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Firmware upgrading method

A firmware upgrade and firmware technology, applied in the field of firmware, can solve problems such as security risks, firmware theft and damage, and achieve reliable operation and prevent malicious use.

Active Publication Date: 2019-12-03
HONEYWELL ENVIRONMENTAL & COMBUSTION CONTROLS (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, just because the device can be connected to the network to update the firmware, it brings many security risks, such as damage during the transfer and transmission of the firmware, malicious code implanted in the firmware or even tampered with, and the server for upgrading the firmware is illegally used. Untrustworthy, these situations may cause the firmware to be stolen, copied, or modified, which will cause the device to be used maliciously, and even endanger the rights and interests of users
[0004] At present, as R&D personnel and various companies are becoming more and more aware of security and property rights, many solutions have emerged, such as using hash algorithms to calculate the plaintext digest of the firmware to ensure the integrity of the firmware to ensure the legitimacy of the firmware Using signatures, etc., however, the existing technology has not reached a complete security solution for the upgrade of user equipment, and in the usage scenario of firmware with high security and stability requirements, there is a risk of poor consideration of any link. May introduce huge security risks

Method used

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Embodiment Construction

[0022] In the following description, specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details. In the present invention, specific numerical references such as "first element", "second means" and the like may be made. However, specific numerical references should not be construed as necessarily obeying their literal order, but rather that "first element" is different from "second element".

[0023] The specific details set forth herein are exemplary only, and the specific details may vary while remaining within the spirit and scope of the invention. The term "coupled" is defined to mean either directly connected to a component or indirectly connected to a component via another component.

[0024] Preferred embodiments of methods, systems and devices adapted to implement the present invention...

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Abstract

The invention relates to a firmware upgrading method, which comprises the following steps that: user equipment establishes secure connection with an upgrading server, and downloads a firmware upgrading packet through an encryption channel to obtain encrypted firmware and a second digital signature; the second digital signature is verified to verify the integrity and / or legality of the encrypted firmware; the encrypted firmware is decrypted by using a decryption algorithm to obtain to-be-upgraded firmware and a first digital signature; the user equipment writes the firmware to be upgraded intothe application logic program unit; and the user equipment verifies the first digital signature to verify the integrity and legality of the firmware to be upgraded. According to the method, integral security design is carried out on all process links of firmware upgrading, and security risks existing in each link can be effectively prevented.

Description

technical field [0001] The present invention relates to the technical field of firmware, and more specifically, to a method for upgrading firmware. Background technique [0002] At this stage, user needs are increasing, and user equipment functions are becoming more and more abundant. In order to enhance user experience and equipment reliability, various networked equipment have added firmware upgrade functions, so that manufacturers can update at the right time. Add new functions to the equipment, or modify technical problems found. [0003] However, just because the device can be connected to the network to update the firmware, it brings many security risks, such as damage during the transfer and transmission of the firmware, malicious code implanted in the firmware or even tampered with, and the server for upgrading the firmware is illegally used. Untrustworthy, these situations may cause the firmware to be stolen, copied, or modified, which in turn may cause the device ...

Claims

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Application Information

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IPC IPC(8): G06F21/12G06F21/44G06F21/57
CPCG06F21/121G06F21/575G06F21/445
Inventor 薛永浩张英舟高欣林迪张占鹏吕超
Owner HONEYWELL ENVIRONMENTAL & COMBUSTION CONTROLS (TIANJIN) CO LTD
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