15 naor m , reingold o . on the construction of pseudorandom permutations luby - rackoff revisited . journal of cryptology , 1999 , 12 : 29 - 66 . 16 naor m , reingold o . from unpredictability to indistinguishability : a simple construction of pseudo - random functions from macs Luby和rackoff是假定每个轮函数是随机的,不考虑轮函数的设计而本文仅假定camellia算法的非线性模块是随机的,降低假设条件,这样假定更接近算法本身的特性。