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reticiulum-specification/tools/README.md
John Poole 7ffbb0ef5e Completed the full link-delivered LXMF unit: 
Tier 1 audit: `link-lxmf-tier1-rns-1.2.4-lxmf-0.9.7.md`
Tier 2 vectors/verifier: link-lxmf.json, regen_link_lxmf.py, and verify_link_lxmf.py
Tier 3 promotion: updated SPEC.md, flows, status, and documentation
Key correction: the 319/320 boundary uses upstream’s computed LXMF content_size, not simply raw message content length.
Also corrected stale flow descriptions for KEEPALIVE (0xFA) and encrypted LINKCLOSE teardown (0xFC).
Verification:
Deterministic vector regeneration: identical SHA-256
Portable-path and formatting checks: pass
Full pinned suite: 17 passed, 0 failed
2026-06-08 13:54:27 -07:00

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Verifier scripts

Self-contained Python scripts that test claims in ../SPEC.md against the upstream RNS / LXMF Python stack.

Conventions

  • Each script verifies one claim or one related cluster of claims.
  • Exit code 0 on PASS, non-zero on FAIL.
  • Print a one-line PASS/FAIL summary plus a unified diff or hex dump on mismatch.
  • Reference the SPEC.md section the script verifies in a docstring at the top.

Required environment

The verifier suite does not rely on any fixed virtual-environment path. Create an isolated environment wherever appropriate. From the repository root, the recommended POSIX setup is:

python3 -m venv .venv
.venv/bin/python -m pip install -r tools/requirements.txt

Run the complete pinned baseline:

.venv/bin/python tools/verify_all.py

On Windows, use .venv\Scripts\python.exe for both commands. Activating the environment is optional. A custom environment path works equally well: invoke tools/verify_all.py with that environment's Python executable.

verify_all.py refuses to run the suite when installed RNS/LXMF versions do not exactly match tools/requirements.txt. Individual scripts read RNS.__version__ at startup and print it in their output so a future reader can tell which RNS version a verification ran against.

Status

Populated against RNS 1.2.4 / LXMF 0.9.7:

Script Verifies SPEC.md section Status
verify_all.py pinned-version gate and complete verifier-suite runner ✅
verify_destination_hash.py §1.1, §1.2, §1.3 — identity composition, dest_hash = SHA256(name_hash || identity_hash)[:16], on-disk private-key round-trip via to_file/from_file ✅
verify_packet_header.py §2.1, §2.2, §2.3 — flag byte layout, HEADER_1/HEADER_2 form, originator HEADER_1→HEADER_2 conversion via upstream Transport.outbound ✅
verify_token_crypto.py §3 — Token encrypt/decrypt, HKDF salt = identity_hash, HMAC-then-AES order, PKCS#7 padding ✅
verify_announce_app_data.py §4.3 — LXMF announce app_data 2-element form, parser tolerance ✅
verify_announce_roundtrip.py §4.1, §4.2, §4.5 — announce body layout, signature, dest_hash recompute, tamper rejection ✅
verify_lxmf_opportunistic.py §5.1, §5.2, §5.5, §5.6 — full identity → encrypt → decrypt → parse round-trip ✅
verify_proof_packet.py §6.5 — implicit (64B) and explicit (96B) proof body forms, validator length-dispatch ✅
verify_link_handshake.py §6.1, §6.2, §6.3, §6.6 — LINKREQUEST/LRPROOF body order, link_id derivation, signalling ✅
verify_link_lrrtt.py §6.4.2, §6.4.3 — LRRTT wire form, HEADER_1 header, dest_type=LINK, ctx=0xfe, link-form Token body, msgpack float64 plaintext ✅
verify_link_lxmf.py §5.2, §5.5, §5.6, §6.4.3, §10.1 — DIRECT PACKET/Resource boundary, Link decrypt/parse, wrong-key rejection, receive dispatch ✅
verify_path_request.py §1.2 well-known hashes, §7.1 LXMF path-preamble gating ✅
verify_rnode_split.py §8.3 — RNode air-frame split-packet TX/RX state machines ✅
verify_msgpack_quirk.py §9.3 — encoding name as bytes vs str affects upstream parsing ✅
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) ✅
verify_resource.py §10.2, §10.4, §10.6-§10.9, §10.11, §10.12 — vectors, whole-stream encryption/slicing, receiver assembly/proof, control behavior, multi-segment size, and negative cases ✅
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) ✅
regen_link_lxmf.py regenerates test-vectors/link-lxmf.json (deterministic DIRECT PACKET and Resource boundary vectors) ✅
regen_resources.py regenerates test-vectors/resources.json (deterministic Resource ciphertext, parts, ADV, and PRF body) ✅

See ../agent.md §3 and ../todo.md for the evidence model and remaining priority order.