Method suitable for broadcast authentication of wireless sensor network

Abstract

The invention provides a wireless sensor network broadcast authentication method based on a Chinese remainder theorem, and aims to solve the problems of origin authentication and message integrity of a broadcast data package in a wireless sensor network. The wireless sensor network broadcast authentication method comprises the following steps that: a base station takes a unique solution of a congruence equation set of the Chinese remainder theorem as a 'signature' of a message to construct the broadcast data package and sends the broadcast data package; and a receiving party recovers a message authentication code (MAC) according to the 'signature' of in the broadcast data package, generates the message authentication code through the message and pair secret keys in the broadcast data package, and finishes the authentication operation on the broadcast data package by comparing whether the MACs are equal. According to the method suitable for the broadcast authentication of the wireless sensor network, a complex secret key management mechanism is unnecessary in the whole wireless sensor network, the instant authentication, the tolerance package losing and the like on an optional broadcast message can be realized, and according to the method, the capabilities of replay attack resistance, DOC (Disk Operating System) attack resistance, and node trapping resistance also can be realized.

Description

technical field [0001] The invention relates to a wireless sensor network, in particular to a broadcast authentication method of the wireless sensor network. Background technique [0002] With the rapid development of sensor technology and wireless network technology, wireless sensor network, as an emerging next-generation sensor network, has broad application prospects and is currently a very active field. Wireless sensor networks are obviously different from traditional network forms such as the Internet and mobile ad hoc networks in terms of the number of nodes, node composition, networking methods, and application fields. These characteristics mean that wireless sensor networks are widely used in military and civilian applications. [0003] Wireless sensor network is a data-centric network and a new information acquisition platform. Wireless sensor network managers usually need to send commands such as control information, management information, and query information....

AI Technical Summary

Problems solved by technology

[0005] In summary, although some existing methods have achieved some results in the realization of wireless sensor network broadcast authentication, they cannot fully meet their basic performance requirements, and there are too many calculation, communication and storage overheads, which easily lead to DOS attacks. Introducing delayed authentication and the need for time synchronization of all nodes in the network in advance

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