Pseudorandom permutations – Block Ciphers and Their Modes of Operation

• Kevanna Brown
• 02/15/202208/31/2024
• 0

14.2.4 Pseudorandom permutations Simply put, a permutation is a function that rearranges the order of elements in a set. A random permutation is a permutation that is randomly chosen from all possible permutations for a given set. A pseudorandom permutation looks like a random permutation to any polynomial-time observer, but is actually a deterministic algorithm.…