Experience
Total Experience: 13Y 6M
Experience at NIT Sikkim: 8Y 5M
Teachings
Database Management System,
Number Theory and Cryptography,
Wireless Network Security,
Cryptography and Network Security,
Public Key Infrastructure and Trust Management,
Advanced Topics in Cyber Security,
Advance topic in database management system,
Design and Analysis of Algorithm
Education
Ph.D. (Computer Science and Engineering) - Indian Institute of Technology (ISM) Dhanbad - 2013
M.Tech. (Computer Science) - Indian Institute of Technology (ISM) Dhanbad - 2009
M.Sc. (Mathematics and Computing) - Indian Institute of Technology (ISM) Dhanbad - 2007
B.Sc. (Honors in Mathematics) - Burdwan Raj College, University of Burdwan - 2005
All India Rank - 49 in GATE - 2006
Contact Address :
Dept. of Computer Science and Engineering
National Institute of Technology Sikkim, Ravangla - 737139, Sikkim, India
International Journals
- Vivek Kumar and Sangram Ray. "Pairing-free identity-based digital signature algorithm for broadcast authentication based on modified ECC using battle royal optimization algorithm." Wireless Personal Communications 123, no. 3 (2022): 2341-2365. (SCI, 2021 Impact Factor - 1.563)
- Anindya Kumar Biswas, Mou Dasgupta, Sangram Ray, and Muhammad Khurram Khan. "A probable cheating-free (t, n) threshold secret sharing scheme with enhanced blockchain." Computers and Electrical Engineering 100 (2022): 107925. (SCI, 2019 Impact Factor - 4.152)
- Suman Majumder, Sangram Ray, Dipanwita Sadhukhan, Muhammad Khurram Khan, and Mou Dasgupta. "ESOTP: ECC‐based secure object tracking protocol for IoT communication." International Journal of Communication Systems 35, no. 3 (2022): e5026. (SCI, 2019 Impact Factor - 2.047)
- Diksha Rangwani, Dipanwita Sadhukhan, Sangram Ray, Muhammad Khurram Khan and Mou Dasgupta, "A Robust Provable-Secure Privacy-Preserving Authentication Protocol for Industrial Internet of Things", Peer-to-Peer Networking and Applications, Springer, December 2020, (SCI, 2019 Impact Factor - 2.793)
- Diksha Rangwani, Dipanwita Sadhukhan, Sangram Ray, Muhammad Khurram Khan and Mou Dasgupta, "An Improved Privacy Preserving Remote User Authentication Scheme for Agricultural Wireless Sensor Network", Transactions on Emerging Telecommunications Technologies, Wiley, December 2020, Published online (https://doi.org/10.1002/ett.4218) (SCI, 2019 Impact Factor - 1.594)
- K Sowjanya, Mou Dasgupta and Sangram Ray, "Elliptic Curve Cryptography based Authentication Scheme for Internet of Medical Things", Journal of Information Security and Applications, Elsevier, May 2021, vol. 58, Published online. (https://doi.org/10.1016/j.jisa.2021.102761). (SCI, 2019 Impact Factor - 2.327)
- Dipanwita Sadhukhan, Sangram Ray, Mohammad S. Obaidat and Mou Dasgupta, "A Secure and Privacy Preserving Lightweight Authentication Scheme for Smart-grid Communication Using Elliptic Curve Cryptography", Journal of System Architecture, Elsevier, November 2020, Published online (https://doi.org/10.1016/j.sysarc.2020.101938) (SCI, 2019 Impact Factor - 2.552)
- Suman Mazumder, Sangram Ray, Dipanwita Sadhukhan, Muhammad Khurram Khan and Mou Dasgupta, "ECC-CoAP: Elliptic Curve Cryptography based Constraint Application Protocol for Internet of Things", Wireless Personal Communications, Springer, 2021, vol. 116, pp. 1867-1896 (https://doi.org/10.1007/s11277-020-07769-2). (SCI, 2019 Impact Factor -1.061
- Dipanwita Sadhukhan, Sangram Ray, G.P. Biswas, M.K. Khan and Mou Dasgupta, "A Lightweight Remote User Authentication Scheme for IoT Communication Using Elliptic Curve Cryptography", Journal of Supercomputing, Springer, 2021, vol. 77, pp. 1114-1151. (https://doi.org/10.1007/s11227-020-03318-7) (SCI, 2019 Impact Factor - 2.469)
- Sharmistha Adhikari, Sangram Ray, M.S. Obaidat, and G.P. Biswas, "Efficient and Secure Content Dissemination Architecture for Content Centric Network using ECC-based Public Key Infrastructure", Computer Communications, Elsevier, May 2020, vol. 157, pp. 187-203. (SCI, 2019 Impact Factor - 2.816)
