Patents by Inventor Sungsuk Hong

Sungsuk Hong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Shared key transmission apparatus, automatic teller machine, automatic teller system and method of controlling the automatic teller machine
    Patent number: 8229122
    Abstract: Provided are a shared key transmission apparatus, an automatic teller machine (ATM), and a controlling method thereof. The shared key transmission apparatus may include: a reception unit receiving, from the ATM, a first cryptogram where a random number is encrypted; a decryption unit restoring the random number from the first cryptogram; an encryption unit encrypting the shared key using the restored random number; and a transmission unit transmitting the encrypted shared key to the ATM. The ATM may include: an encryption unit generating a random number and encrypting the random number to generate a first cryptogram; a transmission unit transmitting the first cryptogram to the shared key transmission apparatus; a reception unit receiving, from the shared key transmission apparatus, a shared key that is encrypted using the restored random number; and a decryption unit restoring the shared key from the encrypted shared key using the generated random number.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: July 24, 2012
    Assignee: Nautilus Hyosung Inc.
    Inventors: Boick Chang, Seungtaek Lim, Sungsuk Hong
  • SHARED KEY TRANSMISSION APPARATUS, AUTOMATIC TELLER MACHINE, AUTOMATIC TELLER SYSTEM AND METHOD OF CONTROLLING THE AUTOMATIC TELLER MACHINE
    Publication number: 20100135499
    Abstract: Provided are a shared key transmission apparatus, an automatic teller machine (ATM), and a controlling method thereof. The shared key transmission apparatus may include: a reception unit receiving, from the ATM, a first cryptogram where a random number is encrypted; a description unit restoring the random number from the first cryptogram; an encryption unit encrypting the shared key using the restored random number; and a transmission unit transmitting the encrypted shared key to the ATM. The ATM may include: an encryption unit generating a random number and encrypting the random number to generate a first cryptogram; a transmission unit transmitting the first cryptogram to the shared key transmission apparatus; a reception unit receiving, from the shared key transmission apparatus, a shared key that is encrypted using the restored random number; and a decryption unit restoring the shared key from the encrypted shared key using the generated random number.
    Type: Application
    Filed: March 26, 2009
    Publication date: June 3, 2010
    Applicant: NAUTILUS HYOSUNG INC.
    Inventors: Boick CHANG, Seungtaek LIM, Sungsuk HONG