Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2007-05-29
2007-05-29
Zand, Kambiz (Department: 2132)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C713S185000, C713S183000
Reexamination Certificate
active
10276432
ABSTRACT:
To provide a memory access control system in which partitions, which are divided memory areas generated in a device, can be independently managed. In response to access to the divided memory areas, which are a plurality of partitions, various types of access control tickets are issued under the management of each device or partition manager, and processing based on rules indicated in each ticket is performed in a memory-loaded device. A memory has a partition, which serves as a memory area managed by the partition manager, and a device manager management area managed by the device manager. Accordingly, partition authentication and device authentication can be executed according to either a public-key designation method or a common-key designation method.
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Ishibashi Yoshihito
Shirai Taizo
Takada Masayuki
Yoshino Kenji
Lerner David Littenberg Krumholz & Mentlik LLP
Perungavoor Venkat
Sony Corporation
Zand Kambiz
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