Protection of a program waiting to be executed in a memory used by a microprocessor

A method for authorizing an access to a table of address correspondence between a multitask CPU and at least one memory containing several programs, consisting of calculating, on each task change of the CPU, a signature of at least part of the program instruction lines, and checking the conformity o...

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Bibliographic Details
Main Authors ANGUILLE CLAUDE, COURCAMBECK STEPHAN
Format Patent
LanguageEnglish
Published 16.12.2004
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A method for authorizing an access to a table of address correspondence between a multitask CPU and at least one memory containing several programs, consisting of calculating, on each task change of the CPU, a signature of at least part of the program instruction lines, and checking the conformity of this signature with a signature recorded upon previous execution of the involved program.
Bibliography:Application Number: US20040817325