anchor.diff:  sign_verify(Config) when is_list(Config) ->
       SignVerify = proplists:get_value(sign_verify, Config),
       lists:foreach(fun do_sign_verify/1, SignVerify).
  +
  +%%--------------------------------------------------------------------
  +no_sign_verify() ->
  +    [{doc, "Test disabled sign/verify digital signatures"}].
  +no_sign_verify(Config) when is_list(Config) ->
  +    [SignVerifyHd|_] = proplists:get_value(sign_verify, Config),
  +    notsup(fun do_sign_verify/1, [SignVerifyHd]).
   
   %%-------------------------------------------------------------------- 
   public_encrypt() ->
  
positive.code:                  {group, no_blowfish_cfb64},
                   {group, no_blowfish_ofb64},
                   {group, aes_cbc128},
                   {group, aes_cfb8},
                   {group, aes_cfb128},
                   {group, aes_cbc256},
                   {group, no_aes_ige256},
                   {group, no_rc2_cbc},
  
negative.code:                  {group, rsa},
                   {group, dss},
                   {group, ecdsa},
                   {group, no_ed25519},
                   {group, no_ed448},
                   {group, dh},
                   {group, ecdh},
                   {group, no_srp},
  