anchor.diff:      pubkey_cert:gen_test_certs(maps:merge(Default, Chain)).
   
   %%--------------------------------------------------------------------
  --spec pkix_test_root_cert(
  -        Name :: string(), Opts :: [pubkey_cert:cert_opt()]) ->
  -                                 pubkey_cert:test_root_cert().
  -
  +-spec pkix_test_root_cert(Name, Options) ->
  +                                 RootCert
  +                                     when Name :: string(),
  +                                          Options :: [{atom(),term()}], %[cert_opt()],
  +                                          RootCert :: pubkey_cert:test_root_cert().
   %% Description: Generates a root cert suitable for pkix_test_data/1
   %%--------------------------------------------------------------------
   
  
positive.code:     do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password).
      
  %%--------------------------------------------------------------------
  -spec der_decode(asn1_type(), Der::binary()) -> term().
  %%
  %% Description: Decodes a public key asn1 der encoded entity.
  %%--------------------------------------------------------------------
  
negative.code: 	PKCS8Key.
  
  %%--------------------------------------------------------------------
  -spec der_encode(Asn1Type, Entity) -> Der when Asn1Type :: asn1_type(),
                                                 Entity :: term(),
                                                 Der :: binary() .
  %%
  %% Description: Encodes a public key entity with asn1 DER encoding.
  %%--------------------------------------------------------------------
  