The RSA Challenges - RIP

[Citrix]

Originally Posted by Cruelty

I wonder what distributed.net will do now

The Certicom ECC challenge is still open.
http://www.certicom.com/index.php?ac...s,ecc_solution

[rogue]

Originally Posted by Cruelty

I wonder what distributed.net will do now

There goes their chance of solving RC-72 in my lifetime. They are nearly 5 years into the search and have only tested less than 1/2 % of the keyspace.

[jasonp]

Originally Posted by rogue

There goes their chance of solving RC-72 in my lifetime. They are nearly 5 years into the search and have only tested less than 1/2 % of the keyspace.

This has always bothered me. They get 100,000 computers to brute force RC5-64, and it takes years to do so, and yet when they start RC5-72 nobody asks what (256 * years) comes out to? Did they think they'd get 256x the number of cores searching within a few years?

I guess the utility of a distributed search is something everyone has to decide for themselves, but this strikes me as fairly wasteful.

jasonp

[R.D. Silverman]

Originally Posted by Visu

What liability? The US$605,000 they would have to give out if someone

factorises the rest of the challenge numbers? This is unlikely to happen

unless (1) happens.

They are still required to carry the liability on their balance sheet even
if it is not part of the current accounts payable.

[Andi47]

Originally Posted by jasonp

This has always bothered me. They get 100,000 computers to brute force RC5-64, and it takes years to do so, and yet when they start RC5-72 nobody asks what (256 * years) comes out to? Did they think they'd get 256x the number of cores searching within a few years?

I guess the utility of a distributed search is something everyone has to decide for themselves, but this strikes me as fairly wasteful.

jasonp

maybe now some of the "100.000" computers move to GIMPS....

[ColdFury]

Originally Posted by Citrix

The Certicom ECC challenge is still open.
http://www.certicom.com/index.php?ac...s,ecc_solution

I'm currently working on a ECC core that can be used for D.net. If I can get good performance out of it I'm going to contact D.net to propose setting up an attack on the challenge.