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Amiga Plus 2002 #3
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Amiga Plus CD - 2002 - No. 03.iso
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Ppdecrypt.readme
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2003-02-24
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Short: Decrypts PowerPacker executables
Author: Trevor Mensah (2-Cool/LSD)
Uploader: Stuart Caie <kyzer@4u.net>
Type: util/crypt
This is the PPDecrypt tool. It will examine Amiga executables compressed
and encrypted with PowerPacker, and will change the encryption such that
the password is now "lsd".
You can then decrypt and decrunch the executable using this password.
The tool comes with full assembler source code.
My own tool, ppcrack (util/crypt/ppcrack.lha), which will crack any
PowerPacker data file (31-bit keyspace brute force) in roughly 30 minutes,
will in future include a feature to crack, decrypt and decrunch any
executable within a couple of seconds, using the techniques pioneered here
(plaintext attack -> 9-bit keyspace brute force). However, until I actually
implement that, PPDecrypt shall suffice for all your PP-crypted executable
decrunching needs :)