]> git.ipfire.org Git - thirdparty/gnutls.git/commitdiff
Fix removal of duplicate certs during verification
authorZoltan Fridrich <zfridric@redhat.com>
Mon, 17 Oct 2022 13:27:37 +0000 (15:27 +0200)
committerZoltan Fridrich <zfridric@redhat.com>
Mon, 31 Oct 2022 09:29:55 +0000 (10:29 +0100)
Co-authored-by: Daiki Ueno <ueno@gnu.org>
Signed-off-by: Zoltan Fridrich <zfridric@redhat.com>
.gitignore
lib/x509/verify-high.c
tests/Makefile.am
tests/x509-verify-duplicate.c [new file with mode: 0644]

index 1e876c2dc8c452c0eeb75713d86aaa9f382cc3a8..3d504ff674941e5dd0342aeb5d848fdd347bd0d7 100644 (file)
@@ -913,6 +913,7 @@ tests/x509-dn-decode-compat
 tests/x509-extensions
 tests/x509-server-verify
 tests/x509-upnconstraint
+tests/x509-verify-duplicate
 tests/x509-verify-with-crl
 tests/x509_altname
 tests/x509cert
index 3b9a1011d04d58de02f84e27818959d736c2b5bb..0c46881398007d8fb40318c3a29f7dc941a8aa07 100644 (file)
@@ -35,6 +35,8 @@
 #include <gnutls/x509-ext.h>
 #include "verify-high.h"
 #include "intprops.h"
+#include "gl_linkedhash_list.h"
+#include "gl_list.h"
 
 struct named_cert_st {
        gnutls_x509_crt_t cert;
@@ -68,82 +70,19 @@ struct gnutls_x509_trust_list_iter {
 
 #define DEFAULT_SIZE 127
 
-struct cert_set_node_st {
-       gnutls_x509_crt_t *certs;
-       unsigned int size;
-};
-
-struct cert_set_st {
-       struct cert_set_node_st *node;
-       unsigned int size;
-};
-
-static int
-cert_set_init(struct cert_set_st *set, unsigned int size)
-{
-       memset(set, 0, sizeof(*set));
-
-       set->size = size;
-       set->node = gnutls_calloc(size, sizeof(*set->node));
-       if (!set->node) {
-               return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
-       }
-
-       return 0;
-}
-
-static void
-cert_set_deinit(struct cert_set_st *set)
-{
-       size_t i;
-
-       for (i = 0; i < set->size; i++) {
-               gnutls_free(set->node[i].certs);
-       }
-
-       gnutls_free(set->node);
-}
-
 static bool
-cert_set_contains(struct cert_set_st *set, const gnutls_x509_crt_t cert)
+cert_eq(const void *cert1, const void *cert2)
 {
-       size_t hash, i;
-
-       hash = hash_pjw_bare(cert->raw_dn.data, cert->raw_dn.size);
-       hash %= set->size;
-
-       for (i = 0; i < set->node[hash].size; i++) {
-               if (unlikely(gnutls_x509_crt_equals(set->node[hash].certs[i], cert))) {
-                       return true;
-               }
-       }
-
-       return false;
+       const gnutls_x509_crt_t c1 = (const gnutls_x509_crt_t)cert1;
+       const gnutls_x509_crt_t c2 = (const gnutls_x509_crt_t)cert2;
+       return gnutls_x509_crt_equals(c1, c2);
 }
 
-static int
-cert_set_add(struct cert_set_st *set, const gnutls_x509_crt_t cert)
+static size_t
+cert_hashcode(const void *cert)
 {
-       size_t hash;
-
-       hash = hash_pjw_bare(cert->raw_dn.data, cert->raw_dn.size);
-       hash %= set->size;
-
-       if (unlikely(INT_ADD_OVERFLOW(set->node[hash].size, 1))) {
-               return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
-       }
-
-       set->node[hash].certs =
-               _gnutls_reallocarray_fast(set->node[hash].certs,
-                                         set->node[hash].size + 1,
-                                         sizeof(*set->node[hash].certs));
-       if (!set->node[hash].certs) {
-               return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
-       }
-       set->node[hash].certs[set->node[hash].size] = cert;
-       set->node[hash].size++;
-
-       return 0;
+       const gnutls_x509_crt_t c = (const gnutls_x509_crt_t)cert;
+       return hash_pjw_bare(c->raw_dn.data, c->raw_dn.size) % DEFAULT_MAX_VERIFY_DEPTH;
 }
 
