@article{oai:miyazaki-u.repo.nii.ac.jp:00006426,
 author = {池田, 良磨 and Ikeda, Ryoma and Okazaki, Naonobu and 岡崎, 直宣 and Yamaba, Hisaaki and 山場, 久昭 and Aburada, Kentaro and 油田, 健太郎 and 池田, 良磨 and Ikeda, Ryoma},
 journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki},
 month = {Sep},
 note = {In Japan, our medical data is distributed and managed. Those data will not to be using when visiting medical institution. Since it is important to know the patient’s past medical history in medical case, it is necessary to be able to disclose those data at the medical institution where patient is consulted. So, we propose a method that allows patients to autonomously manage medical data and share it with medical institutions. By managing medical data by patients, it is possible to disclose various data such as healthcare information acquired by the patient, history of medical practices received before, and medicines taken by patients to medical institutions trusted by patients. It also has the advantage of encouraging patients to participate in research. However, managing medical data using a general centralized network concentrates costs on the administrator. In addition, it is difficult to obtain patient consensus because all authority is delegated to the administrator. Therefore, in this research, we used a blockchain that realized a decentralized network. There are some precedents for medical data management using blockchain, and there are issues regarding encryption and permission. In this study, encryption and permission were realized by using proxy re-encryption with attack resistance. In the evaluation experiment, from the viewpoint of usability, the effect of proxy re-encryption used in this study on transactions was investigated by focusing on the execution time. From the results, it was confirmed that the cryptographic method used in this study does not have a fatal effect on transactions.},
 pages = {161--174},
 title = {ブロックチェーン技術とプロキシ再暗号を用いた医療データ管理システムに関する研究},
 volume = {50},
 year = {2021},
 yomi = {イケダ, リョウマ and オカザキ, ナオノブ and ヤマバ, ヒサアキ and アブラダ, ケンタロウ and イケダ, リョウマ}
}