test/recipes/70-test_tls13kexmodes.t

   1 #! /usr/bin/env perl
   2 # Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the OpenSSL license (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9 use strict;
  10 use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
  11 use OpenSSL::Test::Utils;
  12 use File::Temp qw(tempfile);
  13 use TLSProxy::Proxy;
  14 use checkhandshake qw(checkhandshake @handmessages @extensions);
  15
  16 my $test_name = "test_tls13kexmodes";
  17 setup($test_name);
  18
  19 plan skip_all => "TLSProxy isn't usable on $^O"
  20     if $^O =~ /^(VMS|MSWin32)$/;
  21
  22 plan skip_all => "$test_name needs the dynamic engine feature enabled"
  23     if disabled("engine") || disabled("dynamic-engine");
  24
  25 plan skip_all => "$test_name needs the sock feature enabled"
  26     if disabled("sock");
  27
  28 plan skip_all => "$test_name needs TLSv1.3 enabled"
  29     if disabled("tls1_3");
  30
  31 $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
  32 $ENV{CTLOG_FILE} = srctop_file("test", "ct", "log_list.conf");
  33
  34
  35 @handmessages = (
  36     [TLSProxy::Message::MT_CLIENT_HELLO,
  37         checkhandshake::ALL_HANDSHAKES],
  38     [TLSProxy::Message::MT_SERVER_HELLO,
  39         checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
  40     [TLSProxy::Message::MT_CLIENT_HELLO,
  41         checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
  42     [TLSProxy::Message::MT_SERVER_HELLO,
  43         checkhandshake::ALL_HANDSHAKES],
  44     [TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS,
  45         checkhandshake::ALL_HANDSHAKES],
  46     [TLSProxy::Message::MT_CERTIFICATE_REQUEST,
  47         checkhandshake::CLIENT_AUTH_HANDSHAKE],
  48     [TLSProxy::Message::MT_CERTIFICATE,
  49         checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
  50     [TLSProxy::Message::MT_CERTIFICATE_VERIFY,
  51         checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
  52     [TLSProxy::Message::MT_FINISHED,
  53         checkhandshake::ALL_HANDSHAKES],
  54     [TLSProxy::Message::MT_CERTIFICATE,
  55         checkhandshake::CLIENT_AUTH_HANDSHAKE],
  56     [TLSProxy::Message::MT_CERTIFICATE_VERIFY,
  57         checkhandshake::CLIENT_AUTH_HANDSHAKE],
  58     [TLSProxy::Message::MT_FINISHED,
  59         checkhandshake::ALL_HANDSHAKES],
  60     [0, 0]
  61 );
  62
  63 @extensions = (
  64     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
  65         checkhandshake::SERVER_NAME_CLI_EXTENSION],
  66     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
  67         checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
  68     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
  69         checkhandshake::DEFAULT_EXTENSIONS],
  70     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
  71         checkhandshake::DEFAULT_EXTENSIONS],
  72     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
  73         checkhandshake::DEFAULT_EXTENSIONS],
  74     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
  75         checkhandshake::ALPN_CLI_EXTENSION],
  76     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
  77         checkhandshake::SCT_CLI_EXTENSION],
  78     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
  79         checkhandshake::DEFAULT_EXTENSIONS],
  80     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
  81         checkhandshake::DEFAULT_EXTENSIONS],
  82     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
  83         checkhandshake::DEFAULT_EXTENSIONS],
  84     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
  85         checkhandshake::DEFAULT_EXTENSIONS],
  86     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
  87         checkhandshake::DEFAULT_EXTENSIONS],
  88     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
  89         checkhandshake::PSK_KEX_MODES_EXTENSION],
  90     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
  91         checkhandshake::PSK_CLI_EXTENSION],
  92
  93     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
  94         checkhandshake::KEY_SHARE_HRR_EXTENSION],
  95
  96     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
  97         checkhandshake::SERVER_NAME_CLI_EXTENSION],
  98     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
  99         checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
 100     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
 101         checkhandshake::DEFAULT_EXTENSIONS],
 102     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
 103         checkhandshake::DEFAULT_EXTENSIONS],
 104     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
 105         checkhandshake::DEFAULT_EXTENSIONS],
 106     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
 107         checkhandshake::ALPN_CLI_EXTENSION],
 108     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
 109         checkhandshake::SCT_CLI_EXTENSION],
 110     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
 111         checkhandshake::DEFAULT_EXTENSIONS],
