The Zero Trust Gateway is the access control brain of the Nexxus platform. Operating under the NIST 800-207 framework, it assumes every request — regardless of network origin — is a potential threat. Every connection is continuously validated against identity, device state, behavioral context, and microsegmentation policy before access is granted. No implicit trust is ever extended to any principal, service, or network segment.
Always authenticate and authorize based on all available data points: identity, location, device, service, workload, data classification, and anomaly signals. No factor is sufficient alone.
🔑
Use Least Privilege
Limit user access with just-in-time and just-enough-access (JIT/JEA). Risk-adaptive policies and data segmentation reduce the blast radius of any single compromised credential.
💥
Assume Breach
Minimize blast radius. Segment access by network, user, device, and application. Encrypt all sessions end-to-end. Use analytics to gain visibility and detect threats already inside the perimeter.
⚙️ Auth Pipeline
📨
Request
Inbound access attempt
→
🎫
JWT Validation
Signature + expiry check
→
🖥️
Device Fingerprint
Hardware ID + OS state
→
🧠
Behavioral Check
ML risk score ≤ 50
→
🔲
Microsegment
Policy enforcement point
→
✅
Response
Access granted / denied
Pipeline Validation Details
Each stage in the pipeline is independently enforced. A failure at any stage immediately terminates the request chain and logs a denial event. Stage 4 (Behavioral Check) consults the AI engine in real time; scores above 50 trigger step-up authentication and scores above 80 result in automatic IP quarantine.
JWT TOKEN
RS256 signed, 15-min TTL, refresh rotation with family invalidation on reuse detection.
DEVICE BINDING
TPM attestation, OS integrity check, MDM enrollment status verified per request.
MICROSEGMENT
Each resource lives in an isolated segment. Cross-segment calls require explicit policy grant — default deny.