Laltu Sardar

Senior Research Fellow
Cryptology and Security Research Unit,
Indian Statistical Institute, Kolkata

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.

---------- Helen Keller

  • Introduction


    Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing or learning to do. ---------- Pele

    I am a senior research fellow at Cryptology and Security Research Unit, Indian Statistical Institute. I am currently working under supervision of Dr. Sushmita Ruj. Before joining here as a researcher, I did my M. Tech. in computer science from here and M.Sc. in Pure Mathematics from the University of Calcutta.

    My research is in applied cryptography and is driven by real-world problems in data privacy and security. My focus area of research is in Secure Cloud Computing over outsourced encrypted data. Besides theoretical aspects, I like to implement with real-life data to check scalability and efficiency in real environments.

    Besides, I maintain great interest in Private Information Retrieval, Multi-party Computation, Access Control, etc. I am very keen to explore Blockchain Technology and its real world applications. I work on transparency of secure cloud services via blockchain technology.

    Here is my CV (Last Updated: December 2020).


    Education


    Develop a passion for learning. If you do, you will never cease to grow. ------- Anthony J. D'Angelo


    Academic Achievements


    What you get by achieving your goals is not as important as what you become by achieving your goals. -------- Henry David Thoreau

    • Qualified JEST in Computer Science in 2016

    • Qualified GATE in Computer Science in 2016

    • Qualified CSIR-UGC NET JRF in Mathematical Science in Dec, 2013

    • Qualified NBHM (M.Sc) Scholarship for Mathematics in 2013

    • Ranked 3rd in JECA-2012


    Activities


    One of the extraordinary things about human events is that the unthinkable becomes thinkable. -------- Salman Rushdie

    • Talk on "Securely Computing Clustering Coefficient for Outsourced Dynamic Encrypted Graph Data", on 7th Jan, 2021
      in 13th International Conference on COMmunication Systems & NETworkS (ComsNets 2021)
      Bengaluru, India

      Slides ↗.
    • Talk on "FSPVDsse: A Forward Secure Publicly Verifiable Dynamic SSE scheme", on 3rd Sep, 2019
      in The 13th International Conference on Provable and Practical Security
      at James Cook University, Cairns, Australia

      Slides ↗
    • Visited to "Prof. Kouichi Sakurai" in May, 2019
      at Sakurai Laboratory, Faculty of Information Science and Electrical Engineering,
      Kyushu University, Fukuoka, Japan

    • Talk on "Searchable Encryption" on 22-23 May, 2018
      in "Summer Internship in Cryptology",
      at R. C. Bose Centre for Cryptology and Security, Indian Statistical Institute, Kolkata, India

      Slides ↗
    • Talk on "Searchable Encryption" in "ATMW Workshop on Cryptology (2018)", 13th April, 2018
      Indian Statistical Institute, Kolkata, India

    • Attended "IISc-IACR School on Information-theoretic Cryptology", 4-8 January, 2018
      Indian Institute of Science, Bangalore, India

    • Attended "MPC School and Workshop ", 27-31 March, 2017
      Indian Institute of Technology, Bombay, India

    • Attended "ACM India Anual Event, 2017 ", 21st January, 2017
      Amity University, Kolkata, India

    • Attended "Indocrypt 2016 ", 11-14 December, 2016
      Indian Statistical Institute, Kolkata, India

    • Attended "Recent Advances in Authenticated Encryption ", 19-22 September, 2016
      Indian Statistical Institute, Kolkata, India

    • Presented Invited Paper "National Workshop on Crytology, NWC-2016 ", 11-13 Aug, 2016
      JNNCE, Shivamogga, Karnataka, India


    Teaching


    The teachers task is to initiate the learning process and then get out of the way. -------- John Warren


    Publications


    A conclusion is the place where you got tired thinking. ------- Martin H. Fischer

    • Laltu Sardar, Gaurav Bansal, Sushmita Ruj, Kouichi Sakurai "Securely Computing Clustering Coefficient for Outsourced Dynamic Encrypted Graph Data",
      13th International Conference on COMmunication Systems & NETworkS [ComsNets 2021], (Published, 2021) [visit] [arXiv] [eprint]


    • Laltu Sardar and Sushmita Ruj, "FSPVDsse: A Forward Secure Publicly Verifiable Dynamic SSE scheme",
      The 13th International Conference on Provable and Practical Security [ProvSec 2019], (Published, 2019) [visit] [arXiv] [eprint]


    • Laltu Sardar and Sushmita Ruj, "The secure Link Prediction Problem",
      Advances in Mathematics of Communications [AMC 2019-13-4], (Published, 2019) [visit] [arXiv] [eprint]


    • Laltu Sardar and Sushmita Ruj, "Data Survivability and Authenticity in Unattended WSN",
      M. Tech. Thesis, in ISI Kolkata repository [visit]


    • Will be uploaded soon


    Project Works


    Project-based learning can increase retention of content and improve students' attitudes towards learning. -------- Strobel and Van Barneveld

    • M.Tech Final Year Dissertation (June, 2016)
      Data Survivability and Authenticity in Unattended WSN
      Supervisor: Dr. Sushmita Ruj, Indian Statistical Institute, Kolkata

    • Final Year Information Security project (July, 2016)
      Analysing Anonymity and Security of users in BitCoin Protocol
      Supervisor: Dr. Sushmita Ruj, Indian Statistical Institute, Kolkata
      with Animesh Basak Chowdhuri

    • Final Year Information Security project (July, 2016)
      Anomaly user detection in BitCoin Network
      Supervisor: Dr. Sushmita Ruj, Indian Statistical Institute, Kolkata
      with Ayan Das

    • Master Degree Project (June, 2014)
      Application of Coding Theory in Real Life
      Supervisor: Dr. Avishek Adhikari, Dept. of Pure Mathematics, University of Calcutta, Kolkata, India


    contact



    Office

    412, R C Bose Lab,
    C D Deshmukh Bhavan, 202 B. T. Road,
    Indian Statistical Intsitute, Kolkata,
    West Bengal, India- 700108


    Location
    Kolkata, India
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