%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2017-2017. 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.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(engine_SUITE).
-include_lib("common_test/include/ct.hrl").
%% Note: This directive should only be used in test suites.
-compile(export_all).
%%--------------------------------------------------------------------
%% Common Test interface functions -----------------------------------
%%--------------------------------------------------------------------
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap,{seconds, 10}}
].
all() ->
[
get_all_possible_methods,
engine_load_all_methods,
engine_load_some_methods,
bad_arguments,
unknown_engine,
pre_command_fail_bad_value,
pre_command_fail_bad_key,
failed_engine_init,
{group, engine_stored_key}
].
groups() ->
[{engine_stored_key, [],
[sign_verify_rsa,
sign_verify_dsa,
sign_verify_ecdsa,
sign_verify_rsa_pwd,
priv_encrypt_pub_decrypt_rsa,
priv_encrypt_pub_decrypt_rsa_pwd,
pub_encrypt_priv_decrypt_rsa,
pub_encrypt_priv_decrypt_rsa_pwd
]}].
init_per_suite(Config) ->
try crypto:start() of
ok ->
Config;
{error,{already_started,crypto}} ->
Config
catch _:_ ->
{skip, "Crypto did not start"}
end.
end_per_suite(_Config) ->
ok.
%%--------------------------------------------------------------------
init_per_group(engine_stored_key, Config) ->
case load_storage_engine(Config) of
{ok, E} ->
KeyDir = key_dir(Config),
[{storage_engine,E}, {storage_dir,KeyDir} | Config];
{error, notexist} ->
{skip, "OTP Test engine not found"};
{error, notsup} ->
{skip, "Engine not supported on this OpenSSL version"};
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"};
Other ->
ct:log("Engine load failed: ~p",[Other]),
{fail, "Engine load failed"}
end;
init_per_group(_Group, Config0) ->
Config0.
end_per_group(engine_stored_key, Config) ->
case proplists:get_value(storage_engine, Config) of
undefined ->
ok;
E ->
ok = crypto:engine_unload(E)
end;
end_per_group(_, _) ->
ok.
%%--------------------------------------------------------------------
init_per_testcase(_Case, Config) ->
Config.
end_per_testcase(_Case, _Config) ->
ok.
%%-------------------------------------------------------------------------
%% Test cases starts here.
%%-------------------------------------------------------------------------
get_all_possible_methods() ->
[{doc, "Just fetch all possible engine methods supported."}].
get_all_possible_methods(Config) when is_list(Config) ->
try
List = crypto:engine_get_all_methods(),
ct:log("crypto:engine_get_all_methods() -> ~p\n", [List]),
ok
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end.
engine_load_all_methods()->
[{doc, "Use a dummy md5 engine that does not implement md5"
"but rather returns a static binary to test that crypto:engine_load "
"functions works."}].
engine_load_all_methods(Config) when is_list(Config) ->
case crypto:get_test_engine() of
{error, notexist} ->
{skip, "OTP Test engine not found"};
{ok, Engine} ->
try
Md5Hash1 = <<106,30,3,246,166,222,229,158,244,217,241,179,50,232,107,109>>,
Md5Hash1 = crypto:hash(md5, "Don't panic"),
Md5Hash2 = <<0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15>>,
case crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
{<<"ID">>, <<"MD5">>},
<<"LOAD">>],
[]) of
{ok, E} ->
case crypto:hash(md5, "Don't panic") of
Md5Hash1 ->
ct:fail(fail_to_load_still_original_engine);
Md5Hash2 ->
ok;
_ ->
ct:fail(fail_to_load_engine)
end,
ok = crypto:engine_unload(E),
case crypto:hash(md5, "Don't panic") of
Md5Hash2 ->
ct:fail(fail_to_unload_still_test_engine);
Md5Hash1 ->
ok;
_ ->
ct:fail(fail_to_unload_engine)
end;
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"}
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end
end.
engine_load_some_methods()->
[{doc, "Use a dummy md5 engine that does not implement md5"
"but rather returns a static binary to test that crypto:engine_load "
"functions works."}].
