456 lines
15 KiB
C
456 lines
15 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Dan Williams <dcbw@redhat.com>
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* Copyright (C) 2007 - 2011 Red Hat, Inc.
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*/
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#include "libnm-core/nm-default-libnm-core.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "nm-crypto-impl.h"
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#include "nm-utils.h"
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#include "nm-errors.h"
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#include "nm-core-internal.h"
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#include "nm-utils/nm-test-utils.h"
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#define TEST_CERT_DIR NM_BUILD_SRCDIR "/libnm-core/tests/certs"
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#if 0
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static const char *pem_rsa_key_begin = "-----BEGIN RSA PRIVATE KEY-----";
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static const char *pem_rsa_key_end = "-----END RSA PRIVATE KEY-----";
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static const char *pem_dsa_key_begin = "-----BEGIN DSA PRIVATE KEY-----";
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static const char *pem_dsa_key_end = "-----END DSA PRIVATE KEY-----";
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static void
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dump_key_to_pem (const char *key, gsize key_len, int key_type)
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{
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char *b64 = NULL;
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GString *str = NULL;
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const char *start_tag;
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const char *end_tag;
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char *p;
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switch (key_type) {
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case NM_CRYPTO_KEY_TYPE_RSA:
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start_tag = pem_rsa_key_begin;
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end_tag = pem_rsa_key_end;
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break;
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case NM_CRYPTO_KEY_TYPE_DSA:
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start_tag = pem_dsa_key_begin;
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end_tag = pem_dsa_key_end;
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break;
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default:
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g_warning ("Unknown key type %d", key_type);
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return;
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}
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b64 = g_base64_encode ((const unsigned char *) key, key_len);
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if (!b64) {
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g_warning ("Couldn't base64 encode the key.");
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goto out;
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}
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str = g_string_new (NULL);
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g_string_append (str, start_tag);
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g_string_append_c (str, '\n');
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for (p = b64; p < (b64 + strlen (b64)); p += 64) {
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g_string_append_len (str, p, strnlen (p, 64));
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g_string_append_c (str, '\n');
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}
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g_string_append (str, end_tag);
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g_string_append_c (str, '\n');
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g_message ("Decrypted private key:\n\n%s", str->str);
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out:
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g_free (b64);
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if (str)
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g_string_free (str, TRUE);
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}
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#endif
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static void
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test_cert(gconstpointer test_data)
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{
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gs_free char * path = NULL;
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gs_unref_bytes GBytes *cert = NULL;
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NMCryptoFileFormat format = NM_CRYPTO_FILE_FORMAT_UNKNOWN;
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GError * error = NULL;
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gboolean success;
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path = g_build_filename(TEST_CERT_DIR, (const char *) test_data, NULL);
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success = nm_crypto_load_and_verify_certificate(path, &format, &cert, &error);
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nmtst_assert_success(success, error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_X509);
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g_assert(nm_utils_file_is_certificate(path));
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}
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static void
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test_load_private_key(const char *path,
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const char *password,
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const char *decrypted_path,
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int expected_error)
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{
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NMCryptoKeyType key_type = NM_CRYPTO_KEY_TYPE_UNKNOWN;
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gboolean is_encrypted = FALSE;
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gs_unref_bytes GBytes *array = NULL;
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GError * error = NULL;
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g_assert(nm_utils_file_is_private_key(path, &is_encrypted));
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g_assert(is_encrypted);
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array = nmtst_crypto_decrypt_openssl_private_key(path, password, &key_type, &error);
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/* Even if the password is wrong, we should determine the key type */
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g_assert_cmpint(key_type, ==, NM_CRYPTO_KEY_TYPE_RSA);
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if (expected_error != -1) {
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g_assert(array == NULL);
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g_assert_error(error, NM_CRYPTO_ERROR, expected_error);
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g_clear_error(&error);
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return;
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}
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if (password == NULL) {
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g_assert(array == NULL);
