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1 /* Copyright (c) 2016, Google Inc.
2  *
3  * Permission to use, copy, modify, and/or distribute this software for any
4  * purpose with or without fee is hereby granted, provided that the above
5  * copyright notice and this permission notice appear in all copies.
6  *
7  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14 
15 #include <algorithm>
16 #include <functional>
17 #include <string>
18 #include <vector>
19 
20 #include <gtest/gtest.h>
21 
22 #include <openssl/bio.h>
23 #include <openssl/bytestring.h>
24 #include <openssl/crypto.h>
25 #include <openssl/curve25519.h>
26 #include <openssl/digest.h>
27 #include <openssl/err.h>
28 #include <openssl/pem.h>
29 #include <openssl/pool.h>
30 #include <openssl/x509.h>
31 #include <openssl/x509v3.h>
32 
33 #include "../internal.h"
34 #include "../test/test_util.h"
35 #include "../x509v3/internal.h"
36 
37 
38 std::string GetTestData(const char *path);
39 
40 static const char kCrossSigningRootPEM[] =
41     "-----BEGIN CERTIFICATE-----\n"
42     "MIICcTCCAdqgAwIBAgIIagJHiPvE0MowDQYJKoZIhvcNAQELBQAwPDEaMBgGA1UE\n"
43     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxHjAcBgNVBAMTFUNyb3NzLXNpZ25pbmcgUm9v\n"
44     "dCBDQTAgFw0xNTAxMDEwMDAwMDBaGA8yMTAwMDEwMTAwMDAwMFowPDEaMBgGA1UE\n"
45     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxHjAcBgNVBAMTFUNyb3NzLXNpZ25pbmcgUm9v\n"
46     "dCBDQTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAwo3qFvSB9Zmlbpzn9wJp\n"
47     "ikI75Rxkatez8VkLqyxbOhPYl2Haz8F5p1gDG96dCI6jcLGgu3AKT9uhEQyyUko5\n"
48     "EKYasazSeA9CQrdyhPg0mkTYVETnPM1W/ebid1YtqQbq1CMWlq2aTDoSGAReGFKP\n"
49     "RTdXAbuAXzpCfi/d8LqV13UCAwEAAaN6MHgwDgYDVR0PAQH/BAQDAgIEMB0GA1Ud\n"
50     "JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAPBgNVHRMBAf8EBTADAQH/MBkGA1Ud\n"
51     "DgQSBBBHKHC7V3Z/3oLvEZx0RZRwMBsGA1UdIwQUMBKAEEcocLtXdn/egu8RnHRF\n"
52     "lHAwDQYJKoZIhvcNAQELBQADgYEAnglibsy6mGtpIXivtlcz4zIEnHw/lNW+r/eC\n"
53     "CY7evZTmOoOuC/x9SS3MF9vawt1HFUummWM6ZgErqVBOXIB4//ykrcCgf5ZbF5Hr\n"
54     "+3EFprKhBqYiXdD8hpBkrBoXwn85LPYWNd2TceCrx0YtLIprE2R5MB2RIq8y4Jk3\n"
55     "YFXvkME=\n"
56     "-----END CERTIFICATE-----\n";
57 
58 static const char kRootCAPEM[] =
59     "-----BEGIN CERTIFICATE-----\n"
60     "MIICVTCCAb6gAwIBAgIIAj5CwoHlWuYwDQYJKoZIhvcNAQELBQAwLjEaMBgGA1UE\n"
61     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxEDAOBgNVBAMTB1Jvb3QgQ0EwIBcNMTUwMTAx\n"
62     "MDAwMDAwWhgPMjEwMDAxMDEwMDAwMDBaMC4xGjAYBgNVBAoTEUJvcmluZ1NTTCBU\n"
63     "RVNUSU5HMRAwDgYDVQQDEwdSb290IENBMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB\n"
64     "iQKBgQDpDn8RDOZa5oaDcPZRBy4CeBH1siSSOO4mYgLHlPE+oXdqwI/VImi2XeJM\n"
65     "2uCFETXCknJJjYG0iJdrt/yyRFvZTQZw+QzGj+mz36NqhGxDWb6dstB2m8PX+plZ\n"
66     "w7jl81MDvUnWs8yiQ/6twgu5AbhWKZQDJKcNKCEpqa6UW0r5nwIDAQABo3oweDAO\n"
67     "BgNVHQ8BAf8EBAMCAgQwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMA8G\n"
68     "A1UdEwEB/wQFMAMBAf8wGQYDVR0OBBIEEEA31wH7QC+4HH5UBCeMWQEwGwYDVR0j\n"
69     "BBQwEoAQQDfXAftAL7gcflQEJ4xZATANBgkqhkiG9w0BAQsFAAOBgQDXylEK77Za\n"
70     "kKeY6ZerrScWyZhrjIGtHFu09qVpdJEzrk87k2G7iHHR9CAvSofCgEExKtWNS9dN\n"
71     "+9WiZp/U48iHLk7qaYXdEuO07No4BYtXn+lkOykE+FUxmA4wvOF1cTd2tdj3MzX2\n"
72     "kfGIBAYhzGZWhY3JbhIfTEfY1PNM1pWChQ==\n"
73     "-----END CERTIFICATE-----\n";
74 
75 static const char kRootCrossSignedPEM[] =
76     "-----BEGIN CERTIFICATE-----\n"
77     "MIICYzCCAcygAwIBAgIIAj5CwoHlWuYwDQYJKoZIhvcNAQELBQAwPDEaMBgGA1UE\n"
78     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxHjAcBgNVBAMTFUNyb3NzLXNpZ25pbmcgUm9v\n"
79     "dCBDQTAgFw0xNTAxMDEwMDAwMDBaGA8yMTAwMDEwMTAwMDAwMFowLjEaMBgGA1UE\n"
80     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxEDAOBgNVBAMTB1Jvb3QgQ0EwgZ8wDQYJKoZI\n"
81     "hvcNAQEBBQADgY0AMIGJAoGBAOkOfxEM5lrmhoNw9lEHLgJ4EfWyJJI47iZiAseU\n"
82     "8T6hd2rAj9UiaLZd4kza4IURNcKSckmNgbSIl2u3/LJEW9lNBnD5DMaP6bPfo2qE\n"
83     "bENZvp2y0Habw9f6mVnDuOXzUwO9SdazzKJD/q3CC7kBuFYplAMkpw0oISmprpRb\n"
84     "SvmfAgMBAAGjejB4MA4GA1UdDwEB/wQEAwICBDAdBgNVHSUEFjAUBggrBgEFBQcD\n"
85     "AQYIKwYBBQUHAwIwDwYDVR0TAQH/BAUwAwEB/zAZBgNVHQ4EEgQQQDfXAftAL7gc\n"
86     "flQEJ4xZATAbBgNVHSMEFDASgBBHKHC7V3Z/3oLvEZx0RZRwMA0GCSqGSIb3DQEB\n"
87     "CwUAA4GBAErTxYJ0en9HVRHAAr5OO5wuk5Iq3VMc79TMyQLCXVL8YH8Uk7KEwv+q\n"
88     "9MEKZv2eR/Vfm4HlXlUuIqfgUXbwrAYC/YVVX86Wnbpy/jc73NYVCq8FEZeO+0XU\n"
89     "90SWAPDdp+iL7aZdimnMtG1qlM1edmz8AKbrhN/R3IbA2CL0nCWV\n"
90     "-----END CERTIFICATE-----\n";
91 
92 static const char kIntermediatePEM[] =
93     "-----BEGIN CERTIFICATE-----\n"
94     "MIICXjCCAcegAwIBAgIJAKJMH+7rscPcMA0GCSqGSIb3DQEBCwUAMC4xGjAYBgNV\n"
95     "BAoTEUJvcmluZ1NTTCBURVNUSU5HMRAwDgYDVQQDEwdSb290IENBMCAXDTE1MDEw\n"
96     "MTAwMDAwMFoYDzIxMDAwMTAxMDAwMDAwWjA2MRowGAYDVQQKExFCb3JpbmdTU0wg\n"
97     "VEVTVElORzEYMBYGA1UEAxMPSW50ZXJtZWRpYXRlIENBMIGfMA0GCSqGSIb3DQEB\n"
98     "AQUAA4GNADCBiQKBgQC7YtI0l8ocTYJ0gKyXTtPL4iMJCNY4OcxXl48jkncVG1Hl\n"
99     "blicgNUa1r9m9YFtVkxvBinb8dXiUpEGhVg4awRPDcatlsBSEBuJkiZGYbRcAmSu\n"
100     "CmZYnf6u3aYQ18SU8WqVERPpE4cwVVs+6kwlzRw0+XDoZAczu8ZezVhCUc6NbQID\n"
101     "AQABo3oweDAOBgNVHQ8BAf8EBAMCAgQwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsG\n"
102     "AQUFBwMCMA8GA1UdEwEB/wQFMAMBAf8wGQYDVR0OBBIEEIwaaKi1dttdV3sfjRSy\n"
103     "BqMwGwYDVR0jBBQwEoAQQDfXAftAL7gcflQEJ4xZATANBgkqhkiG9w0BAQsFAAOB\n"
104     "gQCvnolNWEHuQS8PFVVyuLR+FKBeUUdrVbSfHSzTqNAqQGp0C9fk5oCzDq6ZgTfY\n"
105     "ESXM4cJhb3IAnW0UM0NFsYSKQJ50JZL2L3z5ZLQhHdbs4RmODGoC40BVdnJ4/qgB\n"
106     "aGSh09eQRvAVmbVCviDK2ipkWNegdyI19jFfNP5uIkGlYg==\n"
107     "-----END CERTIFICATE-----\n";
108 
109 static const char kIntermediateSelfSignedPEM[] =
110     "-----BEGIN CERTIFICATE-----\n"
111     "MIICZjCCAc+gAwIBAgIJAKJMH+7rscPcMA0GCSqGSIb3DQEBCwUAMDYxGjAYBgNV\n"
112     "BAoTEUJvcmluZ1NTTCBURVNUSU5HMRgwFgYDVQQDEw9JbnRlcm1lZGlhdGUgQ0Ew\n"
113     "IBcNMTUwMTAxMDAwMDAwWhgPMjEwMDAxMDEwMDAwMDBaMDYxGjAYBgNVBAoTEUJv\n"
114     "cmluZ1NTTCBURVNUSU5HMRgwFgYDVQQDEw9JbnRlcm1lZGlhdGUgQ0EwgZ8wDQYJ\n"
115     "KoZIhvcNAQEBBQADgY0AMIGJAoGBALti0jSXyhxNgnSArJdO08viIwkI1jg5zFeX\n"
116     "jyOSdxUbUeVuWJyA1RrWv2b1gW1WTG8GKdvx1eJSkQaFWDhrBE8Nxq2WwFIQG4mS\n"
117     "JkZhtFwCZK4KZlid/q7dphDXxJTxapURE+kThzBVWz7qTCXNHDT5cOhkBzO7xl7N\n"
118     "WEJRzo1tAgMBAAGjejB4MA4GA1UdDwEB/wQEAwICBDAdBgNVHSUEFjAUBggrBgEF\n"
119     "BQcDAQYIKwYBBQUHAwIwDwYDVR0TAQH/BAUwAwEB/zAZBgNVHQ4EEgQQjBpoqLV2\n"
120     "211Xex+NFLIGozAbBgNVHSMEFDASgBCMGmiotXbbXVd7H40UsgajMA0GCSqGSIb3\n"
121     "DQEBCwUAA4GBALcccSrAQ0/EqQBsx0ZDTUydHXXNP2DrUkpUKmAXIe8McqIVSlkT\n"
122     "6H4xz7z8VRKBo9j+drjjtCw2i0CQc8aOLxRb5WJ8eVLnaW2XRlUqAzhF0CrulfVI\n"
123     "E4Vs6ZLU+fra1WAuIj6qFiigRja+3YkZArG8tMA9vtlhTX/g7YBZIkqH\n"
124     "-----END CERTIFICATE-----\n";
125 
126 static const char kLeafPEM[] =
127     "-----BEGIN CERTIFICATE-----\n"
128     "MIICXjCCAcegAwIBAgIIWjO48ufpunYwDQYJKoZIhvcNAQELBQAwNjEaMBgGA1UE\n"
129     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxGDAWBgNVBAMTD0ludGVybWVkaWF0ZSBDQTAg\n"
130     "Fw0xNTAxMDEwMDAwMDBaGA8yMTAwMDEwMTAwMDAwMFowMjEaMBgGA1UEChMRQm9y\n"
131     "aW5nU1NMIFRFU1RJTkcxFDASBgNVBAMTC2V4YW1wbGUuY29tMIGfMA0GCSqGSIb3\n"
132     "DQEBAQUAA4GNADCBiQKBgQDD0U0ZYgqShJ7oOjsyNKyVXEHqeafmk/bAoPqY/h1c\n"
133     "oPw2E8KmeqiUSoTPjG5IXSblOxcqpbAXgnjPzo8DI3GNMhAf8SYNYsoH7gc7Uy7j\n"
134     "5x8bUrisGnuTHqkqH6d4/e7ETJ7i3CpR8bvK16DggEvQTudLipz8FBHtYhFakfdh\n"
135     "TwIDAQABo3cwdTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG\n"
136     "CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwGQYDVR0OBBIEEKN5pvbur7mlXjeMEYA0\n"
137     "4nUwGwYDVR0jBBQwEoAQjBpoqLV2211Xex+NFLIGozANBgkqhkiG9w0BAQsFAAOB\n"
138     "gQBj/p+JChp//LnXWC1k121LM/ii7hFzQzMrt70bny406SGz9jAjaPOX4S3gt38y\n"
139     "rhjpPukBlSzgQXFg66y6q5qp1nQTD1Cw6NkKBe9WuBlY3iYfmsf7WT8nhlT1CttU\n"
140     "xNCwyMX9mtdXdQicOfNjIGUCD5OLV5PgHFPRKiHHioBAhg==\n"
141     "-----END CERTIFICATE-----\n";
142 
143 static const char kLeafNoKeyUsagePEM[] =
144     "-----BEGIN CERTIFICATE-----\n"
145     "MIICNTCCAZ6gAwIBAgIJAIFQGaLQ0G2mMA0GCSqGSIb3DQEBCwUAMDYxGjAYBgNV\n"
146     "BAoTEUJvcmluZ1NTTCBURVNUSU5HMRgwFgYDVQQDEw9JbnRlcm1lZGlhdGUgQ0Ew\n"
147     "IBcNMTUwMTAxMDAwMDAwWhgPMjEwMDAxMDEwMDAwMDBaMDcxGjAYBgNVBAoTEUJv\n"
148     "cmluZ1NTTCBURVNUSU5HMRkwFwYDVQQDExBldmlsLmV4YW1wbGUuY29tMIGfMA0G\n"
149     "CSqGSIb3DQEBAQUAA4GNADCBiQKBgQDOKoZe75NPz77EOaMMl4/0s3PyQw++zJvp\n"
150     "ejHAxZiTPCJgMbEHLrSzNoHdopg+CLUH5bE4wTXM8w9Inv5P8OAFJt7gJuPUunmk\n"
151     "j+NoU3QfzOR6BroePcz1vXX9jyVHRs087M/sLqWRHu9IR+/A+UTcBaWaFiDVUxtJ\n"
152     "YOwFMwjNPQIDAQABo0gwRjAMBgNVHRMBAf8EAjAAMBkGA1UdDgQSBBBJfLEUWHq1\n"
153     "27rZ1AVx2J5GMBsGA1UdIwQUMBKAEIwaaKi1dttdV3sfjRSyBqMwDQYJKoZIhvcN\n"
154     "AQELBQADgYEALVKN2Y3LZJOtu6SxFIYKxbLaXhTGTdIjxipZhmbBRDFjbZjZZOTe\n"
155     "6Oo+VDNPYco4rBexK7umYXJyfTqoY0E8dbiImhTcGTEj7OAB3DbBomgU1AYe+t2D\n"
156     "uwBqh4Y3Eto+Zn4pMVsxGEfUpjzjZDel7bN1/oU/9KWPpDfywfUmjgk=\n"
157     "-----END CERTIFICATE-----\n";
158 
159 static const char kForgeryPEM[] =
160     "-----BEGIN CERTIFICATE-----\n"
161     "MIICZzCCAdCgAwIBAgIIdTlMzQoKkeMwDQYJKoZIhvcNAQELBQAwNzEaMBgGA1UE\n"
162     "ChMRQm9yaW5nU1NMIFRFU1RJTkcxGTAXBgNVBAMTEGV2aWwuZXhhbXBsZS5jb20w\n"
163     "IBcNMTUwMTAxMDAwMDAwWhgPMjEwMDAxMDEwMDAwMDBaMDoxGjAYBgNVBAoTEUJv\n"
164     "cmluZ1NTTCBURVNUSU5HMRwwGgYDVQQDExNmb3JnZXJ5LmV4YW1wbGUuY29tMIGf\n"
165     "MA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDADTwruBQZGb7Ay6s9HiYv5d1lwtEy\n"
166     "xQdA2Sy8Rn8uA20Q4KgqwVY7wzIZ+z5Butrsmwb70gdG1XU+yRaDeE7XVoW6jSpm\n"
167     "0sw35/5vJbTcL4THEFbnX0OPZnvpuZDFUkvVtq5kxpDWsVyM24G8EEq7kPih3Sa3\n"
168     "OMhXVXF8kso6UQIDAQABo3cwdTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI\n"
169     "KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwGQYDVR0OBBIEEEYJ/WHM\n"
170     "8p64erPWIg4/liwwGwYDVR0jBBQwEoAQSXyxFFh6tdu62dQFcdieRjANBgkqhkiG\n"
171     "9w0BAQsFAAOBgQA+zH7bHPElWRWJvjxDqRexmYLn+D3Aivs8XgXQJsM94W0EzSUf\n"
172     "DSLfRgaQwcb2gg2xpDFoG+W0vc6O651uF23WGt5JaFFJJxqjII05IexfCNhuPmp4\n"
173     "4UZAXPttuJXpn74IY1tuouaM06B3vXKZR+/ityKmfJvSwxacmFcK+2ziAg==\n"
174     "-----END CERTIFICATE-----\n";
175 
176 // kExamplePSSCert is an example RSA-PSS self-signed certificate, signed with
177 // the default hash functions.
178 static const char kExamplePSSCert[] =
179     "-----BEGIN CERTIFICATE-----\n"
180     "MIICYjCCAcagAwIBAgIJAI3qUyT6SIfzMBIGCSqGSIb3DQEBCjAFogMCAWowRTEL\n"
181     "MAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVy\n"
182     "bmV0IFdpZGdpdHMgUHR5IEx0ZDAeFw0xNDEwMDkxOTA5NTVaFw0xNTEwMDkxOTA5\n"
183     "NTVaMEUxCzAJBgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQK\n"
184     "DBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A\n"
185     "MIGJAoGBAPi4bIO0vNmoV8CltFl2jFQdeesiUgR+0zfrQf2D+fCmhRU0dXFahKg8\n"
186     "0u9aTtPel4rd/7vPCqqGkr64UOTNb4AzMHYTj8p73OxaymPHAyXvqIqDWHYg+hZ3\n"
187     "13mSYwFIGth7Z/FSVUlO1m5KXNd6NzYM3t2PROjCpywrta9kS2EHAgMBAAGjUDBO\n"
188     "MB0GA1UdDgQWBBTQQfuJQR6nrVrsNF1JEflVgXgfEzAfBgNVHSMEGDAWgBTQQfuJ\n"
189     "QR6nrVrsNF1JEflVgXgfEzAMBgNVHRMEBTADAQH/MBIGCSqGSIb3DQEBCjAFogMC\n"
190     "AWoDgYEASUy2RZcgNbNQZA0/7F+V1YTLEXwD16bm+iSVnzGwtexmQVEYIZG74K/w\n"
191     "xbdZQdTbpNJkp1QPjPfh0zsatw6dmt5QoZ8K8No0DjR9dgf+Wvv5WJvJUIQBoAVN\n"
192     "Z0IL+OQFz6+LcTHxD27JJCebrATXZA0wThGTQDm7crL+a+SujBY=\n"
193     "-----END CERTIFICATE-----\n";
194 
195 // kBadPSSCertPEM is a self-signed RSA-PSS certificate with bad parameters.
