On Wed, 2014-05-14 at 22:26 +0200, gnupg-users-requ...@gnupg.org wrote: > If you want to run the temperature lower than the ambient > temperature > of the cosmos (3.2K), you have to add energy to run the heat pump -- > and the amount of energy required to run that heat pump will bring > your energy usage *above* that which you would've had if you'd just > run it in deep space at 3.2K.
Now where did you calculate that from? In fact arriving at a realistic estimate for the energy needed to brute force AES is really hard work. (Besides: Who can say for sure that we cannot get some bits from cryptoanalytic progress(two bits already crumbled). The cracking of DES was indeed a combination of analyzing some bits and the finishing up the rest by brute force.) IMHO you can run the calculations entirely at low temperature, whatever technology you use to get there. Then you only need contact to the warm world once to transmit the result(for negligible effort!). Look at it this way: A hypothetical nuclear organism in the sun might communicate with us about a result we calculate for it in order to crack some stellar cryptosystem. This doesn't force us to heat our computers to 10000 K and burn all this energy needed for calculating at high temperature. We could e.g. communicate the result to that being via pulsed gamma rays.... These discussions tend to get an interesting quasi-religious setting: 1.) We don't have anything other than AES (At least many people think so.) so one type of character says: We don't have anything else so it must be safe and we must defend that conviction against heresy. the other type (me) is equally mazed and says: They don't want to give us anything else, so it must be unsafe. Relying on them is heresy... May be I should switch sides entirely and go with the very practical asbestos longjohns. I really like the picture :-) _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users