SEARCH Articles Figures Tables A Construction from Pairs of Permutations Constructions from Claw-Intractable Pairs of Permutations Function families Cases of factoring and claw-intractable permutation pairs GMR family of permutation pairs Permutability Permutation Permutational Permute Permuted Strong claw-intractable family of permutation pairs Weak claw-intractable family of permutation pairs