private void encodeButton_Click(object sender, EventArgs e)
{
// Variables
X509Store store = null;
X509Certificate2 cert = null;
FileStream inFile = null;
FileStream outFile = null;
CMS cms = null;
try
{
// Get user cert
store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
store.Open(OpenFlags.MaxAllowed);
cert = store.Certificates.Find(X509FindType.FindBySubjectName, subjectTextBox.Text, true)[0];
// Open file with data to encode
inFile = File.Open(originalTextBox.Text, FileMode.Open);
// Create file for encoded data
outFile = File.Create(encodedTextBox.Text);
// Encode data
cms = new CMS();
cms.Encode(cert, inFile, outFile);
MessageBox.Show("Sucess!!!");
}
catch (Exception ex)
{
// Show errors
if (ex.InnerException != null)
{
MessageBox.Show(ex.Message + "\n" + ex.InnerException.Message);
}
else
{
MessageBox.Show(ex.Message);
}
}
finally
{
// Clean up
if (store != null)
{
store.Close();
}
if (inFile != null)
{
inFile.Close();
}
if (outFile != null)
{
outFile.Close();
}
}
}
private void decodeButton_Click(object sender, EventArgs e)
{
// Variables
FileStream inFile = null;
FileStream outFile = null;
CMS cms = null;
try
{
// Open file with data to decode
inFile = File.Open(encodedTextBox.Text, FileMode.Open);
// Create file for encoded data
outFile = File.Create(decodedTextBox.Text);
// Decode data
cms = new CMS();
cms.Decode(inFile, outFile);
MessageBox.Show("Sucess!!!");
}
catch (Exception ex)
{
if (ex.InnerException != null)
{
MessageBox.Show(ex.Message + "\n" + ex.InnerException.Message);
}
else
{
MessageBox.Show(ex.Message);
}
}
finally
{
// Clean up
if (inFile != null)
{
inFile.Close();
}
if (outFile != null)
{
outFile.Close();
}
}
}
