International Journal of Recent Development in Engineering and Technology (IJRDET)
In the world of communication there is need of secure transmission of message so password based authentication make a client and a server to authenticate and established a session key through Deffie-Hellman and ElGamal protocol. In single server architecture, passwords are stored in single server only, if it got hacked through attack, the password will get easily accessed by the intruder. To solve this problem two server with password authenticated key exchange is used where symmetric or asymmetric way is applied. So, in the symmetric protocol which is used to initialize the authors' secure transmission, client can form cryptographic keys in two servers.