Device and Method for Secure Connection

An electronic device comprising:

• a first short-range communication module configured to execute short-range communication with a first electronic device;
• a second short-range communication module configured to execute short-range communication with a third electronic device;
• and
• a processor configured to:
• transmit, when a pairing key that registers the first electronic device as being linked to the electronic device is received from a server device, the pairing key to the first electronic device,
• transmit, to the server device, session key generation information received from the first electronic device,
• decode encrypted security information that is received from the first electronic device based on a session key received from the server device, and
• transmit the decoded information to the third electronic device.

A server device comprising:

• a processor configured to:
• generate and store a pairing key for registering a first electronic device as being linked to an electronic device based on unique information of the first electronic device received from the electronic device,
• transmit the pairing key to the electronic device,
• generate a session key identical to a session key of the first electronic device based on session key generation information of the first electronic device received from the electronic device, and
• transmit the session key to the electronic device.

A secure connection method of an electronic device, the method comprising:

• receiving a pairing key that registers the electronic device as being linked to a second electronic device, from the second electronic device that is connected over a first short-range communication;
• transmitting session key generation information to the second electronic device when authentication with respect to the second electronic device is completed based on the pairing key;
• generating a session key based on the session key generation information, encrypting security information through the session key;
• and
• transmitting the encrypted information to the second electronic device.

A method of an electronic device, the method comprising:

• transmitting, when a pairing key that registers a first electronic device as being linked to the electronic device, is received from a server device, the pairing key to the first electronic device that is connected over a first short-range communication;
• transmitting, to the server device, session key generation information received from the first electronic device;
• decoding, when a session key is received from the server device, encrypted security information that is received from the first electronic device, based on the session key;
• and
• transmitting the decoded information to a third electronic device that is connected over a second short-range communication.