Help/Support Reverse Enginner iOS application!

[niro 1.2k 9 9.1.0]

Hello, I would like to reverse beginner some functions in an iOS application and then rewrite them in python.

Would this be possible or should I attempt to reverse an android application (which I have %0 knowledge with)

 

to sum it all up. An app that I am trying to exploit generates a key / token and I need to figure out a way on how to generate that myself programmatically. Any advice is appreciated!

thank you

[Ted2 39.2k iPhone 13 Pro 16.0 Donor]

I'm not 100% what you exactly mean, but if you mean keys that gets loaded in app as protection I do know somethint.

I'm not sure about ios, but some games/app on android got CRC32 protection, this protection has 2 keys. 1. A key which is loaded when app is not modified, so you can play game.

when app is modified, it will load another key which will make the game crash.

The right key can be figured out by writing a program, but I'm not sure how this works.

[niro 1.2k 9 9.1.0]

15 hours ago, Ted2 said:

I'm not 100% what you exactly mean, but if you mean keys that gets loaded in app as protection I do know somethint.

I'm not sure about ios, but some games/app on android got CRC32 protection, this protection has 2 keys. 1. A key which is loaded when app is not modified, so you can play game.

when app is modified, it will load another key which will make the game crash.

The right key can be figured out by writing a program, but I'm not sure how this works.

nah thats not what i mean. there are some functions in this app that generate a signature and i want to reverse it. so i can create the correct signatures without needing the application. thanks for the reply though

[i0s_tweak3r 12.4k iPhone X 13.5]

Are you familiar with IDA? Maybe this guide can help you...

https://doc.lagout.org/security/Reverse_Engineering_for_Beginners-en-A5.pdf