Full Disclosure mailing list archives
Re: Creating a rogue CA certificate
From: chort <chort0 () gmail com>
Date: Tue, 30 Dec 2008 16:49:43 -0800
On Tue, Dec 30, 2008 at 4:27 PM, <Valdis.Kletnieks () vt edu> wrote:
On Tue, 30 Dec 2008 16:19:31 PST, chort said:The viability of that approach depends on how much the code depends on the systems being clustered together over low-latency interconnects. 4000 machines spread all across the internet separated by 300ms of latency is not the same thing as 4000 machines in the same room running a cluster OS.They give a hint that it's *highly* parallel code: "This part is not suited for the PS3s SPU cores due to the large memory demands and the high number of branches in the software execution flow." Presumably, if the hit that a lot of branches create is bad, the *huge* hit of even an Infiniband interconnect would be fatal...
Ah, you're nit-picking on the fact that I mistakenly mentioned the actual collision rather than the birthday attack, so yes my bad for being careless with my terminology. The more time-consuming part of the computation was the birthday attack, which is what the PS3s _are_ good at. You're right that the collision blocks worked better on machines with more RAM and instruction sets/pipelines designed for more branching. In any case, we don't disagree that it's possible to conduct the attack with a moderate-sized botnet. We also agree that nutd0rk has no idea what he's talking about (not that he ever does), so this discussion seems to be heading no where. -- chort _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Creating a rogue CA certificate, (continued)
- Re: Creating a rogue CA certificate Ureleet (Dec 30)
- Re: Creating a rogue CA certificate Nelson Murilo (Dec 30)
- Re: Creating a rogue CA certificate Ureleet (Dec 30)
- Re: Creating a rogue CA certificate Valdis . Kletnieks (Dec 30)
- Re: Creating a rogue CA certificate don bailey (Dec 30)
- Re: Creating a rogue CA certificate n3td3v (Dec 30)
- Re: Creating a rogue CA certificate chort (Dec 30)
- Re: Creating a rogue CA certificate Valdis . Kletnieks (Dec 30)
- Re: Creating a rogue CA certificate chort (Dec 30)
- Re: Creating a rogue CA certificate Valdis . Kletnieks (Dec 30)
- Re: Creating a rogue CA certificate chort (Dec 30)
- Re: Creating a rogue CA certificate Ureleet (Dec 31)
- Re: Creating a rogue CA certificate Valdis . Kletnieks (Dec 30)
- Re: Creating a rogue CA certificate Valdis . Kletnieks (Dec 31)