LMXF-specification/tools/README.md

LXMessage Test-Vector Tooling

The scripts in this directory verify the implementation-derived LXMessage packing behavior described in Code_Response_1.md.

They use only Perl core modules. The local LXMF::MessagePack module implements the MessagePack subset needed to generate the vectors and parse their complete payloads.

Generate deterministic vectors:

perl tools/make_test_vectors.pl

Verify the vectors:

perl tools/verify_examples.pl

The vectors confirm:

• the 16-byte destination hash, 16-byte source hash, and 64-byte signature positions;
• payload order [timestamp, title, content, fields, optional_stamp];
• float64 timestamp and binary title/content/stamp encodings;
• the message ID calculation;
• exclusion of the optional stamp from the message ID and signature input.

The signature bytes are deterministic placeholders. These vectors do not claim to verify Ed25519 signing or signature validation.