This inventor holds 4 USPTO granted patents, plus 1 CIPO patent and 3 EPO patents. Top assignees: Hyundai Motor Company, Kia Corporation. Active years: 2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 2025
Title: Eun-Sun Yoo: Innovator in Broadcast Encryption
Introduction
Eun-Sun Yoo is a notable inventor based in South Korea, recognized for her contributions to the field of broadcast encryption. She has developed innovative methods that enhance user key management, which is crucial for secure communications.
Latest Patents
Eun-Sun Yoo holds a patent titled "Method Of Managing User Key For Broadcast Encryption." This patent outlines a user key management method that includes assigning node path identifiers (IDs) to nodes arranged in sequence. It also involves assigning random seed value keys to the nodes according to the node path IDs. The method generates key values by repeatedly applying a hash function to the assigned random seed value keys and assigns the generated key values to the nodes in sequence. This approach significantly reduces the transmission overhead, which is a critical aspect of broadcast encryption, to less than the number of revoked users. Furthermore, the transmission overhead of this method is remarkably reduced compared to the Subset Difference method.
Career Highlights
Eun-Sun Yoo is currently employed at Samsung Electronics Co., Ltd., where she continues to work on advancements in encryption technologies. Her expertise in this area has positioned her as a valuable asset to her team and the company.
Collaborations
Eun-Sun Yoo collaborates with talented colleagues, including Dae-Youb Kim and Weon-Il Jin, who contribute to her projects and research initiatives.
Conclusion
Eun-Sun Yoo's innovative work in broadcast encryption exemplifies her commitment to enhancing security in digital communications. Her contributions are significant in the ongoing development of encryption technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile