Dr Yang Yixian, Professor and Director of Information Security Cneter, Beijing Univ. of Posts and Telecomm. He is also a member of Commissioner of the Chinese People's Political Consultative Conference. From 1984, he devotes into teaching, investigating, and product-translation of information security, especially the modern cryptology. Up to now, he has published more than 400 papers on the journals such as IEEE Trans. On Com. and so on. He has also published about 20 books at home and abroad. He was the leaders of about 30 important scientific research programs. A large quantity of his achievements has been widely used by domestic and abroad craft brothers. Nearly 30 great prizes have been awared to him by. The key lab of MII leaded by him is the biggest professional information security lab all over China. There are more than 120 excelled doctors and masters of this major in his lab. They made a large number of high-level and practical products on cryptology, information hidding, electronical payment, IDS, security mobile system, security IC card, and firewall etc. Now, a large group of graduates from his lab are serving in manage departments, companies, facilities, military departments all over the China.