Every other game I can think of has a utility out there to unpack resource files (in the case of EQ2 *.vpk files). From what I can find, theres not even been any discussion of one for EQ2. I know its been done- a german site posted maps extracted from the vpks they hacked out of the preorder CD, before beta was even open to anyone but friends and family...so I'm just a bit suprised nothing has been publicly released (AFAIK).
Based on SOEs past projects, and also on the encrytioon scheme used for packets, my guess (only a guess) would be that the encryption would go somthing like this:
a=raw data chunk
b=rotate a (left or right, and rotate distance to be determined)
c=a XOR b
decompress results with zlib.
could be completely wrong, but that seems to be thier favorite encrytion method.
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