Article View: sci.crypt
Article #1800Re: Cryptography and P=NP
From: annan
Date: Mon, 16 Nov 1992 08:45
Date: Mon, 16 Nov 1992 08:45
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1734 bytes
In article <1e7fvdINN87s@iskut.ucs.ubc.ca>, ramsay@math.ubc.ca (Keith Ramsay) writes:
> In article <PHR.92Nov15203840@napa.telebit.com> phr@telebit.com
> (Paul Rubin) writes:
>>It is true that if P=NP then all cryptography everywhere (not just RSA)
>>is dead; but at this point I wouldn't take Swart's claims seriously
>>without seeing some consensus among complexity efforts that unlike
>>his previous attempts, his latest effort is free of bugs.
>
> Mathematics would also be placed in a surprising position by P=NP.
> P=NP implies that there is an algorithm which, given a theorem
> expressed formally in ZF, say, and a number n, either gives a formal
> proof of the theorem of length at most n, or shows that there is none,
> and which would take time bounded by some polynomial in n. It wouldn't
> *necessarily* put us all out of the math research business, but....
And remember, proving P=NP doesn't necessarily mean finding such an algorithm,
merely proving it exists.
--
James Annan.
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[ "The only good Tory is a lavatory" ]
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<1992Nov15.110945.19939@ringer.cs.utsa.edu> <PHR.92Nov15203840@napa.telebit.com> <1e7fvdINN87s@iskut.ucs.ubc.ca>Show Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!agate!doc.ic.ac.uk!uknet!comlab.ox.ac.uk!oxuniv!annan From: annan@vax.oxford.ac.uk Newsgroups: sci.crypt,sci.math,comp.theory Subject: Re: Cryptography and P=NP Message-ID: <1992Nov16.084503.10141@vax.oxford.ac.uk> Date: 16 Nov 92 08:45:03 GMT References: <1992Nov15.110945.19939@ringer.cs.utsa.edu> <PHR.92Nov15203840@napa.telebit.com> <1e7fvdINN87s@iskut.ucs.ubc.ca> Distribution: inet Organization: Oxford University VAX 6620 Lines: 23