Tutorial Encoding and Decoding Base64 with Python on Linux

What Will I Learn?

• What is Python ?
• What is Base64 ?
• How to encode base64 with Python on Linux
• How to decode base64 with Python on Linux

Requirements

• You have a basic knowledge of Python
• Linux Operating System
• Command Line or Terminal
• Text Editor

Difficulty

• Intermediate

Tutorial Contents

- What is Python ?

Python is a multipurpose interpretative programming language. with a design philosophy that focuses on the legibility of the code. Python is claimed to be a language that combines capabilities, capabilities, with very clear code syntax, and comes with a large and comprehensive standard library functionality.

- What is Base64 ?

Base64 is a method used to encoding binary data so that it becomes "printable" or in short binary data is encoded into a 7-bit character format such as part of the email content.

Basically Base64 is a code composed by 64 characters, whose character (based on: RFC 1421) consists of (A-Z, a-z, 0-9, +, /) or "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 + /". But there is one additional character that is "=", whose function is to fulfill or term it as a filler pad.

• So you are not confused to learn about encode and decode base64 using python, let's follow my steps as follows:
• As we know to start python programming we have to go into python shell, To start we have to open Terminal. Follow my steps as below :

1. Open terminal (Ctrl + Alt + T)
2. Type python then you will go into sheel Python.

The author here uses linux times for the operating system and still uses python version 2.7 and last update in 2017.

• Once we get into the python shell, then the next step we start encoding and decoding base64 on python.

• And the author will do the encoding and decoding the writing as below :

encoding : "encodinganddecodingbase64dilinux" decoding : "ZW5jb2RpbmdkYW5kZWNvZGluZ2Jhc2U2NGRpbGludXg="

Encoding Base64

• To start the first step ie encoding then type the script or command like below :

     import base64
     encoding = base64.b64encode("encodinganddecodingbase64dilinux")

• Next type "encoding" to view encrypted secreted posts :

    encoding

• After we do "encode" in the words "encodinganddecodingbase64dilinux" then it becomes like = "ZW5jb2RpbmdkYW5kZWNvZGluZ2Jhc2U2NGRpbGludXg=".

Decoding Base64

• As we know, after we do the "encoding" we will definitely do the name "decoding" or the reversal of another word, that is to break the writing of a secret or crack the password that has been in "encode".

• To do "decoding" you do not need to open another "Terminal", you simply write the script or direct command under it. Follow my steps :

• Type the following command :

   decoding = base64.b64decode("ZW5jb2RpbmdkYW5kZWNvZGluZ2Jhc2U2NGRpbGludXg=")

• Next type "decoding" to see the posts that are encoded in secret :

   decoding 

After we do the decode then out the posts we have encode earlier that is: encodinganddecodingbase64dilinux

FULL SCRIPT OR SYNTAX

The author here uses kali linux for the operating system and still uses python version 2.7 and last update in 2017.

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