- K Sowjanya, Mou Dasgupta, Sangram Ray and M. S. Obaidat, "An Efficient Elliptic Curve Cryptography Based Without Pairing KPABE for Internet of Things", IEEE Systems Journal, IEEE, June, 2020, vol. 14, no. 2, pp. 2154-2163. (SCI, 2019 Impact Factor - 4.463)
- K Sowjanya, Mou Dasgupta and Sangram Ray, "An Elliptic Curve Cryptography Based Enhanced Anonymous Authentication Protocol for Wearable Health Monitoring Systems", International Journal of Information Security, Springer, August 2019, vol. 19, pp. 129-146. (SCI, 2019 Impact Factor - 1.822)
- Sharmistha Adhikari, Sangram Ray, G. P. Biswas and M. S. Obaidat, "Efficient and Secure Business Model for Content Centric Network using Elliptic Curve Cryptography", International Journal of Communication Systems, Wiley, 2019, vol. 32, no. 1, pp. 1-25. (SCI, 2019 Impact Factor - 1.319)
- Sangram Ray, G. P. Biswas and Mou Dasgupta, "Secure Multi-purpose Mobile Banking using Elliptic Curve Cryptography", Wireless Personal Communications, Springer, 2016, vol. 90, no. 3, pp. 1-24. (SCI, 2019 Impact Factor -1.061)
- Sangram Ray and G. P. Biswas, "A Certificate Authority (CA) Based Cryptographic Solution for HIPAA Privacy/Security Regulations", Journal of King Saud University-Computer and Information Sciences, Elsevier, 2014, vol. 26, no. 2, pp. 170-180. (SCI, 2019 Impact Factor -1.897)
- Sangram Ray and G. P. Biswas, "Design of an Efficient Mobile Health System for Achieving HIPAA Privacy-Security Regulations", International Journal of Wireless and Mobile Computing, Inderscience, 2014, vol. 7, no. 4, pp. 378-387. (Scopus)
- Sangram Ray and G. P. Biswas, "Design of Mobile Public Key Infrastructure (M-PKI) Using Elliptic Curve Cryptography", International Journal on Cryptography and Information Security, 2013, vol. 3, no. 1, pp. 25-37. (Scopus)
- Sangram Ray, Urbi Chatterjee and G. P. Biswas, "Efficient and Secure Communication Architecture for E-Health System", International Journal of Emerging Trends and Technology in Computer Science, 2013, vol. 2, no. 4, pp. 93-101. (Scopus)
- Vivek Kumar, Sangram Ray, Dipanwita Sadhukhan, Jayashree Karmakar and Mou Dasgupta, "Enhanced Pairing-free Identity-based Broadcast Authentication Protocol in WSN using ElGamal ECC", Security and Privacy, Wiley, 2022, e278.
- Uddalak Chatterjee, and Sangram Ray, "Efficient and Secure e-voting scheme using elliptic curve cryptography", Security and Privacy, Wiley, 2022, e283.
- Uddalak Chatterjee, Sangram Ray, Dipanwita Sadhukhan, and Mou Dasgupta, "An Improved Authentication and Key Management Scheme for Hierarchical IoT Network using Elliptic Curve Cryptography". (Communicated)
- Uddalak Chatterjee, and Sangram Ray, "An improved authentication and key management scheme in context of IoT-based wireless sensor network using ECC". (Communicated)
- Sharmistha Adhikari, Sangram Ray, M. S. Obaidat and G. P. Biswas, "ECC-based Efficient and Secure Access Control Scheme for Content Centric Network - A Next Generation Internet" (Communicated)
- Suman Majumder, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, Ashok Kumar Das, Youngho Park, "IEEEECC-PDGPP: ECC-Based Parallel Dependency RFID-Grouping Proof Protocol using Zero Knowledge Property in Internet of Things Environment". (Communicated)
- Suman Majumder, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, Ashok Kumar Das, Youngho Park,"ECC-EXONUM e-VOTING: A Novel Signature based e-Voting Scheme using Blockchain and Zero Knowledge Property". (Communicated)
- Suman Majumder, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, Ashok Kumar Das, Youngho Park, "ECC-HLFB-eVOTING: A Novel ECC based e-Voting System using Hyperledger Fabric-Permissioned Blockchain with Zero Knowledge Property". (Communicated)
- Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta and Muhammad Khurram Khan, "Development of a Provably Secure and Privacy Preserving Lightweight Authentication Scheme for Roaming Services in Global Mobility Network". (Communicated)
- Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, and Joel J.P.C.Rodrigues, "CLAACS-IOD: Certificate-Embedded Lightweight Authentication and Access Control Scheme for Internet of Drones". (Communicated)
- Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, and Joel J.P.C.Rodrigues, "S2PAKEP: Signature based Anonymous Two-Party Authentication and Key Exchange Protocol for Mobile Environment". (Communicated)
- Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, "A Survey on Security and Performance of Authentication Schemes in Generic IoT Environment". (Communicated)
- Rahul Kumar, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta and Muhammad Khurram Khan, "A Lightweight and Robust Mutual Authentication and Key Exchange Protocol for Smart Healthcare during Pandemic". (Communicated)
- Priyanka Das, Sangram Ray, Dipanwita Sadhukhan, Mou Dasgupta, Mahesh Chandra Govil, "LPSRUA-MIoT: Lightweight and Provable Secure Remote User Authentication Scheme for Multi-Gateway Internet of Things". (Communicated)
- Mou Dasgupta, Anindya Biswas, Sangram Ray, Dipanwita Sadhukhan, Ashok Kumar Das, YoungHo Park, "LCAM: Lightweight Certificate Authority for MANET and Securing DSR Routing Protocol". (Communicated)
- Kundan Kanti Saha, Sangram Ray, Dipanwita Sadhukhan and Mou Dasgupta, "ECC based Secure Handshake Protocol for Multicasting CCN-IoT Environment". (Communicated)
- Jayashree Karmakar, Sangram Ray, Dipanwita Sadhukhan, Mou Dasgupta, "Remote Patient Monitoring Scheme in the Context of CCN based IoMT (RPMS-CI)". (Communicated)
- Shauraya Ranjan, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta, "A Novel Smart Contract based Communication Protocol for IoT and Blockchain
Fusion". (Communicated)
- Pubali Halder, Sangram Ray, Sharmistha Adhikari, "A Provably Secure Communication Protocol for Content Centric Network using Pairing-Free Identity-Based Cryptography". (Communicated)
- Pubali Halder, Sangram Ray, Sharmistha Adhikari, "Securing Content-Centric Network without Trusted Third Party". (Communicated)
- Chilukamari Rajesh, Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta and Muhammad Khurram Khan, "A Lightweight Anonymity Preserving Authentication Scheme for Smart-Grid Environment". (Communicated)
International Conferences
- Kundan Kanti Saha, Sangram Ray, and Dipanwita Sadhukhan, "A Lightweight and Precise Information Retrieval System for Organisational Wiki". (Accepted and Presented)
- Mangalam Gupta,, Dipanwita Sadhukhan, and Sangram Ray. "IBDNA-An Improved BDNA Algorithm Incorporating Huffman Coding Technique." In International Conference on Network Security and Blockchain Technology, pp. 132-145. Springer, Singapore, 2022.
- Vivek Kumar, and Sangram Ray. "Continuous Behavioural Authentication System for IoT Enabled Applications." In International Conference on Network Security and Blockchain Technology, pp. 51-63. Springer, Singapore, 2022.
- Vivek Kumar,, and Sangram Ray. "Applying Efforts for Behavior-Based Authentication for Mobile Cloud Security." In Proceedings of the International Conference on Computational Intelligence and Sustainable Technologies, pp. 589-601. Springer, Singapore, 2022.
- Chatterjee, Uddalak, and Sangram Ray. "Security Issues on IoT Communication and Evolving Solutions." In Soft Computing in Interdisciplinary Sciences, pp. 183-204. Springer, Singapore, 2022.
- Divyanshi Verma, Sharmistha Adhikari and Sangram Ray, "Forwarding Strategy in SDN based Content Centric Network", In Proc. of International Conference on Paradigms of Communication, Computing and Data Sciences (PCCDS 2021), National Institute of Technology Kurukshetra, India, May 7-9, 2021, will be available online in Algorithms for Intelligent Systems, Springer, (Accepted), vol. 686, pp. 11-22, (DOI: 10.1007/978-981-15-3020-3_2).
- Uddalak Chatterjee and Sangram Ray, "Cryptanalysis of an Authentication and Key Management Scheme for Hierarchical IoT Network", In Proc. of 2nd International Conference on Advanced Computing and Applications (ICACA 2021), University of Calcutta, Kolkata, India, March 27-28, 2021, will be available online in Advances in Intelligent Systems, Springer, vol. 686, pp. 11-22, (DOI: 10.1007/978-981-15-3020-3_2).
