tests: added tests signature validation using the sign/verify_data APIs

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

2 files changed, 201 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index fea0732d65..4fe1247fe0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -99,7 +99,7 @@ ctests = mini-record-2 simple gc set_pkcs12_cred cert certuniqueid	\
 	 mini-dtls-heartbeat mini-x509-callbacks key-openssl priorities	\
 	 mini-dtls-srtp rsa-encrypt-decrypt mini-loss-time gnutls-strcodes \
 	 mini-record mini-dtls-record mini-handshake-timeout mini-record-range \
-	 mini-cert-status rsa-psk global-init sec-params \
+	 mini-cert-status rsa-psk global-init sec-params x509sign-verify-data \
 	 fips-test mini-global-load name-constraints x509-extensions \
 	 long-session-id mini-x509-callbacks-intr mini-dtls-lowmtu \
 	 crlverify mini-dtls-discard init_fds mini-record-failure \
diff --git a/tests/x509sign-verify-data.c b/tests/x509sign-verify-data.c
new file mode 100644
index 0000000000..b638146cc3
--- /dev/null
+++ b/tests/x509sign-verify-data.c
@@ -0,0 +1,200 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#ifndef _WIN32
+# include <netinet/in.h>
+# include <sys/socket.h>
+# include <arpa/inet.h>
+#endif
+#include <unistd.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+#include <gnutls/abstract.h>
+#include "cert-common.h"
+#include "utils.h"
+
+/* verifies whether the sign-data and verify-data APIs
+ * operate as expected */
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "<%d> %s", level, str);
+}
+
+/* sha1 hash of "hello" string */
+const gnutls_datum_t raw_data = {
+	(void *)
+	    "\xaa\xf4\xc6\x1d\xdc\xc5\xe8\xa2\xda\xbe"
+	    "\xde\x0f\x3b\x48\x2c\xd9\xae\xa9\x43\x4d",
+	20
+};
+
+const gnutls_datum_t invalid_raw_data = {
+	(void *)
+	    "\xaa\xf4\xc6\x1d\xdc\xc5\xe8\xa2\xda\xbe"
+	    "\xde\x0f\x3b\x48\x3c\xd9\xae\xa9\x43\x4d",
+	20
+};
+
+struct tests_st {
+	const char *name;
+	gnutls_datum_t key;
+	gnutls_datum_t cert;
+	gnutls_pk_algorithm_t pk;
+	unsigned digest;
+	unsigned sigalgo;
+	unsigned sign_flags;
+};
+
+struct tests_st tests[] = {
+	{
+		.name = "rsa key",
+		.cert = {(void *) cli_ca3_cert_pem, sizeof(cli_ca3_cert_pem)-1},
+		.key = {(void *) cli_ca3_key_pem, sizeof(cli_ca3_key_pem)-1},
+		.pk = GNUTLS_PK_RSA,
+		.digest = GNUTLS_DIG_SHA256,
+		.sigalgo = GNUTLS_SIGN_RSA_SHA256
+	},
+	{
+		.name = "ecdsa key",
+		.key = {(void *) server_ca3_ecc_key_pem, sizeof(server_ca3_ecc_key_pem)-1},
+		.cert = {(void *) server_localhost_ca3_ecc_cert_pem, sizeof(server_localhost_ca3_ecc_cert_pem)-1},
+		.pk = GNUTLS_PK_ECDSA,
+		.digest = GNUTLS_DIG_SHA256,
+		.sigalgo = GNUTLS_SIGN_ECDSA_SHA256
+	},
+	{
+		.name = "rsa pss key",
+		.key = {(void *) server_ca3_rsa_pss_key_pem, sizeof(server_ca3_rsa_pss_key_pem)-1},
+		.cert = {(void *) server_ca3_rsa_pss_cert_pem, sizeof(server_ca3_rsa_pss_cert_pem)-1},
+		.pk = GNUTLS_PK_RSA_PSS,
+		.digest = GNUTLS_DIG_SHA256,
+		.sign_flags = GNUTLS_PRIVKEY_SIGN_FLAG_RSA_PSS,
+		.sigalgo = GNUTLS_SIGN_RSA_PSS_SHA256
+	}
+};
+
+#define testfail(fmt, ...) \
+	fail("%s: "fmt, tests[i].name, ##__VA_ARGS__)
+
+void doit(void)
+{
+	gnutls_x509_crt_t crt;
+	gnutls_pubkey_t pubkey;
+	gnutls_privkey_t privkey;
+	gnutls_sign_algorithm_t sign_algo;
+	gnutls_datum_t signature;
+	int ret;
+	size_t i;
+
+	global_init();
+
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(6);
+
+	for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
+		if (debug)
+			success("loop %d\n", (int) i);
+
+		ret = gnutls_pubkey_init(&pubkey);
+		if (ret < 0)
+			testfail("gnutls_privkey_init\n");
+
+		ret = gnutls_privkey_init(&privkey);
+		if (ret < 0)
+			testfail("gnutls_pubkey_init\n");
+
+		ret = gnutls_privkey_import_x509_raw(privkey, &tests[i].key, GNUTLS_X509_FMT_PEM, NULL, 0);
+		if (ret < 0)
+			testfail("gnutls_privkey_import_x509\n");
+
+		ret = gnutls_privkey_sign_data(privkey, tests[i].digest, tests[i].sign_flags,
+						&raw_data, &signature);
+		if (ret < 0)
+			testfail("gnutls_x509_privkey_sign_hash\n");
+
+		ret = gnutls_x509_crt_init(&crt);
+		if (ret < 0)
+			testfail("gnutls_x509_crt_init\n");
+
+		ret =
+		    gnutls_x509_crt_import(crt, &tests[i].cert,
+					   GNUTLS_X509_FMT_PEM);
+		if (ret < 0)
+			testfail("gnutls_x509_crt_import\n");
+
+		ret = gnutls_pubkey_import_x509(pubkey, crt, 0);
+		if (ret < 0)
+			testfail("gnutls_x509_pubkey_import\n");
+
+		ret =
+		    gnutls_pubkey_verify_data2(pubkey, tests[i].sigalgo, 0, &raw_data,
+					      &signature);
+		if (ret < 0)
+			testfail("gnutls_x509_pubkey_verify_data2\n");
+
+		/* should fail */
+		ret =
+		    gnutls_pubkey_verify_data2(pubkey, tests[i].sigalgo, 0,
+					      &invalid_raw_data,
+					      &signature);
+		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)
+			testfail("gnutls_x509_pubkey_verify_data2-2 (hashed data)\n");
+
+		sign_algo =
+		    gnutls_pk_to_sign(gnutls_pubkey_get_pk_algorithm
+				      (pubkey, NULL), tests[i].digest);
+		ret =
+		    gnutls_pubkey_verify_data2(pubkey, sign_algo, 0,
+						&raw_data, &signature);
+		if (ret < 0)
+			testfail("gnutls_x509_pubkey_verify_data2-1 (hashed data)\n");
+
+		/* should fail */
+		ret =
+		    gnutls_pubkey_verify_data2(pubkey, sign_algo, 0,
+						&invalid_raw_data,
+						&signature);
+		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)
+			testfail("gnutls_x509_pubkey_verify_data2-2 (hashed data)\n");
+
+		/* test the raw interface */
+		gnutls_free(signature.data);
+		signature.data = NULL;
+
+		gnutls_free(signature.data);
+		gnutls_x509_crt_deinit(crt);
+		gnutls_privkey_deinit(privkey);
+		gnutls_pubkey_deinit(pubkey);
+	}
+
+	gnutls_global_deinit();
+}