On Mon, 3 Dec 2007, Norberto Meijome wrote:

Hi everyone,

Not sure if you've read http://www.win.tue.nl/hashclash/SoftIntCodeSign/ .

should some kind of advisory be sent to advise people not to rely solely on MD5 
checksums? Maybe an update to the man page is due ? :

"
MD5 has not yet (2001-09-03) been broken, but sufficient attacks have
    been made that its security is in some doubt.  The attacks on MD5 are in
    the nature of finding ``collisions'' -- that is, multiple inputs which
    hash to the same value; it is still unlikely for an attacker to be able
    to determine the exact original input given a hash value.
"

Some measures are already taken:
- FreeBSD ports use not only MD5 but SHA256 additionaly
- Same applied for FreeBSD ISO images

Best Regards,

Janos Mohacsi
Network Engineer, Research Associate, Head of Network Planning and Projects
NIIF/HUNGARNET, HUNGARY
Key 70EF9882: DEC2 C685 1ED4 C95A 145F  4300 6F64 7B00 70EF 9882


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