区块链下智能合约隐私问题研究

Research on security algorithm of smart contract privacy under blockchain

隐私问题已成为阻碍区块链发展的难题。针对这一问题,文章厘清智能合约、攻击手段、隐私计算工作流程链等核心概念,并通过案例举证,对智能合约中隐私问题解决方案的优劣性进行分析和对比。文章发现用隐私证明能保护用户的身份隐私,安全多方计算能保护智能合约的数据隐私,可信计算环境能保证合约代码的私密性,但数据隐私安全防护仍需要社会各界的高度重视。

Privacy issues has become a difficult problem hindering the development of blockchain.To solve the problem,this paper clarifies core definitions like smart contract,assault options,and flow chain of privacy security algorithm.Through case illustrations,it compares and analyzes pros and cons of solutions on privacy of smart contract.The paper reveals that the privacy certification can protect the user’s privacy;secure multi-party computation can guarantee the data privacy of the smart contract;trusted computing environment can secure the privacy of the contract code;however,the safeguard of data privacy and security still requires close attention from the society.