diff options
Diffstat (limited to 'lib/public_key/src/public_key.erl')
| -rw-r--r-- | lib/public_key/src/public_key.erl | 127 |
1 files changed, 61 insertions, 66 deletions
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index f9b992afd3..68bf04eeff 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -109,7 +109,8 @@ pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry, %%-------------------------------------------------------------------- -spec pem_entry_encode(pki_asn1_type(), term()) -> pem_entry(). -spec pem_entry_encode(pki_asn1_type(), term(), - {{Cipher :: string(), Salt :: binary()}, string()}) -> pem_entry(). + {{Cipher :: string(), Salt :: binary()}, string()}) -> + pem_entry(). % %% Description: Creates a pem entry that can be feed to pem_encode/1. %%-------------------------------------------------------------------- @@ -440,17 +441,25 @@ pkix_normalize_name(Issuer) -> CertChain :: [der_encoded()] , Options :: list()) -> {ok, {PublicKeyInfo :: term(), - PolicyTree :: term(), - [{bad_cert, Reason :: term()}]}} | + PolicyTree :: term()}} | {error, {bad_cert, Reason :: term()}}. %% Description: Performs a basic path validation according to RFC 5280. %%-------------------------------------------------------------------- -pkix_path_validation(unknown_ca, [Cert | Chain], Options) -> - case proplists:get_value(verify, Options, true) of - true -> - {error, {bad_cert, unknown_ca}}; - false -> - pkix_path_validation(Cert, Chain, [{acc_errors, [{bad_cert, unknown_ca}]}]) +pkix_path_validation(unknown_ca, [Cert | Chain], Options0) -> + {VerifyFun, Userstat0} = + proplists:get_value(verify_fun, Options0, ?DEFAULT_VERIFYFUN), + Otpcert = pkix_decode_cert(Cert, otp), + Reason = {bad_cert, unknown_ca}, + try VerifyFun(Otpcert, Reason, Userstat0) of + {valid, Userstate} -> + Options = proplists:delete(verify_fun, Options0), + pkix_path_validation(Otpcert, Chain, [{verify_fun, + {VerifyFun, Userstate}}| Options]); + {fail, _} -> + {error, Reason} + catch + _:_ -> + {error, Reason} end; pkix_path_validation(TrustedCert, CertChain, Options) when is_binary(TrustedCert) -> OtpCert = pkix_decode_cert(TrustedCert, @@ -462,12 +471,7 @@ pkix_path_validation(#'OTPCertificate'{} = TrustedCert, CertChain, Options) ValidationState = pubkey_cert:init_validation_state(TrustedCert, MaxPathDefault, Options), - Fun = proplists:get_value(validate_extensions_fun, Options, - fun(Extensions, State, _, AccError) -> - {Extensions, State, AccError} - end), - Verify = proplists:get_value(verify, Options, true), - path_validation(CertChain, ValidationState, Fun, Verify). + path_validation(CertChain, ValidationState). %%-------------------------------------------------------------------- %%% Internal functions @@ -490,38 +494,40 @@ path_validation([], #path_validation_state{working_public_key_algorithm PublicKey, working_public_key_parameters = PublicKeyParams, - valid_policy_tree = Tree, - acc_errors = AccErrors - }, _, _) -> - {ok, {{Algorithm, PublicKey, PublicKeyParams}, Tree, AccErrors}}; + valid_policy_tree = Tree + }) -> + {ok, {{Algorithm, PublicKey, PublicKeyParams}, Tree}}; path_validation([DerCert | Rest], ValidationState = #path_validation_state{ - max_path_length = Len}, - Fun, Verify) when Len >= 0 -> - try validate(DerCert, - ValidationState#path_validation_state{last_cert=Rest=:=[]}, - Fun, Verify) of + max_path_length = Len}) when Len >= 0 -> + try validate(DerCert, + ValidationState#path_validation_state{last_cert=Rest=:=[]}) of #path_validation_state{} = NewValidationState -> - path_validation(Rest, NewValidationState, Fun, Verify) + path_validation(Rest, NewValidationState) catch throw:Reason -> {error, Reason} end; -path_validation(_, _, _, true) -> - {error, {bad_cert, max_path_length_reached}}; +path_validation([DerCert | _] = Path, + #path_validation_state{user_state = UserState0, + verify_fun = VerifyFun} = + ValidationState) -> + Reason = {bad_cert, max_path_length_reached}, + OtpCert = pkix_decode_cert(DerCert, otp), + try VerifyFun(OtpCert, Reason, UserState0) of + {valid, UserState} -> + path_validation(Path, + ValidationState#path_validation_state{ + max_path_length = 0, + user_state = UserState}); + {fail, _} -> + {error, Reason} + catch + _:_ -> + {error, Reason} + end. -path_validation(_, #path_validation_state{working_public_key_algorithm - = Algorithm, - working_public_key = - PublicKey, - working_public_key_parameters - = PublicKeyParams, - valid_policy_tree = Tree, - acc_errors = AccErrors - }, _, false) -> - {ok, {{Algorithm, PublicKey, PublicKeyParams}, Tree, - [{bad_cert, max_path_length_reached}|AccErrors]}}. validate(DerCert, #path_validation_state{working_issuer_name = Issuer, working_public_key = Key, @@ -531,40 +537,29 @@ validate(DerCert, #path_validation_state{working_issuer_name = Issuer, excluded_subtrees = Exclude, last_cert = Last, user_state = UserState0, - acc_errors = AccErr0} = - ValidationState0, ValidateExtensionFun, Verify) -> + verify_fun = VerifyFun} = + ValidationState0) -> OtpCert = pkix_decode_cert(DerCert, otp), - %% All validate functions will throw {bad_cert, Reason} if they - %% fail and Verify = true if Verify = false errors - %% will be accumulated in the validationstate - AccErr1 = pubkey_cert:validate_time(OtpCert, AccErr0, Verify), - AccErr2 = pubkey_cert:validate_issuer(OtpCert, Issuer, AccErr1, Verify), + UserState1 = pubkey_cert:validate_time(OtpCert, UserState0, VerifyFun), + + UserState2 = pubkey_cert:validate_issuer(OtpCert, Issuer, UserState1, VerifyFun), - AccErr3 = pubkey_cert:validate_names(OtpCert, Permit, Exclude, Last, - AccErr2, Verify), - AccErr4 = - pubkey_cert:validate_revoked_status(OtpCert, Verify, AccErr3), + UserState3 = pubkey_cert:validate_names(OtpCert, Permit, Exclude, Last, + UserState2,VerifyFun), + + UserState4 = pubkey_cert:validate_revoked_status(OtpCert, UserState3, VerifyFun), - {ValidationState1, UnknownExtensions0, AccErr5} = - pubkey_cert:validate_extensions(OtpCert, ValidationState0, Verify, - AccErr4), - %% We want the key_usage extension to be checked before we validate + {ValidationState1, UserState5} = + pubkey_cert:validate_extensions(OtpCert, ValidationState0, UserState4, + VerifyFun), + + %% We want the key_usage extension to be checked before we validate %% the signature. - AccErr6 = - pubkey_cert:validate_signature(OtpCert, DerCert, Key, KeyParams, - AccErr5, Verify), - - {UnknownExtensions, UserState, AccErr7} = - ValidateExtensionFun(UnknownExtensions0, UserState0, Verify, AccErr6), - - %% Check that all critical extensions have been handled - AccErr = - pubkey_cert:validate_unknown_extensions(UnknownExtensions, AccErr7, - Verify), + UserState = pubkey_cert:validate_signature(OtpCert, DerCert, + Key, KeyParams, UserState5, VerifyFun), ValidationState = - ValidationState1#path_validation_state{user_state = UserState, - acc_errors = AccErr}, + ValidationState1#path_validation_state{user_state = UserState}, pubkey_cert:prepare_for_next_cert(OtpCert, ValidationState). sized_binary(Binary) when is_binary(Binary) -> |