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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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
/* This tests key import for gnutls_x509_privkey_t APIs */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <gnutls/gnutls.h>
#include <gnutls/abstract.h>
#include <gnutls/x509.h>
#include <assert.h>
#include "cert-common.h"
#include "utils.h"
#define testfail(fmt, ...) \
fail("%s: "fmt, name, ##__VA_ARGS__)
const gnutls_datum_t raw_data = {
(void *) "hello there",
11
};
static int sign_verify_data(gnutls_x509_privkey_t pkey, gnutls_sign_algorithm_t algo)
{
int ret;
gnutls_privkey_t privkey;
gnutls_pubkey_t pubkey = NULL;
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_privkey_import_x509\n");
ret = gnutls_privkey_sign_data2(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, algo,
GNUTLS_VERIFY_ALLOW_BROKEN, &raw_data, &signature);
if (ret < 0) {
ret = -1;
goto cleanup;
}
ret = 0;
cleanup:
if (pubkey)
gnutls_pubkey_deinit(pubkey);
gnutls_privkey_deinit(privkey);
gnutls_free(signature.data);
return ret;
}
static void load_privkey(const char *name, const gnutls_datum_t *txtkey, gnutls_pk_algorithm_t pk,
gnutls_sign_algorithm_t sig, int exp_key_err)
{
gnutls_x509_privkey_t tmp;
int ret;
ret = gnutls_x509_privkey_init(&tmp);
if (ret < 0)
testfail("gnutls_privkey_init\n");
ret = gnutls_x509_privkey_import(tmp, txtkey, GNUTLS_X509_FMT_PEM);
if (ret < 0) {
if (exp_key_err) {
testfail("did not fail in key import, although expected\n");
}
testfail("gnutls_privkey_import: %s\n", gnutls_strerror(ret));
}
if (gnutls_x509_privkey_get_pk_algorithm(tmp) != (int)pk) {
testfail("pk algorithm doesn't match!\n");
}
ret = gnutls_x509_privkey_verify_params(tmp);
if (ret < 0)
testfail("gnutls_privkey_verify_params: %s\n", gnutls_strerror(ret));
sign_verify_data(tmp, sig);
gnutls_x509_privkey_deinit(tmp);
return;
}
static void load_privkey_in_der(const char *name, const gnutls_datum_t *txtkey, gnutls_pk_algorithm_t pk,
gnutls_sign_algorithm_t sig, int exp_key_err)
{
gnutls_x509_privkey_t tmp;
gnutls_datum_t der;
int ret;
ret = gnutls_x509_privkey_init(&tmp);
if (ret < 0)
testfail("gnutls_privkey_init\n");
ret = gnutls_pem_base64_decode2(NULL, txtkey, &der);
if (ret < 0 || der.size == 0) {
testfail("could not convert key to DER form: %s\n", gnutls_strerror(ret));
}
ret = gnutls_x509_privkey_import(tmp, &der, GNUTLS_X509_FMT_DER);
gnutls_free(der.data);
if (ret < 0) {
if (exp_key_err) {
testfail("did not fail in key import, although expected\n");
}
testfail("gnutls_privkey_import: %s\n", gnutls_strerror(ret));
}
if (gnutls_x509_privkey_get_pk_algorithm(tmp) != (int)pk) {
testfail("pk algorithm doesn't match!\n");
}
ret = gnutls_x509_privkey_verify_params(tmp);
if (ret < 0)
testfail("gnutls_privkey_verify_params: %s\n", gnutls_strerror(ret));
sign_verify_data(tmp, sig);
gnutls_x509_privkey_deinit(tmp);
return;
}
typedef struct test_st {
const char *name;
gnutls_pk_algorithm_t pk;
gnutls_sign_algorithm_t sig;
const gnutls_datum_t *key;
int exp_key_err;
} test_st;
static const test_st tests[] = {
{.name = "ecc key",
.pk = GNUTLS_PK_ECDSA,
.sig = GNUTLS_SIGN_ECDSA_SHA256,
.key = &server_ca3_ecc_key,
},
{.name = "rsa-sign key",
.pk = GNUTLS_PK_RSA,
.sig = GNUTLS_SIGN_RSA_SHA384,
.key = &server_ca3_key,
},
{.name = "rsa-pss-sign key (PKCS#8)",
.pk = GNUTLS_PK_RSA_PSS,
.sig = GNUTLS_SIGN_RSA_PSS_SHA256,
.key = &server_ca3_rsa_pss2_key,
},
{.name = "dsa key",
.pk = GNUTLS_PK_DSA,
.sig = GNUTLS_SIGN_DSA_SHA1,
.key = &dsa_key,
},
{.name = "ed25519 key (PKCS#8)",
.pk = GNUTLS_PK_EDDSA_ED25519,
.sig = GNUTLS_SIGN_EDDSA_ED25519,
.key = &server_ca3_eddsa_key,
}
};
void doit(void)
{
unsigned int i;
for (i=0;i<sizeof(tests)/sizeof(tests[0]);i++) {
success("checking: %s\n", tests[i].name);
load_privkey(tests[i].name, tests[i].key, tests[i].pk,
tests[i].sig, tests[i].exp_key_err);
success("checking: %s in der form\n", tests[i].name);
load_privkey_in_der(tests[i].name, tests[i].key, tests[i].pk,
tests[i].sig, tests[i].exp_key_err);
}
gnutls_global_deinit();
}
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