Bugtraq mailing list archives
Re: MD5 To Be Considered Harmful Someday
From: Dan Kaminsky <dan () doxpara com>
Date: Wed, 08 Dec 2004 12:52:42 -0800
Paul Wouters wrote:
Actually, this greatly increases the chance of a collision. 123456789 will collide with 123456780.On Tue, 7 Dec 2004, Gandalf The White wrote:What I am worried about is the integrity of MD5 hashed passwords. ThisIt does not matter that I don't know the correct password, I have a passwordthat collides into the correct hash. I can log into the system with my generated password.Can't we just truncate the password to 8 characters like in the old daysbefore doing the MD5 hash? It will greatly reduce the chance of a collision.In fact, I am not even sure my systems don't do this already.
It is unlikely we'll find any ASCII readable payload that collide through Wang's search technique.
--Dan
Current thread:
- Re: MD5 To Be Considered Harmful Someday, (continued)
- Re: MD5 To Be Considered Harmful Someday Gandalf The White (Dec 07)
- Re: MD5 To Be Considered Harmful Someday Tim (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Dragos Ruiu (Dec 08)
- Re: MD5 To Be Considered Harmful Someday David F. Skoll (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Joel Maslak (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Steve Friedl (Dec 08)
- RE: MD5 To Be Considered Harmful Someday David Schwartz (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Gandalf The White (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Keith Oxenrider (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Paul Wouters (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Dan Kaminsky (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Paul Wouters (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Adam Shostack (Dec 09)
- Re: MD5 To Be Considered Harmful Someday Tim (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Solar Designer (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Dan Kaminsky (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Pavel Kankovsky (Dec 09)
- Re: MD5 To Be Considered Harmful Someday Solar Designer (Dec 13)
- Re: MD5 To Be Considered Harmful Someday Gandalf The White (Dec 07)
- Re: MD5 To Be Considered Harmful Someday George Georgalis (Dec 08)
- Re: MD5 To Be Considered Harmful Someday Dan Kaminsky (Dec 08)