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Understanding Confusion and Diffusion - Network Security
pC
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Confusion and Diffusion
How it is implemented in
DES
AES
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Q1.
Confusion
It is a technique of ensuring that a cipher text give no clue about original plain text.
They are achieved by the substitution technique.
Stream cipher relies only on confusion.
Diffusion
It increase the redundancy of the plain text by spreading it across rows and columns.
Block cipher used both confusion and diffusion.
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