SECURITY IN LARGE NETWORKS

Done by:-

V pcv Raja _138B1AO5A1

Abstract

This work presents combination of classical cryptography (existing) and quantum cryptography (proposed).Two three-party QKDPs(Quantum key distributed protocol), one with implicit user authentication and the other with explicit mutual authentication which is used to make authentication using quantum mechanism

Existing System

In classical cryptography replay attacks are solved by using challenge response mechanism.Classical cryptography cannot detect the existence of passive attacks such as eavesdropping.

Drawbacks

In order to communicate between TC(Trusted center) and participants we need two communication rounds between them.

Proposed Systems

In classical cryptography provides convenient techniques that enable efficient key verification and user authentication but it is not identify eavesdropping.

Advantages

To avoid the network noise in message transmission by identifying the size of bytes transmitted over the network from sender to receiver and remove the extra byte content received from network.

To verify the session key from trusted center and sender which improve key verification and secure the communication.

Modules Sender Module

Encryption Secret key Authentication

Trusted Center Secret Key Verification

Session Key Generation Qubit Generation

Quantum Key Generation Hashing Key Distribution

Receiver ModuleSecret key AuthenticationDecryption

Requirements

Software Requirements

Java Swing MS-Access/SQL ServerJDK 1.5

Hardware Requirements

Hard disk : 40 GBRAM : 512MBProcessor Speed :3.00GHzProcessor :Pentium IV

Conclusion

To maintain data secure while transmitting from sender to receiver. It solves the scalability problem in multicast communications. There is no end for any technology so, the further changes can be done on the basis of requirements.