 112     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
 113         checkhandshake::DEFAULT_EXTENSIONS],
 114     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
 115         checkhandshake::DEFAULT_EXTENSIONS],
 116     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
 117         checkhandshake::DEFAULT_EXTENSIONS],
 118     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
 119         checkhandshake::DEFAULT_EXTENSIONS],
 120     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
 121         checkhandshake::PSK_KEX_MODES_EXTENSION],
 122     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
 123         checkhandshake::PSK_CLI_EXTENSION],
 124
 125     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
 126         checkhandshake::DEFAULT_EXTENSIONS],
 127     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
 128         checkhandshake::KEY_SHARE_SRV_EXTENSION],
 129     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_PSK,
 130         checkhandshake::PSK_SRV_EXTENSION],
 131
 132     [TLSProxy::Message::MT_CERTIFICATE, TLSProxy::Message::EXT_STATUS_REQUEST,
 133         checkhandshake::STATUS_REQUEST_SRV_EXTENSION],
 134     [0,0,0]
 135 );
 136
 137 use constant {
 138     DELETE_EXTENSION => 0,
 139     EMPTY_EXTENSION => 1,
 140     NON_DHE_KEX_MODE_ONLY => 2,
 141     DHE_KEX_MODE_ONLY => 3,
 142     UNKNOWN_KEX_MODES => 4,
 143     BOTH_KEX_MODES => 5
 144 };
 145
 146 my $proxy = TLSProxy::Proxy->new(
 147     undef,
 148     cmdstr(app(["openssl"]), display => 1),
 149     srctop_file("apps", "server.pem"),
 150     (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
 151 );
 152
 153 #Test 1: First get a session
 154 (undef, my $session) = tempfile();
 155 $proxy->clientflags("-sess_out ".$session);
 156 $proxy->serverflags("-servername localhost");
 157 $proxy->sessionfile($session);
 158 $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
 159 plan tests => 11;
 160 ok(TLSProxy::Message->success(), "Initial connection");
 161
 162 #Test 2: Attempt a resume with no kex modes extension. Should not resume
 163 $proxy->clear();
 164 $proxy->clientflags("-sess_in ".$session);
 165 my $testtype = DELETE_EXTENSION;
 166 $proxy->filter(\&modify_kex_modes_filter);
 167 $proxy->start();
 168 checkhandshake($proxy, checkhandshake::DEFAULT_HANDSHAKE,
 169                checkhandshake::DEFAULT_EXTENSIONS
 170                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 171                | checkhandshake::PSK_CLI_EXTENSION,
 172                "Resume with no kex modes");
 173
 174 #Test 3: Attempt a resume with empty kex modes extension. Should fail (empty
 175 #        extension is invalid)
 176 $proxy->clear();
 177 $proxy->clientflags("-sess_in ".$session);
 178 $testtype = EMPTY_EXTENSION;
 179 $proxy->start();
 180 ok(TLSProxy::Message->fail(), "Resume with empty kex modes");
 181
 182 #Test 4: Attempt a resume with non-dhe kex mode only. Should resume without a
 183 #        key_share
 184 $proxy->clear();
 185 $proxy->clientflags("-allow_no_dhe_kex -sess_in ".$session);
 186 $proxy->serverflags("-allow_no_dhe_kex");
 187 $testtype = NON_DHE_KEX_MODE_ONLY;
 188 $proxy->start();
 189 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
 190                checkhandshake::DEFAULT_EXTENSIONS
 191                | checkhandshake::PSK_KEX_MODES_EXTENSION
 192                | checkhandshake::PSK_CLI_EXTENSION
 193                | checkhandshake::PSK_SRV_EXTENSION,
 194                "Resume with non-dhe kex mode");
 195
 196 #Test 5: Attempt a resume with dhe kex mode only. Should resume with a key_share
 197 $proxy->clear();
 198 $proxy->clientflags("-sess_in ".$session);
 199 $testtype = DHE_KEX_MODE_ONLY;
 200 $proxy->start();
 201 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
 202                checkhandshake::DEFAULT_EXTENSIONS
 203                | checkhandshake::PSK_KEX_MODES_EXTENSION
 204                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 205                | checkhandshake::PSK_CLI_EXTENSION
 206                | checkhandshake::PSK_SRV_EXTENSION,
 207                "Resume with non-dhe kex mode");
 208
 209 #Test 6: Attempt a resume with only unrecognised kex modes. Should not resume
 210 $proxy->clear();
 211 $proxy->clientflags("-sess_in ".$session);
 212 $testtype = UNKNOWN_KEX_MODES;
 213 $proxy->start();
 214 checkhandshake($proxy, checkhandshake::DEFAULT_HANDSHAKE,
 215                checkhandshake::DEFAULT_EXTENSIONS
 216                | checkhandshake::PSK_KEX_MODES_EXTENSION
 217                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 218                | checkhandshake::PSK_CLI_EXTENSION,
 219                "Resume with empty kex modes");
 220
 221 #Test 7: Attempt a resume with both non-dhe and dhe kex mode. Should resume with
 222 #        a key_share
 223 $proxy->clear();
 224 $proxy->clientflags("-sess_in ".$session);
 225 $testtype = BOTH_KEX_MODES;
 226 $proxy->start();
 227 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
