Practical Encrypted Key Agreement Using Passwords  

作　　者：WU Shuhua ZHU Yuefei 

机构地区：[1]Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, Henan, China

出　　处：《Wuhan University Journal of Natural Sciences》2006年第6期1625-1628,共4页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foun-dation of China (60473021)

摘　　要：We presented a simple and efficient password-based encrypted key exchange protocol that allows a user to establish secure session keys with remote servers from client terminals in low resource environments. He does not need to carry smart card storing his private information but just needs to know his identity and password. For this purpose, the scheme was implemented over elliptic curves because of their well-known advantages with regard to processing and size constraints. Furthermore, the scheme is provably secure under the assumptions that the hash function closely behaves like a random oracle and that the elliptic curve computational Diffie-Hellman problem is difficult.We presented a simple and efficient password-based encrypted key exchange protocol that allows a user to establish secure session keys with remote servers from client terminals in low resource environments. He does not need to carry smart card storing his private information but just needs to know his identity and password. For this purpose, the scheme was implemented over elliptic curves because of their well-known advantages with regard to processing and size constraints. Furthermore, the scheme is provably secure under the assumptions that the hash function closely behaves like a random oracle and that the elliptic curve computational Diffie-Hellman problem is difficult.

关 键 词：PASSWORD encrypted key exchange Diffie-Hellman assumptions 

分 类 号：TN918[电子电信—通信与信息系统] TP309[电子电信—信息与通信工程]