> No, we don't. Response: http://nsa.gov1.info/utah-data-center/
On 6/9/2014 12:09 PM, Robert J. Hansen wrote: >> disturbing. We have processors bugged during delivery intercepts, at >> least one facility here in the US (if we don't count Google) with enough >> computing power and resources to pull off decrypting SHA512 without >> breaking a sweat, etc. etc. > > No, we don't. > > At present, the best way to attack SHA512 is to do a birthday attack of > complexity roughly 2**256. There are a lot of laws of physics that > compellingly argue that doing a computation of that complexity would > require more energy than the Sun will put out over its entire lifetime. > > You may want to consider having a little more skepticism in your > sources. At least on this particular count, your source is one hundred > percent wrong. > >> to the task of protecting activists. If the NSA can break 1024 bit >> encryption, they have almost certainly already hacked SHA512. > > Breaking RSA-1024 is considered equivalent to an attack of complexity > 2**80. That's *a lot*. A few years ago a group of enthusiasts used a > large distributed network and over a year of processing time to mount an > attack of complexity 2**64. 2**80 is a factor of 64,000 times harder. > No one knows whether RSA-1024 has been broken: all that we know is it's > time is limited, and if it hasn't yet been broken it's a question of > when and not if. > > But SHA512, even for a pure birthday collision (which is pretty much > useless in terms of how OpenPGP gets used), is at best a 2**256 attack. > That's a factor of 2**176 harder. In plain English, that's a factor of > > 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 > > harder. That's a *lot*. > > > _______________________________________________ > enigmail-users mailing list > enigmail-users@enigmail.net > To unsubscribe or make changes to your subscription click here: > https://admin.hostpoint.ch/mailman/listinfo/enigmail-users_enigmail.net > _______________________________________________ enigmail-users mailing list enigmail-users@enigmail.net To unsubscribe or make changes to your subscription click here: https://admin.hostpoint.ch/mailman/listinfo/enigmail-users_enigmail.net
