The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2019
Filed:
Dec. 23, 2014
Morpho, Issy-les-Moulineaux, FR;
Mael Berthier, Issy-les-Moulineaux, FR;
Victor Servant, Issy-les-Moulineaux, FR;
IDEMIA IDENTITY & SECURITY, Issy les Moulineaux, FR;
Abstract
The invention relates to a secured comparative processing method of the type in which a processor of an electronic component compares a set of proof data received by the processor as an input with main secret data stored in said electronic component, characterised in that the processor executes, in parallel with the comparison with the secret data, a series of complementary operations on the set of proof data which generate on the electronic component a variation in behaviour which is a function of the proof data which the component receives as an input and which is added to the variation in behaviour linked to the comparison with the main secret data, the series of complementary operations including a series of base operations repeated K times, and the execution of said series being preceded by an adjustment of execution parameters of said series, the parameters including: the identifier of the series of base operations to be executed, the series of base operations being comprised within a set of predefined base operations, and the number K of executions of the set of base operations, the set of adjusted execution parameters being specific to the set of proof data received by the electronic component.