 /**
@@ -1426,7 +1365,7 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
        unsigned have_set_name = 0;
        unsigned saved_output;
        gnutls_datum_t ip = {NULL, 0};
-       struct cert_set_st cert_set = { NULL, 0 };
+       gl_list_t records;
 
        if (cert_list == NULL || cert_list_size < 1)
                return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
@@ -1475,10 +1414,9 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
        memcpy(sorted, cert_list, cert_list_size * sizeof(gnutls_x509_crt_t));
        cert_list = sorted;
 
-       ret = cert_set_init(&cert_set, DEFAULT_MAX_VERIFY_DEPTH);
-       if (ret < 0) {
-               return ret;
-       }
+       records = gl_list_nx_create_empty(GL_LINKEDHASH_LIST, cert_eq, cert_hashcode, NULL, false);
+       if (records == NULL)
+               return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
 
        for (i = 0; i < cert_list_size &&
                     cert_list_size <= DEFAULT_MAX_VERIFY_DEPTH; ) {
@@ -1493,8 +1431,8 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
 
                /* Remove duplicates. Start with index 1, as the first element
                 * may be re-checked after issuer retrieval. */
-               for (j = 1; j < sorted_size; j++) {
-                       if (cert_set_contains(&cert_set, cert_list[i + j])) {
+               for (j = 0; j < sorted_size; j++) {
+                       if (gl_list_search(records, cert_list[i + j])) {
                                if (i + j < cert_list_size - 1) {
                                        memmove(&cert_list[i + j],
                                                &cert_list[i + j + 1],
@@ -1511,8 +1449,8 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
 
                /* Record the certificates seen. */
                for (j = 0; j < sorted_size; j++, i++) {
-                       ret = cert_set_add(&cert_set, cert_list[i]);
-                       if (ret < 0) {
+                       if (!gl_list_nx_add_last(records, cert_list[i])) {
+                               ret = gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
                                goto cleanup;
                        }
                }
@@ -1559,6 +1497,7 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
 
                        /* Start again from the end of the previous segment. */
                        i--;
+                       gl_list_remove(records, cert_list[i]);
                }
        }
 
@@ -1718,7 +1657,7 @@ gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t list,
        for (i = 0; i < retrieved_size; i++) {
                gnutls_x509_crt_deinit(retrieved[i]);
        }
-       cert_set_deinit(&cert_set);
+       gl_list_free(records);
        return ret;
 }
 
index 9d89a8282a1aec5061722bc16a42b00652e0a8bc..b6c3536a92e13f460b436d489c810e17f3e2bab5 100644 (file)
@@ -179,7 +179,7 @@ ctests += mini-record-2 simple gnutls_hmac_fast set_pkcs12_cred cert certuniquei
         crlverify mini-dtls-discard mini-record-failure openconnect-dtls12 \
         tls12-rehandshake-cert-2 custom-urls set_x509_key_mem set_x509_key_file \
         tls12-rehandshake-cert-auto tls12-rehandshake-set-prio \
-        mini-chain-unsorted x509-verify-with-crl mini-dtls-mtu privkey-verify-broken \
+        mini-chain-unsorted x509-verify-duplicate x509-verify-with-crl mini-dtls-mtu privkey-verify-broken \
         mini-dtls-record-asym key-import-export priority-set priority-set2 \
         pubkey-import-export sign-is-secure spki spki-abstract rsa-rsa-pss \
         mini-dtls-fork dtls-pthread mini-key-material x509cert-invalid \
diff --git a/tests/x509-verify-duplicate.c b/tests/x509-verify-duplicate.c
new file mode 100644 (file)
index 0000000..f47a8b2
--- /dev/null
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2022 Red Hat, Inc.
+ *
+ * Author: Zoltan Fridrich
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GnuTLS. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gnutls/x509.h>
+
+#include "utils.h"
+
+#define CHECK(X)\
+{\
+       r = X;\
+       if (r < 0)\
+               fail("error in %d: %s\n", __LINE__, gnutls_strerror(r));\
+}\
+
+static char cert_pem[] =
+       "-----BEGIN CERTIFICATE-----\n"
+       "MIIFLzCCBBegAwIBAgISAycvItcPAZ5yClzMOYYcod4cMA0GCSqGSIb3DQEBCwUA\n"
+       "MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD\n"
+       "EwJSMzAeFw0yMjA4MjMwNjMzMjlaFw0yMjExMjEwNjMzMjhaMBcxFTATBgNVBAMT\n"
+       "DHZvaWRwb2ludC5pbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANSt\n"
+       "AazUWttuU/swyEdt70bpod6knYDJavnFUwicpT4ZfPh84Y2ci9Ay9oTVR8LzVq+o\n"
+       "3FIGxXlBFhCtoGA5k5Soao/JB40+gsY+O8LgcNAdejU78m5W4e2qXq4eu/4tFUCw\n"
+       "GkcRmqitnc5Jy0bEM+wCZKa42Lx0+WAhNRd/70yWIbzXOrXDnLgGc221JeYJ4it0\n"
+       "ajYcf3AZuSHhL3qsTLLzuYorPqWmDy27psUiDDJOIjxVbBCRL+AY40TsQm7CZZhZ\n"
+       "8sCkZU7rIvuDv7nf3QpUsF9Zqk9B3F4tTg0vsVuYeL1XCHGwpVeUS83MsZiLP8Zj\n"
+       "XGQTM6GiWuOAZ9JJjrsCAwEAAaOCAlgwggJUMA4GA1UdDwEB/wQEAwIFoDAdBgNV\n"
+       "HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E\n"
+       "FgQUlw1h3ZwSMKRwkrQ+F4XT3QV/tn8wHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA\n"
+       "5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu\n"
+       "by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w\n"
+       "JwYDVR0RBCAwHoIOKi52b2lkcG9pbnQuaW+CDHZvaWRwb2ludC5pbzBMBgNVHSAE\n"
+       "RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw\n"
+       "Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2\n"
+       "AN+lXqtogk8fbK3uuF9OPlrqzaISpGpejjsSwCBEXCpzAAABgsme4hAAAAQDAEcw\n"