196 static const char kBadPSSCertPEM[] =
197     "-----BEGIN CERTIFICATE-----\n"
198     "MIIDdjCCAjqgAwIBAgIJANcwZLyfEv7DMD4GCSqGSIb3DQEBCjAxoA0wCwYJYIZI\n"
199     "AWUDBAIBoRowGAYJKoZIhvcNAQEIMAsGCWCGSAFlAwQCAaIEAgIA3jAnMSUwIwYD\n"
200     "VQQDDBxUZXN0IEludmFsaWQgUFNTIGNlcnRpZmljYXRlMB4XDTE1MTEwNDE2MDIz\n"
201     "NVoXDTE1MTIwNDE2MDIzNVowJzElMCMGA1UEAwwcVGVzdCBJbnZhbGlkIFBTUyBj\n"
202     "ZXJ0aWZpY2F0ZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMTaM7WH\n"
203     "qVCAGAIA+zL1KWvvASTrhlq+1ePdO7wsrWX2KiYoTYrJYTnxhLnn0wrHqApt79nL\n"
204     "IBG7cfShyZqFHOY/IzlYPMVt+gPo293gw96Fds5JBsjhjkyGnOyr9OUntFqvxDbT\n"
205     "IIFU7o9IdxD4edaqjRv+fegVE+B79pDk4s0ujsk6dULtCg9Rst0ucGFo19mr+b7k\n"
206     "dbfn8pZ72ZNDJPueVdrUAWw9oll61UcYfk75XdrLk6JlL41GrYHc8KlfXf43gGQq\n"
207     "QfrpHkg4Ih2cI6Wt2nhFGAzrlcorzLliQIUJRIhM8h4IgDfpBpaPdVQLqS2pFbXa\n"
208     "5eQjqiyJwak2vJ8CAwEAAaNQME4wHQYDVR0OBBYEFCt180N4oGUt5LbzBwQ4Ia+2\n"
209     "4V97MB8GA1UdIwQYMBaAFCt180N4oGUt5LbzBwQ4Ia+24V97MAwGA1UdEwQFMAMB\n"
210     "Af8wMQYJKoZIhvcNAQEKMCSgDTALBglghkgBZQMEAgGhDTALBgkqhkiG9w0BAQii\n"
211     "BAICAN4DggEBAAjBtm90lGxgddjc4Xu/nbXXFHVs2zVcHv/mqOZoQkGB9r/BVgLb\n"
212     "xhHrFZ2pHGElbUYPfifdS9ztB73e1d4J+P29o0yBqfd4/wGAc/JA8qgn6AAEO/Xn\n"
213     "plhFeTRJQtLZVl75CkHXgUGUd3h+ADvKtcBuW9dSUncaUrgNKR8u/h/2sMG38RWY\n"
214     "DzBddC/66YTa3r7KkVUfW7yqRQfELiGKdcm+bjlTEMsvS+EhHup9CzbpoCx2Fx9p\n"
215     "NPtFY3yEObQhmL1JyoCRWqBE75GzFPbRaiux5UpEkns+i3trkGssZzsOuVqHNTNZ\n"
216     "lC9+9hPHIoc9UMmAQNo1vGIW3NWVoeGbaJ8=\n"
217     "-----END CERTIFICATE-----\n";
218 
219 static const char kRSAKey[] =
220     "-----BEGIN RSA PRIVATE KEY-----\n"
221     "MIICXgIBAAKBgQDYK8imMuRi/03z0K1Zi0WnvfFHvwlYeyK9Na6XJYaUoIDAtB92\n"
222     "kWdGMdAQhLciHnAjkXLI6W15OoV3gA/ElRZ1xUpxTMhjP6PyY5wqT5r6y8FxbiiF\n"
223     "KKAnHmUcrgfVW28tQ+0rkLGMryRtrukXOgXBv7gcrmU7G1jC2a7WqmeI8QIDAQAB\n"
224     "AoGBAIBy09Fd4DOq/Ijp8HeKuCMKTHqTW1xGHshLQ6jwVV2vWZIn9aIgmDsvkjCe\n"
225     "i6ssZvnbjVcwzSoByhjN8ZCf/i15HECWDFFh6gt0P5z0MnChwzZmvatV/FXCT0j+\n"
226     "WmGNB/gkehKjGXLLcjTb6dRYVJSCZhVuOLLcbWIV10gggJQBAkEA8S8sGe4ezyyZ\n"
227     "m4e9r95g6s43kPqtj5rewTsUxt+2n4eVodD+ZUlCULWVNAFLkYRTBCASlSrm9Xhj\n"
228     "QpmWAHJUkQJBAOVzQdFUaewLtdOJoPCtpYoY1zd22eae8TQEmpGOR11L6kbxLQsk\n"
229     "aMly/DOnOaa82tqAGTdqDEZgSNmCeKKknmECQAvpnY8GUOVAubGR6c+W90iBuQLj\n"
230     "LtFp/9ihd2w/PoDwrHZaoUYVcT4VSfJQog/k7kjE4MYXYWL8eEKg3WTWQNECQQDk\n"
231     "104Wi91Umd1PzF0ijd2jXOERJU1wEKe6XLkYYNHWQAe5l4J4MWj9OdxFXAxIuuR/\n"
232     "tfDwbqkta4xcux67//khAkEAvvRXLHTaa6VFzTaiiO8SaFsHV3lQyXOtMrBpB5jd\n"
233     "moZWgjHvB2W9Ckn7sDqsPB+U2tyX0joDdQEyuiMECDY8oQ==\n"
234     "-----END RSA PRIVATE KEY-----\n";
235 
236 // kCRLTestRoot is a test root certificate. It has private key:
237 //
238 //     -----BEGIN RSA PRIVATE KEY-----
239 //     MIIEpAIBAAKCAQEAo16WiLWZuaymsD8n5SKPmxV1y6jjgr3BS/dUBpbrzd1aeFzN
240 //     lI8l2jfAnzUyp+I21RQ+nh/MhqjGElkTtK9xMn1Y+S9GMRh+5R/Du0iCb1tCZIPY
241 //     07Tgrb0KMNWe0v2QKVVruuYSgxIWodBfxlKO64Z8AJ5IbnWpuRqO6rctN9qUoMlT
242 //     IAB6dL4G0tDJ/PGFWOJYwOMEIX54bly2wgyYJVBKiRRt4f7n8H922qmvPNA9idmX
243 //     9G1VAtgV6x97XXi7ULORIQvn9lVQF6nTYDBJhyuPB+mLThbLP2o9orxGx7aCtnnB
244 //     ZUIxUvHNOI0FaSaZH7Fi0xsZ/GkG2HZe7ImPJwIDAQABAoIBAQCJF9MTHfHGkk+/
245 //     DwCXlA0Wg0e6hBuHl10iNobYkMWIl/xXjOknhYiqOqb181py76472SVC5ERprC+r
246 //     Lf0PXzqKuA117mnkwT2bYLCL9Skf8WEhoFLQNbVlloF6wYjqXcYgKYKh8HgQbZl4
247 //     aLg2YQl2NADTNABsUWj/4H2WEelsODVviqfFs725lFg9KHDI8zxAZXLzDt/M9uVL
248 //     GxJiX12tr0AwaeAFZ1oPM/y+LznM3N3+Ht3jHHw3jZ/u8Z1RdAmdpu3bZ6tbwGBr
249 //     9edsH5rKkm9aBvMrY7eX5VHqaqyRNFyG152ZOJh4XiiFG7EmgTPCpaHo50Y018Re
250 //     grVtk+FBAoGBANY3lY+V8ZOwMxSHes+kTnoimHO5Ob7nxrOC71i27x+4HHsYUeAr
251 //     /zOOghiDIn+oNkuiX5CIOWZKx159Bp65CPpCbTb/fh+HYnSgXFgCw7XptycO7LXM
252 //     5GwR5jSfpfzBFdYxjxoUzDMFBwTEYRTm0HkUHkH+s+ajjw5wqqbcGLcfAoGBAMM8
253 //     DKW6Tb66xsf708f0jonAjKYTLZ+WOcwsBEWSFHoY8dUjvW5gqx5acHTEsc5ZTeh4
254 //     BCFLa+Mn9cuJWVJNs09k7Xb2PNl92HQ4GN2vbdkJhExbkT6oLDHg1hVD0w8KLfz1
255 //     lTAW6pS+6CdOHMEJpvqx89EgU/1GgIQ1fXYczE75AoGAKeJoXdDFkUjsU+FBhAPu
256 //     TDcjc80Nm2QaF9NMFR5/lsYa236f06MGnQAKM9zADBHJu/Qdl1brUjLg1HrBppsr
257 //     RDNkw1IlSOjhuUf5hkPUHGd8Jijm440SRIcjabqla8wdBupdvo2+d2NOQgJbsQiI
258 //     ToQ+fkzcxAXK3Nnuo/1436UCgYBjLH7UNOZHS8OsVM0I1r8NVKVdu4JCfeJQR8/H
259 //     s2P5ffBir+wLRMnH+nMDreMQiibcPxMCArkERAlE4jlgaJ38Z62E76KLbLTmnJRt
260 //     EC9Bv+bXjvAiHvWMRMUbOj/ddPNVez7Uld+FvdBaHwDWQlvzHzBWfBCOKSEhh7Z6
261 //     qDhUqQKBgQDPMDx2i5rfmQp3imV9xUcCkIRsyYQVf8Eo7NV07IdUy/otmksgn4Zt
262 //     Lbf3v2dvxOpTNTONWjp2c+iUQo8QxJCZr5Sfb21oQ9Ktcrmc/CY7LeBVDibXwxdM
263 //     vRG8kBzvslFWh7REzC3u06GSVhyKDfW93kN2cKVwGoahRlhj7oHuZQ==
264 //     -----END RSA PRIVATE KEY-----
265 static const char kCRLTestRoot[] =
266     "-----BEGIN CERTIFICATE-----\n"
267     "MIIDbzCCAlegAwIBAgIJAODri7v0dDUFMA0GCSqGSIb3DQEBCwUAME4xCzAJBgNV\n"
268     "BAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBW\n"
269     "aWV3MRIwEAYDVQQKDAlCb3JpbmdTU0wwHhcNMTYwOTI2MTUwNjI2WhcNMjYwOTI0\n"
270     "MTUwNjI2WjBOMQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQG\n"
271     "A1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJQm9yaW5nU1NMMIIBIjANBgkq\n"
272     "hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo16WiLWZuaymsD8n5SKPmxV1y6jjgr3B\n"
273     "S/dUBpbrzd1aeFzNlI8l2jfAnzUyp+I21RQ+nh/MhqjGElkTtK9xMn1Y+S9GMRh+\n"
274     "5R/Du0iCb1tCZIPY07Tgrb0KMNWe0v2QKVVruuYSgxIWodBfxlKO64Z8AJ5IbnWp\n"
275     "uRqO6rctN9qUoMlTIAB6dL4G0tDJ/PGFWOJYwOMEIX54bly2wgyYJVBKiRRt4f7n\n"
276     "8H922qmvPNA9idmX9G1VAtgV6x97XXi7ULORIQvn9lVQF6nTYDBJhyuPB+mLThbL\n"
277     "P2o9orxGx7aCtnnBZUIxUvHNOI0FaSaZH7Fi0xsZ/GkG2HZe7ImPJwIDAQABo1Aw\n"
278     "TjAdBgNVHQ4EFgQUWPt3N5cZ/CRvubbrkqfBnAqhq94wHwYDVR0jBBgwFoAUWPt3\n"
279     "N5cZ/CRvubbrkqfBnAqhq94wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOC\n"
280     "AQEAORu6M0MOwXy+3VEBwNilfTxyqDfruQsc1jA4PT8Oe8zora1WxE1JB4q2FJOz\n"
281     "EAuM3H/NXvEnBuN+ITvKZAJUfm4NKX97qmjMJwLKWe1gVv+VQTr63aR7mgWJReQN\n"
282     "XdMztlVeZs2dppV6uEg3ia1X0G7LARxGpA9ETbMyCpb39XxlYuTClcbA5ftDN99B\n"
283     "3Xg9KNdd++Ew22O3HWRDvdDpTO/JkzQfzi3sYwUtzMEonENhczJhGf7bQMmvL/w5\n"
284     "24Wxj4Z7KzzWIHsNqE/RIs6RV3fcW61j/mRgW2XyoWnMVeBzvcJr9NXp4VQYmFPw\n"
285     "amd8GKMZQvP0ufGnUn7D7uartA==\n"
286     "-----END CERTIFICATE-----\n";
287 
288 static const char kCRLTestLeaf[] =
289     "-----BEGIN CERTIFICATE-----\n"
290     "MIIDkDCCAnigAwIBAgICEAAwDQYJKoZIhvcNAQELBQAwTjELMAkGA1UEBhMCVVMx\n"
291     "EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEjAQ\n"
292     "BgNVBAoMCUJvcmluZ1NTTDAeFw0xNjA5MjYxNTA4MzFaFw0xNzA5MjYxNTA4MzFa\n"
293     "MEsxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRIwEAYDVQQKDAlC\n"
294     "b3JpbmdTU0wxEzARBgNVBAMMCmJvcmluZy5zc2wwggEiMA0GCSqGSIb3DQEBAQUA\n"
295     "A4IBDwAwggEKAoIBAQDc5v1S1M0W+QWM+raWfO0LH8uvqEwuJQgODqMaGnSlWUx9\n"
296     "8iQcnWfjyPja3lWg9K62hSOFDuSyEkysKHDxijz5R93CfLcfnVXjWQDJe7EJTTDP\n"
297     "ozEvxN6RjAeYv7CF000euYr3QT5iyBjg76+bon1p0jHZBJeNPP1KqGYgyxp+hzpx\n"
298     "e0gZmTlGAXd8JQK4v8kpdYwD6PPifFL/jpmQpqOtQmH/6zcLjY4ojmqpEdBqIKIX\n"
299     "+saA29hMq0+NK3K+wgg31RU+cVWxu3tLOIiesETkeDgArjWRS1Vkzbi4v9SJxtNu\n"
300     "OZuAxWiynRJw3JwH/OFHYZIvQqz68ZBoj96cepjPAgMBAAGjezB5MAkGA1UdEwQC\n"
301     "MAAwLAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVkIENlcnRpZmljYXRl\n"
302     "MB0GA1UdDgQWBBTGn0OVVh/aoYt0bvEKG+PIERqnDzAfBgNVHSMEGDAWgBRY+3c3\n"
303     "lxn8JG+5tuuSp8GcCqGr3jANBgkqhkiG9w0BAQsFAAOCAQEAd2nM8gCQN2Dc8QJw\n"
304     "XSZXyuI3DBGGCHcay/3iXu0JvTC3EiQo8J6Djv7WLI0N5KH8mkm40u89fJAB2lLZ\n"
305     "ShuHVtcC182bOKnePgwp9CNwQ21p0rDEu/P3X46ZvFgdxx82E9xLa0tBB8PiPDWh\n"
306     "lV16jbaKTgX5AZqjnsyjR5o9/mbZVupZJXx5Syq+XA8qiJfstSYJs4KyKK9UOjql\n"
307     "ICkJVKpi2ahDBqX4MOH4SLfzVk8pqSpviS6yaA1RXqjpkxiN45WWaXDldVHMSkhC\n"
308     "5CNXsXi4b1nAntu89crwSLA3rEwzCWeYj+BX7e1T9rr3oJdwOU/2KQtW1js1yQUG\n"
309     "tjJMFw==\n"
310     "-----END CERTIFICATE-----\n";
311 
312 static const char kBasicCRL[] =
313     "-----BEGIN X509 CRL-----\n"
314     "MIIBpzCBkAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
315     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n"
316     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoA4wDDAKBgNV\n"
317     "HRQEAwIBATANBgkqhkiG9w0BAQsFAAOCAQEAnrBKKgvd9x9zwK9rtUvVeFeJ7+LN\n"
318     "ZEAc+a5oxpPNEsJx6hXoApYEbzXMxuWBQoCs5iEBycSGudct21L+MVf27M38KrWo\n"
319     "eOkq0a2siqViQZO2Fb/SUFR0k9zb8xl86Zf65lgPplALun0bV/HT7MJcl04Tc4os\n"
320     "dsAReBs5nqTGNEd5AlC1iKHvQZkM//MD51DspKnDpsDiUVi54h9C1SpfZmX8H2Vv\n"
321     "diyu0fZ/bPAM3VAGawatf/SyWfBMyKpoPXEG39oAzmjjOj8en82psn7m474IGaho\n"
322     "/vBbhl1ms5qQiLYPjm4YELtnXQoFyC72tBjbdFd/ZE9k4CNKDbxFUXFbkw==\n"
323     "-----END X509 CRL-----\n";
324 
325 static const char kRevokedCRL[] =
326     "-----BEGIN X509 CRL-----\n"
327     "MIIBvjCBpwIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
328     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n"
329     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEyNDRaFw0xNjEwMjYxNTEyNDRaMBUwEwICEAAX\n"
330     "DTE2MDkyNjE1MTIyNlqgDjAMMAoGA1UdFAQDAgECMA0GCSqGSIb3DQEBCwUAA4IB\n"
331     "AQCUGaM4DcWzlQKrcZvI8TMeR8BpsvQeo5BoI/XZu2a8h//PyRyMwYeaOM+3zl0d\n"
332     "sjgCT8b3C1FPgT+P2Lkowv7rJ+FHJRNQkogr+RuqCSPTq65ha4WKlRGWkMFybzVH\n"
333     "NloxC+aU3lgp/NlX9yUtfqYmJek1CDrOOGPrAEAwj1l/BUeYKNGqfBWYJQtPJu+5\n"
334     "OaSvIYGpETCZJscUWODmLEb/O3DM438vLvxonwGqXqS0KX37+CHpUlyhnSovxXxp\n"
335     "Pz4aF+L7OtczxL0GYtD2fR9B7TDMqsNmHXgQrixvvOY7MUdLGbd4RfJL3yA53hyO\n"
336     "xzfKY2TzxLiOmctG0hXFkH5J\n"
337     "-----END X509 CRL-----\n";
338 
339 static const char kBadIssuerCRL[] =
340     "-----BEGIN X509 CRL-----\n"
341     "MIIBwjCBqwIBATANBgkqhkiG9w0BAQsFADBSMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
342     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEWMBQGA1UECgwN\n"
343     "Tm90IEJvcmluZ1NTTBcNMTYwOTI2MTUxMjQ0WhcNMTYxMDI2MTUxMjQ0WjAVMBMC\n"
344     "AhAAFw0xNjA5MjYxNTEyMjZaoA4wDDAKBgNVHRQEAwIBAjANBgkqhkiG9w0BAQsF\n"
345     "AAOCAQEAlBmjOA3Fs5UCq3GbyPEzHkfAabL0HqOQaCP12btmvIf/z8kcjMGHmjjP\n"
346     "t85dHbI4Ak/G9wtRT4E/j9i5KML+6yfhRyUTUJKIK/kbqgkj06uuYWuFipURlpDB\n"
347     "cm81RzZaMQvmlN5YKfzZV/clLX6mJiXpNQg6zjhj6wBAMI9ZfwVHmCjRqnwVmCUL\n"
348     "TybvuTmkryGBqREwmSbHFFjg5ixG/ztwzON/Ly78aJ8Bql6ktCl9+/gh6VJcoZ0q\n"
349     "L8V8aT8+Ghfi+zrXM8S9BmLQ9n0fQe0wzKrDZh14EK4sb7zmOzFHSxm3eEXyS98g\n"
350     "Od4cjsc3ymNk88S4jpnLRtIVxZB+SQ==\n"
351     "-----END X509 CRL-----\n";
352 
353 // kKnownCriticalCRL is kBasicCRL but with a critical issuing distribution point
354 // extension.
355 static const char kKnownCriticalCRL[] =
356     "-----BEGIN X509 CRL-----\n"
357     "MIIBujCBowIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
358     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n"
359     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCEwHzAKBgNV\n"
360     "HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wDQYJKoZIhvcNAQELBQADggEBAA+3\n"
361     "i+5e5Ub8sccfgOBs6WVJFI9c8gvJjrJ8/dYfFIAuCyeocs7DFXn1n13CRZ+URR/Q\n"
362     "mVWgU28+xeusuSPYFpd9cyYTcVyNUGNTI3lwgcE/yVjPaOmzSZKdPakApRxtpKKQ\n"
363     "NN/56aQz3bnT/ZSHQNciRB8U6jiD9V30t0w+FDTpGaG+7bzzUH3UVF9xf9Ctp60A\n"
364     "3mfLe0scas7owSt4AEFuj2SPvcE7yvdOXbu+IEv21cEJUVExJAbhvIweHXh6yRW+\n"
365     "7VVeiNzdIjkZjyTmAzoXGha4+wbxXyBRbfH+XWcO/H+8nwyG8Gktdu2QB9S9nnIp\n"
366     "o/1TpfOMSGhMyMoyPrk=\n"
367     "-----END X509 CRL-----\n";
368 
369 // kUnknownCriticalCRL is kBasicCRL but with an unknown critical extension.
