Lattice-based cryptographic technique to preserve data confidentiality in edge computing

Lattice-based cryptographic technique to preserve data confidentiality in edge computing

연구 분야: Networking

학회: Cluster Computing

Edge network emerged as the imminent technology in the era of Internet of Things (IoT), where data can be stored at the edge of the network by reducing delay between IoT devices and edge server. The users interact with the edge server through IoT devices to store the data. The confidentiality of data becomes paramount problem of concern, and to protect privacy of data the signature of IoT device is stored along with data at the edge server. Whenever data is requested by the IoT device, the edge server uses signature for verification so as to give access to the IoT device. The devices involved in edge network are small computing devices, where the available storage and computation space is less. Most of the existing scheme uses cryptographic algorithms to generate signature but are vulnerable, due to the growth of quantum computing. Hence, we propose a confidentiality scheme based on lattice-based algorithm to generate digital signature. The proposed scheme generates master key between IoT and edge server using intermediary values, private and public keys respectively. The generated digital signature is used by IoT device while storing the data, and same is verified by the edge server when the data request is raised by the IoT device. The proposed scheme performs better in performance metrics: signature generation delay is 42 msec, uses storage cost of 570 bits and 768 bits at device and server respectively. Further, efficiency of proposed scheme is analyzed using AVISPA tool to show the scheme can resist various attacks.