On Mon, Feb 23, 2009 at 07:53:54PM EST, Ron Johnson wrote: > On 02/23/2009 06:12 PM, Chris Jones wrote: > >On Mon, Feb 23, 2009 at 02:34:26PM EST, Ron Johnson wrote:
> >>Given enough time, and resources, *nothing* is untouchable. It's > >>just a matter of whether They think that the time-effort is worth > >>being spent on *you*. > > > >Like, twenty times the estimated life of the universe.. a thousand > >times its mass in silicon chips. Everyone involved long dead anyways. > http://en.wikipedia.org/wiki/EFF_DES_cracker > When DES was approved as a federal standard in 1976, a machine > fast enough to test that many keys in a reasonable time would have > cost an unreasonable amount of money to build. > > http://en.wikipedia.org/wiki/EFF_DES_cracker#Technology > Advanced Wireless Technologies built 1856 custom ASIC DES chips > (called Deep Crack or AWT-4500), housed on 29 circuit boards of 64 > chips each. The boards are then fitted in six cabinets. The search > is coordinated by a single PC which assigns ranges of keys to the > chips. The entire machine was capable of testing over 90 billion > keys per second. It would take about 9 days to test every possible > key at that rate. On average, the correct key would be found in > half that time. > > In the 11 years since Deep Crack, IC process technology has improved > by leaps and bounds, and the NSA can throw a whole lot of h/w in > parallel at brute-force attacks. > > Combine that with Side Channel Attacks (easy if you have the machine > that did the encryption, and which can discover part of the key) and > mathematical analysis to determine even more of the key, you suddenly > see something feasible. Obsolete sources my end.. Thanks for the heads-up. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org