| #! /usr/bin/env perl |
| # Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. |
| # |
| # Licensed under the OpenSSL license (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 bldtop_dir/; |
| use OpenSSL::Test::Utils; |
| use TLSProxy::Proxy; |
| |
| my $test_name = "test_sslsigalgs"; |
| setup($test_name); |
| |
| plan skip_all => "TLSProxy isn't usable on $^O" |
| if $^O =~ /^(VMS|MSWin32)$/; |
| |
| 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 TLS1.2 or TLS1.3 enabled" |
| if disabled("tls1_2") && disabled("tls1_3"); |
| |
| $ENV{OPENSSL_ia32cap} = '~0x200000200000000'; |
| my $proxy = TLSProxy::Proxy->new( |
| undef, |
| cmdstr(app(["openssl"]), display => 1), |
| srctop_file("apps", "server.pem"), |
| (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE}) |
| ); |
| |
| use constant { |
| NO_SIG_ALGS_EXT => 0, |
| EMPTY_SIG_ALGS_EXT => 1, |
| NO_KNOWN_SIG_ALGS => 2, |
| NO_PSS_SIG_ALGS => 3, |
| PSS_ONLY_SIG_ALGS => 4 |
| }; |
| |
| #Note: Throughout this test we override the default ciphersuites where TLSv1.2 |
| # is expected to ensure that a ServerKeyExchange message is sent that uses |
| # the sigalgs |
| |
| #Test 1: Default sig algs should succeed |
| $proxy->start() or plan skip_all => "Unable to start up Proxy for tests"; |
| plan tests => 16; |
| ok(TLSProxy::Message->success, "Default sigalgs"); |
| my $testtype; |
| |
| SKIP: { |
| skip "TLSv1.3 disabled", 5 if disabled("tls1_3"); |
| |
| $proxy->filter(\&sigalgs_filter); |
| |
| #Test 2: Sending no sig algs extension in TLSv1.3 should fail |
| $proxy->clear(); |
| $testtype = NO_SIG_ALGS_EXT; |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No TLSv1.3 sigalgs"); |
| |
| #Test 3: Sending an empty sig algs extension in TLSv1.3 should fail |
| $proxy->clear(); |
| $testtype = EMPTY_SIG_ALGS_EXT; |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "Empty TLSv1.3 sigalgs"); |
| |
| #Test 4: Sending a list with no recognised sig algs in TLSv1.3 should fail |
| $proxy->clear(); |
| $testtype = NO_KNOWN_SIG_ALGS; |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No known TLSv1.3 sigalgs"); |
| |
| #Test 5: Sending a sig algs list without pss for an RSA cert in TLSv1.3 |
| # should fail |
| $proxy->clear(); |
| $testtype = NO_PSS_SIG_ALGS; |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No PSS TLSv1.3 sigalgs"); |
| |
| #Test 6: Sending only TLSv1.3 PSS sig algs in TLSv1.3 should succeed |
| #TODO(TLS1.3): Do we need to verify the cert to make sure its a PSS only |
| #cert in this case? |
| $proxy->clear(); |
| $testtype = PSS_ONLY_SIG_ALGS; |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "PSS only sigalgs in TLSv1.3"); |
| } |
| |
| SKIP: { |
| skip "EC, TLSv1.3 or TLSv1.2 disabled", 2 |
| if disabled("tls1_2") || disabled("tls1_3") || disabled("ec"); |
| |
| #Test 7: Sending a valid sig algs list but not including a sig type that |
| # matches the certificate should fail in TLSv1.3. We need TLSv1.2 |
| # enabled for this test - otherwise the client will not attempt to |
| # connect due to no TLSv1.3 ciphers being available. |
| # TODO(TLS1.3): When proper TLSv1.3 certificate selection is working |
| # we can move this test into the section above |
| $proxy->clear(); |
| $proxy->clientflags("-sigalgs ECDSA+SHA256"); |
| $proxy->filter(undef); |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No matching TLSv1.3 sigalgs"); |
| |
| #Test 8: Sending a full list of TLSv1.3 sig algs but negotiating TLSv1.2 |
| # should succeed |
| $proxy->clear(); |
| $proxy->serverflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->filter(undef); |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "TLSv1.3 client TLSv1.2 server"); |
| } |
| |
| SKIP: { |
