feat: concierge mints SIGNED grants + publishes its keys (issuer side)#6
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The concierge mints grants, so it signs them. resolve now returns a SignedGrant bound to the caller (audience), a short expiry, and a nonce, signed with an Ed25519 grant key (generated + persisted on first use). A new `keys` method publishes the issuer's public key set (kid-indexed) for keyless verification by serving rooms (verifyGrantWithKeys) — no shared secret. Un-stubs the Phase-1 null signature (CONCIERGE.md §7 / the transport-split ADR). Tests: resolve mints a grant that verifies against the published keys, and a different audience cannot present it. 11 pass. Remaining: the serving-room verify step in each door daemon + key fetch. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
The concierge mints grants, so it signs them (issuer side of the transit-grant work,
prx-79id):resolvenow returns a SignedGrant bound to the caller (audience), a short expiry, and a nonce — signed with an Ed25519 grant key generated + persisted on first use ($CONCIERGE_GRANT_KEY).keysmethod publishes the issuer's public key set (kid-indexed) for keyless verification (verifyGrantWithKeys) by serving rooms — no shared secret.Verification
bun test— 11 pass. The key test drives the daemon:resolvemints a grant that verifies against the publishedkeys, and a different audience is rejected (audience-mismatch).guest-room-mirrorcheck passes (bumped to the rev withsignGrant/IssuerKeys).Remaining (next sub-step)
The serving-room verify step in each door daemon (door-net / door-scout / door-keeper): fetch the concierge's
keys,verifyGrantWithKeysbefore honoring a call, thencheckCaveats. Plus the guest-room release + mirror-sync into claude-box.🤖 Generated with Claude Code