The dongle is a hardware device that looks like a USB flash drive, also known as an encryption lock, and is a popular industry term for software protection. It is a combination of software and hardware that plugs into a computer's USB port or parallel port. Do you know why the dongle must be inserted behind the host? The following is an analysis by the manufacturer of Zhejiang University's Zhongkong dongle:
The purpose of the dongle is to prevent the illegal use of intellectual property rights through the protection of software and data. Of course, this is only its own attribute, and there are hidden attributes. That is, the software installed through the installation package is only for trial use. With a dongle, it is different, and that is official. The programming languages that dongles can protect are constantly changing with the development of computer hardware and operating systems.
The USB interface of the host is divided into front and rear. The front USB port is plugged into the main board through wiring, with low voltage and instability. The rear USB port is directly welded to the main board, which is relatively stable. To protect the dongle from human damage and ensure the normal operation of the software, please plug the dongle into the USB port on the back of the host, and even if you unplug the dongle, be careful to keep it.
The encryption dog can be carried around, simple and convenient, and plug and play. Employees and finance personnel can only log in to the system with authorization. It brings reliability and convenience to financial management and internal management.
If your machine or LAN is accidentally hit by a Trojan, your background account may be sniffed or intercepted at any time, but a hacker cannot log in to the background without a hardware dog. Therefore, even if your account password is accidentally stolen, as long as it does not have a dongle, it is difficult to achieve remote login to your background, and it is also difficult to manipulate your machine for background login.
There is a one-to-one correspondence between the protected software and the "dongle". During operation, the protected software continuously sends instructions to the "dongle" through API (Application Program Interface) functions to determine whether the "dongle" exists. If it is determined that it does not exist, the software cannot run.
It can be plugged directly into the USB interface of the computer. Each dog has an independent product identification code and an independent new encryption algorithm. When logging on to the platform, users are allowed to log on normally only after detecting a specific encryption dog and accurate physical verification. For more information, please visit our website at http://www.sdjkyqyb.com!