Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-04-23
1994-08-23
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 46, 380 49, H04L 908
Patent
active
053414276
ABSTRACT:
An apparatus for secure communications contains a controller for automatically selecting one of several data ciphering devices utilizing one of a plurality of ciphering algorithms common to transmitting and receiving terminals. A transmitter for transmitting encrypted data, and a receiver for receiving encrypted data are coupled to the plurality of ciphering devices. The controller automatically determines which of the ciphering devices to employ for any given secure communication. The method for establishing a secure communications link includes the steps of exchanging a first message for determining a common key generation and ciphering method and comparing a further shared message for validation of communications terminal security. Additionally, the steps of trading a still further message for providing data to form traffic keys to initialize key generators, interchanging an additional message for synchronizing and verifying synchronization of secure communications between secure communications terminals, and initiating secure communication are used.
REFERENCES:
patent: 4193131 (1980-03-01), Lennon
patent: 4274085 (1981-06-01), Marino, Jr.
patent: 4365110 (1982-12-01), Lee et al.
patent: 4399323 (1983-08-01), Henry
patent: 4484025 (1984-11-01), Ostermann et al.
patent: 4484027 (1984-11-01), Lee et al.
patent: 4888801 (1989-12-01), Foster et al.
patent: 4941176 (1991-07-01), Matyas et al.
patent: 5073934 (1991-12-01), Matyas et al.
patent: 5086467 (1992-02-01), Malek
patent: 5142578 (1992-08-01), Matyas et al.
patent: 5144667 (1992-09-01), Pogue, Jr. et al.
patent: 5179591 (1993-01-01), Hardy et al.
patent: 5199069 (1993-03-01), Barrett et al.
patent: 5230020 (1993-07-01), Hardy et al.
An Article entitled "Data Encryption Standard", U.S. Department of Commerce, National Bureau of Standards Publication, Jan. 15, 1977, Reaffirmed Jan. 22, 1988.
An Article entitled "Des Modes of Operation", U.S. Department of Commerce, National Bureau of Standards Publication, Dec. 2, 1980.
Altschuler Barry N.
Hardy Douglas A.
Lewis Leslie K.
Cangialosi Salvatore
Fliegel Frederick M.
Motorola Inc.
LandOfFree
Algorithm independent cryptographic key management apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Algorithm independent cryptographic key management apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Algorithm independent cryptographic key management apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-508537