+       "RQIhAP6sPHv1PJez/VRMw5xmAAkNU/q9ydq1mTgp7j5uBB9AAiAxm+teG9utZCLP\n"
+       "TTTv89FHwFV9omfZzDNAiNgg8METHwB3ACl5vvCeOTkh8FZzn2Old+W+V32cYAr4\n"
+       "+U1dJlwlXceEAAABgsme4gUAAAQDAEgwRgIhAPKWJ7WeuBUSnDqabTAVLKU+PpzA\n"
+       "bJJ9sehaCKW9AicZAiEAqphpC0lF4/iz2Gkxgd/DEkl9SyyAmR/lEJ7cWDMFhz8w\n"
+       "DQYJKoZIhvcNAQELBQADggEBAC0aCscObAdTerzGUrDsuQR5FuCTAmvdk3Isqjw1\n"
+       "dG3WuiwW1Z4ecpqCdvDSIv3toQDWVk6g/oa3fHDnY0/tu//vCwdneDdjK3gCM6cj\n"
+       "/q0cwj+rGFx/bEVz8PR5kc3DOHGKkmHPN1BNxeLBVpk4jxziXryAVbIvxq9JrGTE\n"
+       "SfWbWcMkHHw/QzpUfyD3B/GI8qw6XhdaNNkLDEDNV0sCPCuZYc5FBZzU4ExB2vMG\n"
+       "QVnPfxzKWmxHs10uxXyRZJlOrrbTGU8gi0vnOQZK290dtLzEyU2sdkic1ZSn+fCo\n"
+       "k++37mNDkiTnIQa3olRqHkypWqGfj8OyqU4XBV2Mmu4UATc=\n"
+       "-----END CERTIFICATE-----\n"
+       "-----BEGIN CERTIFICATE-----\n"
+       "MIIFLzCCBBegAwIBAgISAycvItcPAZ5yClzMOYYcod4cMA0GCSqGSIb3DQEBCwUA\n"
+       "MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD\n"
+       "EwJSMzAeFw0yMjA4MjMwNjMzMjlaFw0yMjExMjEwNjMzMjhaMBcxFTATBgNVBAMT\n"
+       "DHZvaWRwb2ludC5pbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANSt\n"
+       "AazUWttuU/swyEdt70bpod6knYDJavnFUwicpT4ZfPh84Y2ci9Ay9oTVR8LzVq+o\n"
+       "3FIGxXlBFhCtoGA5k5Soao/JB40+gsY+O8LgcNAdejU78m5W4e2qXq4eu/4tFUCw\n"
+       "GkcRmqitnc5Jy0bEM+wCZKa42Lx0+WAhNRd/70yWIbzXOrXDnLgGc221JeYJ4it0\n"
+       "ajYcf3AZuSHhL3qsTLLzuYorPqWmDy27psUiDDJOIjxVbBCRL+AY40TsQm7CZZhZ\n"
+       "8sCkZU7rIvuDv7nf3QpUsF9Zqk9B3F4tTg0vsVuYeL1XCHGwpVeUS83MsZiLP8Zj\n"
+       "XGQTM6GiWuOAZ9JJjrsCAwEAAaOCAlgwggJUMA4GA1UdDwEB/wQEAwIFoDAdBgNV\n"
+       "HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E\n"
+       "FgQUlw1h3ZwSMKRwkrQ+F4XT3QV/tn8wHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA\n"
+       "5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu\n"
+       "by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w\n"
+       "JwYDVR0RBCAwHoIOKi52b2lkcG9pbnQuaW+CDHZvaWRwb2ludC5pbzBMBgNVHSAE\n"
+       "RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw\n"
+       "Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2\n"
+       "AN+lXqtogk8fbK3uuF9OPlrqzaISpGpejjsSwCBEXCpzAAABgsme4hAAAAQDAEcw\n"
+       "RQIhAP6sPHv1PJez/VRMw5xmAAkNU/q9ydq1mTgp7j5uBB9AAiAxm+teG9utZCLP\n"
+       "TTTv89FHwFV9omfZzDNAiNgg8METHwB3ACl5vvCeOTkh8FZzn2Old+W+V32cYAr4\n"
+       "+U1dJlwlXceEAAABgsme4gUAAAQDAEgwRgIhAPKWJ7WeuBUSnDqabTAVLKU+PpzA\n"
+       "bJJ9sehaCKW9AicZAiEAqphpC0lF4/iz2Gkxgd/DEkl9SyyAmR/lEJ7cWDMFhz8w\n"
+       "DQYJKoZIhvcNAQELBQADggEBAC0aCscObAdTerzGUrDsuQR5FuCTAmvdk3Isqjw1\n"
+       "dG3WuiwW1Z4ecpqCdvDSIv3toQDWVk6g/oa3fHDnY0/tu//vCwdneDdjK3gCM6cj\n"
+       "/q0cwj+rGFx/bEVz8PR5kc3DOHGKkmHPN1BNxeLBVpk4jxziXryAVbIvxq9JrGTE\n"
+       "SfWbWcMkHHw/QzpUfyD3B/GI8qw6XhdaNNkLDEDNV0sCPCuZYc5FBZzU4ExB2vMG\n"
