Method and device for transmitting and receiving authentication information in wireless communication system

A method for receiving authentication information from a first device in a second device of a wireless communication system, the method comprising:

• establishing a Wi-Fi peer to peer (P2P) connection between the first device and the second device;
• transmitting, by the second device, to the first device, second-device information about the second device based of the Wi-Fi P2P connection;
• in response to registering in a device-information management server based on the second-device information, receiving, by the second device, from the first device, an authentication code and registration information of the second device, wherein the registration information includes information on a service-providing server and a peer identifier (ID) to be used by the second device to access the service-providing server;
• and the authentication code is obtained by the first device from an authentication server based on an ID of an application associated with a service and a password of the application;
• obtaining, by the second device, from the authentication server, access information for accessing the service-providing server based on the authentication code;
• and
• transmitting, by the second device, to the service-providing server, a service request message for requesting the service based on the access information and the registration information including the information on the service-providing server and the peer ID,
• wherein the information on the service-providing server includes an internet protocol (IP) address for accessing the service-providing server, or port information for accessing the service-providing server.

A first device for transmitting authentication information to a second device in a wireless communication system, the first device comprising:

• communication circuitry;
• and
• at least one processor configured to:
• obtain, from an authentication server, an authentication code based on an identifier (ID) of an application associated with a service and a password of the application,
• establish a Wi-Fi peer to peer (P2P) connection between the first device and the second device;
• obtain, from the second device, second device information about the second device based of the Wi-Fi P2P connection;
• control the communication circuitry to transmit, to a device-information management server, a request for registering the second device in the device-information management server based on the second-device information,
• in response to the second device being registered in the device-information management server, obtain, from the device-information management server, registration information including information on a service-providing server and a peer identifier (ID) to be used by the second device to access the service-providing server, and
• control the communication circuitry to transmit, to the second device, the authentication code and the registration information including the information on the service-providing server and the peer ID,
• wherein the authentication code is transmitted from the second device to the authentication sever such that access information for accessing the service-providing server is obtained by the second device, and
• wherein the information on the service-providing server includes an internet protocol (IP) address for accessing the service-providing server, or port information for accessing the service-providing server.

A second device for receiving authentication information from a first device in a wireless communication system, the second device comprising:

• communication circuitry;
• and
• at least one processor configured to:
• establish a Wi-Fi peer to peer (P2P) connection between the first device and the second device;
• control the communication circuitry to transmit, to the first device, second-device information about the second device based on the Wi-Fi P2P connection,
• in response to registering in a device-information management server based on the second-device information, receive, via the communication circuitry, from the first device, an authentication code and registration information of the second device, wherein the registration information includes information on a service-providing server and a peer identifier (ID) to be used by the second device to access the service-providing server, and the authentication code is obtained by the first device from an authentication server based on an ID of an application associated with a service and a password of the application,
• obtain, from the authentication server, access information for accessing the service-providing server based on the registration information and the authentication code, and
• control the communication circuitry to transmit, to the service-providing server, a service request message for requesting the service based on access information and the registration information including the information on the service-providing server and the peer ID,
• wherein the information on the service-providing server includes an internet protocol (IP) address for accessing the service-providing server, or port information for accessing the service-providing server.