Secured microprocessor comprising a system for allocating...

Details Secured microprocessor comprising a system for allocating... Secured microprocessor comprising a system for allocating...

2005-08-02

2005-08-02

Wright, Norman M. (Department: 2134)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S194000, C711S168000, C711S170000, C714S047300

Reexamination Certificate

active

06925569

ABSTRACT:
A secured microprocessor includes a rights allocation system for the allocation, to programs executable by the microprocessor, of permanent access rights to certain zones of the memory array of the microprocessor. The rights allocation system confers, on a sub-program shared by at least two programs, temporary rights of access to certain memory zones. The temporary rights are allocated when the sub-program is called by one of the programs as a function of the program calling the sub-program. The rights allocation system provides libraries in a secured microprocessor without harming the integrity of the rights conferred on programs using the libraries.

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