Location History:
- Kanagawa, JP (2011)
- Kawasaki, JP (2001 - 2013)
Company Filing History:
Years Active: 2001-2013
Title: Souichi Okada: Innovator in Encryption Technology
Introduction
Souichi Okada is a prominent inventor based in Kawasaki, Japan, known for his significant contributions to encryption technology. With a total of nine patents to his name, Okada has made remarkable advancements in the field of secure data transmission.
Latest Patents
Okada's latest patents include an encryption apparatus featuring a common key encryption function and an embedded apparatus. This common key block encryption apparatus is designed to perform a nonlinear transformation with a multiplication executed in a binary field or a composite field. It incorporates a computing unit that executes computations other than the nonlinear transformation using fixed value masked input data. Additionally, an XOR operation circuit transforms all input data into fixed value masked input data by XORing it with a fixed mask value. The apparatus also includes a multiplier that executes multiplication based on random value masked input data and a transformation circuit that converts random value masked output data back into fixed value masked output data.
Another notable patent is the encrypting apparatus for common key cipher. This device features a first route selection mechanism that randomly rearranges a plurality of extended key mask values based on a generated random number. An extended key operation device generates an exclusive logical OR of the re-arrayed extended key mask values, a data string representing the extended key, and an input data string. The device also includes a non-linear conversion mechanism that applies non-linear conversion to the rearranged data string, outputting a data string masked by multiple non-linear conversion mask values.
Career Highlights
Souichi Okada is currently employed at Fujitsu Corporation, where he continues to innovate and develop advanced encryption technologies. His work has significantly impacted the field of data security, making it safer for users worldwide.
Collaborations
Okada has collaborated with notable colleagues, including Masahiko Takenaka and Takayuki Hasebe, contributing to various projects that enhance encryption methodologies.
Conclusion
Souichi Okada's contributions to encryption technology have established him as a key figure in the field. His innovative patents and ongoing work at Fujitsu Corporation continue to shape the future of secure data transmission.
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