公开(公告)号：US20220318434A1

公开(公告)日：2022-10-06

申请号：US17657020

申请日：2022-03-29

Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics (Grand Ouest) SAS

Inventor： Franck Albesa ,  Nicolas Anquet

IPC: G06F21/72 ,  H04L9/08 ,  G06F9/4401

Abstract: The present disclosure relates to a method for decrypting encrypted data. The method includes generating a first count value by a monotonic counter of a processing device, deriving, using a key derivation circuit, a first encryption key based on the first count value, transmitting the first encryption key to a cryptographic processor; and decrypting, based on the first encryption key, first encrypted data.

公开(公告)号：US20220317184A1

公开(公告)日：2022-10-06

申请号：US17709053

申请日：2022-03-30

Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics (Grand Ouest) SAS

Inventor： Franck Albesa ,  Nicolas Anquet

IPC: G01R31/317 ,  G06F21/60 ,  G06F21/75

Abstract: In an embodiment a method for debugging a processing device includes generating, by a monotonic counter of the processing device, a first count value, transmitting, by the monotonic counter, the first count value to a debug access control circuit, comparing, by the debug access control circuit of the processing device, the first count value with one or more reference values and authorizing or preventing debug access, by the debug access control circuit, based on the comparison.

公开(公告)号：US20220164172A1

公开(公告)日：2022-05-26

申请号：US17451394

申请日：2021-10-19

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Michel Jaouen ,  Stephane Le Roy ,  Moise Gergaud

IPC: G06F8/41 ,  G06F21/54

Abstract: According to one aspect, a method for compiling by a compilation tool a source code into a computer-executable code comprises receiving the source code as input of the compilation tool, translating the source code into an object code comprising machine instructions executable by a processor, then introducing, between machine instructions of the object code, additional instructions selected from illegal instructions and no-operation instructions so as to obtain the executable code, then delivering the executable code as output of the compilation tool.

公开(公告)号：US20220164016A1

公开(公告)日：2022-05-26

申请号：US17517382

申请日：2021-11-02

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Gerald Baeza ,  Pascal Paillet ,  Loic Pallardy

IPC: G06F1/324 ,  G06F1/3206

Abstract: In an embodiment a method for managing a low-power mode of an electronic device includes at a first request for transitioning an electronic device to a low-power mode, storing values of a first counter and a second counter of the electronic device on a first edge of a first clock and at a second request for transitioning the electronic device out of the low-power mode calculating a number of periods of a second clock between a second edge of the first clock and the first edge, the second edge being later than the first edge and updating the value of the second counter with a calculated value, wherein the first clock drives the first counter and the second clock drives the second counter, the second clock being faster than the first clock.

公开(公告)号：US11303677B2

公开(公告)日：2022-04-12

申请号：US16503911

申请日：2019-07-05

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Frederic Ruelle

IPC: H04L29/12 ,  G06F21/35 ,  H04L29/06 ,  G06F8/65 ,  G06F21/44

Abstract: A method for managing the operation of a group of a plurality of connected objects includes exchanging information between two of the connected objects of the group. The information relates to a state of each connected object participating in the exchanging of information. The method also includes triggering an action on a connected object participating in the exchanging of information. The triggering is based on the information received by this object.

公开(公告)号：US11277325B2

公开(公告)日：2022-03-15

申请号：US17209539

申请日：2021-03-23

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Frederic Ruelle

IPC: G06F15/173 ,  H04L43/0817 ,  G06F1/3209 ,  G08B21/02 ,  G06N20/00 ,  G08B1/08 ,  G06F1/3234 ,  G06F21/55 ,  H04L29/06

Abstract: A method for monitoring an activity of a connected object including a monitoring device, includes: performing, by a measurement stage of the monitoring device, a first periodic measurement of an internal signal representative of an activity of the connected object; performing, by a computation stage of the monitoring device, a first non-cryptographic computation of an activity parameter representative of the activity from the internal signal measured during the first periodic measurement; comparing, by a comparison stage of the monitoring device, between the activity parameter on completion of the first non-cryptographic computation and a range of settings of corresponding to the activity parameter; and triggering, by a control stage of the monitoring device, a safety action in response to a determination that the activity parameter is outside of the range of settings.

公开(公告)号：US10985616B2

公开(公告)日：2021-04-20

申请号：US16352248

申请日：2019-03-13

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Lionel Cimaz

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/12 ,  H04B5/00 ,  H02J7/02 ,  H01F38/14

Abstract: A method for transmitting power includes providing power using a contactless power transfer from a transmitter to a receiver that is mutually coupled with the transmitter. The method also includes managing and regulating the contactless power transfer being provided, where the managing and regulating are integrally and autonomously performed by the transmitter.

公开(公告)号：US10979329B2

公开(公告)日：2021-04-13

申请号：US16183091

申请日：2018-11-07

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Frederic Ruelle

IPC: G06F15/173 ,  H04L12/26 ,  G06F1/3209 ,  G08B21/02 ,  G06N20/00 ,  G08B1/08 ,  G06F1/3234 ,  G06F21/55 ,  H04L29/06

Abstract: A method for monitoring an activity of a connected object including a monitoring device, includes: performing, by a measurement stage of the monitoring device, a first periodic measurement of an internal signal representative of an activity of the connected object; performing, by a computation stage of the monitoring device, a first non-cryptographic computation of an activity parameter representative of the activity from the internal signal measured during the first periodic measurement; comparing, by a comparison stage of the monitoring device, between the activity parameter on completion of the first non-cryptographic computation and a range of settings of corresponding to the activity parameter; and triggering, by a control stage of the monitoring device, a safety action in response to a determination that the activity parameter is outside of the range of settings.

公开(公告)号：US20210081333A1

公开(公告)日：2021-03-18

申请号：US17010072

申请日：2020-09-02

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Michel Jaouen

IPC: G06F12/14 ,  G06F21/62 ,  G06F21/78

Abstract: An embodiment system for protecting a memory comprises security software configured to determine, from an exception generated during an unauthorized action attempt in the memory, whether the security software can perform the action.

公开(公告)号：US20210075604A1

公开(公告)日：2021-03-11

申请号：US17007599

申请日：2020-08-31

Applicant: STMicroelectronics (Grand Ouest) SAS

Inventor： Frédéric Ruellé

IPC: H04L9/08 ,  G06F8/65 ,  G06F21/57

Abstract: A key generation method, device and system are disclosed. In an embodiment a method for generating a symmetrical key includes generating, by an electronic device, the symmetrical key as a function of an update program for updating software and a secret value held by the electronic device.