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AVALANCHE EFFECT IN THE FAMILY OF BLOCK CIPHERS “SD-(n,k)” - page 15 / 29

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Avalanche effect in encryption

Results for “SD16-(20, k)”:

Flipping one bit in plaintext cause already for k=1 50% different bits in ciphertext

Standard deviation is stabilized around 5,6 for k=2

Flipping one bit in key cause dropping of different bits in ciphertext from 50,15% for k=1 to 50,05% for k=10

Standard deviation is stabilized around 5,6 for k=2

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