Patents by Inventor Kwon Ho RYU

Kwon Ho RYU 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).

  • Low-power encryption apparatus and method
    Patent number: 9049007
    Abstract: An encryption apparatus and method that provide a mobile fast block cipher algorithm that supports low-power encryption. The encryption apparatus includes a user interface unit, a key scheduler unit, an initial conversion unit, a round function processing unit, and a final conversion unit. The user interface unit receives plain text to be encrypted and a master key. The key scheduler unit generates a round key from the master key. The initial conversion unit generates initial round function values from the plain text. The round function processing unit repeatedly processes a round function using the round key and the initial round function values. The final conversion unit generates ciphertext from the resulting values of the round function processed in a final round by the round function processing unit.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: June 2, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Deukjo Hong, Jung Keun Lee, Dong-Chan Kim, Daesung Kwon, Kwon Ho Ryu
  • LOW-POWER ENCRYPTION APPARATUS AND METHOD
    Publication number: 20130336480
    Abstract: An encryption apparatus and method that provide a mobile fast block cipher algorithm that supports low-power encryption. The encryption apparatus includes a user interface unit, a key scheduler unit, an initial conversion unit, a round function processing unit, and a final conversion unit. The user interface unit receives plain text to be encrypted and a master key. The key scheduler unit generates a round key from the master key. The initial conversion unit generates initial round function values from the plain text. The round function processing unit repeatedly processes a round function using the round key and the initial round function values. The final conversion unit generates ciphertext from the resulting values of the round function processed in a final round by the round function processing unit.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 19, 2013
    Inventors: Deukjo HONG, Jung Keun LEE, Dong-Chan KIM, Daesung KWON, Kwon Ho RYU