2 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the Apache License 2.0 (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
10 use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
11 use OpenSSL::Test::Utils;
14 my $test_name = "test_sslsigalgs";
17 plan skip_all => "TLSProxy isn't usable on $^O"
20 plan skip_all => "$test_name needs the dynamic engine feature enabled"
21 if disabled("engine") || disabled("dynamic-engine");
23 plan skip_all => "$test_name needs the sock feature enabled"
26 plan skip_all => "$test_name needs TLS1.2 or TLS1.3 enabled"
27 if disabled("tls1_2") && disabled("tls1_3");
29 $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
30 my $proxy = TLSProxy::Proxy->new(
32 cmdstr(app(["openssl"]), display => 1),
33 srctop_file("apps", "server.pem"),
34 (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
39 EMPTY_SIG_ALGS_EXT => 1,
40 NO_KNOWN_SIG_ALGS => 2,
42 PSS_ONLY_SIG_ALGS => 4,
45 SIGALGS_CERT_ALL => 7,
46 SIGALGS_CERT_PKCS => 8,
47 SIGALGS_CERT_INVALID => 9
50 #Note: Throughout this test we override the default ciphersuites where TLSv1.2
51 # is expected to ensure that a ServerKeyExchange message is sent that uses
54 #Test 1: Default sig algs should succeed
55 $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
57 ok(TLSProxy::Message->success, "Default sigalgs");
61 skip "TLSv1.3 disabled", 6 if disabled("tls1_3");
63 $proxy->filter(\&sigalgs_filter);
65 #Test 2: Sending no sig algs extension in TLSv1.3 should fail
67 $testtype = NO_SIG_ALGS_EXT;
69 ok(TLSProxy::Message->fail, "No TLSv1.3 sigalgs");
71 #Test 3: Sending an empty sig algs extension in TLSv1.3 should fail
73 $testtype = EMPTY_SIG_ALGS_EXT;
75 ok(TLSProxy::Message->fail, "Empty TLSv1.3 sigalgs");
77 #Test 4: Sending a list with no recognised sig algs in TLSv1.3 should fail
79 $testtype = NO_KNOWN_SIG_ALGS;
81 ok(TLSProxy::Message->fail, "No known TLSv1.3 sigalgs");
83 #Test 5: Sending a sig algs list without pss for an RSA cert in TLSv1.3
86 $testtype = NO_PSS_SIG_ALGS;
88 ok(TLSProxy::Message->fail, "No PSS TLSv1.3 sigalgs");
90 #Test 6: Sending only TLSv1.3 PSS sig algs in TLSv1.3 should succeed
91 #TODO(TLS1.3): Do we need to verify the cert to make sure its a PSS only
94 $testtype = PSS_ONLY_SIG_ALGS;
96 ok(TLSProxy::Message->success, "PSS only sigalgs in TLSv1.3");
98 #Test 7: Modify the CertificateVerify sigalg from rsa_pss_rsae_sha256 to
99 # rsa_pss_pss_sha256. This should fail because the public key OID
100 # in the certificate is rsaEncryption and not rsassaPss
101 $proxy->filter(\&modify_cert_verify_sigalg);
104 ok(TLSProxy::Message->fail,
105 "Mismatch between CertVerify sigalg and public key OID");
109 skip "EC or TLSv1.3 disabled", 1
110 if disabled("tls1_3") || disabled("ec");
111 #Test 8: Sending a valid sig algs list but not including a sig type that
112 # matches the certificate should fail in TLSv1.3.
114 $proxy->clientflags("-sigalgs ECDSA+SHA256");
115 $proxy->filter(undef);
117 ok(TLSProxy::Message->fail, "No matching TLSv1.3 sigalgs");
121 skip "EC, TLSv1.3 or TLSv1.2 disabled", 1
122 if disabled("tls1_2") || disabled("tls1_3") || disabled("ec");
124 #Test 9: Sending a full list of TLSv1.3 sig algs but negotiating TLSv1.2
127 $proxy->serverflags("-no_tls1_3");
128 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
129 $proxy->filter(undef);
131 ok(TLSProxy::Message->success, "TLSv1.3 client TLSv1.2 server");
135 skip "EC or TLSv1.2 disabled", 10 if disabled("tls1_2") || disabled("ec");
137 $proxy->filter(\&sigalgs_filter);
139 #Test 10: Sending no sig algs extension in TLSv1.2 should succeed at
142 $testtype = NO_SIG_ALGS_EXT;
143 $proxy->clientflags("-no_tls1_3 -cipher DEFAULT\@SECLEVEL=1");
144 $proxy->ciphers("ECDHE-RSA-AES128-SHA\@SECLEVEL=1");
146 ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs seclevel 1");
148 #Test 11: Sending no sig algs extension in TLSv1.2 should fail at security
149 # level 2 since it will try to use SHA1. Testing client at level 1,
152 $testtype = NO_SIG_ALGS_EXT;
153 $proxy->clientflags("-tls1_2 -cipher DEFAULT\@SECLEVEL=1");
