Patents by Inventor Yongha SON

Yongha SON 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).

  • Methods of generating encryption key and digital signature based on lattices
    Patent number: 11522718
    Abstract: Disclosed is a method of generating digital signature information comprising: receiving a message; computing a particular solution in which a result of calculating the particular solution in a public key becomes a function-processed output value predetermined in the received message; and generating digital signature information for the message using the computed particular solution, wherein the public key is computed using a ring having a dimension (d) represented by a power of 2 and an integer multiplication of 3 or more.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 6, 2022
    Assignees: CRYPTO LAB INC., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jung Hee Cheon, Yongha Son, Duhyeong Kim
  • IDENTITY-BASED ENCRYPTION METHOD BASED ON LATTICES
    Publication number: 20220021535
    Abstract: A calculation device is disclosed. The calculation device includes: a memory storing at least one instruction and identity information; and a processor performing the at least one instruction, wherein the processor may randomly sample small elements, generate a function-processed output value by function-processing the stored identity information, and generate an encrypted text for a message by using a master public key computed using a ring having a dimension (d) represented by a power of 2 and an integer multiplication of 3 or more, the sampled small elements and the function-processed output value.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 20, 2022
    Inventors: Jung Hee CHEON, Yongha SON, Duhyeong KIM
  • METHODS OF GENERATING ENCRYPTION KEY AND DIGITAL SIGNATURE BASED ON LATTICES
    Publication number: 20210167969
    Abstract: Disclosed is a method of generating digital signature information comprising: receiving a message; computing a particular solution in which a result of calculating the particular solution in a public key becomes a function-processed output value predetermined in the received message; and generating digital signature information for the message using the computed particular solution, wherein the public key is computed using a ring having a dimension (d) represented by a power of 2 and an integer multiplication of 3 or more.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Jung Hee CHEON, Yongha SON, Duhyeong KIM