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g_assert_no_error(error);
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return;
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}
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g_assert(array != NULL);
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if (decrypted_path) {
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gs_free char *contents = NULL;
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gsize length;
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/* Compare the crypto decrypted key against a known-good decryption */
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if (!g_file_get_contents(decrypted_path, &contents, &length, NULL))
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g_assert_not_reached();
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g_assert(nm_utils_gbytes_equal_mem(array, contents, length));
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}
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}
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static void
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test_load_pkcs12(const char *path, const char *password, int expected_error)
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{
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NMCryptoFileFormat format = NM_CRYPTO_FILE_FORMAT_UNKNOWN;
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gboolean is_encrypted = FALSE;
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GError * error = NULL;
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g_assert(nm_utils_file_is_private_key(path, NULL));
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format = nm_crypto_verify_private_key(path, password, &is_encrypted, &error);
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if (expected_error != -1) {
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g_assert_error(error, NM_CRYPTO_ERROR, expected_error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_UNKNOWN);
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g_clear_error(&error);
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} else {
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g_assert_no_error(error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_PKCS12);
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g_assert(is_encrypted);
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}
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}
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static void
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test_load_pkcs12_no_password(const char *path)
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{
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NMCryptoFileFormat format = NM_CRYPTO_FILE_FORMAT_UNKNOWN;
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gboolean is_encrypted = FALSE;
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GError * error = NULL;
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g_assert(nm_utils_file_is_private_key(path, NULL));
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/* We should still get a valid returned crypto file format */
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format = nm_crypto_verify_private_key(path, NULL, &is_encrypted, &error);
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g_assert_no_error(error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_PKCS12);
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g_assert(is_encrypted);
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}
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static void
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test_is_pkcs12(const char *path, gboolean expect_fail)
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{
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gboolean is_pkcs12;
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GError * error = NULL;
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is_pkcs12 = nm_crypto_is_pkcs12_file(path, &error);
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if (expect_fail) {
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g_assert_error(error, NM_CRYPTO_ERROR, NM_CRYPTO_ERROR_INVALID_DATA);
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g_assert(!is_pkcs12);
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g_clear_error(&error);
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} else {
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g_assert_no_error(error);
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g_assert(is_pkcs12);
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}
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}
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static void
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test_load_pkcs8(const char *path, const char *password, int expected_error)
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{
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NMCryptoFileFormat format = NM_CRYPTO_FILE_FORMAT_UNKNOWN;
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gboolean is_encrypted = FALSE;
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GError * error = NULL;
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g_assert(nm_utils_file_is_private_key(path, NULL));
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format = nm_crypto_verify_private_key(path, password, &is_encrypted, &error);
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if (expected_error != -1) {
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g_assert_error(error, NM_CRYPTO_ERROR, expected_error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_UNKNOWN);
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g_clear_error(&error);
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} else {
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g_assert_no_error(error);
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g_assert_cmpint(format, ==, NM_CRYPTO_FILE_FORMAT_RAW_KEY);
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g_assert(is_encrypted);
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}
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}
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static void
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test_encrypt_private_key(const char *path, const char *password)
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{
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NMCryptoKeyType key_type = NM_CRYPTO_KEY_TYPE_UNKNOWN;
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gs_unref_bytes GBytes *array = NULL;
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gs_unref_bytes GBytes *encrypted = NULL;
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gs_unref_bytes GBytes *re_decrypted = NULL;
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GError * error = NULL;
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array = nmtst_crypto_decrypt_openssl_private_key(path, password, &key_type, &error);
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nmtst_assert_success(array, error);
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g_assert_cmpint(key_type, ==, NM_CRYPTO_KEY_TYPE_RSA);
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/* Now re-encrypt the private key */
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encrypted = nmtst_crypto_rsa_key_encrypt(g_bytes_get_data(array, NULL),
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g_bytes_get_size(array),
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password,
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NULL,
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&error);
