Cache-based communication for trusted execution environments

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United States of America Patent

PATENT NO 11775360
APP PUB NO 20230168954A1
SERIAL NO

17671619

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Abstract

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A method executes inter-enclave communication via cache memory of a processor. The method includes: instantiating a first enclave such that it is configured to execute a first communication thread, which is configured to read/write data to the cache memory; instantiating a second enclave such that it is configured to execute a second communication thread, which is configured to read/write data to cache memory; executing, by the first enclave, the first communication thread to send message data to the second enclave, executing the first communication thread comprising writing the message data to the cache memory; and executing, by the second enclave, the second communication thread to receive the message data. Executing the second communication thread can include: monitoring the cache memory to determine whether the data message is being sent; and based upon determining the data message is being sent, reading from the cache memory to receive the data message.

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Patent Owner(s)

  • NEC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Briongos, Samira Heidelberg, DE 5 0
Soriente, Claudio Heidelberg, DE 28 99

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