公开(公告)号：US10984845B2

公开(公告)日：2021-04-20

申请号：US16729056

申请日：2019-12-27

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (Alps) SAS

Inventor： Diana Moisuc ,  Christophe Laurencin

IPC: G11C8/20 ,  G11C16/22 ,  H04B3/52

Abstract: In an embodiment, a method for protecting an electronic circuit includes: detecting a malfunction of the electronic circuit; executing a plurality of waves of countermeasures without interrupting an operation of the electronic circuit; and triggering a reset of the electronic circuit after executing the plurality of waves of countermeasures. An interval between two waves of countermeasures of the plurality of waves of countermeasures is variable.

公开(公告)号：US20200211607A1

公开(公告)日：2020-07-02

申请号：US16729056

申请日：2019-12-27

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (Alps) SAS

Inventor： Diana Moisuc ,  Christophe Laurencin

IPC: G11C8/20 ,  G11C16/22 ,  H04B3/52

Abstract: In an embodiment, a method for protecting an electronic circuit includes: detecting a malfunction of the electronic circuit; executing a plurality of waves of countermeasures without interrupting an operation of the electronic circuit; and triggering a reset of the electronic circuit after executing the plurality of waves of countermeasures. An interval between two waves of countermeasures of the plurality of waves of countermeasures is variable.

公开(公告)号：US10540663B2

公开(公告)日：2020-01-21

申请号：US15900362

申请日：2018-02-20

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Denis Farison ,  Fabrice Romain ,  Christophe Laurencin

IPC: G06F21/00 ,  G06Q30/00 ,  G06F21/44

Abstract: The authenticity of a product associated with a host device is verified through a process. The product contains, in segments of a non-volatile memory, several different functions stored in ciphered fashion. The process involves, in a first phase, the sending by the host device of a control signal for executing a function, with the product functioning to decipher the function and store the unciphered function in the non-volatile memory. The process further involves, in a second phase, the sending by the host device of a control signal for causing execution of the deciphered function, with the product functioning to execute the function and send a result of this execution back to the host device. The host device evaluates the received result to verify product authenticity.

公开(公告)号：US10389521B2

公开(公告)日：2019-08-20

申请号：US15138573

申请日：2016-04-26

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Mathieu Lisart ,  Benoit Durand ,  Massimo Cervetto ,  Christophe Laurencin

IPC: H04L9/00 ,  G06F21/55 ,  G06F21/75 ,  G06F21/74 ,  G06F21/85

Abstract: A circuit includes a first processing unit and a second identical processing unit. A first communication bus passes encrypted data between one of a plurality of functions and one or both of the first and second processing units. A selection circuit determines whether the encrypted bus is coupled to the first processing unit, the second processing unit, or both of the first and second processing units.

公开(公告)号：US20140367465A1

公开(公告)日：2014-12-18

申请号：US14305129

申请日：2014-06-16

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Denis Farison ,  Fabrice Romain ,  Christophe Laurencin

IPC: G06Q30/00

CPC classification number: G06Q30/018 ,  G06F21/44 ,  G06F21/73

Abstract: In order to verify the authenticity of a product associated with a host device, the product contains, in segments of a non-volatile memory, several different functions stored in ciphered fashion. The host device sends a control signal for selecting and activating one of those ciphered functions. The product then deciphers and executes the function. The result of the function execution is then communicated back to host device when a decision on product authenticity is made.

Abstract translation: 为了验证与主机设备相关联的产品的真实性，产品在非易失性存储器的段中包含以加密方式存储的若干不同功能。 主机设备发送用于选择和激活这些加密功能之一的控制信号。 然后产品解密并执行该功能。 当做出关于产品真实性的决定时，功能执行的结果然后被传送回主机设备。