Integrated Quantum and Classical Key Scheme for Two Servers Password Authentication | Science Publications

Journal of Computer Science

T. S. Thangavel¹  A. Krishnan¹ 

关键词: Password authentication;    two server;    quantum key distribution;    classical key exchange;   

DOI  :  10.3844/jcssp.2010.1396.1405

学科分类：计算机科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Traditional user authentication system uses passwords for theirsecured accessibility in a central server, which is prone to attack by adversaries. The adversaries gainaccess to the contents of the user in attack prone servers. To overcome this problem, the multi-serversystems were being proposed in which the user communicate in parallel with several or all of theservers for the purpose of authentication. Such system requires a large communication bandwidth andneeds for synchronization at the user. Approach: Present an efficient two server user passwordauthentication and reduce the usage of communication traffic and bandwidth consumption between theservers. Integration of quantum and classical key exchange model is deployed to safeguard user accesssecurity in large networks. The proposed work presented, a two server system, front end service serverinteracts directly to the user and the back end control server visible to the service server. Theperformance measure of the user password made for the transformed two long secrets held by bothservice and control server. Further the proposal applied quantum key distribution model along withclassical key exchange in the two server authentication. Three-party Quantum key distribution used inthis model, one with implicit user authentication and other with explicit mutual authentication,deployed for ecommerce buyer authentication in internet peer servers. Results: Effect of online andoffline dictionary attacks prevailing in the single and multi-server systems are analyzed. Theperformance efficiency test carried out in terms success rate of authenticity for two server shows 35%better than single server. The performance of integrated Quantum Key Distribution (QKD) systemsand classical public key model have shown experimentally better performance in terms ofcomputational efficiency and security rounds (11% improvement) than traditional cryptic securitymodel. Conclusion: With the results obtained it is concluded that intricate security principle ofquantum theory and traditional public key model integration provides an improved security model forpassword authentication between the password exchanges of two servers.

【 授权许可】

Unknown