Re: Question related to the Hash-Algorithms used for the Ports

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02-22-2008, 12:40 PM

Sebastian Rother

Posts: n/a

Re: Question related to the Hash-Algorithms used for the Ports

On Thu, 24 Aug 2006 12:53:35 -0600
kjell@pintday.org wrote:

> > During a report of the german news-website "Heise.de" experts
> > (Christian Rechberger and Christophe De Cannihre) on the Crypto2006 (a
> > conference) talked about at least one practical attack aggainst SHA-1.
>
> Are you referring to a collision attack, or a second preimage attack?
>
> i.e. can an attacker produce two files with the same SHA-1 hash,
> or can they construct a file that matches a given SHA-1?
>
> There's a huge difference, especially in the case of the ports tree.

Well my references are those websites/files (I also think they explain
it much better then I could do it):

First notice:
http://www.heise-security.co.uk/news/77244

Fund a report wich seams to confirm that there`s a problem:
http://www.ni.din.de/sixcms/media.ph..._statement_on_
SHA-1_May2006.pdf?backend_call=true#search=%22crypto20 06%20SHA1%22

But I wans`t able to find PDFs written by the sicentists.
So if anybody finds those PDF (well "Crypto2006 Website" seams not to
contain them) pls let me know.

Kind regards,
Sebastian

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Re: Question related to the Hash-Algorithms used for the Ports