An efficient certificateless key exchange protocol for heterogeneous networks in human‐centered IoT systems

Abstract

Human-centered Internet of things (IoT) systems enable human beings to enjoy the ubiquitous services and play more and more important roles in our life.A common application scenario in human-centered IoT systems is that two distributed wireless devices from heterogeneous networks want to communicate with each other. However, key generation centers (KGCs) from different networks usually use independent security parameters. It is difficult for two users with different security parameters to establish a common session key. We propose a certificateless key exchange protocol for two different devices managed by different KGCs to address the issue. The security of the proposed protocol is conducted in the random oracle model with the hardness assumption of elliptic curve computational Diffie-Hellman (ECDH) problem. The main merits of our protocol include the following: (a) it enables users from heterogeneous networks to establish upon a shared session key, (b) it can solve the key escrow problem, (c) it does not use bilinear pairings and obtains computational efficiency, and (d) it achieves stronger security compared with other related protocols.

A Novel Security Scheme Supported by Certificateless Digital Signature and Blockchain in Named Data Networking

“…Certificateless signature schemes with batch verification could simultaneously verify the correctness of a large number of signatures from different signers for different messages, improving the efficiency of signature verification [29,30]. The integrated digital signature schemes have also attracted much attention [31,32] in order to support heterogeneous device environments where sensors in industrial IoT environments adopt ID-based cryptographic systems, and smart devices adopt CL-based cryptographic systems. Therefore, the certificate-less signature scheme has broad prospects for development and application scenarios and would become one of the important technological solutions for future digital signatures and identity verification.…”