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Securing data stored in a memory of an IoT device during a low power mode

A low-power mode, memory technology, applied in secure communication devices, computer security devices, electrical digital data processing, etc., can solve problems such as clock loss

Pending Publication Date: 2021-04-23
GACUTE RAVISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clocks are often lost when an IoT device enters a low-power mode, or, for potentially unsafe clocks, the IoT device relies on other building blocks outside the SoC

Method used

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  • Securing data stored in a memory of an IoT device during a low power mode
  • Securing data stored in a memory of an IoT device during a low power mode
  • Securing data stored in a memory of an IoT device during a low power mode

Examples

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Embodiment Construction

[0057] While reference is made to client devices in the following examples, it should be understood that the present disclosure is not limited to application in client devices.

[0058] figure 1 An exemplary embodiment of a device 1 such as an IoT device communicably connected to a server via a network is shown. The device may include a secure section, also known as a secure enclave 2, which is typically the most secure hardware block on a SoC. This secure enclave is typically more secure than, for example, a Trusted Execution Environment (TEE) on the SoC, and can be part of the TEE. Secure Enclave 2 can have its own independent secure boot process to ensure that it is completely secure and can perform specific security functions.

[0059] The secure enclave 2 may comprise memory blocks 7 , such as internal RAM, to store data and code of the secure enclave 2 . Preferably, this memory block 7 is only accessible by the secure enclave 2 . When the device enters a low power mo...

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PUM

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Abstract

The disclosure relates to a method for enabling the secure functions of a chipset (1) and especially the encryption of the content of the secure memory (7) when the device goes into low power mode. The content of the secure memory (7) may be encrypted and stored in an external memory (20) during low power mode of the chipset (1).

Description

technical field [0001] The present disclosure generally relates to protecting data stored in a memory of a device. More specifically, the present disclosure relates to an Internet of Things (IoT) device that can enter a low power mode, and protecting data stored in a memory of the IoT device before, during, and after the low power mode. Background technique [0002] IoT is a network of physical devices, objects or items embedded in electronics or software, enabling these objects to exchange data without human-machine interaction. Recommendation ITU-T Y.2060 defines IoT as the global infrastructure of the information society, enabling advanced services by interconnecting things (physical and virtual) based on existing and evolving interoperable information and communication technologies . A "thing" in the term "IoT" is considered as an object of the physical world (physical things) or the information world (virtual things), capable of being identified and integrated into a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/72G06F21/57G06F21/81
CPCG06F21/57G06F21/72G06F21/81G06F2221/2143G06F2221/2151G06F1/3275G06F21/602H04L9/0841
Inventor 迪迪埃·胡尼亚切克马尔科·马凯蒂杰尔姆·珀莱因
Owner GACUTE RAVISION