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Security issues and defences for Internet of Things

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Title: Security issues and defences for Internet of Things
Author(s): Zhang, Yu
Contributor: University of Helsinki, Faculty of Science
Degree program: Master's Programme in Computer Science
Specialisation: Networking and Services
Language: English
Acceptance year: 2022
The Internet of Things (IoT) aims at linking billions of devices using the internet and other heterogeneous networks to share information. However, the issues of security in IoT environments are more challenging than with ordinary Internet. A vast number of devices are exposed to the attackers, and some of those devices contain sensitive personal and confidential data. For example, the sensitive flows of data such as autonomous vehicles, patient life support devices, traffic data in smart cities are extremely concerned by researchers from the security field. The IoT architecture needs to handle security and privacy requirements such as provision of authentication, access control, privacy and confidentiality. This thesis presents the architecture of IoT and its security issues. Additionally, we introduce the concept of blockchain technology, and the role of blockchain in different security aspects of IoT is discussed through a literature review. In case study of Mirai, we explain how snort and iptables based approach can be used to prevent IoT botnet from finding IoT devices by port scanning.
Keyword(s): Security Mirai Internet of Things BlockChain

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