370 static const char kUnknownCriticalCRL[] =
371     "-----BEGIN X509 CRL-----\n"
372     "MIIBvDCBpQIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
373     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n"
374     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCMwITAKBgNV\n"
375     "HRQEAwIBATATBgwqhkiG9xIEAYS3CQABAf8EADANBgkqhkiG9w0BAQsFAAOCAQEA\n"
376     "GvBP0xqL509InMj/3493YVRV+ldTpBv5uTD6jewzf5XdaxEQ/VjTNe5zKnxbpAib\n"
377     "Kf7cwX0PMSkZjx7k7kKdDlEucwVvDoqC+O9aJcqVmM6GDyNb9xENxd0XCXja6MZC\n"
378     "yVgP4AwLauB2vSiEprYJyI1APph3iAEeDm60lTXX/wBM/tupQDDujKh2GPyvBRfJ\n"
379     "+wEDwGg3ICwvu4gO4zeC5qnFR+bpL9t5tOMAQnVZ0NWv+k7mkd2LbHdD44dxrfXC\n"
380     "nhtfERx99SDmC/jtUAJrGhtCO8acr7exCeYcduN7KKCm91OeCJKK6OzWst0Og1DB\n"
381     "kwzzU2rL3G65CrZ7H0SZsQ==\n"
382     "-----END X509 CRL-----\n";
383 
384 // kUnknownCriticalCRL2 is kBasicCRL but with a critical issuing distribution
385 // point extension followed by an unknown critical extension
386 static const char kUnknownCriticalCRL2[] =
387     "-----BEGIN X509 CRL-----\n"
388     "MIIBzzCBuAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n"
389     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n"
390     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoDYwNDAKBgNV\n"
391     "HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wEwYMKoZIhvcSBAGEtwkAAQH/BAAw\n"
392     "DQYJKoZIhvcNAQELBQADggEBACTcpQC8jXL12JN5YzOcQ64ubQIe0XxRAd30p7qB\n"
393     "BTXGpgqBjrjxRfLms7EBYodEXB2oXMsDq3km0vT1MfYdsDD05S+SQ9CDsq/pUfaC\n"
394     "E2WNI5p8WircRnroYvbN2vkjlRbMd1+yNITohXYXCJwjEOAWOx3XIM10bwPYBv4R\n"
395     "rDobuLHoMgL3yHgMHmAkP7YpkBucNqeBV8cCdeAZLuhXFWi6yfr3r/X18yWbC/r2\n"
396     "2xXdkrSqXLFo7ToyP8YKTgiXpya4x6m53biEYwa2ULlas0igL6DK7wjYZX95Uy7H\n"
397     "GKljn9weIYiMPV/BzGymwfv2EW0preLwtyJNJPaxbdin6Jc=\n"
398     "-----END X509 CRL-----\n";
399 
400 // kEd25519Cert is a self-signed Ed25519 certificate.
401 static const char kEd25519Cert[] =
402     "-----BEGIN CERTIFICATE-----\n"
403     "MIIBkTCCAUOgAwIBAgIJAJwooam0UCDmMAUGAytlcDBFMQswCQYDVQQGEwJBVTET\n"
404     "MBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0cyBQ\n"
405     "dHkgTHRkMB4XDTE0MDQyMzIzMjE1N1oXDTE0MDUyMzIzMjE1N1owRTELMAkGA1UE\n"
406     "BhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdp\n"
407     "ZGdpdHMgUHR5IEx0ZDAqMAUGAytlcAMhANdamAGCsQq31Uv+08lkBzoO4XLz2qYj\n"
408     "Ja8CGmj3B1Eao1AwTjAdBgNVHQ4EFgQUoux7eV+fJK2v3ah6QPU/lj1/+7UwHwYD\n"
409     "VR0jBBgwFoAUoux7eV+fJK2v3ah6QPU/lj1/+7UwDAYDVR0TBAUwAwEB/zAFBgMr\n"
410     "ZXADQQBuCzqji8VP9xU8mHEMjXGChX7YP5J664UyVKHKH9Z1u4wEbB8dJ3ScaWSL\n"
411     "r+VHVKUhsrvcdCelnXRrrSD7xWAL\n"
412     "-----END CERTIFICATE-----\n";
413 
414 // kEd25519CertNull is an invalid self-signed Ed25519 with an explicit NULL in
415 // the signature algorithm.
416 static const char kEd25519CertNull[] =
417     "-----BEGIN CERTIFICATE-----\n"
418     "MIIBlTCCAUWgAwIBAgIJAJwooam0UCDmMAcGAytlcAUAMEUxCzAJBgNVBAYTAkFV\n"
419     "MRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRz\n"
420     "IFB0eSBMdGQwHhcNMTQwNDIzMjMyMTU3WhcNMTQwNTIzMjMyMTU3WjBFMQswCQYD\n"
421     "VQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJuZXQg\n"
422     "V2lkZ2l0cyBQdHkgTHRkMCowBQYDK2VwAyEA11qYAYKxCrfVS/7TyWQHOg7hcvPa\n"
423     "piMlrwIaaPcHURqjUDBOMB0GA1UdDgQWBBSi7Ht5X58kra/dqHpA9T+WPX/7tTAf\n"
424     "BgNVHSMEGDAWgBSi7Ht5X58kra/dqHpA9T+WPX/7tTAMBgNVHRMEBTADAQH/MAcG\n"
425     "AytlcAUAA0EA70uefNocdJohkKPNROKVyBuBD3LXMyvmdTklsaxSRY3PcZdOohlr\n"
426     "recgVPpVS7B+d9g4EwtZXIh4lodTBDHBBw==\n"
427     "-----END CERTIFICATE-----\n";
428 
429 // kSANTypesLeaf is a leaf certificate (signed by |kSANTypesRoot|) which
430 // contains SANS for example.com, test@example.com, 127.0.0.1, and
431 // https://example.com/. (The latter is useless for now since crypto/x509
432 // doesn't deal with URI SANs directly.)
433 static const char kSANTypesLeaf[] =
434     "-----BEGIN CERTIFICATE-----\n"
435     "MIIClzCCAgCgAwIBAgIJAOjwnT/iW+qmMA0GCSqGSIb3DQEBCwUAMCsxFzAVBgNV\n"
436     "BAoTDkJvcmluZ1NTTCBUZXN0MRAwDgYDVQQDEwdSb290IENBMB4XDTE1MDEwMTAw\n"
437     "MDAwMFoXDTI1MDEwMTAwMDAwMFowLzEXMBUGA1UEChMOQm9yaW5nU1NMIFRlc3Qx\n"
438     "FDASBgNVBAMTC2V4YW1wbGUuY29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB\n"
439     "gQDbRn2TLhInBki8Bighq37EtqJd/h5SRYh6NkelCA2SQlvCgcC+l3mYQPtPbRT9\n"
440     "KxOLwqUuZ9jUCZ7WIji3Sgt0cyvCNPHRk+WW2XR781ifbGE8wLBB1NkrKyQjd1sc\n"
441     "O711Xc4gVM+hY4cdHiTE8x0aUIuqthRD7ZendWL0FMhS1wIDAQABo4G+MIG7MA4G\n"
442     "A1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYD\n"
443     "VR0TAQH/BAIwADAZBgNVHQ4EEgQQn5EWH0NDPkmm3m22gNefYDAbBgNVHSMEFDAS\n"
444     "gBBAN9cB+0AvuBx+VAQnjFkBMEQGA1UdEQQ9MDuCC2V4YW1wbGUuY29tgRB0ZXN0\n"
445     "QGV4YW1wbGUuY29thwR/AAABhhRodHRwczovL2V4YW1wbGUuY29tLzANBgkqhkiG\n"
446     "9w0BAQsFAAOBgQBtwJvY6+Tk6D6DOtDVaNoJ5y8E25CCuE/Ga4OuIcYJas+yLckf\n"
447     "dZwUV3GUG2oBXl2MrpUFxXd4hKBO1CmlBY+hZEeIx0Yp6QWK9P/vnZeydOTP26mk\n"
448     "jusJ2PqSmtKNU1Zcaba4d29oFejmOAfeguhR8AHpsc/zHEaS5Q9cJsuJcw==\n"
449     "-----END CERTIFICATE-----\n";
450 
451 // -----BEGIN RSA PRIVATE KEY-----
452 // MIICWwIBAAKBgQDbRn2TLhInBki8Bighq37EtqJd/h5SRYh6NkelCA2SQlvCgcC+
453 // l3mYQPtPbRT9KxOLwqUuZ9jUCZ7WIji3Sgt0cyvCNPHRk+WW2XR781ifbGE8wLBB
454 // 1NkrKyQjd1scO711Xc4gVM+hY4cdHiTE8x0aUIuqthRD7ZendWL0FMhS1wIDAQAB
455 // AoGACwf7z0i1DxOI2zSwFimLghfyCSp8mgT3fbZ3Wj0SebYu6ZUffjceneM/AVrq
456 // gGYHYLOVHcWJqfkl7X3hPo9SDhzLx0mM545/q21ZWCwjhswH7WiCEqV2/zeDO9WU
457 // NIO1VU0VoLm0AQ7ZvwnyB+fpgF9kkkDtbBJW7XWrfNVtlnECQQD97YENpEJ3X1kj
458 // 3rrkrHWDkKAyoWWY1i8Fm7LnganC9Bv6AVwgn5ZlE/479aWHF8vbOFEA3pFPiNZJ
459 // t9FTCfpJAkEA3RCXjGI0Y6GALFLwEs+nL/XZAfJaIpJEZVLCVosYQOSaMS4SchfC
460 // GGYVquT7ZgKk9uvz89Fg87OtBMWS9lrkHwJADGkGLKeBhBoJ3kHtem2fVK3F1pOi
461 // xoR5SdnhNYVVyaxqjZ5xZTrHe+stOrr3uxGDqhQniVZXXb6/Ul0Egv1y2QJAVg/h
462 // kAujba4wIhFf2VLyOZ+yjil1ocPj0LZ5Zgvcs1bMGJ1hHP3W2HzVrqRaowoggui1
463 // HpTC891dXGA2qKYV7QJAFDmT2A7OVvh3y4AEgzVwHrDmCMwMHKjCIntS7fjxrJnF
464 // YvJUG1zoHwUVrxxbR3DbpTODlktLcl/0b97D0IkH3w==
465 // -----END RSA PRIVATE KEY-----
466 
467 static const char kSANTypesRoot[] =
468     "-----BEGIN CERTIFICATE-----\n"
469     "MIICTTCCAbagAwIBAgIIAj5CwoHlWuYwDQYJKoZIhvcNAQELBQAwKzEXMBUGA1UE\n"
470     "ChMOQm9yaW5nU1NMIFRlc3QxEDAOBgNVBAMTB1Jvb3QgQ0EwHhcNMTUwMTAxMDAw\n"
471     "MDAwWhcNMjUwMTAxMDAwMDAwWjArMRcwFQYDVQQKEw5Cb3JpbmdTU0wgVGVzdDEQ\n"
472     "MA4GA1UEAxMHUm9vdCBDQTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA6Q5/\n"
473     "EQzmWuaGg3D2UQcuAngR9bIkkjjuJmICx5TxPqF3asCP1SJotl3iTNrghRE1wpJy\n"
474     "SY2BtIiXa7f8skRb2U0GcPkMxo/ps9+jaoRsQ1m+nbLQdpvD1/qZWcO45fNTA71J\n"
475     "1rPMokP+rcILuQG4VimUAySnDSghKamulFtK+Z8CAwEAAaN6MHgwDgYDVR0PAQH/\n"
476     "BAQDAgIEMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAPBgNVHRMBAf8E\n"
477     "BTADAQH/MBkGA1UdDgQSBBBAN9cB+0AvuBx+VAQnjFkBMBsGA1UdIwQUMBKAEEA3\n"
478     "1wH7QC+4HH5UBCeMWQEwDQYJKoZIhvcNAQELBQADgYEAc4N6hTE62/3gwg+kyc2f\n"
479     "c/Jj1mHrOt+0NRaBnmvbmNpsEjHS96Ef4Wt/ZlPXPkkv1C1VosJnOIMF3Q522wRH\n"
480     "bqaxARldS12VAa3gcWisDWD+SqSyDxjyojz0XDiJkTrFuCTCUiZO+1GLB7SO10Ms\n"
481     "d5YVX0c90VMnUhF/dlrqS9U=\n"
482     "-----END CERTIFICATE-----\n";
483 
484 // -----BEGIN RSA PRIVATE KEY-----
485 // MIICXAIBAAKBgQDpDn8RDOZa5oaDcPZRBy4CeBH1siSSOO4mYgLHlPE+oXdqwI/V
486 // Imi2XeJM2uCFETXCknJJjYG0iJdrt/yyRFvZTQZw+QzGj+mz36NqhGxDWb6dstB2
487 // m8PX+plZw7jl81MDvUnWs8yiQ/6twgu5AbhWKZQDJKcNKCEpqa6UW0r5nwIDAQAB
488 // AoGALEF5daZqc+aEsp8X1yky3nsoheyPL0kqSBWii33IFemZgKcSaRnAoqjPWWLS
489 // 8dHj0I/4rej2MW8iuezVSpDak9tK5boHORC3w4p/wifkizQkLt1DANxTVbzcKvrt
490 // aZ7LjVaKkhjRJbLddniowFHkkWVbUccjvzcUd7Y2VuLbAhECQQDq4FE88aHio8zg
491 // bxSd0PwjEFwLYQTR19u812SoR8PmR6ofIL+pDwOV+fVs+OGcAAOgkhIukOrksQ4A
492 // 1cKtnyhXAkEA/gRI+u3tZ7UE1twIkBfZ6IvCdRodkPqHAYIxMRLzL+MhyZt4MEGc
493 // Ngb/F6U9/WOBFnoR/PI7IwE3ejutzKcL+QJBAKh+6eilk7QKPETZi1m3/dmNt+p1
494 // 3EZJ65pqjwxmB3Rg/vs7vCMk4TarTdSyKu+F1xRPFfoP/mK3Xctdjj6NyhsCQAYF
495 // 7/0TOzfkUPMPUJyqFB6xgbDpJ55ScnUUsznoqx+NkTWInDb4t02IqO/UmT2y6FKy
496 // Hk8TJ1fTJY+ebqaVp3ECQApx9gQ+n0zIhx97FMUuiRse73xkcW4+pZ8nF+8DmeQL
497 // /JKuuFGmzkG+rUbXFmo/Zg2ozVplw71NnQJ4znPsf7A=
498 // -----END RSA PRIVATE KEY-----
499 
500 // The following four certificates were generated with this Go program, varying
501 // |includeNetscapeExtension| and defining rootKeyPEM and rootCertPEM to be
502 // strings containing the kSANTypesRoot, above.
503 
504 // package main
505 
506 // import (
507 //     "crypto/ecdsa"
508 //     "crypto/elliptic"
509 //     "crypto/rand"
510 //     "crypto/x509"
511 //     "crypto/x509/pkix"
512 //     "encoding/asn1"
513 //     "encoding/pem"
514 //     "math/big"
515 //     "os"
516 //     "time"
517 // )
518 
519 // const includeNetscapeExtension = true
520 
521 // func main() {
522 //     block, _ := pem.Decode([]byte(rootKeyPEM))
523 //     rootPriv, _ := x509.ParsePKCS1PrivateKey(block.Bytes)
524 //     block, _ = pem.Decode([]byte(rootCertPEM))
525 //     root, _ := x509.ParseCertificate(block.Bytes)
526 
527 //     interTemplate := &x509.Certificate{
528 //         SerialNumber: big.NewInt(2),
529 //         Subject: pkix.Name{
530 //             CommonName: "No Basic Constraints (Netscape)",
531 //         },
532 //         NotBefore: time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
533 //         NotAfter:  time.Date(2099, time.January, 1, 0, 0, 0, 0, time.UTC),
534 //     }
535 
536 //     if includeNetscapeExtension {
537 //         interTemplate.ExtraExtensions = []pkix.Extension{
538 //             pkix.Extension{
539 //                 Id:    asn1.ObjectIdentifier([]int{2, 16, 840, 1, 113730, 1, 1}),
540 //                 Value: []byte{0x03, 0x02, 2, 0x04},
541 //             },
542 //         }
543 //     } else {
544 //         interTemplate.KeyUsage = x509.KeyUsageCertSign
545 //     }
546 
547 //     interKey, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
548 
549 //     interDER, err := x509.CreateCertificate(rand.Reader, interTemplate, root, &interKey.PublicKey, rootPriv)
550 //     if err != nil {
551 //         panic(err)
552 //     }
553 
554 //     pem.Encode(os.Stdout, &pem.Block{Type: "CERTIFICATE", Bytes: interDER})
555 
556 //     inter, _ := x509.ParseCertificate(interDER)
557 
558 //     leafTemplate := &x509.Certificate{
559 //         SerialNumber: big.NewInt(3),
560 //         Subject: pkix.Name{
561 //             CommonName: "Leaf from CA with no Basic Constraints",
562 //         },
563 //         NotBefore:             time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
564 //         NotAfter:              time.Date(2099, time.January, 1, 0, 0, 0, 0, time.UTC),
565 //         BasicConstraintsValid: true,
566 //     }
567 //     leafKey, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
568 
569 //     leafDER, err := x509.CreateCertificate(rand.Reader, leafTemplate, inter, &leafKey.PublicKey, interKey)
570 //     if err != nil {
571 //         panic(err)
572 //     }
573 
574 //     pem.Encode(os.Stdout, &pem.Block{Type: "CERTIFICATE", Bytes: leafDER})
575 // }
576 
577 // kNoBasicConstraintsCertSignIntermediate doesn't have isCA set, but contains
578 // certSign in the keyUsage.
579 static const char kNoBasicConstraintsCertSignIntermediate[] =
580     "-----BEGIN CERTIFICATE-----\n"
581     "MIIBqjCCAROgAwIBAgIBAjANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
582     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
583     "MDk5MDEwMTAwMDAwMFowHzEdMBsGA1UEAxMUTm8gQmFzaWMgQ29uc3RyYWludHMw\n"
584     "WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASEFMblfxIEDO8My7wHtHWTuDzNyID1\n"
585     "OsPkMGkn32O/pSyXxXuAqDeFoMVffUMTyfm8JcYugSEbrv2qEXXM4bZRoy8wLTAO\n"
586     "BgNVHQ8BAf8EBAMCAgQwGwYDVR0jBBQwEoAQQDfXAftAL7gcflQEJ4xZATANBgkq\n"
587     "hkiG9w0BAQsFAAOBgQC1Lh6hIAm3K5kRh5iIydU0YAEm7eV6ZSskERDUq3DLJyl9\n"
588     "ZUZCHUzvb464dkwZjeNzaUVS1pdElJslwX3DtGgeJLJGCnk8zUjBjaNrrDm0kzPW\n"
589     "xKt/6oif1ci/KCKqKNXJAIFbc4e+IiBpenwpxHk3If4NM+Ek0nKoO8Uj0NkgTQ==\n"
590     "-----END CERTIFICATE-----\n";
591 
592 static const char kNoBasicConstraintsCertSignLeaf[] =
593     "-----BEGIN CERTIFICATE-----\n"
594     "MIIBUDCB96ADAgECAgEDMAoGCCqGSM49BAMCMB8xHTAbBgNVBAMTFE5vIEJhc2lj\n"
595     "IENvbnN0cmFpbnRzMCAXDTAwMDEwMTAwMDAwMFoYDzIwOTkwMTAxMDAwMDAwWjAx\n"
596     "MS8wLQYDVQQDEyZMZWFmIGZyb20gQ0Egd2l0aCBubyBCYXNpYyBDb25zdHJhaW50\n"
597     "czBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABEsYPMwzdJKjB+2gpC90ib2ilHoB\n"
598     "w/arQ6ikUX0CNUDDaKaOu/jF39ogzVlg4lDFrjCKShSfCCcrwgONv70IZGijEDAO\n"
599     "MAwGA1UdEwEB/wQCMAAwCgYIKoZIzj0EAwIDSAAwRQIgbV7R99yM+okXSIs6Fp3o\n"
600     "eCOXiDL60IBxaTOcLS44ywcCIQDbn87Gj5cFgHBYAkzdHqDsyGXkxQTHDq9jmX24\n"
601     "Djy3Zw==\n"
602     "-----END CERTIFICATE-----\n";
603 
604 // kNoBasicConstraintsNetscapeCAIntermediate doesn't have isCA set, but contains
605 // a Netscape certificate-type extension that asserts a type of "SSL CA".
