How to re-cencrypt

[AngelFireLA]

I can't re-encrypt files it crashes the game

[jeanbmar]

It's impossible. Supercell uses an asymetrical encryption so nobody can recompute the file signature except them.

[AngelFireLA]

and is there a private server that still use an old version that can be played ? or just is there a method to run a local one on my computer (old private server) that I could mod ?