China
Africa
Explore chapters and articles related to this topic
Blockchain and Its Integration with the Internet of Things: Applications and Challenges
Published in Monika Mangla, Ashok Kumar, Vaishali Mehta, Megha Bhushan, Sachi Nandan Mohanty, Real-Life Applications of the Internet of Things, 2022
A large amount of personal and private data is handled by centralized, public, and private organizations. Blockchain technology can be deployed for strengthening the security of such a big data [36] generated by IoT applications. The security services that can be provided by blockchain includes: authentication, integrity, confidentiality, and data privacy. The conventional way to provide data privacy is through access control list (ACL) rights to owners of data and encryption techniques to prevent others from accessing the data [37]. Hiding the identity of the user is major concern from a privacy point of view in IoT. Blockchain provide pseudo-anonymous privacy to users. In the case of bitcoin, hash values are used to classify the users of blockchain in place of their real identities to keep them hidden and anonymous within the system unless practiced attacks are executed [38]. Internet censorship is prevented with one of the non-currency implementations of blockchain called Namecoin. It is an altcoin that is used to verify domain name system (DNS) registrations and it is not controlled by any corporation or government. The advantage of Namecoin is that it can be used by anyone to share the information publicly, who is feasibly suppressed for sharing information on the internet. The main benefits of Namecoin are security, efficiency, privacy, and censorship resistance. Alexandra [39] is another open-source project based upon blockchain that provides secure and decentralized freedom of speech. Both these systems can be enhanced with pseudonymous approach of blockchain to hide an individual’s identity, enabling security and privacy [14, 40]. To enhance the security of modern power systems against cyber-attacks Liang et al. [41] proposed the use of a distributed blockchain-based protection framework. Use of docker containers (Con,) in IoT and their benefits are described by [42].
Blockchain for Cybersecurity: Systematic Literature Review and Classification
Published in Journal of Computer Information Systems, 2022
Marina Liu, William Yeoh, Frank Jiang, Kim-Kwang Raymond Choo
The core function of the traditional domain name service is concentrated on the server, which is vulnerable to cache poisoning, DDoS attacks, and DNS hijacking. The combination of blockchain and domain name service is an innovative approach to addressing these security challenges by developing decentralized, secure, and user-friendly naming systems without trusted parties.55 The two popular existing blockchain-based DNS alternatives are Namecoin and Blockstack. Each system node can act as a DNS server, where users can perform domain name registration, transmission, and data revision. The decentralization of domain name services makes it impossible for intruders to manipulate or steal the central record.56 Further, attacks that target servers do not damage the entire blockchain-based DNS.