+       "QVnPfxzKWmxHs10uxXyRZJlOrrbTGU8gi0vnOQZK290dtLzEyU2sdkic1ZSn+fCo\n"
+       "k++37mNDkiTnIQa3olRqHkypWqGfj8OyqU4XBV2Mmu4UATc=\n"
+       "-----END CERTIFICATE-----\n"
+       "-----BEGIN CERTIFICATE-----\n"
+       "MIIFFjCCAv6gAwIBAgIRAJErCErPDBinU/bWLiWnX1owDQYJKoZIhvcNAQELBQAw\n"
+       "TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh\n"
+       "cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjAwOTA0MDAwMDAw\n"
+       "WhcNMjUwOTE1MTYwMDAwWjAyMQswCQYDVQQGEwJVUzEWMBQGA1UEChMNTGV0J3Mg\n"
+       "RW5jcnlwdDELMAkGA1UEAxMCUjMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK\n"
+       "AoIBAQC7AhUozPaglNMPEuyNVZLD+ILxmaZ6QoinXSaqtSu5xUyxr45r+XXIo9cP\n"
+       "R5QUVTVXjJ6oojkZ9YI8QqlObvU7wy7bjcCwXPNZOOftz2nwWgsbvsCUJCWH+jdx\n"
+       "sxPnHKzhm+/b5DtFUkWWqcFTzjTIUu61ru2P3mBw4qVUq7ZtDpelQDRrK9O8Zutm\n"
+       "NHz6a4uPVymZ+DAXXbpyb/uBxa3Shlg9F8fnCbvxK/eG3MHacV3URuPMrSXBiLxg\n"
+       "Z3Vms/EY96Jc5lP/Ooi2R6X/ExjqmAl3P51T+c8B5fWmcBcUr2Ok/5mzk53cU6cG\n"
+       "/kiFHaFpriV1uxPMUgP17VGhi9sVAgMBAAGjggEIMIIBBDAOBgNVHQ8BAf8EBAMC\n"
+       "AYYwHQYDVR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMBMBIGA1UdEwEB/wQIMAYB\n"
+       "Af8CAQAwHQYDVR0OBBYEFBQusxe3WFbLrlAJQOYfr52LFMLGMB8GA1UdIwQYMBaA\n"
+       "FHm0WeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcw\n"
+       "AoYWaHR0cDovL3gxLmkubGVuY3Iub3JnLzAnBgNVHR8EIDAeMBygGqAYhhZodHRw\n"
+       "Oi8veDEuYy5sZW5jci5vcmcvMCIGA1UdIAQbMBkwCAYGZ4EMAQIBMA0GCysGAQQB\n"
+       "gt8TAQEBMA0GCSqGSIb3DQEBCwUAA4ICAQCFyk5HPqP3hUSFvNVneLKYY611TR6W\n"
+       "PTNlclQtgaDqw+34IL9fzLdwALduO/ZelN7kIJ+m74uyA+eitRY8kc607TkC53wl\n"
+       "ikfmZW4/RvTZ8M6UK+5UzhK8jCdLuMGYL6KvzXGRSgi3yLgjewQtCPkIVz6D2QQz\n"
+       "CkcheAmCJ8MqyJu5zlzyZMjAvnnAT45tRAxekrsu94sQ4egdRCnbWSDtY7kh+BIm\n"
+       "lJNXoB1lBMEKIq4QDUOXoRgffuDghje1WrG9ML+Hbisq/yFOGwXD9RiX8F6sw6W4\n"
+       "avAuvDszue5L3sz85K+EC4Y/wFVDNvZo4TYXao6Z0f+lQKc0t8DQYzk1OXVu8rp2\n"
+       "yJMC6alLbBfODALZvYH7n7do1AZls4I9d1P4jnkDrQoxB3UqQ9hVl3LEKQ73xF1O\n"
+       "yK5GhDDX8oVfGKF5u+decIsH4YaTw7mP3GFxJSqv3+0lUFJoi5Lc5da149p90Ids\n"
+       "hCExroL1+7mryIkXPeFM5TgO9r0rvZaBFOvV2z0gp35Z0+L4WPlbuEjN/lxPFin+\n"
+       "HlUjr8gRsI3qfJOQFy/9rKIJR0Y/8Omwt/8oTWgy1mdeHmmjk7j1nYsvC9JSQ6Zv\n"
+       "MldlTTKB3zhThV1+XWYp6rjd5JW1zbVWEkLNxE7GJThEUG3szgBVGP7pSWTUTsqX\n"
+       "nLRbwHOoq7hHwg==\n"
+       "-----END CERTIFICATE-----\n"
+       "-----BEGIN CERTIFICATE-----\n"
+       "MIIFYDCCBEigAwIBAgIQQAF3ITfU6UK47naqPGQKtzANBgkqhkiG9w0BAQsFADA/\n"
+       "MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n"
+       "DkRTVCBSb290IENBIFgzMB4XDTIxMDEyMDE5MTQwM1oXDTI0MDkzMDE4MTQwM1ow\n"
+       "TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh\n"
+       "cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwggIiMA0GCSqGSIb3DQEB\n"
