422 lines
17 KiB
C#
422 lines
17 KiB
C#
using System;
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using System.IO;
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using System.IO.Compression;
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using System.Numerics;
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using System.Windows.Forms;
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namespace KRY_0x04
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{
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class LogicHandler
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{
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Dsapls dsapls = new Dsapls();
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Rsa rsapls = new Rsa();
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internal void load_msg(RichTextBox msgbox, TextBox msgpathbox, TextBox msgdetailsbox, Label msgs_differ_label)
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{
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OpenFileDialog dlg = new OpenFileDialog();
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dlg.Title = "pick a msg";
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/* freedom for all */
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dlg.Filter = "message (*.msg)|*.msg|custom (*.*)|*.*";
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if (dlg.ShowDialog() == DialogResult.OK)
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{
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msgbox.Text = File.ReadAllText(dlg.FileName);
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/* hide the label as it's show "on text changed" but since
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* we're just loading a new message, informing us that it
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* changed is not really relevant */
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msgs_differ_label.Visible = false;
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msgpathbox.Text = dlg.FileName;
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string f = dlg.FileName;
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msgdetailsbox.Text = dsapls.get_file_metrics(f);
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}
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}
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internal void save_msg(RichTextBox msgbox)
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{
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if (msgbox.Text == "")
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{
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MessageBox.Show("you've nothing to dump, friend ()");
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return;
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}
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SaveFileDialog saveFileDialog1 = new SaveFileDialog();
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saveFileDialog1.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
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saveFileDialog1.Title = "export msg";
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saveFileDialog1.CheckFileExists = false;
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saveFileDialog1.CheckPathExists = false;
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saveFileDialog1.DefaultExt = "";
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saveFileDialog1.Filter = "msg (*.msg)|*.msg|any file you wish (*.*)|*.*";
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saveFileDialog1.FilterIndex = 2;
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saveFileDialog1.RestoreDirectory = true;
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if (saveFileDialog1.ShowDialog() == DialogResult.OK)
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{
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try
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{
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File.WriteAllText(saveFileDialog1.FileName, msgbox.Text);
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MessageBox.Show($"saved to {saveFileDialog1.FileName}", "gj, file saved!", MessageBoxButtons.OK, MessageBoxIcon.Information);
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}
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catch (Exception ex)
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{
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MessageBox.Show("error: " + ex.ToString(), "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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}
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internal void do_msgs_differ(string msg, string path, Label do_they_differ, TextBox sha256sumbox)
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{
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if (msg != "" && path != "")
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{
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string msg_hash = dsapls.sha256sum_from_string(msg);
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string file_msg_hash = dsapls.sha256sum_from_path(path);
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if (msg_hash.Equals(file_msg_hash))
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{
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do_they_differ.Visible = false;
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sha256sumbox.Text = msg_hash;
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}
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else
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{
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do_they_differ.Visible = true;
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sha256sumbox.Text = msg_hash;
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}
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} else if (msg != "")
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{
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do_they_differ.Visible = false;
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string msg_hash = dsapls.sha256sum_from_string(msg);
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sha256sumbox.Text = msg_hash;
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} else if (msg == "")
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{
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do_they_differ.Visible = false;
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string msg_hash = dsapls.sha256sum_from_string(msg);
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sha256sumbox.Text = msg_hash;
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}
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}
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internal void load_privkey(RichTextBox privkeybox, TextBox privkeypathbox)
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{
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OpenFileDialog dlg = new OpenFileDialog();
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dlg.Title = "pick a privkey";
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/* freedom for all */
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dlg.Filter = "private key (*.pri)|*.pri|custom (*.*)|*.*";
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if (dlg.ShowDialog() == DialogResult.OK)
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{
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privkeybox.Text = File.ReadAllText(dlg.FileName);
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privkeypathbox.Text = dlg.FileName;
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}
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}
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internal void load_pubkey(RichTextBox pubkeybox, TextBox pubkeypathbox)
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{
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OpenFileDialog dlg = new OpenFileDialog();
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dlg.Title = "pick a pubkey";
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/* freedom for all */
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dlg.Filter = "public key (*.pub)|*.pub|custom (*.*)|*.*";
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dlg.CheckFileExists = false;
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dlg.CheckPathExists = false;
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if (dlg.ShowDialog() == DialogResult.OK)
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{
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pubkeybox.Text = File.ReadAllText(dlg.FileName);
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pubkeypathbox.Text = dlg.FileName;
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}
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}
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internal void do_zip(RichTextBox msgbox, TextBox msgpathbox, Label msgs_differ_label)
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{
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if (msgpathbox.Text == "")
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{
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MessageBox.Show("load a msg file first, please", "oh hey");
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return;
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}
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else if (msgs_differ_label.Visible == true)
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{
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MessageBox.Show("msg changed.\nsave changes first, please", "oh hey");
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return;
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}
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MessageBox.Show("you're going to pick a sign file and a path where the final zip containing the signature and message will be placed.", "info", MessageBoxButtons.OK, MessageBoxIcon.Information);
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string sign_path = "";
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OpenFileDialog dlg_sign = new OpenFileDialog();
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dlg_sign.Title = "pick a .sign file";
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dlg_sign.CheckFileExists = false;
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dlg_sign.CheckPathExists = false;
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dlg_sign.DefaultExt = "";
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dlg_sign.Filter = "sign file (*.sign)|*.sign|custom (*.*)|*.*";
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dlg_sign.FilterIndex = 1;
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dlg_sign.RestoreDirectory = true;
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DialogResult ds = dlg_sign.ShowDialog();
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if (ds == DialogResult.OK)
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{
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sign_path = dlg_sign.FileName;
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}
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else if (ds == DialogResult.Cancel)
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{
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MessageBox.Show("error: you have to choose a signature file to proceed", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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return;
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}
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FolderBrowserDialog dlg = new FolderBrowserDialog();
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dlg.ShowNewFolderButton = true;
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dlg.Description = "choose a folder where the zip will be placed";
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DialogResult d = dlg.ShowDialog();
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if (d == DialogResult.OK)
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{
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string pathTo_dirToZip = dlg.SelectedPath;
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/* the way we're handling this, it needs to be our workfolder,
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* really, but at the same time must not be touched, so the way
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* to go is to create another, disposable directory inside there */
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pathTo_dirToZip += Path.DirectorySeparatorChar + "disposable_workdir_pls";
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Directory.CreateDirectory(pathTo_dirToZip);
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string path_to_msg = msgpathbox.Text;
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string msg_filename = Path.GetFileName(path_to_msg);
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string sign_filename = Path.GetFileName(sign_path);
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try
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{
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File.WriteAllText(pathTo_dirToZip + Path.DirectorySeparatorChar + msg_filename, msgbox.Text);
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File.WriteAllText(pathTo_dirToZip + Path.DirectorySeparatorChar + sign_filename, msgbox.Text);
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}
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catch (Exception e)
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{
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MessageBox.Show("error: " + e.ToString(), "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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try
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{
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string filename = Path.Combine(pathTo_dirToZip + Path.DirectorySeparatorChar + ".." + Path.DirectorySeparatorChar, "zipfile.zip");
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if (File.Exists(filename))
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{
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MessageBox.Show($"file exists: {filename}\ndeleting", "ayy");
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File.Delete(filename);
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}
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/* 0 for optimal compression, false for not including base dir */
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ZipFile.CreateFromDirectory(pathTo_dirToZip, filename, 0, false);
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MessageBox.Show("great success!", "gj, zip created");
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}
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catch (IOException exception)
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{
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MessageBox.Show("error: " + exception.ToString(), "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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Directory.Delete(pathTo_dirToZip, true);
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}
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else if (d == DialogResult.Cancel)
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{
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MessageBox.Show("error: you have to choose a path where the final zip will be placed", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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return;
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}
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}
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internal void do_unzip()
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{
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OpenFileDialog dlg = new OpenFileDialog();
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dlg.Title = "choose a zip file to unzip";
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dlg.Filter = "zip (*.zip)|*.zip|custom (*.*)|*.*";
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if (dlg.ShowDialog() == DialogResult.OK)
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{
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string zipfile = dlg.FileName;
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FolderBrowserDialog dlg_folder = new FolderBrowserDialog();
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dlg_folder.Description = "select folder to unzip the zip to yeeeaaah";
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DialogResult dr = dlg_folder.ShowDialog();
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if (dr == DialogResult.OK)
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{
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string pathTo_UnzippedDir = dlg_folder.SelectedPath + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(zipfile);
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if (Directory.Exists(pathTo_UnzippedDir))
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{
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pathTo_UnzippedDir = pathTo_UnzippedDir + "-NEW-" + DateTime.Now.ToString("yyyyMMddTHHmmss");
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MessageBox.Show("dir exists, created a new one with the same name + date", "just so you know");
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Directory.CreateDirectory(pathTo_UnzippedDir);
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}
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try
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{
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ZipFile.ExtractToDirectory(zipfile, pathTo_UnzippedDir);
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MessageBox.Show("great success!", "gj, archive unzipped");
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}
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catch (IOException exc)
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{
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MessageBox.Show("error: " + exc.ToString(), "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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}
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}
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internal void do_sign(RichTextBox msgbox, RichTextBox privkeybox, RichTextBox pubkeybox, TextBox sha256sumbox)
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{
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if (msgbox.Text == "" || privkeybox.Text == "" || pubkeybox.Text == "" || sha256sumbox.Text == "")
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{
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MessageBox.Show("please, fill in all of the required fields");
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return;
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}
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SaveFileDialog saveFileDialog1 = new SaveFileDialog();
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saveFileDialog1.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
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string[] keys = privkeybox.Text.Split(' ');
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MessageBox.Show("we good?");
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Console.WriteLine(BigInteger.Parse(keys[1]));
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Console.WriteLine(BigInteger.Parse(keys[0]));
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string signed = Convert.ToString(BigInteger.ModPow(dsapls.return_bigint_representation_of_message(sha256sumbox.Text), BigInteger.Parse(keys[1]), BigInteger.Parse(keys[0])));
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saveFileDialog1.Title = ".sign";
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saveFileDialog1.CheckFileExists = false;
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saveFileDialog1.CheckPathExists = false;
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saveFileDialog1.DefaultExt = "";
