00Abstract
The identity security industry has invested heavily in threat detection (SIM-swap monitoring, number-porting alerts, carrier fraud signals), yet a critical gap persists between identifying a threat and protecting the affected user. Detection, no matter how fast or accurate, does not constitute response. This whitepaper introduces Identity Threat Response as a Service (ITRaaS), a model that eliminates the manual orchestration bottleneck by coupling carrier signal ingest with deterministic, policy-driven remediation.
We describe the three-pillar architecture underpinning PasskeyBridge (network attestation, verifiable credentials, and biometric binding) and demonstrate how their convergence produces an auditable trust chain resistant to the class of attacks that single-pillar systems cannot address. We detail the platform's credential lifecycle management, including batch VP Token verification and StatusList2021 auto-refresh with conditional caching, which enable high-throughput credential verification at scale.
We further present the zero-PII data model; the production post-quantum signatures, which use the ML-DSA-65 and ML-DSA-87 algorithms from NIST FIPS 204 with keys derived from a server-held master key, and NIST's post-quantum transition guidance (NIST IR 8547); the Seed & Stretch entropy architecture bridging classical and quantum-era key material; the A2A Horizontal Trust Protocol for autonomous inter-agent trust negotiation; the physics-layer trust infrastructure spanning Provenance Guard, BLAST tunnels, Parametric Revocation Cascade, and Recursive Entropy Chaining; and the observability and human-in-the-loop review pipelines that provide operational visibility without exposing PII.
The paper also introduces three emerging constructs: the Physics-Anchored Identity Settlement Token model, the Relativistic Kinematic Space-Time Authentication protocol that treats the LEO Doppler curve as a cryptographic challenge, and the Purpose-Bound PII Vault with dual-path cryptographic storage. Four industry verticals are explored in depth. The methods described herein are the subject of 20 US patent applications filed (7 non-provisional, 13 provisional). Parametric revocation triggered by real-time carrier signals runs in our production environment today (Section 8 describes what it revokes).
Continue reading?