CENTRAL PROCESSING UNIT AND METHOD TO VERIFY MAINBOARD DATA
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United States of America Patent
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Dec 1, 2016
app pub date -
Apr 14, 2016
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May 25, 2015
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Provided is a Central Processing Unit (CPU) and a method to verify mainboard data. The CPU comprises: an on-die Read-Only Memory (ROM) for storing trusted root digest information, wherein the trusted root digest information is not allowed to be modified; and a core for, during a power-up process, computing digest information of a trusted root data stored in a mainboard using a digest algorithm, comparing the digest information with the trusted root digest information, and performing a signature verification algorithm with the trusted root data to verify the integrity of mainboard data if the digest information coincides with the trusted root digest information.
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