LI Xuelian(xuelian202@163.com): female. Currently, She is a Ph.D student at the Department of applied mathematics, Xidian University, Xi'an, China. She is a Lecture in the Department of applied mathematics, Xidian University. She recieved BS degree in mathematics in 2001. In 2004 she earned M.S. ( Master of Science) Degree in mathematics from Xidian University. Her research interests include information security Cryptography and Cryptography functions. She has authored some journals and conference papers. HU Yupu (yphu@mail.xidian.edu.cn): male. He is a professor in the Xidian University. He received his Master's degree in Probability and Statistics, and received his Ph.D. degrees in cryptography from Xidian University. Currently he serves as a doctoral advisor. And he is a member of China Institute of Communications. His research interests include Information security, Cryptography and Network security. He has published many journals and conference papers, and published a monograph entitled by Symmetric Cryptography. GAO Juntao (gjt_albert@163.com): male. He is a Doctor in Xidian University, and is an associate professor in the School of Telecommunication and Engineering, Xidian University, Xi'an, China.. His Master's and Ph.D. degrees both from Xidian University, all in Cryptography. His research interests include stream cipher and cryptographic functions. He has published some journals and conference papers.