 228                checkhandshake::DEFAULT_EXTENSIONS
 229                | checkhandshake::PSK_KEX_MODES_EXTENSION
 230                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 231                | checkhandshake::PSK_CLI_EXTENSION
 232                | checkhandshake::PSK_SRV_EXTENSION,
 233                "Resume with non-dhe kex mode");
 234
 235 #Test 8: Attempt a resume with both non-dhe and dhe kex mode, but unacceptable
 236 #        initial key_share. Should resume with a key_share following an HRR
 237 $proxy->clear();
 238 $proxy->clientflags("-sess_in ".$session);
 239 $proxy->serverflags("-curves P-256");
 240 $testtype = BOTH_KEX_MODES;
 241 $proxy->start();
 242 checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
 243                checkhandshake::DEFAULT_EXTENSIONS
 244                | checkhandshake::PSK_KEX_MODES_EXTENSION
 245                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 246                | checkhandshake::KEY_SHARE_HRR_EXTENSION
 247                | checkhandshake::PSK_CLI_EXTENSION
 248                | checkhandshake::PSK_SRV_EXTENSION,
 249                "Resume with both kex modes and HRR");
 250
 251 #Test 9: Attempt a resume with dhe kex mode only and an unacceptable initial
 252 #        key_share. Should resume with a key_share following an HRR
 253 $proxy->clear();
 254 $proxy->clientflags("-sess_in ".$session);
 255 $proxy->serverflags("-curves P-256");
 256 $testtype = DHE_KEX_MODE_ONLY;
 257 $proxy->start();
 258 checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
 259                checkhandshake::DEFAULT_EXTENSIONS
 260                | checkhandshake::PSK_KEX_MODES_EXTENSION
 261                | checkhandshake::KEY_SHARE_SRV_EXTENSION
 262                | checkhandshake::KEY_SHARE_HRR_EXTENSION
 263                | checkhandshake::PSK_CLI_EXTENSION
 264                | checkhandshake::PSK_SRV_EXTENSION,
 265                "Resume with dhe kex mode and HRR");
 266
 267 #Test 10: Attempt a resume with both non-dhe and dhe kex mode, unacceptable
 268 #         initial key_share and no overlapping groups. Should resume without a
 269 #         key_share
 270 $proxy->clear();
 271 $proxy->clientflags("-allow_no_dhe_kex -curves P-384 -sess_in ".$session);
 272 $proxy->serverflags("-allow_no_dhe_kex -curves P-256");
 273 $testtype = BOTH_KEX_MODES;
 274 $proxy->start();
 275 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
 276                checkhandshake::DEFAULT_EXTENSIONS
 277                | checkhandshake::PSK_KEX_MODES_EXTENSION
 278                | checkhandshake::PSK_CLI_EXTENSION
 279                | checkhandshake::PSK_SRV_EXTENSION,
 280                "Resume with both kex modes, no overlapping groups");
 281
 282 #Test 11: Attempt a resume with dhe kex mode only, unacceptable
 283 #         initial key_share and no overlapping groups. Should fail
 284 $proxy->clear();
 285 $proxy->clientflags("-curves P-384 -sess_in ".$session);
 286 $proxy->serverflags("-curves P-256");
 287 $testtype = DHE_KEX_MODE_ONLY;
 288 $proxy->start();
 289 ok(TLSProxy::Message->fail(), "Resume with dhe kex mode, no overlapping groups");
 290
 291 unlink $session;
 292
 293 sub modify_kex_modes_filter
 294 {
 295     my $proxy = shift;
 296
 297     # We're only interested in the initial ClientHello
 298     return if ($proxy->flight != 0);
 299
 300     foreach my $message (@{$proxy->message_list}) {
 301         if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
 302             my $ext;
 303
 304             if ($testtype == EMPTY_EXTENSION) {
 305                 $ext = pack "C",
 306                     0x00;       #List length
 307             } elsif ($testtype == NON_DHE_KEX_MODE_ONLY) {
 308                 $ext = pack "C2",
 309                     0x01,       #List length
 310                     0x00;       #psk_ke
 311             } elsif ($testtype == DHE_KEX_MODE_ONLY) {
 312                 $ext = pack "C2",
 313                     0x01,       #List length
 314                     0x01;       #psk_dhe_ke
 315             } elsif ($testtype == UNKNOWN_KEX_MODES) {
 316                 $ext = pack "C3",
 317                     0x02,       #List length
 318                     0xfe,       #unknown
 319                     0xff;       #unknown
 320             } elsif ($testtype == BOTH_KEX_MODES) {
 321                 #We deliberately list psk_ke first...should still use psk_dhe_ke
 322                 $ext = pack "C3",
 323                     0x02,       #List length
 324                     0x00,       #psk_ke
 325                     0x01;       #psk_dhe_ke
 326             }
 327
 328             if ($testtype == DELETE_EXTENSION) {
 329                 $message->delete_extension(
 330                     TLSProxy::Message::EXT_PSK_KEX_MODES);
 331             } else {
 332                 $message->set_extension(
 333                     TLSProxy::Message::EXT_PSK_KEX_MODES, $ext);
 334             }
 335
 336             $message->repack();
 337         }
 338     }
 339 }