Electronic device for operating security device, and operating method thereof

Abstract

An apparatus and a method for operating a security device in an electronic device are provided. The electronic device includes an application processor, a communication processor, a security subsystem configured to process a security function, an authority assignment device configured to assign authority to access the security subsystem to the application processor or the communication processor, and a processor key management device configured to provide the security subsystem with a first key related to the application processor or a second key related to the communication processor assigned the authority to access the security subsystem from the authority assignment device, wherein the security subsystem is configured to process a security function related to the application processor or the communication processor by using the first key or the second key provided from the processor key management device, based on the authority assignment device assigning the authority to access the security subsystem to the application processor or the communication processor, and initialize data related to the application processor or the communication processor, based on returning the authority to access the security subsystem assigned to the application processor or the communication processor.