Abstract: An electronic device includes a secure element in which at least one application package is installed and a processor for communicating with the secure element. The secure element further stores a list with which a part or all of identification information of the at least one application package is registered. The processor controls the secure element such that an application package indicated by the identification information registered with the list is uninstalled, in response to a specified event. Various other embodiments recognized from the specification are also possible.

Abstract: An electronic device and a program management method therefor are provided. The electronic device includes a communication interface, a memory, at least one processor, and a secure circuitry. The secure circuitry is configured to provide a first public key stored in the secure circuitry to the at least one processor. The at least one processor is configured to transmit the first public key to an external device and receive an encrypted secure program encrypted based on the first public key and a second public key generated by the external device, from the external device. The at least one processor is further configured to transmit the second public key and the encrypted secure program to the secure circuitry. The secure circuitry is configured to decrypt the encrypted secure program based on the second public key and a first private key which is symmetrical to the first public key.

Abstract: An electronic device includes a secure element in which at least one application package is installed and a processor for communicating with the secure element. The secure element further stores a list with which a part or all of identification information of the at least one application package is registered. The processor controls the secure element such that an application package indicated by the identification information registered with the list is uninstalled, in response to a specified event. Various other embodiments recognized from the specification are also possible.

Abstract: An electronic device and a program management method therefor are provided. The electronic device includes a communication interface, a memory, at least one processor, and a secure circuitry. The secure circuitry is configured to provide a first public key stored in the secure circuitry to the at least one processor. The at least one processor is configured to transmit the first public key to an external device and receive an encrypted secure program encrypted based on the first public key and a second public key generated by the external device, from the external device. The at least one processor is further configured to transmit the second public key and the encrypted secure program to the secure circuitry. The secure circuitry is configured to decrypt the encrypted secure program based on the second public key and a first private key which is symmetrical to the first public key.

Abstract: A method of a first electronic device to display a preview image is provided. The method includes receiving, by the first electronic device, a user input for setting a screen of a second electronic device, transmitting, by the first electronic device, setting information based on the user input to the second electronic device, receiving, by the first electronic device, the preview image from the second electronic device, and displaying, by the first electronic device, the received preview image, wherein the preview image is for the screen of the second electronic device.

Abstract: A method of a first electronic device to display a preview image is provided. The method includes receiving, by the first electronic device, a user input for setting a screen of a second electronic device, transmitting, by the first electronic device, setting information based on the user input to the second electronic device, receiving, by the first electronic device, the preview image from the second electronic device, and displaying, by the first electronic device, the received preview image, wherein the preview image is for the screen of the second electronic device.

Abstract: An electronic payment system in an electronic device displays a list of electronic payment applications and receives an input for selecting a default electronic payment application from the list. The system sets the selected default electronic payment application as a default electronic payment application application among one or more electronic payment applications and performs electronic payment by activating a payment means of the set default electronic payment application.