- Suman Majumder, Sangram Ray, Chinmoy Ghosh and Shrayasi Dutta, "Usage of Internet of Things in Home Automation Systems: A Review", In Proc. of International Conference on Modeling, Simulation and Optimization (CoMSO) 2020, NIT Silchar, India, August 3-5, 2020, available online on Smart Innovation Systems and Technologies, Springer, vol. 686, pp. 11-22, (DOI: 10.1007/978-981-15-3020-3_2).
- Chinmoy Ghosh, Suman Majumder, Sangram Ray, Shrayasi Dutta and Satyendranath Mondal, "Different EDGE Detection Techniques: A Review", In proc. of 1st International Conference on Electronic Systems and Intelligent Computing (ESIC) 2020, NIT Arunachal Pradesh, India, March 2-4, 2020, available online on Lecture Notes in Electrical Engineering, Springer, vol. 686, pp. 885-898, (DOI: 10.1007/978-981-15-7031-5_84).
- Uddalak Chatterjee, Dipanwita Sadhukhan and Sangram Ray, "An Improved Authentication and Key Agreement Protocol for Smart Healthcare System in the Context of Internet of Things Using Elliptic Curve Cryptography", In Proceedings of International Conference on IoT Inclusive Life (ICIIL 2019), NITTTR Chandigarh, India, December 19-20, 2019, available online on Lecture Notes in Networks and Systems, Springer, vol. 116, pp. 11-22, (DOI: 10.1007/978-981-15-3020-3_2).
- Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of 2PAKEP: Provably Secure and Efficient Two-Party Authenticated Key Exchange Protocol for Mobile Environment", Proc. of 1st International Conference on Machine Learning, Image Processing, Network Security and Data Sciences (MIND-2019), National Institute of Technology Kurukshetra, India, March 3-4, 2019.
- Diksha Rangwani, Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of a Robust ECC Based Provable Secure Authentication Protocol with Privacy Preserving for Industrial Internet of Things", Proc. of 1st International Conference on Machine Learning, Image Processing, Network Security and Data Sciences (MIND-2019), National Institute of Technology Kurukshetra, India, March 3-4, 2019.
- Sharmistha Adhikari and Sangram Ray, "A Secure Anonymous Mobile Handover Authentication Protocol for Content Centric Network", Proc. of International Conference on Computational Intelligence, Communications, and Business Analytics (CICBA-2018), University of Kalyani, Nadia, W.B, India, July 27-28, 2018, available online on CCIS, Springer, vol. 1031, pp: 360-373, (DOI: 10.1007/978-981-13-8581-0_29).
- Debarpan Tribedi, Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of a Secure and Privacy Preserving Mobile Wallet Scheme with Outsourced Verification in Cloud Computing", Proc. of International Conference on Computational Intelligence, Communications, and Business Analytics (CICBA-2018), University of Kalyani, Nadia, W.B, India, July 27-28, 2018, available online on CCIS, Springer, vol. 1031, pp: 411-424, (DOI: 10.1007/978-981-13-8581-0_33).
- Sharmistha Adhikari and Sangram Ray, "A Lightweight and Secure IoT Communication Framework in Content Centric Network using Elliptic Curve Cryptography", Proc. of International Conference on Recent Trends in Communication, Computing, and Electronics (IC3E-2018), University of Allahabad, Prayag Raj, U.P, India, April 13-15, 2018, available online on LNEE, Springer, vol. 524, pp: 207-216, (DOI: 10.1007/978-981-13-2685-1_21).
- Vivek Kumar and Sangram Ray, "A Smart Mobile Authentication Technique using User Centric Attributes Classifications", Proc. of International Conference on Computational Intelligence & IoT (ICCIIoT-2018), National Institute of Technology Agartala, Tripura, India, December 14-15, 2018, available online in SSRN, Elsevier, pp: 435-440, (https://ssrn.com/abstract=3355502).
- Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of an elliptic curve cryptography based lightweight authentication scheme for smart grid communication", Proc. of 4th International Conference on Recent Advances in Information Technology (RAIT-2018), Indian Institute of Technology (ISM) Dhanbad, Jharkhand, India, March 15-17, 2018, available on IEEE Xplore, pp: 1-6, (DOI: 10.1109/RAIT.2018.8389040).
- Prasanta Kumar Roy, Sangram Ray and Mou Dasgupta, "Energy Efficient Content Dissemination Architecture for Content Centric Network", Proc. of International Conference on Innovative Research in Engineering and Science (IRES-2017), Asian Institute of Technology Bangkok, Thailand, June 16-17, 2017, pp: 1-5.
