Website, Keybase, Apr 15, 2015
Commentary by Stephen Downes

OK, honestly, I don't understand all the details, but I think this - or something like this - is pretty important. Keybase is a website where you can "get a public key, safely, starting just with someone's social media username(s)." I used it to create my own public key and associate it with my accounts on Twitter and Github. So why is this useful? If someone wanted to send me an encrypted message, they could get the public key associated with my twitter account, use it to encrypt it, and send it to me; only I would be able to read it. You can also so you can request my key, get my proofs, and verify my identity in any software. It also allows me to digitally sign messages and other document, so you know I am the author of them.

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