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/*
* 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();
}
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