Signaturefile
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Header
The header contains the signature-version. The current version is:
2 2 RELEASE
The versions are checked when loading. RELEASE is the so called "scope string". In release versions of WoW, there are no alternatives to all values.
Entry
Entries are seperated by \r\n (new line). The different values are divided by semicolons (;).
'base' or a locale id ('enGB', 'deDE' etc.) 'c' or 'e' signature ('0002EED5F13B614C781AE654EAD524E2') filename ('World\Generic\Human\Passive Doodads\RUGS\GeneralBearSkinRug01.m2')
base-files are used on all versions, if a locale id is given, it is only active if the right client is used.
SIGN-"chunk"
At the end of the file, there is a SIGN-"chunk". Its not exactely a chunk since it does not have a chunk-size field but only the reverse-order name. Its a 256bit signature.
For information on how to decrypt it, have a look at:
SIG_initCheck+24B 8B 45 FC mov eax, [ebp+filecontent] ; .text:004028FB - 3.0.8.9464 SIG_initCheck+24E 50 push eax SIG_initCheck+24F E8 AC 3D 2E 00 call sub_6E66B0 SIG_initCheck+254 5F pop edi SIG_initCheck+255 5E pop esi SIG_initCheck+256 5B pop ebx SIG_initCheck+257 8B E5 mov esp, ebp SIG_initCheck+259 5D pop ebp SIG_initCheck+25A C3 retn