The Research Of Separation File Storage On Special Control Of Computer

The special control of computer has become an important tool for managingsensitive files and it can store an enormous range of sensitive files, but some securitydanger may exist when it provides data security guarantee.“Company Norden events”attracted more and more people to information security which then became a new hotspot. It is essential to take effective measures to maintain the security of the stored dataand files because of the sensitivity of data stored in the special control of computer. Atpresent, although the special control of computer has been isolated from Internetphysically, there are still many problems, such as the simple method of access control,the arbitrariness of access to data and copying of data. Moreover, using guidingmediums like USB, CD and so on to visit computer, the control mechanism of the olddata system can be skipped then the files and data in the special control of computercan be acquired, which leads to the leakage and loss of sensitive data. In addition, thesecomputers use non-encrypted mobile disk for a lot of data storage. Once the mobiledisk is lost, data will leak out.In order to increase the security intensity of files and data stored in the specialcontrol of computer, we have studied the principle of file system, system realization ofencryption files, USB Key technology and Data Encryption Algorithm, and designed astoring method of separate storage for content data. What’s more, we invented aself-made USB Key hardware equipment and realized a a separate file storage system.The system consists of two components, one is USB Key security management centre,and the other is client program of the special control of computer, which aim to fullyprotect the files and data in the special control of computer.