• Convergence Security Journal
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• v.2 no.2
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• pp.209-216
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• 2002

This treatise deals with designing a database encryption model that interworks with Intranet within a system. Today attempts are being made to substitute legacy client/server computing environment with what interworks with web and database, and thus the question how the security for the database that interworks with Intranet can be secured is emerging as a matter of great importance. This treatise, therefore, offers an encryption model which offers how to create an encryption key using an ID and a password most widely used in Intranet access and by using this key, how to encipher information ill a DB table, providing a maintenance scheme for the Key as well.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.5
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• pp.195-201
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• 2013

The government has invested much budget for 5years to do the Smart-education and operate digital textbook services since 2011. The private enterprises also decided to focus on constructing Smart learning system by investing much budget. If these systems are constructed nationwide and therefore can access to cyber university by using smart devices, we can reduce the information gap and study online lectures to get a grade whenever, whoever and wherever we want to. However, these convenient systems can cause serious problems like falsifying grades by hacking if security systems are weak. In this paper, we formulated cyber university which is secured in terms of security. For this, we simulated the smart-learning system which strengthened the security, considering code algorithm and encryption technique.