PeerAuth

Pairwise Authentication of Humans - Schneier on Security

Here’s an easy system for two humans to remotely authenticate to each other, so they can be sure that neither are digital impersonations. To mitigate that risk, I have developed this simple solution where you can setup a unique time-based one-time passcode (TOTP) between any pair of persons. This is how it works: Two people, Person A and Person B, sit in front of the same computer and open this page; They input their respective names (e.g. Alice and Bob) onto the same page, and click “Generate”; The page will generate two TOTP QR codes, one for Alice and one for Bob; ...