Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12425187 | Stateful order-preserving encryption method and apparatus for enhancing security | Ju Young Kim, Sung-Jin YU, Young-Kyung Lee | 2025-09-23 |
| 12418413 | Apparatus and method for validating data | Young-Kyung Lee, Ju Young Kim, Sung-Jin YU | 2025-09-16 |
| 12095908 | Key generation apparatus and method based on machine learning | Ju Young Kim, Ku Young Chang | 2024-09-17 |
| 11791997 | Method and apparatus for generating secret key based on neural network synchronization | Juyoung Kim, Taek-Young YOUN, Ku Young Chang | 2023-10-17 |
| 11403284 | System for data sharing platform based on distributed data sharing environment based on block chain, method of searching for data in the system, and method of providing search index in the system | Ju Young Kim, Taek-Young YOUN, Ku Young Chang | 2022-08-02 |
| 10902144 | Method and apparatus for securing data | Taek-Young YOUN, Dae-Sung MOON, Ik-Kyun KIM, Seung Hun Jin | 2021-01-26 |
| 10515225 | Method for mutual verifying of data ownership | Taek-Young YOUN, Keonwoo KIM, Ku Young Chang | 2019-12-24 |
| 10270588 | Method and system for additive homomorphic encryption scheme with operation error detection functionality | Taek-Young YOUN, Ku Young Chang | 2019-04-23 |
| 10025811 | Method and apparatus for deduplicating encrypted data | Keonwoo KIM, Taek-Young YOUN, Ku Young Chang | 2018-07-17 |
| 9374220 | System and method for providing compressed encryption and decryption in homomorphic encryption based on integers | Taek-Young YOUN, Jung Yeon Hwang, Ku Young Chang | 2016-06-21 |
| 9331851 | Apparatus and method for giving the compressed encryption functionality to integer-based homomorphic encryption schemes | Taek-Young YOUN, Ku Young Chang | 2016-05-03 |
| 9087277 | Apparatus and method for dynamic multi-dimensional codes with time and visual recognition information | Jung Yeon Hwang, Dowon Hong, Ku Young Chang, Jeong Woon CHOI, Taek-Young YOUN +1 more | 2015-07-21 |
| 8966273 | Lightweight group signature system and method with short signature | Jung Yeon Hwang, Dowon Hong, Ku Young Chang, Jeong Woon CHOI, Taek-Young YOUN | 2015-02-24 |
| RE45213 | Method of managing user key for broadcast encryption | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Sung-joon Park, Jung Hee Cheon +2 more | 2014-10-28 |
| 8873749 | Multi-user searchable encryption system and method with index validation and tracing | Ku Young Chang, Do Won Hong | 2014-10-28 |
| RE45191 | Method of managing user key for broadcast encryption | Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Sung-joon Park, Jung Hee Cheon +2 more | 2014-10-14 |
| 8817978 | Order-preserving encryption and decryption apparatus and method thereof | Do Won Hong | 2014-08-26 |
| 8812867 | Method for performing searchable symmetric encryption | Do Won Hong, Hyun Sook Cho | 2014-08-19 |
| 8745696 | Apparatus and method for privacy protection in association rule mining | Abedelaziz Mohaisen, Do Won Hong | 2014-06-03 |
| 8639927 | Method of user-authenticated quantum key distribution | Jeong Woon CHOI, Ku Young Chang, Do Won Hong | 2014-01-28 |
| 7929705 | Method of managing user key for broadcast encryption | Dae-youb Kim, Weon-il Jin, Hwan-joon Kim, Sung-joon Park, Jung Hee Cheon +2 more | 2011-04-19 |