Zero Trust Architecture

Never Trust. Always Verify.

LIBUX implements the NIST SP 800-207 Zero Trust Architecture model across all system layers — device, identity, workload, network, and data.

Zero Trust WhitepaperView Architecture

Never Trust, Always Verify

No implicit trust is granted based on network location. Every access request is fully authenticated, authorized, and encrypted before granting access.

Trust everything inside the network perimeter
Verify every request as if it originates from an untrusted network

Least Privilege Access

Users, devices, and workloads are granted only the minimum permissions required to perform their function, with time-bound and context-aware scoping.

Broad, permanent access once inside the perimeter
Just-in-time, just-enough access with continuous verification

Assume Breach

System design assumes that breaches will occur. Blast radius is minimized through microsegmentation, encryption everywhere, and comprehensive monitoring.

Focus on preventing perimeter breach
Minimize blast radius and detect lateral movement immediately

Zero Trust Pillars

Identity

  • User identity (humans)
  • Workload identity (SPIFFE)
  • Device identity (TPM cert)
  • Service account identity
  • Federation (OIDC/SAML)
  • Continuous re-authentication

Device

  • TPM 2.0 attestation
  • Secure Boot verified state
  • MDM enrollment
  • Patch compliance check
  • EDR agent health
  • Behavior anomaly detection

Network

  • Microsegmentation
  • eBPF network policies
  • mTLS everywhere
  • Service mesh (Istio)
  • DNS-over-HTTPS
  • Encrypted east-west traffic

Workload

  • Container identity
  • Pod security standards
  • SPIRE workload API
  • Image provenance
  • Runtime policy enforcement
  • Falco runtime detection

Data

  • Encryption at rest (LUKS2)
  • Encryption in transit (TLS 1.3)
  • Data classification
  • DLP controls
  • Key management (HSM/PKCS#11)
  • Secrets management (Vault)

Visibility

  • Comprehensive audit logs
  • SIEM correlation
  • Behavioral analytics (UEBA)
  • Threat hunting
  • Incident response playbooks
  • Executive dashboards

Zero Trust Access Flow

1
Access Request
User/workload initiates request
2
Identity Verification
MFA, passkey, or hardware key
3
Device Attestation
TPM PCR, boot state, compliance
4
Context Analysis
Location, time, behavior risk score
5
Policy Evaluation
Real-time OPA/Cedar policy decision
6
Access Grant / Deny
Scoped, time-limited token issued
7
Continuous Monitoring
Session behavior monitored in real-time