ios-class-guard
brew install ios-class-guard
v0.8
GPL-2.0-or-later
Objective-C obfuscator for Mach-O executables
2
30-day installs · #13540
9
90-day · #12282
46
365-day · #11289
1.7k
★ GitHub stars · updated 6y ago
Links
- https://github.com/Polidea/ios-class-guard/
- GitHub: Polidea/ios-class-guard
- Brew formula source: Formula/i/ios-class-guard.rb
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"github_readme_excerpt": "---\n\n__This repository is no longer maintained. Issue reports and pull requests will not be attended.__\n\n---\n\niOS Class Guard\n=========\n\niOS-Class-Guard is a command-line utility for obfuscating Objective-C class, protocol, property and method names. It was made as an extension for [class-dump](https://github.com/nygard/class-dump). The utility generates a symbol table which is then included during compilation. It effectively hides most of class, protocol, method, property and i-var names.\n\n**iOS Class Guard itself is not the silver bullet for security of your application. However, it will definitiely make your application harder to read by an attacker.**\n\nRead the official announcement at [Polidea Blog](http://www.polidea.com/#!heartbeat/blog/Protecting_iOS_Applications)\n\nVersion\n-----------\n0.8\n\nDo I need It?\n-----------\nThis utility makes code analyzing and runtime inspection more difficult, which can be referred to as a simple/basic method of obfuscation. You may ask yourself why it is needed; due to Objective-C architecture any dissection of iOS applications is rather simple. You may want to check out the following links:\n\n* http://www.infointox.net/?p=123\n* http://www.cycript.org/\n* http://resources.infosecinstitute.com/ios-application-security-part-2-getting-class-information-of-ios-apps/\n* http://timourrashed.com/decrypting-ios-app/\n\nHow does it work?\n----------\nThe utility works on the compiled version of an application. It reads the Objective-C portion of Mach-O object files. It parses all classes, properties, methods and i-vars defined in that file adding all symbols to the list. Then it reads all dependent frameworks doing the same (parsing Objective-C code structure), but now adding symbols to a forbidden list. Then all symbols from your executable that aren\u0027t in the forbidden list are obfuscated. For each symbol a random identifier consisting of letters and digits is generated. Every time you do obfuscation, a unique symbol map is generated. The genera",
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