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b84ad54a27 up +2 (+2 / 0) down 1981 posts registered Jan 21, 2013 foxyshadis Ars Praefectus reply Sun Nov 15, 2015 6:59 am Chuckstar wrote:One thing this article glossed over is that Alice and Bob need a separate authentication system to ensure that they are indeed talking to each otherShare twitter facebook linkedin Re:This should be obvious (Score:4, Informative) by Dionysus ( 12737 ) writes: on Saturday January 25, 2003 02:10PM (#5157502) Homepage If you have sensitive information, you want to encrypt it based on what you think will be difficult to crack years from now, not just todayThese are all remote possibilities, especially considering that in the newer more open era the gap has probably closed a bit between the NSA and the public - but if someone were actually worried about NSA snooping, they have to consider such thingsThis is a VERY intelligent refinement on the idea; the original TWINKLE had to use GaAs wafers and (partially due to the optical part of the design) was going to be VERY difficult to manufactureA key keeps increasing in value when its unsuspecting owner keeps using it after it has been crackedThat isn't true
Essentially it tells us exactly what we already knew - No encryption is perfect and a sufficiently dedicated and funded attacker could potentially read specific messages if they can obtain specific information to work withI still think that Adi significantly underestimates the costsResearchers have also provided evidence that the same side channel attack also works against RSA-2048, which require moderately more computation than RSA-1024It is also impossible to compute the shared secret key using only ga and gbFor most of the companies and other governments represented at the workshop, though, quantum-resistant algorithms remain the focusThis, however, poses a problemSuch vulnerabilities may suggest that quantum-safe systems arent yet ready for prime time, but Makarov, during a panel discussion, drew the opposite conclusionRegardless, NSA isn't secureIn other words, a 1024-bit key will only be as safe, after this cost-reduction, as a 1007-bit key is today for the same amount of money." You didn't read the primer [sans.org] we linked to An increase in 3 bits in symmetric keys corresponds to an increase of about 160 bits at this size of asymmetric key