Computer Science

CLC number: TP309.2

Analysis and Improvement of an Authentication Scheme for Fog Computing Services

¹ School of Software, Tiangong University, Tianjin 300387, China
² School of Computer Science and Technology, Tiangong University, Tianjin 300387, China

^† Corresponding author. E-mail: baoyuankang@aliyun.com

Received: 28 September 2023

Abstract

Fog computing utilizes devices in the edge network to transmit data with very low latency and supports high mobility. However, fog computing inherits security and privacy problems from cloud computing. Therefore, various privacy schemes for fog computing have been proposed to prevent different types of attacks. Recently, Weng et al proposed a fog computing authentication scheme; after analyzing, we found that Weng et al's scheme cannot resist user tracking attack and user impersonation attack. Then, we propose an improved scheme through adding a password, modifying the calculation method of E_i, and adding timestamps. In addition, we also compare the improved scheme with existing authentication schemes in terms of security and computational efficiency. The results show that the improved scheme is more secure and has less computation.