From 04386f399ffa5b73911aa20442f099dd1e197e8c Mon Sep 17 00:00:00 2001 From: Raimo Niskanen Date: Thu, 9 Nov 2017 16:47:13 +0100 Subject: Facilitate test certs with common root --- lib/public_key/doc/src/public_key.xml | 112 +++++++++++++++++++++---- lib/public_key/src/pubkey_cert.erl | 152 +++++++++++++++++++++++----------- lib/public_key/src/public_key.erl | 27 ++++-- 3 files changed, 223 insertions(+), 68 deletions(-) (limited to 'lib/public_key') diff --git a/lib/public_key/doc/src/public_key.xml b/lib/public_key/doc/src/public_key.xml index 5230cef496..dea35bc390 100644 --- a/lib/public_key/doc/src/public_key.xml +++ b/lib/public_key/doc/src/public_key.xml @@ -774,6 +774,7 @@ fun(#'DistributionPoint'{}, #'CertificateList'{}, pkix_test_data(Options) -> Config + pkix_test_data([chain_opts()]) -> [conf_opt()] Creates certificate test data. Options = #{chain_type() := chain_opts()} @@ -781,30 +782,83 @@ fun(#'DistributionPoint'{}, #'CertificateList'{}, chain_type() = server_chain | client_chain - chain_opts() = #{chain_end() := [cert_opt()], - intermediates => [[cert_opt()]]} - A valid chain must have at least a ROOT and a peer cert - - chain_end() = root | peer - + chain_opts() = #{root := [cert_opt()] | root_cert(), + peer := [cert_opt()], + intermediates => [[cert_opt()]]} + + A valid chain must have at least a ROOT and a peer cert. + The root cert can be given either as a cert pre-generated by + + pkix_test_root_cert/2 + , or as root cert generation options. + + root_cert() = #{cert := der_encoded(), key := Key} + + A root certificate generated by + + pkix_test_root_cert/2 + . + cert_opt() = {Key, Value} For available options see cert_opt() below. Config = #{server_config := [conf_opt()], client_config := [conf_opt()]} - conf_opt() = {cert, der_encoded()} | {key, der_encoded()} |{cacerts, [der_encoded()]} - This is a subset of the type ssl:ssl_option() + conf_opt() = {cert, der_encoded()} | {key, PrivateKey} |{cacerts, [der_encoded()]} + + This is a subset of the type + ssl:ssl_option(). + PrivateKey is what + generate_key/1 + returns. + -

Creates certificate test data to facilitate automated testing - of applications using X509-certificates often through - SSL/TLS. The test data can be used when you have control - over both the client and the server in a test scenario. +

+ Creates certificate configuration(s) consisting of certificate + and its private key plus CA certificate bundle, for a client + and a server, intended to facilitate automated testing + of applications using X509-certificates, + often through SSL/TLS. The test data can be used + when you have control over both the client and the server + in a test scenario. +

+

+ When this function is called with a map containing + client and server chain specifications; + it generates both a client and a server certificate chain + where the cacerts + returned for the server contains the root cert the server + should trust and the intermediate certificates the server + should present to connecting clients. + The root cert the server should trust is the one used + as root of the client certificate chain. + Vice versa applies to the cacerts returned for the client. + The root cert(s) can either be pre-generated with + + pkix_test_root_cert/2 + , or if options are specified; it is (they are) + generated. +

+

+ When this function is called with a list of certificate options; + it generates a configuration with just one node certificate + where cacerts contains the root cert + and the intermediate certs that should be presented to a peer. + In this case the same root cert must be used for all peers. + This is useful in for example an Erlang distributed cluster + where any node, towards another node, acts either + as a server or as a client depending on who connects to whom. + The generated certificate contains a subject altname, + which is not needed in a client certificate, + but makes the certificate useful for both roles. +

+

+ The cert_opt() + type consists of the following options:

- -

The cert_opt() type consists of the following options:

