On: Philip Zimmermann's fears for privacy

Oops! Changed the server config a while back but forgot to update the link in the readme. Try it now. (The correct link is https://sc4.us/sc4 )

That works, thanks. As far as I can see, there's not much glue code between TweetNaCl and the browser. Have you thought of writing/porting this to something like Python? Making it a command-line utility or a library might make adoption easier.

Yes, that's definitely coming. If you're interested, here is the precursor to SC4, written in C:

https://github.com/rongarret/clmm