Institute of Information Science Academia Sinica
講 題: Quantum indifferentiability
講 者: Gelo Noel Tabia 博士 (Institute of Computer Science, University of Tartu)
時 間: 2018-08-22 (Wed) 10:00 – 12:00
地 點: 資訊所新館106演講廳
邀請人: 鐘楷閔

Indifferentiability is a security notion that allows us compare a real construction to an idealized primitive. It generalizes the notion of indistinguishability to cases where a construction uses a public function that is accessible to all parties. In this talk, I will examine the indifferentiability of classical constructions such as the sponge function and the Feistel network in the the presence of a quantum adversary. I will show that under a certain information-theoretic assumption, perfect quantum indifferentiability is impossible in a large number of cases.