©iStockphoto.com/phive2015 Buying into the Blockchain Toward Blockchains for Health-Care Systems ©iStockphoto.com/Leo WoLfert Applying the bilinear pairing technology to ensure privacy protection and accuracy in data sharing. By Hsin-Te Wu and Chun-Wei Tsai Digital Object Identifier 10.1109/MCE.2018.2816306 Date of publication: 13 June 2018 2162-2248/18/©2018IEEE A health-care system gathers comprehensive physiological information and medical records, making its data more important than ever. For example, for years now, the National Health Insurance Administration (https://www.nhi.gov.tw/English/) of Taiwan has requested every doctor, whether in a medical center or private clinic, to upload the diagnosis result, treatment, and prescription. These anamneses have also been stored in the National Health Insurance Research Database (http://nhird.nhri.org.tw/en/index.html) since 1 March 1995, and 99.9% of the Taiwanese population have been enrolled july 2018 ^ IEEE Consumer Electronics Magazine 65http://www.iStockphoto.com/phive2015 http://www.iStockphoto.com/Leo https://www.nhi.gov.tw/English/ http://nhird.nhri.org.tw/en/index.html