Abstract: An electronic device according to various embodiments comprises: a housing; a mounting structure connected to the housing; a touchscreen display; an input interface; a processor operatively connected to the touchscreen display and the input interface; a volatile memory operatively connected to the processor; and a nonvolatile memory operatively connected to the processor, wherein the nonvolatile memory is configured to store a plurality of application programs, and may store instructions which, when executed, enables the processor to receive, from an external electronic device, data including association information between a user-related event and one or more of the application programs, store the data in the nonvolatile memory, detect the user-related event, and load the one or more application programs into the volatile memory, while a user interface of the application program is not displayed on the touchscreen display. Other embodiments are also possible.

Abstract: An electronic device according to various embodiments comprises: a housing; a mounting structure connected to the housing; a touchscreen display; an input interface; a processor operatively connected to the touchscreen display and the input interface; a volatile memory operatively connected to the processor; and a nonvolatile memory operatively connected to the processor, wherein the nonvolatile memory is configured to store a plurality of application programs, and may store instructions which, when executed, enables the processor to receive, from an external electronic device, data including association information between a user-related event and one or more of the application programs, store the data in the nonvolatile memory, detect the user-related event, and load the one or more application programs into the volatile memory, while a user interface of the application program is not displayed on the touchscreen display. Other embodiments are also possible.

Abstract: An electronic device and a control method of the electronic device are provided. The control method includes acquiring second device information on a second electronic device connected to the first electronic device, and determining a first application corresponding to a combination of the first electronic device and the second electronic device based on first device information on the first electronic device and the second device information.

Abstract: A method of operating a portable terminal for encrypting application data is provided. The method includes receiving data input to an application, encrypting the received data by using at least one of an application unique key and a combination of a device unique key of the portable terminal and an application IDentification (ID) that is globally unique, and storing the encrypted data.

Abstract: An electronic device and a control method of the electronic device are provided. The control method includes acquiring second device information on a second electronic device connected to the first electronic device, and determining a first application corresponding to a combination of the first electronic device and the second electronic device based on first device information on the first electronic device and the second device information.

Abstract: Provided is an apparatus and method for managing Digital Rights Management (DRM) contents in a portable terminal. The method includes when a license of the DRM content is consumed, changing license information, which is stored in an external memory, on the DRM content; storing information relating to changed data of the external memory into an internal memory; determining whether the changed license information stored in the external memory has changed by using the information stored in the internal memory when the DRM content is used; and determining whether the DRM content is available according to whether the changed license information has changed.

Abstract: An operating method of a device for installing an application for a device includes receiving an application installation request including an application and an authentication token from an application development apparatus, and installing the application based on the authentication token, which includes serial numbers of devices authorized for the application.

Abstract: A DRM method and apparatus of a mobile terminal is provided for protecting unauthorized use of a time-based DRM content and improving license validation reliability by providing a reliable reference time regardless of changes of local time and time zone. The digital rights management method of the present invention includes detecting a playback command for playing a right protected content, determining whether a previously stored reference parameter exists, which is generated using a reference time received from a server and a local time of the mobile terminal, and testing, when a previously stored reference parameter exists, validity of a license of the right protected content with reference to the reference parameter and the local time when the playback command is detected.

Abstract: A rights sharing system and method for digital rights management (DRM) is provided. The system and method allow an inaccessible terminal, which cannot directly access a content providing server that provides a license, to receive only a key value for playing back DRM content from a terminal having a license and to play back the DRM content. Therefore, the system and method enable the inaccessible terminal to play back a DRM content, without mounting a DRM agent to acquire a license thereto.

Abstract: Provided is an apparatus and method for managing Digital Rights Management (DRM) contents in a portable terminal. The method includes when a license of the DRM content is consumed, changing license information, which is stored in an external memory, on the DRM content; storing information relating to changed data of the external memory into an internal memory; determining whether the changed license information stored in the external memory has changed by using the information stored in the internal memory when the DRM content is used; and determining whether the DRM content is available according to whether the changed license information has changed.