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Security Enhancement Using Cache Based Reauthentication in WiMAX Based E-Learning System.

Rajagopal C, Bhuvaneshwaran K - ScientificWorldJournal (2015)

Bottom Line: In E-Learning systems the users must be forced to perform reauthentication to overcome the session hijacking problem.The reauthentication of users introduces frequent delay in the data access which is crucial in delaying sensitive applications such as E-Learning.Even though the cache mechanism requires extra storage to keep the user credentials, this type of mechanism reduces the 50% of the delay occurring during reauthentication.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Technology, K. S. Rangasamy College of Technology, Thiruchengode, Namakkal, Tamil Nadu 637 215, India.

ABSTRACT
WiMAX networks are the most suitable for E-Learning through their Broadcast and Multicast Services at rural areas. Authentication of users is carried out by AAA server in WiMAX. In E-Learning systems the users must be forced to perform reauthentication to overcome the session hijacking problem. The reauthentication of users introduces frequent delay in the data access which is crucial in delaying sensitive applications such as E-Learning. In order to perform fast reauthentication caching mechanism known as Key Caching Based Authentication scheme is introduced in this paper. Even though the cache mechanism requires extra storage to keep the user credentials, this type of mechanism reduces the 50% of the delay occurring during reauthentication.

No MeSH data available.


Authentication latency.
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Related In: Results  -  Collection


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fig3: Authentication latency.

Mentions: EAP based authentication protocol provides less authentication delay at the initial stage. As the session time is prolonged the number of user requests for authentication also increases. The load on the authentication server increases. The reauthentication cannot be supported with the expected time of users. So the performance of the EAP based authentication protocol is not suitable for E-Learning. In the proposed CEAP authentication protocol, cache is used to store the user information at initial authentication. When a user requests reauthentication, the user credentials are verified with the cache. Instead of using the authentication for updating the Session Key, ASN gateway performs the key updates with few message transfers. The graph represented in Figure 3 represents the proposed protocol and even when the loads on the system increase the users are served with the minimum delay. The latency for reauthentication in the proposed protocol is reduced by 50% when compared with the EAP based authentication protocol.


Security Enhancement Using Cache Based Reauthentication in WiMAX Based E-Learning System.

Rajagopal C, Bhuvaneshwaran K - ScientificWorldJournal (2015)

Authentication latency.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4553329&req=5

fig3: Authentication latency.
Mentions: EAP based authentication protocol provides less authentication delay at the initial stage. As the session time is prolonged the number of user requests for authentication also increases. The load on the authentication server increases. The reauthentication cannot be supported with the expected time of users. So the performance of the EAP based authentication protocol is not suitable for E-Learning. In the proposed CEAP authentication protocol, cache is used to store the user information at initial authentication. When a user requests reauthentication, the user credentials are verified with the cache. Instead of using the authentication for updating the Session Key, ASN gateway performs the key updates with few message transfers. The graph represented in Figure 3 represents the proposed protocol and even when the loads on the system increase the users are served with the minimum delay. The latency for reauthentication in the proposed protocol is reduced by 50% when compared with the EAP based authentication protocol.

Bottom Line: In E-Learning systems the users must be forced to perform reauthentication to overcome the session hijacking problem.The reauthentication of users introduces frequent delay in the data access which is crucial in delaying sensitive applications such as E-Learning.Even though the cache mechanism requires extra storage to keep the user credentials, this type of mechanism reduces the 50% of the delay occurring during reauthentication.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Technology, K. S. Rangasamy College of Technology, Thiruchengode, Namakkal, Tamil Nadu 637 215, India.

ABSTRACT
WiMAX networks are the most suitable for E-Learning through their Broadcast and Multicast Services at rural areas. Authentication of users is carried out by AAA server in WiMAX. In E-Learning systems the users must be forced to perform reauthentication to overcome the session hijacking problem. The reauthentication of users introduces frequent delay in the data access which is crucial in delaying sensitive applications such as E-Learning. In order to perform fast reauthentication caching mechanism known as Key Caching Based Authentication scheme is introduced in this paper. Even though the cache mechanism requires extra storage to keep the user credentials, this type of mechanism reduces the 50% of the delay occurring during reauthentication.

No MeSH data available.