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re: BLOCKED -- the 2D / READY_ROOM TOC names, three routes closed with controls

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1. A different hash family.  The corpus knows three (idxd-tag-hash.md):
name_hash, tag_hash, ixud_hash.  Scoring all 5977 harvested names x 6
prefixes: GP_TITLE 8/16 and GP_PAUSE_MENU 6/11 under name_hash (the
positive controls), and tag_hash and ixud_hash explain NOTHING anywhere
-- including the paks name_hash does explain.  So they are not the TOC
function, and the unnameable pair is not keyed by a different one.
GP_MAIN_GAME_E2D stays at 0/711 under all three.

2. The executable.  sylpheed.db's strings table holds 7140 rows, of
which exactly two look like asset paths -- Data\gmicon002_2.t32 and
Data\gmicon006_2.t32, in a Data\ directory nothing else on the disc
uses -- and neither resolves in any archive.  The binary is not the name
source; it holds two strays and no table.

3. Name transformations -- 13 of them on the 419 config paths, all 0.

The container runs out here.  Those TOC keys hash names that exist on
neither the disc nor the executable in readable form.  The only lever
left is a dictionary attack using name_hash's shape (top byte = the
character-sum checksum), and that needs a plausible name corpus this
disc does not contain.  Noted as blocked rather than improvised around.

The port does not need these names: sprites and bundles are readable by
content (T8aD, RATC), and the config records already say which asset
each HUD element uses.  Only the archive-key to name mapping is missing.

Artefact +22 lines / 0 deletions; the other eight regenerate
byte-identical.
This commit is contained in:
Sylpheed RE agent
2026-08-27 15:22:13 +00:00
parent 15b97af170
commit 27602a3032
4 changed files with 107 additions and 0 deletions
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22
docs/re/data/archive-naming.txt
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@@ -47,3 +47,25 @@
fonts.pak 3 3 100.0%
GP_SYSTEM.pak 2 2 100.0%
GP_TUTORIAL.pak 2 2 100.0%
## CONTROL is the unnameable pair keyed by a DIFFERENT hash?
(6 prefixes x 3 hash families; the menu paks are the positive control)
GP_MAIN_GAME_E2D.pak name_hash 0 / 711
GP_MAIN_GAME_E2D.pak tag_hash 0 / 711
GP_MAIN_GAME_E2D.pak ixud_hash 0 / 711
GP_READY_ROOM.pak name_hash 6 / 1106 <bare>
GP_READY_ROOM.pak tag_hash 0 / 1106
GP_READY_ROOM.pak ixud_hash 0 / 1106
GP_TITLE.pak name_hash 8 / 16 eng\
GP_TITLE.pak tag_hash 0 / 16
GP_TITLE.pak ixud_hash 0 / 16
GP_PAUSE_MENU.pak name_hash 6 / 11 eng\
GP_PAUSE_MENU.pak tag_hash 0 / 11
GP_PAUSE_MENU.pak ixud_hash 0 / 11
## CONTROL the executable holds almost no asset names
sylpheed.db `strings`: 7140 rows, of which 2 look like asset paths
Data\gmicon002_2.t32 and Data\gmicon006_2.t32
Data\gmicon002_2.t32 resolves anywhere: False
Data\gmicon006_2.t32 resolves anywhere: False
gmicon002_2.t32 resolves anywhere: False