Electronic stamp system for security intensification, control method thereof, and non-transitory computer readable storage medium having computer program recorded thereon

An electronic stamp system for security intensification, the system comprising:

• an electronic stamp which, when the electronic stamp is in contact with an electrostatic screen of a terminal while executing an app which recognizes the electronic stamp in the terminal, communicates with the terminal and provides an encrypted value to the terminal in response to a membership ID related to the app which is being executed in the terminal, transmitted from the terminal;
• the terminal which provides the membership ID related to the app which is being executed in the terminal, electronic stamp information, the encrypted value provided from the electronic stamp, and identification information of the terminal;
• and
• an electronic stamp server which extracts an electronic stamp ID from the electronic stamp information, generates a decryption key based on the extracted electronic stamp ID, decrypts the encrypted value provided from the terminal based on the generated decryption key, verifies authenticity of the electronic stamp by comparing the decrypted value and the membership ID provided from the terminal, and transmits information on the verified authenticity of the electronic stamp to the terminal.

A control method of an electronic stamp system for security intensification, the method comprising:

• recognizing a fingerprint of a user who wants to use an electronic stamp, by means of the electronic stamp;
• transmitting the recognized fingerprint information of the user and electronic stamp information to the electronic stamp server, by means of the electronic stamp;
• performing an authentication process of the fingerprint information, by means of the electronic stamp server;
• transmitting a performing result of the authentication process on the fingerprint information to the electronic stamp, by means of the electronic stamp server;
• and
• activating a one-time password generating unit in the electronic stamp so as to use the electronic stamp based on a fingerprint matching information when the fingerprint matching information is included in the performing result of the authentication process on the fingerprint information.