An Optimal Strong Password Authentication Protocol with USB Sticks

Authentication is the process for identify the correct user or not. The identities enclose mainly the username and passwords for verifying the two entities. The authentication information’s are stored in the form of encryption in a device which is properly registered in the server. At the time of authentication process performs between user and server the intruder can eves-dropping the communication channel and login into the system by an authorized user. To overcome this optimal strong password authentication (OSPA) protocol uses the multiple hash operation the time of authentication for the users. The server chooses the hash function only at the time of user requests for the login process. So the intruder cannot know the information which transferred at the time of authentication process. The OSPA can improve the authentication process for obtaining mutual communication between user and server. The authentication information will not be known to the intruder. So the multiple hash operation obtains the secure authentication information. The OSPA protect information of the user & server and protect from the guessing attack. The guessing attack prevention performs by the server using the multiple hash operation and USB Stick. Since the intruder cannot perform the guessing attack on the authentication information without knowing the proper hash operations.