Method and apparatus for performing efficient side-channel attack resistant reduction using montgomery or barrett reduction

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United States of America Patent

PATENT NO 8392494
APP PUB NO 20100332578A1
SERIAL NO

12459152

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Abstract

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A time-invariant method and apparatus for performing modular reduction that is protected against cache-based and branch-based attacks is provided. The modular reduction technique adds no performance penalty and is side-channel resistant. The side-channel resistance is provided through the use of lazy evaluation of carry bits, elimination of data-dependent branches and use of even cache accesses for all memory references.

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  • INTEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dixon, Martin G Portland, US 135 1467
Feghali, Wajdi K Boston, US 157 1450
Gopal, Vinodh Westborough, US 366 2582
Guilford, James D Northborough, US 152 1286
Ozturk, Erdinc Marlborough, US 77 661
Wolrich, Gilbert M Framingham, US 178 1941

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