{digest, digest_type()}

Hash algorithm to be used for @@ -851,6 +905,36 @@ fun(#'DistributionPoint'{}, #'CertificateList'{}, + + pkix_test_root_cert(Name, Options) -> RootCert + Generates a test data root cert. + + Name = string() + The root certificate name. + Options = [cert_opt()] + + For available options see + cert_opt() + under + pkix_test_data/1. + + RootCert = #{cert := der_encoded(), key := Key} + + A root certificate and key. The Key is generated by + generate_key/1. + + + +

+ Generates a root certificate that can be used + in multiple calls to + pkix_test_data/1 + when you want the same root certificate for + several generated certificates. +

+ + + pkix_verify(Cert, Key) -> boolean() Verifies PKIX x.509 certificate signature. diff --git a/lib/public_key/src/pubkey_cert.erl b/lib/public_key/src/pubkey_cert.erl index 76fd0f8133..c433a96585 100644 --- a/lib/public_key/src/pubkey_cert.erl +++ b/lib/public_key/src/pubkey_cert.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2008-2016. All Rights Reserved. +%% Copyright Ericsson AB 2008-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -33,11 +33,12 @@ is_fixed_dh_cert/1, verify_data/1, verify_fun/4, select_extension/2, match_name/3, extensions_list/1, cert_auth_key_id/1, time_str_2_gregorian_sec/1, - gen_test_certs/1]). + gen_test_certs/1, root_cert/2]). -define(NULL, 0). --export_type([chain_opts/0, test_config/0]). +-export_type([cert_opt/0, chain_opts/0, conf_opt/0, + test_config/0, test_root_cert/0]). -type cert_opt() :: {digest, public_key:digest_type()} | {key, public_key:key_params() | public_key:private_key()} | @@ -46,9 +47,12 @@ -type chain_end() :: root | peer. -type chain_opts() :: #{chain_end() := [cert_opt()], intermediates => [[cert_opt()]]}. -type conf_opt() :: {cert, public_key:der_encoded()} | - {key, public_key:der_encoded()} | + {key, public_key:private_key()} | {cacerts, [public_key:der_encoded()]}. --type test_config() :: #{server_config := [conf_opt()], client_config := [conf_opt()]}. +-type test_config() :: + #{server_config := [conf_opt()], client_config := [conf_opt()]}. +-type test_root_cert() :: + #{cert := binary(), key := public_key:private_key()}. %%==================================================================== %% Internal application APIu %%==================================================================== @@ -430,31 +434,94 @@ match_name(Fun, Name, PermittedName, [Head | Tail]) -> false -> match_name(Fun, Name, Head, Tail) end. + %%% --spec gen_test_certs(#{server_chain:= chain_opts(), client_chain:= chain_opts()}) -> test_config(). - -%% Generates server and and client configuration for testing +-spec gen_test_certs(#{server_chain:= chain_opts(), + client_chain:= chain_opts()} | + chain_opts()) -> + test_config() | + [conf_opt()]. +%% +%% Generates server and and client configuration for testing %% purposes. All certificate options have default values -gen_test_certs(#{client_chain := #{root := ClientRootConf, - intermediates := ClientCAs, - peer := ClientPeer}, - server_chain := - #{root := ServerRootConf, - intermediates := ServerCAs, - peer := ServerPeer}}) -> - SRootKey = gen_key(proplists:get_value(key, ServerRootConf, default_key_gen())), - CRootKey = gen_key(proplists:get_value(key, ClientRootConf, default_key_gen())), - ServerRoot = root_cert("server", SRootKey, ClientRootConf), - ClientRoot = root_cert("client", CRootKey, ServerRootConf), - - [{ServerDERCert, ServerDERKey} | ServerCAsKeys] = config(server, ServerRoot, - SRootKey, lists:reverse([ServerPeer | lists:reverse(ServerCAs)])), - [{ClientDERCert, ClientDERKey} | ClientCAsKeys] = config(client, ClientRoot, - CRootKey, lists:reverse([ClientPeer | lists:reverse(ClientCAs)])), - ServerDERCA = ca_config(ClientRoot, ServerCAsKeys), - ClientDERCA = ca_config(ServerRoot, ClientCAsKeys), - #{server_config => [{cert, ServerDERCert}, {key, ServerDERKey}, {cacerts, ServerDERCA}], - client_config => [{cert, ClientDERCert}, {key, ClientDERKey}, {cacerts, ClientDERCA}]}. +gen_test_certs( + #{client_chain := + #{root := ClientRoot, + intermediates := ClientCAs, + peer := ClientPeer}, + server_chain := + #{root := ServerRoot, + intermediates := ServerCAs, + peer := ServerPeer}}) -> + #{cert := ServerRootCert, key := ServerRootKey} = + case ServerRoot of + #{} -> + ServerRoot; + ServerRootConf when is_list(ServerRootConf) -> + root_cert("SERVER ROOT CA", ServerRootConf) + end, + #{cert := ClientRootCert, key := ClientRootKey} = + case ClientRoot of + #{} -> + ClientRoot; + ClientRootConf when is_list(ClientRootConf) -> + root_cert("CLIENT ROOT CA", ClientRootConf) + end, + [{ServerDERCert, ServerDERKey} | ServerCAsKeys] = + config( + server, ServerRootCert, ServerRootKey, + lists:reverse([ServerPeer | lists:reverse(ServerCAs)])), + [{ClientDERCert, ClientDERKey} | ClientCAsKeys] = + config( + client, ClientRootCert, ClientRootKey, + lists:reverse([ClientPeer | lists:reverse(ClientCAs)])), + ServerDERCA = ca_config(ClientRootCert, ServerCAsKeys), + ClientDERCA = ca_config(ServerRootCert, ClientCAsKeys), + #{server_config => + [{cert, ServerDERCert}, {key, ServerDERKey}, + {cacerts, ServerDERCA}], + client_config => + [{cert, ClientDERCert}, {key, ClientDERKey}, + {cacerts, ClientDERCA}]}; +%% +%% Generates a node configuration for testing purposes, +%% when using the node server cert also for the client. +%% All certificate options have default values +gen_test_certs( + #{root := Root, intermediates := CAs, peer := Peer}) -> + #{cert := RootCert, key := RootKey} = + case Root of + #{} -> + Root; + RootConf when is_list(RootConf) -> + root_cert("SERVER ROOT CA", RootConf) + end, + [{DERCert, DERKey} | CAsKeys] = + config( + server, RootCert, RootKey, + lists:reverse([Peer | lists:reverse(CAs)])), + DERCAs = ca_config(RootCert, CAsKeys), + [{cert, DERCert}, {key, DERKey}, {cacerts, DERCAs}]. + +%%% +-spec root_cert(string(), [cert_opt()]) -> test_root_cert(). +%% +%% Generate a self-signed root cert +root_cert(Name, Opts) -> + PrivKey = gen_key(proplists:get_value(key, Opts, default_key_gen())), + TBS = cert_template(), + Issuer = subject("root", Name), + OTPTBS = + TBS#'OTPTBSCertificate'{ + signature = sign_algorithm(PrivKey, Opts), + issuer = Issuer, + validity = validity(Opts), + subject = Issuer, + subjectPublicKeyInfo = public_key(PrivKey), + extensions = extensions(undefined, ca, Opts) + }, + #{cert => public_key:pkix_sign(OTPTBS, PrivKey), + key => PrivKey}. %%-------------------------------------------------------------------- %%% Internal functions @@ -1103,7 +1170,7 @@ missing_basic_constraints(OtpCert, SelfSigned, ValidationState, VerifyFun, UserS UserState} end. - gen_key(KeyGen) -> +gen_key(KeyGen) -> case is_key(KeyGen) of true -> KeyGen; @@ -1120,28 +1187,14 @@ is_key(#'ECPrivateKey'{}) -> is_key(_) -> false. -root_cert(Role, PrivKey, Opts) -> - TBS = cert_template(), - Issuer = issuer("root", Role, " ROOT CA"), - OTPTBS = TBS#'OTPTBSCertificate'{ - signature = sign_algorithm(PrivKey, Opts), - issuer = Issuer, - validity = validity(Opts), - subject = Issuer, - subjectPublicKeyInfo = public_key(PrivKey), - extensions = extensions(Role, ca, Opts) - }, - public_key:pkix_sign(OTPTBS, PrivKey). cert_template() -> #'OTPTBSCertificate'{ version = v3, - serialNumber = trunc(rand:uniform()*100000000)*10000 + 1, + serialNumber = erlang:unique_integer([positive, monotonic]), issuerUniqueID = asn1_NOVALUE, subjectUniqueID = asn1_NOVALUE }. -issuer(Contact, Role, Name) -> - subject(Contact, Role ++ Name). subject(Contact, Name) -> Opts = [{email, Contact ++ "@example.org"}, @@ -1176,9 +1229,11 @@ validity(Opts) -> DefFrom0 = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())-1), DefTo0 = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())+7), {DefFrom, DefTo} = proplists:get_value(validity, Opts, {DefFrom0, DefTo0}), - Format = fun({Y,M,D}) -> - lists:flatten(io_lib:format("~w~2..0w~2..0w000000Z",[Y,M,D])) - end, + Format = + fun({Y,M,D}) -> + lists:flatten( + io_lib:format("~4..0w~2..0w~2..0w000000Z",[Y,M,D])) + end, #'Validity'{notBefore={generalTime, Format(DefFrom)}, notAfter ={generalTime, Format(DefTo)}}. @@ -1240,7 +1295,6 @@ cert(Role, #'OTPCertificate'{tbsCertificate = #'OTPTBSCertificate'{subject = Iss subject = subject(Contact, atom_to_list(Role) ++ Name), subjectPublicKeyInfo = public_key(Key), extensions = extensions(Role, Type, Opts) - }, public_key:pkix_sign(OTPTBS, PrivKey). @@ -1297,7 +1351,7 @@ add_default_extensions(server, peer, Exts) -> ], add_default_extensions(Default, Exts); -add_default_extensions(_, peer, Exts) -> +add_default_extensions(client, peer, Exts) -> Exts. add_default_extensions(Defaults0, Exts) -> diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index 6788c1ee92..034126655c 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -59,7 +59,8 @@ pkix_crl_verify/2, pkix_crl_issuer/1, short_name_hash/1, - pkix_test_data/1 + pkix_test_data/1, + pkix_test_root_cert/2 ]). -export_type([public_key/0, private_key/0, pem_entry/0, @@ -1033,10 +1034,12 @@ short_name_hash({rdnSequence, _Attributes} = Name) -> %%-------------------------------------------------------------------- --spec pkix_test_data(#{chain_type() := pubkey_cert:chain_opts()}) -> - pubkey_cert:test_config(). +-spec pkix_test_data(#{chain_type() := pubkey_cert:chain_opts()} | + pubkey_cert:chain_opts()) -> + pubkey_cert:test_config() | + [pubkey_cert:conf_opt()]. -%% Description: Generates OpenSSL-style hash of a name. +%% Description: Generates cert(s) and ssl configuration %%-------------------------------------------------------------------- pkix_test_data(#{client_chain := ClientChain0, @@ -1045,7 +1048,21 @@ pkix_test_data(#{client_chain := ClientChain0, ClientChain = maps:merge(Default, ClientChain0), ServerChain = maps:merge(Default, ServerChain0), pubkey_cert:gen_test_certs(#{client_chain => ClientChain, - server_chain => ServerChain}). + server_chain => ServerChain}); +pkix_test_data(#{} = Chain) -> + Default = #{intermediates => []}, + 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(). + +%% Description: Generates a root cert suitable for pkix_test_data/1 +%%-------------------------------------------------------------------- + +pkix_test_root_cert(Name, Opts) -> + pubkey_cert:root_cert(Name, Opts). %%-------------------------------------------------------------------- %%% Internal functions -- cgit v1.2.3