The ISO build now writes the minted throwaway root plaintext to a 0600
sibling file (<iso>.rootpw.txt: password + ISO name + build date) — the
single record of truth. Never stdout/logs/manifest; the manifest carries
only a pointer line. OUT_ISO naming hoisted above the mint (the sibling
is named after the ISO); the mint itself and ROOT_PLAIN's lifetime are
unchanged beyond the one file write. FELHOM_ISO_KEEP_WORK=1 debug escape
added for the harness. New test/rootpw-emission.sh: dry-run emission,
0600, plaintext<->answer-hash cross-check (openssl -6 -salt), no
plaintext on stdout, manifest-heredoc guard. Red-proof run: plaintext
injected into the manifest heredoc -> harness FAILs -> restored.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UuFPHmHNrCJj1VhY6QdDMU
A generic ISO carries NO customer secret. The box registers itself at the hub
as an unclaimed appliance; the operator binds it to a customer; the hub delivers
the customer-id + retrieval passphrase ONCE; day-0 completes via the slice-A path.
Hub (v0.62.0):
- store/appliance.go: appliance_registrations keyed by (uuid, mac_set) — MAC set
is the tiebreaker (duplicate SMBIOS UUIDs); token stored as sha256 only.
Idempotent register (sticky-discard), atomic one-shot delivery, bind/discard.
- api/appliance.go: POST /appliance/register (the one unauth endpoint, per-IP
rate-limited, 256-bit token); GET /appliance/poll (404 no-oracle / 204 unbound
/ 200 deliver-once / 410 delivered). Passphrase read live, never logged.
- web/appliances.go: Hosts-page "Unclaimed appliances" section + BIND (customer
picker, host count display-only) + DISCARD; SSH host-key fingerprints; events.
- Red-proofs: one-shot delivery + register idempotency (both proven red);
404-no-oracle, sticky-discard, bind staging, render. Green + confirm gate.
Scripts (v1.19.0):
- felhom-bootstrap.sh: ONE unit, TWO modes. Direct (env has customer/passphrase)
= slice-A path, byte-identical, only branched around. Pairing (generic) =
register + poll (RestartSec=30 is the poll timer); on delivery write the env
0600 and fall through to direct. Secrets + token shredded on success.
- build-felhom-iso.sh --pairing: generic secret-free ISO, -generic filename,
manifest mode=pairing. profiles/generic.profile (new).
- test/bootstrap-modes.sh: Scenario D (direct = zero appliance calls) + pairing
register/poll + delivery handoff — all green in a debian container.
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