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:
Mar. 02, 2010
Filed:
Jan. 20, 2006
Kenji Shirakawa, Kanagawa, JP;
Mikio Hashimoto, Kanagawa, JP;
Keiichi Teramoto, Tokyo, JP;
Satoshi Ozaki, Kanagawa, JP;
Kensaku Fujimoto, Kanagawa, JP;
Kenji Shirakawa, Kanagawa, JP;
Mikio Hashimoto, Kanagawa, JP;
Keiichi Teramoto, Tokyo, JP;
Satoshi Ozaki, Kanagawa, JP;
Kensaku Fujimoto, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile