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Today, the editor will share with you the relevant knowledge points about how to hide and encrypt passwords in Python. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article.

Preface

There are several Python modules to hide passwords entered by users, one of which is the * * maskpass () module. In Python, with the help of the maskpass () module and the base64 () * * module, we can use the asterisk (*) to hide the user's password when typing, and then use the base64 () module to encrypt it.

Maskpass ()

Maskpass () is a Python module that can be used to hide the user's password during input. The maskpass () module also provides a secure way to handle password prompts that programs interact with users through the terminal.

Installation:

Use pip to install maskpass from a command prompt.

Pip install maskpass

These modules have two types of functions / methods:

Askpass ()

Advpass ()

Askpass ():

Askpass uses the standard library to get non-blocking input and return the password.

Import maskpasspwd = maskpass.askpass ()

The above code execution returns the password entered in a string format. The askpass () method has two optional parameters, "prompt" and "mask". The default value for the prompt is "enter password:" and the default value for the mask is an asterisk (*).

Note: if you want to mask your password with a string, number, or symbol, simply pass the value in the mask. For example, if you want to mask your password with a pound sign (#) and then pass the pound sign, that is, mask= "#" in the mask, now when the user enters the password, the password will be hidden with the pound sign (#).

Example 1: the user's password is not echoed in the prompt

# Unechoed user password import maskpass # Hidden password # masked password pwd = maskpass.askpass (mask= "") print (pwd)

Output:

F:\ files > python password.py

Enter Password:

Haiyong

In the above example, the user's password is not echoed at the prompt when entering the password, because the value assigned in the mask is empty, that is, the mask = "" (no spaces), so the password is hidden without any strings or symbols.

Example 2: echo the user's password at the prompt

# Echo password and mask import maskpass # importing maskpass library# prompt msg = Password and# with pound sign (#) screen password pwd = maskpass.askpass (prompt= "Password:", mask= "#") print (pwd)

Output:

F:\ files > python password.py

Password:#

Haiyong

In the above example, the user's password is echoed at the prompt when entering the password, because the value assigned in the mask is hashtag (#), or mask= "#", so when the user enters the password, it is hidden by the pound sign (#).

Advpass ():

Advpass uses pynput to get the text and return the password. Advpass can be used in both the console and Spyder.

Import maskpasspwd = maskpass.advpass ()

The above code execution also returns the entered password in a string format. The advpass () method has four optional parameters, which are 'prompt',' mask', 'ide', and' suppress'.

The default value of the prompt here is also "enter password:"

The default value for the mask is an asterisk (*).

Here ide requires a Boolean value, that is, the default value for true or false,ide is False. There is no need to change the value of ide because it automatically checks whether it is running on IDE or on a terminal.

Suppress also requires a Boolean value, either true or false, which is used only in Spyder IDE. Setting this to True prevents input from being passed to the rest of the system. This prevents the Spyder console from jumping when pressing the spacebar. The default value for suppression is True.

The advpass () method has a display function that toggles the visibility of the user's password input when the Left-Ctrl key is pressed. Press Left-Ctrl again to mask / hide the password. Note: this only applies to advpass () and requires pynput.

Example 1: do not press the left ctrl key when entering the password

# enter the password without using the left CTRL key import maskpass # importing maskpass library# screen password pwd = maskpass.advpass () print ('Password:', pwd)

Output:

F:\ files > python password.py

Enter Password: *

Password: haiyong

In the above output, the password is hidden with an asterisk (*) symbol because the user did not press the left ctrl key on the keyboard.

Example 2: press the left ctrl key while entering the password:

# enter the password without using the left CTRL key import maskpass # importing maskpass librarypwd = maskpass.advpass () # masking the passwordprint ('Password:', pwd)

Output:

F:\ files > python password.py

Enter Password: haiyong

Password: haiyong

In the above output, the password is not hidden because the user pressed the left ctrl key on the keyboard.

Base64 ()

Both the base64 encoding and decoding functions require a byte-like object. To convert a string to bytes, we must encode the string using Python's built-in encoding function. You can mainly use UTF-8 encoding, you can also use 'ASCII' for encoding, but I recommend using UTF-8 encoding.

# encoding the stringstring = "haiyong" # encoding string with utf-8b = string.encode ("UTF-8") print (b)

Output:

F:\ files > python strencode.py

Baked greeksforgreek`

Here the b prefix indicates that the value is a byte object.

Use the base64 () module to encode the string:

To encode a string, converting the string to bytecode, use the following method:

Base64.b64encode ('string'.encode ("utf-8"))

Use the base64 () module to decode the bytecode:

To decode the bytecode, which converts the bytecode to a string again, use the following method:

Base64.b64decode ('byte-code') .decode ("utf-8")

Example:

# Import base64 module import base64string = "haiyong" # Encoding string encode = base64.b64encode (string.encode ("utf-8")) print ("str-byte:", encode) # Decode string decode = base64.b64decode (encode) .decode ("utf-8") print ("byte-str:", decode)

Output:

F:\ files > python base64.py

Str-byte: baked R3JlZWtzZm9yR3JlZWtz'

Byte-str: haiyong

In the above example, the "haiyong" string is first encoded using the base64 module, that is, the string is converted to bytecode, and then, with the help of the base64 module, the bytecode is decoded again to its original string, "haiyong".

Hide user password during input time # use maskpass () to hide the entered password and encrypt it with base64 () import maskpass # to hide the passwordimport base64 # to encode and decode the password# Dictionary dict = {'Rahul': breadcmFodWare' with username as key and password Def createpwd (): print ("\ n=Create Account=") name = input ("Username:") # use the prompt msg 'Password:' mask password pwd = maskpass.askpass ("Password:") # to encode the entered password Encpwd = base64.b64encode (pwd.encode ("utf-8")) # append username and password to dict dict [name] = encpwd # print (dict) # login function def sign_in (): print ("\ n\ n=Login Page=") name = input ("Username:") # use the prompt msg 'Password:' to mask the password Pwd = maskpass.askpass ("Password:") # Encoding the entered password encpwd = base64.b64encode (pwd.encode ("utf-8")) # get the password password = dict [name] if (encpwd = = password): print ("Successfully logged in.") using the user name as the key in dict Else: print ("Login Failed") # call function createpwd () sign_in ()

Output:

F:\ files > python "userLogin.py"

= Create Account=

Username: haiyong

Password: *

= Login Page=

Username: haiyong

Password: *

Successfully logged in.

These are all the contents of the article "how to hide and encrypt passwords in Python". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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