Just fyi on the native front our team recently started work on npm package webcrypto-crypt in conjunction with some experiments utilizing IPFS hypermedia and modern web browsers. Maybe others will find it useful: https://www.npmjs.com/package/webcrypto-crypt
Browsers have a native crypto API? Last I heard, websites requiring client side crypto used libraries written by other people. There's even a Node.js module for crypto.[0]
