PROCESSOR, MEMORY, COMPUTER SYSTEM AND AUTHENTICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a processor which prevents unauthorized actions such as unauthorized access to a computer at a low cost.

SOLUTION: The processor has: a holding means of information for memory authentication on the processor side which is integrally formed with an operation means and holds information for authenticating first memory and information for authenticating second memory; a memory authentication means for comparing the information for comparing the first memory acquired from the first memory with information for authenticating the first memory held by the holding means of information for memory authentication on the processor side to authenticate the first memory, further comparing the information for authenticating the second memory acquired from the second memory with information for authenticating the second memory held by the holding means of information for memory authentication held on the processor side to authenticate the second memory; and an access control means for controlling access to the first memory and the second memory, based on authentication results by the memory authentication means.

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