Remote control system for vehicle and operating method thereof

A method of operating a remote control system, the system including a user terminal and a vehicle configured to transmit/receive information to/from the user terminal through a communication network, the method comprising:

• performing, by the vehicle, first authentication on a user by comparing a captured image of the user to a reference image in response to an unlocking signal or start-up request signal received from the user terminal, and transmitting second authentication pre-processing information to the user terminal, the second authentication pre-processing information being obtained by generating an encryption key from a feature vector extracted from the image of the user and encrypting unique information of the user;
• and
• performing, by the user terminal, second authentication on the user by decrypting the second authentication pre-processing information received from the vehicle with a decryption key stored therein.