A Survey on Privacy Preservation in Fog-Enabled Internet of Things

Abstract

Despite the rapid growth and advancement in the Internet of Things (IoT ), there are critical challenges that need to be addressed before the full adoption of the IoT. Data privacy is one of the hurdles towards the adoption of IoT as there might be potential misuse of users’ data and their identity in IoT applications. Several researchers have proposed different approaches to reduce privacy risks. However, most of the existing solutions still suffer from various drawbacks, such as huge bandwidth utilization and network latency, heavyweight cryptosystems, and policies that are applied on sensor devices and in the cloud. To address these issues, fog computing has been introduced for IoT network edges providing low latency, computation, and storage services. In this survey, we comprehensively review and classify privacy requirements for an in-depth understanding of privacy implications in IoT applications. Based on the classification, we highlight ongoing research efforts and limitations of the existing privacy-preservation techniques and map the existing IoT schemes with Fog-enabled IoT schemes to elaborate on the benefits and improvements that Fog-enabled IoT can bring to preserve data privacy in IoT applications. Lastly, we enumerate key research challenges and point out future research directions.

A Systematic Review on Privacy-Aware IoT Personal Data Stores

“…Year Systematic Domain Main Goal Ogonji et al [15] ✓ IoT Privacy and security threats, attack surface, vulnerabilities, and countermeasures in IoT. Sarwar et al [25] x IoT and Fog Privacy preservation in IoT and fog-enabled IoT Zainuddin et al [16] x IoT Applications Privacy threats in IoT applications Islam et al [17] ✓ IoT and Big Data Types of privacy attacks and solutions in the IoT and Big Data contexts Zarandi et al [20] x Smart Farming Big Data privacy in smart farming Hireche et al [21] x IoMT Privacy and security in IoMT Shahid et al [23] x IoHT Data breaches and legal regulations in IoHT Alabdulatif et al [24] x IoNT Overview of IoNT and its security and privacy issues Torre et al [18] ✓ IoT Devices Privacy-preservation techniques for IoT devices Tokas et al [26] x IoT Privacy-enhancing technologies and GDPR-specific privacy principles Demertzi et al [27] x IIoT Privacy requirements in the Industrial IoT Fallatah et al [28] x PDS PDS and its advantages and disadvantages Zubaydi et al [29] ✓ IoT and Blockchain Blockchain solutions for IoT security and privacy issues Asqah and Moulahi [30] x…”

“…In their work, Sarwar et al [25] reviewed the research on privacy preservation in IoT and fog-enabled IoT. They categorized publications into two groups according to the privacy needs of IoT-based applications, namely, content and context.…”