Browsing by Author "Srinivasan, K.S."

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    A hierarchical blockchain architecture for secure data sharing for vehicular networks
    (Springer Science and Business Media B.V., 2023) Srinivasan, K.S.; Divakarla, U.; Chandrasekaran, K.; Reddy, K.H.K.
    Data sharing is common phenomenon between the stakeholders within an organization and it is vital to sustain in the context of application. Internet of Things (IoT) is an umbrella of all applications’ online services like smart city, smart agriculture, smart grid and smart vehicles. In case of autonomous vehicular network (AVN), the data generated by vehicles, sensing units and road side units (RSU) is sensitive in nature so, secure data sharing (SDS) in AVN is the prime importance. In the area of SDS, Blockchain is gaining popularity which is an immutable distributed ledger technology and emerged as one of the prime solutions towards secure data sharing. As an innovative contribution, we proposedBlockchain based hierarchical secure data sharing model for sharing within vehicular network (VN). The proposed architecture is able to share road traffic related information e.g., road conditions, traffic congestion with the nearby vehicles and other stakeholders in the vehicular network. The performance of the proposed model is analyzed by using a simulation study and the efficacy of the simulated results outperforms than that of existing models. © 2023, The Author(s), under exclusive licence to Bharati Vidyapeeth's Institute of Computer Applications and Management.
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    DNS Cache Poisoning: Investigating Server and Client-Side Attacks and Mitigation Methods
    (Institute of Electrical and Electronics Engineers Inc., 2023) Chandrasekaran, K.; Divakarla, U.; Srinivasan, K.S.
    DNS cache poisoning is a type of cyber attack that aims to redirect traffic from legitimate websites to malicious ones. In this attack, the attacker modifies the DNS cache of a DNS server, allowing them to redirect requests for legitimate domain names to their own servers. This can result in distribution of malware and phishing attacks. To mitigate the risk of DNS cache poisoning, various techniques such as DNSSEC, source port randomization, and response rate limiting have been developed. This paper provides an overview of DNS cache poisoning, the techniques used to perform the attack, and the countermeasures that can be employed to protect against it. © 2023 IEEE.