1 citations · 2 across the 3 of their papers we have counts for
6 papers
Rishabh Batra
A series of recent works has established EFI pairs as the "minimal" assumption for quantum cryptography. Recently, Cavalar et al. [CCC+26] showed that EFI pairs are equivalent to n…
Quantum Leakage Resilience of Shamir Secret Sharing
Rishabh Batra, Fuyuki Kitagawa, Ryo Nishimaki +1
We initiate the study of quantum leakage resilience of unmodified Shamir secret sharing over prime fields. A well-studied leakage model for Shamir's secret sharing classically is s…
Scalable, quantum-accessible, and adaptive pseudorandom quantum state and pseudorandom function-like quantum state generators
Rishabh Batra, Zhili Chen, Rahul Jain +1
We show new constructions for pseudorandom quantum states (PRS) and pseudorandom function-like quantum state (PRFS) generators satisfying scalability, which means the security para…
A robust and composable device-independent protocol for oblivious transfer using (fully) untrusted quantum devices in the bounded storage model
Rishabh Batra, Sayantan Chakraborty, Rahul Jain +1
We present a robust and composable device-independent (DI) quantum protocol between two parties for oblivious transfer (OT) using Magic Square devices in the bounded storage model…
Commitments are equivalent to statistically-verifiable one-way state generators
Rishabh Batra, Rahul Jain
One-way state generators (OWSG) are natural quantum analogs to classical one-way functions. We consider statistically-verifiable OWSGs (sv-OWSG), which are potentially weaker objec…
Quantum secure non-malleable randomness encoder and its applications
Rishabh Batra, Naresh Goud Boddu, Rahul Jain
"Non-Malleable Randomness Encoder"(NMRE) was introduced by Kanukurthi, Obbattu, and Sekar~[KOS18] as a useful cryptographic primitive helpful in the construction of non-malleable c…