public string DecryptPassword(string encryptedPsw)
{
//DecryptData throws if the wrong password is used.
var wrapper = new Encrypter(EncryptKey);
try
{
var plainPsw = wrapper.DecryptData(encryptedPsw);
return(plainPsw);
}
catch (Exception ex)
{
throw new Exception($"Error during the decryption: {ex.Message}");
}
}
private void SaveSettingsButton_Click(object sender, EventArgs e)
{
if (!validateUsername(SettingsUsernameInput.Text))
{
SettingsFeedback.Text = "Invalid username, please change the name before saving!";
return;
}
if (File.Exists(@"" + filePath + SettingsUsernameInput.Text.ToLower() + ".txt") && SettingsUsernameInput.Text.ToLower() != username)
{
SettingsFeedback.Text = "This username is already in use!";
return;
}
if ((SettingsNewPasswordInput.Text != "" && SettingsNewPasswordInput.ForeColor == Color.White) || (SettingsConfirmPasswordInput.Text != "" && SettingsConfirmPasswordInput.ForeColor == Color.White))
{
// Change username and password
if (Encrypter.SHA256(SettingsCurrentPasswordInput.Text) != password)
{
SettingsFeedback.Text = "Access denied!";
return;
}
if (!validatePassword(SettingsNewPasswordInput.Text, SettingsConfirmPasswordInput.Text))
{
SettingsFeedback.Text = "Invalid password, please make sure password and confirm password match and they are both atleast 8 characters long and contains both capital and lower letter!";
return;
}
if (SettingsUsernameInput.Text.ToLower() != username)
{
if (File.Exists(@"" + filePath + username + ".txt"))
{
deleteFile(username);
}
username = SettingsUsernameInput.Text.ToLower();
}
if (accountData.Any())
{
List <KeyValuePair <string, string[]> > tempData = Encrypter.DecryptData(accountData, encryptionKey);
encryptionKey = SettingsNewPasswordInput.Text;
password = Encrypter.SHA256(SettingsNewPasswordInput.Text);
accountData = Encrypter.EncryptData(tempData, encryptionKey);
}
else
{
encryptionKey = SettingsNewPasswordInput.Text;
password = Encrypter.SHA256(SettingsNewPasswordInput.Text);
}
SaveData();
}
else
{
// Change only username
if (SettingsUsernameInput.Text.ToLower() != username)
{
if (File.Exists(@"" + filePath + username + ".txt"))
{
deleteFile(username);
}
username = SettingsUsernameInput.Text.ToLower();
SaveData();
}
}
SettingsPanel.Visible = false;
AddAccountButton.Enabled = true;
SettingsButton.Enabled = true;
LogoutButton.Enabled = true;
AccountsPanel.Visible = true;
}