Post-Quantum Succinct Arguments: Breaking the Quantum Rewinding Barrier

Autor:	Chiesa, Alessandro, Ma, Fermi, Spooner, Nicholas, Zhandry, Mark
Rok vydání:	2021
Předmět:	Computer Science - Cryptography and Security Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We prove that Kilian's four-message succinct argument system is post-quantum secure in the standard model when instantiated with any probabilistically checkable proof and any collapsing hash function (which in turn exist based on the post-quantum hardness of Learning with Errors). This yields the first post-quantum succinct argument system from any falsifiable assumption. At the heart of our proof is a new quantum rewinding procedure that enables a reduction to repeatedly query a quantum adversary for accepting transcripts as many times as desired. Prior techniques were limited to a constant number of accepting transcripts. Comment: 50 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.08140 Zobrazit plný text záznamu View this record from Arxiv