606 static const char kNoBasicConstraintsNetscapeCAIntermediate[] =
607     "-----BEGIN CERTIFICATE-----\n"
608     "MIIBuDCCASGgAwIBAgIBAjANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
609     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
610     "MDk5MDEwMTAwMDAwMFowKjEoMCYGA1UEAxMfTm8gQmFzaWMgQ29uc3RyYWludHMg\n"
611     "KE5ldHNjYXBlKTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABCeMbmCaOtMzXBqi\n"
612     "PrCdNOH23CkaawUA+pAezitAN4RXS1O2CGK5sJjGPVVeogROU8G7/b+mU+ciZIzH\n"
613     "1PP8FJKjMjAwMBsGA1UdIwQUMBKAEEA31wH7QC+4HH5UBCeMWQEwEQYJYIZIAYb4\n"
614     "QgEBBAQDAgIEMA0GCSqGSIb3DQEBCwUAA4GBAAgNWjh7cfBTClTAk+Ml//5xb9Ju\n"
615     "tkBhG6Rm+kkMD+qiSMO6t7xS7CsA0+jIBjkdEYaLZ3oxtQCBdZsVNxUvRxZ0AUfF\n"
616     "G3DtRFTsrI1f7IQhpMuqEMF4shPW+5x54hrq0Fo6xMs6XoinJZcTUaaB8EeXRF6M\n"
617     "P9p6HuyLrmn0c/F0\n"
618     "-----END CERTIFICATE-----\n";
619 
620 static const char kNoBasicConstraintsNetscapeCALeaf[] =
621     "-----BEGIN CERTIFICATE-----\n"
622     "MIIBXDCCAQKgAwIBAgIBAzAKBggqhkjOPQQDAjAqMSgwJgYDVQQDEx9ObyBCYXNp\n"
623     "YyBDb25zdHJhaW50cyAoTmV0c2NhcGUpMCAXDTAwMDEwMTAwMDAwMFoYDzIwOTkw\n"
624     "MTAxMDAwMDAwWjAxMS8wLQYDVQQDEyZMZWFmIGZyb20gQ0Egd2l0aCBubyBCYXNp\n"
625     "YyBDb25zdHJhaW50czBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDlJKolDu3R2\n"
626     "tPqSDycr0QJcWhxdBv76V0EEVflcHRxED6vAioTEcnQszt1OfKtBZvjlo0yp6i6Q\n"
627     "DaYit0ZInmWjEDAOMAwGA1UdEwEB/wQCMAAwCgYIKoZIzj0EAwIDSAAwRQIhAJsh\n"
628     "aZL6BHeEfoUBj1oZ2Ln91qzj3UCVMJ+vrmwAFdYyAiA3wp2JphgchvmoUFuzPXwj\n"
629     "XyPwWPbymSTpzKhB4xB7qQ==\n"
630     "-----END CERTIFICATE-----\n";
631 
632 static const char kSelfSignedMismatchAlgorithms[] =
633     "-----BEGIN CERTIFICATE-----\n"
634     "MIIFMjCCAxqgAwIBAgIJAL0mG5fOeJ7xMA0GCSqGSIb3DQEBDQUAMC0xCzAJBgNV\n"
635     "BAYTAkdCMQ8wDQYDVQQHDAZMb25kb24xDTALBgNVBAoMBFRlc3QwIBcNMTgwOTE3\n"
636     "MTIxNzU3WhgPMjExODA4MjQxMjE3NTdaMC0xCzAJBgNVBAYTAkdCMQ8wDQYDVQQH\n"
637     "DAZMb25kb24xDTALBgNVBAoMBFRlc3QwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAw\n"
638     "ggIKAoICAQDCMhBrRAGGw+n2GdctBr/cEK4FZA6ajiHjihgpCHoSBdyL4R2jGKLS\n"
639     "g0WgaMXa1HpkKN7LcIySosEBPlmcRkr1RqbEvQStOSvoFCXYvtx3alM6HTbXMcDR\n"
640     "mqoKoABP6LXsPSoMWIgqMtP2X9EOppzHVIK1yFYFfbIlvYUV2Ka+MuMe0Vh5wvD1\n"
641     "4GanPb+cWSKgdRSVQovCCMY3yWtZKVEaxRpCsk/mYYIFWz0tcgMjIKwDx1XXgiAV\n"
642     "nU6NK43xbaw3XhtnaD/pv9lhTTbNrlcln9LjTD097BaK4R+1AEPHnpfxA9Ui3upn\n"
643     "kbsNUdGdOB0ksZi/vd7lh833YgquQUIAhYrbfvq/HFCpVV1gljzlS3sqULYpLE//\n"
644     "i3OsuL2mE+CYIJGpIi2GeJJWXciNMTJDOqTn+fRDtVb4RPp4Y70DJirp7XzaBi3q\n"
645     "H0edANCzPSRCDbZsOhzIXhXshldiXVRX666DDlbMQgLTEnNKrkwv6DmU8o15XQsb\n"
646     "8k1Os2YwXmkEOxUQ7AJZXVTZSf6UK9Znmdq1ZrHjybMfRUkHVxJcnKvrxfryralv\n"
647     "gzfvu+D6HuxrCo3Ojqa+nDgIbxKEBtdrcsMhq1jWPFhjwo1fSadAkKOfdCAuXJRD\n"
648     "THg3b4Sf+W7Cpc570YHrIpBf7WFl2XsPcEM0mJZ5+yATASCubNozQwIDAQABo1Mw\n"
649     "UTAdBgNVHQ4EFgQUES0hupZSqY21JOba10QyZuxm91EwHwYDVR0jBBgwFoAUES0h\n"
650     "upZSqY21JOba10QyZuxm91EwDwYDVR0TAQH/BAUwAwEB/zANBgkqhkiG9w0BAQsF\n"
651     "AAOCAgEABTN5S30ng/RMpBweDm2N561PdpaCdiRXtAFCRVWR2mkDYC/Xj9Vqe6be\n"
652     "PyM7L/5OKYVjzF1yJu67z/dx+ja5o+41g17jdqla7hyPx+9B4uRyDh+1KJTa+duj\n"
653     "mw/aA1LCr6O6W4WizDOsChJ6FaB2Y1+GlFnKWb5nUdhVJqXQE1WOX9dZnw8Y4Npd\n"
654     "VmAsjWot0BZorJrt3fwfcv3QfA896twkbo7Llv/8qzg4sXZXZ4ZtgAOqnPngiSn+\n"
655     "JT/vYCXZ406VvAFpFqMcVz2dO/VGuL8lGIMHRKNyafrsV81EzH1W/XmRWOgvgj6r\n"
656     "yQI63ln/AMY72HQ97xLkE1xKunGz6bK5Ug5+O43Uftc4Mb6MUgzo+ZqEQ3Ob+cAV\n"
657     "cvjmtwDaPO/O39O5Xq0tLTlkn2/cKf4OQ6S++GDxzyRVHh5JXgP4j9+jfZY57Woy\n"
658     "R1bE7N50JjY4cDermBJKdlBIjL7UPhqmLyaG7V0hBitFlgGBUCcJtJOV0xYd5aF3\n"
659     "pxNkvMXhBmh95fjxJ0cJjpO7tN1RAwtMMNgsl7OUbuVRQCHOPW5DgP5qY21jDeRn\n"
660     "BY82382l+9QzykmJLI5MZnmj4BA9uIDCwMtoTTvP++SsvhUAbuvh7MOOUQL0EY4m\n"
661     "KStYq7X9PKseN+PvmfeoffIKc5R/Ha39oi7cGMVHCr8aiEhsf94=\n"
662     "-----END CERTIFICATE-----\n";
663 
664 // kCommonNameWithSANs is a leaf certificate signed by kSANTypesRoot, with
665 // *.host1.test as the common name and a SAN list of *.host2.test and
666 // foo.host3.test.
667 static const char kCommonNameWithSANs[] =
668     "-----BEGIN CERTIFICATE-----\n"
669     "MIIB2zCCAUSgAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
670     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
671     "MDk5MDEwMTAwMDAwMFowNzEeMBwGA1UEChMVQ29tbW9uIG5hbWUgd2l0aCBTQU5z\n"
672     "MRUwEwYDVQQDDAwqLmhvc3QxLnRlc3QwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNC\n"
673     "AASgWzfnFnpQrokSLIC+LhCKJDUAY/2usfIDpOnafYoYCasbYetkmOslgyY4Nn07\n"
674     "zjvjNROprA/0bdULXAkdL9bNo0gwRjAbBgNVHSMEFDASgBBAN9cB+0AvuBx+VAQn\n"
675     "jFkBMCcGA1UdEQQgMB6CDCouaG9zdDIudGVzdIIOZm9vLmhvc3QzLnRlc3QwDQYJ\n"
676     "KoZIhvcNAQELBQADgYEAtv2e3hBhsslXB1HTxgusjoschWOVtvGZUaYlhkKzKTCL\n"
677     "4YpDn50BccnucBU/b9phYvaEZtyzOv4ZXhxTGyLnLrIVB9x5ikfCcfl+LNYNjDwM\n"
678     "enm/h1zOfJ7wXLyscD4kU29Wc/zxBd70thIgLYn16CC1S9NtXKsXXDXv5VVH/bg=\n"
679     "-----END CERTIFICATE-----\n";
680 
681 // kCommonNameWithSANs is a leaf certificate signed by kSANTypesRoot, with
682 // *.host1.test as the common name and no SAN list.
683 static const char kCommonNameWithoutSANs[] =
684     "-----BEGIN CERTIFICATE-----\n"
685     "MIIBtTCCAR6gAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
686     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
687     "MDk5MDEwMTAwMDAwMFowOjEhMB8GA1UEChMYQ29tbW9uIG5hbWUgd2l0aG91dCBT\n"
688     "QU5zMRUwEwYDVQQDDAwqLmhvc3QxLnRlc3QwWTATBgcqhkjOPQIBBggqhkjOPQMB\n"
689     "BwNCAARt2vjlIrPE+kr11VS1rRP/AYQu4fvf1bNw/K9rwYlVBhmLMPYasEmpCtKE\n"
690     "0bDIFydtDYC3wZDpSS+YiaG40sdAox8wHTAbBgNVHSMEFDASgBBAN9cB+0AvuBx+\n"
691     "VAQnjFkBMA0GCSqGSIb3DQEBCwUAA4GBAHRbIeaCEytOpJpw9O2dlB656AHe1+t5\n"
692     "4JiS5mvtzoVOLn7fFk5EFQtZS7sG1Uc2XjlSw+iyvFoTFEqfKyU/mIdc2vBuPwA2\n"
693     "+YXT8aE4S+UZ9oz5j0gDpikGnkSCW0cyHD8L8fntNjaQRSaM482JpmtdmuxClmWO\n"
694     "pFFXI2B5usgI\n"
695     "-----END CERTIFICATE-----\n";
696 
697 // kCommonNameWithEmailSAN is a leaf certificate signed by kSANTypesRoot, with
698 // *.host1.test as the common name and the email address test@host2.test in the
699 // SAN list.
700 static const char kCommonNameWithEmailSAN[] =
701     "-----BEGIN CERTIFICATE-----\n"
702     "MIIBvDCCASWgAwIBAgIBAjANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
703     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
704     "MDk5MDEwMTAwMDAwMFowFzEVMBMGA1UEAwwMKi5ob3N0MS50ZXN0MFkwEwYHKoZI\n"
705     "zj0CAQYIKoZIzj0DAQcDQgAEtevOxcTjpPzlNGoUMFfZyr1k03/Hiuh+EsnuScDs\n"
706     "8XLKi6fDkvSaDClI99ycabQZRPIrvyT+dglDC6ugQd+CYqNJMEcwDAYDVR0TAQH/\n"
707     "BAIwADAbBgNVHSMEFDASgBBAN9cB+0AvuBx+VAQnjFkBMBoGA1UdEQQTMBGBD3Rl\n"
708     "c3RAaG9zdDIudGVzdDANBgkqhkiG9w0BAQsFAAOBgQCGbqb78OWJWl4zb+qw0Dz2\n"
709     "HJgZZJt6/+nNG/XJKdaYeS4eofsbwsJI4fuuOF6ZvYCJxVNtGqdfZDgycvFA9hjv\n"
710     "NGosBF1/spP17cmzTahLjxs71jDvHV/EQJbKGl/Zpta1Em1VrzSrwoOFabPXzZTJ\n"
711     "aet/mER21Z/9ZsTUoJQPJw==\n"
712     "-----END CERTIFICATE-----\n";
713 
714 // kCommonNameWithIPSAN is a leaf certificate signed by kSANTypesRoot, with
715 // *.host1.test as the common name and the IP address 127.0.0.1 in the
716 // SAN list.
717 static const char kCommonNameWithIPSAN[] =
718     "-----BEGIN CERTIFICATE-----\n"
719     "MIIBsTCCARqgAwIBAgIBAjANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
720     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
721     "MDk5MDEwMTAwMDAwMFowFzEVMBMGA1UEAwwMKi5ob3N0MS50ZXN0MFkwEwYHKoZI\n"
722     "zj0CAQYIKoZIzj0DAQcDQgAEFKrgkxm8PysXbwnHQeTD3p8YY0+sY4ssnZgmj8wX\n"
723     "KTyn893fdBHWlz71GO6t82wMTF5d+ZYwI2XU52pfl4SB2aM+MDwwDAYDVR0TAQH/\n"
724     "BAIwADAbBgNVHSMEFDASgBBAN9cB+0AvuBx+VAQnjFkBMA8GA1UdEQQIMAaHBH8A\n"
725     "AAEwDQYJKoZIhvcNAQELBQADgYEAQWZ8Oj059ZjS109V/ijMYT28xuAN5n6HHxCO\n"
726     "DopTP56Zu9+gme5wTETWEfocspZvgecoUOcedTFoKSQ7JafO09NcVLA+D6ddYpju\n"
727     "mgfuiLy9dDhqvX/NHaLBMxOBWWbOLwWE+ibyX+pOzjWRCw1L7eUXOr6PhZAOQsmU\n"
728     "D0+O6KI=\n"
729     "-----END CERTIFICATE-----\n";
730 
731 // kConstrainedIntermediate is an intermediate signed by kSANTypesRoot, with
732 // permitted DNS names of permitted1.test and foo.permitted2.test and an
733 // excluded DNS name of excluded.permitted1.test. Its private key is:
734 //
735 // -----BEGIN PRIVATE KEY-----
736 // MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgTXUM4tJWM7OzATty
737 // JhNOfIv/d8heWFBeKOfMR+RfaROhRANCAASbbbWYiN6mn+BCpg4XNpibOH0D/DN4
738 // kZ5C/Ml2YVomC9T83OKk2CzB8fPAabPb4P4Vv+fIabpEfjWS5nzKLY1y
739 // -----END PRIVATE KEY-----
740 static const char kConstrainedIntermediate[] =
741     "-----BEGIN CERTIFICATE-----\n"
742     "MIICDjCCAXegAwIBAgIBAjANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
743     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
744     "MDk5MDEwMTAwMDAwMFowKDEmMCQGA1UEAxMdTmFtZSBDb25zdHJhaW50cyBJbnRl\n"
745     "cm1lZGlhdGUwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASbbbWYiN6mn+BCpg4X\n"
746     "NpibOH0D/DN4kZ5C/Ml2YVomC9T83OKk2CzB8fPAabPb4P4Vv+fIabpEfjWS5nzK\n"
747     "LY1yo4GJMIGGMA8GA1UdEwEB/wQFMAMBAf8wGwYDVR0jBBQwEoAQQDfXAftAL7gc\n"
748     "flQEJ4xZATBWBgNVHR4BAf8ETDBKoCowEYIPcGVybWl0dGVkMS50ZXN0MBWCE2Zv\n"
749     "by5wZXJtaXR0ZWQyLnRlc3ShHDAaghhleGNsdWRlZC5wZXJtaXR0ZWQxLnRlc3Qw\n"
750     "DQYJKoZIhvcNAQELBQADgYEAFq1Ka05hiKREwRpSceQPzIIH4B5a5IVBg5/EvmQI\n"
751     "9V0fXyAE1GmahPt70sIBxIgzNTEaY8P/IoOuCdlZWe0msmyEO3S6YSAzOWR5Van6\n"
752     "cXmFM1uMd95TlkxUMRdV+jKJTvG6R/BM2zltaV7Xt662k5HtzT5Svw0rZlFaggZz\n"
753     "UyM=\n"
754     "-----END CERTIFICATE-----\n";
755 
756 // kCommonNamePermittedLeaf is a leaf certificate signed by
757 // kConstrainedIntermediate. Its common name is permitted by the name
758 // constraints.
759 static const char kCommonNamePermittedLeaf[] =
760     "-----BEGIN CERTIFICATE-----\n"
761     "MIIBaDCCAQ2gAwIBAgIBAzAKBggqhkjOPQQDAjAoMSYwJAYDVQQDEx1OYW1lIENv\n"
762     "bnN0cmFpbnRzIEludGVybWVkaWF0ZTAgFw0wMDAxMDEwMDAwMDBaGA8yMDk5MDEw\n"
763     "MTAwMDAwMFowPjEeMBwGA1UEChMVQ29tbW9uIG5hbWUgcGVybWl0dGVkMRwwGgYD\n"
764     "VQQDExNmb28ucGVybWl0dGVkMS50ZXN0MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcD\n"
765     "QgAENX5Ycs8q8MRzPYUz6DqLHhJR3wcmniFRgkiEa7MxE/mRe00y0VGwH7xi7Aoc\n"
766     "emXPrtD4JwN5bssbcxWGAKYYzaMQMA4wDAYDVR0TAQH/BAIwADAKBggqhkjOPQQD\n"
767     "AgNJADBGAiEAtsnWuRQXtw2xbieC78Y8SVEtTjcZUx8uZyQe1GPLfGICIQDR4fNY\n"
768     "yg3PC94ydPNQZVsFxAne32CbonWWsokalTFpUQ==\n"
769     "-----END CERTIFICATE-----\n";
770 static const char kCommonNamePermitted[] = "foo.permitted1.test";
771 
772 // kCommonNameNotPermittedLeaf is a leaf certificate signed by
773 // kConstrainedIntermediate. Its common name is not permitted by the name
774 // constraints.
775 static const char kCommonNameNotPermittedLeaf[] =
776     "-----BEGIN CERTIFICATE-----\n"
777     "MIIBazCCARCgAwIBAgIBBDAKBggqhkjOPQQDAjAoMSYwJAYDVQQDEx1OYW1lIENv\n"
778     "bnN0cmFpbnRzIEludGVybWVkaWF0ZTAgFw0wMDAxMDEwMDAwMDBaGA8yMDk5MDEw\n"
779     "MTAwMDAwMFowQTEiMCAGA1UEChMZQ29tbW9uIG5hbWUgbm90IHBlcm1pdHRlZDEb\n"
780     "MBkGA1UEAxMSbm90LXBlcm1pdHRlZC50ZXN0MFkwEwYHKoZIzj0CAQYIKoZIzj0D\n"
781     "AQcDQgAEzfghKuWf0JoXb0Drp09C3yXMSQQ1byt+AUaymvsHOWsxQ9v1Q+vkF/IM\n"
782     "HRqGTk2TyxrB2iClVEn/Uu+YtYox1KMQMA4wDAYDVR0TAQH/BAIwADAKBggqhkjO\n"
783     "PQQDAgNJADBGAiEAxaUslxmoWL1tIvnDz7gDkto/HcmdU0jHVuUQLXcCG8wCIQCN\n"
784     "5xZjitlCQU8UB5qSu9wH4B+0JcVO3Ss4Az76HEJWMw==\n"
785     "-----END CERTIFICATE-----\n";
786 static const char kCommonNameNotPermitted[] = "not-permitted.test";
787 
788 // kCommonNameNotPermittedWithSANsLeaf is a leaf certificate signed by
789 // kConstrainedIntermediate. Its common name is not permitted by the name
790 // constraints but it has a SAN list.
791 static const char kCommonNameNotPermittedWithSANsLeaf[] =
792     "-----BEGIN CERTIFICATE-----\n"
793     "MIIBqTCCAU+gAwIBAgIBBjAKBggqhkjOPQQDAjAoMSYwJAYDVQQDEx1OYW1lIENv\n"
794     "bnN0cmFpbnRzIEludGVybWVkaWF0ZTAgFw0wMDAxMDEwMDAwMDBaGA8yMDk5MDEw\n"
795     "MTAwMDAwMFowSzEsMCoGA1UEChMjQ29tbW9uIG5hbWUgbm90IHBlcm1pdHRlZCB3\n"
796     "aXRoIFNBTlMxGzAZBgNVBAMTEm5vdC1wZXJtaXR0ZWQudGVzdDBZMBMGByqGSM49\n"
797     "AgEGCCqGSM49AwEHA0IABKsn9wOApXFHrqhLdQgbFSeaSoAIbxgO0zVSRZUb5naR\n"
798     "93zoL3MFOvZEF8xiEqh7le+l3XuUig0fwqpcsZzRNJajRTBDMAwGA1UdEwEB/wQC\n"
799     "MAAwMwYDVR0RBCwwKoITZm9vLnBlcm1pdHRlZDEudGVzdIITZm9vLnBlcm1pdHRl\n"
800     "ZDIudGVzdDAKBggqhkjOPQQDAgNIADBFAiACk+1f184KkKAXuntmrz+Ygcq8MiZl\n"
801     "4delx44FtcNaegIhAIA5nYfzxNcTXxDo3U+x1vSLH6Y7faLvHiFySp7O//q+\n"
802     "-----END CERTIFICATE-----\n";
803 static const char kCommonNameNotPermittedWithSANs[] = "not-permitted.test";
804 
805 // kCommonNameNotDNSLeaf is a leaf certificate signed by
806 // kConstrainedIntermediate. Its common name is not a DNS name.
