The key management of wireless sensors based on wireless communication

With the development of wireless sensor network technology, how to distribute and manage keys efficiently and safely has become a challenge. This paper introduces the E-G scheme and q-composite scheme of key management in WSN, and proposes a new C-LU key management scheme. This paper introduces E-G scheme and q-composite scheme, and then puts forward a new C-LU key management scheme, which involves key pre-distribution, communication key establishment, node joining and revocation, and key update in a new round of deployment. By comparing and analyzing the performance indexes of these three schemes, including connectivity and security, C-LU scheme is obviously superior to E-G scheme and q-composite scheme in terms of anti-destructiveness. In terms of connectivity, when the number of keys stored in each node increases, the connectivity of all schemes can finally reach 0.99, but the C-LU scheme can achieve high connectivity with limited key storage values. In terms of security, the C-LU scheme can maintain the high security of the network even when some nodes are attacked. The research in this paper provides a new theoretical basis and technical support for WSN's secure key management system.