Title :
Cryptographic authentication of passwords
Author :
Chang, Chin-Chen ; Hwang, Shin-Jia
Author_Institution :
Inst. of Comput. Sci. & Inf. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan
Abstract :
A password authentication scheme based on El Gamal´s (1985) public key cryptosystem and signature scheme is proposed. This scheme permits each user to choose passwords and identities individually. The password is used as the user´s secret key. Using the users public key and identity, the computer system can generate a set of test patterns and store them in a verification table. In the test pattern generation procedure, users do not need to submit their secret key. In the authentication procedure, the system does not need to use the system´s secret key. Thus the system´s secret key and users´ secret key can be well protected
Keywords :
authorisation; message authentication; public key cryptography; El Gamal public key cryptosystem; password authentication scheme; public key; secret key; signature scheme; test pattern generation; user identity; verification table; Authentication; Computer networks; Computer science; Digital signatures; Human computer interaction; Protection; Public key; Public key cryptography; System testing; Test pattern generators;
Conference_Titel :
Security Technology, 1991. Proceedings. 25th Annual 1991 IEEE International Carnahan Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-0120-X
DOI :
10.1109/CCST.1991.202203
