Open AccessResearch on Block Chain Service Composition Strategy Based on Big Data
Author(s) -
Wei Yang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1992/2/022186
Subject(s) - computer science , computer network , wireless sensor network , authentication (law) , key distribution in wireless sensor networks , wireless network , wireless wan , mobile wireless sensor network , distributed computing , computer security , wireless , telecommunications
With the proposal of China’s new infrastructure strategy, big data, artificial intelligence and 5G networks are bound to get further rapid development, and the Internet of Things, as a key component, is also getting more and more extensive attention and in-depth research. Wireless sensor network is an important part of the development of the Internet of Things, which is widely used in military, transportation, industry and daily life. Therefore, the security of wireless sensor network is particularly important. Due to the limited resources such as energy, storage and space, existing heavyweight security authentication methods are not suitable for wireless sensor networks. Based on the block chain design idea, a lightweight wireless sensor network security authentication model is proposed to solve the data security problem of wireless sensor network terminal. The model divides the sensor network into two layers: global network and local network. The local network adopts asymmetric encryption for centralized security authentication. The global network uses directed acyclic graph (DAG) and Tangle technology to construct the account books, and uses the key nodes and random walk method to verify the consistency.