154 $proxy->ciphers("DEFAULT\@SECLEVEL=2");
156 ok(TLSProxy::Message->fail, "No TLSv1.2 sigalgs server seclevel 2");
158 #Test 12: Sending no sig algs extension in TLSv1.2 should fail at security
159 # level 2 since it will try to use SHA1. Testing client at level 2,
162 $testtype = NO_SIG_ALGS_EXT;
163 $proxy->clientflags("-tls1_2 -cipher DEFAULT\@SECLEVEL=2");
164 $proxy->ciphers("DEFAULT\@SECLEVEL=1");
166 ok(TLSProxy::Message->fail, "No TLSv1.2 sigalgs client seclevel 2");
168 #Test 13: Sending an empty sig algs extension in TLSv1.2 should fail
170 $testtype = EMPTY_SIG_ALGS_EXT;
171 $proxy->clientflags("-no_tls1_3");
172 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
174 ok(TLSProxy::Message->fail, "Empty TLSv1.2 sigalgs");
176 #Test 14: Sending a list with no recognised sig algs in TLSv1.2 should fail
178 $testtype = NO_KNOWN_SIG_ALGS;
179 $proxy->clientflags("-no_tls1_3");
180 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
182 ok(TLSProxy::Message->fail, "No known TLSv1.3 sigalgs");
184 #Test 15: Sending a sig algs list without pss for an RSA cert in TLSv1.2
187 $testtype = NO_PSS_SIG_ALGS;
188 $proxy->clientflags("-no_tls1_3");
189 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
191 ok(TLSProxy::Message->success, "No PSS TLSv1.2 sigalgs");
193 #Test 16: Sending only TLSv1.3 PSS sig algs in TLSv1.2 should succeed
195 $testtype = PSS_ONLY_SIG_ALGS;
196 $proxy->serverflags("-no_tls1_3");
197 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
199 ok(TLSProxy::Message->success, "PSS only sigalgs in TLSv1.2");
201 #Test 17: Responding with a sig alg we did not send in TLSv1.2 should fail
202 # We send rsa_pkcs1_sha256 and respond with rsa_pss_rsae_sha256
203 # TODO(TLS1.3): Add a similar test to the TLSv1.3 section above
204 # when we have an API capable of configuring the TLSv1.3 sig algs
206 $testtype = PSS_ONLY_SIG_ALGS;
207 $proxy->clientflags("-no_tls1_3 -sigalgs RSA+SHA256");
208 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
210 ok(TLSProxy::Message->fail, "Sigalg we did not send in TLSv1.2");
212 #Test 18: Sending a valid sig algs list but not including a sig type that
213 # matches the certificate should fail in TLSv1.2
215 $proxy->clientflags("-no_tls1_3 -sigalgs ECDSA+SHA256");
216 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
217 $proxy->filter(undef);
219 ok(TLSProxy::Message->fail, "No matching TLSv1.2 sigalgs");
220 $proxy->filter(\&sigalgs_filter);
222 #Test 19: No sig algs extension, ECDSA cert, TLSv1.2 should succeed
224 $testtype = NO_SIG_ALGS_EXT;
225 $proxy->clientflags("-no_tls1_3");
226 $proxy->serverflags("-cert " . srctop_file("test", "certs",
227 "server-ecdsa-cert.pem") .
228 " -key " . srctop_file("test", "certs",
229 "server-ecdsa-key.pem")),
230 $proxy->ciphers("ECDHE-ECDSA-AES128-SHA");
232 ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs, ECDSA");
235 my ($dsa_status, $sha1_status, $sha224_status);
237 skip "TLSv1.3 disabled", 2 if disabled("tls1_3") || disabled("dsa");
238 #Test 20: signature_algorithms with 1.3-only ClientHello
239 $testtype = PURE_SIGALGS;
240 $dsa_status = $sha1_status = $sha224_status = 0;
242 $proxy->clientflags("-tls1_3");
243 $proxy->filter(\&modify_sigalgs_filter);
245 ok($dsa_status && $sha1_status && $sha224_status,
246 "DSA/SHA2 sigalg sent for 1.3-only ClientHello");
248 #Test 21: signature_algorithms with backwards compatible ClientHello
250 skip "TLSv1.2 disabled", 1 if disabled("tls1_2");
251 $testtype = COMPAT_SIGALGS;
252 $dsa_status = $sha1_status = $sha224_status = 0;
254 $proxy->filter(\&modify_sigalgs_filter);
256 ok($dsa_status && $sha1_status && $sha224_status,
257 "DSA sigalg not sent for compat ClientHello");
262 skip "TLSv1.3 disabled", 3 if disabled("tls1_3");
263 #Test 22: Insert signature_algorithms_cert that match normal sigalgs
264 $testtype = SIGALGS_CERT_ALL;
266 $proxy->filter(\&modify_sigalgs_cert_filter);
268 ok(TLSProxy::Message->success, "sigalgs_cert in TLSv1.3");
270 #Test 23: Insert signature_algorithms_cert that forces PKCS#1 cert
271 $testtype = SIGALGS_CERT_PKCS;
