Network key updating system, method and apparatus

Abstract

The invention provides a network key updating system, method and apparatus. The system comprises a first device and a second device. The method comprises the following steps: sending, by the first device, generated key update request information to the second device; receiving, by the second device, key update response message sent after the key request information is received; generating a firstnetwork key based on a response identifier carried in an object identifier and the key update response information; after the first key verification information is encrypted by using the first networkkey, carrying the first key verification information in key update success information, and sending the key update success information to the second device; and after the second device receives the key update success information, generating a second network key according to the object identifier and the response identifier carried in the key update request information, and decrypting the encrypted first key verification information by using the second network key. The system updates the network key by means of multiple handshakes, avoids the information leakage caused by using the preset keyfor a long time, and improves the security of the wireless network communication in the Internet of Things device.

Description

technical field [0001] The present application relates to the field of data security, in particular, to a system, method and device for updating a network key. Background technique [0002] With the continuous development of the Internet of Things technology, the application of the Internet of Things is becoming more and more extensive, and the scale is becoming larger and larger. IoT devices generally use wireless network communication protocols such as ZigBee to communicate. [0003] In the Internet of Things, in order to improve the security and efficiency of communication, the existing wireless network communication protocol mainly uses a predefined key to encrypt the transmitted data, although the security of the data during the interaction process is guaranteed to a certain extent. However, the predefined key is used for too long and has a high probability of being stolen. Once the predefined key is stolen, the information will be leaked, causing damage to the interes...

AI Technical Summary

Problems solved by technology

[0003] In the Internet of Things, in order to improve the security and efficiency of communication, the existing wireless network communication protocol mainly uses a predefined key to encrypt the transmitted data, although the security of the data during the interaction process is guaranteed to a certain extent. However, the pre-defined key is used for too long, and the probability of being stolen is high. Once the pre-defined key is stolen, the information will be leaked, causing damage to the interests of multiple parties

[0004] Therefore, the poor security of IoT wireless network communication has become an urgent problem to be solved.

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