A REMOTE PASSWORD AUTHENTICATION SCHEME BASED UPON ELGAMALS SIGNATURE SCHEME

被引:32
作者
CHANG, CC
LIAO, WY
机构
[1] Institute of Computer Science and Information Engineering, National Chung Cheng University, Chiayi
关键词
PASSWORD AUTHENTICATION; CHINESE REMAINDER THEOREM (CRT); DIGITAL SIGNATURE; DISCRETE LOGARITHMS; ONE-WAY FUNCTION; TIMESTAMP; SMART CARDS;
D O I
10.1016/0167-4048(94)90063-9
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A conventional password authentication scheme requires password files or verification tables which cannot withstand an attack of replying previously intercepted passwords by an intruder. In this paper, we propose a new password authentication scheme which is based on ElGamal's signature scheme. This scheme is suitable for applications which make use of passwords that are sent from remote locations. Our scheme can verify remote passwords using neither password files nor verification tables. Our password authentication scheme has three phases: (1) the computer system issues a smart card and a password according to the ID submitted by the registering user; (2) the login procedure is invoked; and (3) the password authentication procedure is invoked. We have also analyzed the security of this newly proposed remote password authentication scheme.
引用
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页码:137 / 144
页数:8
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