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s1d3sw1ped b38f7f643b Add bambu-nfc dump parse, Key-A HKDF, and spool merge.

Parse filanfc-dump/v1 zip/JSON, Bambu 1K images, and merge stickers by tray UID. dump and mifare packages stay importable for a later common library.

2026-08-23 15:23:11 -05:00

bambu-nfc Library Implementation Plan

For agentic workers: Use TDD. Spec: docs/superpowers/specs/2026-08-23-bambu-nfc-library-design.md

Goal: Go module that parses filanfc-dump/v1 zips into Bambu tags/spools and derives MIFARE Key-A from a chip UID.

Architecture: Public packages dump (JSON/zip), mifare (1K layout), root bambunfc (HKDF, block parse, Merge).

Tech Stack: Go 1.25, stdlib crypto/hkdf, encoding/json, archive/zip.

Global Constraints

Module git.s1d3sw1ped.com/s1d3sw1ped/bambu-nfc
Brand on success: "Bambu Lab"
HKDF: IKM=UID, salt=9a759cf2c4f7caff222cb9769b41bc96, info=RFID-A\0, 16×6 Key-A
Diameter float32 at block 5 offset 8; tray UID 16 raw bytes hex
Required dump sectors for a Bambu parse: 0, 1, 2 (sectors_fail is sector indexes)
go test -race ./...
Fixtures from dump-app docs/dumps/ → testdata/

Tasks: (1) module + mifare (2) dump JSON/zip (3) KeysA (4) ParseImage/ParseDump/ParseZip (5) Merge (6) testdata + README.

Executing in this session per user "do it".