Keiichi Noda is Senior Researcher of Keio Research Institute at SFC. As Researcher of Keio Research Institute, Keiichi Noda's current areas of research focused on Enhance Security of Cryptocurrency, Blockchain by Key Management Centric Approach. In the past, he was a member of Research Committee on Health Promotion Grand Design, Ministry of Economy, Trade and Industry (METI), JAPAN to find important factors for enhancement of employee's health capital and loss management of industries. He has authored articles of health management and communication at Industries to bring happiness to company and society. Currently he is working as President and CEO of Health Media, Inc. Health Media was founded in 2010. The privately held company is incorporated in TOKYO, JAPAN. The company's initial activities consisted of research and development of healthcare communication services among doctors, nurses, caregivers and patients with highly controlled patient privacy based on Internet communication technology. The security technology accumulated here is applied to the security of the cryptocurrency.