Research On Privacy Protection Of Smart Phones Based On Blockchain Technology

With the continuous development and progress of society,smart phones have become a necessity in people's daily life.Their functions are no longer limited to communication,but also widely used in various fields including information storage,data transmission,intelligent navigation and fund transfer.The fact that mobile phones being lost or stolen will bring great inconvenience to one's personal life and become major potential safety hazards,the identity information of users and internal resources may be leaked,and the internal property of mobile phones may be damaged.Based on the characteristics of blockchain technique(its collective maintenance,programmability,great security and credibility)and the application requirements of smart phone privacy protection,we proposed a scheme of smart phone privacy protection based on blockchain technology,which is able to protect mobile phone in the process of manufacturing,market entry,user purchase and use.This scheme has great universality,accuracy and applicability,it can make up for the deficiencies in traditional privacy protection methods of mobile phones,and realize the comprehensive protection of internal resources and property of mobile phones.This paper mainly uses the characteristics of blockchain technology,such as decentralization,tamper-free modification,open and transparent of blockchain technology,digital encryption technology,database technology and software testing technology.It studies a smart phone privacy protection scheme based on blockchain technology,which protects the privacy information,digital resources and assets inside the smart phone.And it focus on the protection of lost or stolen mobile phones,to prevent the loss of privacy information inside mobile phones.The main work of this paper is as follows:(1)Research on Privacy Protection Scheme of Smartphone Based on Blockchain TechnologyA privacy protection scheme for smart phone is designed in this paper,the overall architecture of the scheme includes an interface layer,a blockchain layer and a transaction contract layer,and the physical structure and software architecture of the scheme are also designed in detail.The interface layer uses the underlying interface of the bubi blockchain,and based on this,other interfaces included in this scheme are written.The blockchain layer is divided into network layer and data encapsulation layer.The network layer realizes the construction of P2 P network,the verification and consensus of node transaction data.The data encapsulation layer encapsulates the resource information and transaction data inside the mobile phone,and realize block encapsulation and secure storage of information data by combining with blockchain structure,timestamp and asymmetric encryption technology.The transaction contract layer mainly realizes the formulation of transaction types in the scheme,including mobile phone shipment transaction,mobile phone purchase transaction,information feedback transaction between nodes,information upload transaction and information download transaction between user nodes and cloud.The database needed in the scheme is designed for distributed storage of data.(2)Implementation of Smart Phone Privacy Protection Scheme Based on Blockchain Technology.The main functions of the privacy protection scheme of smart phone are realized in this paper,and a smart phone privacy protection system based on blockchain technology is implemented.Firstly,Tomcat is used as the server in the server side,which realizes the installation and deployment of the system running environment and ensures the normal use of the underlying blockchain.Secondly,the identity information of nodes in the scheme is authenticated legally,and the authentication and authorization process of transaction information between nodes are realized.Thirdly,by combining with the Bubi blockchain platform,the database in proposed scheme is designed as node deployment database for developing and implementing intelligent transaction contract,which guarantees the transaction in the privacy protection system of mobile phone,and realizes the main functions in the system.Finally,test cases are designed to test the main functions of the system,such as registration,login,transaction submission,transaction query,and display the system functional interface and test interface.