Security is the architecture
KIFP security controls are structural, not supplementary. Every component enforces cryptographic verification, least privilege, and complete auditability as architectural requirements.
Defense in depth
Layered security controls across every tier of the KIFP architecture.
Encryption
AES-256-GCM at rest. TLS 1.3 in transit. mTLS between all KIFP components. No plaintext credentials in any layer of the system.
Per-Transaction Key Rotation
Every RSAT is signed with a unique ECDSA P-256 key pair. Private keys are destroyed immediately after signing. No key persists beyond a single authorization event.
Edge Biometric Isolation
Biometric data is captured, processed, and matched entirely within the Edge Node's secure execution environment. No biometric template or raw signal is transmitted or stored centrally.
Immutable Audit Trail
Append-only, hash-chained audit logs for every authorization decision, key lifecycle event, policy change, and federation action. Tamper-evident by construction.
Governance-Enforced Access
Role-based access control with least-privilege defaults. Root Authority administrative actions require multi-factor authentication and quorum approval.
Continuous Monitoring
Real-time security monitoring with anomaly detection across all KIFP layers. Automated alerting for suspicious patterns, failed attestations, and policy violations.
Threat model
KIFP is designed against specific threat categories with concrete, verifiable mitigations.
| Threat | KIFP Mitigation |
|---|---|
Credential replay | Per-transaction key rotation. RSAT TTL ≤ 120 seconds. JTI uniqueness enforcement across all verifiers. |
Biometric data exfiltration | Biometric data never leaves edge device. Only signed match results transmitted. No centralized biometric storage. |
Cross-domain identity linkage | FIA tokens use domain-specific pseudonymous identifiers (HMAC-SHA256 with per-domain salt). Non-linkable across domains. |
Edge device compromise | Secure element binding. Firmware integrity verification. Remote revocation within 60 seconds. Store-specific device binding. |
Root authority compromise | Federation tiering limits blast radius. M-of-N quorum for root key operations. Cross-root revocation propagation. |
Man-in-the-middle | mTLS with certificate pinning between all KIFP components. No implicit trust on any network path. |
Quantum cryptanalysis | PQ-ready token structure with Dilithium placeholder fields. Version negotiation for algorithm migration path. |
Compliance readiness
Controls and evidence mapped to major compliance frameworks. Compliance requirements are design inputs, not afterthoughts.
SOC 2 Type II
Scope: Full platform
ISO 27001
Scope: Full platform
PCI DSS Level 1
Scope: Payment processing layer
GDPR
Scope: EU deployments
HIPAA
Scope: Healthcare deployments
Responsible disclosure
Report a vulnerability
If you have identified a security vulnerability in any KeyIdentity-operated system, report it to security@keyidentitypay.com. We acknowledge reports within 24 hours and provide an initial assessment within 72 hours.
Scope: All KeyIdentity-operated infrastructure, APIs, KIFP reference implementations, and client libraries.
Safe harbor: We will not pursue legal action against security researchers acting in good faith and within the scope of this policy.
Request a security review
Our security team is available for detailed architecture and threat model reviews with prospective deployment partners.