基于区块链的可代理健康档案访问方案

THE SECURE ACCESS SCHEME OF PERSONAL HEALTH FILES BASED ON BLOCKCHAIN

将区块链作为数据存储平台的个人健康档案安全访问方案是当下研究的热点。区块链上数据不可篡改的特点,有效保证了数据的安全。因此基于区块链的特性,提出一种基于区块链的个人健康档案安全访问方案,在该方案中,患者提前将其个人健康档案的访问权限授予代理签名者,授权信息存储在代理签名者所属的授权机构私有链中,确保在患者不可控的情况下,医生仍可以对其个人健康档案进行正常访问。该方案满足不可抵赖性和不可伪造性,且具有较高的安全性和较低的运算量。

The security access scheme of personal health files using blockchain as a data storage platform is a hot research topic.The data on the blockchain cannot be tampered with,effectively ensuring the security of the data.Therefore,based on the characteristics of blockchain,a secure access scheme for personal health files based on blockchain is proposed.In this scheme,the patient granted the proxy signer the access rights to his personal health file in advance,and the authorization information was stored in the private chain of the authorized institution to which the proxy signer belonged,so as to ensure that doctors could still have normal access to their personal health files under the circumstances beyond the control of patients.The scheme satisfied non-repudiation and unforgeability,and had higher security and lower computational complexity.