A Secure And Efficient Data Sharing Scheme For Device-to-Device Communication In LTE-A Network

Device to Device communication(D2D)that refers to direct communication between users without passing through a base station(BS)application of LTE-Advanced(LTE-A)provides many advantages such as higher throughput,spectral efficiency and reduces latency.Despite these obvious advantages,the technology is still facing many security issues.In this paper we propose a secure data sharing protocol in D2D communications between devices of LTE-Advanced users.The proposed protocol is based on certificateless digital signature and signcryption scheme working on elliptic curve group.The idea is that a user who intends to access the data through D2D services sends a request to the base station(eNB)of the conventional cellular network.eNB authenticate user and forward the message to the gateway which detects the user that is able to share the data.Then the trust authority(here eNB)send a notification message to both users to start the data transmission process.The users' authentication and registration phase based on certificateless digital signature scheme ensure to users privacy preservation and non-repudiation.The Data transmission based signcryption guarantee to the data confidentiality,integrity and makes transmission less complex.The advantage of the proposed protocol is dual security.The analysis of the protocol demonstrates the resistance against malicious attack and simulations,and the efficiency in terms of computation cost.