Multidomain security authentication for the Internet of things

With the rapid development of Internet of Things (IoT) information technology, the IoT has become a key infrastructure for telemedicine, smart home, and intelligent transportation. One of the key technologies for these applications is information sharing and interoperation among multiple domains. However, the security and privacy issues of multidomain interaction face severe security challenges. Aiming at these problems, an certificateless multidomain authentication technology is proposed for IoT. Bilinear mapping and short signature technology are used to realize mutual authentication among entities in different domains, which protects secure data sharing and secure interoperability among domains. Certificateless multidomain authentication can avoid inherent security risks of key escrow in existing identity-based authentication. And it also solves complex certificate management and network bottlenecks problems in traditional certificate-based authentication. The proof and analysis show that the proposed scheme has good security and performance, it supports anonymous authentication among entities, and it is also suitable for large-scale distributed network security alliance authentication mechanism.