This inventor holds 1 USPTO granted patent. Top assignee: Sungkyunkwan University. 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: Innovations by Yunhee Jang in Smart Contract Watermarking
Introduction
Yunhee Jang is an innovative inventor based in Suwon-si, South Korea. He has made significant contributions to the field of smart contracts, particularly through his unique watermarking method. His work aims to enhance the security and integrity of smart contracts in blockchain technology.
Latest Patents
Yunhee Jang holds a patent for a "Watermarking method for smart contract." This method involves compiling the source code of a smart contract to create contract creation bytecode and runtime bytecode. It generates a control flow graph that includes multiple byte regions based on the runtime bytecode. The process sets opcode groups by grouping consecutive opcodes in the byte regions, ensuring that the sum of gas costs for these opcodes meets a preset gas cost value. The method extracts a watermarkable byte region and determines watermarking bytes to embed a watermark. It hashes fingerprint information, including details about the watermark and its location, to create a fingerprint that is embedded in the contract creation bytecode. This innovative approach allows for watermark embedding without additional executable code or gas fees in smart contract programs.
Career Highlights
Yunhee Jang is affiliated with Sungkyunkwan University, where he continues to advance his research and development in the field of smart contracts. His academic background and ongoing projects contribute to the growing body of knowledge in blockchain technology.
Collaborations
Yunhee Jang collaborates with notable colleagues, including Hyoungshick Kim and Taeyoung Kim. Their combined expertise fosters a productive research environment that enhances the development of innovative solutions in their field.
Conclusion
Yunhee Jang's contributions to smart contract technology through his watermarking method exemplify the potential for innovation in blockchain applications. His work not only addresses current challenges but also paves the way for future advancements in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile