To balance the availability and security of medical data,a lightweight and secure search scheme was designed.The proposed search algorithm involved only two pairings and one multiplication operation,allowing for low consump-tion and security requirements when executing searches using smart contract.Additionally,the scheme employed key policy attribute-based encryption for fine-grained control over search operations,and utilized lightweight encryption al-gorithm and outsourced decryption mechanism to reduce computational overhead on user terminals.Finally,security analysis and experimental evaluations demonstrated the security and feasibility of the proposed scheme.
关键词
医疗数据分享/轻量级/安全搜索/智能合约
Key words
medical data sharing/lightweight/secure search/smart contract
维普
万方数据