Laura Johnson

Bristol / HIMR


Various constructions of AMD codes


Combinatorics Seminar


27th November 2024, 9:30 am – 10:30 am
Fry Building, 2.04


Algebraic Manipulation Detection codes (or AMD codes) are a type of cryptographical tool used to protect against attacks from active adversaries. These are adversaries who wish to disrupt communications between two parties by altering the messages the parties send to each other in the hope of causing a miscommunication. AMD codes are often constructed using objects known as External Difference Families (EDFs). These are structures comprising subsets of elements of group G with interesting pairwise difference properties. In this talk, I will discuss the ways I have been identifying new constructions of EDFs, and therefore AMD codes.
This talk is based on joint work with Sophie Huczynska, Maura Paterson and Ambrose Law.






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