* Andrew Farmer: > Especially considering that there aren't enough atoms in the universe to > store all that precalculated data, nor enough energy to do all the > calculations.
Typically, such estimates ignore the possibilities of quantum superpositions. > (Schneier says that there's enough energy in a supernova to do about > 2^224 operations on a 100% efficient computer. And remember that AES > or PGP take multiple operations to calculate results...) Schneier's estimates are wrong. They are based on the incorrect assumption that all bit operations are irreversible and entropy-increasing. There is no hard evidence that this is true in general. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
