4 citations · 10 across the 15 of their papers we have counts for
5 papers · 1 filter
Tight Characterizations for Preprocessing against Cryptographic Salting
Fangqi Dong, Qipeng Liu, Kewen Wu
Cryptography often considers the strongest yet plausible attacks in the real world. Preprocessing (a.k.a. non-uniform attack) plays an important role in both theory and practice: a…
On the Feasibility of Unclonable Encryption, and More
Prabhanjan Ananth, Fatih Kaleoglu, Xingjian Li +2
Unclonable encryption, first introduced by Broadbent and Lord (TQC'20), is a one-time encryption scheme with the following security guarantee: any non-local adversary (A, B, C) can…
Hidden Cosets and Applications to Unclonable Cryptography
Andrea Coladangelo, Jiahui Liu, Qipeng Liu +1
In this work, we study a generalization of hidden subspace states to hidden coset states (first introduced by Aaronson and Christiano [STOC '12]). This notion was considered indepe…
On the Impossibility of Post-Quantum Black-Box Zero-Knowledge in Constant Rounds
Nai-Hui Chia, Kai-Min Chung, Qipeng Liu +1
We investigate the existence of constant-round post-quantum black-box zero-knowledge protocols for . As a main result, we show that there is no constant-round post-qua…
On Finding Quantum Multi-collisions
Qipeng Liu, Mark Zhandry
A -collision for a compressing hash function is a set of distinct inputs that all map to the same output. In this work, we show that for any constant , $Θ\left(N^{\fr…