public static bool Verify(FileUploadDataSigned FUD, byte[] cer) { if (FUD == null) { return(false); } if (FUD.Data == null) { return(false); } if (FUD.Data.TimeStampCheck > DateTime.Now.ToUniversalTime().AddMinutes(TimeStampPlusMinus) && FUD.Data.TimeStampCheck < DateTime.Now.ToUniversalTime().AddMinutes(-TimeStampPlusMinus)) { Debug.WriteLine("Timestamp missmatch -+" + TimeStampPlusMinus.ToString() + " minutes"); return(false); } string JSON = JsonConvert.SerializeObject(FUD.Data, Formatting.None); if (Verify(Encoding.UTF8.GetBytes(JSON), FUD.Signature, cer) == false) { Debug.WriteLine("Verify failed"); return(false); } return(true); }
public static bool Sign(FileUploadDataSigned data, string CN) { if (data == null) { return(false); } if (data.Data == null) { return(false); } data.Data.TimeStampCheck = DateTime.Now.ToUniversalTime(); string JSON = JsonConvert.SerializeObject(data.Data, Formatting.None); data.Signature = Sign(Encoding.UTF8.GetBytes(JSON), CN, StoreLocation.LocalMachine); if (data.Signature == null) { return(false); } return(true); }