Can the contents of an AssetBundle be encrypted?

Hi,

I am new to AssetBundles but can see how they could be very useful for downloading content from my webserver into my game.

But I do not want the content of my assetbundles to be easily modified, and I wanted to ask if the AssetBundle files on the server can be encrypted, and how to decrypt it in the engine at runtime?

Also would using HTTPS be a good way to add layered encryption (or is this easily bypassable)?

Thanks.

 

but i think the load speed it cost a lot of time..

 

how to save asset bundle in encrypted format when build assetbundle is clicked ? I cannot get bytes to encrypt it myself.