I am Tarun Kumar Bansal, pursuing PhD in Cryptography at IIIT Delhi, Okhla Phase-3, New Delhi (India).
I am also a part of Joint Collaborative PhD program between QUT, Brisbane, Australia and IIIT-Delhi. After spending last 2 years in Brisbane, currently, I am residing in Delhi, India.

My main research interests are Design and analysis of cryptographic schemes, provable security, Public Key cryptography, Authenticated Encryption, Blockchain.

Presently, my focus is to provide CCA2 secure public key cryptography schemes with the aim of improving the efficiency of current schemes. By efficiency, we refer to reduction of the computational load in the PKC schemes. We intend to prove the security of proposed schemes in various standard security models and analyze the schemes in standard settings.
Along with CCA2 security proofs of proposed schemes by me, I am keen to add flavours of related parts of PKC like handling arbitrary length messages, cipher-text overhead, relaxed security notions, leakage resilient mode and Hybrid encryption to provide a more balance scheme comparative to KEM/DEM one.
One of my objectives is to give a general framework as a final result which will be useful for construction of CCA2 secure PKC schemes along with option of customization depending upon area of application. This aim also include to submerge the KEM/DEM paradigm and present hybrid encryption into one single module.

Advisers: Dr. Donghoon Chang and Dr. Somitra Kumar Sanadhya (IIIT-Delhi); Dr. Josef Pieprzyk and Dr. Xavier Boyen (QUT, Brisbane)

Recent Announcements

  • Completed My PhD After a long waiting, from July 2017, finally I received confirmation letter from both universities (QUT and IIITD) about my completion of PhD. First Collaboration between two institutes taken so ...
    Posted Jun 3, 2018, 12:27 AM by Tarun Kumar Bansal
  • A Journal Paper A SCI Journal Paper In "Journal of Supercomputer" co-author with my CRG group colleagues.Megha Agrawal, Tarun Kumar Bansal, Donghoon Chang, Amit kumar Chauhan, Seokhie Hong, Jinkeon Kang, Somitra ...
    Posted Aug 31, 2016, 7:02 AM by Tarun Kumar Bansal
  • Joined QUT, Brisbane, Australia As part of Joint PhD program, I have joined QUT, Brisbane in April 2016 for rest of my PhD. I hope I'll finish my work quickly and explore more ...
    Posted May 27, 2016, 1:10 AM by Tarun Kumar Bansal
  • TCS research visit for CRG@IIITD only Today, research delegates from TCS research lab has visited our CRG group and interacted with us whole day.
    Posted Aug 6, 2015, 1:59 AM by Tarun Kumar Bansal
  • Launched CRG@IIITD Website Finally, Cryptology Research Group(CRG)@IIITD website is launched. http://crypto.iiitd.edu.in/
    Posted Aug 2, 2015, 10:43 AM by Tarun Kumar Bansal
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