Patents Assigned to TOBESMART CO., LTD.
  • Authentication apparatus using visual cryptography and method thereof
    Patent number: 11057214
    Abstract: An authentication method using visual cryptography in a smart terminal, including: receiving, from an authentication server, a key image in which a user's individual cryptography string generated by the authentication server is separated; requesting user authentication from the authentication server; after requesting the user authentication, receiving, from a camera, an encrypted image shown on a display device; extracting an encrypted area from the received encrypted image; converting the extracted encrypted area to match with the key image in size and shape and overlaying the encrypted area with the key image pre-stored in the smart terminal; displaying an authentication code shown in an area where the encrypted area is overlaid with the key image and receiving the authentication code to transmit the authentication code to the authentication server; and after transmitting the authentication code, receiving an authentication result from the authentication server to provide the authentication result to the us
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 6, 2021
    Assignee: TOBESMART CO., LTD.
    Inventor: Kwang Kim
  • AUTHENTICATION APPARATUS USING VISUAL CRYPTOGRAPHY AND METHOD THEREOF
    Publication number: 20190149335
    Abstract: An authentication method using visual cryptography in a smart terminal, including: receiving, from an authentication server, a key image in which a user's individual cryptography string generated by the authentication server is separated; requesting user authentication from the authentication server; after requesting the user authentication, receiving, from a camera, an encrypted image shown on a display device; extracting an encrypted area from the received encrypted image; converting the extracted encrypted area to match with the key image in size and shape and overlaying the encrypted area with the key image pre-stored in the smart terminal; displaying an authentication code shown in an area where the encrypted area is overlaid with the key image and receiving the authentication code to transmit the authentication code to the authentication server; and after transmitting the authentication code, receiving an authentication result from the authentication server to provide the authentication result to the us
    Type: Application
    Filed: December 14, 2016
    Publication date: May 16, 2019
    Applicant: TOBESMART CO., LTD.
    Inventor: Kwang KIM