Cryptographic Attestation of Personhood
Cryptographic Attestation of Personhood provides two of alternatives to CAPTCHAs to prove you are not a robot:
- security keys (USB and NFC keys that are certified by the FIDO alliance and
- biometric authenticators (like Apple's Face ID, Microsoft Hello, and Android Biometric Authentication).
You can try it out on our demo site and let us know your feedback.
Research AreasCryptography, Privacy, Authentication
Selected Areas in Cryptography (SAC 2021). To appear (2021).Armando Faz-Hernández, Watson Ladd, Deepak Maram
- More devices, fewer CAPTCHAs, happier users
- Introducing Zero-Knowledge Proofs for Private Web Attestation with Cross/Multi-Vendor Hardware
- Humanity wastes about 500 years per day on CAPTCHAs. It’s time to end this madness