Solutions/Air-Gapped Audit
Blueprint 01

Air-Gapped Audit Bundle Exchange

Portable, self-contained evidence bundles for environments where network connectivity is unavailable, restricted, or untrusted. Complete cryptographic verification without external dependencies.

DoD/Gov ContractorsFIG. 8, Claim 9

1. Target System

Disconnected, Denied, Intermittent, or Limited (DDIL) environments including classified networks, forward-deployed military systems, critical infrastructure with network isolation, and regulated environments requiring air-gapped audit trails.

2. Threat Model

Tampered evidence during network transit
Unauthorized modification of audit records
Replay attacks with stale evidence
Verifier substitution attacks
Chain discontinuity exploitation

3. Integration Points

Bundle Export API

POST /v1/evidence/{run_id} → ZIP stream

Offline Verifier

verify.js bundle.zip → PASS/FAIL

Manifest Validation

SHA-256 checksums for all artifacts

Signature Verification

Ed25519 over canonical bytes

┌─────────────────────────────────────────────────────────────────┐
│                     CONNECTED ENVIRONMENT                        │
│  ┌──────────────┐    ┌──────────────┐    ┌──────────────┐       │
│  │   Policy     │───▶│   Sentinel   │───▶│   Evidence   │       │
│  │   Artifact   │    │   Runtime    │    │   Bundler    │       │
│  └──────────────┘    └──────────────┘    └──────┬───────┘       │
│                                                  │                │
│                                          bundle.zip               │
│                                                  │                │
└──────────────────────────────────────────────────┼───────────────┘
                                                   │
                              ═══════════════════════════════════
                                      PHYSICAL TRANSFER
                              ═══════════════════════════════════
                                                   │
┌──────────────────────────────────────────────────┼───────────────┐
│                     AIR-GAPPED ENVIRONMENT       │                │
│                                                  ▼                │
│                                          ┌──────────────┐        │
│                                          │   Offline    │        │
│                                          │   Verifier   │        │
│                                          └──────┬───────┘        │
│                                                  │                │
│                                          PASS / FAIL              │
│                                                  │                │
│                                          ┌──────▼───────┐        │
│                                          │    Audit     │        │
│                                          │    Record    │        │
│                                          └──────────────┘        │
└──────────────────────────────────────────────────────────────────┘

4. Artifacts Produced

Policy Artifact
Receipt Chain
Evidence Bundle

5. Offline Verification Workflow

1

Transfer bundle to air-gapped system

USB, optical media, or secure file transfer

2

Verify bundle checksums

SHA-256 manifest validation

3

Run offline verifier

node verify.js bundle.zip

4

Record deterministic verdict

PASS / PASS_WITH_CAVEATS / FAIL with report_hash

6. Measurable Outcomes

Reduces incident reconstruction time with complete evidence chain
Enables third-party audit without network access
Provides evidentiary-grade cryptographic proof for audits
Eliminates trust in transit infrastructure

Sample Bundle

Air-gapped audit variant with verification transcript

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