Broadcast authentication method for wireless network with limited node resource

Abstract

The invention provides a broadcast authentication method for a wireless network with a limited node resource. The method comprises the following steps that: 1), a protocol is initialized; 2), a broadcast node (BNode) requests a mu TESLA parameter chain to a back server (BServer); 3), a receiving node (RNode) authenticates the broadcast node (BNode); 4), the broadcast node (BNode) distributes mu TESLA parameters; and 5), the receiving node (RNode) authenticates the broadcast information of the broadcast node (BNode). On the basis of a one-way chain and a Merkle tree mechanism, and by constructing the mu TESLA parameter chain mu TPC and mu TPC tree mu TPCT, the broadcast authentication method realizes safe and highly efficient mu TESLA parameter distribution, improves the tree-based mu TESLA method, is more suitable for the broadcast authentication for the wireless network of which the node resource is limited, can resist DoS attacks in the mu TESLA parameter distribution process, has low calculation, communication and storage costs, can immediately eliminate authentication capacity of a captured node, and is applied to the large-scale wireless network with a plurality of broadcast nodes.

Description

technical field [0001] The invention relates to the application field of wireless network security in information security technology, in particular to a broadcast authentication method of a wireless network with limited node resources. Background technique [0002] With the development of technology, resource-constrained wireless networks such as sensor networks, Zigbee networks, RFID networks, and wireless personal area networks have expanded human remote monitoring and remote control capabilities. and other fields have broad application prospects. When this type of wireless network is deployed in a hostile environment, due to its wireless and broadcast characteristics, the broadcast information may be tampered or inserted malicious information by attackers, and an authentication mechanism needs to be introduced to ensure the legitimacy and integrity of the broadcast information. Broadcast authentication is one of the basic security services of wireless networks. [0003...

AI Technical Summary

Problems solved by technology

However, there are still two deficiencies in this protocol: 1. When there are a large number of broadcast nodes in the network, the overhead generated by the parameter distribution process increases rapidly, which limits the applicable network scale; 2. Among its revocation methods, the revocation tree method requires a large number of storage space, the a priori authentication key update method cannot revoke the authentication capability of the captured node in time, and the communication overhead is large, so it is difficult to fully meet the needs of wireless networks with limited node resources

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