807 static const char kCommonNameNotDNSLeaf[] =
808     "-----BEGIN CERTIFICATE-----\n"
809     "MIIBYTCCAQagAwIBAgIBCDAKBggqhkjOPQQDAjAoMSYwJAYDVQQDEx1OYW1lIENv\n"
810     "bnN0cmFpbnRzIEludGVybWVkaWF0ZTAgFw0wMDAxMDEwMDAwMDBaGA8yMDk5MDEw\n"
811     "MTAwMDAwMFowNzEcMBoGA1UEChMTQ29tbW9uIG5hbWUgbm90IEROUzEXMBUGA1UE\n"
812     "AxMOTm90IGEgRE5TIG5hbWUwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASnueyc\n"
813     "Zxtnw5ke2J2T0/LwAK37auQP/RSFd9mem+BJVbgviawtAlignJmafp7Zw4/GdYEJ\n"
814     "Vm8qlriOJtluvXGcoxAwDjAMBgNVHRMBAf8EAjAAMAoGCCqGSM49BAMCA0kAMEYC\n"
815     "IQChUAmVNI39VHe0zemRE09VDcSEgOxr1nTvjLcg/Q8pVQIhAJYZnJI0YZAi05QH\n"
816     "RHNlAkTK2TnUaVn3fGSylaLiFS1r\n"
817     "-----END CERTIFICATE-----\n";
818 static const char kCommonNameNotDNS[] = "Not a DNS name";
819 
820 // The following six certificates are issued by |kSANTypesRoot| and have
821 // different extended key usage values. They were created with the following
822 // Go program:
823 //
824 // func main() {
825 //     block, _ := pem.Decode([]byte(rootKeyPEM))
826 //     rootPriv, _ := x509.ParsePKCS1PrivateKey(block.Bytes)
827 //     block, _ = pem.Decode([]byte(rootCertPEM))
828 //     root, _ := x509.ParseCertificate(block.Bytes)
829 //
830 //     leafTemplate := &x509.Certificate{
831 //         SerialNumber: big.NewInt(3),
832 //         Subject: pkix.Name{
833 //             CommonName: "EKU msSGC",
834 //         },
835 //         NotBefore:             time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
836 //         NotAfter:              time.Date(2099, time.January, 1, 0, 0, 0, 0, time.UTC),
837 //         BasicConstraintsValid: true,
838 //         ExtKeyUsage:           []x509.ExtKeyUsage{FILL IN HERE},
839 //     }
840 //     leafKey, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
841 //     leafDER, err := x509.CreateCertificate(rand.Reader, leafTemplate, root, &leafKey.PublicKey, rootPriv)
842 //     if err != nil {
843 //         panic(err)
844 //     }
845 //     pem.Encode(os.Stdout, &pem.Block{Type: "CERTIFICATE", Bytes: leafDER})
846 // }
847 
848 static const char kMicrosoftSGCCert[] =
849     "-----BEGIN CERTIFICATE-----\n"
850     "MIIBtDCCAR2gAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
851     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
852     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
853     "AQYIKoZIzj0DAQcDQgAEEn61v3Vs+q6bTyyRnrJvuKBE8PTNVLbXGB52jig4Qse2\n"
854     "mGygNEysS0uzZ0luz+rn2hDRUFL6sHLUs1d8UMbI/6NEMEIwFQYDVR0lBA4wDAYK\n"
855     "KwYBBAGCNwoDAzAMBgNVHRMBAf8EAjAAMBsGA1UdIwQUMBKAEEA31wH7QC+4HH5U\n"
856     "BCeMWQEwDQYJKoZIhvcNAQELBQADgYEAgDQI9RSo3E3ZVnU71TV/LjG9xwHtfk6I\n"
857     "rlNnlJJ0lsTHAuMc1mwCbzhtsmasetwYlIa9G8GFWB9Gh/QqHA7G649iGGmXShqe\n"
858     "aVDuWgeSEJxBPE2jILoMm4pEYF7jfonTn7XXX6O78yuSlP+NPIU0gUKHkWZ1sWk0\n"
859     "cC4l0r/6jik=\n"
860     "-----END CERTIFICATE-----\n";
861 
862 static const char kNetscapeSGCCert[] =
863     "-----BEGIN CERTIFICATE-----\n"
864     "MIIBszCCARygAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
865     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
866     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
867     "AQYIKoZIzj0DAQcDQgAE3NbT+TnBfq1DWJCezjaUL52YhDU7cOkI2S2PoWgJ1v7x\n"
868     "kKLwBonUFZjppZs69SyBHeJdti+KoJ3qTW+hCG08EaNDMEEwFAYDVR0lBA0wCwYJ\n"
869     "YIZIAYb4QgQBMAwGA1UdEwEB/wQCMAAwGwYDVR0jBBQwEoAQQDfXAftAL7gcflQE\n"
870     "J4xZATANBgkqhkiG9w0BAQsFAAOBgQBuiyVcfazekHkCWksxdFmjPmMtWCxFjkzc\n"
871     "8VBxFE0CfSHQAfZ8J7tXd1FbAq/eXdZvvo8v0JB4sOM4Ex1ob1fuvDFHdSAHAD7W\n"
872     "dhKIjJyzVojoxjCjyue0XMeEPl7RiqbdxoS/R5HFAqAF0T2OeQAqP9gTpOXoau1M\n"
873     "RQHX6HQJJg==\n"
874     "-----END CERTIFICATE-----\n";
875 
876 static const char kServerEKUCert[] =
877     "-----BEGIN CERTIFICATE-----\n"
878     "MIIBsjCCARugAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
879     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
880     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
881     "AQYIKoZIzj0DAQcDQgAEDd35i+VWPwIOKLrLWTuP5cqD+yJDB5nujEzPgkXP5LKJ\n"
882     "SZRbHTqTdpYZB2jy6y90RY2Bsjx7FfZ7nN5G2g1GOKNCMEAwEwYDVR0lBAwwCgYI\n"
883     "KwYBBQUHAwEwDAYDVR0TAQH/BAIwADAbBgNVHSMEFDASgBBAN9cB+0AvuBx+VAQn\n"
884     "jFkBMA0GCSqGSIb3DQEBCwUAA4GBAIKmbMBjuivL/rxDu7u7Vr3o3cdmEggBJxwL\n"
885     "iatNW3x1wg0645aNYOktW/iQ7mAAiziTY73GFyfiJDWqnY+CwA94ZWyQidjHdN/I\n"
886     "6BR52sN/dkYEoInYEbmDNMc/if+T0yqeBQLP4BeKLiT8p0qqaimae6LgibS19hDP\n"
887     "2hoEMdz2\n"
888     "-----END CERTIFICATE-----\n";
889 
890 static const char kServerEKUPlusMicrosoftSGCCert[] =
891     "-----BEGIN CERTIFICATE-----\n"
892     "MIIBvjCCASegAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
893     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
894     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
895     "AQYIKoZIzj0DAQcDQgAEDO1MYPxq+U4oXMIK8UnsS4C696wpcu4UOmcMJJ5CUd5Z\n"
896     "ZpJShN6kYKnrb3GK/6xEgbUGntmrzSRG5FYqk6QgD6NOMEwwHwYDVR0lBBgwFgYI\n"
897     "KwYBBQUHAwEGCisGAQQBgjcKAwMwDAYDVR0TAQH/BAIwADAbBgNVHSMEFDASgBBA\n"
898     "N9cB+0AvuBx+VAQnjFkBMA0GCSqGSIb3DQEBCwUAA4GBAHOu2IBa4lHzVGS36HxS\n"
899     "SejUE87Ji1ysM6BgkYbfxfS9MuV+J3UnqH57JjbH/3CFl4ZDWceF6SGBSCn8LqKa\n"
900     "KHpwoNFU3zA99iQzVJgbUyN0PbKwHEanLyKDJZyFk71R39ToxhSNQgaQYjZYCy1H\n"
901     "5V9oXd1bodEqVsOZ/mur24Ku\n"
902     "-----END CERTIFICATE-----\n";
903 
904 static const char kAnyEKU[] =
905     "-----BEGIN CERTIFICATE-----\n"
906     "MIIBrjCCARegAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
907     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
908     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
909     "AQYIKoZIzj0DAQcDQgAE9nsLABDporlTvx1OBUc4Hd5vxfX+8nS/OhbHmKtFLYNu\n"
910     "1CLLrImbwMQYD2G+PgLO6sQHmASq2jmJKp6ZWsRkTqM+MDwwDwYDVR0lBAgwBgYE\n"
911     "VR0lADAMBgNVHRMBAf8EAjAAMBsGA1UdIwQUMBKAEEA31wH7QC+4HH5UBCeMWQEw\n"
912     "DQYJKoZIhvcNAQELBQADgYEAxgjgn1SAzQ+2GeCicZ5ndvVhKIeFelGCQ989XTVq\n"
913     "uUbAYBW6v8GXNuVzoXYxDgNSanF6U+w+INrJ6daKVrIxAxdk9QFgBXqJoupuRAA3\n"
914     "/OqnmYux0EqOTLbTK1P8DhaiaD0KV6dWGUwzqsgBmPkZ0lgNaPjvb1mKV3jhBkjz\n"
915     "L6A=\n"
916     "-----END CERTIFICATE-----\n";
917 
918 static const char kNoEKU[] =
919     "-----BEGIN CERTIFICATE-----\n"
920     "MIIBnTCCAQagAwIBAgIBAzANBgkqhkiG9w0BAQsFADArMRcwFQYDVQQKEw5Cb3Jp\n"
921     "bmdTU0wgVGVzdDEQMA4GA1UEAxMHUm9vdCBDQTAgFw0wMDAxMDEwMDAwMDBaGA8y\n"
922     "MDk5MDEwMTAwMDAwMFowFDESMBAGA1UEAxMJRUtVIG1zU0dDMFkwEwYHKoZIzj0C\n"
923     "AQYIKoZIzj0DAQcDQgAEpSFSqbYY86ZcMamE606dqdyjWlwhSHKOLUFsUUIzkMPz\n"
924     "KHRu/x3Yzi8+Hm8eFK/TnCbkpYsYw4hIw00176dYzaMtMCswDAYDVR0TAQH/BAIw\n"
925     "ADAbBgNVHSMEFDASgBBAN9cB+0AvuBx+VAQnjFkBMA0GCSqGSIb3DQEBCwUAA4GB\n"
926     "AHvYzynIkjLThExHRS+385hfv4vgrQSMmCM1SAnEIjSBGsU7RPgiGAstN06XivuF\n"
927     "T1fNugRmTu4OtOIbfdYkcjavJufw9hR9zWTt77CNMTy9XmOZLgdS5boFTtLCztr3\n"
928     "TXHOSQQD8Dl4BK0wOet+TP6LBEjHlRFjAqK4bu9xpxV2\n"
929     "-----END CERTIFICATE-----\n";
930 
931 // CertFromPEM parses the given, NUL-terminated pem block and returns an
932 // |X509*|.
CertFromPEM(const char * pem)933 static bssl::UniquePtr<X509> CertFromPEM(const char *pem) {
934   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(pem, strlen(pem)));
935   return bssl::UniquePtr<X509>(
936       PEM_read_bio_X509(bio.get(), nullptr, nullptr, nullptr));
937 }
938 
939 // CRLFromPEM parses the given, NUL-terminated pem block and returns an
940 // |X509_CRL*|.
CRLFromPEM(const char * pem)941 static bssl::UniquePtr<X509_CRL> CRLFromPEM(const char *pem) {
942   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(pem, strlen(pem)));
943   return bssl::UniquePtr<X509_CRL>(
944       PEM_read_bio_X509_CRL(bio.get(), nullptr, nullptr, nullptr));
945 }
946 
947 // PrivateKeyFromPEM parses the given, NUL-terminated pem block and returns an
948 // |EVP_PKEY*|.
PrivateKeyFromPEM(const char * pem)949 static bssl::UniquePtr<EVP_PKEY> PrivateKeyFromPEM(const char *pem) {
950   bssl::UniquePtr<BIO> bio(
951       BIO_new_mem_buf(const_cast<char *>(pem), strlen(pem)));
952   return bssl::UniquePtr<EVP_PKEY>(
953       PEM_read_bio_PrivateKey(bio.get(), nullptr, nullptr, nullptr));
954 }
955 
956 // CertsToStack converts a vector of |X509*| to an OpenSSL STACK_OF(X509),
957 // bumping the reference counts for each certificate in question.
CertsToStack(const std::vector<X509 * > & certs)958 static bssl::UniquePtr<STACK_OF(X509)> CertsToStack(
959     const std::vector<X509 *> &certs) {
960   bssl::UniquePtr<STACK_OF(X509)> stack(sk_X509_new_null());
961   if (!stack) {
962     return nullptr;
963   }
964   for (auto cert : certs) {
965     if (!bssl::PushToStack(stack.get(), bssl::UpRef(cert))) {
966       return nullptr;
967     }
968   }
969 
970   return stack;
971 }
972 
973 // CRLsToStack converts a vector of |X509_CRL*| to an OpenSSL
974 // STACK_OF(X509_CRL), bumping the reference counts for each CRL in question.
CRLsToStack(const std::vector<X509_CRL * > & crls)975 static bssl::UniquePtr<STACK_OF(X509_CRL)> CRLsToStack(
976     const std::vector<X509_CRL *> &crls) {
977   bssl::UniquePtr<STACK_OF(X509_CRL)> stack(sk_X509_CRL_new_null());
978   if (!stack) {
979     return nullptr;
980   }
981   for (auto crl : crls) {
982     if (!bssl::PushToStack(stack.get(), bssl::UpRef(crl))) {
983       return nullptr;
984     }
985   }
986 
987   return stack;
988 }
989 
Verify(X509 * leaf,const std::vector<X509 * > & roots,const std::vector<X509 * > & intermediates,const std::vector<X509_CRL * > & crls,unsigned long flags,bool use_additional_untrusted,std::function<void (X509_VERIFY_PARAM *)> configure_callback,int (* verify_callback)(int,X509_STORE_CTX *)=nullptr)990 static int Verify(X509 *leaf, const std::vector<X509 *> &roots,
991                   const std::vector<X509 *> &intermediates,
992                   const std::vector<X509_CRL *> &crls, unsigned long flags,
993                   bool use_additional_untrusted,
994                   std::function<void(X509_VERIFY_PARAM *)> configure_callback,
995                   int (*verify_callback)(int, X509_STORE_CTX *) = nullptr) {
996   bssl::UniquePtr<STACK_OF(X509)> roots_stack(CertsToStack(roots));
997   bssl::UniquePtr<STACK_OF(X509)> intermediates_stack(
998       CertsToStack(intermediates));
999   bssl::UniquePtr<STACK_OF(X509_CRL)> crls_stack(CRLsToStack(crls));
1000 
1001   if (!roots_stack ||
1002       !intermediates_stack ||
1003       !crls_stack) {
1004     return X509_V_ERR_UNSPECIFIED;
1005   }
1006 
1007   bssl::UniquePtr<X509_STORE_CTX> ctx(X509_STORE_CTX_new());
1008   bssl::UniquePtr<X509_STORE> store(X509_STORE_new());
1009   if (!ctx ||
1010       !store) {
1011     return X509_V_ERR_UNSPECIFIED;
1012   }
1013 
1014   if (use_additional_untrusted) {
1015     X509_STORE_set0_additional_untrusted(store.get(),
1016                                          intermediates_stack.get());
1017   }
1018 
1019   if (!X509_STORE_CTX_init(
1020           ctx.get(), store.get(), leaf,
1021           use_additional_untrusted ? nullptr : intermediates_stack.get())) {
1022     return X509_V_ERR_UNSPECIFIED;
1023   }
1024 
1025   X509_STORE_CTX_trusted_stack(ctx.get(), roots_stack.get());
1026   X509_STORE_CTX_set0_crls(ctx.get(), crls_stack.get());
1027 
1028   X509_VERIFY_PARAM *param = X509_VERIFY_PARAM_new();
1029   if (param == nullptr) {
1030     return X509_V_ERR_UNSPECIFIED;
1031   }
1032   X509_VERIFY_PARAM_set_time(param, 1474934400 /* Sep 27th, 2016 */);
1033   X509_VERIFY_PARAM_set_depth(param, 16);
1034   if (configure_callback) {
1035     configure_callback(param);
1036   }
1037   if (flags) {
1038     X509_VERIFY_PARAM_set_flags(param, flags);
1039   }
1040   X509_STORE_CTX_set0_param(ctx.get(), param);
1041 
1042   ERR_clear_error();
1043   if (X509_verify_cert(ctx.get()) != 1) {
1044     return X509_STORE_CTX_get_error(ctx.get());
1045   }
1046 
1047   return X509_V_OK;
1048 }
1049 
Verify(X509 * leaf,const std::vector<X509 * > & roots,const std::vector<X509 * > & intermediates,const std::vector<X509_CRL * > & crls,unsigned long flags=0)1050 static int Verify(X509 *leaf, const std::vector<X509 *> &roots,
1051                    const std::vector<X509 *> &intermediates,
1052                    const std::vector<X509_CRL *> &crls,
1053                    unsigned long flags = 0) {
1054   const int r1 =
1055       Verify(leaf, roots, intermediates, crls, flags, false, nullptr);
1056   const int r2 =
1057       Verify(leaf, roots, intermediates, crls, flags, true, nullptr);
1058 
1059   if (r1 != r2) {
1060     fprintf(stderr,
1061             "Verify with, and without, use_additional_untrusted gave different "
1062             "results: %d vs %d.\n",
1063             r1, r2);
1064     return false;
1065   }
1066 
1067   return r1;
1068 }
1069 
TEST(X509Test,TestVerify)1070 TEST(X509Test, TestVerify) {
1071   bssl::UniquePtr<X509> cross_signing_root(CertFromPEM(kCrossSigningRootPEM));
1072   bssl::UniquePtr<X509> root(CertFromPEM(kRootCAPEM));
1073   bssl::UniquePtr<X509> root_cross_signed(CertFromPEM(kRootCrossSignedPEM));
1074   bssl::UniquePtr<X509> intermediate(CertFromPEM(kIntermediatePEM));
1075   bssl::UniquePtr<X509> intermediate_self_signed(
1076       CertFromPEM(kIntermediateSelfSignedPEM));
1077   bssl::UniquePtr<X509> leaf(CertFromPEM(kLeafPEM));
1078   bssl::UniquePtr<X509> leaf_no_key_usage(CertFromPEM(kLeafNoKeyUsagePEM));
1079   bssl::UniquePtr<X509> forgery(CertFromPEM(kForgeryPEM));
1080 
1081   ASSERT_TRUE(cross_signing_root);
1082   ASSERT_TRUE(root);
1083   ASSERT_TRUE(root_cross_signed);
1084   ASSERT_TRUE(intermediate);
1085   ASSERT_TRUE(intermediate_self_signed);
1086   ASSERT_TRUE(leaf);
1087   ASSERT_TRUE(forgery);
1088   ASSERT_TRUE(leaf_no_key_usage);
1089 
1090   std::vector<X509*> empty;
1091   std::vector<X509_CRL*> empty_crls;
1092   ASSERT_EQ(X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY,
1093             Verify(leaf.get(), empty, empty, empty_crls));
1094   ASSERT_EQ(X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY,
1095             Verify(leaf.get(), empty, {intermediate.get()}, empty_crls));
1096 
1097   ASSERT_EQ(X509_V_OK,
1098             Verify(leaf.get(), {root.get()}, {intermediate.get()}, empty_crls));
1099   ASSERT_EQ(X509_V_OK,
1100             Verify(leaf.get(), {cross_signing_root.get()},
1101                    {intermediate.get(), root_cross_signed.get()}, empty_crls));
1102   ASSERT_EQ(X509_V_OK,
1103             Verify(leaf.get(), {cross_signing_root.get(), root.get()},
1104                    {intermediate.get(), root_cross_signed.get()}, empty_crls));
1105 
1106   /* This is the “altchains” test – we remove the cross-signing CA but include
1107    * the cross-sign in the intermediates. */
1108   ASSERT_EQ(X509_V_OK,
1109             Verify(leaf.get(), {root.get()},
1110                    {intermediate.get(), root_cross_signed.get()}, empty_crls));
1111   ASSERT_EQ(X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY,
1112             Verify(leaf.get(), {root.get()},
1113                    {intermediate.get(), root_cross_signed.get()}, empty_crls,
1114                    X509_V_FLAG_NO_ALT_CHAINS));
1115   ASSERT_EQ(X509_V_ERR_INVALID_CA,
1116             Verify(forgery.get(), {intermediate_self_signed.get()},
1117                    {leaf_no_key_usage.get()}, empty_crls));
1118 
1119   /* Test that one cannot skip Basic Constraints checking with a contorted set
1120    * of roots and intermediates. This is a regression test for CVE-2015-1793. */
1121   ASSERT_EQ(X509_V_ERR_INVALID_CA,
1122             Verify(forgery.get(),
1123                    {intermediate_self_signed.get(), root_cross_signed.get()},
1124                    {leaf_no_key_usage.get(), intermediate.get()}, empty_crls));
1125 }
1126 
1127 static const char kHostname[] = "example.com";
1128 static const char kWrongHostname[] = "example2.com";
1129 static const char kEmail[] = "test@example.com";
1130 static const char kWrongEmail[] = "test2@example.com";
1131 static const uint8_t kIP[4] = {127, 0, 0, 1};
1132 static const uint8_t kWrongIP[4] = {127, 0, 0, 2};
1133 static const char kIPString[] = "127.0.0.1";
1134 static const char kWrongIPString[] = "127.0.0.2";
1135 
TEST(X509Test,ZeroLengthsWithX509PARAM)1136 TEST(X509Test, ZeroLengthsWithX509PARAM) {
1137   bssl::UniquePtr<X509> leaf(CertFromPEM(kSANTypesLeaf));
1138   bssl::UniquePtr<X509> root(CertFromPEM(kSANTypesRoot));
1139   ASSERT_TRUE(leaf);
1140   ASSERT_TRUE(root);
1141 
1142   std::vector<X509_CRL *> empty_crls;
1143 
1144   struct X509Test {
1145     const char *correct_value;
1146     size_t correct_value_len;
1147     const char *incorrect_value;
1148     size_t incorrect_value_len;
1149     int (*func)(X509_VERIFY_PARAM *, const char *, size_t);
1150     int mismatch_error;
1151   };
1152   const std::vector<X509Test> kTests = {
1153       {kHostname, strlen(kHostname), kWrongHostname, strlen(kWrongHostname),
1154        X509_VERIFY_PARAM_set1_host, X509_V_ERR_HOSTNAME_MISMATCH},
1155       {kEmail, strlen(kEmail), kWrongEmail, strlen(kWrongEmail),
1156        X509_VERIFY_PARAM_set1_email, X509_V_ERR_EMAIL_MISMATCH},
1157   };
1158 
1159   for (size_t i = 0; i < kTests.size(); i++) {
1160     SCOPED_TRACE(i);
1161     const X509Test &test = kTests[i];
1162 
1163     // The correct value should work.
