1. A Generic Transformation Technique from Public Key Encryption to Public Key Encryption with Equality Test in the Random Oracle Model
    Applicant: Hanyang University, Jeonbuk National University
    Inventor: Jae Hong Seo and Hyung Tae Lee
    Korean Patent Registration Number: KR10-2315560-0000 (2021.10)

  2. Computation Method of Encrypted Data using Homomorphic Encryption and Pairing-based Encryption and Server using the Same
    Applicant: SNU R&DB Foundation.
    Inventor: Jung Hee Cheon, Taechan Kim, and Hyung Tae Lee
    Korean Patent Registration Number: KR10-1618941-0000 (2016.04)

  3. Method and System for ID-based Encryption and Decryption
    Applicant: SAMSUNG SDS Co., Ltd., SNU R&DB Foundation.
    Inventor: HyoJin Yoon, Jung Hee Cheon, Seon Young Lee, Hyung Tae Lee, and Jung Hoon Sohn
    Korean Patent Registration Number: KR10-1493212-0000 (2015.02)
    US Patent Registration Number: US 9,379,891 (2016.06)

  4. ID-based Additive Homomorphic Encryption Method
    Applicant: SNU R&DB Foundation, SAMSUNG SDS Co., Ltd.
     Inventor: Jung Hee Cheon and Hyung Tae Lee
    Korean Patent Registration Number: KR10-1327980-0000 (2013.11)

  5. Method of Solving a Discrete Logarithm Problem using Pre-computation Table and Apparatus Thereof
    Applicant: SAMSUNG SDS Co., Ltd., SNU R&DB Foundation.
    Inventor: Hyung Tae Lee, Jung Hee Cheon, and Jin Hong
    Korean Patent Registration Number: KR10-1166129-0000 (2012.07)
    US Patent Registration Number: US 9,077,536 (2015.07)