2 Dec
2005
2 Dec
'05
4:18 p.m.
On 12/2/2005 at 5:42 PM Jim Leonard wrote:
simply evil in their cleverness and ingenuity.
King's Quest 2 encrypted
the
main code with a cypher kept somewhere abnormal (like a
10th sector or
41st
track, can't remember the exact one) that was
transparently missed by
DISKCOPY:
you could make a copy without errors, but it wouldn't work... and the
decryption routine was itself obfuscated with some clever self-modifying
code, so you couldn't just dump the raw code and (U)nassemble it
I'd have to go through my very very musty notes, but someone sent me a KQ 2
disk with an "I bet you can't crack this one". It was very clever, even
with the INT 3 vector being clobbered, so you couldn't breakpoin it.
However, most things will yield to interpretive execution or an ICE box. I
used the former, but the latter would have been easier.
P.S. I did crack it. (this was before DMCA, so I think it was still legal
back then).
Cheers,
Chuck