On Monday 12 December 2011, Johnny Hughes <johnny@xxxxxxxxxx> wrote:
> There are known Collision Attacks for the MD5SUM method of hashing,
> so it is possible to modify a file and make it have the same MD5SUM
> as another file. See this link for details on Collision Attacks:
>
> http://en.wikipedia.org/wiki/Collision_attack
>
> Recommendation from the US-CERT concerning MD5SUM hashes:
>
> http://www.kb.cert.org/vuls/id/836068
>
> Based on the above information, the CentOS team will be using
> sha256sum (sha-2) and not md5sum to generate future hashes for
> posting on our e-mail announcements to the CentOS Announce Mailing
> List.
MD5 is certainly broken, but would it be sufficient to go to sha1sum?
According to my quick testing, sha256sum takes twice as long as sha1sum.
--
Yves Bellefeuille <yan@xxxxxxxx>
"La Esperanta Civito ne rifuzas anticipe la kunlaboron de erarintoj, se
ili konscias pri sia eraro." -- Heroldo Komunikas, n-ro 473.
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