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- Newsgroups: sci.crypt
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!agate!dog.ee.lbl.gov!news!manta!herman
- From: herman@nosc.mil (John W. Herman)
- Subject: Re: DES (Was: Re: 800MHz
- Message-ID: <herman.727665056@phage>
- Sender: usenet@nosc.mil (Network News)
- Organization: Naval Ocean Systems Center, San Diego, CA
- References: <1444.204.uupcb@ssr.com> <1993Jan9.163011.23230@csi.uottawa.ca> <1993Jan10.050811.3740@ils.nwu.edu> <1993Jan10.060013.4644@csi.uottawa.ca> <1jna3cINNeed@roche.csl.sri.com>
- Date: Fri, 22 Jan 1993 01:10:56 GMT
- Lines: 32
-
- boucher@csl.sri.com (Peter K. Boucher) writes:
-
- >cbbrowne@csi.uottawa.ca (Christopher Browne) writes:
-
- *** Stuff deleted ***
-
- >So, 512-bit RSA keys aren't looking so great anymore. 1024-bit
- >keys seem barely adequate in this light. 2K- to 3K-bit RSA keys
- >seem prudent to protect any data that you are seriously
- >concerned might be attacked by a big-budget ($25G) enemy.
-
- Despite what Peter said above, $25G programs are not easy to start
- or stop, witness the AIDS research effort. That effort is still
- ramping up and, despite the great political pressure, already has
- more money appropriated than can be wisely spent. That situation
- is much like the defense buildup in the early 80's. More dollars
- than sense. A group with $25G to spend would have the same problem,
- years and years before a solution would be available. With that
- level of funding, mathematicians would have to be trained and
- algorithms developed. There would also need to be a period for
- ramping down of the effort and the money to pay for it. The
- result of the effort would likely eliminate RSA (or DES or whatever)
- as an encruption technique. In all of its years of existance, it is
- unlikely that NSA has spent more than $50G or $60G on this problem,
- though that is only a guess on my part. They have got lots of other
- irons in the fire, and so do the French, and so does the medical
- community.
- Also, regarding the French Intelligence Service, my understanding from
- newspapers is that if they come across something in the pursuit of their
- mission that would be useful to their industrial service, they will
- share the information with them. Industrial intelligence is not a
- primary mission.
-