fact: Fixpoint PRF_DRBG_f_bad (v : D)(n : nat) := match n with | O => ret nil | S n' => r <-$ {0,1}^eta; ls' <-$ (PRF_DRBG_f_bad (injD r) n'); ret (v :: ls') end.
imports: FCF HasDups RndInList CompFold Permutation PRF