In the following zip file you will find 3 files:
The first file is a text encryption plugin I quickly put together for you (TextEncryption.dll).
This plugin introduces 2 commands to ubot:
Both functions take 2 parameters. The first parameter is a secret key. The second parameter is text to be encrypted/decrypted. The functions return the encrypted/decrypted text.
Using this plugin you can encrypt your account info/proxy lists on your server, and then download and decrypt them in your bot, or encrypt the config files of your bot, or other things. I've also included 2 sample Ubot scripts showing how to do this.
Of course you will need some sort of Ubot security solution to encrypt your bots, and prevent them from being decompiled and having their encryption keys stolen. UbotLocker can do this