Yyds dry goods inventory software encryption lock function

Encryption lock , Also known as dongle , Commercial software is used more , Simply put, you buy a commercial software , Equipped with an encryption lock , When you need to use commercial software , You need to insert an encryption lock on the computer , Can be used . therefore , Encryption locks are used by software developers to protect software from arbitrary copying .

that , What are the functions of the current encryption lock ？

1. Software encryption

Encryption lock suppliers sell encryption locks to software developers , Will come with software encryption , An encryption tool is usually provided , Encrypt and protect the programs developed by developers , The main function is to prevent decompiled code . For example, think about the elite of Shudun 5 Encryption lock , The manufacturer provides a virtual machine shell , The compiled program can be directly shelled , High security .

2. Time limit 、 Time limit 、 Limited to functional modules, etc

Cooperate with the software sales model of software developers , The encryption lock can be used for a limited time 、 Time limit 、 Limited to module sales . Subscription sales mode is a common sales mode of many software at present , Use encryption lock to realize subscription sales of software , It's more convenient , Software developers can avoid developing time limited functions , Directly use the time limit function of encryption lock . It can also be used to close out , Early time limit , If the balance payment is not paid at maturity, the later use permission will not be opened .

3. Identity Authentication

in the light of BS The program of Architecture , When you log on to the website , You must insert an encryption lock to access , This is the function of identity authentication .

More functions of encryption lock , Comments are welcome to discuss .