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:
Jul. 02, 1991
Filed:
Dec. 27, 1989
Joseph T Marino, Jr, Fountain Hill, AZ (US);
Paul A Lambert, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A security kernel of a secure processing system for providing security management, key management and kernel security functions. The secure processing system includes two parallel subsystems, a red subsystem and a black subsystem. The red subsystem may communicate only with the kernel since this system transfers plain text data. The black subsystem may communicate with the red subsystem and also other processing systems for the transmission of cypher text data. The security kernel is a single standard interface for tasks associated with the red and black subsystems for communicating in a secure manner with one another and with other processing systems. Various security services are provided to red and black subsystem applications by a single security kernel.