encrypt memory before suspending to ram

Hi all!

This is my first post here.

As stated in the subject, I think encrypting memory before suspending to ram and asking for a password on resume would be quite a nice feature for anyone who encrypts their hard drive.

So, has anybody done this already, or is currently working on it?

I could possibly do it myself, but at the momment I have zero experience with kernel programming.
Any help?

Thanks in advance!
Bogdan