1164     ASSERT_EQ(X509_V_OK,
1165               Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1166                      [&test](X509_VERIFY_PARAM *param) {
1167                        ASSERT_TRUE(test.func(param, test.correct_value,
1168                                              test.correct_value_len));
1169                      }));
1170 
1171     // The wrong value should trigger a verification error.
1172     ASSERT_EQ(test.mismatch_error,
1173               Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1174                      [&test](X509_VERIFY_PARAM *param) {
1175                        ASSERT_TRUE(test.func(param, test.incorrect_value,
1176                                              test.incorrect_value_len));
1177                      }));
1178 
1179     // Passing zero as the length, unlike OpenSSL, should trigger an error and
1180     // should cause verification to fail.
1181     ASSERT_EQ(X509_V_ERR_INVALID_CALL,
1182               Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1183                      [&test](X509_VERIFY_PARAM *param) {
1184                        ASSERT_FALSE(test.func(param, test.correct_value, 0));
1185                      }));
1186 
1187     // Passing an empty value should be an error when setting and should cause
1188     // verification to fail.
1189     ASSERT_EQ(X509_V_ERR_INVALID_CALL,
1190               Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1191                      [&test](X509_VERIFY_PARAM *param) {
1192                        ASSERT_FALSE(test.func(param, nullptr, 0));
1193                      }));
1194 
1195     // Passing a value with embedded NULs should also be an error and should
1196     // also cause verification to fail.
1197     ASSERT_EQ(X509_V_ERR_INVALID_CALL,
1198               Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1199                      [&test](X509_VERIFY_PARAM *param) {
1200                        ASSERT_FALSE(test.func(param, "a", 2));
1201                      }));
1202   }
1203 
1204   // IP addresses work slightly differently:
1205 
1206   // The correct value should still work.
1207   ASSERT_EQ(X509_V_OK, Verify(leaf.get(), {root.get()}, {}, empty_crls, 0,
1208                               false, [](X509_VERIFY_PARAM *param) {
1209                                 ASSERT_TRUE(X509_VERIFY_PARAM_set1_ip(
1210                                     param, kIP, sizeof(kIP)));
1211                               }));
1212 
1213   // Incorrect values should still fail.
1214   ASSERT_EQ(X509_V_ERR_IP_ADDRESS_MISMATCH,
1215             Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1216                    [](X509_VERIFY_PARAM *param) {
1217                      ASSERT_TRUE(X509_VERIFY_PARAM_set1_ip(param, kWrongIP,
1218                                                            sizeof(kWrongIP)));
1219                    }));
1220 
1221   // Zero length values should trigger an error when setting and cause
1222   // verification to always fail.
1223   ASSERT_EQ(X509_V_ERR_INVALID_CALL,
1224             Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1225                    [](X509_VERIFY_PARAM *param) {
1226                      ASSERT_FALSE(X509_VERIFY_PARAM_set1_ip(param, kIP, 0));
1227                    }));
1228 
1229   // ... and so should NULL values.
1230   ASSERT_EQ(X509_V_ERR_INVALID_CALL,
1231             Verify(leaf.get(), {root.get()}, {}, empty_crls, 0, false,
1232                    [](X509_VERIFY_PARAM *param) {
1233                      ASSERT_FALSE(X509_VERIFY_PARAM_set1_ip(param, nullptr, 0));
1234                    }));
1235 
1236   // Zero bytes in an IP address are, of course, fine. This is tested above
1237   // because |kIP| contains zeros.
1238 }
1239 
TEST(X509Test,ZeroLengthsWithCheckFunctions)1240 TEST(X509Test, ZeroLengthsWithCheckFunctions) {
1241   bssl::UniquePtr<X509> leaf(CertFromPEM(kSANTypesLeaf));
1242 
1243   EXPECT_EQ(
1244       1, X509_check_host(leaf.get(), kHostname, strlen(kHostname), 0, nullptr));
1245   EXPECT_NE(1, X509_check_host(leaf.get(), kWrongHostname,
1246                                strlen(kWrongHostname), 0, nullptr));
1247 
1248   EXPECT_EQ(1, X509_check_email(leaf.get(), kEmail, strlen(kEmail), 0));
1249   EXPECT_NE(1,
1250             X509_check_email(leaf.get(), kWrongEmail, strlen(kWrongEmail), 0));
1251 
1252   EXPECT_EQ(1, X509_check_ip(leaf.get(), kIP, sizeof(kIP), 0));
1253   EXPECT_NE(1, X509_check_ip(leaf.get(), kWrongIP, sizeof(kWrongIP), 0));
1254 
1255   EXPECT_EQ(1, X509_check_ip_asc(leaf.get(), kIPString, 0));
1256   EXPECT_NE(1, X509_check_ip_asc(leaf.get(), kWrongIPString, 0));
1257 
1258   // OpenSSL supports passing zero as the length for host and email. We do not
1259   // and it should always fail.
1260   EXPECT_NE(1, X509_check_host(leaf.get(), kHostname, 0, 0, nullptr));
1261   EXPECT_NE(1, X509_check_host(leaf.get(), kWrongHostname, 0, 0, nullptr));
1262 
1263   EXPECT_NE(1, X509_check_email(leaf.get(), kEmail, 0, 0));
1264   EXPECT_NE(1, X509_check_email(leaf.get(), kWrongEmail, 0, 0));
1265 
1266   EXPECT_NE(1, X509_check_ip(leaf.get(), kIP, 0, 0));
1267   EXPECT_NE(1, X509_check_ip(leaf.get(), kWrongIP, 0, 0));
1268 
1269   // Unlike all the other functions, |X509_check_ip_asc| doesn't take a length,
1270   // so it cannot be zero.
1271 }
1272 
TEST(X509Test,TestCRL)1273 TEST(X509Test, TestCRL) {
1274   bssl::UniquePtr<X509> root(CertFromPEM(kCRLTestRoot));
1275   bssl::UniquePtr<X509> leaf(CertFromPEM(kCRLTestLeaf));
1276   bssl::UniquePtr<X509_CRL> basic_crl(CRLFromPEM(kBasicCRL));
1277   bssl::UniquePtr<X509_CRL> revoked_crl(CRLFromPEM(kRevokedCRL));
1278   bssl::UniquePtr<X509_CRL> bad_issuer_crl(CRLFromPEM(kBadIssuerCRL));
1279   bssl::UniquePtr<X509_CRL> known_critical_crl(CRLFromPEM(kKnownCriticalCRL));
1280   bssl::UniquePtr<X509_CRL> unknown_critical_crl(
1281       CRLFromPEM(kUnknownCriticalCRL));
1282   bssl::UniquePtr<X509_CRL> unknown_critical_crl2(
1283       CRLFromPEM(kUnknownCriticalCRL2));
1284 
1285   ASSERT_TRUE(root);
1286   ASSERT_TRUE(leaf);
1287   ASSERT_TRUE(basic_crl);
1288   ASSERT_TRUE(revoked_crl);
1289   ASSERT_TRUE(bad_issuer_crl);
1290   ASSERT_TRUE(known_critical_crl);
1291   ASSERT_TRUE(unknown_critical_crl);
1292   ASSERT_TRUE(unknown_critical_crl2);
1293 
1294   ASSERT_EQ(X509_V_OK, Verify(leaf.get(), {root.get()}, {root.get()},
1295                               {basic_crl.get()}, X509_V_FLAG_CRL_CHECK));
1296   ASSERT_EQ(
1297       X509_V_ERR_CERT_REVOKED,
1298       Verify(leaf.get(), {root.get()}, {root.get()},
1299              {basic_crl.get(), revoked_crl.get()}, X509_V_FLAG_CRL_CHECK));
1300 
1301   std::vector<X509_CRL *> empty_crls;
1302   ASSERT_EQ(X509_V_ERR_UNABLE_TO_GET_CRL,
1303             Verify(leaf.get(), {root.get()}, {root.get()}, empty_crls,
1304                    X509_V_FLAG_CRL_CHECK));
1305   ASSERT_EQ(X509_V_ERR_UNABLE_TO_GET_CRL,
1306             Verify(leaf.get(), {root.get()}, {root.get()},
1307                    {bad_issuer_crl.get()}, X509_V_FLAG_CRL_CHECK));
1308   ASSERT_EQ(X509_V_OK,
1309             Verify(leaf.get(), {root.get()}, {root.get()},
1310                    {known_critical_crl.get()}, X509_V_FLAG_CRL_CHECK));
1311   ASSERT_EQ(X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION,
1312             Verify(leaf.get(), {root.get()}, {root.get()},
1313                    {unknown_critical_crl.get()}, X509_V_FLAG_CRL_CHECK));
1314   ASSERT_EQ(X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION,
1315             Verify(leaf.get(), {root.get()}, {root.get()},
1316                    {unknown_critical_crl2.get()}, X509_V_FLAG_CRL_CHECK));
1317 }
1318 
TEST(X509Test,ManyNamesAndConstraints)1319 TEST(X509Test, ManyNamesAndConstraints) {
1320   bssl::UniquePtr<X509> many_constraints(
1321       CertFromPEM(GetTestData("crypto/x509/many_constraints.pem").c_str()));
1322   ASSERT_TRUE(many_constraints);
1323   bssl::UniquePtr<X509> many_names1(
1324       CertFromPEM(GetTestData("crypto/x509/many_names1.pem").c_str()));
1325   ASSERT_TRUE(many_names1);
1326   bssl::UniquePtr<X509> many_names2(
1327       CertFromPEM(GetTestData("crypto/x509/many_names2.pem").c_str()));
1328   ASSERT_TRUE(many_names2);
1329   bssl::UniquePtr<X509> many_names3(
1330       CertFromPEM(GetTestData("crypto/x509/many_names3.pem").c_str()));
1331   ASSERT_TRUE(many_names3);
1332   bssl::UniquePtr<X509> some_names1(
1333       CertFromPEM(GetTestData("crypto/x509/some_names1.pem").c_str()));
1334   ASSERT_TRUE(some_names1);
1335   bssl::UniquePtr<X509> some_names2(
1336       CertFromPEM(GetTestData("crypto/x509/some_names2.pem").c_str()));
1337   ASSERT_TRUE(some_names2);
1338   bssl::UniquePtr<X509> some_names3(
1339       CertFromPEM(GetTestData("crypto/x509/some_names3.pem").c_str()));
1340   ASSERT_TRUE(some_names3);
1341 
1342   EXPECT_EQ(X509_V_ERR_UNSPECIFIED,
1343             Verify(many_names1.get(), {many_constraints.get()},
1344                    {many_constraints.get()}, {}));
1345   EXPECT_EQ(X509_V_ERR_UNSPECIFIED,
1346             Verify(many_names2.get(), {many_constraints.get()},
1347                    {many_constraints.get()}, {}));
1348   EXPECT_EQ(X509_V_ERR_UNSPECIFIED,
1349             Verify(many_names3.get(), {many_constraints.get()},
1350                    {many_constraints.get()}, {}));
1351 
1352   EXPECT_EQ(X509_V_OK, Verify(some_names1.get(), {many_constraints.get()},
1353                               {many_constraints.get()}, {}));
1354   EXPECT_EQ(X509_V_OK, Verify(some_names2.get(), {many_constraints.get()},
1355                               {many_constraints.get()}, {}));
1356   EXPECT_EQ(X509_V_OK, Verify(some_names3.get(), {many_constraints.get()},
1357                               {many_constraints.get()}, {}));
1358 }
1359 
TEST(X509Test,TestPSS)1360 TEST(X509Test, TestPSS) {
1361   bssl::UniquePtr<X509> cert(CertFromPEM(kExamplePSSCert));
1362   ASSERT_TRUE(cert);
1363 
1364   bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
1365   ASSERT_TRUE(pkey);
1366 
1367   ASSERT_TRUE(X509_verify(cert.get(), pkey.get()));
1368 }
1369 
TEST(X509Test,TestPSSBadParameters)1370 TEST(X509Test, TestPSSBadParameters) {
1371   bssl::UniquePtr<X509> cert(CertFromPEM(kBadPSSCertPEM));
1372   ASSERT_TRUE(cert);
1373 
1374   bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
1375   ASSERT_TRUE(pkey);
1376 
1377   ASSERT_FALSE(X509_verify(cert.get(), pkey.get()));
1378   ERR_clear_error();
1379 }
1380 
TEST(X509Test,TestEd25519)1381 TEST(X509Test, TestEd25519) {
1382   bssl::UniquePtr<X509> cert(CertFromPEM(kEd25519Cert));
1383   ASSERT_TRUE(cert);
1384 
1385   bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
1386   ASSERT_TRUE(pkey);
1387 
1388   ASSERT_TRUE(X509_verify(cert.get(), pkey.get()));
1389 }
1390 
TEST(X509Test,TestEd25519BadParameters)1391 TEST(X509Test, TestEd25519BadParameters) {
1392   bssl::UniquePtr<X509> cert(CertFromPEM(kEd25519CertNull));
1393   ASSERT_TRUE(cert);
1394 
1395   bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
1396   ASSERT_TRUE(pkey);
1397 
1398   ASSERT_FALSE(X509_verify(cert.get(), pkey.get()));
1399 
1400   uint32_t err = ERR_get_error();
1401   ASSERT_EQ(ERR_LIB_X509, ERR_GET_LIB(err));
1402   ASSERT_EQ(X509_R_INVALID_PARAMETER, ERR_GET_REASON(err));
1403   ERR_clear_error();
1404 }
1405 
SignatureRoundTrips(EVP_MD_CTX * md_ctx,EVP_PKEY * pkey)1406 static bool SignatureRoundTrips(EVP_MD_CTX *md_ctx, EVP_PKEY *pkey) {
1407   // Make a certificate like signed with |md_ctx|'s settings.'
1408   bssl::UniquePtr<X509> cert(CertFromPEM(kLeafPEM));
1409   if (!cert || !X509_sign_ctx(cert.get(), md_ctx)) {
1410     return false;
1411   }
1412 
1413   // Ensure that |pkey| may still be used to verify the resulting signature. All
1414   // settings in |md_ctx| must have been serialized appropriately.
1415   return !!X509_verify(cert.get(), pkey);
1416 }
1417 
TEST(X509Test,RSASign)1418 TEST(X509Test, RSASign) {
1419   bssl::UniquePtr<EVP_PKEY> pkey(PrivateKeyFromPEM(kRSAKey));
1420   ASSERT_TRUE(pkey);
1421   // Test PKCS#1 v1.5.
1422   bssl::ScopedEVP_MD_CTX md_ctx;
1423   ASSERT_TRUE(
1424       EVP_DigestSignInit(md_ctx.get(), NULL, EVP_sha256(), NULL, pkey.get()));
1425   ASSERT_TRUE(SignatureRoundTrips(md_ctx.get(), pkey.get()));
1426 
1427   // Test RSA-PSS with custom parameters.
1428   md_ctx.Reset();
1429   EVP_PKEY_CTX *pkey_ctx;
1430   ASSERT_TRUE(EVP_DigestSignInit(md_ctx.get(), &pkey_ctx, EVP_sha256(), NULL,
1431                                  pkey.get()));
1432   ASSERT_TRUE(EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING));
1433   ASSERT_TRUE(EVP_PKEY_CTX_set_rsa_mgf1_md(pkey_ctx, EVP_sha512()));
1434   ASSERT_TRUE(SignatureRoundTrips(md_ctx.get(), pkey.get()));
1435 }
1436 
TEST(X509Test,Ed25519Sign)1437 TEST(X509Test, Ed25519Sign) {
1438   uint8_t pub_bytes[32], priv_bytes[64];
1439   ED25519_keypair(pub_bytes, priv_bytes);
1440 
1441   bssl::UniquePtr<EVP_PKEY> pub(
1442       EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, nullptr, pub_bytes, 32));
1443   ASSERT_TRUE(pub);
1444   bssl::UniquePtr<EVP_PKEY> priv(
1445       EVP_PKEY_new_raw_private_key(EVP_PKEY_ED25519, nullptr, priv_bytes, 32));
1446   ASSERT_TRUE(priv);
1447 
1448   bssl::ScopedEVP_MD_CTX md_ctx;
1449   ASSERT_TRUE(
1450       EVP_DigestSignInit(md_ctx.get(), nullptr, nullptr, nullptr, priv.get()));
1451   ASSERT_TRUE(SignatureRoundTrips(md_ctx.get(), pub.get()));
1452 }
1453 
PEMToDER(bssl::UniquePtr<uint8_t> * out,size_t * out_len,const char * pem)1454 static bool PEMToDER(bssl::UniquePtr<uint8_t> *out, size_t *out_len,
1455                      const char *pem) {
1456   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(pem, strlen(pem)));
1457   if (!bio) {
1458     return false;
1459   }
1460 
1461   char *name, *header;
1462   uint8_t *data;
1463   long data_len;
1464   if (!PEM_read_bio(bio.get(), &name, &header, &data, &data_len)) {
1465     fprintf(stderr, "failed to read PEM data.\n");
1466     return false;
1467   }
1468   OPENSSL_free(name);
1469   OPENSSL_free(header);
1470 
1471   out->reset(data);
1472   *out_len = data_len;
1473 
1474   return true;
1475 }
1476 
TEST(X509Test,TestFromBuffer)1477 TEST(X509Test, TestFromBuffer) {
1478   size_t data_len;
1479   bssl::UniquePtr<uint8_t> data;
1480   ASSERT_TRUE(PEMToDER(&data, &data_len, kRootCAPEM));
1481 
1482   bssl::UniquePtr<CRYPTO_BUFFER> buf(
1483       CRYPTO_BUFFER_new(data.get(), data_len, nullptr));
1484   ASSERT_TRUE(buf);
1485   bssl::UniquePtr<X509> root(X509_parse_from_buffer(buf.get()));
1486   ASSERT_TRUE(root);
1487 
1488   const uint8_t *enc_pointer = root->cert_info->enc.enc;
1489   const uint8_t *buf_pointer = CRYPTO_BUFFER_data(buf.get());
1490   ASSERT_GE(enc_pointer, buf_pointer);
1491   ASSERT_LT(enc_pointer, buf_pointer + CRYPTO_BUFFER_len(buf.get()));
1492   buf.reset();
1493 
1494   /* This ensures the X509 took a reference to |buf|, otherwise this will be a
1495    * reference to free memory and ASAN should notice. */
1496   ASSERT_EQ(0x30, enc_pointer[0]);
1497 }
1498 
TEST(X509Test,TestFromBufferWithTrailingData)1499 TEST(X509Test, TestFromBufferWithTrailingData) {
1500   size_t data_len;
1501   bssl::UniquePtr<uint8_t> data;
1502   ASSERT_TRUE(PEMToDER(&data, &data_len, kRootCAPEM));
1503 
1504   std::unique_ptr<uint8_t[]> trailing_data(new uint8_t[data_len + 1]);
1505   OPENSSL_memcpy(trailing_data.get(), data.get(), data_len);
1506 
1507   bssl::UniquePtr<CRYPTO_BUFFER> buf_trailing_data(
1508       CRYPTO_BUFFER_new(trailing_data.get(), data_len + 1, nullptr));
1509   ASSERT_TRUE(buf_trailing_data);
1510 
1511   bssl::UniquePtr<X509> root_trailing_data(
1512       X509_parse_from_buffer(buf_trailing_data.get()));
1513   ASSERT_FALSE(root_trailing_data);
1514 }
1515 
TEST(X509Test,TestFromBufferModified)1516 TEST(X509Test, TestFromBufferModified) {
1517   size_t data_len;
1518   bssl::UniquePtr<uint8_t> data;
1519   ASSERT_TRUE(PEMToDER(&data, &data_len, kRootCAPEM));
1520 
1521   bssl::UniquePtr<CRYPTO_BUFFER> buf(
1522       CRYPTO_BUFFER_new(data.get(), data_len, nullptr));
1523   ASSERT_TRUE(buf);
1524 
1525   bssl::UniquePtr<X509> root(X509_parse_from_buffer(buf.get()));
1526   ASSERT_TRUE(root);
1527 
1528   bssl::UniquePtr<ASN1_INTEGER> fourty_two(ASN1_INTEGER_new());
1529   ASN1_INTEGER_set(fourty_two.get(), 42);
1530   X509_set_serialNumber(root.get(), fourty_two.get());
1531 
1532   ASSERT_EQ(static_cast<long>(data_len), i2d_X509(root.get(), nullptr));
1533 
1534   X509_CINF_set_modified(root->cert_info);
1535 
1536   ASSERT_NE(static_cast<long>(data_len), i2d_X509(root.get(), nullptr));
1537 }
1538 
TEST(X509Test,TestFromBufferReused)1539 TEST(X509Test, TestFromBufferReused) {
1540   size_t data_len;
1541   bssl::UniquePtr<uint8_t> data;
1542   ASSERT_TRUE(PEMToDER(&data, &data_len, kRootCAPEM));
1543 
1544   bssl::UniquePtr<CRYPTO_BUFFER> buf(
1545       CRYPTO_BUFFER_new(data.get(), data_len, nullptr));
1546   ASSERT_TRUE(buf);
1547 
1548   bssl::UniquePtr<X509> root(X509_parse_from_buffer(buf.get()));
1549   ASSERT_TRUE(root);
1550 
1551   size_t data2_len;
1552   bssl::UniquePtr<uint8_t> data2;
1553   ASSERT_TRUE(PEMToDER(&data2, &data2_len, kLeafPEM));
1554 
1555   X509 *x509p = root.get();
1556   const uint8_t *inp = data2.get();
1557   X509 *ret = d2i_X509(&x509p, &inp, data2_len);
1558   ASSERT_EQ(root.get(), ret);
1559   ASSERT_EQ(nullptr, root->buf);
1560 
1561   // Free |data2| and ensure that |root| took its own copy. Otherwise the
1562   // following will trigger a use-after-free.
