Variably Modified Permutation Composition: Difference between revisions

Revision as of 04:37, 22 March 2016

Revision as of 04:59, 22 March 2016

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Repeat steps 3-6 L times:

s = P[ (s + P[n]) mod 256 ]

Output = P[ (P[P[s]]+1) mod 256 ]

Swap(P[n], P[s]) # Temp = P[n]; P[n] = P[s]; P[s] = Temp

n = (n + 1) mod 256

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Where 256-element permutation {{mono|P}} and integer value {{mono|s}} are obtained from the encryption password using the VMPC-KSA (Key Scheduling Algorithm).

==References==