- Mou Dasgupta, G. P. Biswas and Sangram Ray, "Performance Enhancement by Traffic Re-scheduling of Network Nodes", Proc. of International Conference on Innovative Research in Engineering and Science (IRES-2017), Asian Institute of Technology Bangkok, Thailand, June 16-17, 2017, pp: 6-10.
- Tarun Biswas, Anjan K. Ray, Pratyay Kuila, Sangram Ray, "Resource Factor-Based Leader Election for Ring Networks", Proc. of the International Conference on Computer, Communication and Computational Sciences (IC4S-2016), Aryabhatta College of Engineering and Research Center, Ajmer, India, August 12-13, 2016, available on ACCS, Springer, pp. 251-257.
- Mou Dasgupta, G. P. Biswas and Sangram Ray, "Traffic Flow Modeling of Data Networks and its Solution using Goal Programming", Proc. of World Congress on Engineering 2016 (WCE-16), at Imperial College, London, U.K, Jun 29 - July 1, 2016, vol. 1, pp. 188-193.(http://www.iaeng.org/publication/WCE2016/WCE2016_pp188-193.pdf).
- Sangram Ray and G. P. Biswas, "An ECC based Public Key Infrastructure usable for Mobile Applications", Proc. of the Second International Conference on Computational Science, Engineering and Information Technology (CCSEIT-2012), Avinashilingam University, Coimbatore, India, October 26-28, 2012, available on ACM Digital Library and DBLP, pp. 562-568 (DOI: 10.1145/2393216.2393310).
- Sangram Ray and G. P. Biswas, "Design of RSA-CA Based E-Health System for Supporting HIPAA Privacy-Security Regulations", Proc. of 2nd International Conference on Communication, Computing and Security (ICCCS-12), at National Institute of Technology, Rourkela, India, October 6-8, 2012, available on Procedia Technology Elsevier, 6 (2012), pp. 954-961(DOI: 10.1016/j.protcy.2012.10.116).
- Sangram Ray and G. P. Biswas, "Establishment of ECC-based Initial Secrecy Usable for IKE Implementation", Proc. of World Congress on Engineering 2012 (WCE-12), at Imperial College, London, U.K, July 4-6, 2012, vol. 1, pp. 530-535. (http://www.iaeng.org/publication/WCE2012/WCE2012_pp530-535.pdf).
- Sangram Ray, Rachana Nandan and G. P. Biswas, "ECC Based IKE Protocol Design for Internet Applications", Proc. of 2nd International Conference on Computer, Communication, Control and Information Technology (C3IT-12), at Academy of Technology, Hooghly, W.B, India, February 25-26, 2012, available on Procedia Technology Elsevier, 4 (2012), pp. 522-529 (DOI: 10.1016/j.protcy.2012.05.083).
- Sangram Ray and G. P. Biswas, "Design of Mobile-PKI for Using Mobile Phones in Various Applications", Proc. of First IEEE International Conference on Recent Trends in Information Systems (ReTIS-11), at Jadavpur University, Kolkata, India, December 21-23, 2011, pp. 197-202, available on IEEE-Xplore (DOI: 10.1109/ReTIS.2011.6146885).
- Shauraya Ranjan, Dipanwita Sadhukhan and Sangram Ray, "Integration of Blockchain to Internet of Things (IoT) Environment". (Communicated)
- Priyanka Das, Sangram Ray, Dipanwita Sadhukhan, Mou Dasgupta, "5G-Enabled VANET Architecture Incorporating Security and Trust Management Mechanism". (Communicated)
Book Chapters
- Dipanwita Sadhukhan, Sangram Ray, Mou Dasgupta "Data Fusion in Internet of Medical Things: Towards Trust Management, Security and Privacy." (Accepted)
- Dhananjay Kumar, Sangram Ray and Sharmistha Adhikari, "Future Communication Networks: Architectures, Protocols and Mechanisms for Next Generation Internet", Emerging Technologies In Computing: Theory, Practices and its Advances, CRC Press, Taylor & Francis, March 2021.
- Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of 2PAKEP: Provably Secure and Efficient Two-Party Authenticated Key Exchange Protocol for Mobile Environment." Cloud Security (2021): 88-98.
- Diksha Rangwani, Dipanwita Sadhukhan and Sangram Ray, "Cryptanalysis of a robust ECC-based provable secure authentication protocol with privacy preserving for industrial Internet of Things." In Cloud Security, pp. 76-87. CRC Press, 2021.
- Sangram Ray and G. P. Biswas, "Internet Key Exchange protocol using ECC-based public key certificate", IAENG Transactions on Engineering Technologies, Springer, 2013, vol. 229, pp. 391-404.
sray.cse@nitsikkim.ac.in 
sangram.ism@gmail.com