Eun-sun Yoo

Title: Eun-sun Yoo: Innovator in Broadcast Encryption

Introduction

Eun-sun Yoo is a notable inventor based in Namyangju-si, South Korea. He has made significant contributions to the field of broadcast encryption, holding a total of 3 patents. His work focuses on improving user key management methods, which are crucial for secure communications.

Latest Patents

One of Eun-sun Yoo's latest patents is a method of managing user keys for broadcast encryption. This innovative approach 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. Key values are generated by repeatedly applying a hash function to the assigned random seed value keys. The generated key values are then assigned to the nodes in sequence. This method effectively reduces the transmission overhead, which is a critical aspect of broadcast encryption, to less than the number of revoked users. Furthermore, the transmission overhead is significantly reduced compared to the Subset Difference method.

Career Highlights

Eun-sun Yoo is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of encryption technologies. His work has been instrumental in enhancing the security and efficiency of broadcast encryption systems.

Collaborations

Eun-sun Yoo has collaborated with several talented individuals, including Dae-youb Kim and Weon-il Jin. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Eun-sun Yoo is a prominent inventor whose work in broadcast encryption has made a significant impact on the field. His innovative methods for managing user keys demonstrate his commitment to enhancing security in communications.