Write keys to file

Program.cs

@@ -12,10 +12,17 @@ public class Program {
 
         public static int Main(string[] args) {
             var path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86), @"Motorola\MOTOTRBO CPS\cpservices.dll");
-            if (args.Length > 0) {
+            if (args.Length >= 2) {
                 path = args[0];
             }
 
+            var output = "codeplug.cfg";
+            if (args.Length >= 1) {
+                output = args[args.Length - 1];
+            }
+
+            var certificate = File.ReadAllBytes(Path.GetFullPath(Path.Combine(path, @"..\resources\mototrbocps")));
+
             var module = ModuleDefMD.Load(path);
             foreach (var type in module.Types) {
                 var constructor = type.FindStaticConstructor();
@@ -32,18 +39,28 @@ public static int Main(string[] args) {
                 if (!loadedStrings.Contains("mototrbocps")) {
                     continue;
                 }
-                Console.WriteLine("Prepare your environment:");
-                Console.WriteLine("export CTB_KEY='{0}='", loadedStrings.Find(s => s.Length == 43));
-                Console.WriteLine("export CTB_IV='{0}=='", loadedStrings.Find(s => s.Length == 22));
-                Console.WriteLine();
-                var encodedPassword = loadedStrings.FindAll(s => s.Length == 22)[loadedStrings.Count(s => s.Length == 43)] + "==";
-                Console.WriteLine("Extract the private key (enter '{0}' when asked for the password):", Encoding.ASCII.GetString(Convert.FromBase64String(encodedPassword)));
-                Console.WriteLine("openssl pkcs12 -in '{0}' -nocerts -nodes -out yourkey.pem", Path.GetFullPath(Path.Combine(path, @"..\resources\mototrbocps")));
+                using (var writer = new StreamWriter(output))
+                {
+                    writer.WriteLine("[codeplug]");
+                    writer.WriteLine("key = {0}=", loadedStrings.Find(s => s.Length == 43));
+                    writer.WriteLine("iv = {0}==", loadedStrings.Find(s => s.Length == 22));
+                    writer.WriteLine("signing_password = {0}==", loadedStrings.FindAll(s => s.Length == 22)[loadedStrings.Count(s => s.Length == 43)]);
+                    var certificateLines = Split(Convert.ToBase64String(certificate), 64);
+                    writer.WriteLine("signing_key = {0}", String.Join(Environment.NewLine + "    ", certificateLines));
+                }
+                Console.WriteLine("Extracted keys to {0}", output);
                 return 0;
             }
 
             Console.Error.WriteLine("Could not find keys.");
             return 1;
         }
+
+        private static IEnumerable<string> Split(string text, int chunkSize) {
+            for (int offset = 0; offset < text.Length; offset += chunkSize) {
+                int size = Math.Min(chunkSize, text.Length - offset);
+                yield return text.Substring(offset, size);
+            }
+        }
     }
 }

README.md

@@ -11,12 +11,10 @@ Usage
 -----
 
  * Download the pre-built binaries (link above) or build the project with MSBuild
- * Download [OpenSSL](https://www.openssl.org/) (e.g. from [indy.fulgan.com](https://indy.fulgan.com/SSL/)) and extract it into the project folder
  * Open a terminal (press <kbd>Win</kbd>+<kbd>R</kbd> and enter `cmd`)
  * Navigate to the project folder (e.g. `cd C:\Users\Example\Downloads\codeplug-prepare`)
  * Start the tool by entering `CodeplugPrepare`
- * Execute the command involving `openssl`
- * All done! You can now use the file `yourkey.pem` and the values of `CTB_KEY` and `CTB_IV` to [read and write codeplugs][0].
+ * All done! You can now use the file `codeplug.cfg` to [read and write codeplugs][0].
 
 
 [0]: https://github.com/george-hopkins/codeplug