公开(公告)号：US20190020469A1

公开(公告)日：2019-01-17

申请号：US15316374

申请日：2015-05-29

Applicant: OBERTHUR TECHNOLOGIES

Inventor： Emmanuelle DOTTAX ,  Florian GALDO ,  Jean-Philippe VALLIERES

IPC: H04L9/06 ,  G06F7/58 ,  H04L9/08 ,  H04L9/32

Abstract: A method for the authentication of a first electronic entity (C) by a second electronic entity (H), wherein the first electronic entity (C) implements the following steps: reception of a challenge (HCH) from the second electronic entity (H); generation of a number (CCH) according to a current value of a counter (SQC) and a first secret key (K-ENC); generation of a cryptogram (CAC) according to the challenge (HCH) and a second secret key (S-MAC); and transmission of a response including the cryptogram (CAC) to the second electronic entity (H), without transmission of the number (CCH).

公开(公告)号：US20170353315A1

公开(公告)日：2017-12-07

申请号：US15538709

申请日：2015-12-17

Applicant: OBERTHUR TECHNOLOGIES

Inventor： Emmanuelle DOTTAX ,  Florian GALDO ,  Christophe GIRAUD ,  Jean-Philippe VALLIERES

IPC: H04L9/32 ,  H04L9/14 ,  H04L9/06 ,  H04L9/30 ,  H04L9/00

CPC classification number: H04L9/3247 ,  G06F21/44 ,  G06F21/602 ,  G09C1/00 ,  H04L9/006 ,  H04L9/0631 ,  H04L9/0637 ,  H04L9/14 ,  H04L9/30 ,  H04L9/3242 ,  H04W12/10

Abstract: Disclosed is a secure electronic entity including a memory unit storing data in the form of multiplets and a processing module designed to receive data from an electronic device. The processing module is designed to determine a proof-of-integrity element in accordance with the data received and at least one portion of the stored multiplets, and to transmit the proof-of-integrity element to the electronic device. Also disclosed is a method for verifying the integrity of data stored in such a secure electronic entity.