Method for introducing dependence of white-box implementation on a set of strings

The invention provides a method for introducing the dependence of white-box implementation on a set of strings. A method of performing a cryptographic operation using a cryptographic implementation in a cryptographic system, including: receiving, by the cryptographic system, an identifying string va...

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Bibliographic Details
Main Authors JAN HOOGERBRUGGE, WILHELMUS PETRUS ADRIANUS JOHANNUS MICHIELS
Format Patent
LanguageEnglish
Published 27.01.2016
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The invention provides a method for introducing the dependence of white-box implementation on a set of strings. A method of performing a cryptographic operation using a cryptographic implementation in a cryptographic system, including: receiving, by the cryptographic system, an identifying string value; receiving, by the cryptographic system, an input message; performing, by the cryptographic system, a keyed cryptographic operation mapping the input message into an output message wherein the output message is the correct result when the indentifying string value is one of a set of binding string values, wherein the set includes a plurality of binding string values.
Bibliography:Application Number: CN201510349391