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saveFileDialog1.Filter = "sign file (*.sign)|*.sign|custom (*.*)|*.*";
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saveFileDialog1.FilterIndex = 1;
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saveFileDialog1.RestoreDirectory = true;
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if (saveFileDialog1.ShowDialog() == DialogResult.OK)
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{
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try
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{
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File.WriteAllText(saveFileDialog1.FileName, signed);
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MessageBox.Show($"saved to {saveFileDialog1.FileName}", "gj, file saved!", MessageBoxButtons.OK, MessageBoxIcon.Information);
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}
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catch (Exception ex)
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{
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MessageBox.Show("error: " + ex.ToString(), "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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}
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internal void do_verify_wrapper(RichTextBox privkeybox, RichTextBox pubkeybox)
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{
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if (privkeybox.Text != "" && pubkeybox.Text != "")
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{
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do_verify(pubkeybox);
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}
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else
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{
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MessageBox.Show("error: privkey, pubkey or both are not set. load your keys before proceeding.", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void do_verify(RichTextBox pubkeybox)
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{
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string[] keys = pubkeybox.Text.Split(' ');
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string verified = "";
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string orig_message = "";
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bool proceed = true;
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OpenFileDialog dlg_sign = new OpenFileDialog();
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dlg_sign.Title = "pick a .sign file";
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/* freedom for all */
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dlg_sign.Filter = "sign file (*.sign)|*.sign|custom (*.*)|*.*";
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MessageBox.Show("you'll be choosing a signature and then a message file to verify", "info", MessageBoxButtons.OK, MessageBoxIcon.Information);
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DialogResult d = dlg_sign.ShowDialog();
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if (d == DialogResult.OK)
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{
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try
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{
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verified = dsapls.return_string_representation_of_bigint(BigInteger.ModPow(BigInteger.Parse(File.ReadAllText(dlg_sign.FileName)), BigInteger.Parse(keys[1]), BigInteger.Parse(keys[0])));
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}
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catch (Exception excep)
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{
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MessageBox.Show("error: " + excep.ToString(), "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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} else if (d == DialogResult.Cancel)
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{
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proceed = false;
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MessageBox.Show("error: you have to choose a signature file to proceed", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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if (proceed)
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{
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OpenFileDialog dlg_msg = new OpenFileDialog();
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dlg_msg.Title = "pick a .msg file";
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/* freedom for all */
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dlg_msg.Filter = "msg file (*.msg)|*.msg|custom (*.*)|*.*";
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DialogResult dr = dlg_msg.ShowDialog();
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if (dr == DialogResult.OK)
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{
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try
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{
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orig_message = dlg_msg.FileName;
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}
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catch (Exception excep)
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{
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MessageBox.Show("error: " + excep.ToString(), "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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else if (dr == DialogResult.Cancel)
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{
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proceed = false;
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MessageBox.Show("error: you have to choose a msg file to proceed", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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if (proceed)
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{
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if (dsapls.sha256sum_from_path(orig_message) == verified)
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{
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MessageBox.Show($"{dsapls.sha256sum_from_path(orig_message)} == {verified}", "we good, signatures match!");
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}
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else
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{
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Console.WriteLine($"orig message: {orig_message}");
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Console.WriteLine($"verif message: {verified}");
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MessageBox.Show($"something is seriously wrong\n{dsapls.sha256sum_from_path(orig_message)} != {verified}", "checksums differ!", MessageBoxButtons.OK, MessageBoxIcon.Warning);
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}
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}
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}
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}
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internal void threads_tb_check(TextBox tb, Label threads_warning)
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{
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rsapls.tb_check(tb, threads_warning);
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}
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internal void keysize_handler(Button keysizebutton)
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{
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rsapls.keysize_handler(keysizebutton);
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}
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internal void genprimes_handler(TextBox threadsbox, Label threads_warning, Label keygen_running)
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{
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MessageBox.Show("in the next step, you will be choosing path for saving the key pair", "info", MessageBoxButtons.OK, MessageBoxIcon.Information);
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string path = "";
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FolderBrowserDialog dlg = new FolderBrowserDialog();
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dlg.Description = "pick a location for your new keypair";
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dlg.ShowNewFolderButton = true;
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DialogResult dr = dlg.ShowDialog();
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if (dr == DialogResult.OK)
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{
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try
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{
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path = dlg.SelectedPath;
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}
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catch (Exception excep)
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{
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MessageBox.Show("error: " + excep.ToString(), "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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else if (dr == DialogResult.Cancel)
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{
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MessageBox.Show("error: you have to choose a path", "this didn't work...", MessageBoxButtons.OK, MessageBoxIcon.Error);
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return;
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}
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keygen_running.Visible = true;
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rsapls.genprimes_handler(threadsbox, threads_warning, path);
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keygen_running.Visible = false;
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}
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}
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}
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