The Design and Applications of Efficient and Secure Remote User Authentication

• Main Authors: Yi-Jia Chang, 張宜嘉
• Other Authors: 黃慧鳳
• Format: Others
• Language: en_US
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/cs39h4

碩士 === 臺中技術學院 === 資訊科技與應用研究所 === 98 === User authentication is an important technology to guarantee that only the legal users can access resources from the remote server. In three-party password based key exchange protocol, a client is allowed to share a human-memorable password with a trusted server such that two clients can negotiate a session key to communicate with each other secretly. Based on elliptic curve cryptography (ECC), this dissertation will propose a new three-party password based authenticated key exchange scheme. The proposed method not only reduces computation cost for remote users and a trusted server but also is more efficient than previously proposed schemes. It is very suitable for hardware-limited users such as mobile units or smart cards. To protect user from tracing, recently, new efficient dynamic ID-based authentication schemes were proposed to achieve user anonymity. However, these previously proposed schemes cannot provide mutual authentication and user anonymity properties. Then, an improved method is proposed to remedy their security weakness. Overall, this research is to investigate more efficient techniques in hardware-limited users. We hope the result of proposed method will be more suitable for secure electronic communications.