Скачать или смотреть How AES Encryption Works | Working, Rounds & Security

AES (Advanced Encryption Standard) is the backbone of modern digital security.
In this video, we explain AES encryption step by step, using a clear and beginner-friendly approach.

You will learn how AES transforms plaintext into secure ciphertext through multiple rounds of substitution, permutation, mixing, and key addition. This video also explains why AES replaced DES and why it is trusted worldwide.

🔐 Topics covered in this video:

What is AES (Advanced Encryption Standard)?
Why AES was needed
Symmetric key encryption explained
AES block size and key lengths
AES-128, AES-192, and AES-256 rounds
AES State matrix
AES encryption steps:
SubBytes
ShiftRows
MixColumns
AddRoundKey
AES key expansion
Why AES is secure
Real-world applications of AES

🎯 Who should watch this video?

Computer Science students
Cybersecurity beginners
Cryptography learners
Exam preparation (GATE, NET, university exams)

AES is trusted not because it is hidden, but because breaking it is practically impossible.

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