public string Decrypt(string data)
{
byte[] base64StringData;
base64StringData = Convert.FromBase64String(data);
byte[] resultInByte = new byte[] { };
SymmetricEncryption sym = new SymmetricEncryption(new System.Security.Cryptography.RijndaelManaged());
sym.Key = privateKey.GetKey();
resultInByte = sym.Decrypt(base64StringData);
sym.Dispose();
return ASCIIEncoding.ASCII.GetString(resultInByte);
}
