Hardened Encoded Message Check for RSA Signature Verification
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United States of America Patent
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Issued Date -
Jun 13, 2024
app pub date -
Jan 5, 2023
filing date -
Jan 6, 2022
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Abstract
Aspects of hardened encoded message check systems and methods for RSA signature verification are described. In one implementation, an encoded message is received that includes an array of words. Each of the words in the encoded message are processed using an expected value and a share associated with each word. A verification value is calculated based on the array of words in the encoded message, the expected value, and the share associated with each word. A determination is performed regarding whether the verification value is correct and, if the verification value is correct, a hardware device is unlocked.
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