Cryptography Reference
In-Depth Information
Diagram 3.6 AES Encryption
Plaintext
↓
✞
✝
✆
Initial add Round Key
↓
R ound 1
✞
✝
✆
Bytesub
↓
✞
✝
✆
Shift rows
↓
✄
✂
✁
Mix columns
↓
✞
✝
✆
Add round key
↓ . . .
↓
Round Nr-1
✞
✝
✆
Bytesub
↓
✞
✝
✆
Shift rows
↓
✄
✂
✁
Mix columns
↓
✞
✝
✆
Add round key
↓
R ound Nr
✞
✝
✆
Bytesub
↓
✞
✝
✆
Shift rows
↓
✞
✝
✆
Add round key
↓
Ciphertext
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Codes: The Guide to Secrecy from Ancient to Modern Times
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