tests: added unit test of gnutls_pubkey_verify_data2 override flags

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

2 files changed, 142 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index e33acc2607..144c95dc0e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -90,7 +90,7 @@ ctests = mini-record-2 simple gc set_pkcs12_cred cert certuniqueid	\
 	 long-session-id mini-x509-callbacks-intr mini-dtls-lowmtu \
 	 crlverify mini-dtls-discard init_fds mini-record-failure \
 	 tls-rehandshake-cert-2 custom-urls set_x509_key_mem set_x509_key_file \
-	 mini-chain-unsorted x509-verify-with-crl mini-dtls-mtu \
+	 mini-chain-unsorted x509-verify-with-crl mini-dtls-mtu privkey-verify-broken \
 	 mini-dtls-record-asym openpgp-callback key-import-export \
 	 mini-dtls-fork mini-dtls-pthread mini-key-material x509cert-invalid \
 	 strict-der tls-ext-register tls-supplemental mini-dtls0-9 \
diff --git a/tests/privkey-verify-broken.c b/tests/privkey-verify-broken.c
new file mode 100644
index 0000000000..098a511bf4
--- /dev/null
+++ b/tests/privkey-verify-broken.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2017 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+#include <gnutls/abstract.h>
+#include <assert.h>
+
+#include "utils.h"
+#include "cert-common.h"
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "|<%d>| %s", level, str);
+}
+
+const gnutls_datum_t raw_data = {
+	(void *) "hello there",
+	11
+};
+
+static int sign_verify_data(gnutls_x509_privkey_t pkey, unsigned algo, unsigned vflags)
+{
+	int ret;
+	gnutls_privkey_t privkey;
+	gnutls_pubkey_t pubkey;
+	gnutls_datum_t signature;
+
+	/* sign arbitrary data */
+	assert(gnutls_privkey_init(&privkey) >= 0);
+
+	ret = gnutls_privkey_import_x509(privkey, pkey, 0);
+	if (ret < 0)
+		fail("gnutls_pubkey_import_x509\n");
+
+	ret = gnutls_privkey_sign_data(privkey, algo, 0,
+					&raw_data, &signature);
+	if (ret < 0) {
+		ret = -1;
+		goto cleanup;
+	}
+
+	/* verify data */
+	assert(gnutls_pubkey_init(&pubkey) >= 0);
+
+	ret = gnutls_pubkey_import_privkey(pubkey, privkey, 0, 0);
+	if (ret < 0)
+		fail("gnutls_pubkey_import_privkey\n");
+
+	ret = gnutls_pubkey_verify_data2(pubkey, gnutls_pk_to_sign(gnutls_pubkey_get_pk_algorithm(pubkey, NULL),algo),
+				vflags, &raw_data, &signature);
+	if (ret < 0) {
+		ret = -1;
+		goto cleanup;
+	}
+
+	ret = 0;
+ cleanup:
+	gnutls_pubkey_deinit(pubkey);
+	gnutls_privkey_deinit(privkey);
+	gnutls_free(signature.data);
+
+	return ret;
+}
+
+void doit(void)
+{
+	gnutls_x509_privkey_t pkey;
+	int ret;
+
+	ret = global_init();
+	if (ret < 0)
+		fail("global_init: %d\n", ret);
+
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(4711);
+
+	ret = gnutls_x509_privkey_init(&pkey);
+	if (ret < 0) {
+		fail("gnutls_x509_privkey_init: %d\n", ret);
+	}
+
+	ret = gnutls_x509_privkey_import(pkey, &key_dat, GNUTLS_X509_FMT_PEM);
+	if (ret < 0) {
+		fail("gnutls_privkey_generate: %s\n", gnutls_strerror(ret));
+	}
+
+	if (sign_verify_data(pkey, GNUTLS_DIG_SHA1, GNUTLS_VERIFY_ALLOW_BROKEN) < 0)
+		fail("failed verification with SHA1 and override flags2!\n");
+
+	if (sign_verify_data(pkey, GNUTLS_DIG_MD5, 0) >= 0)
+		fail("succeeded verification with SHA1!\n");
+
+	if (!gnutls_fips140_mode_enabled()) {
+		if (sign_verify_data(pkey, GNUTLS_DIG_MD5, GNUTLS_VERIFY_ALLOW_SIGN_RSA_MD5) < 0)
+			fail("failed verification with MD5 and override flags!\n");
+
+		if (sign_verify_data(pkey, GNUTLS_DIG_MD5, GNUTLS_VERIFY_ALLOW_BROKEN) < 0)
+			fail("failed verification with MD5 and override flags2!\n");
+	}
+
+	if (sign_verify_data(pkey, GNUTLS_DIG_SHA256, 0) < 0)
+		fail("failed verification with SHA256!\n");
+
+	if (sign_verify_data(pkey, GNUTLS_DIG_SHA512, 0) < 0)
+		fail("failed verification with SHA512!\n");
+
+	if (sign_verify_data(pkey, GNUTLS_DIG_SHA3_256, 0) < 0)
+		fail("failed verification with SHA3-256!\n");
+
+	gnutls_x509_privkey_deinit(pkey);
+
+	gnutls_global_deinit();
+}