基于区块链的共享经济隐私保护机制的设计

针对目前共享经济体系架构存在的个人隐私泄露和交易双方信任危机问题,提出一种基于区块链技术的改进方案。该方案可以让用户个人隐私通过加密存储到区块链数据库中。基于区块链技术进行改造后,区块链的去中心化和弱中介化等特点相比传统数据库更难被攻击脱库。共享体和用户对区块链数据库来说是平等的,双方交易更加透明化。共享体和平台任何一笔交易都永久记录在区块链中,信息内容存储通过对称加密算法保存,用户和共享体隐私信息也可得以有效保护。

DESIGN OF SHARING ECONOMY PRIVACY PROTECTION MECHANISM BASED ON BLOCK CHAIN

There are personal privacy disclosure and trust crisis existing in the sharing economy architecture.We proposed an improved scheme for solving the problem based on block chain.User privacy could be encrypted and stored in the block chain database.After the transformation based on block chain,the features of block chain such as decentralization and weak intermediation were more difficult to be attacked than the traditional database.Sharing body and users were equal to the block chain database.And the transaction between the two sides was more transparent.Transaction between the shareing body and the platform was permanently recorded in the block chain.Information content was stored by symmetric encryption algorithm,and the privacy information of the user and the shareing body could be effectively protected.