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- Path: sparky!uunet!cs.utexas.edu!ut-emx!tivoli!todd
- From: todd@palomar.tivoli.com
- Newsgroups: sci.crypt
- Subject: Re: How fast is DES?
- Message-ID: <TODD.93Jan11151650@palomar.tivoli.com>
- Date: 11 Jan 93 06:16:50 GMT
- Sender: news@tivoli.UUCP
- Distribution: sci
- Organization: Tivoli Systems, Inc.
- Lines: 23
-
-
- In <1494@eouk9.eoe.co.uk>, Andrew Haley (ahaley@eoe.co.uk) writes
-
- > Another possibility is using a hash function such as MD4 as a stream
- > cipher generator. One advantage of using stream ciphers is that the
- > stream can be generated offline, so that when you want to transmit a
- > message it can be done instantly. The total processing time to
- > encrypt will not be any less, but the stream can be generated while
- > the processor would otherwise be idle, effectively reducing the
- > encryption overhead to zero.
-
- I'm not sure how practical this technique is, I believe that IBM owns
- a patent on it. And it won't be expiring for even further in the
- future than the RSA patents!!!
-
- --
-
- Todd
- --
- Todd Smith TIVOLI Systems, Inc.
- todd@tivoli.com 6034 West Courtyard Dr.
- Suite 210
- (512) 794-9070 [794-0623 fax] Austin, TX 78730
-