Questions tagged [diffusion]

Diffusion refers to the property of an encryption primitive that small changes in the plaintext result in big changes in the ciphertext and vice-versa.

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Effect of block size on diffusion rate

I've always been under the belief that larger block sizes require more rounds to achieve full diffusion. Rijndael, SPECK, and SIMON, for example, have a round multiplier based on the block size. The ...
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AES Diffusion at Block Level

AES provides diffusion at the block level by implementing the ShiftRows and MixColumn sublayers. The former permutes data on a byte level, wheres the latter combines blocks of four bytes. Can it ...
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Cryptographic Strength of MDS Matrix

Maximum Distance Separable (MDS) Matrices are used for providing diffusion in a cipher. How to test the strength (with respect to cryptographic properties) of an MDS matrix used in a cipher?
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How were the diffusion statistics for norx calculated?

I was reading the norx specification and came across this section, which provides some kind of statistics about the diffusion of the norx round function. However, I don't see how these values were ...