Hi SquareWheel. I use Keybase as a "Here's my Public Key and I am who I say I am". For e-mail/Gmail I use Mailvelope it's fairly easy to setup and use. I recommend you take a look at that in regards to e-mail encryption if you don't already have a system. You can see more here: https://www.mailvelope.com/en And here is a presentation of mailvelope from the excellent Hak5 team. https://www.youtube.com/watch?v=hDCjhKcA0IE