Programmable cryptographic processing system and method

Details Programmable cryptographic processing system and method Programmable cryptographic processing system and method

1997-04-30

2000-08-08

Gregory, Bernarr E.

Cryptography

Electric signal modification

Including particular structure or housing

380277, 380278, 380287, 713150, 713153, 713189, 713193, 713200, 713201, H04L 900

Patent

active

061012556

ABSTRACT:
A programmable crypto processing system (10) includes several processing resources (14, 16, 26) implemented on a single ULSI die. The processing system is both key and algorithm agile allowing for simultaneous execution of a variety of cryptographic programs through the use of background staging of the next program and context (key and state) during execution of a current program. The programmable crypto processing system includes a programmable crypto processor (17) for processing data units in accordance with a channel program, a crypto controller (11) for identifying a channel program, two interface processors (13, 15) for asynchronously receiving and transferring data units from and from an external host. Data units identify a particular channel program, and are processed in a selected processing engine in accordance the identified channel program. The interface processors are capable of full duplex operation and provide full physical data interface isolation for processing plain-text and cipher-text data.

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"Cypris* CrYPtographic Reduced Instruction Set Microprocessor", Lockheed Martin, pp. 1-4.
"Applied Cryptography Second Edition", Bruce Schneier, John Wiley & Sons, Inc., pp. 216-225.

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