Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1985-05-06
1988-03-15
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 28, 380 43, H04L 900
Patent
active
047318406
ABSTRACT:
A method for the encryption, transmission, and subsequent decryption of digital keying data. The method utilizes the Data Encryption Standard and is implemented by means of a pair of apparatus, each of which is selectable to operate as either a master unit or remote unit. Each unit contains a set of key encryption keys which are indexed by a common indexing system. The master unit operates upon command from the remote unit to generate a data encryption key and encrypt the data encryption key using a preselected key encryption key. The encrypted data encryption key and an index designator are then downloaded to the remote unit, where the data encryption key is decrypted for subsequent use in the encryption and transmission data. Downloading of the encrypted data encryption key enables frequent change of keys without requiring manual entry or storage of keys at the remote unit.
REFERENCES:
patent: 4193131 (1980-03-01), Lennon et al.
patent: 4238853 (1980-12-01), Ehrsam et al.
patent: 4315101 (1982-02-01), Atalla
patent: 4322576 (1982-03-01), Miller
patent: 4386233 (1983-05-01), Smid et al.
patent: 4408203 (1983-10-01), Campbell
patent: 4578531 (1986-03-01), Everhart et al.
patent: 4605820 (1986-08-01), Campbell, Jr.
"DES Modes of Operation", FIPS pub #81, 12/2/80.
Miles E. Smid, "A Key Notarization System for Computer Networks," NBS special publication 500-54, U.S. Department of Commerce, Bureau of Standards, dated Oct. 1979.
Brenner David P.
Mniszewski Susan M.
Springer Edward A.
Cangialosi Salvatore
Gaetjers Paul D.
Hightower Judson R.
Lewis Aaron J.
The United States of America as represented by the United States
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