1563   data2.reset();
1564 
1565   uint8_t *i2d = nullptr;
1566   int i2d_len = i2d_X509(root.get(), &i2d);
1567   ASSERT_GE(i2d_len, 0);
1568   bssl::UniquePtr<uint8_t> i2d_storage(i2d);
1569 
1570   ASSERT_TRUE(PEMToDER(&data2, &data2_len, kLeafPEM));
1571 
1572   ASSERT_EQ(static_cast<long>(data2_len), i2d_len);
1573   ASSERT_EQ(0, OPENSSL_memcmp(data2.get(), i2d, i2d_len));
1574   ASSERT_EQ(nullptr, root->buf);
1575 }
1576 
TEST(X509Test,TestFailedParseFromBuffer)1577 TEST(X509Test, TestFailedParseFromBuffer) {
1578   static const uint8_t kNonsense[] = {1, 2, 3, 4, 5};
1579 
1580   bssl::UniquePtr<CRYPTO_BUFFER> buf(
1581       CRYPTO_BUFFER_new(kNonsense, sizeof(kNonsense), nullptr));
1582   ASSERT_TRUE(buf);
1583 
1584   bssl::UniquePtr<X509> cert(X509_parse_from_buffer(buf.get()));
1585   ASSERT_FALSE(cert);
1586   ERR_clear_error();
1587 
1588   // Test a buffer with trailing data.
1589   size_t data_len;
1590   bssl::UniquePtr<uint8_t> data;
1591   ASSERT_TRUE(PEMToDER(&data, &data_len, kRootCAPEM));
1592 
1593   std::unique_ptr<uint8_t[]> data_with_trailing_byte(new uint8_t[data_len + 1]);
1594   OPENSSL_memcpy(data_with_trailing_byte.get(), data.get(), data_len);
1595   data_with_trailing_byte[data_len] = 0;
1596 
1597   bssl::UniquePtr<CRYPTO_BUFFER> buf_with_trailing_byte(
1598       CRYPTO_BUFFER_new(data_with_trailing_byte.get(), data_len + 1, nullptr));
1599   ASSERT_TRUE(buf_with_trailing_byte);
1600 
1601   bssl::UniquePtr<X509> root(
1602       X509_parse_from_buffer(buf_with_trailing_byte.get()));
1603   ASSERT_FALSE(root);
1604   ERR_clear_error();
1605 }
1606 
TEST(X509Test,TestPrintUTCTIME)1607 TEST(X509Test, TestPrintUTCTIME) {
1608   static const struct {
1609     const char *val, *want;
1610   } asn1_utctime_tests[] = {
1611     {"", "Bad time value"},
1612 
1613     // Correct RFC 5280 form. Test years < 2000 and > 2000.
1614     {"090303125425Z", "Mar  3 12:54:25 2009 GMT"},
1615     {"900303125425Z", "Mar  3 12:54:25 1990 GMT"},
1616     {"000303125425Z", "Mar  3 12:54:25 2000 GMT"},
1617 
1618     // Correct form, bad values.
1619     {"000000000000Z", "Bad time value"},
1620     {"999999999999Z", "Bad time value"},
1621 
1622     // Missing components. Not legal RFC 5280, but permitted.
1623     {"090303125425", "Mar  3 12:54:25 2009"},
1624     {"9003031254", "Mar  3 12:54:00 1990"},
1625     {"9003031254Z", "Mar  3 12:54:00 1990 GMT"},
1626 
1627     // GENERALIZEDTIME confused for UTCTIME.
1628     {"20090303125425Z", "Bad time value"},
1629 
1630     // Legal ASN.1, but not legal RFC 5280.
1631     {"9003031254+0800", "Bad time value"},
1632     {"9003031254-0800", "Bad time value"},
1633 
1634     // Trailing garbage.
1635     {"9003031254Z ", "Bad time value"},
1636   };
1637 
1638   for (auto t : asn1_utctime_tests) {
1639     SCOPED_TRACE(t.val);
1640     bssl::UniquePtr<ASN1_UTCTIME> tm(ASN1_UTCTIME_new());
1641     bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem()));
1642 
1643     // Use this instead of ASN1_UTCTIME_set() because some callers get
1644     // type-confused and pass ASN1_GENERALIZEDTIME to ASN1_UTCTIME_print().
1645     // ASN1_UTCTIME_set_string() is stricter, and would reject the inputs in
1646     // question.
1647     ASSERT_TRUE(ASN1_STRING_set(tm.get(), t.val, strlen(t.val)));
1648     const int ok = ASN1_UTCTIME_print(bio.get(), tm.get());
1649 
1650     const uint8_t *contents;
1651     size_t len;
1652     ASSERT_TRUE(BIO_mem_contents(bio.get(), &contents, &len));
1653     EXPECT_EQ(ok, (strcmp(t.want, "Bad time value") != 0) ? 1 : 0);
1654     EXPECT_EQ(t.want,
1655               std::string(reinterpret_cast<const char *>(contents), len));
1656   }
1657 }
1658 
TEST(X509Test,PrettyPrintIntegers)1659 TEST(X509Test, PrettyPrintIntegers) {
1660   static const char *kTests[] = {
1661       // Small numbers are pretty-printed in decimal.
1662       "0",
1663       "-1",
1664       "1",
1665       "42",
1666       "-42",
1667       "256",
1668       "-256",
1669       // Large numbers are pretty-printed in hex to avoid taking quadratic time.
1670       "0x0123456789",
1671       "-0x0123456789",
1672   };
1673   for (const char *in : kTests) {
1674     SCOPED_TRACE(in);
1675     BIGNUM *bn = nullptr;
1676     ASSERT_TRUE(BN_asc2bn(&bn, in));
1677     bssl::UniquePtr<BIGNUM> free_bn(bn);
1678 
1679     {
1680       bssl::UniquePtr<ASN1_INTEGER> asn1(BN_to_ASN1_INTEGER(bn, nullptr));
1681       ASSERT_TRUE(asn1);
1682       bssl::UniquePtr<char> out(i2s_ASN1_INTEGER(nullptr, asn1.get()));
1683       ASSERT_TRUE(out.get());
1684       EXPECT_STREQ(in, out.get());
1685     }
1686 
1687     {
1688       bssl::UniquePtr<ASN1_ENUMERATED> asn1(BN_to_ASN1_ENUMERATED(bn, nullptr));
1689       ASSERT_TRUE(asn1);
1690       bssl::UniquePtr<char> out(i2s_ASN1_ENUMERATED(nullptr, asn1.get()));
1691       ASSERT_TRUE(out.get());
1692       EXPECT_STREQ(in, out.get());
1693     }
1694   }
1695 }
1696 
TEST(X509Test,X509NameSet)1697 TEST(X509Test, X509NameSet) {
1698   bssl::UniquePtr<X509_NAME> name(X509_NAME_new());
1699   EXPECT_TRUE(X509_NAME_add_entry_by_txt(
1700       name.get(), "C", MBSTRING_ASC, reinterpret_cast<const uint8_t *>("US"),
1701       -1, -1, 0));
1702   EXPECT_EQ(X509_NAME_entry_count(name.get()), 1);
1703   EXPECT_TRUE(X509_NAME_add_entry_by_txt(
1704       name.get(), "C", MBSTRING_ASC, reinterpret_cast<const uint8_t *>("CA"),
1705       -1, -1, 0));
1706   EXPECT_EQ(X509_NAME_entry_count(name.get()), 2);
1707   EXPECT_TRUE(X509_NAME_add_entry_by_txt(
1708       name.get(), "C", MBSTRING_ASC, reinterpret_cast<const uint8_t *>("UK"),
1709       -1, -1, 0));
1710   EXPECT_EQ(X509_NAME_entry_count(name.get()), 3);
1711   EXPECT_TRUE(X509_NAME_add_entry_by_txt(
1712       name.get(), "C", MBSTRING_ASC, reinterpret_cast<const uint8_t *>("JP"),
1713       -1, 1, 0));
1714   EXPECT_EQ(X509_NAME_entry_count(name.get()), 4);
1715 
1716   // Check that the correct entries get incremented when inserting new entry.
1717   EXPECT_EQ(X509_NAME_ENTRY_set(X509_NAME_get_entry(name.get(), 1)), 1);
1718   EXPECT_EQ(X509_NAME_ENTRY_set(X509_NAME_get_entry(name.get(), 2)), 2);
1719 }
1720 
TEST(X509Test,StringDecoding)1721 TEST(X509Test, StringDecoding) {
1722   static const struct {
1723     std::vector<uint8_t> in;
1724     int type;
1725     const char *expected;
1726   } kTests[] = {
1727       // Non-minimal, two-byte UTF-8.
1728       {{0xc0, 0x81}, V_ASN1_UTF8STRING, nullptr},
1729       // Non-minimal, three-byte UTF-8.
1730       {{0xe0, 0x80, 0x81}, V_ASN1_UTF8STRING, nullptr},
1731       // Non-minimal, four-byte UTF-8.
1732       {{0xf0, 0x80, 0x80, 0x81}, V_ASN1_UTF8STRING, nullptr},
1733       // Truncated, four-byte UTF-8.
1734       {{0xf0, 0x80, 0x80}, V_ASN1_UTF8STRING, nullptr},
1735       // Low-surrogate value.
1736       {{0xed, 0xa0, 0x80}, V_ASN1_UTF8STRING, nullptr},
1737       // High-surrogate value.
1738       {{0xed, 0xb0, 0x81}, V_ASN1_UTF8STRING, nullptr},
1739       // Initial BOMs should be rejected from UCS-2 and UCS-4.
1740       {{0xfe, 0xff, 0, 88}, V_ASN1_BMPSTRING, nullptr},
1741       {{0, 0, 0xfe, 0xff, 0, 0, 0, 88}, V_ASN1_UNIVERSALSTRING, nullptr},
1742       // Otherwise, BOMs should pass through.
1743       {{0, 88, 0xfe, 0xff}, V_ASN1_BMPSTRING, "X\xef\xbb\xbf"},
1744       {{0, 0, 0, 88, 0, 0, 0xfe, 0xff}, V_ASN1_UNIVERSALSTRING,
1745        "X\xef\xbb\xbf"},
1746       // The maximum code-point should pass though.
1747       {{0, 16, 0xff, 0xfd}, V_ASN1_UNIVERSALSTRING, "\xf4\x8f\xbf\xbd"},
1748       // Values outside the Unicode space should not.
1749       {{0, 17, 0, 0}, V_ASN1_UNIVERSALSTRING, nullptr},
1750       // Non-characters should be rejected.
1751       {{0, 1, 0xff, 0xff}, V_ASN1_UNIVERSALSTRING, nullptr},
1752       {{0, 1, 0xff, 0xfe}, V_ASN1_UNIVERSALSTRING, nullptr},
1753       {{0, 0, 0xfd, 0xd5}, V_ASN1_UNIVERSALSTRING, nullptr},
1754       // BMPString is UCS-2, not UTF-16, so surrogate pairs are invalid.
1755       {{0xd8, 0, 0xdc, 1}, V_ASN1_BMPSTRING, nullptr},
1756   };
1757 
1758   for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kTests); i++) {
1759     SCOPED_TRACE(i);
1760     const auto& test = kTests[i];
1761     ASN1_STRING s;
1762     s.type = test.type;
1763     s.data = const_cast<uint8_t*>(test.in.data());
1764     s.length = test.in.size();
1765 
1766     uint8_t *utf8;
1767     const int utf8_len = ASN1_STRING_to_UTF8(&utf8, &s);
1768     EXPECT_EQ(utf8_len < 0, test.expected == nullptr);
1769     if (utf8_len >= 0) {
1770       if (test.expected != nullptr) {
1771         EXPECT_EQ(Bytes(test.expected), Bytes(utf8, utf8_len));
1772       }
1773       OPENSSL_free(utf8);
1774     } else {
1775       ERR_clear_error();
1776     }
1777   }
1778 }
1779 
TEST(X509Test,NoBasicConstraintsCertSign)1780 TEST(X509Test, NoBasicConstraintsCertSign) {
1781   bssl::UniquePtr<X509> root(CertFromPEM(kSANTypesRoot));
1782   bssl::UniquePtr<X509> intermediate(
1783       CertFromPEM(kNoBasicConstraintsCertSignIntermediate));
1784   bssl::UniquePtr<X509> leaf(CertFromPEM(kNoBasicConstraintsCertSignLeaf));
1785 
1786   ASSERT_TRUE(root);
1787   ASSERT_TRUE(intermediate);
1788   ASSERT_TRUE(leaf);
1789 
1790   // The intermediate has keyUsage certSign, but is not marked as a CA in the
1791   // basicConstraints.
1792   EXPECT_EQ(X509_V_ERR_INVALID_CA,
1793             Verify(leaf.get(), {root.get()}, {intermediate.get()}, {}, 0));
1794 }
1795 
TEST(X509Test,NoBasicConstraintsNetscapeCA)1796 TEST(X509Test, NoBasicConstraintsNetscapeCA) {
1797   bssl::UniquePtr<X509> root(CertFromPEM(kSANTypesRoot));
1798   bssl::UniquePtr<X509> intermediate(
1799       CertFromPEM(kNoBasicConstraintsNetscapeCAIntermediate));
1800   bssl::UniquePtr<X509> leaf(CertFromPEM(kNoBasicConstraintsNetscapeCALeaf));
1801 
1802   ASSERT_TRUE(root);
1803   ASSERT_TRUE(intermediate);
1804   ASSERT_TRUE(leaf);
1805 
1806   // The intermediate has a Netscape certificate type of "SSL CA", but is not
1807   // marked as a CA in the basicConstraints.
1808   EXPECT_EQ(X509_V_ERR_INVALID_CA,
1809             Verify(leaf.get(), {root.get()}, {intermediate.get()}, {}, 0));
1810 }
1811 
TEST(X509Test,MismatchAlgorithms)1812 TEST(X509Test, MismatchAlgorithms) {
1813   bssl::UniquePtr<X509> cert(CertFromPEM(kSelfSignedMismatchAlgorithms));
1814   ASSERT_TRUE(cert);
1815 
1816   bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
1817   ASSERT_TRUE(pkey);
1818 
1819   EXPECT_FALSE(X509_verify(cert.get(), pkey.get()));
1820   uint32_t err = ERR_get_error();
1821   EXPECT_EQ(ERR_LIB_X509, ERR_GET_LIB(err));
1822   EXPECT_EQ(X509_R_SIGNATURE_ALGORITHM_MISMATCH, ERR_GET_REASON(err));
1823 }
1824 
TEST(X509Test,PEMX509Info)1825 TEST(X509Test, PEMX509Info) {
1826   std::string cert = kRootCAPEM;
1827   auto cert_obj = CertFromPEM(kRootCAPEM);
1828   ASSERT_TRUE(cert_obj);
1829 
1830   std::string rsa = kRSAKey;
1831   auto rsa_obj = PrivateKeyFromPEM(kRSAKey);
1832   ASSERT_TRUE(rsa_obj);
1833 
1834   std::string crl = kBasicCRL;
1835   auto crl_obj = CRLFromPEM(kBasicCRL);
1836   ASSERT_TRUE(crl_obj);
1837 
1838   std::string unknown =
1839       "-----BEGIN UNKNOWN-----\n"
1840       "AAAA\n"
1841       "-----END UNKNOWN-----\n";
1842 
1843   std::string invalid =
1844       "-----BEGIN CERTIFICATE-----\n"
1845       "AAAA\n"
1846       "-----END CERTIFICATE-----\n";
1847 
1848   // Each X509_INFO contains at most one certificate, CRL, etc. The format
1849   // creates a new X509_INFO when a repeated type is seen.
1850   std::string pem =
1851       // The first few entries have one of everything in different orders.
1852       cert + rsa + crl +
1853       rsa + crl + cert +
1854       // Unknown types are ignored.
1855       crl + unknown + cert + rsa +
1856       // Seeing a new certificate starts a new entry, so now we have a bunch of
1857       // certificate-only entries.
1858       cert + cert + cert +
1859       // The key folds into the certificate's entry.
1860       cert + rsa +
1861       // Doubled keys also start new entries.
1862       rsa + rsa + rsa + rsa + crl +
1863       // As do CRLs.
1864       crl + crl;
1865 
1866   const struct ExpectedInfo {
1867     const X509 *cert;
1868     const EVP_PKEY *key;
1869     const X509_CRL *crl;
1870   } kExpected[] = {
1871     {cert_obj.get(), rsa_obj.get(), crl_obj.get()},
1872     {cert_obj.get(), rsa_obj.get(), crl_obj.get()},
1873     {cert_obj.get(), rsa_obj.get(), crl_obj.get()},
1874     {cert_obj.get(), nullptr, nullptr},
1875     {cert_obj.get(), nullptr, nullptr},
1876     {cert_obj.get(), nullptr, nullptr},
1877     {cert_obj.get(), rsa_obj.get(), nullptr},
1878     {nullptr, rsa_obj.get(), nullptr},
1879     {nullptr, rsa_obj.get(), nullptr},
1880     {nullptr, rsa_obj.get(), nullptr},
1881     {nullptr, rsa_obj.get(), crl_obj.get()},
1882     {nullptr, nullptr, crl_obj.get()},
1883     {nullptr, nullptr, crl_obj.get()},
1884   };
1885 
1886   auto check_info = [](const ExpectedInfo *expected, const X509_INFO *info) {
1887     if (expected->cert != nullptr) {
1888       EXPECT_EQ(0, X509_cmp(expected->cert, info->x509));
1889     } else {
1890       EXPECT_EQ(nullptr, info->x509);
1891     }
1892     if (expected->crl != nullptr) {
1893       EXPECT_EQ(0, X509_CRL_cmp(expected->crl, info->crl));
1894     } else {
1895       EXPECT_EQ(nullptr, info->crl);
1896     }
1897     if (expected->key != nullptr) {
1898       ASSERT_NE(nullptr, info->x_pkey);
1899       // EVP_PKEY_cmp returns one if the keys are equal.
1900       EXPECT_EQ(1, EVP_PKEY_cmp(expected->key, info->x_pkey->dec_pkey));
1901     } else {
1902       EXPECT_EQ(nullptr, info->x_pkey);
1903     }
1904   };
1905 
1906   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(pem.data(), pem.size()));
1907   ASSERT_TRUE(bio);
1908   bssl::UniquePtr<STACK_OF(X509_INFO)> infos(
1909       PEM_X509_INFO_read_bio(bio.get(), nullptr, nullptr, nullptr));
1910   ASSERT_TRUE(infos);
1911   ASSERT_EQ(OPENSSL_ARRAY_SIZE(kExpected), sk_X509_INFO_num(infos.get()));
1912   for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kExpected); i++) {
1913     SCOPED_TRACE(i);
1914     check_info(&kExpected[i], sk_X509_INFO_value(infos.get(), i));
1915   }
1916 
1917   // Passing an existing stack appends to it.
1918   bio.reset(BIO_new_mem_buf(pem.data(), pem.size()));
1919   ASSERT_TRUE(bio);
1920   ASSERT_EQ(infos.get(),
1921             PEM_X509_INFO_read_bio(bio.get(), infos.get(), nullptr, nullptr));
1922   ASSERT_EQ(2 * OPENSSL_ARRAY_SIZE(kExpected), sk_X509_INFO_num(infos.get()));
1923   for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kExpected); i++) {
1924     SCOPED_TRACE(i);
1925     check_info(&kExpected[i], sk_X509_INFO_value(infos.get(), i));
1926     check_info(
1927         &kExpected[i],
1928         sk_X509_INFO_value(infos.get(), i + OPENSSL_ARRAY_SIZE(kExpected)));
1929   }
1930 
1931   // Gracefully handle errors in both the append and fresh cases.
1932   std::string bad_pem = cert + cert + invalid;
1933 
1934   bio.reset(BIO_new_mem_buf(bad_pem.data(), bad_pem.size()));
1935   ASSERT_TRUE(bio);
1936   bssl::UniquePtr<STACK_OF(X509_INFO)> infos2(
1937       PEM_X509_INFO_read_bio(bio.get(), nullptr, nullptr, nullptr));
1938   EXPECT_FALSE(infos2);
1939 
1940   bio.reset(BIO_new_mem_buf(bad_pem.data(), bad_pem.size()));
1941   ASSERT_TRUE(bio);
1942   EXPECT_FALSE(
1943       PEM_X509_INFO_read_bio(bio.get(), infos.get(), nullptr, nullptr));
1944   EXPECT_EQ(2 * OPENSSL_ARRAY_SIZE(kExpected), sk_X509_INFO_num(infos.get()));
1945 }
1946 
TEST(X509Test,ReadBIOEmpty)1947 TEST(X509Test, ReadBIOEmpty) {
1948   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(nullptr, 0));
1949   ASSERT_TRUE(bio);
1950 
1951   // CPython expects |ASN1_R_HEADER_TOO_LONG| on EOF, to terminate a series of
1952   // certificates.
