openssl/test/recipes/70-test_tls13kexmodes.t
Benjamin Kaduk 80c25611ab Update expected results for tls13kexmodes tests
One of the scenarios constructed in these tests was erroneously
producing successful handshakes until the previous commits, but should
have been failing.  Update our expected behavior to match the
specification requirements, and adjust the commentary slightly for
a test case relevant for the other preceding commit.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14749)
2021-05-12 09:11:48 -07:00

376 lines
15 KiB
Perl

#! /usr/bin/env perl
# Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
use OpenSSL::Test::Utils;
use File::Temp qw(tempfile);
use TLSProxy::Proxy;
use checkhandshake qw(checkhandshake @handmessages @extensions);
my $test_name = "test_tls13kexmodes";
setup($test_name);
plan skip_all => "TLSProxy isn't usable on $^O"
if $^O =~ /^(VMS)$/;
plan skip_all => "$test_name needs the dynamic engine feature enabled"
if disabled("engine") || disabled("dynamic-engine");
plan skip_all => "$test_name needs the sock feature enabled"
if disabled("sock");
plan skip_all => "$test_name needs TLSv1.3 enabled"
if disabled("tls1_3") || (disabled("ec") && disabled("dh"));
plan skip_all => "$test_name needs EC enabled"
if disabled("ec");
$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
@handmessages = (
[TLSProxy::Message::MT_CLIENT_HELLO,
checkhandshake::ALL_HANDSHAKES],
[TLSProxy::Message::MT_SERVER_HELLO,
checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
[TLSProxy::Message::MT_CLIENT_HELLO,
checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
[TLSProxy::Message::MT_SERVER_HELLO,
checkhandshake::ALL_HANDSHAKES],
[TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS,
checkhandshake::ALL_HANDSHAKES],
[TLSProxy::Message::MT_CERTIFICATE_REQUEST,
checkhandshake::CLIENT_AUTH_HANDSHAKE],
[TLSProxy::Message::MT_CERTIFICATE,
checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
[TLSProxy::Message::MT_CERTIFICATE_VERIFY,
checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
[TLSProxy::Message::MT_FINISHED,
checkhandshake::ALL_HANDSHAKES],
[TLSProxy::Message::MT_CERTIFICATE,
checkhandshake::CLIENT_AUTH_HANDSHAKE],
[TLSProxy::Message::MT_CERTIFICATE_VERIFY,
checkhandshake::CLIENT_AUTH_HANDSHAKE],
[TLSProxy::Message::MT_FINISHED,
checkhandshake::ALL_HANDSHAKES],
[0, 0]
);
@extensions = (
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
TLSProxy::Message::CLIENT,
checkhandshake::SERVER_NAME_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
TLSProxy::Message::CLIENT,
checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
TLSProxy::Message::CLIENT,
checkhandshake::ALPN_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
TLSProxy::Message::CLIENT,
checkhandshake::SCT_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
TLSProxy::Message::CLIENT,
checkhandshake::PSK_KEX_MODES_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
TLSProxy::Message::CLIENT,
checkhandshake::PSK_CLI_EXTENSION],
[TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
TLSProxy::Message::SERVER,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
TLSProxy::Message::SERVER,
checkhandshake::KEY_SHARE_HRR_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
TLSProxy::Message::CLIENT,
checkhandshake::SERVER_NAME_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
TLSProxy::Message::CLIENT,
checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
TLSProxy::Message::CLIENT,
checkhandshake::ALPN_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
TLSProxy::Message::CLIENT,
checkhandshake::SCT_CLI_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
TLSProxy::Message::CLIENT,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
TLSProxy::Message::CLIENT,
checkhandshake::PSK_KEX_MODES_EXTENSION],
[TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
TLSProxy::Message::CLIENT,
checkhandshake::PSK_CLI_EXTENSION],
[TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
TLSProxy::Message::SERVER,
checkhandshake::DEFAULT_EXTENSIONS],
[TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
TLSProxy::Message::SERVER,
checkhandshake::KEY_SHARE_SRV_EXTENSION],
[TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_PSK,
TLSProxy::Message::SERVER,
checkhandshake::PSK_SRV_EXTENSION],
[TLSProxy::Message::MT_CERTIFICATE, TLSProxy::Message::EXT_STATUS_REQUEST,
TLSProxy::Message::SERVER,
checkhandshake::STATUS_REQUEST_SRV_EXTENSION],
[0,0,0,0]
);
use constant {
DELETE_EXTENSION => 0,
EMPTY_EXTENSION => 1,
NON_DHE_KEX_MODE_ONLY => 2,
DHE_KEX_MODE_ONLY => 3,
UNKNOWN_KEX_MODES => 4,
BOTH_KEX_MODES => 5
};
my $proxy = TLSProxy::Proxy->new(
undef,
cmdstr(app(["openssl"]), display => 1),
srctop_file("apps", "server.pem"),
(!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
);
#Test 1: First get a session
(undef, my $session) = tempfile();
$proxy->clientflags("-sess_out ".$session);
$proxy->serverflags("-servername localhost");
$proxy->sessionfile($session);
$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
plan tests => 11;
ok(TLSProxy::Message->success(), "Initial connection");
