Method and apparatus for transferring network access information between terminals in mobile communication system

Abstract

The present disclosure relates to: a communication technique merging IoT technology with a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security- and safety-related services, and the like) on the basis of 5G communication technologies and IoT-related technologies. The present invention proposes a method and an apparatus for enabling convenient device-to-device communication service movement by combining a user's device transfer start terminal and an operator support method even if the user starts a device transfer from any terminal when moving a profile between devices. In particular, according to one embodiment of the present invention, it is possible to provide a method comprising the steps of: receiving an input for moving a first profile installed in a first terminal; determining, in the first terminal, that a communication service provider's device transfer method is an ODSA method by checking profile metadata, a configuration server, or a terminal memory; determining, by ECS, an ECS/DP+ authentication method as a subscriber authentication method for the device transfer, and performing transmission together with ECS generation nonce and SM-DP+ address to the terminal; receiving, by the ECS, authentication result data processed by SM-DP+ from the first terminal, and verifying ECS-generated and delivered nonce included in the data and signature data of an SM-DP+ server through a GSMA Root CI certificate; and if verified, providing an activation code to the terminal and displaying a QR code on the screen of the first terminal.