public static void openSharedFile(string filePath)
{
BinaryFormatter formatter = new BinaryFormatter();
FileStream streamOfLocalFile = new FileStream(filePath, FileMode.Open, FileAccess.Read);
EncryptedFile file = (EncryptedFile)formatter.Deserialize(streamOfLocalFile);
string senderName = Encoding.UTF8.GetString(file.getSender());
streamOfLocalFile.Close();
var userCertTuple = LogIn.getUserCertificateTuples();
X509Certificate2 senderCertificate = null;
foreach (var x in userCertTuple)
{
if (x.Item1 == senderName)
{
senderCertificate = LogIn.getUsersCertificateByName(senderName);
break;
}
}
if (senderCertificate == null)
{
throw new CryptographicException("Sender's certificate not found");
}
byte[] decryptedFileContent = Decrypt.decryptSharedFile(file, senderCertificate);
string newTempFileName = System.IO.Path.GetTempFileName() + Guid.NewGuid().ToString() + Path.GetExtension(filePath);
File.WriteAllBytes(newTempFileName, decryptedFileContent);
Process fileopener = new Process();
fileopener.StartInfo.FileName = "explorer";
fileopener.StartInfo.Arguments = "\"" + newTempFileName + "\"";
fileopener.Start();
}