JaeCheol Ryou

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In the environment like the Cloud computing or the picture archiving and communications systems (PACS) of the hospital, the user’s data is stored in the storage of a third party. In such entrusted management environment, security is an important issue for the user’s private data. The most basic solution is to encrypt user’s private data. However, if the(More)
As distributed denial-of-service (DDoS) attacks have caused serious economic and social problems, there have been numerous researches to defend against them. The current DDoS defense system relies on a dedicated security device, which is located in front of the server it is required to protect. To detect DDoS attacks, this security device compares incoming(More)
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