Mahesh Sreekumar Rajasree
University of Warsaw, Poland
I am an Assistant Professor at the Institute of Informatics, Faculty of Mathematics, Informatics and Mechanics, University of Warsaw. My research focuses on algorithms and cryptography.
Previously, I was a Postdoctoral Researcher at CISPA Helmholtz Center for Information Security, hosted by Prof. Nico Döttling.
Before joining CISPA, I was a Postdoctoral Fellow in the Department of Computer Science and Engineering at the Indian Institute of Technology Delhi, where I worked with Prof. Venkata Koppula.
I completed my PhD (as a Prime Minister’s Research Fellow) and MTech degree under the guidance of Prof. Manindra Agrawal in the Department of Computer Science and Engineering, Indian Institute of Technology, Kanpur. During that time, I was actively working on the cryptanalysis of symmetric-key cryptosystems and variants of the subset-sum problem.
I received my BTech in Computer Science and Engineering from the National Institute of Technology Calicut.
My Erdős number is 3 (Me -> Antoine Joux -> Andrew M. Odlyzko -> Paul Erdős).
News
| Oct 1, 2026 | Joined the Institute of Informatics, Faculty of Mathematics, Informatics and Mechanics, University of Warsaw, Poland, as an Assistant Professor! |
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| Aug 31, 2026 | Research visit and talk at National Institute of Technology Calicut, hosted by Prof. K. Murali Krishnan. |
| Aug 20, 2026 | “On Robust Combiners for Pseudorandom Codes and PKE with Pseudorandom Ciphertexts” accepted at TCC 2026! |
| Aug 18, 2026 | Research visit and talk at Indian Institute of Space Science and Technology, Trivandrum, hosted by Prof. Deepak Mishra. |
| Jul 3, 2026 | “Pigeonhole Equal Subset Sum: Subexponential Algorithm, Tight Lower Bounds and Average-Case Analysis” accepted at FOCS 2026! |
Selected Publications
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On Robust Combiners for Pseudorandom Codes and PKE with Pseudorandom CiphertextsIn Theory of Cryptography - TCC, 2026
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Pigeonhole Equal Subset Sum: Subexponential Algorithm, Tight Lower Bounds, and Average-Case AnalysisIn Foundations of Computer Science - FOCS, 2026