flex-auth regenerated decision_destroy_dual_control so context.approval
carries a complete approval-claim including the now-required
binding.pdp_digest. Because context is part of the digest material, that
changed both the request digest and the context input-claim digest; the
vendored copy and its pins are updated. Our digest join reproduces the new
envelope digest exactly, so the digest_material fix holds.
Two properties are now asserted rather than described:
- The embedded claim's binding speaks approval-engine's vocabulary
(secrets.kv.destroy, target {id, stage}) while the decision speaks ours
(destroy, lane:...). That is the unpublished mapping, now a test.
- The claim's pdp_digest cannot equal the request digest of the request that
carries it: embedding the claim in a hashed context changes that digest.
It matches neither the full request nor the request with the claim
removed. Raised with both teams; recorded here so a future change to it is
visible rather than silent.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M65ovP3eiiPHubibvWs9mD
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Verified the digest join against flex-auth's T03 replay fixtures and found
request_digest was hashing fields docs/canonical-request-digest.md excludes.
The material is tenant, subject, action, resource, context only: id is
correlation, policy_version lives in provenance, caring_context is hashed
separately. This engine included all three when present.
Because the join adopts the served request id, every real production request
would have carried one, so the computed digest would have matched no issued
decision and failed closed against every correct allow. Same unsatisfiable
shape as the removed AUTHORITY constant.
The old pinned constant was computed with the id inside the material, so it
was wrong and its passing proved nothing. Replaced with fixture-driven tests
over two real envelopes (vendored with provenance) plus a structural test
that correlation fields do not move the digest. Both fixtures are needed:
input_claim_digests.context appears only with a non-empty context.
Also stops computing the native claim digest. The claim's binding.action and
binding.target speak approval-engine's vocabulary while ours speaks the
catalog's, and no mapping is published; flex-auth makes no cross-check and
states the correspondence is ours via pdp_digest. A claim recording no
pdp_digest now fails closed naming the missing mapping rather than comparing
two different languages. That mapping is a prerequisite for destroy.
274 tests pass. Production still fails closed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M65ovP3eiiPHubibvWs9mD
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 393550@bnt-lap001
Assistant-Session: 4bb359f9-1f12-4410-9e76-079cf23c82e4
