报告名称：Improved Interpolation Attacks on Cryptographic Primitives of Low Algebraic Degree

主办单位：数学与统计学学院

报告专家：李超云

专家所在单位：比利时鲁汶大学

报告时间：2020年10月6日15:30

报告地点：腾讯会议（会议ID：820 171 617）

专家简介：Chaoyun Li received the PhD degree in electrical engineer from imec-COSIC, Department of Electrical Engineering (ESAT), KU Leuven, Belgium in February 2020. Prior to that he received the B.S. and M.S. degrees in mathematics from Hubei University, Wuhan, China, in 2012 and 2015, respectively. He is currently a postdoctoral researcher at imec-COSIC, KU Leuven. From 2015 to 2019, he was a Marie Curie Early Stage Researcher in the EU-funded ECRYPT-NET project. From October 2020 to 2023, he will be funded by an FWO postdoc fellowship. His research interests include cryptography and coding theory.

报告摘要：This talk presents new low-memory interpolation attacks on symmetric key primitives of low degree. For a simple key schedule, we present generic attacks that have either constant memory or constant data complexity. To illustrate our techniques, we have applied the new attacks to the block cipher MiMC.

邀请人：张莎莎