General Instrument Corporation

Lawrence R Cook

Eric J Sprunk

Xin Qiu

Lawrence W Tang

Daniel A Simon

A cryptography circuit provides secure processing of data by utilizing countermeasures that combat timing and power attacks. Superfluous operations such as multiplication operations, modular reductions by an integer, storage of data to memory are available for use by a processor to disguise the amount of power usage and the amount of time required to perform a cryptographic operation. A cryptographic key is available for use in order to trigger when these emulated operations occur. The occurrences of the emulated operations is controlled by the user to provide the preferred tradeoff between security and use of resources.

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San Diego, CA, United States of America

Lawrence R Cook