Xuejia Lai

Xuejia Lai is a cryptographer, currently a professor at Shanghai Jiao Tong University. His notable work includes the design of the block cipher IDEA based on the Lai-Massey scheme, the theory of Markov ciphers, and the cryptanalysis of a number of cryptographic hash functions. His book On the Design and Security of Block Ciphers (ISBN 978-3891915738) is frequently cited in cryptography papers.