public static bool Verify(PackageDataSigned package, byte[] cer) { if (package == null) { return(false); } if (package.Package == null) { return(false); } if (package.TimeStampCheck > DateTime.Now.ToUniversalTime().AddMinutes(TimeStampPlusMinus) && package.TimeStampCheck < DateTime.Now.ToUniversalTime().AddMinutes(-TimeStampPlusMinus)) { Debug.WriteLine("Timestamp missmatch -+" + TimeStampPlusMinus.ToString() + " minutes"); return(false); } string JSON = package.TimeStampCheck.ToString("s") + "-" + JsonConvert.SerializeObject(package.Package); if (Verify(Encoding.UTF8.GetBytes(JSON), package.Signature, cer) == false) { Debug.WriteLine("Verify failed"); return(false); } return(true); }
public static bool Sign(PackageDataSigned package, string CN) { if (package == null) { return(false); } if (package.Package == null) { return(false); } package.TimeStampCheck = DateTime.Now.ToUniversalTime(); string JSON = package.TimeStampCheck.ToString("s") + "-" + JsonConvert.SerializeObject(package.Package); package.Signature = Sign(Encoding.UTF8.GetBytes(JSON), CN, StoreLocation.LocalMachine); if (package.Signature == null) { return(false); } return(true); }