A Novel Access Control Security Model Based on Ciphertext Policy Attribute-Based Encryption for Smart Homes

Abstract

IoT devices are known to be small, with limited computational and energy capacity. The proliferation of these connected devices and the vulnerabilities resulted from their limitations could lead to threats such as leakage of sensitive information and privacy breach problems. The amount of data generated and transmitted through the IoT is substantial, where this data can be accessed by external entities. Therefore, it is necessary to have an encryption-based system that guarantees the security of this data from unauthorized access. In this paper, we propose Ciphertext Policy Attribute-Based Encryption (CP-ABE) as an encryption solution for data in transit or stored. The proposed solution aims to secure the access control at all layers of communication using (CP-ABE). To evaluate the proposed method, we have conducted performance comparison in every layer of our proposed network topology by measuring the power consumption, After testing the encryption on layers, there is a better layer in performance in terms of the power consumption, and therefore it is better to apply the encryption based on performance measurements by custom simulator that combines the CP-ABE and Internet of Things and Fog Simulation (iFogsim).