From: Caolan McNamara (Caolan.McNamara at domain ul.ie)
Date: Mon 13 Sep 1999 - 14:42:35 IST
word 97 decryption has now been fully implemented.
http://www.csn.ul.ie/~caolan/publink/wvDecrypt
contains a utility that can decrypt word97 docs given the
correct password.
development version 0.5.29 and above of wv at
http://www.csn.ul.ie/~caolan/publink/mswordview/development
(or in abiword cvs) has this ability built in for conversion of
word docs to other formats.
The missing link that was eluding me was pointed out by
Dmitry Sumin <sumin at domain lostpassword.com> and simultaneously
found and implemented by Dieter Spaar <spaar at domain mirider.augusta.de>,
full kudos to him.
In short the index number of each page of ciphertext (each 0x200 unit)
modifies the data that is passed into the rc4 key preparation.
C.
Real Life: Caolan McNamara * Doing: MSc in HCI
Work: Caolan.McNamara at domain ul.ie * Phone: +353-86-8790257
URL: http://www.csn.ul.ie/~caolan * Sig: an oblique strategy
Discard an axiom
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