The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2000
Filed:
Apr. 30, 1997
David Michael Harrison, Mesa, AZ (US);
James Edward Greenwood, Jr, Scottsdale, AZ (US);
Kerry Lucille Johns-Vano, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
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.