mailing list archives
Re: MD5 To Be Considered Harmful Someday
From: Joel Maslak <jmaslak () antelope net>
Date: Tue, 7 Dec 2004 18:46:20 -0700 (MST)
On Mon, 6 Dec 2004, Dan Kaminsky wrote:
I've been doing some analysis on MD5 collision announced by Wang et al.
Short version: Yes, Virginia, there is no such thing as a safe hash
collision -- at least in a function that's specified to be
cryptographically secure. The full details may be acquired at the
The short-term fix seems to be something I've been recommending for a
Compute hashes with both SHA-1 and MD5.
The chance of one algorithm becoming compromised in the mid-term is
relatively high IMHO (I was responsible for a PKI system which had to keep
integrity for 20 year periods of time - not an easy task considering what
we don't know about the future). The chance of two becoming compromised
is relatively less. The chance of a problem with MD5 and SHA-1 allowing
two different files to have collisions in both algorithms in *BOTH* is
very very small.
Re: MD5 To Be Considered Harmful Someday Ruth A. Kramer (Dec 08)
MD5 To Be Considered Harmful Today Pavel Machek (Dec 08)
Re: MD5 To Be Considered Harmful Someday Joel Maslak (Dec 08)
RE: MD5 To Be Considered Harmful Someday Rager, Anton (Anton) (Dec 08)