Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!mintaka!bloom-beacon!eru!hagbard!sunic!mcsun!inria!chorus!ferry
From: ferry@chorus.fr (Ferry de Jong)
Newsgroups: comp.os.msdos.apps
Subject: Re: Word Perfect "locked document encryption" is trivial to break
Message-ID: <6125@chorus.fr>
Date: 30 Aug 90 08:12:03 GMT
References: <6120@chorus.fr>
Sender: news@chorus.fr
Lines: 26


 
>	I'm not going to quote the discussion because I didn't follow it
>	completely.
 
 My opinion on WP locked files is that they are easy to break. I friend of mine
 needed only two days of programming to write a utility that gave the password
 of any locked WP file. (Reading that file and building certain frequencytables.)
 
 So everybody who gets a copy of this c-source and knows how to use a c-compiler
 can read ALL documents written in WP. (Only restrictions: the length of the
 password has to be at least 1/5 of the document text. WP V4.1 and WP5.?)
 
 
 ATTENTION: I don't have the source. So don't ask me for a copy!
 	   Anyway if I had it I wouldn't give it because I might
 	   use WP one day myself...

Oops: Only posted it in alt.security last time. (Sorry, I don't post news
often so I do something wrong sometimes...)
 
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 e-mail: ferry@chorus.fr