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);
}