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LithosAnanke/docs/fabric
Claude 03027f9769
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pki: the StarshipOS CA, made on the CI box; capsules signed in CI
Ruled by Captain Bob, 2026-11-07: "New root CA on the CI box. Valid
StarshipOS rather than snake oil intermediate."

- ci/pki/make-ca.sh makes the StarshipOS Root CA (its key stays on the CI
  box) and the StarshipOS Capsule Signing intermediate it issues, and
  stores the signing key as the secret CAPSULE_SIGN_KEY.
- The kernel finds the signing certificate by one name,
  CAPSULE_SIGNING_CERT_NAME = pki:starshipos-intermediate.der. The
  certificate itself lands once make-ca.sh has run; until then the
  snakeoil intermediate is in the tree under its old name and the
  capsules check as "no root key" (a warning, as "missing" was).
- mkcapsule refuses a signing key that is not that certificate's.
- SIGN_KEY has no default; acceptance, build, nightly and release set it
  from the secret.

FABRIC-3.md XLVI.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
2026-11-07 04:15:29 +00:00
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