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C-DVR: Secure cloud based DVR framework based on personal virtualization

Typical DVRs (Digital Video Recorder) have forms of limited storage areas and it is not easy for them to share contents. If they are extended to Cloud areas, conversion of contents and sharing among multiple devices can come to be made possible through provided computing power. However, appropriate measures are necessary to protect computing processes of contents from inner attackers. This paper proposes a virtualized framework to securely and efficiently transmit DVR contents to users' mobile devices and convert them through Cloud. The proposed scheme can prevent attacks on conversion and transmission processes of contents through isolated personal virtualization, and provide various functions through Cloud Computing Resources.