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How to use Python to crack the wifi password, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Python is really omnipotent, the reason is that Python has a large number of libraries, countless off-the-shelf wheels, so that you do a lot of applications are very convenient. Wifi is closely related to our lives and is everywhere. Today, from the principle of WiFi connection, combined with the code, we will give you a detailed Python learning tutorial on Python deciphering wifi passwords!

01. How to connect to wifi

First of all, how does our computer connect to wifi? Take our laptops, for example, our laptops have wireless network cards, as shown in the following figure:

When we connect to the WiFi, the wireless card will automatically help us scan the nearby WiFi signal and return some information about the WiFi signal, including the name of the network (SSID), the strength of the signal, the way of encryption and authentication, and so on. This information is not visible to us during the operation. When we want to connect to a specified WiFi, we all need to authenticate. The function of authentication is to protect the access of the wifi. Note that the authentication here is not the password we entered, but the way to encrypt the password we entered.

That is, we will enter the amount of WiFi password, a way of encrypted transmission. The commonly used way is WPA or WPA2PSK, mainly for personal or home networks, etc., and the security requirements are not very high. This is shown in the following figure.

When we enter the password, a prompt will pop up to tell us some information, which is actually specifying the way of authentication encryption. After we click "Yes", we can happily surf the Internet.

02. Analog access using pywifi

Pywifi is a third-party library that needs to be installed with pip in advance, and then we use the pywifi module to simulate this process. The first is to determine whether the computer is in the state of WiFi connection, the code is shown in the following figure.

The first step is to create an object of pywifi, and then assign the information of the computer wireless network card to ifaces. Then determine the status of the ifaces (states) to know whether the computer is connected to the wireless network.

We mentioned above that the wireless network card will return the wireless signal information, and then we will output the nearby wireless signals we scanned and their information.

As shown on the left side of the figure above, we output the name of the wireless signal and its corresponding encryption. The data in the second code is actually a configuration file. The configuration file here can be understood as a file that stores the wireless signal information we are connected to, which contains the wireless signal name, password, authentication method and other information.

03. Crack the wifi password

Next, we will use pywifi to crack the WiFi password. We imitate the process of manually entering passwords and verify them. If the passwords are wrong, we keep on experimenting with slippery passwords until successful. The code for the section is as follows:

In the program, we first read the name of the WiFi we want to crack from console, then from our pre-set WiFi password book, keep reading the WiFi password, and then configure the profile information, including the name of WiFi, authentication method and WiFi password. If the password is incorrect, change the WiFi password and continue to validate until the authentication is correct. The following picture shows the results of the experiment.

The above cracking methods, also known as brute force cracking, are very time-consuming and may not be correct. But this is a trial process, and it is impossible to say if it succeeds.

Of course, this kind of brute force cracking requires a database sample, such as hundreds of thousands of samples. In this way, with plenty of time, you can try. This article is only from a technical point of view to explain how to use python to play WiFi, to learn Py wifi this library! It is not recommended that you do any destructive operation or any improper behavior.

After reading the above, do you know how to crack the wifi password with Python? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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