Certificateless Aggregate Signature Authentication Scheme based on Blockchain in Smart Home Network

The low delay of edge computing can endue home network with all kinds of intelligence and services. However, the existing centralized security authentication mechanism for smart home network still has some problems such as confidentiality and integrity. In the edge computing environment of smart home network, the distributed authentication scheme with high delay is not suitable for this network environment. In order to reduce the network delay, this paper introduces the aggregation signature authentication mechanism without certificate in the process of smart terminal (ST) authentication (CASAB). The smart gateway (SG) needs to generate a signature representing multiple smart terminals, and the edge server (ES) only needs to verify the signature to realize the identity authentication of multiple smart terminals. The security and performance analysis show that this method is safe and efficient.