Module wireless firmware upgrade method, security chip and wireless firmware upgrade platform

Abstract

This application discloses a module wireless firmware upgrade method, a security chip and a wireless firmware upgrade platform, including: sending a feature authentication string to the security chip; the security chip uses the signature private key to sign the feature authentication string and returns the signature value; The signature value and feature authentication string are sent to the wireless firmware upgrade platform; the wireless firmware upgrade platform uses the signature public key to verify the signature value and feature authentication string; if the signature verification is successful, it proves that the identity of the module is legal, and then uses the encryption public key Encrypt the upgrade plaintext differential packet; receive the upgrade ciphertext differential packet uploaded by the wireless firmware upgrade platform and send it to the security chip; the security chip decrypts the upgrade ciphertext differential packet and returns the decrypted upgrade plaintext differential packet; The version number and HASH value of the upgraded plaintext differential package are used to judge the correctness. If the version number and HASH value are consistent with the upgraded version, the firmware upgrade is performed. This application guarantees data legitimacy and security during the firmware upgrade process.

Description

Technical field [0001] This application relates to the field of Internet of Things, in particular to module wireless firmware upgrade methods, safety chips and wireless firmware upgrade platforms. Background technique [0002] Traditional Internet development matures, there is a security vulnerability, and the Internet of Things is a new product, and the architecture is more complicated. There is no unified standard, and all aspects of security issues will also be more prominent. [0003] Among them, the Internet of Things module is located at the bottom of the entire Internet of Things system, which is an important part of the connectivity network cognitive layer and the network layer, is an indispensable hardware basis. All data information that requires acquisition is used through the Internet of Things module to make applications in computer network devices to achieve various needs of users. [0004] At present, most of the Internet of Things modules, in terms of low cost: us...

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Problems solved by technology

Most importantly, the credit chain system of the SSL certificate is not secure

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