Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

1024-bit RSA encryption cracked by carefully starving CPU of electricity
Engadget ^ | 3/9/10 | Sean Hollister

Posted on 03/09/2010 7:05:31 AM PST by dangerdoc

Since 1977, RSA public-key encryption has protected privacy and verified authenticity when using computers, gadgets and web browsers around the globe, with only the most brutish of brute force efforts (and 1,500 years of processing time) felling its 768-bit variety earlier this year. Now, three eggheads (or Wolverines, as it were) at the University of Michigan claim they can break it simply by tweaking a device's power supply. By fluctuating the voltage to the CPU such that it generated a single hardware error per clock cycle, they found that they could cause the server to flip single bits of the private key at a time, allowing them to slowly piece together the password. With a small cluster of 81 Pentium 4 chips and 104 hours of processing time, they were able to successfully hack 1024-bit encryption in OpenSSL on a SPARC-based system, without damaging the computer, leaving a single trace or ending human life as we know it. That's why they're presenting a paper at the Design, Automation and Test conference this week in Europe, and that's why -- until RSA hopefully fixes the flaw -- you should keep a close eye on your server room's power supply.


TOPICS: Computers/Internet
KEYWORDS:
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-64 last
To: zeugma

Reply when you can. There’s no hurry. Just do what you enjoy.

Hank


61 posted on 03/10/2010 8:13:50 AM PST by Hank Kerchief
[ Post Reply | Private Reply | To 60 | View Replies]

To: dangerdoc

Wow.


62 posted on 03/10/2010 8:15:26 AM PST by montyspython ("I don't believe in 'no win' scenarios." - James T. Kirk)
[ Post Reply | Private Reply | To 1 | View Replies]

To: zeugma

Did you just kick Heisenberg in the balls?


63 posted on 03/10/2010 8:19:32 AM PST by montyspython ("I don't believe in 'no win' scenarios." - James T. Kirk)
[ Post Reply | Private Reply | To 30 | View Replies]

To: montyspython
Did you just kick Heisenberg in the balls?

I think I tried, but the more I think about it, the more uncertain I am that it's a good idea.

64 posted on 03/10/2010 9:46:39 AM PST by zeugma (Proofread a page a day: http://www.pgdp.net/)
[ Post Reply | Private Reply | To 63 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-64 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson