Definition sha_splitandpad_blocks (msg : Blist) : list Blist :=
  toBlocks (sha_splitandpad_inc msg).

Theorem HMAC_list_concat_sap_instantiated h (HH: forall x y, length x = c -> length y = b -> length (h x y) = c) iv (IV: length iv = c) (op ip : Blist) (IL: length ip = b) (OL: length op = b) (FOLD_hash_blocks_eq : forall (l : Blist) (ls : list Blist), length l = b -> Forall (fun x : list bool => length x = b) ls -> fold_left h (l :: ls) iv = hash_blocks_bits _ B h iv (l ++ concat ls)) : forall (k m : Blist), length k = b -> HMAC_List.HMAC c p h iv sha_splitandpad_blocks fpad op ip k m = (* Note use of sha_splitandpad_blocks and sha_splitandpad_inc' (= concat the blocks) *) HMAC_Concat.HMAC c p B h iv sha_splitandpad_inc fpad op ip k m.