Master AES Mix Column Transformation with Step-by-Step Example 🔐

How to Solve AES Mix Column Transformation | Mix Column Transformation in AES | Solved Example | AES Mix Column matrix multiplication | AES mix column solved example

In this video, I have explained introduction of AES. Then explained AES mix column transformation function. Also solve the example of AES mix column transformation. Complete solution of AES mix column transformation (Example from William Stallings book) is in this video. Watch carefully.

Introduction of AES:
AES uses 128 bits of plain text. AES consists of multiple rounds of processing different key bits like,
128 bits key – perform 10 rounds of encryption
192 bits key – perform 12 rounds of encryption.
256 bits key – perform 14 rounds of encryption.

For encryption, each round consists of the following four steps: Sub Bytes,
Shift Rows, Mix Columns, Add Round Key.
Above steps also called AES transformation function.

AES Mix Column Transformation Function:
Third transformation function of AES is called as Mix Columns, operates on each column individually. Each byte of a column is mapped into a new value that is a function of all four bytes in that column. Here in this function State Array is Output of Shift Rows function.

0:00 Introduction
0:17 Outline
0:39 Introdcution of AES
2:02 Explain Mix Column transformation function
3:42 Solution of Mix Column example (Complete Solution)

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Block Cipher and Stream Cipher:
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Confusion & Diffusion (Frustrated Statistical Analysis or Claud Shannon Properties):
https://youtu.be/PJrW6ZqQipo

Feistel Cipher Structure (to understand DES):
https://youtu.be/emJ0p6h48u4

Data Encryption Standard (DES) Algorithm:
https://youtu.be/cVhlCzmb-v0

DES Example using Animation:
https://youtu.be/3YBwhWuXZ0o

Strength & Weakness of DES, Avalanche effect in DES:
https://youtu.be/Xy1hver_aaw

Advanced Encryption Standard (AES) Algorithm with structure:
https://youtu.be/X8whYEWoDSI

AES Example using Animation:
https://youtu.be/ZPLEtxxjCYA

Key expansion in AES:
https://youtu.be/14SAn4IEAHk

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