Summary

  • In a world where deepfakes and digital impersonation are growing concerns, Pairwise Authentication of Humans is an innovative solution for two humans to verify each other’s identity remotely.
  • The system works by generating a time-based one-time passcode (TOTP) specific to each pair of individuals, allowing them to confirm their authenticity when speaking over the phone or via video call.
  • The process is simple: both individuals input their names on the same webpage and click “Generate,” which displays two TOTP QR codes specific to each person.
  • These QR codes are scanned into a TOTP mobile app, such as Authy or Google Authenticator, on each individual’s mobile phone.
  • In the future, when the individuals need to authenticate each other, one can request the other to provide the 6-digit TOTP code from their mobile app.
  • If the codes match, it confirms the likelihood of speaking with the genuine individual, while a mismatch provides discretion, indicating a potential identity crisis.
  • Repeat usage of the system allows individuals to recognize patterns and add an additional layer of security through the possibility of recognizing irregularities.

By Bruce Schneier

Original Article