273 $proxy->filter(\&modify_sigalgs_cert_filter);
275 ok(TLSProxy::Message->success, "sigalgs_cert in TLSv1.3 with PKCS#1 cert");
277 #Test 24: Insert signature_algorithms_cert that fails
278 $testtype = SIGALGS_CERT_INVALID;
280 $proxy->filter(\&modify_sigalgs_cert_filter);
282 ok(TLSProxy::Message->fail, "No matching certificate for sigalgs_cert");
291 # We're only interested in the initial ClientHello
292 if ($proxy->flight != 0) {
296 foreach my $message (@{$proxy->message_list}) {
297 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
298 if ($testtype == NO_SIG_ALGS_EXT) {
299 $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS);
302 if ($testtype == EMPTY_SIG_ALGS_EXT) {
303 $sigalg = pack "C2", 0x00, 0x00;
304 } elsif ($testtype == NO_KNOWN_SIG_ALGS) {
305 $sigalg = pack "C4", 0x00, 0x02, 0xff, 0xff;
306 } elsif ($testtype == NO_PSS_SIG_ALGS) {
307 #No PSS sig algs - just send rsa_pkcs1_sha256
308 $sigalg = pack "C4", 0x00, 0x02, 0x04, 0x01;
310 #PSS sig algs only - just send rsa_pss_rsae_sha256
311 $sigalg = pack "C4", 0x00, 0x02, 0x08, 0x04;
313 $message->set_extension(TLSProxy::Message::EXT_SIG_ALGS, $sigalg);
321 sub modify_sigalgs_filter
325 # We're only interested in the initial ClientHello
326 return if ($proxy->flight != 0);
328 foreach my $message (@{$proxy->message_list}) {
332 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
333 if ($testtype == PURE_SIGALGS) {
335 $ext = $message->extension_data->{TLSProxy::Message::EXT_SIG_ALGS};
336 @algs = unpack('S>*', $ext);
337 # unpack will unpack the length as well
340 if ($_ == TLSProxy::Message::SIG_ALG_DSA_SHA256
341 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA384
342 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA512
343 || $_ == TLSProxy::Message::OSSL_SIG_ALG_DSA_SHA224
344 || $_ == TLSProxy::Message::SIG_ALG_RSA_PKCS1_SHA1
345 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA1
346 || $_ == TLSProxy::Message::SIG_ALG_ECDSA_SHA1) {
350 $sha1_status = $dsa_status = $sha224_status = 1 if ($ok);
351 } elsif ($testtype == COMPAT_SIGALGS) {
352 $ext = $message->extension_data->{TLSProxy::Message::EXT_SIG_ALGS};
353 @algs = unpack('S>*', $ext);
354 # unpack will unpack the length as well
357 if ($_ == TLSProxy::Message::SIG_ALG_DSA_SHA256
358 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA384
359 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA512) {
362 if ($_ == TLSProxy::Message::SIG_ALG_RSA_PKCS1_SHA1
363 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA1
364 || $_ == TLSProxy::Message::SIG_ALG_ECDSA_SHA1) {
367 if ($_ == TLSProxy::Message::OSSL_SIG_ALG_RSA_PKCS1_SHA224
368 || $_ == TLSProxy::Message::OSSL_SIG_ALG_DSA_SHA224
369 || $_ == TLSProxy::Message::OSSL_SIG_ALG_ECDSA_SHA224) {
378 sub modify_sigalgs_cert_filter
382 # We're only interested in the initial ClientHello
383 if ($proxy->flight != 0) {
387 foreach my $message (@{$proxy->message_list}) {
388 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
390 # two byte length at front of sigs, then two-byte sigschemes
391 if ($testtype == SIGALGS_CERT_ALL) {
392 $sigs = pack "C26", 0x00, 0x18,
393 # rsa_pkcs_sha{256,512} rsa_pss_rsae_sha{256,512}
394 0x04, 0x01, 0x06, 0x01, 0x08, 0x04, 0x08, 0x06,
395 # ed25518 ed448 rsa_pss_pss_sha{256,512}
396 0x08, 0x07, 0x08, 0x08, 0x08, 0x09, 0x08, 0x0b,
397 # ecdsa_secp{256,512} rsa+sha1 ecdsa+sha1
398 0x04, 0x03, 0x06, 0x03, 0x02, 0x01, 0x02, 0x03;
399 } elsif ($testtype == SIGALGS_CERT_PKCS) {
400 $sigs = pack "C10", 0x00, 0x08,
401 # rsa_pkcs_sha{256,384,512,1}
402 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02, 0x01;
403 } elsif ($testtype == SIGALGS_CERT_INVALID) {
404 $sigs = pack "C4", 0x00, 0x02,
405 # unregistered codepoint
408 $message->set_extension(TLSProxy::Message::EXT_SIG_ALGS_CERT, $sigs);
414 sub modify_cert_verify_sigalg
418 # We're only interested in the CertificateVerify
419 if ($proxy->flight != 1) {
423 foreach my $message (@{$proxy->message_list}) {
424 if ($message->mt == TLSProxy::Message::MT_CERTIFICATE_VERIFY) {
425 $message->sigalg(TLSProxy::Message::SIG_ALG_RSA_PSS_PSS_SHA256);