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Bootstrap test-vectors/{announces,lxmf,links}.json + regenerators

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Three deterministic vector files complete the test-vectors/ bootstrap.
Each regenerator pins every random source so output is byte-identical
across runs against a fixed upstream RNS / LXMF version.

- announces.json: two vectors (no-ratchet + with-ratchet) signed by
  Alice. Determinism via patched Identity.get_random_hash + module-
  local time.time shim inside RNS.Destination.

- lxmf.json: two opportunistic-LXMF vectors Alice -> Bob, captures
  full plaintext (S5.2 layout) plus Token-encrypted ciphertext (S3).
  Determinism via fixed LXMessage.timestamp, ephemeral X25519 priv,
  and Token CBC IV.

- links.json: full Link handshake — LINKREQUEST + LRPROOF wire bytes,
  derived link_id, ECDH shared secret, and HKDF-derived session key
  that both initiator and responder MUST agree on. Determinism via
  three queued ephemeral priv-key blobs (initiator X25519, initiator
  Ed25519, responder X25519) consumed in source-call order at
  RNS/Link.py:285, :286, :278.

Status table in test-vectors/README.md and tools/README.md updated to
reflect the completed bootstrap. todo.md cleaned up to reflect actual
state (the previous "Open ⚠️ items needing a runtime verifier" section
was stale — all three verifiers were completed earlier).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rob 2026-05-04 21:56:44 -04:00
commit 038e39401f
9 changed files with 1028 additions and 55 deletions
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tools/README.md
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@ -37,5 +37,8 @@ Populated against RNS 1.2.0 / LXMF 0.9.6:
| `verify_stamps.py` | §5.7 — workblock determinism, PoW stamp search/validate, ticket shortcut | ✅ |
| `verify_ratchet_dedup.py` | §7.3 / §4.5 step 6.3 — confirms replay defence is keyed on `random_blob`, NOT on `(dest_hash, ratchet_pub)` | ✅ |
| `regen_identities.py` | regenerates `test-vectors/identities.json` | ✅ |
| `regen_announces.py` | regenerates `test-vectors/announces.json` (deterministic announce wire bytes, with and without ratchet) | ✅ |
| `regen_lxmf.py` | regenerates `test-vectors/lxmf.json` (deterministic opportunistic-LXMF plaintext + Token ciphertext) | ✅ |
| `regen_links.py` | regenerates `test-vectors/links.json` (deterministic LINKREQUEST + LRPROOF + derived session key) | ✅ |
See [`../agent.md`](../agent.md) §5 and [`../todo.md`](../todo.md) for the remaining priority order.