SYSTEM AND METHOD FOR GENERATING CONSTELLATION-BASED INFORMATION CODING USING PHYSICAL NOISY PSEUDO-RANDOM SOURCES
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United States of America Patent
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Issued Date -
Jan 22, 2015
app pub date -
Jul 18, 2014
filing date -
Jul 18, 2013
priority date (Note) -
Abandoned
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Abstract
A method and system are provided for a symbol-oriented approach that addresses information recovery from manufacturing variations (MVs) readings in a high noise environment. The multi-bits-per-symbol approach, which is in accordance with the various aspects of the present invention, is in contrast with how manufacturing-variation-derived bits are normally treated in the context of PUF Key Generation's error correction process. The multi-bit-per-symbol approach also offers a natural distance metric (distance to the most-likely symbol, distance to the next-most-likely symbol, etc.) which can aid soft-decision decoding or list-decoding, and can be used to improve the provisioning of a more reliably encoded secret and its associated helper data value.
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