Star Rail keys are 17 digits, how does it work with this program?

[RealNath]

I believe this should work for Honkai: Star Rail too. I managed to find the keys, the problem is that it contains 17 digits, instead of 16. How do I use this program for Star Rail? I tried separating the keys by 7-8 digits, doesn't work. 8-7 digits don't work too.

[BUnipendix]

I have written the code in my repo
you can review from here

[RealNath]

I have written the code in my repo you can review from here

That's the script for finding keys, right? I do have the keys already, from cri_usm_demuxer/keys.json, but I can't put it in this repo's program because it's 17 digits.

I actually tried to use your repository instead of this for demuxing the USM. I moved the decrypt file to cri_usm_demuxer folder, but I'm not sure where to run the program.

I also wanted to try Iridium-SR, but not sure where to get the packetIds.json and proto folder in the first place. (Do I make my own folder and name it proto? or does it contain files inside?)