# Offline Kit Import Verification Runbook

This runbook supports AIRGAP-MANIFEST-510-010, AIRGAP-REPLAY-510-013, and AIRGAP-VERIFY-510-014. It validates bundles fully offline and enforces replay depth.

## Replay depth levels (manifest `replayPolicy`)
- `hash-only`: verify manifest/bundle digests, staleness window, optional signature.
- `full-recompute`: hash-only + every chunk hash + AV report hash.
- `policy-freeze`: full-recompute + manifest policies must include the sealed policy hash (prevents imports with drifting policy/graph material).

## Quick steps

```bash
src/AirGap/scripts/verify-kit.sh \
  --manifest offline-kit/manifest.json \
  --bundle offline-kit/bundle.tar.gz \
  --signature offline-kit/manifest.sig --pubkey offline-kit/manifest.pub.pem \
  --av-report offline-kit/reports/av-report.json \
  --receipt offline-kit/receipts/ingress.json \
  --sealed-policy-hash "aa55..." \
  --depth policy-freeze
```

## What the script enforces
1) Manifest & bundle digests match (`hashes.*`).
2) Optional manifest signature is valid (OpenSSL).
3) Staleness: `createdAt` must be within `stalenessWindowHours` of `--now` (defaults to UTC now).
4) AV: `avScan.status` must not be `findings`; if `reportSha256` is present, the provided report hash must match.
5) Chunks (full-recompute/policy-freeze): every `chunks[].path` exists relative to the manifest and matches its recorded SHA-256.
6) Policy-freeze: `--sealed-policy-hash` must appear in `policies[].sha256`.
7) Optional: `--expected-graph-sha` checks the graph chunk hash; `--receipt` reuses `verify-receipt.sh` to bind the receipt to the manifest/bundle hashes.

Exit codes: hash mismatch (3/4), staleness (5), AV issues (6–8), chunk drift (9–10), graph mismatch (11), policy drift (12–13), bad depth (14).

## Controller verify endpoint (server-side guard)

`POST /system/airgap/verify` (scope `airgap:verify`) expects `VerifyRequest`:

```jsonc
{
  "depth": "PolicyFreeze",
  "manifestSha256": "...",
  "bundleSha256": "...",
  "computedManifestSha256": "...", // from offline verifier
  "computedBundleSha256": "...",
  "manifestCreatedAt": "2025-12-02T00:00:00Z",
  "stalenessWindowHours": 168,
  "bundlePolicyHash": "aa55...",
  "sealedPolicyHash": "aa55..." // optional, controller fills from state if omitted
}
```

The controller applies the same replay rules and returns `{ "valid": true|false, "reason": "..." }`.

## References
- Schema: `docs/airgap/manifest.schema.json`
- Samples: `docs/airgap/samples/offline-kit-manifest.sample.json`, `docs/airgap/samples/av-report.sample.json`, `docs/airgap/samples/receipt.sample.json`
- Scripts: `src/AirGap/scripts/verify-kit.sh`, `src/AirGap/scripts/verify-manifest.sh`, `src/AirGap/scripts/verify-receipt.sh`