Security chip firmware updating method and device

A firmware update, security chip technology, applied in computer security devices, software deployment, instruments, etc., can solve problems such as increasing the work pressure of the TSM platform, reducing user experience, and extending the time of security chip firmware update.

Active Publication Date: 2020-01-14
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] IoT devices and local network devices are usually connected using wireless networks. It is difficult to establish stable and fast data transmission based on wireless networks, resulting in network interruption between the security chip and the TSM platform. The TSM platform needs to re-establish a network connection wi...

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  • Security chip firmware updating method and device
  • Security chip firmware updating method and device
  • Security chip firmware updating method and device

Examples

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Embodiment Construction

[0086] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. Rather, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0087] The terms used in the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the present disclosure and appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood th...

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Abstract

The invention provides a security chip firmware updating method and device. The method is applied to a security chip in a local device, and comprises the following steps: obtaining firmware update data of the security chip sent by the local network device, the firmware update data being data downloaded by the local network device from a certificate authority CA, and the firmware update data comprising a signed firmware update packet; performing security verification on the firmware update package by using a public key infrastructure (PKI) security mechanism; and under the condition that the firmware update package passes the security verification, performing firmware update by using the firmware update package. Based on setting of a PKI architecture, the security chip does not need to establish real-time network connection with the CA, namely the cloud, in the firmware updating process, the problem that in the background art, the working pressure of the cloud is increased based on multiple times of network connection and multiple times of password establishment is avoided, the stability of upgrading transmission is improved, and the firmware updating time of the security chip is shortened.

Description

Technical field [0001] The present disclosure relates to the field of software technology, and in particular to a method and device for updating security chip firmware. Background technique [0002] With the continuous development of science and technology, a variety of security chips have been applied to IoT (The Intern et of Things, Internet of Things) devices for security verification of network data received by IoT devices. At present, the remote update of the firmware of the security chip is mainly implemented using standard processes defined in TSM (Trusted Service Manager) and GP (Global Platform, Global Platform Organization) specification 1. [0003] Specifically, after the developer updates the firmware of the security chip, the firmware update package of the security chip is published on the TSM platform. The TSM platform establishes a real-time connection with the security chip in the IoT device, and uses the newly created key to encrypt the firmware update package. Th...

Claims

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Application Information

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IPC IPC(8): G06F21/51G06F8/65
CPCG06F8/65G06F21/51
Inventor 解荣康
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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