Implementation of Authentication and Transaction Security based on Kerberos

Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. Kerberos was created by MIT as a solution to network security problems. The Kerberos protocol uses strong cryptography so that a client can prove its identity to a server (and vice versa) across an insecure network connection. After a client and server have used Kerberos to prove their identity, they can also encrypt all of their communications to assure privacy and data integrity as they go about their business. In this paper we tried to implement authentication and transaction security in a Network using Kerberos. This project is embedded with Authentication Server application and used to derive a 64 bit key from user’s password. This key is used by authentication server, to encrypt ticket granting ticket + session key. The key generated by authentication server will be used by the client at the time of transaction through the transaction server to authenticate that transaction client is valid or not