| skip "EC or TLSv1.2 disabled", 8 if disabled("tls1_2") || disabled("ec"); |
| |
| $proxy->filter(\&sigalgs_filter); |
| |
| #Test 9: Sending no sig algs extension in TLSv1.2 should succeed |
| $proxy->clear(); |
| $testtype = NO_SIG_ALGS_EXT; |
| $proxy->clientflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs"); |
| |
| #Test 10: Sending an empty sig algs extension in TLSv1.2 should fail |
| $proxy->clear(); |
| $testtype = EMPTY_SIG_ALGS_EXT; |
| $proxy->clientflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "Empty TLSv1.2 sigalgs"); |
| |
| #Test 11: Sending a list with no recognised sig algs in TLSv1.2 should fail |
| $proxy->clear(); |
| $testtype = NO_KNOWN_SIG_ALGS; |
| $proxy->clientflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No known TLSv1.3 sigalgs"); |
| |
| #Test 12: Sending a sig algs list without pss for an RSA cert in TLSv1.2 |
| # should succeed |
| $proxy->clear(); |
| $testtype = NO_PSS_SIG_ALGS; |
| $proxy->clientflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "No PSS TLSv1.2 sigalgs"); |
| |
| #Test 13: Sending only TLSv1.3 PSS sig algs in TLSv1.2 should succeed |
| $proxy->clear(); |
| $testtype = PSS_ONLY_SIG_ALGS; |
| $proxy->serverflags("-no_tls1_3"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "PSS only sigalgs in TLSv1.2"); |
| |
| #Test 14: Responding with a sig alg we did not send in TLSv1.2 should fail |
| # We send rsa_pkcs1_sha256 and respond with rsa_pss_sha256 |
| # TODO(TLS1.3): Add a similar test to the TLSv1.3 section above |
| # when we have an API capable of configuring the TLSv1.3 sig algs |
| $proxy->clear(); |
| $testtype = PSS_ONLY_SIG_ALGS; |
| $proxy->clientflags("-no_tls1_3 -sigalgs RSA+SHA256"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "Sigalg we did not send in TLSv1.2"); |
| |
| #Test 15: Sending a valid sig algs list but not including a sig type that |
| # matches the certificate should fail in TLSv1.2 |
| $proxy->clear(); |
| $proxy->clientflags("-no_tls1_3 -sigalgs ECDSA+SHA256"); |
| $proxy->ciphers("ECDHE-RSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->filter(undef); |
| $proxy->start(); |
| ok(TLSProxy::Message->fail, "No matching TLSv1.2 sigalgs"); |
| $proxy->filter(\&sigalgs_filter); |
| |
| #Test 16: No sig algs extension, ECDSA cert, TLSv1.2 should succeed |
| $proxy->clear(); |
| $testtype = NO_SIG_ALGS_EXT; |
| $proxy->clientflags("-no_tls1_3"); |
| $proxy->serverflags("-cert " . srctop_file("test", "certs", |
| "server-ecdsa-cert.pem") . |
| " -key " . srctop_file("test", "certs", |
| "server-ecdsa-key.pem")), |
| $proxy->ciphers("ECDHE-ECDSA-AES128-SHA:TLS13-AES-128-GCM-SHA256"); |
| $proxy->start(); |
| ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs, ECDSA"); |
| } |
| |
| |
| |
| sub sigalgs_filter |
| { |
| my $proxy = shift; |
| |
| # We're only interested in the initial ClientHello |
| if ($proxy->flight != 0) { |
| return; |
| } |
| |
| foreach my $message (@{$proxy->message_list}) { |
| if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) { |
| if ($testtype == NO_SIG_ALGS_EXT) { |
| $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS); |
| } else { |
| my $sigalg; |
| if ($testtype == EMPTY_SIG_ALGS_EXT) { |
| $sigalg = pack "C2", 0x00, 0x00; |
| } elsif ($testtype == NO_KNOWN_SIG_ALGS) { |
| $sigalg = pack "C4", 0x00, 0x02, 0xff, 0xff; |
| } elsif ($testtype == NO_PSS_SIG_ALGS) { |
| #No PSS sig algs - just send rsa_pkcs1_sha256 |
| $sigalg = pack "C4", 0x00, 0x02, 0x04, 0x01; |
| } else { |
| #PSS sig algs only - just send rsa_pss_sha256 |
| $sigalg = pack "C4", 0x00, 0x02, 0x08, 0x04; |
| } |
| $message->set_extension(TLSProxy::Message::EXT_SIG_ALGS, $sigalg); |
| } |
| |
| $message->repack(); |
| } |
| } |
| } |