https://scholars.lib.ntu.edu.tw/handle/123456789/634261
標題: | Grouping Sensors for the Key Distribution of Implicit Certificates in Wireless Sensor Networks | 作者: | RAY-I CHANG Chiang, Chien Wen Hung, Yu Hsin |
關鍵字: | aggregator-based grouping | encryption and decryption operations | wireless sensor networks | 公開日期: | 1-七月-2023 | 卷: | 12 | 期: | 13 | 來源出版物: | Electronics (Switzerland) | 摘要: | As sensor nodes communicate via wireless channels, information security is essential for wireless sensor networks. Efficient protection mechanisms to ensure data security among nodes are critical. This study developed the bi-directed grouping (top-down grouping (TDG) and bottom-up grouping (BUG)) methods. In this study, we propose a group-based key distribution method, “aggregator-based grouping” (ABG), which combines the advantages of TDG and BUG to address the security issues of nodes. It employs horizontal and vertical searches, which are based on breadth-first and aggregator searches, respectively. A node performs encryption and decryption only when it requires either data aggregation or inter-group communication. The secure aggregation method can be applied to key-grouping management. We compared the proposed method with TDG and BUG using the same number of groups and network structure. For a network with maximum group members of 50 (total sensor nodes = 1000), compared with TDG and BUG, ABG reduced the number of encryption and decryption operations by ~36%. ABG avoids unnecessary encryption and decryption in the network. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/634261 | ISSN: | 2079-9292 | DOI: | 10.3390/electronics12132815 |
顯示於: | 工程科學及海洋工程學系 |
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