[107942] in Cypherpunks

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Duke/HP CPU average 3.75 hrs to crack 40-bit crypto

daemon@ATHENA.MIT.EDU (Trei, Peter)
Fri Jan 29 11:27:57 1999

From: "Trei, Peter" <ptrei@securitydynamics.com>
To: "'vin@shore.net'" <vin@shore.net>
Cc: cypherpunks@algebra.com
Date: Fri, 29 Jan 1999 11:14:47 -0500
Reply-To: "Trei, Peter" <ptrei@securitydynamics.com>

Vin wrote:

>DURHAM, N.C. - Duke University computer science researchers found that
>using an experimental computer, they could "crack"within an average 3.75
>hours the encryption that protects such privately held information as
>credit card account numbers on the Internet.

Of course: 

* Ian Goldberg broke 40 bit RC5 two years ago, in 3.5 hours.

* The Deep Crack/Distributed.net combo can exhaust a 40 bit DES
  key space in under 5 seconds. Deep Crack alone could do it in 
  about 15 seconds.

* A single hacker with a high end Windoze box can
  crack 40 bit DES over a long weekend.

The point is: 40 bit encryption is dead, dead, dead.

So where's the story?

Peter
 


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