Abstract
This paper puts forward an approach of access control based on unidirectional chain. For the purpose of increasing the number of users, improving the expandability of access ability, and resisting the attacks aiming at capturing users, the author proposes new methods of access control and a user access ability revocation based on the hash tree. Through analysis, evaluation and comparison, the author concludes that these approaches and methods require smaller computation, storage and communication overheads than the existing sensor network access control methods. Moreover, the proposed approaches and methods are able to resist node capture, as well as information replay requests and attacks.
Highlights
As an important tool in the field of environmental testing, the sensor network can be used to monitor the environment, store the acquired data and offer environmental monitoring data to users [1]
To safeguard the access security of the network, it is of great necessity to set up proper access control mechanism [2]
Vulnerable to illegal attacks, the network access control mechanism is in urgent need of improvement
Summary
As an important tool in the field of environmental testing, the sensor network can be used to monitor the environment, store the acquired data and offer environmental monitoring data to users [1]. To safeguard the access security of the network, it is of great necessity to set up proper access control mechanism [2]. Such a mechanism can prevent illegal access, which is an existential threat to the very safety of the sensor. In the absence of a proper access control mechanism, illegal intruders may use the sensor node to destroy network services [3]. The sensor network access control operates under the principle of pre-allocating the authentication information for each node Based on such information, the sensor network can verify the users’ identities when providing the access service. If the users pass the authentication, the network would accept the access request and provide corresponding services
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