PROTECTING A WHITE-BOX IMPLEMENTATION AGAINST ATTACKS

A method of performing a keyed cryptographic operation mapping an input message to an output message, wherein the cryptographic operation includes at least one round including a non-linear mapping function configured to map input data to output data, including: splitting the input data into n split...

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Bibliographic Details
Main Author MICHIELS WIL
Format Patent
LanguageEnglish
Published 04.05.2017
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A method of performing a keyed cryptographic operation mapping an input message to an output message, wherein the cryptographic operation includes at least one round including a non-linear mapping function configured to map input data to output data, including: splitting the input data into n split input data, wherein the splitting of the input data varies based upon the value of the input message; inputting each split input data into the non-linear mapping function to obtain n split output data, wherein a combination the n split output data indicates an output data, wherein the output data results when the input data is input to the non-linear mapping function.
Bibliography:Application Number: US201715407661