Secure E-mailing System Using Pair Based Scheme and AES with Session Password

In early days Textual passwords are used for security of session but these passwords are vulnerable to the various attacks like Dictionary attack, Shoulder surfing, eves dropping, etc. Further graphical passwords and bio-metric passwords are invented. These two techniques are good performer but they have their own disadvantages. Such as requires extra time for login and more cost respectively. Thus we proposed a session password scheme in which the passwords are used only once for each and when session is terminated the password is no longer in use. The proposed of session password scheme uses Pair Based Authentication scheme for generating session password. In every Data communication system security to data is primary aim. Data security can be provided by many ways. This Paper gives a design of effective security for data communication in network by AES algorithm for encryption and decryption