This year's Crypto kicked off this morning in sunny Santa Barbara. The early afternoon session in track A covered asymmetric Ccryptography and cryptanalysis. Shi Bai presented A subfield lattice attack on overstretched NTRU assumptions: Cryptanalysis of some FHE and Graded Encoding Schemes , which is joint work with Martin Albrecht and Leo Ducas. The talk consisted of three main parts, an introduction, a presentation of the subfield attack and a discussion on its implications. Introduction The s