About usability. Well, I'm not an expert but runbox.com (with their roundcube interface) or unseen.is let you use gpg keys in a really easy way. They generate (

About usability. Well, I'm not an expert but runbox.com (with their roundcube interface) or unseen.is let you use gpg keys in a really easy way. They generate (or you can import) a pair of keys in the browser so they never have access to them. The only catch is that if you erase your cache or their cookies, you lost your keys and have to import them again. By default, runbox sends your public key as an attachment.