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Article #3112

Re: Zimmermann's responses to Sidelnikov's PGP critique

#3112
From: Vesselin Bontchev
Date: Mon, 11 Jan 1993 22:47
27 lines
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tytso@ATHENA.MIT.EDU (Theodore Ts'o) writes:

>    >>    - when considering the hashing function as the automatic  device
>    >>without output,  it  is  enough  simply possible to construct the
>    >>image of reverse automatic device and with using  the  blanks  in
>    >>text files  (or  free fields in some standard formats as in DBF),
>    >>to  compensate  the  hashing function  at  changed  file  to  former
>    >>significance.

> I interpreted this to mean that Dr. Sidelnikov believes that there is a
> design flaw in MD5, which is the hashing function used by PGP.  Perhaps

I don't believe even that... Look, suppose -you- have found a flaw in
MD5 and were to comment about PGP. What would you say? "The hashing
function in PGP seems simple enough to defeat"? No, you would say "PGP
uses MD5 as a hashing function and as it has been shown (reference my
paper, or the results of my lab or whatever), it is easy enough to
break it".... My guess here is that Dr. Sidelnikov either hasn't
noticed that PGP uses MD5, or does not know what MD5 is...

Regards,
Vesselin
-- 
Vesselin Vladimirov Bontchev          Virus Test Center, University of Hamburg
Tel.:+49-40-54715-224, Fax: +49-40-54715-226      Fachbereich Informatik - AGN
< PGP 2.1 public key available on request. > Vogt-Koelln-Strasse 30, rm. 107 C
e-mail: bontchev@fbihh.informatik.uni-hamburg.de    D-2000 Hamburg 54, Germany
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From: bontchev@fbihh.informatik.uni-hamburg.de (Vesselin Bontchev)
Subject: Re: Zimmermann's responses to Sidelnikov's PGP critique
Message-ID: <bontchev.726792428@fbihh>
Sender: news@informatik.uni-hamburg.de (Mr. News)
Reply-To: bontchev@fbihh.informatik.uni-hamburg.de
Organization: Virus Test Center, University of Hamburg
References: <1993Jan8.223337.14551@athena.mit.edu>
Date: 11 Jan 93 22:47:08 GMT
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