1953   bssl::UniquePtr<X509> x509(d2i_X509_bio(bio.get(), nullptr));
1954   EXPECT_FALSE(x509);
1955   uint32_t err = ERR_get_error();
1956   EXPECT_EQ(ERR_LIB_ASN1, ERR_GET_LIB(err));
1957   EXPECT_EQ(ASN1_R_HEADER_TOO_LONG, ERR_GET_REASON(err));
1958 }
1959 
TEST(X509Test,ReadBIOOneByte)1960 TEST(X509Test, ReadBIOOneByte) {
1961   bssl::UniquePtr<BIO> bio(BIO_new_mem_buf("\x30", 1));
1962   ASSERT_TRUE(bio);
1963 
1964   // CPython expects |ASN1_R_HEADER_TOO_LONG| on EOF, to terminate a series of
1965   // certificates. This EOF appeared after some data, however, so we do not wish
1966   // to signal EOF.
1967   bssl::UniquePtr<X509> x509(d2i_X509_bio(bio.get(), nullptr));
1968   EXPECT_FALSE(x509);
1969   uint32_t err = ERR_get_error();
1970   EXPECT_EQ(ERR_LIB_ASN1, ERR_GET_LIB(err));
1971   EXPECT_EQ(ASN1_R_NOT_ENOUGH_DATA, ERR_GET_REASON(err));
1972 }
1973 
TEST(X509Test,PartialBIOReturn)1974 TEST(X509Test, PartialBIOReturn) {
1975   // Create a filter BIO that only reads and writes one byte at a time.
1976   bssl::UniquePtr<BIO_METHOD> method(BIO_meth_new(0, nullptr));
1977   ASSERT_TRUE(method);
1978   ASSERT_TRUE(BIO_meth_set_create(method.get(), [](BIO *b) -> int {
1979     BIO_set_init(b, 1);
1980     return 1;
1981   }));
1982   ASSERT_TRUE(
1983       BIO_meth_set_read(method.get(), [](BIO *b, char *out, int len) -> int {
1984         return BIO_read(BIO_next(b), out, std::min(len, 1));
1985       }));
1986   ASSERT_TRUE(BIO_meth_set_write(
1987       method.get(), [](BIO *b, const char *in, int len) -> int {
1988         return BIO_write(BIO_next(b), in, std::min(len, 1));
1989       }));
1990 
1991   bssl::UniquePtr<BIO> bio(BIO_new(method.get()));
1992   ASSERT_TRUE(bio);
1993   BIO *mem_bio = BIO_new(BIO_s_mem());
1994   ASSERT_TRUE(mem_bio);
1995   BIO_push(bio.get(), mem_bio);  // BIO_push takes ownership.
1996 
1997   bssl::UniquePtr<X509> cert(CertFromPEM(kLeafPEM));
1998   ASSERT_TRUE(cert);
1999   uint8_t *der = nullptr;
2000   int der_len = i2d_X509(cert.get(), &der);
2001   ASSERT_GT(der_len, 0);
2002   bssl::UniquePtr<uint8_t> free_der(der);
2003 
2004   // Write the certificate into the BIO. Though we only write one byte at a
2005   // time, the write should succeed.
2006   ASSERT_EQ(1, i2d_X509_bio(bio.get(), cert.get()));
2007   const uint8_t *der2;
2008   size_t der2_len;
2009   ASSERT_TRUE(BIO_mem_contents(mem_bio, &der2, &der2_len));
2010   EXPECT_EQ(Bytes(der, static_cast<size_t>(der_len)), Bytes(der2, der2_len));
2011 
2012   // Read the certificate back out of the BIO. Though we only read one byte at a
2013   // time, the read should succeed.
2014   bssl::UniquePtr<X509> cert2(d2i_X509_bio(bio.get(), nullptr));
2015   ASSERT_TRUE(cert2);
2016   EXPECT_EQ(0, X509_cmp(cert.get(), cert2.get()));
2017 }
2018 
TEST(X509Test,CommonNameFallback)2019 TEST(X509Test, CommonNameFallback) {
2020   bssl::UniquePtr<X509> root = CertFromPEM(kSANTypesRoot);
2021   ASSERT_TRUE(root);
2022   bssl::UniquePtr<X509> with_sans = CertFromPEM(kCommonNameWithSANs);
2023   ASSERT_TRUE(with_sans);
2024   bssl::UniquePtr<X509> without_sans = CertFromPEM(kCommonNameWithoutSANs);
2025   ASSERT_TRUE(without_sans);
2026   bssl::UniquePtr<X509> with_email = CertFromPEM(kCommonNameWithEmailSAN);
2027   ASSERT_TRUE(with_email);
2028   bssl::UniquePtr<X509> with_ip = CertFromPEM(kCommonNameWithIPSAN);
2029   ASSERT_TRUE(with_ip);
2030 
2031   auto verify_cert = [&](X509 *leaf, unsigned flags, const char *host) {
2032     return Verify(
2033         leaf, {root.get()}, {}, {}, 0, false, [&](X509_VERIFY_PARAM *param) {
2034           ASSERT_TRUE(X509_VERIFY_PARAM_set1_host(param, host, strlen(host)));
2035           X509_VERIFY_PARAM_set_hostflags(param, flags);
2036         });
2037   };
2038 
2039   // By default, the common name is ignored if the SAN list is present but
2040   // otherwise is checked.
2041   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2042             verify_cert(with_sans.get(), 0 /* no flags */, "foo.host1.test"));
2043   EXPECT_EQ(X509_V_OK,
2044             verify_cert(with_sans.get(), 0 /* no flags */, "foo.host2.test"));
2045   EXPECT_EQ(X509_V_OK,
2046             verify_cert(with_sans.get(), 0 /* no flags */, "foo.host3.test"));
2047   EXPECT_EQ(X509_V_OK, verify_cert(without_sans.get(), 0 /* no flags */,
2048                                    "foo.host1.test"));
2049   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2050             verify_cert(with_email.get(), 0 /* no flags */, "foo.host1.test"));
2051   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2052             verify_cert(with_ip.get(), 0 /* no flags */, "foo.host1.test"));
2053 
2054   // X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT is ignored.
2055   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2056             verify_cert(with_sans.get(), X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2057                         "foo.host1.test"));
2058   EXPECT_EQ(X509_V_OK,
2059             verify_cert(with_sans.get(), X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2060                         "foo.host2.test"));
2061   EXPECT_EQ(X509_V_OK,
2062             verify_cert(with_sans.get(), X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2063                         "foo.host3.test"));
2064   EXPECT_EQ(X509_V_OK, verify_cert(without_sans.get(),
2065                                    X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2066                                    "foo.host1.test"));
2067   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2068             verify_cert(with_email.get(), X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2069                         "foo.host1.test"));
2070   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2071             verify_cert(with_ip.get(), X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT,
2072                         "foo.host1.test"));
2073 
2074   // X509_CHECK_FLAG_NEVER_CHECK_SUBJECT implements the correct behavior: the
2075   // common name is never checked.
2076   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2077             verify_cert(with_sans.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2078                         "foo.host1.test"));
2079   EXPECT_EQ(X509_V_OK,
2080             verify_cert(with_sans.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2081                         "foo.host2.test"));
2082   EXPECT_EQ(X509_V_OK,
2083             verify_cert(with_sans.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2084                         "foo.host3.test"));
2085   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2086             verify_cert(without_sans.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2087                         "foo.host1.test"));
2088   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2089             verify_cert(with_email.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2090                         "foo.host1.test"));
2091   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2092             verify_cert(with_ip.get(), X509_CHECK_FLAG_NEVER_CHECK_SUBJECT,
2093                         "foo.host1.test"));
2094 }
2095 
TEST(X509Test,LooksLikeDNSName)2096 TEST(X509Test, LooksLikeDNSName) {
2097     static const char *kValid[] = {
2098         "example.com",
2099         "eXample123-.com",
2100         "*.example.com",
2101         "exa_mple.com",
2102         "example.com.",
2103         "project-dev:us-central1:main",
2104     };
2105     static const char *kInvalid[] = {
2106         "-eXample123-.com",
2107         "",
2108         ".",
2109         "*",
2110         "*.",
2111         "example..com",
2112         ".example.com",
2113         "example.com..",
2114         "*foo.example.com",
2115         "foo.*.example.com",
2116         "foo,bar",
2117     };
2118 
2119     for (const char *str : kValid) {
2120       SCOPED_TRACE(str);
2121       EXPECT_TRUE(x509v3_looks_like_dns_name(
2122           reinterpret_cast<const uint8_t *>(str), strlen(str)));
2123     }
2124     for (const char *str : kInvalid) {
2125       SCOPED_TRACE(str);
2126       EXPECT_FALSE(x509v3_looks_like_dns_name(
2127           reinterpret_cast<const uint8_t *>(str), strlen(str)));
2128     }
2129 }
2130 
TEST(X509Test,CommonNameAndNameConstraints)2131 TEST(X509Test, CommonNameAndNameConstraints) {
2132   bssl::UniquePtr<X509> root = CertFromPEM(kSANTypesRoot);
2133   ASSERT_TRUE(root);
2134   bssl::UniquePtr<X509> intermediate = CertFromPEM(kConstrainedIntermediate);
2135   ASSERT_TRUE(intermediate);
2136   bssl::UniquePtr<X509> permitted = CertFromPEM(kCommonNamePermittedLeaf);
2137   ASSERT_TRUE(permitted);
2138   bssl::UniquePtr<X509> not_permitted =
2139       CertFromPEM(kCommonNameNotPermittedLeaf);
2140   ASSERT_TRUE(not_permitted);
2141   bssl::UniquePtr<X509> not_permitted_with_sans =
2142       CertFromPEM(kCommonNameNotPermittedWithSANsLeaf);
2143   ASSERT_TRUE(not_permitted_with_sans);
2144   bssl::UniquePtr<X509> not_dns = CertFromPEM(kCommonNameNotDNSLeaf);
2145   ASSERT_TRUE(not_dns);
2146 
2147   auto verify_cert = [&](X509 *leaf, unsigned flags, const char *host) {
2148     return Verify(
2149         leaf, {root.get()}, {intermediate.get()}, {}, 0, false,
2150         [&](X509_VERIFY_PARAM *param) {
2151           ASSERT_TRUE(X509_VERIFY_PARAM_set1_host(param, host, strlen(host)));
2152           X509_VERIFY_PARAM_set_hostflags(param, flags);
2153         });
2154   };
2155 
2156   // Certificates which would otherwise trigger the common name fallback are
2157   // rejected whenever there are name constraints. We do this whether or not
2158   // the common name matches the constraints.
2159   EXPECT_EQ(
2160       X509_V_ERR_NAME_CONSTRAINTS_WITHOUT_SANS,
2161       verify_cert(permitted.get(), 0 /* no flags */, kCommonNamePermitted));
2162   EXPECT_EQ(X509_V_ERR_NAME_CONSTRAINTS_WITHOUT_SANS,
2163             verify_cert(not_permitted.get(), 0 /* no flags */,
2164                         kCommonNameNotPermitted));
2165 
2166   // This occurs even if the built-in name checks aren't used. The caller may
2167   // separately call |X509_check_host|.
2168   EXPECT_EQ(X509_V_ERR_NAME_CONSTRAINTS_WITHOUT_SANS,
2169             Verify(not_permitted.get(), {root.get()}, {intermediate.get()}, {},
2170                    0 /* no flags */, false, nullptr));
2171 
2172   // If the leaf certificate has SANs, the common name fallback is always
2173   // disabled, so the name constraints do not apply.
2174   EXPECT_EQ(X509_V_OK, Verify(not_permitted_with_sans.get(), {root.get()},
2175                               {intermediate.get()}, {}, 0, false, nullptr));
2176   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2177             verify_cert(not_permitted_with_sans.get(), 0 /* no flags */,
2178                         kCommonNameNotPermittedWithSANs));
2179 
2180   // If the common name does not look like a DNS name, we apply neither name
2181   // constraints nor common name fallback.
2182   EXPECT_EQ(X509_V_OK, Verify(not_dns.get(), {root.get()}, {intermediate.get()},
2183                               {}, 0, false, nullptr));
2184   EXPECT_EQ(X509_V_ERR_HOSTNAME_MISMATCH,
2185             verify_cert(not_dns.get(), 0 /* no flags */, kCommonNameNotDNS));
2186 }
2187 
TEST(X509Test,ServerGatedCryptoEKUs)2188 TEST(X509Test, ServerGatedCryptoEKUs) {
2189   bssl::UniquePtr<X509> root = CertFromPEM(kSANTypesRoot);
2190   ASSERT_TRUE(root);
2191   bssl::UniquePtr<X509> ms_sgc = CertFromPEM(kMicrosoftSGCCert);
2192   ASSERT_TRUE(ms_sgc);
2193   bssl::UniquePtr<X509> ns_sgc = CertFromPEM(kNetscapeSGCCert);
2194   ASSERT_TRUE(ns_sgc);
2195   bssl::UniquePtr<X509> server_eku = CertFromPEM(kServerEKUCert);
2196   ASSERT_TRUE(server_eku);
2197   bssl::UniquePtr<X509> server_eku_plus_ms_sgc =
2198       CertFromPEM(kServerEKUPlusMicrosoftSGCCert);
2199   ASSERT_TRUE(server_eku_plus_ms_sgc);
2200   bssl::UniquePtr<X509> any_eku = CertFromPEM(kAnyEKU);
2201   ASSERT_TRUE(any_eku);
2202   bssl::UniquePtr<X509> no_eku = CertFromPEM(kNoEKU);
2203   ASSERT_TRUE(no_eku);
2204 
2205   auto verify_cert = [&root](X509 *leaf) {
2206     return Verify(leaf, {root.get()}, /*intermediates=*/{}, /*crls=*/{},
2207                   /*flags=*/0, /*use_additional_untrusted=*/false,
2208                   [&](X509_VERIFY_PARAM *param) {
2209                     ASSERT_TRUE(X509_VERIFY_PARAM_set_purpose(
2210                         param, X509_PURPOSE_SSL_SERVER));
2211                   });
2212   };
2213 
2214   // Neither the Microsoft nor Netscape SGC EKU should be sufficient for
2215   // |X509_PURPOSE_SSL_SERVER|. The "any" EKU probably, technically, should be.
2216   // However, we've never accepted it and it's not acceptable in leaf
2217   // certificates by the Baseline, so perhaps we don't need this complexity.
2218   for (X509 *leaf : {ms_sgc.get(), ns_sgc.get(), any_eku.get()}) {
2219     EXPECT_EQ(X509_V_ERR_INVALID_PURPOSE, verify_cert(leaf));
2220   }
2221 
2222   // The server-auth EKU is sufficient, and it doesn't matter if an SGC EKU is
2223   // also included. Lastly, not specifying an EKU is also valid.
2224   for (X509 *leaf : {server_eku.get(), server_eku_plus_ms_sgc.get(),
2225                      no_eku.get()}) {
2226     EXPECT_EQ(X509_V_OK, verify_cert(leaf));
2227   }
2228 }
2229 
TEST(X509Test,GeneralName)2230 TEST(X509Test, GeneralName)  {
2231   const std::vector<uint8_t> kNames[] = {
2232       // [0] {
2233       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2234       //   [0] {
2235       //     SEQUENCE {}
2236       //   }
2237       // }
2238       {0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2239        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x30, 0x00},
2240       // [0] {
2241       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2242       //   [0] {
2243       //     [APPLICATION 0] {}
2244       //   }
2245       // }
2246       {0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2247        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x60, 0x00},
2248       // [0] {
2249       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2250       //   [0] {
2251       //     UTF8String { "a" }
2252       //   }
2253       // }
2254       {0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2255        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x61},
2256       // [0] {
2257       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.2 }
2258       //   [0] {
2259       //     UTF8String { "a" }
2260       //   }
2261       // }
2262       {0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2263        0x01, 0x84, 0xb7, 0x09, 0x02, 0x02, 0xa0, 0x03, 0x0c, 0x01, 0x61},
2264       // [0] {
2265       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2266       //   [0] {
2267       //     UTF8String { "b" }
2268       //   }
2269       // }
2270       {0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2271        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x62},
2272       // [0] {
2273       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2274       //   [0] {
2275       //     BOOLEAN { TRUE }
2276       //   }
2277       // }
2278       {0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2279        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0xff},
2280       // [0] {
2281       //   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
2282       //   [0] {
2283       //     BOOLEAN { FALSE }
2284       //   }
2285       // }
2286       {0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
2287        0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0x00},
2288       // [1 PRIMITIVE] { "a" }
2289       {0x81, 0x01, 0x61},
2290       // [1 PRIMITIVE] { "b" }
2291       {0x81, 0x01, 0x62},
2292       // [2 PRIMITIVE] { "a" }
2293       {0x82, 0x01, 0x61},
2294       // [2 PRIMITIVE] { "b" }
2295       {0x82, 0x01, 0x62},
2296       // [4] {
2297       //   SEQUENCE {
2298       //     SET {
2299       //       SEQUENCE {
2300       //         # commonName
2301       //         OBJECT_IDENTIFIER { 2.5.4.3 }
2302       //         UTF8String { "a" }
2303       //       }
2304       //     }
2305       //   }
2306       // }
2307       {0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55, 0x04,
2308        0x03, 0x0c, 0x01, 0x61},
2309       // [4] {
2310       //   SEQUENCE {
2311       //     SET {
2312       //       SEQUENCE {
2313       //         # commonName
2314       //         OBJECT_IDENTIFIER { 2.5.4.3 }
2315       //         UTF8String { "b" }
2316       //       }
2317       //     }
2318       //   }
2319       // }
2320       {0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55, 0x04,
2321        0x03, 0x0c, 0x01, 0x62},
2322       // [5] {
2323       //   [1] {
2324       //     UTF8String { "a" }
2325       //   }
2326       // }
2327       {0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x61},
2328       // [5] {
2329       //   [1] {
2330       //     UTF8String { "b" }
2331       //   }
2332       // }
2333       {0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x62},
2334       // [5] {
2335       //   [0] {
2336       //     UTF8String {}
2337       //   }
2338       //   [1] {
2339       //     UTF8String { "a" }
2340       //   }
2341       // }
2342       {0xa5, 0x09, 0xa0, 0x02, 0x0c, 0x00, 0xa1, 0x03, 0x0c, 0x01, 0x61},
2343       // [5] {
2344       //   [0] {
2345       //     UTF8String { "a" }
2346       //   }
2347       //   [1] {
2348       //     UTF8String { "a" }
2349       //   }
2350       // }
2351       {0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x61, 0xa1, 0x03, 0x0c, 0x01, 0x61},
2352       // [5] {
2353       //   [0] {
2354       //     UTF8String { "b" }
2355       //   }
2356       //   [1] {
2357       //     UTF8String { "a" }
2358       //   }
2359       // }
2360       {0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x62, 0xa1, 0x03, 0x0c, 0x01, 0x61},
2361       // [6 PRIMITIVE] { "a" }
2362       {0x86, 0x01, 0x61},
2363       // [6 PRIMITIVE] { "b" }
2364       {0x86, 0x01, 0x62},
2365       // [7 PRIMITIVE] { `11111111` }
2366       {0x87, 0x04, 0x11, 0x11, 0x11, 0x11},
2367       // [7 PRIMITIVE] { `22222222`}
2368       {0x87, 0x04, 0x22, 0x22, 0x22, 0x22},
2369       // [7 PRIMITIVE] { `11111111111111111111111111111111` }
2370       {0x87, 0x10, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
2371        0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
2372       // [7 PRIMITIVE] { `22222222222222222222222222222222` }
2373       {0x87, 0x10, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
2374        0x22, 0x22, 0x22, 0x22, 0x22, 0x22},
2375       // [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.1 }
2376       {0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84, 0xb7,
2377        0x09, 0x02, 0x01},
2378       // [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.2 }
2379       {0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84, 0xb7,
2380        0x09, 0x02, 0x02},
2381   };
2382 
2383   // Every name should be equal to itself and not equal to any others.
2384   for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kNames); i++) {
2385     SCOPED_TRACE(Bytes(kNames[i]));
2386 
2387     const uint8_t *ptr = kNames[i].data();
2388     bssl::UniquePtr<GENERAL_NAME> a(
2389         d2i_GENERAL_NAME(nullptr, &ptr, kNames[i].size()));
2390     ASSERT_TRUE(a);
2391 
2392     for (size_t j = 0; j < OPENSSL_ARRAY_SIZE(kNames); j++) {
2393       SCOPED_TRACE(Bytes(kNames[j]));
2394 
2395       ptr = kNames[j].data();
2396       bssl::UniquePtr<GENERAL_NAME> b(
2397           d2i_GENERAL_NAME(nullptr, &ptr, kNames[j].size()));
2398       ASSERT_TRUE(b);
2399 
2400       if (i == j) {
2401         EXPECT_EQ(GENERAL_NAME_cmp(a.get(), b.get()), 0);
2402       } else {
2403         EXPECT_NE(GENERAL_NAME_cmp(a.get(), b.get()), 0);
2404       }
2405     }
2406   }
2407 }
2408