3 papers
quant-ph2026
Impersonating Quantum Secrets over Classical Channels
Luowen Qian, Mark Zhandry
We show that a simple eavesdropper listening in on classical communication between potentially entangled quantum parties will eventually be able to impersonate any of the parties.…
quant-ph2024
Hard Quantum Extrapolations in Quantum Cryptography
Luowen Qian, Justin Raizes, Mark Zhandry
Although one-way functions are well-established as the minimal primitive for classical cryptography, a minimal primitive for quantum cryptography is still unclear. Universal extrap…
quant-ph2023
Unconditionally secure quantum commitments with preprocessing
Luowen Qian
We demonstrate how to build computationally secure commitment schemes with the aid of quantum auxiliary inputs without unproven complexity assumptions. Furthermore, the quantum aux…