Monosij Maitra

Email: {first name} AT cse.iitkgp.ac.in / {first name.last name} AT gmail.com

Office: Room 307, CSE Main Building, IIT Kharagpur.

Vocalizing my name: Enounce first 'o' as "awe" prefixed with M and 's' as "sh" [M + awe + no + sh + ij].

I work as a faculty in the CSE department at IIT Kharagpur. My research interests are broadly in the theory and applications of public-key cryptography with a focus on computing on encrypted/authenticated data and building tools to enable distributed trust.

Before joining IIT Kharagpur, I worked as a postdoc jointly with Eike Kiltz (at Ruhr-Universität Bochum) & Giulio Malavolta (at Max Planck Institute for Security and Privacy). Prior to that, I worked as a postdoc with Sebastian Faust (at TU Darmstadt). Earlier, I received a PhD in CSE from IIT Madras and then worked as a research staff at CCD@IITM. During PhD, I was very fortunate to be advised by Shweta Agrawal.

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Research: Publications/Preprints/Patents [DBLP] [Google Scholar]

• Silent Threshold Traitor Tracing & Enhancing Mempool Privacy.
  Anirban Chakrabarti, Monosij Maitra, Arup Mondal, Kushaz Sehgal. [ACM CCS 2025]
• Traitor Tracing without Trusted Authority from Registered Functional Encryption.
  Pedro Branco, Russell W. F. Lai, Monosij Maitra, Giulio Malavolta, Ahmadreza Rahimi, Ivy K. Y. Woo. [ASIACRYPT 2024]
• Round Efficient Byzantine Agreement from VDFs.
  Poulami Das, Lisa Eckey, Sebastian Faust, Julian Loss, Monosij Maitra. [SCN 2024]
• Updatable Policy-Compliant Signatures.
  Christian Badertscher, Monosij Maitra, Christian Matt, Hendrik Waldner. [PKC 2024]
• Registered (Inner-Product) Functional Encryption.
  Danilo Francati, Daniele Friolo, Monosij Maitra, Giulio Malavolta, Ahmadreza Rahimi, Daniele Venturi. [ASIACRYPT 2023]
• Functional Encryption for Turing Machines with Dynamic Bounded Collusion from LWE.
  Shweta Agrawal, Monosij Maitra, Narasimha Sai Vempati, Shota Yamada. [CRYPTO 2021]
• Two-Party Adaptor Signatures From Identification Schemes.
  Andreas Erwig, Sebastian Faust, Kristina Hostakova, Monosij Maitra, Siavash Riahi. [PKC 2021]
• Adaptive Simulation Security for Inner Product Functional Encryption.
  Shweta Agrawal, Benoît Libert, Monosij Maitra, Radu Titiu. [PKC 2020]
• Attribute Based Encryption for Deterministic Finite Automata from DLIN.
  Shweta Agrawal, Monosij Maitra, Shota Yamada. [TCC 2019]
• Attribute Based Encryption (and more) for Nondeterministic Finite Automata from LWE.
  Shweta Agrawal, Monosij Maitra, Shota Yamada. [CRYPTO 2019]
  
• FE and iO for Turing Machines from Minimal Assumptions.
  Shweta Agrawal, Monosij Maitra. [TCC 2018]
• Convergence of the Min-Sum Decoding Scheme for LDPC Codes from a Dynamical Systems Perspective
  Monosij Maitra, Abhik Mukherjee. [EAIT 2014]
  

[PhD Thesis]

• Fine-grained Encryption for Uniform Models of Computation.
  (IBM Best PhD Thesis award).

[Patent(s) Filed/Published]

• Decentralized Multi-Authority Attribute-Based Inner-Product Functional Encryption.
  Pratish Datta, Monosij Maitra, Tapas Pal.
  (US Patent|US2023/0353346A1|Filed by NTT Research, Inc.)

Open Positions

I am looking for motivated Masters & PhD students. Please email, if interested.
Check here for details on admission into research programmes.
Below are some other currently open positions.

Research Group

Professional Activities

Teaching