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", 8 if disabled("tls1_2") || disabled("ec");
137 $proxy->filter(\&sigalgs_filter);
139 #Test 10: Sending no sig algs extension in TLSv1.2 should succeed
141 $testtype = NO_SIG_ALGS_EXT;
142 $proxy->clientflags("-no_tls1_3");
143 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
145 ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs");
147 #Test 11: Sending an empty sig algs extension in TLSv1.2 should fail
149 $testtype = EMPTY_SIG_ALGS_EXT;
150 $proxy->clientflags("-no_tls1_3");
151 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
153 ok(TLSProxy::Message->fail, "Empty TLSv1.2 sigalgs");
155 #Test 12: Sending a list with no recognised sig algs in TLSv1.2 should fail
157 $testtype = NO_KNOWN_SIG_ALGS;
158 $proxy->clientflags("-no_tls1_3");
159 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
161 ok(TLSProxy::Message->fail, "No known TLSv1.3 sigalgs");
163 #Test 13: Sending a sig algs list without pss for an RSA cert in TLSv1.2
166 $testtype = NO_PSS_SIG_ALGS;
167 $proxy->clientflags("-no_tls1_3");
168 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
170 ok(TLSProxy::Message->success, "No PSS TLSv1.2 sigalgs");
172 #Test 14: Sending only TLSv1.3 PSS sig algs in TLSv1.2 should succeed
174 $testtype = PSS_ONLY_SIG_ALGS;
175 $proxy->serverflags("-no_tls1_3");
176 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
178 ok(TLSProxy::Message->success, "PSS only sigalgs in TLSv1.2");
180 #Test 15: Responding with a sig alg we did not send in TLSv1.2 should fail
181 # We send rsa_pkcs1_sha256 and respond with rsa_pss_rsae_sha256
182 # TODO(TLS1.3): Add a similar test to the TLSv1.3 section above
183 # when we have an API capable of configuring the TLSv1.3 sig algs
185 $testtype = PSS_ONLY_SIG_ALGS;
186 $proxy->clientflags("-no_tls1_3 -sigalgs RSA+SHA256");
187 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
189 ok(TLSProxy::Message->fail, "Sigalg we did not send in TLSv1.2");
191 #Test 16: Sending a valid sig algs list but not including a sig type that
192 # matches the certificate should fail in TLSv1.2
194 $proxy->clientflags("-no_tls1_3 -sigalgs ECDSA+SHA256");
195 $proxy->ciphers("ECDHE-RSA-AES128-SHA");
196 $proxy->filter(undef);
198 ok(TLSProxy::Message->fail, "No matching TLSv1.2 sigalgs");
199 $proxy->filter(\&sigalgs_filter);
201 #Test 17: No sig algs extension, ECDSA cert, TLSv1.2 should succeed
203 $testtype = NO_SIG_ALGS_EXT;
204 $proxy->clientflags("-no_tls1_3");
205 $proxy->serverflags("-cert " . srctop_file("test", "certs",
206 "server-ecdsa-cert.pem") .
207 " -key " . srctop_file("test", "certs",
208 "server-ecdsa-key.pem")),
209 $proxy->ciphers("ECDHE-ECDSA-AES128-SHA");
211 ok(TLSProxy::Message->success, "No TLSv1.2 sigalgs, ECDSA");
214 my ($dsa_status, $sha1_status, $sha224_status);
216 skip "TLSv1.3 disabled", 2 if disabled("tls1_3") || disabled("dsa");
217 #Test 18: signature_algorithms with 1.3-only ClientHello
218 $testtype = PURE_SIGALGS;
219 $dsa_status = $sha1_status = $sha224_status = 0;
221 $proxy->clientflags("-tls1_3");
222 $proxy->filter(\&modify_sigalgs_filter);
224 ok($dsa_status && $sha1_status && $sha224_status,
225 "DSA/SHA2 sigalg sent for 1.3-only ClientHello");
227 #Test 19: signature_algorithms with backwards compatible ClientHello
229 skip "TLSv1.2 disabled", 1 if disabled("tls1_2");
230 $testtype = COMPAT_SIGALGS;
231 $dsa_status = $sha1_status = $sha224_status = 0;
233 $proxy->filter(\&modify_sigalgs_filter);
235 ok($dsa_status && $sha1_status && $sha224_status,
236 "DSA sigalg not sent for compat ClientHello");
241 skip "TLSv1.3 disabled", 3 if disabled("tls1_3");
242 #Test 20: Insert signature_algorithms_cert that match normal sigalgs
243 $testtype = SIGALGS_CERT_ALL;
245 $proxy->filter(\&modify_sigalgs_cert_filter);
247 ok(TLSProxy::Message->success, "sigalgs_cert in TLSv1.3");
249 #Test 21: Insert signature_algorithms_cert that forces PKCS#1 cert
250 $testtype = SIGALGS_CERT_PKCS;
252 $proxy->filter(\&modify_sigalgs_cert_filter);
