AES: How to Design Secure Encryption (Spanning Tree) (piped.video)

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In 1997, a contest began to develop a new encryption algorithm to become the Advanced Encryption Standard. After years of debate, one algorithm was chosen as the AES. But how does AES work? And what makes for a secure encryption algorithm?

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0:00 The Contest
1:02 Encryption
3:57 Confusion and Diffusion
5:44 Block Cipher
6:55 KeyExpansion
7:34 AddRoundKey
8:14 Substitution Cipher
8:55 SubBytes
11:30 MixColumns
12:53 ShiftRows
13:21 The Algorithm

Aug 22, 2023

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Encryption

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In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information.

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