Cryptography – Key management – Having particular key generator
Patent
1997-01-03
2000-02-22
Gregory, Bernarr E.
Cryptography
Key management
Having particular key generator
380 9, 380 28, 380 29, 380 37, 380 43, H04L 900, H04L 906
Patent
active
060289392
ABSTRACT:
A data security system and method for providing a cryptographic process such as the Data Encryption Standard comprises a microprocessor having a programmable hardware element such as a field programmable gate array interfaced to the processor bus. The predetermined ordered sequence of operations which form the cryptographic process are parsed into hardware-centric operations such as bit manipulations, table look-ups and logic operations which are efficiently performed in hardware, and into software-centric operations such as data processing and state machine control. Hardware-centric operations are performed in the programmable hardware device, and overall control of the system is performed under microprocessor control.
REFERENCES:
patent: 4157454 (1979-06-01), Becker
patent: 4543646 (1985-09-01), Ambrosius, III et al.
patent: 5533123 (1996-07-01), Force et al.
Gregory Bernarr E.
RedCreek Communications, Inc.
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