Kyoohyung Han

Title: Kyoohyung Han: Innovator in Homomorphic Encryption

Introduction

Kyoohyung Han is a prominent inventor based in Goyang-si, South Korea. He has made significant contributions to the field of cryptography, particularly in homomorphic encryption. With a total of 5 patents, Han's work focuses on enhancing data security and processing efficiency.

Latest Patents

One of Han's latest patents is titled "Enabling constant plaintext space in bootstrapping in fully homomorphic encryption." This patent discloses systems and methods for producing an encrypted representation of data. The method involves accessing a set of encoded digits and applying an inverse linear transformation to obtain a first encoded polynomial. It further includes applying modulus switching and a dot product with a bootstrapping key to add an error term to each of the encoded digits. The process continues with linear transformations and digit extraction to achieve batch encryption without the error term.

Another notable patent is "Apparatus for approximately processing encrypted messages and methods thereof." This invention describes an operation apparatus and method for processing homomorphic encrypted messages. The method produces an approximate polynomial corresponding to an operation function, allowing for efficient processing of encrypted messages.

Career Highlights

Kyoohyung Han has worked with several notable companies, including Crypto Lab Inc. and Microsoft Technology Licensing, LLC. His experience in these organizations has contributed to his expertise in cryptography and encryption technologies.

Collaborations

Han has collaborated with esteemed colleagues such as Jung Hee Cheon and Yongsoo Song. Their joint efforts have further advanced the field of homomorphic encryption.

Conclusion

Kyoohyung Han's innovative work in homomorphic encryption has positioned him as a key figure in the field of cryptography. His patents reflect a commitment to enhancing data security and processing capabilities.