The Study Of Some Security Problems For The Information Integrated Platform In Manufacturing Enterprises

The main features of modern manufacturing system include digitalization, network , virtualization, greenization and integration. Employing flexible, synergic and agile advanced manufacturing technology a enterprise can enhance its ability to respond quickly to market and have an edge on market competition. However, it is impossible to realize these advanced manufacturing technologies without manufacturing enterprises information integrated platform , consists of software and hardware system, based on computer technology, information technology, network technology, automation technology. Previously, people considered little of the security of information integrated platform in manufacturing enterprises and the study in this field was only confined to the discussion of general security principles. Since computer security events occurred frequently, the security problem research of information integrated platform in manufacturing enterprises is undoutedly significant.first of all, the concept of the information integrated platform in manufacturing enterprises is produced and various security problems about it are discussed in this paper. Secondly, with practical enterprise's security requirements, three security problems including the safe storage technology of electronic documents on information integrated platform in manufacturing enterprises, the access control of web page resources and the safe synchronization of network manufacturing data among enterprises are researched respectively and the corresponding prototype systems are built. The main contents and achievements of this paper are the following:(1) The framework of the information integrated platform in manufacturing enterprises is produced and the security problems and related protected measures are analyzed systematically according to the features of the information integrated platform in manufacturing enterprises and the actual condition of manufacturing enterprises.(2) Aiming at the requirement of safe storage of the electronic documents on the information integrated platform in manufacturing enterprise, using encryption/decryption and compression/uncompression techniques and saving the electronic documents as some special attribute object of large database and managing the enterprise electronic documents effectively through database, a safe access mechanism of functional grant and recommendatory grant to decrease grant management maintenance cost is proposed and the storage mechanism of special database attribute object is studied and the method for saving , accessing and retrieving electronic document quickly is constructed. Thus these methods can make the electronic documents of information integrated platform in manufacturing enterprises get safe, reliable and quick access.(3) According to this circumstance in which web pages are selected as the user interface of manufacturing application system, the safe measures of access control over web page resources are provided. These measures include how a user to log in manufacturing application system under web pages, how to control the resource access on the same web page, how to control the divulgence of the anchor link information of the hyperlink and how to control browser bookmark function's access to old pages.(4) The safe synchronization technique of the network cooperative manufacturing data among enterprises is studied and based on Agent, the safe synchronization model of remote access data is produced. This model has realized the safe synchronization of manufacturing data by constructing remote dialing communication mode, adopting remote procedure call techniques, automatically extracting important sensitive manufacturing data from database requiring synchronization and safely transferring them after encryption. The features of this model are low cost, strong scalability, safe and reliable.(5) The prototype systems about related researchful contents are developed in this paper and it has proved to be a valuable way by applying them to practical 863/CIMS demonstration projec...