#Test 2: Attempt a resume with no kex modes extension. Should fail (server
# MUST abort handshake with pre_shared key and no psk_kex_modes)
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
my $testtype = DELETE_EXTENSION;
$proxy->filter(\&modify_kex_modes_filter);
$proxy->start();
ok(TLSProxy::Message->fail(), "Resume with no kex modes");
#Test 3: Attempt a resume with empty kex modes extension. Should fail (empty
# extension is invalid)
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$testtype = EMPTY_EXTENSION;
$proxy->start();
ok(TLSProxy::Message->fail(), "Resume with empty kex modes");
#Test 4: Attempt a resume with non-dhe kex mode only. Should resume without a
# key_share
$proxy->clear();
$proxy->clientflags("-allow_no_dhe_kex -sess_in ".$session);
$proxy->serverflags("-allow_no_dhe_kex");
$testtype = NON_DHE_KEX_MODE_ONLY;
$proxy->start();
checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with non-dhe kex mode");
#Test 5: Attempt a resume with dhe kex mode only. Should resume with a key_share
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$testtype = DHE_KEX_MODE_ONLY;
$proxy->start();
checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::KEY_SHARE_SRV_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with non-dhe kex mode");
#Test 6: Attempt a resume with only unrecognised kex modes. Should not resume
# but rather fall back to full handshake
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$testtype = UNKNOWN_KEX_MODES;
$proxy->start();
checkhandshake($proxy, checkhandshake::DEFAULT_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::KEY_SHARE_SRV_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION,
"Resume with unrecognized kex mode");
#Test 7: Attempt a resume with both non-dhe and dhe kex mode. Should resume with
# a key_share
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$testtype = BOTH_KEX_MODES;
$proxy->start();
checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::KEY_SHARE_SRV_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with non-dhe kex mode");
#Test 8: Attempt a resume with both non-dhe and dhe kex mode, but unacceptable
# initial key_share. Should resume with a key_share following an HRR
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$proxy->serverflags("-curves P-256");
$testtype = BOTH_KEX_MODES;
$proxy->start();
checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::KEY_SHARE_SRV_EXTENSION
| checkhandshake::KEY_SHARE_HRR_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with both kex modes and HRR");
#Test 9: Attempt a resume with dhe kex mode only and an unacceptable initial
# key_share. Should resume with a key_share following an HRR
$proxy->clear();
$proxy->clientflags("-sess_in ".$session);
$proxy->serverflags("-curves P-256");
$testtype = DHE_KEX_MODE_ONLY;
$proxy->start();
checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::KEY_SHARE_SRV_EXTENSION
| checkhandshake::KEY_SHARE_HRR_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with dhe kex mode and HRR");
#Test 10: Attempt a resume with both non-dhe and dhe kex mode, unacceptable
# initial key_share and no overlapping groups. Should resume without a
# key_share
$proxy->clear();
$proxy->clientflags("-allow_no_dhe_kex -curves P-384 -sess_in ".$session);
$proxy->serverflags("-allow_no_dhe_kex -curves P-256");
$testtype = BOTH_KEX_MODES;
$proxy->start();
checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
checkhandshake::DEFAULT_EXTENSIONS
| checkhandshake::PSK_KEX_MODES_EXTENSION
| checkhandshake::PSK_CLI_EXTENSION
| checkhandshake::PSK_SRV_EXTENSION,
"Resume with both kex modes, no overlapping groups");
#Test 11: Attempt a resume with dhe kex mode only, unacceptable
# initial key_share and no overlapping groups. Should fail
$proxy->clear();
$proxy->clientflags("-curves P-384 -sess_in ".$session);
$proxy->serverflags("-curves P-256");
$testtype = DHE_KEX_MODE_ONLY;
$proxy->start();
ok(TLSProxy::Message->fail(), "Resume with dhe kex mode, no overlapping groups");
unlink $session;
sub modify_kex_modes_filter
{
my $proxy = shift;
# We're only interested in the initial ClientHello
return if ($proxy->flight != 0);
foreach my $message (@{$proxy->message_list}) {
if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
my $ext;
if ($testtype == EMPTY_EXTENSION) {
$ext = pack "C",
0x00; #List length
} elsif ($testtype == NON_DHE_KEX_MODE_ONLY) {
$ext = pack "C2",
0x01, #List length
0x00; #psk_ke
} elsif ($testtype == DHE_KEX_MODE_ONLY) {
$ext = pack "C2",
0x01, #List length
0x01; #psk_dhe_ke
} elsif ($testtype == UNKNOWN_KEX_MODES) {
$ext = pack "C3",
0x02, #List length
0xfe, #unknown
0xff; #unknown
} elsif ($testtype == BOTH_KEX_MODES) {
#We deliberately list psk_ke first...should still use psk_dhe_ke
$ext = pack "C3",
0x02, #List length
0x00, #psk_ke
0x01; #psk_dhe_ke
}
if ($testtype == DELETE_EXTENSION) {
$message->delete_extension(
TLSProxy::Message::EXT_PSK_KEX_MODES);
} else {
$message->set_extension(
TLSProxy::Message::EXT_PSK_KEX_MODES, $ext);
}
$message->repack();
}
}
}