http://www.irisa.fr/activity/new/007/branchpredictionattack004?set_language=en
No we we are not talking about Quantum Computer. We are talking about the Intel's Hyperthreading processor that is capable of executing two threads in the same cycle to better utilize the hardware. Unfortunately, running two threads in parallel on the same hardware CPU can lead to some information leakage. "One can manage to grab an indirect view on a thread execution from a spying thread that is executed simultaneously. This indirect information about its execution can allow to recover critical information such an encryption key." Onur Acıiçmez , Çetin Kaya Koç and Jean-Pierre Seifert were able to grab 508 bits of a 512 bit RSA Key. Now this is NOT a traditional brute-force attack and the cracker must be able to access the machine where some spyware has to be installed André Seznec of "Institut de recherche en informatique et systèmes aléatoires" (Irisa) was able to independently verify Onur's claims. "I've tried to validate the principle. It works! Beautiful case study by the way!" said André More details at: http://www.irisa.fr/activity/new/007/branchpredictionattack004?set_language=en _______________________________________________ FDE mailing list [email protected] http://www.xml-dev.com/mailman/listinfo/fde
