private void displayChainVisual_Click(object sender, EventArgs e)
{
//Opens a popup window displaying the chain in pretty format
SimpleReportViewer.ShowDialog(Program.ProjectD.ReadChainPretty(), "Chain data (pretty)", this);
}
public static void Decrypt(string encryptedMessage, string secretKeyPath, string publicKeyPath, bool gui = false, string privatePassWord = "")
{
string plainTextExtracted;
if (privatePassWord == "")
{
if (!gui)
{
Console.Write("Please enter the passphrase of the chosen private key: ");
privatePassWord = Console.ReadLine();
}
else
{
privatePassWord = Prompt.ShowDialog("Enter the password of the chosen secret key", "Password entry", false, false, false);
}
}
// create an instance of the library
PGPLib pgp = new PGPLib();
// decrypt and verify
try
{
SignatureCheckResult signatureCheck =
pgp.DecryptAndVerifyString(encryptedMessage,
new FileInfo(secretKeyPath), //secret key path
privatePassWord, //this is the password of the secret key
new FileInfo(publicKeyPath),
out string plainTextExtract);
plainTextExtracted = plainTextExtract;
// print the results
if (signatureCheck == SignatureCheckResult.SignatureVerified)
{
Console.WriteLine("Signature OK");
if (gui)
{
MessageBox.Show("Signature OK");
}
}
else if (signatureCheck == SignatureCheckResult.SignatureBroken)
{
Console.WriteLine("Signature of the message is either broken or forged");
if (gui)
{
MessageBox.Show("Signature of the message is either broken or forged");
}
}
else if (signatureCheck == SignatureCheckResult.PublicKeyNotMatching)
{
Console.WriteLine("The provided public key doesn't match the signature");
if (gui)
{
MessageBox.Show("The provided public key doesn't match the signature");
}
}
else if (signatureCheck == SignatureCheckResult.NoSignatureFound)
{
Console.WriteLine("This message is not digitally signed");
if (gui)
{
MessageBox.Show("This message is not digitally signed");
}
}
if (!gui)
{
Console.WriteLine("Extracted message: \n" + plainTextExtracted);
}
else
{
SimpleReportViewer.ShowDialog(plainTextExtracted, "Decrypted data", Program.genericGUIForm);
}
}
catch (Exception e)
{
if (e is DidiSoft.Pgp.Exceptions.WrongPrivateKeyException)
{
Console.WriteLine("The chosen private key is either not a private key or not suited to decrypt this message.");
if (gui)
{
MessageBox.Show("The chosen private key is either not a private key or not suited to decrypt this message.");
}
//The supplied private key source is not a private key at all
}
else if (e is DidiSoft.Pgp.Exceptions.WrongPasswordException)
{
Console.WriteLine("The entered passphrase is incorrect, please try again.");
if (!gui)
{
Decrypt(encryptedMessage, secretKeyPath, publicKeyPath);
}
else
{
MessageBox.Show("The entered passphrase is incorrect, please try again.");
}
}
else if (e is DidiSoft.Pgp.Exceptions.WrongPublicKeyException)
{
if (!gui)
{
Console.WriteLine("The chosen public key is either not a public key or not suited to verify this message.");
}
else
{
MessageBox.Show("The chosen public key is either not a public key or not suited to verify this message.");
}
}
else if (e is DidiSoft.Pgp.Exceptions.KeyIsExpiredException)
{
Console.WriteLine("The public key you want to encrypt for is expired and cannot be used.");
if (gui)
{
MessageBox.Show("The public key you want to encrypt for is expired and cannot be used.");
}
//Can be worked around by setting UseExpiredKeys to true
}
else if (e is DidiSoft.Pgp.Exceptions.KeyIsRevokedException)
{
Console.WriteLine("The public key you want to encrypt for appears to be revoked and cannot be used.");
if (gui)
{
MessageBox.Show("The public key you want to encrypt for appears to be revoked and cannot be used.");
}
//Can be worked around by setting UseRevokedKeys to true
}
else if (e is DidiSoft.Pgp.Exceptions.NonPGPDataException)
{
Console.WriteLine("The data you want to decrypt is not encrypted with PGP.");
if (gui)
{
MessageBox.Show("The data you want to decrypt is not encrypted with PGP.");
}
//Can be worked around by setting UseRevokedKeys to true
}
else if (e is IOException)
{
Console.WriteLine("IO Exception has occured, decrypting of unencrypted data is not possible.");
if (gui)
{
MessageBox.Show("IO Exception has occured, decrypting of unencrypted data is not possible.");
}
//Can be worked around by setting UseRevokedKeys to true
}
else
{
throw new ApplicationException("Something unexpected went wrong, contact support and explain your actions in detail and chronological order.");
}
}
}
private void DisplayChainFromGUI(object sender, EventArgs e)
{
// Opens a popup window displaying the entire chain
SimpleReportViewer.ShowDialog(JsonConvert.SerializeObject(Program.ProjectD, Formatting.Indented), "Chain data", this);
}
