Password authentication scheme for mobile computing environment

By means of IC(integrated circuit) card,RSA cryptography,and discrete logarithm,a password authentication scheme for mobile computing environment was presented.No verification tables were preserved at the server side to consolidate the security.To be applicable for the mobile computing environment,the scheme was designed as a one-roundtrip protocol to meet the computation-constraint terminals and narrow-bandwidth radio interface.Moreover,the passwords in use could be changed by users without any interaction with servers over the radio.The performance of the scheme was measured by making use of M/G/1/N queuing model and compared with that of TLS.