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quant-ph2021
Beating Classical Impossibility of Position Verification
Jiahui Liu, Qipeng Liu, Luowen Qian
Chandran et al. (SIAM J. Comput.'14) formally introduced the cryptographic task of position verification, where they also showed that it cannot be achieved by classical protocols.…
quant-ph2021
Quantum Algorithms for Variants of Average-Case Lattice Problems via Filtering
Yilei Chen, Qipeng Liu, Mark Zhandry
We show polynomial-time quantum algorithms for the following problems: (*) Short integer solution (SIS) problem under the infinity norm, where the public matrix is very wide, the m…