> about
i am a cryptographer and computer scientist.
i am currently working as a phd student under the supervision of geoffroy couteau at institut de recherche en informatique fondamentale (irif) as part of université paris-cité.
i completed my undergraduate degree in math // cs at cmi. i completed my masters' at oregon state, where i was advised by mike rosulek and jiayu xu.
> research interests
i am interested in cryptography and theoretical computer science. my work mostly spans foundational results along with the cryptanalysis of concrete cryptographic protocols. more broadly i am interested in mathematical problems, often with a combinatorial flavor, and questions about the nature of computer science and what it implies about the world. recently i have been working on the following keywords:
- mpc hss pcg
- threshold [thing]
- black-box impossibilities
> papers
preprints
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Threshold Signing for Standard Hash-Based Signatures is Expensive
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Minicrypt PRFs Do Not Admit Black-Box Oblivious Evaluations
2026
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From OT to OLE with Almost-Linear Communication
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On the UC-(In)security of PAKE Protocols without Random Oracles
2025
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Multiparty Homomorphic Secret Sharing and More from LPN and MQ
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\(\omega(1/\lambda)\)-Rate Boolean Garbling Scheme from Generic Groups
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Breaking the \(1/\lambda\)-Rate Arithmetic Garbling Barrier
2024
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10-Party Sublinear Secure Computation from Standard Assumptions
> contact
naman [dot] kumar [at] irif [dot] fr
namankr02 [at] gmail [dot] com
please use these emails for all professional inquiries. i have others, but they don't work well; you certainly won't get an immediate response.