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quant-ph2026
Quantum Fire with Delegated Cloning
Rohit Chatterjee, Ananta Mukherjee, Vir Pathak +1
Quantum fire is a recently introduced cryptographic primitive consisting of efficiently preparable quantum states, called \emph{flames}, that admit efficient cloning but resist eff…
quant-ph2025
The Round Complexity of Black-Box Post-Quantum Secure Computation
Rohit Chatterjee, Xiao Liang, Omkant Pandey +1
We study the round complexity of secure multi-party computation (MPC) in the post-quantum regime. Our focus is on the fully black-box setting, where both the construction and secur…
quant-ph2021
A Note on the Post-Quantum Security of (Ring) Signatures
Rohit Chatterjee, Kai-Min Chung, Xiao Liang +1
This work revisits the security of classical signatures and ring signatures in a quantum world. For (ordinary) signatures, we focus on the arguably preferable security notion of bl…