METHOD AND APPARATUS FOR MONITORING PERFORMANCE FOR SECURE CHIP OPERATION
A method and apparatus is provided for monitoring performance of an processor to detect tampering and place the processor in a safe operating state that prevents unauthorized access to contents of the processor. In one example, the method and apparatus compares a measured value of an operating param...
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Main Authors | , , , , , |
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Format | Patent |
Language | English |
Published |
19.02.2015
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Subjects | |
Online Access | Get full text |
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Summary: | A method and apparatus is provided for monitoring performance of an processor to detect tampering and place the processor in a safe operating state that prevents unauthorized access to contents of the processor. In one example, the method and apparatus compares a measured value of an operating parameter (i.e., a temperature, supply voltage or clock signal) to predefined limits to identify an out of limits measured value. If an out of limits measured value is detected during a normal operating mode, the processor enters a reset mode, and if an out of limits measured value is detected during power up or reset, the processor in retained a reset mode. |
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Bibliography: | Application Number: US201414282451 |