With popularizing of the computer and rapiding of Internet, our data is transfersed by Internet in daily work, that improves the work's efficiency, reduces the cost and creates many good benefit.However, due to its own problems that Internet protocol there are important security problems (IP packet itself does not inherit any security features, it is easy to fake IP address of the package, a revision of its contents), so that the information transmission on line that is a huge security risk, the risk of Theft or illegal copying has been an increasingly economic losses. Personal computer information security has been an increasing number of threats, back-door of the computer system, important information stolen, and the importent data suffer sophisticated, and the threat exist all the time, thus series of anti-theft protection technology appear, such as: encryption technology, control technology-driven, network Protection and so on.
Here, I designed a personal information security systems. This system is mainly through the use of encryption algorithm to encrypt files, folders general camouflage, modify driver to achieve ban the USB port, CD drives and other equipment and packet filtering firewall to make the personal computer Information safe.
