiting in the hashmap and also check balance
public bool CheckValidTransaction(string encrypted_data, double amount)
{
encryptdecrypt.ServiceClient service_dec = new encryptdecrypt.ServiceClient();
string decrypted_data = service_dec.Decrypt(encrypted_data);
encrypted_data = "";
foreach (var entry in bank_details)
{
if (entry.Key.Equals(decrypted_data))
{
if (entry.Value > amount)
{
//Console.WriteLine("Sufficient Funds {0}", entry.Value);
bank_details[entry.Key] = entry.Value - amount;
return(true);
}
}
}
return(false);
}
