BIDO: A Biometric Identity Online Authentication Framework
Security systems demand continuous, cryptograph- ically robust identity verification without requiring subjects to carry physical tokens, smart cards, or dedicated hardware authenticators. This paper presents BIDO (Biometric Identity Online), a device-free authentication standard that achieves Au- thenticator Assurance Level 2 (AAL2) per NIST SP 800-63B with- out storing long-lived biometric templates, facial images, or any other form of Personally Identifiable Information (PII). BIDO derives Elliptic Curve Digital Signature Algorithm (ECDSA) key material deterministically from a live biometric measurement salted with a user-defined memorized secret at every authen- tication event, elimin...
| Authors | Aditya Mithra, Sibi Chakkaravarthy S, Srinivas Kankanala |
|---|---|
| Primary category | cs.ET |
| Published | 16 May 2026 |
| Last updated at source | 16 May 2026 |
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