PHP implementation of PulseProof Sentinel Protocol (PPS): time-bound asymmetric authentication proofs for offline, OTP-style, transaction-signing, duress-aware, and multi-device flows.
authentication security-protocol cbor totp ed25519 hkdf 2fa pps webauthn fido2 transaction-signing passkeys offline-authentication totp-alternative pulseproof
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Updated
Jul 23, 2026 - PHP