254 ok(TLSProxy::Message->success, "sigalgs_cert in TLSv1.3 with PKCS#1 cert");
256 #Test 22: Insert signature_algorithms_cert that fails
257 $testtype = SIGALGS_CERT_INVALID;
259 $proxy->filter(\&modify_sigalgs_cert_filter);
261 ok(TLSProxy::Message->fail, "No matching certificate for sigalgs_cert");
270 # We're only interested in the initial ClientHello
271 if ($proxy->flight != 0) {
275 foreach my $message (@{$proxy->message_list}) {
276 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
277 if ($testtype == NO_SIG_ALGS_EXT) {
278 $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS);
281 if ($testtype == EMPTY_SIG_ALGS_EXT) {
282 $sigalg = pack "C2", 0x00, 0x00;
283 } elsif ($testtype == NO_KNOWN_SIG_ALGS) {
284 $sigalg = pack "C4", 0x00, 0x02, 0xff, 0xff;
285 } elsif ($testtype == NO_PSS_SIG_ALGS) {
286 #No PSS sig algs - just send rsa_pkcs1_sha256
287 $sigalg = pack "C4", 0x00, 0x02, 0x04, 0x01;
289 #PSS sig algs only - just send rsa_pss_rsae_sha256
290 $sigalg = pack "C4", 0x00, 0x02, 0x08, 0x04;
292 $message->set_extension(TLSProxy::Message::EXT_SIG_ALGS, $sigalg);
300 sub modify_sigalgs_filter
304 # We're only interested in the initial ClientHello
305 return if ($proxy->flight != 0);
307 foreach my $message (@{$proxy->message_list}) {
311 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
312 if ($testtype == PURE_SIGALGS) {
314 $ext = $message->extension_data->{TLSProxy::Message::EXT_SIG_ALGS};
315 @algs = unpack('S>*', $ext);
316 # unpack will unpack the length as well
319 if ($_ == TLSProxy::Message::SIG_ALG_DSA_SHA256
320 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA384
321 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA512
322 || $_ == TLSProxy::Message::OSSL_SIG_ALG_DSA_SHA224
323 || $_ == TLSProxy::Message::SIG_ALG_RSA_PKCS1_SHA1
324 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA1
325 || $_ == TLSProxy::Message::SIG_ALG_ECDSA_SHA1) {
329 $sha1_status = $dsa_status = $sha224_status = 1 if ($ok);
330 } elsif ($testtype == COMPAT_SIGALGS) {
331 $ext = $message->extension_data->{TLSProxy::Message::EXT_SIG_ALGS};
332 @algs = unpack('S>*', $ext);
333 # unpack will unpack the length as well
336 if ($_ == TLSProxy::Message::SIG_ALG_DSA_SHA256
337 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA384
338 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA512) {
341 if ($_ == TLSProxy::Message::SIG_ALG_RSA_PKCS1_SHA1
342 || $_ == TLSProxy::Message::SIG_ALG_DSA_SHA1
343 || $_ == TLSProxy::Message::SIG_ALG_ECDSA_SHA1) {
346 if ($_ == TLSProxy::Message::OSSL_SIG_ALG_RSA_PKCS1_SHA224
347 || $_ == TLSProxy::Message::OSSL_SIG_ALG_DSA_SHA224
348 || $_ == TLSProxy::Message::OSSL_SIG_ALG_ECDSA_SHA224) {
357 sub modify_sigalgs_cert_filter
361 # We're only interested in the initial ClientHello
362 if ($proxy->flight != 0) {
366 foreach my $message (@{$proxy->message_list}) {
367 if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
369 # two byte length at front of sigs, then two-byte sigschemes
370 if ($testtype == SIGALGS_CERT_ALL) {
371 $sigs = pack "C26", 0x00, 0x18,
372 # rsa_pkcs_sha{256,512} rsa_pss_rsae_sha{256,512}
373 0x04, 0x01, 0x06, 0x01, 0x08, 0x04, 0x08, 0x06,
374 # ed25518 ed448 rsa_pss_pss_sha{256,512}
375 0x08, 0x07, 0x08, 0x08, 0x08, 0x09, 0x08, 0x0b,
376 # ecdsa_secp{256,512} rsa+sha1 ecdsa+sha1
377 0x04, 0x03, 0x06, 0x03, 0x02, 0x01, 0x02, 0x03;
378 } elsif ($testtype == SIGALGS_CERT_PKCS) {
379 $sigs = pack "C10", 0x00, 0x08,
380 # rsa_pkcs_sha{256,384,512,1}
381 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02, 0x01;
382 } elsif ($testtype == SIGALGS_CERT_INVALID) {
383 $sigs = pack "C4", 0x00, 0x02,
384 # unregistered codepoint
387 $message->set_extension(TLSProxy::Message::EXT_SIG_ALGS_CERT, $sigs);
393 sub modify_cert_verify_sigalg
397 # We're only interested in the CertificateVerify
398 if ($proxy->flight != 1) {
402 foreach my $message (@{$proxy->message_list}) {
403 if ($message->mt == TLSProxy::Message::MT_CERTIFICATE_VERIFY) {
404 $message->sigalg(TLSProxy::Message::SIG_ALG_RSA_PSS_PSS_SHA256);