Patents by Inventor Ji-Sang Yoon

Ji-Sang Yoon 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).

  • Method and apparatus for data encryption, method and apparatus for data decryption
    Patent number: 11429735
    Abstract: A method of data encryption according to one embodiment includes generating a structured query language (SQL) syntax that includes manipulation target data and encryption policy identification information in the form of an annotation regarding the manipulation target data, receiving encryption policy information that corresponds to the encryption policy identification information in the form of an annotation from an encryption policy server, and converting the manipulation target data in the SQL syntax into cipher text on the basis of the encryption policy information.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Chang-Hoon Lee, Jang-Hyuk Ahn, Dong-Ghu Seon, Ki-Young Kim, Young-Hwa Lee, Ji-Sang Yoon
  • APPARATUS AND METHOD FOR DATA SECURITY
    Publication number: 20210135853
    Abstract: An apparatus and method for data encryption. The data encryption apparatus includes a receptor to receive distribution target data including one or more distribution target cryptographic keys and a distribution target application from a distributor environment, an encryptor to superencipher the distribution target data using a distribution target environment cryptographic key acquired from a distribution target environment and access information on the distribution target data, and a transmitter to transmit the superenciphered distribution target data and the distribution target application to the distribution target environment.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Chang Hoon LEE, Jang Hyuk AHN, Dong Ghu SEON, Ki Young KIM, Young Hwa LEE, Ji Sang YOON
  • METHOD AND APPARATUS FOR DATA ENCRYPTION, METHOD AND APPARATUS FOR DATA DECRYPTION
    Publication number: 20210110052
    Abstract: A method of data encryption according to one embodiment includes generating a structured query language (SQL) syntax that includes manipulation target data and encryption policy identification information in the form of an annotation regarding the manipulation target data, receiving encryption policy information that corresponds to the encryption policy identification information in the form of an annotation from an encryption policy server, and converting the manipulation target data in the SQL syntax into cipher text on the basis of the encryption policy information.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 15, 2021
    Inventors: Chang-Hoon Lee, Jang-Hyuk Ahn, Dong-Ghu Seon, Ki-Young Kim, Young-Hwa Lee, Ji-Sang Yoon