Find UE encryption key for Switch game

[Grimm]

Anyone knows how to load main file extracted from Switch game exefs to IDA in order to find the Unreal Engine encryption key? I want to use it to unpack the UE .pak files to create a translation mod for the game.

I see a couple threads on it but none that explain how to correctly load main to IDA.

Any help?

 

[Hayato213]

https://gbatemp.net/threads/how-to-extract-decryption-key-for-unreal-engine-4-pak-files.574916/

You can look at this, but not sure if it would help you or not.

 

[Grimm]

Thanks, thats the tutorial I have been following but I cant seem to get IDA to find anything with the search it mentions. In the tutorial he mentions 'properly loading the main file into IDA.' It sounds like there may be some other steps im missing...

 

[DobleSG]

Thanks, thats the tutorial I have been following but I cant seem to get IDA to find anything with the search it mentions. In the tutorial he mentions 'properly loading the main file into IDA.' It sounds like there may be some other steps im missing...

Did you ever figure this out? Im also stuck. unfortunate how little info there is and how muddy the info that exists is

 

[aoimatsuri]

Im stuck at finding the AES key for DioField.
https://blog.jamie.holdings/2019/03/23/reverse-engineering-aes-keys-from-unreal-engine-4-projects/

Flip UE.
Maybe I'll use VulkanRipper