NSBundle+OBCodeSigningInfo

A category on NSBundle that adds method to check an app bundle's code signing and sandboxing state.

Written by Ole Begemann, February 2012.

For more info, see the corresponding blog post: Checking Code Signing and Sandboxing Status in Code.

WARNING

Please do not use this code in your apps. It was just a quick experiment and is neither tested nor secure.

Usage

1. Add the files NSBundle+OBCodeSigningInfo.h and NSBundle+OBCodeSigningInfo.m to your Xcode project.

2. #import "NSBundle+OBCodeSigningInfo.h"

3. For a given NSBundle, call one or more of these methods to get information about its code signing state:

    - (BOOL)ob_comesFromAppStore;
    - (BOOL)ob_isSandboxed;
    - (OBCodeSignState)ob_codeSignState;