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Abstract:As the Internet of Things (IoT) has developed, the emerging sensor network (ESN) that integrates emerging technologies, such as autonomous driving, cyber-physical systems, mobile nodes, and existing sensor networks has been in the limelight. Smart homes have been researched and developed by various companies and organizations. Emerging sensor networks have some issues of providing secure service according to a new environment, such as a smart home, and the problems of low power and low-computing capacity for the sensor that previous sensor networks were equipped with. This study classifies various sensors used in smart homes into three classes and contains the hierarchical topology for efficient communication. In addition, a scheme for establishing secure communication among sensors based on physical unclonable functions (PUFs) that cannot be physically cloned is suggested in regard to the sensor's low performance. In addition, we analyzed this scheme by conducting security and performance evaluations proving to constitute secure channels while consuming fewer resources. We believe that our scheme can provide secure communication by using fewer resources in a smart home environment in the future.

Even though users have been assigned IDs after being authenticated by their real names and resident registration numbers for using Internet services, the I-PIN (Internet Personal Identification Number) service, which is a substitution means for the resident registration number, is recently applied because of security problem. In addition, the OpenID service, which could receive Internet service by integrating into a single ID, is now in force within the country, however, it could be wrongfully used as abusive comments and spam and is pointed out as problems for phishing since it has not user authentications. This paper proposes a technique to strengthen user authentications with the I-PIN when users sign up for memberships in the OpenID, and compensates the phishing problem of relaying parties (RPs) which users could receive Internet service with the OpenID. It could be found that the user authentication and the security of the OpenID are strengthened by comparison and analysis between the existing OpenID service and the OpenID service applying the I-PIN proposed in this paper, and it is designed enough to be safe for phishing.