Adding Your Public Key to Your Facebook Profile
To display your public key on your profile page, you need to update your contact information. From Facebook’s top menu bar, click on your face to get to your profile. Then click on Update Info.
Moving on. Click on Contact and Basic Info for the next step.
Now click + Add a public key.
Paste your public key into the field provided, if it isn’t already there. Choose who you want to be able to see your key, and click Save Changes.
That’s it! After this, anybody you allow will be able to view and download your OpenPGP public key for use in emailing you.
Now for the Gotcha
Here’s a problem that may crop up if you turn on encrypted notifications from Facebook. Assuming you’re using Keychain to store your passwords, Safari will ask if you want to update your password. You probably should, but be aware of what that Keychain Access entry will look like afterwards. Here’s an example.
I’ve blurred out some data there, but it’s my public key. You can see there is no way to access my password to view it or change it.
To get around the problem, I had to highlight the entire contents of my public key, cut it, and then attempt to close the window. Keychain Access asked if I wanted to save my changes, and it was only when I said no that I was able to access the password field in the window.
Your experience might be similar, so if you can’t see the password field, follow my advice from above and you should be okay.
Facebook Could Become the New Web of Trust
Almost everybody uses Facebook these days. It’s definitely conceivable that the social media network could become the new Web of Trust for PGP, if people start using this feature more. Of course, nobody I talked to about it even knew it was there, so that might not bode well for its prospects. However, if enough of us get the word out, it certainly could become a handy repository of public keys.