中文摘要：

JIANG Rui is now an associate professor at School of In- formation Science and Engineering, Southeast University. He is also an expert of multimedia information security in Electronic Academy, China. He received his PhD degree of Electronic Engineering in July 2005 at Shanghai Jiaotong University. His research interests include security protocol analysis and design, networking and systems security, secure mobile voice end-to-end communications, and applied cryptography.