Firmware data verification device and method and firmware updating device, method and system

A technology for device verification and firmware update, applied in digital data protection, electrical digital data processing, software deployment, etc., to reduce complexity, reduce memory space, and improve flexibility

Pending Publication Date: 2020-11-03
OMRON SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, firmware data from illegal sources may cause some malicious actions, so source reliability must be ensured

Method used

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  • Firmware data verification device and method and firmware updating device, method and system
  • Firmware data verification device and method and firmware updating device, method and system
  • Firmware data verification device and method and firmware updating device, method and system

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Embodiment Construction

[0055] The foregoing and other features of the present application will become apparent from the following description, with reference to the accompanying drawings. In the specification and drawings, specific embodiments of the present application are specifically disclosed, which indicate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments, on the contrary, the present application The application includes all amendments, variations and equivalents that come within the scope of the appended claims.

[0056] In this embodiment of the application, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted. The term "and / or" includes any and all combinations of one or more ...

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Abstract

The embodiment of the invention provides firmware data verification equipment and method and firmware updating equipment and method and system. The verification method comprises the following steps: receiving first firmware data sent by data generation equipment, wherein the first firmware data comprises second firmware data encrypted by the data generation device and a digital signature; verifying the digital signature of the first firmware data; under the condition that the digital signature is verified successfully, removing the digital signature from the first firmware data to obtain the second firmware data; splitting the second firmware data to generate a plurality of encrypted data packets; and sending the plurality of encrypted data packets to firmware updating equipment, so that the firmware updating equipment decrypts the plurality of data packets and performs firmware updating. Therefore, the hardware cost of the firmware updating equipment can be reduced, and the updating efficiency is improved; and the flexibility of a firmware updating mode can be improved.

Description

technical field [0001] The present application relates to the technical field of device security, and in particular to a device and method for verifying firmware data, a device and method for updating firmware, and a system. Background technique [0002] Firmware is a program stored in a device or chip that undertakes the lowest-level work, and can be upgraded or updated by a specific refresh program. In a normal firmware upgrade or update process, the data generator sends the firmware data to the firmware updater (ie, the device to be upgraded). Firmware updaters usually have a system update program, and the system update program performs firmware update actions. [0003] For security reasons, the firmware data itself has confidentiality requirements, so the firmware data itself usually uses encryption and decryption technology to ensure data confidentiality. On the other hand, firmware data from illegal sources may cause some malicious actions, so source reliability must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65G06F21/51G06F21/60G06F21/64
CPCG06F8/65G06F21/51G06F21/602G06F21/64G06F21/57G06F8/654G06F21/572G06F2221/033H04L9/3247
Inventor 汪宇涛
Owner OMRON SHANGHAI
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