public CryptionHelper(string key, SupportedAlogrithm alogrithm)
{
this.CustomizedKey = key;
this.SelectedAlogrithm = alogrithm;
switch (this.SelectedAlogrithm)
{
case SupportedAlogrithm.AES:
cryptor = new AESCryption(this.CustomizedKey);
break;
case SupportedAlogrithm.RSA:
cryptor = new RSACryption(this.CustomizedKey);
break;
case SupportedAlogrithm.TripleDES:
cryptor = new TripleDESCryption(this.CustomizedKey);
break;
}
}
private void comboAlogrithms_SelectedIndexChanged(object sender, EventArgs e)
{
this._selectedAlogrithm = (SupportedAlogrithm)Enum.Parse(typeof(SupportedAlogrithm), this.comboAlogrithms.SelectedItem.ToString());
if (AlogrithmKeyPair.Keys.Contains(this._selectedAlogrithm))
{
this._isKeyRequired = AlogrithmKeyPair[this._selectedAlogrithm];
}
this.txtKey.Clear();
this.btnImportKey.Enabled = this._isKeyRequired;
this.cbKeyRequired.Checked = this._isKeyRequired;
this.txtKey.ReadOnly = !this._isKeyRequired;
if (this._selectedAlogrithm == SupportedAlogrithm.RSA)
{
string message = string.Empty;
if (this._inputOption == InputOption.eFile)
{
message = string.Format("RSA is not supported yet for File Input!\nPlease try a different alogrithm.");
MessageBox.Show(message, "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
message = string.Format("RSA needs Public/Private keys for Encryption/Decryption.\nDo you want to Generate and Save them?");
DialogResult dialogResult = MessageBox.Show(message, "NOTICE", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes)
{
// generate public and private keys
RSACryption.GenerateRSAKeys(CryptionHelper.PRIVATE_KEY_PATH, CryptionHelper.PUBLIC_KEY_PATH);
message = string.Format("PublicKey.xml and PrivateKey.xml are saved at: \n{0}", Environment.GetFolderPath(Environment.SpecialFolder.Desktop));
MessageBox.Show(message, "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