+       "AQUAA4ICDwAwggIKAoICAQCt6CRz9BQ385ueK1coHIe+3LffOJCMbjzmV6B493XC\n"
+       "ov71am72AE8o295ohmxEk7axY/0UEmu/H9LqMZshftEzPLpI9d1537O4/xLxIZpL\n"
+       "wYqGcWlKZmZsj348cL+tKSIG8+TA5oCu4kuPt5l+lAOf00eXfJlII1PoOK5PCm+D\n"
+       "LtFJV4yAdLbaL9A4jXsDcCEbdfIwPPqPrt3aY6vrFk/CjhFLfs8L6P+1dy70sntK\n"
+       "4EwSJQxwjQMpoOFTJOwT2e4ZvxCzSow/iaNhUd6shweU9GNx7C7ib1uYgeGJXDR5\n"
+       "bHbvO5BieebbpJovJsXQEOEO3tkQjhb7t/eo98flAgeYjzYIlefiN5YNNnWe+w5y\n"
+       "sR2bvAP5SQXYgd0FtCrWQemsAXaVCg/Y39W9Eh81LygXbNKYwagJZHduRze6zqxZ\n"
+       "Xmidf3LWicUGQSk+WT7dJvUkyRGnWqNMQB9GoZm1pzpRboY7nn1ypxIFeFntPlF4\n"
+       "FQsDj43QLwWyPntKHEtzBRL8xurgUBN8Q5N0s8p0544fAQjQMNRbcTa0B7rBMDBc\n"
+       "SLeCO5imfWCKoqMpgsy6vYMEG6KDA0Gh1gXxG8K28Kh8hjtGqEgqiNx2mna/H2ql\n"
+       "PRmP6zjzZN7IKw0KKP/32+IVQtQi0Cdd4Xn+GOdwiK1O5tmLOsbdJ1Fu/7xk9TND\n"
+       "TwIDAQABo4IBRjCCAUIwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYw\n"
+       "SwYIKwYBBQUHAQEEPzA9MDsGCCsGAQUFBzAChi9odHRwOi8vYXBwcy5pZGVudHJ1\n"
+       "c3QuY29tL3Jvb3RzL2RzdHJvb3RjYXgzLnA3YzAfBgNVHSMEGDAWgBTEp7Gkeyxx\n"
+       "+tvhS5B1/8QVYIWJEDBUBgNVHSAETTBLMAgGBmeBDAECATA/BgsrBgEEAYLfEwEB\n"
+       "ATAwMC4GCCsGAQUFBwIBFiJodHRwOi8vY3BzLnJvb3QteDEubGV0c2VuY3J5cHQu\n"
+       "b3JnMDwGA1UdHwQ1MDMwMaAvoC2GK2h0dHA6Ly9jcmwuaWRlbnRydXN0LmNvbS9E\n"
+       "U1RST09UQ0FYM0NSTC5jcmwwHQYDVR0OBBYEFHm0WeZ7tuXkAXOACIjIGlj26Ztu\n"
+       "MA0GCSqGSIb3DQEBCwUAA4IBAQAKcwBslm7/DlLQrt2M51oGrS+o44+/yQoDFVDC\n"
+       "5WxCu2+b9LRPwkSICHXM6webFGJueN7sJ7o5XPWioW5WlHAQU7G75K/QosMrAdSW\n"
+       "9MUgNTP52GE24HGNtLi1qoJFlcDyqSMo59ahy2cI2qBDLKobkx/J3vWraV0T9VuG\n"
+       "WCLKTVXkcGdtwlfFRjlBz4pYg1htmf5X6DYO8A4jqv2Il9DjXA6USbW1FzXSLr9O\n"
+       "he8Y4IWS6wY7bCkjCWDcRQJMEhg76fsO3txE+FiYruq9RUWhiF1myv4Q6W+CyBFC\n"
+       "Dfvp7OOGAN6dEOM4+qR9sdjoSYKEBpsr6GtPAQw4dy753ec5\n"
+       "-----END CERTIFICATE-----\n";
+
+void doit(void)
+{
+       int r;
+       unsigned i, certs_size, out;
+       unsigned flags = GNUTLS_VERIFY_DO_NOT_ALLOW_SAME | GNUTLS_VERIFY_DISABLE_TIME_CHECKS;
+       gnutls_x509_trust_list_t tl;
+       gnutls_x509_crt_t *certs = NULL;
+       gnutls_datum_t cert = { (unsigned char *)cert_pem, sizeof(cert_pem) - 1 };
+
+       CHECK(gnutls_x509_crt_list_import2(&certs, &certs_size, &cert, GNUTLS_X509_FMT_PEM, 0));
+       CHECK(gnutls_x509_trust_list_init(&tl, 0));
+       CHECK(gnutls_x509_trust_list_add_cas(tl, certs + certs_size - 1, 1, 0));
+       CHECK(gnutls_x509_trust_list_verify_crt(tl, certs, certs_size, flags, &out, NULL));
+
+       if (out)
+               fail("Not verified\n");
+
+       gnutls_x509_trust_list_deinit(tl, 0);
+       for (i = 0; i < certs_size; ++i)
+               gnutls_x509_crt_deinit(certs[i]);
+       gnutls_free(certs);
+}