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- Newsgroups: comp.security.misc
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!biersch!jru
- From: jru@Comtech.com (Jimmy R. Upton)
- Subject: Re: encryption for wireless networks
- Message-ID: <1992Nov21.234309.1117@Comtech.com>
- Organization: Comtech Labs Inc, Palo Alto
- References: <1992Nov19.235934.7362@pcnntp.apple.com>
- Date: Sat, 21 Nov 1992 23:43:09 GMT
- Lines: 51
-
- In article <1992Nov19.235934.7362@pcnntp.apple.com> normile.j@applelink@apple.com (James Normile) writes:
- >Hi there,
- >I'd appreciate any information on practical techniques for encrypting data on
- >wireless networks, are standards developing?, is any technology available?
- >Thanks
- >James Normile
-
- I am responsible for the development of an encryption chip here at Comtech
- called PED (the Programmable Encryption Device). It is a single chip that
- contains all the necessary support for the entire range of cryptographic
- functions: secret key, public key, random numbers, hashing, etc. The chip
- is under development and an emulator will be available in 1Q93 and prototype
- chips in 3Q93.
-
- The chip provides all the crypto support - if you are asking about protocol
- standards, I am not aware of any standards that have gained wide acceptance
- for wireless networks. If you want to encrypt your data at layer 3 or 4
- of the OSI model then standards have been established in the U.S and are
- being submitted for international standards. None of that however would
- be specific to wireless communications. Most (if not all) standards work
- attempts to be algorithm non-specific. Therefore you have two selections
- to make - one to select the protocols and one to select the actual crypto
- to use. If you wish to imbed the crypto at a low level in your wireless
- network, you may very well establish your own "protocol" which would be
- simple and specific to your product. Then you still need the hardware
- to perform the encryption. You can either go buy all the components to
- put all that together or you can get a single chip that does all the
- crypto. To the best of my knowledge we are the only company offering such
- a single chip solution.
-
- NIST (National Institute of Standards and Technology) in 1977 established
- and encryption standard called DES (the Data Encryption Standard). They
- currently have in draft form a DSS (Digital Signature Standard) and a SHS
- (Secure Hashing Standard). The do not currently have a standard for using
- public key to handle key management. There are several options available
- for that. So, in terms of crytographic algorithms, there is a sufficient
- suite of "standards" to provide what you would need. All of these are
- implemented in PED.
-
- Your question did not indicate what level of experience you have in these
- areas. If my response was too tutorial, my apologies. If I can provide
- additional assistance or explanation, please let me know.
-
- Jimmy Upton
- Comtech Labs
- (415)813-4546
- jru@Comtech.com
-
- P.S. I attempted to mail this response directly to you and save bandwith.
- However you return address appears to be corrupted. If you wish to
- continue this dialogue please send me your address. Thanks.
-