In mathematics, permutation relates to the act of arranging all the members of a set into some sequence or order. Permutation may also refer to: An alteration or transformation of a previous object or concept; see iteration Permutation, as a mathematical concept Permutation test in statistics Permutation (Cryptography), a series of linked mathematical operations used in block cipher algorithms such as AES. Permutation box, a cryptography method of bit shuffling used to permute or transpose bits across S-boxes. Permutation (music), as a concept related to musical set theory Permutation (Amon Tobin album), 1998 Permutation (Bill Laswell album), 1999 "Permutation" (song), an instrumental song by the Red Hot Chili Peppers