An Identity Authentication Scheme for Opportunistic Network Based on Multidimensional Scaling

This paper proposed an identity authentication scheme for opportunistic networks based on multidimensional scaling. The scheme provides a method to evaluate the trust relationship between nodes by calculating the relationship strength using the social context based on MDS and avoid the security issues caused by invalid certification from malicious nodes. Since there are no complete links between nodes in opportunistic network, M-CCIA establishes a trusted certificate network between nodes which implements the distributed identity authentication. Simulation results show that our security scheme will not induce any negative impact on the average delay, but will achieve higher delivery probability and detectable rate of malicious nodes and also lower routing overhead rate.