A couple of things to note from mr schneider's blog warning... Fact..until it's published and the method handed out and it's replicated independently, SHA-1 is NOT broken.
Fact..the people posting here missed a fairly important bit of schneider's blog-post, and I quote: >>The paper isn't generally available yet. At this point I can't tell if the attack is real. read it again: >>AT THIS POINT I CAN'T TELL IF THE ATTACK IS REAL. (Translation, there is no proof that the sky is falling. Yes, the researchers are reputable...but the scientific method of repeatable results with published methods needs to verifiy it) Fact: If the paper and method are sound...the sky STILL is not falling (although it will be raining pretty darned hard)...2^69 operations...to get a collision...how many hours of current gen cpu cycles?? (some notes from the blog thread postulate a 4 ghz machine would need 4000 years...4000 CPU@ 4 ghz ea ...1 year.) Based on the rumors, would I entrust state secrets to SHA-1? Nope. Digital signature on a dosument authorizing the use of Nukes against Utah? Nope. Failing that level of protection requirement, for the time being, of course I would, and will. Bart Lansing [EMAIL PROTECTED] wrote on 02/16/2005 05:59:05 AM: > On Wed, 16 Feb 2005 12:26:33 +0100, Polarizer <[EMAIL PROTECTED]> wrote: > > > I'am a little curious on the impacts. > > > > Any suggestions appreciated. > > PKI relies on certificates, certificates relies on SHA-1, > pretty much all digital signing is done via SHA-1. > > Little bit outdated, but for basic overview: > > http://www.cryptography.com/cnews/hash.html > > all the best, > > W. > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.netsys.com/full-disclosure-charter.html CONFIDENTIALITY NOTICE: This is a transmission from Kohl's Department Stores, Inc. and may contain information which is confidential and proprietary. If you are not the addressee, any disclosure, copying or distribution or use of the contents of this message is expressly prohibited. If you have received this transmission in error, please destroy it and notify us immediately at 262-703-7000. CAUTION: Internet and e-mail communications are Kohl's property and Kohl's reserves the right to retrieve and read any message created, sent and received. Kohl's reserves the right to monitor messages by authorized Kohl's Associates at any time without any further consent. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
