Irreversible hashing algorithms

[sec_ware]

Hi

Good contribution, ildjarn. I haven't seen before that you mentioned
preimage attacks, but excellent that you did so now! Salting is a simple
and effective method to render rainbow tables useless - Rainbow tables
have no style anyway (except the storage method!)


Quite a while ago, we did discuss the compromise of MD5[1,2] and
SHA-1[3,4,5] on this site. There are references to the original articles,
and to papers of some PoC-like studies. It is all dated, of course.

I have to admit that I have not looked into it since a year, but:
Although the research papers are genuine and should to be taken
seriously, nothing spectacular happened the last 3 years (well, we
may ask the chinese or american government ) as far as I know.
I am happy to be corrected.

Cheers

P.s. As a side note: the references to antionline-articles in the
posts below are not usable anymore (since Jupitermedia changed
the 'layout' of this site a while ago).

[1] http://antionline.com/showthread.php?t=269146
[2] http://antionline.com/showthread.php?t=261884
[3] http://antionline.com/showthread.php?t=263481
[4] http://antionline.com/showthread.php?t=267248
[5] http://antionline.com/showthread.php?t=273285




Cheers