Hey, my name is Chloe, and a crew of us made a program that Encrypts your 3D assets. It's called D3CRYPT3D. We just launched the beta today and would love for you to register, test it out, and give us any feedback you may have. We just want to make an amazing product and finally get 3D artists the credit they deserve.
Here is the link to download the software- http://www.d3crypt3d.net/download.html
Note: D3CRYPT3D is only available for PC right now, but will be available for Mac very soon!