Abstract:
A user device may strengthen the protection level of a digital content by dividing the security and normal modes and performing an operation. In order to further strengthen the protection level of the digital content, the user device may determine whether the main operating system is hacked or not, and blocks the operation in the secure mode. Otherwise, the device authorization information indicating the device security level of the user device is authorized by the content service server, and the user device blocks the operation in the secure mode according to the result.
Abstract:
A user device may strengthen the protection level of a digital content by dividing the security and normal modes and performing an operation. In order to further strengthen the protection level of the digital content, the user device may determine whether the main operating system is hacked or not, and blocks the operation in the secure mode. Otherwise, the device authorization information indicating the device security level of the user device is authorized by the content service server, and the user device blocks the operation in the secure mode according to the result.
Abstract:
A user device may strengthen the protection level of a digital content by dividing the security and normal modes and performing an operation. In order to further strengthen the protection level of the digital content, the user device may determine whether the main operating system is hacked or not, and blocks the operation in the secure mode. Otherwise, the device authorization information indicating the device security level of the user device is authorized by the content service server, and the user device blocks the operation in the secure mode according to the result.
Abstract:
A contents security apparatus for preventing Standard Definition (SD) contents which are protected targets of a level which is relatively lower than that of High Definition (HD) contents from being processed through a trust zone of a processor thereof and a method thereof are provided. The contents security apparatus includes a processor for operating a first Operating System (OS) and for storing authentication information of at least one or more contents and a second OS for limiting access to the first OS, wherein the first OS decrypts and processes contents with a high security level and wherein the second OS decrypts and processes contents with a low security level.