JICCE (Çѱ¹Á¤º¸Åë½ÅÇÐȸ)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Cryptanalysis of Hu-Niu-Yang¡¯s Multi-server Password Authenticated Key Agreement Schemes Using Smart Card |
¿µ¹®Á¦¸ñ(English Title) |
Cryptanalysis of Hu-Niu-Yang¡¯s Multi-server Password Authenticated Key Agreement Schemes Using Smart Card |
ÀúÀÚ(Author) |
Sang-Gon Lee
Meng-Hui Lim
Hoon-Jae Lee
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 07 NO. 03 PP. 0340 ~ 0344 (2009. 09) |
Çѱ۳»¿ë (Korean Abstract) |
|
¿µ¹®³»¿ë (English Abstract) |
Multi-server password authentication schemes enable remote users to obtain service from multiple servers with single password without separately registering to each server. In 2007, Hu-Niu-Yang proposed an improved efficient password authenticated key agreement scheme for multi-server architecture based on Chang-Lee¡¯s scheme proposed in 2004. This scheme is claimed to be more efficient and is able to overcome a few existing deficiencies in Chang-Lee¡¯s scheme. However, we find false claim of forward secrecy property and some potential threats such as offline dictionary attack, key-compromise attack, and poor reparability in their scheme. In this paper, we will discuss these issues in depth. |
Å°¿öµå(Keyword) |
Multi-server password authentication
forward Secrecy
cryptography
key agreement
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|