Softdog is a computer software encryption method, commonly known as "hardware encryption lock". Computer software is inherently low-cost and easy to spread. Piracy is relatively easy and copyright is difficult to protect. In order to protect their software copyright, commercial software developers often set up some encryption measures, so that only users who have purchased the software product can use it.
Some high-value software may use hardware encryption to protect copyright. The software can work normally only after the user installs the corresponding hardware on the computer's print interface (parallel port) or USB interface. This anti piracy hardware installed on the parallel port or USB port is what we call "dongle" or "software". The software dog can be divided into stand-alone use, mobile device use and network use, but the working principle is basically the same.
The basic working principle of all dongles is similar: when the user starts or uses the software, the software will contact the dongle and read the data. If the dongle returns correct data, the software can be used normally. Otherwise, the software will stop working and display an error message to the user.
From this principle, it can be seen that the design of encryption software is closely related to the good encryption effect of the dongle. Generally speaking, the more frequently the software reads the dongle, the more complex and diverse the data transmitted. The more functions the software reads, the more difficult it is to crack the dongle and the better the protection effect.
In addition, its installation is very simple. Turn off the computer and unplug all power cords from the computer. Insert the dongle into the print socket (the appropriate size socket) on the back of the computer and tighten the retaining screws. If your printer port is already connected to the printer, please unplug the printer cable and install the software dongle.
Then connect the printer cable to the interface behind the software dongle, and tighten the fixing screws. It should be noted that in the process of plugging in and out the dongle or connecting the printer, make sure that the computer has been turned off and all power cables on the computer have been unplugged. Otherwise, the computer motherboard may be damaged.
To check that the dongle is installed, open my computer and locate the rbqyb folder. Double click the dog Exe file. The dongle detector will open. Click the "verify" button to view the detection results of the dongle.
If the computer you use the software on is frequently replaced (for example, the hard disk drive is frequently replaced, or the software is continuously used on different computers), for example, you may want to use the software on both the work computer and the computer at home, you can choose the dongle.
Dongle is a device independent of computer hardware. After the software is registered, if your computer configuration changes or a new computer is replaced, the registration and use of the software will not be affected. Zhejiang University central control operator software dog manufacturer thinks that if you buy a dongle, just insert the dongle into the computer, and the software will automatically read the data in the dongle, so as to identify whether the software has been registered.
The above is the basic information about the softdog. You can use it as a reference. Of course, you can follow our website www.sdjkyqyb Com!