tests: added sign/verification test using rfc8080 keys

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

2 files changed, 145 insertions, 1 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 46fa9a553f..740332f95b 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -98,7 +98,7 @@ ctests = mini-record-2 simple gc set_pkcs12_cred cert certuniqueid	\
 	 crq_apis init_roundtrip pkcs12_s2k_pem dn2 mini-eagain	tls-rehandshake-cert-3 \
 	 nul-in-x509-names x509_altname pkcs12_encode mini-x509	ocsp-resp \
 	 tls-rehandshake-cert rng-fork mini-eagain-dtls resume-dtls \
-	 x509cert x509cert-tl infoaccess mini-dtls-hello-verify \
+	 x509cert x509cert-tl infoaccess mini-dtls-hello-verify sign-verify-ed25519-rfc8080 \
 	 trustdb-tofu dtls-rehandshake-anon mini-alpn mini-dtls-large \
 	 mini-termination mini-x509-cas mini-x509-2 pkcs12_simple \
 	 mini-emsgsize-dtls chainverify-unsorted mini-overhead \
diff --git a/tests/sign-verify-ed25519-rfc8080.c b/tests/sign-verify-ed25519-rfc8080.c
new file mode 100644
index 0000000000..75585b982c
--- /dev/null
+++ b/tests/sign-verify-ed25519-rfc8080.c
@@ -0,0 +1,144 @@
+/*
+ * 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 "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);
+}
+
+/* Values from RFC8080 */
+static unsigned char ed25519_x[] =
+    "\x97\x4d\x96\xa2\x2d\x22\x4b\xc0\x1a\xdb\x91\x50\x91\x47\x7d\x44\xcc\xd9\x1c\x9a\x41\xa1\x14\x30\x01\x01\x17\xd5\x2c\x59\x24\x0e";
+static unsigned char ed25519_k[] =
+    "\x38\x32\x32\x36\x30\x33\x38\x34\x36\x32\x38\x30\x38\x30\x31\x32\x32\x36\x34\x35\x31\x39\x30\x32\x30\x34\x31\x34\x32\x32\x36\x32";
+
+static gnutls_datum_t _ed25519_x = { ed25519_x, sizeof(ed25519_x) - 1 };
+static gnutls_datum_t _ed25519_k = { ed25519_k, sizeof(ed25519_k) - 1 };
+
+/* 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
+};
+
+void doit(void)
+{
+	gnutls_pubkey_t pubkey;
+	gnutls_privkey_t key;
+	gnutls_datum_t signature;
+	int ret;
+
+	global_init();
+
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(6);
+
+	ret = gnutls_privkey_init(&key);
+	if (ret < 0)
+		fail("error\n");
+
+	ret =
+	    gnutls_privkey_import_ecc_raw(key, GNUTLS_ECC_CURVE_ED25519,
+					  &_ed25519_x, NULL, &_ed25519_k);
+	if (ret < 0)
+		fail("error\n");
+
+	ret = gnutls_privkey_verify_params(key);
+	if (ret != 0)
+		fail("error: %s\n", gnutls_strerror(ret));
+
+	ret = gnutls_privkey_sign_data(key, GNUTLS_DIG_SHA512, 0,
+				       &raw_data, &signature);
+	if (ret < 0)
+		fail("gnutls_x509_privkey_sign_hash\n");
+
+	/* verification */
+	ret = gnutls_pubkey_init(&pubkey);
+	if (ret < 0)
+		fail("gnutls_privkey_init\n");
+
+	ret = gnutls_pubkey_import_privkey(pubkey, key, 0, 0);
+	if (ret < 0)
+		fail("gnutls_x509_pubkey_import\n");
+
+	ret =
+	    gnutls_pubkey_verify_data2(pubkey, GNUTLS_SIGN_EDDSA_ED25519, 0,
+				       &raw_data, &signature);
+	if (ret < 0)
+		fail("gnutls_x509_pubkey_verify_data2\n");
+
+	gnutls_pubkey_deinit(pubkey);
+
+	/* try importing the pubkey directly */
+	ret = gnutls_pubkey_init(&pubkey);
+	if (ret < 0)
+		fail("gnutls_privkey_init\n");
+
+	ret = gnutls_pubkey_import_ecc_raw(pubkey, GNUTLS_ECC_CURVE_ED25519, &_ed25519_x, NULL);
+	if (ret < 0)
+		fail("gnutls_x509_pubkey_import_ecc_raw\n");
+
+	ret =
+	    gnutls_pubkey_verify_data2(pubkey, GNUTLS_SIGN_EDDSA_ED25519, 0,
+				       &raw_data, &signature);
+	if (ret < 0)
+		fail("gnutls_x509_pubkey_verify_data2\n");
+
+	gnutls_pubkey_deinit(pubkey);
+
+	gnutls_privkey_deinit(key);
+	gnutls_free(signature.data);
+
+	gnutls_global_deinit();
+}