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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.


Cache Access Latency.
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Related In: Results  -  Collection


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fig4: Cache Access Latency.

Mentions: The latency in authentication is also affected with the time needed to locate the E-Learning user entry in the cache. The user request for reauthentication can be served with the minimum delay only when the user credentials are available in the cache. When a frequent cache miss occurs then the user is requested to perform the full authentication with the authentication server which takes more time for authentication. The cache replacement algorithm plays a major role in providing authentication with minimum latency. The proposed system is implemented with Most Frequently Used Cache Replacement Algorithm and the Least Session Based Cache Replacement Algorithm with different cache sizes (Figure 4).


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

Rajagopal C, Bhuvaneshwaran K - ScientificWorldJournal (2015)

Cache Access Latency.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig4: Cache Access Latency.
Mentions: The latency in authentication is also affected with the time needed to locate the E-Learning user entry in the cache. The user request for reauthentication can be served with the minimum delay only when the user credentials are available in the cache. When a frequent cache miss occurs then the user is requested to perform the full authentication with the authentication server which takes more time for authentication. The cache replacement algorithm plays a major role in providing authentication with minimum latency. The proposed system is implemented with Most Frequently Used Cache Replacement Algorithm and the Least Session Based Cache Replacement Algorithm with different cache sizes (Figure 4).

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.