I'd like to share an app i wrote recently using Phoenix and Vue.js. It's an encrypted end-to-end quick-to-use websocket-chat app, which can be used to share secret messages between users. It uses AES to encrypt JS-generated RSA-2048 public keys shared between users which will be used to encrypt messages for each user separately. I'd love to hear some feedback from more experienced hackers than I am. Please don't bite. :)
technical overview here: http://gladecki.pl/2016/11/23/1op/