Yucui Guo received the Science degree in mathematics from Jilin University, Changchun, P.R. China, in 1982 and the M.S. of Technology in Academe of Railroad Science, Beijing, PR China, in 1988 and Ph.D. degree in Beijing Institute of Technology, Beijing, P.R. China, in 1997. She worked at Shenyang Institute of Technology as a teacher from 1982 to 1985 and at Beijing automobile Institute as a Design Engineer from 1988 to 1994. Since Eight 1997, she has been with the School of Science, Beijing University of Telecommunications and Posts, where she is currently a Professor. Her current research interests lie in the areas of Applying Mathematics and Information Security, Trust Management. She is the author of books titled Introduction of Nonlinear Partial Differential Equations and Mathematical Methods in Physics Science (Tsinghua University Press, 2008 & 2005). She is now presiding over a Project of National Natural Science Foundation of China--Research on Autonomic Trust Management for Fundamental Software Platform.