earlw@pesnta.UUCP (Earl Wallace) (02/11/85)
I have a project in mind for the DES chips if they are easy to use.
I want to stuff the DES box in between the computer port and the modem (all
RS232C).
RS-232C from the ------ DES Box ------- Modem --- telephone line
Computer
The questions:
How much do the chips cost?
Were can you buy them?
Is it worth the effort?
--
Earl Wallace
UUCP: ..!{ihnp4, ucbvax!hplabs, ucbvax!twg}!pesnta!earlw
PHONE: (408) 727-5540 x230
USMAIL: Perkin-Elmer Corp., Santa Clara, Calif. 95054outer@utcsri.UUCP (Richard Outerbridge) (02/15/85)
> The questions: > How much do the chips cost? > Were can you buy them? > Is it worth the effort? The recent book *Security for Computer Networks: An Introduction to Data Security in Teleprocessing and Electronic Funds Transfer*, by D.W. Davies and W.L. Price (New York: John Wiley & Sons, 1984) has a section on commercially available DES hardware (from the TOC): 3.6 Implementations of the Data Encryption Standard 76 Single Chips 77 Multiple-chip sets 78 Microprocessor implementations 78 Circuit boards for the DES 79 Tamper-resistant security modules 80 They give manufacturers, data rates, modes of operation, processors they are designed for use with, etc. Sorry, no prices. It's only worth it if you need the speed or the transparency. Some of the devices inmplement rudimentary key management functions as well. -- Richard Outerbridge <outer@utcsrgv.UUCP> 416 961-4757 Payload Deliveries: N 41 39'36", W 79 23'42", Elev. 106.47m.
phil@amdcad.UUCP (Phil Ngai) (02/15/85)
> I have a project in mind for the DES chips if they are easy to use. > I want to stuff the DES box in between the computer port and the modem (all > RS232C). Using DES on a modem sounds like the slowest mode you could ever want. I don't know if you couldn't do it in software but if you want to do it in hardware there are at least two companies that make them, AMD and Western Digital. Note that DES is usually done on 64 bits or 8 bytes at a time. AMD's chip allows you to do 8 bits at a time, with a corresponding loss in throughput, which you presumably don't care about or you would use the 64 bits at a time mode. Our marketing blurbs talk about how we're pushing the chips but I am not at liberty to reveal what kind of pricing is available. You should talk to your salesman. He might even get you a sample. Or I might if you're really desperate. Unfortunately I don't know much about WD's except that they advertise one. Probably other people do too but I haven't been following the market. -- This is my opinion, I guess. Phil Ngai (408) 749-5720 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil ARPA: amdcad!phil@decwrl.ARPA
henry@utzoo.UUCP (Henry Spencer) (02/21/85)
I'm told that sales of the DES chips have been disappointing. This
would imply high prices and perhaps limited availability.
--
Henry Spencer @ U of Toronto Zoology
{allegra,ihnp4,linus,decvax}!utzoo!henrysc@security.UUCP (Stuart Cohnen) (02/22/85)
I have recently completed an evaluation of the Intellicom Data Security system This uses the AMD DES chip to encrypt both comm (via rs232) and disks (both hard and soft ) on a PC or look-alike. I have been able to send 9600baud full duplex through this box w/o any problems. No price yet, as the product has not hit the market. But to use you simply insert between your terminal (or PC) and your modem. This unit does all 4 types of encyrption (block mode, stream mode..etc) .No it has not been certified by the DOD CSC and they don't intend to be . Stu (...!linus!security!sc) (sac@mitre-bedford.arpa)
phil@amdcad.UUCP (Phil Ngai) (02/24/85)
> I have recently completed an evaluation of the Intellicom Data Security system > This uses the AMD DES chip to encrypt both comm (via rs232) and disks (both > hard and soft ) on a PC or look-alike. > I have been able to send 9600baud full duplex through this box w/o any > problems. ... > This unit does all 4 types of encyrption (block mode, stream mode..etc) > .No it has not been certified by the DOD CSC and they don't intend to be . I assume you mean the box has not been certified, as the AMD DES chip has been certified. (by the NBS, I think) By the way, Intel is second sourcing one version of our chip (the 8086 compatible version, of course) and Zilog another (the Z8000 compatible version). I've seen app notes to interface one or another version to almost all major microprocessors. -- This is my opinion, I guess. Phil Ngai (408) 749-5720 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil ARPA: amdcad!phil@decwrl.ARPA