On Mon, Nov 28, 2005 at 03:32:21PM +1000, Anthony Towns wrote: > Knapsack cryptograph's "provably" secure (in that a general solution > is NP),
You mean NP-_complete_. (Sorting is also NP, but not NP-complete. NP is "can be done in polynomial time by a non-deterministic Turing machine, so anything polynomial by a normal machine is also NP. "Foo is NP-complete" is "any NP problem can be polynomially reduced to foo", or in other words, if there is a normal machine that does foo in polynomial time, all NP problems can be done in polynomial time.) -- Lionel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]