[Jprogramming] encrypting a script

[Ian Clark]

Just today my imagination seems to have deserted me...

Has anyone got a neat well-tried method of saving/reloading a J script
in encrypted form? Just to hide lists of sensitive personal data from
casual prying. It doesn't have to be proof against someone who knows J
and knows what the script does.

I envisage something like this:

'mypwd' cryptsave '~user/myscript.ijs'
'mypwd' cryptload '~user/myscript.ijs'