Article View: sci.crypt
Article #2454Re: RIPEM vs. PGP
From: Steven Bellovin
Date: Thu, 24 Dec 1992 15:27
Date: Thu, 24 Dec 1992 15:27
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In article <842074929DN5.61R@tanda.isis.org>, marc@tanda.isis.org (Marc Thibault) writes: > Why not wait (or not) until the RSA patent expires and join the > rest of the world with PGP? The IDEA is crypto tech that everybody > understands and doesn't have any secret design parameters. It's > also a heck of a lot easier to implement than the DES. Well, it's 7 years till the RSA patent expires. As for IDEA -- it's patented, too, which certainly restricts the use of PGP for commercial purposes. And at least some of DES's secret design parameters are now known to have strengthened it. FEAL was *much* weaker than DES because it didn't possess those secret attributes. That you don't understand something about a cryptosystem doesn't mean that it's necessarily weaker. It just means that the designers know more than you do.
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<1992Dec24.152727.11817@ulysses.att.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!att!dptg!ulysses!ulysses!smbReferences:
<hmiller.724397340@lucpul.it.luc.edu> <1992Dec15.110814.27222@netcom.com> <0#=rh9n@dixie.com> <1992Dec16.173333.12868@netcom.com> <1992Dec16.115438@kuttner.sfc.sony.com> <842074929DN5.61R@tanda.isis.org>Show Full Headers
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!att!dptg!ulysses!ulysses!smb From: smb@research.att.com (Steven Bellovin) Subject: Re: RIPEM vs. PGP Message-ID: <1992Dec24.152727.11817@ulysses.att.com> Date: Thu, 24 Dec 1992 15:27:27 GMT Distribution: na References: <hmiller.724397340@lucpul.it.luc.edu> <1992Dec15.110814.27222@netcom.com> <0#=rh9n@dixie.com> <1992Dec16.173333.12868@netcom.com> <1992Dec16.115438@kuttner.sfc.sony.com> <842074929DN5.61R@tanda.isis.org> Organization: AT&T Bell Laboratories Lines: 13