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Abhijan Bhattacharyya
Researcher at Tata Consultancy Services
Publications - 36
Citations - 382
Abhijan Bhattacharyya is an academic researcher from Tata Consultancy Services. The author has contributed to research in topics: Constrained Application Protocol & Application layer. The author has an hindex of 7, co-authored 33 publications receiving 315 citations.
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Proceedings ArticleDOI
Lightweight Internet protocols for web enablement of sensors using constrained gateway devices
TL;DR: Comprehensive analysis and feature wise categorization of existing dominant protocols, namely MQTT (message queue telemetry transport), CoAP (constrained application protocol) are provided here to achieve improved understanding of the existing issues and gaps in this domain.
Journal ArticleDOI
Lightweight security scheme for IoT applications using CoAP
TL;DR: A lightweight security scheme in CoAP using Advanced Encryption Standard (AES) 128 symmetric key algorithm is proposed, which is resilient to number of security attacks like replay attack, meet-in-the-middle attack and secure under chosen plaintext attack.
Proceedings ArticleDOI
LESS: Lightweight Establishment of Secure Session: A Cross-Layer Approach Using CoAP and DTLS-PSK Channel Encryption
TL;DR: The proposed method is robust under different security attacks like replay attack, DoS and chosen cipher text, and can easily be integrated with an existing system deploying CoAP over DTLS-PSK.
Proceedings ArticleDOI
Lightweight security scheme for vehicle tracking system using CoAP
TL;DR: This paper proposes a payload embedded low cost symmetric-key based robust authentication and key management mechanism on CoAP which minimizes the security overhead by eliminating expensive handshaking and ciphersuite agreement of standard TLS and DTLS.
Proceedings ArticleDOI
Why not keep your personal data secure yet private in IoT?: Our lightweight approach
TL;DR: A novel method of optimizing the need for IoT security enablement, which is based on the estimated privacy risk of shareable sensor data, and introduces and adapting a lightweight scheme for secure channel establishment between the sensing device and the data collection unit/ backend application embedded within CoAP (Constrained Application Protocol), a candidate IoT application protocol and using UDP as a transport.