engine_load_some_methods(Config) when is_list(Config) ->
case crypto:get_test_engine() of
{error, notexist} ->
{skip, "OTP Test engine not found"};
{ok, Engine} ->
try
Md5Hash1 = <<106,30,3,246,166,222,229,158,244,217,241,179,50,232,107,109>>,
Md5Hash1 = crypto:hash(md5, "Don't panic"),
Md5Hash2 = <<0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15>>,
EngineMethods = crypto:engine_get_all_methods() --
[engine_method_dh,engine_method_rand,
engine_method_ciphers, engine_method_store,
engine_method_pkey_meths, engine_method_pkey_asn1_meths],
case crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
{<<"ID">>, <<"MD5">>},
<<"LOAD">>],
[],
EngineMethods) of
{ok, E} ->
case crypto:hash(md5, "Don't panic") of
Md5Hash1 ->
ct:fail(fail_to_load_engine_still_original);
Md5Hash2 ->
ok;
_ ->
ct:fail(fail_to_load_engine)
end,
ok = crypto:engine_unload(E),
case crypto:hash(md5, "Don't panic") of
Md5Hash2 ->
ct:fail(fail_to_unload_still_test_engine);
Md5Hash1 ->
ok;
_ ->
ct:fail(fail_to_unload_engine)
end;
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"}
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end
end.
%%-------------------------------------------------------------------------
%% Error cases
bad_arguments()->
[{doc, "Test different arguments in bad format."}].
bad_arguments(Config) when is_list(Config) ->
case crypto:get_test_engine() of
{error, notexist} ->
{skip, "OTP Test engine not found"};
{ok, Engine} ->
try
try
crypto:engine_load(fail_engine, [], [])
catch
error:badarg ->
ok
end,
try
crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
1,
{<<"ID">>, <<"MD5">>},
<<"LOAD">>],
[])
catch
error:badarg ->
ok
end,
try
crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
{'ID', <<"MD5">>},
<<"LOAD">>],
[])
catch
error:badarg ->
ok
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end
end.
unknown_engine() ->
[{doc, "Try to load a non existent engine."}].
unknown_engine(Config) when is_list(Config) ->
try
{error, bad_engine_id} = crypto:engine_load(<<"fail_engine">>, [], []),
ok
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end.
pre_command_fail_bad_value() ->
[{doc, "Test pre command due to bad value"}].
pre_command_fail_bad_value(Config) when is_list(Config) ->
DataDir = unicode:characters_to_binary(code:priv_dir(crypto)),
try
case crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>,
<<DataDir/binary, <<"/libfail_engine.so">>/binary >>},
{<<"ID">>, <<"MD5">>},
<<"LOAD">>],
[]) of
{error, ctrl_cmd_failed} ->
ok;
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"}
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end.
pre_command_fail_bad_key() ->
[{doc, "Test pre command due to bad key"}].
pre_command_fail_bad_key(Config) when is_list(Config) ->
try
case crypto:get_test_engine() of
{error, notexist} ->
{skip, "OTP Test engine not found"};
{ok, Engine} ->
case crypto:engine_load(<<"dynamic">>,
[{<<"SO_WRONG_PATH">>, Engine},
{<<"ID">>, <<"MD5">>},
<<"LOAD">>],
[]) of
{error, ctrl_cmd_failed} ->
ok;
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"}
end
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end.
failed_engine_init()->
[{doc, "Test failing engine init due to missed pre command"}].
failed_engine_init(Config) when is_list(Config) ->
try
case crypto:get_test_engine() of
{error, notexist} ->
{skip, "OTP Test engine not found"};
{ok, Engine} ->
case crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
{<<"ID">>, <<"MD5">>}],
[]) of
{error, add_engine_failed} ->
ok;
{error, bad_engine_id} ->
{skip, "Dynamic Engine not supported"}
end
end
catch
error:notsup ->
{skip, "Engine not supported on this OpenSSL version"}
end.
