Can I easily have an encrypted home in WSL?

As a long-term Linux user, I tried running Ubuntu under the Windows Subsystem for Linux. I works!

I have tried to setup ecryptfs, but this fails complaining that kernel module is missing. Here I don't know enough about WSL, but it appears to come with a custom kernel.

Can I essily encrypt WSL? If Luks is the answer, how do I enter the passphrase? The boot process is hidden.