Re: Impossible compression still not possible. [was RE: Debunking the PGP backdoor myth for good. [was RE: Hypothesis: PGP backdoor (was: A security bug in PGP products?)]]

2006-09-03 Thread John Denker
Dave Korn asked: Is it *necessarily* the case that /any/ polynomial of log N /necessarily/ grows slower than N? Yes. Hint: L'Hôpital's rule. if P(x)==e^(2x) That's not a polynomial. x^Q is a polynomial. Q^x is not. -

Impossible compression still not possible. [was RE: Debunking the PGP backdoor myth for good. [was RE: Hypothesis: PGP backdoor (was: A security bug in PGP products?)]]

2006-08-30 Thread Dave Korn
On 28 August 2006 15:30, Ondrej Mikle wrote: Ad. compression algorithm: I conjecture there exists an algorithm (not necessarily *finite*) that can compress large numbers (strings/files/...) into small space, more precisely, it can compress number that is N bytes long into O(P(log N)) bytes,

Re: Impossible compression still not possible. [was RE: Debunking the PGP backdoor myth for good. [was RE: Hypothesis: PGP backdoor (was: A security bug in PGP products?)]]

2006-08-30 Thread Ondrej Mikle
We are both talking about the same thing :-) I am not saying there is a finite deterministic algorithm to compress every string into small space, there isn't. BTW, thanks for There is ***NO*** way round the counting theory. :-) All I wanted to say is: For a specific structure (e.g. movie,

RE: Impossible compression still not possible. [was RE: Debunking the PGP backdoor myth for good. [was RE: Hypothesis: PGP backdoor (was: A security bug in PGP products?)]]

2006-08-30 Thread Dave Korn
On 28 August 2006 17:12, Ondrej Mikle wrote: We are both talking about the same thing :-) Oh! I am not saying there is a finite deterministic algorithm to compress every string into small space, there isn't. BTW, thanks for There is ***NO*** way round the counting theory. :-) All I