%%%----------------------------------------------------------------
%%% Pub/priv key storage tests. Thoose are for testing the crypto.erl
%%% support for using priv/pub keys stored in an engine.
sign_verify_rsa(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key.pem")},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key.pem")},
sign_verify(rsa, sha, Priv, Pub).
sign_verify_dsa(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "dsa_private_key.pem")},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "dsa_public_key.pem")},
sign_verify(dss, sha, Priv, Pub).
sign_verify_ecdsa(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "ecdsa_private_key.pem")},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "ecdsa_public_key.pem")},
sign_verify(ecdsa, sha, Priv, Pub).
sign_verify_rsa_pwd(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key_pwd.pem"),
password => "password"},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key_pwd.pem")},
sign_verify(rsa, sha, Priv, Pub).
priv_encrypt_pub_decrypt_rsa(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key.pem")},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key.pem")},
priv_enc_pub_dec(rsa, Priv, Pub, rsa_pkcs1_padding).
priv_encrypt_pub_decrypt_rsa_pwd(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key_pwd.pem"),
password => "password"},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key_pwd.pem")},
priv_enc_pub_dec(rsa, Priv, Pub, rsa_pkcs1_padding).
pub_encrypt_priv_decrypt_rsa(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key.pem")},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key.pem")},
pub_enc_priv_dec(rsa, Pub, Priv, rsa_pkcs1_padding).
pub_encrypt_priv_decrypt_rsa_pwd(Config) ->
Priv = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_private_key.pem"),
password => "password"},
Pub = #{engine => engine_ref(Config),
key_id => key_id(Config, "rsa_public_key.pem")},
pub_enc_priv_dec(rsa, Pub, Priv, rsa_pkcs1_padding).
%%%================================================================
%%% Help for engine_stored_pub_priv_keys* test cases
%%%
load_storage_engine(_Config) ->
case crypto:get_test_engine() of
{ok, Engine} ->
try crypto:engine_load(<<"dynamic">>,
[{<<"SO_PATH">>, Engine},
<<"LOAD">>],
[])
catch
error:notsup ->
{error, notsup}
end;
{error, Error} ->
{error, Error}
end.
key_dir(Config) ->
DataDir = unicode:characters_to_binary(proplists:get_value(data_dir, Config)),
filename:join(DataDir, "pkcs8").
engine_ref(Config) ->
proplists:get_value(storage_engine, Config).
key_id(Config, File) ->
filename:join(proplists:get_value(storage_dir,Config), File).
pubkey_alg_supported(Alg) ->
lists:member(Alg,
proplists:get_value(public_keys, crypto:supports())).
pub_enc_priv_dec(Alg, KeyEnc, KeyDec, Padding) ->
case pubkey_alg_supported(Alg) of
true ->
PlainText = <<"Hej på dig">>,
CryptoText = crypto:public_encrypt(Alg, PlainText, KeyEnc, Padding),
case crypto:private_decrypt(Alg, CryptoText, KeyDec, Padding) of
PlainText -> ok;
_ -> {fail, "Encrypt-decrypt error"}
end;
false ->
{skip, lists:concat([Alg," is not supported by cryptolib"])}
end.
priv_enc_pub_dec(Alg, KeyEnc, KeyDec, Padding) ->
case pubkey_alg_supported(Alg) of
true ->
PlainText = <<"Hej på dig">>,
CryptoText = crypto:private_encrypt(Alg, PlainText, KeyEnc, Padding),
case crypto:public_decrypt(Alg, CryptoText, KeyDec, Padding) of
PlainText -> ok;
_ -> {fail, "Encrypt-decrypt error"}
end;
false ->
{skip, lists:concat([Alg," is not supported by cryptolib"])}
end.
sign_verify(Alg, Sha, KeySign, KeyVerify) ->
case pubkey_alg_supported(Alg) of
true ->
PlainText = <<"Hej på dig">>,
Signature = crypto:sign(Alg, Sha, PlainText, KeySign),
case crypto:verify(Alg, Sha, PlainText, Signature, KeyVerify) of
true -> ok;
_ -> {fail, "Sign-verify error"}
end;
false ->
{skip, lists:concat([Alg," is not supported by cryptolib"])}
end.
