Obfuscated performance of a predetermined function

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United States of America Patent

PATENT NO 10944545
APP PUB NO 20170126398A1
SERIAL NO

15300525

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Abstract

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A method of obfuscated performance of a predetermined function, wherein for the predetermined function there is a corresponding plurality of first functions so that, for a set of inputs for the function, a corresponding set of outputs may be generated by (a) representing the set of inputs as a corresponding set of values, wherein each value comprises at least part of each input of a corresponding plurality of the inputs, (b) generating a set of one or more results from the set of values, where each result is generated by applying a corresponding first function to a corresponding set of one or more values in the set of values, and (c) forming each output as either a part of a corresponding one of the results or as a combination of at least part of each result of a corresponding plurality of the results; wherein the method comprises: obtaining, for each value in the set of values, one or more corresponding transformed versions of said value, wherein a transformed version of said value is the result of applying a bijection, that corresponds to said transformed version, to said value; and generating a set of transformed results corresponding to the set of results, wherein each transformed result corresponds to a respective result and is generated by applying a second function, that corresponds to the first function that corresponds to the respective result, to a transformed version of the one or more values of the respective set of one or more values for the corresponding first function.

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Patent Owner(s)

Patent OwnerAddress
IRDETO B V105 TAURUS AVENUE HOOFDDORP 2132 LS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wiener, Michael Hoofddorp, NL 18 134

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