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nmtst_assert_success(encrypted, error);
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/* Then re-decrypt the private key */
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key_type = NM_CRYPTO_KEY_TYPE_UNKNOWN;
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re_decrypted = nmtst_crypto_decrypt_openssl_private_key_data(g_bytes_get_data(encrypted, NULL),
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g_bytes_get_size(encrypted),
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password,
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&key_type,
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&error);
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nmtst_assert_success(re_decrypted, error);
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g_assert_cmpint(key_type, ==, NM_CRYPTO_KEY_TYPE_RSA);
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/* Compare the original decrypted key with the re-decrypted key */
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g_assert(g_bytes_equal(array, re_decrypted));
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}
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static void
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test_key(gconstpointer test_data)
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{
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char **parts, *path, *password, *decrypted_path;
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int len;
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parts = g_strsplit((const char *) test_data, ", ", -1);
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len = g_strv_length(parts);
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if (len != 2 && len != 3)
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g_error("wrong number of arguments (<key file>, <password>, [<decrypted key file>])");
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path = g_build_filename(TEST_CERT_DIR, parts[0], NULL);
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password = parts[1];
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decrypted_path = parts[2] ? g_build_filename(TEST_CERT_DIR, parts[2], NULL) : NULL;
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test_is_pkcs12(path, TRUE);
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test_load_private_key(path, password, decrypted_path, -1);
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test_load_private_key(path, "blahblahblah", NULL, NM_CRYPTO_ERROR_DECRYPTION_FAILED);
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test_load_private_key(path, NULL, NULL, -1);
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test_encrypt_private_key(path, password);
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g_free(path);
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g_free(decrypted_path);
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g_strfreev(parts);
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}
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static void
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test_key_decrypted(gconstpointer test_data)
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{
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const char *file = (const char *) test_data;
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gboolean is_encrypted = FALSE;
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char * path;
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path = g_build_filename(TEST_CERT_DIR, file, NULL);
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g_assert(nm_utils_file_is_private_key(path, &is_encrypted));
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g_assert(!is_encrypted);
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g_free(path);
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}
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static void
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test_pkcs12(gconstpointer test_data)
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{
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char **parts, *path, *password;
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parts = g_strsplit((const char *) test_data, ", ", -1);
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if (g_strv_length(parts) != 2)
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g_error("wrong number of arguments (<file>, <password>)");
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path = g_build_filename(TEST_CERT_DIR, parts[0], NULL);
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password = parts[1];
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test_is_pkcs12(path, FALSE);
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test_load_pkcs12(path, password, -1);
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test_load_pkcs12(path, "blahblahblah", NM_CRYPTO_ERROR_DECRYPTION_FAILED);
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test_load_pkcs12_no_password(path);
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g_free(path);
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g_strfreev(parts);
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}
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static void
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test_pkcs8(gconstpointer test_data)
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{
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char **parts, *path, *password;
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parts = g_strsplit((const char *) test_data, ", ", -1);
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if (g_strv_length(parts) != 2)
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g_error("wrong number of arguments (<file>, <password>)");
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path = g_build_filename(TEST_CERT_DIR, parts[0], NULL);
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password = parts[1];
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test_is_pkcs12(path, TRUE);
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/* Note: NSS and gnutls < 3.5.4 don't support all the ciphers that openssl
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* can use with PKCS#8 and thus the password can't be actually verified with
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* such libraries.
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*/
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test_load_pkcs8(path, password, -1);
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g_free(path);
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g_strfreev(parts);
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}
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#define SALT "sodium chloride"
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#define SHORT_PASSWORD "short"
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#define LONG_PASSWORD "this is a longer password than the short one"
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#define SHORT_DIGEST 16
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#define LONG_DIGEST 57
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struct {
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const char *salt, *password;
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gsize digest_size;
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const char *result;
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} md5_tests[] = {
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{NULL, SHORT_PASSWORD, SHORT_DIGEST, "4f09daa9d95bcb166a302407a0e0babe"},
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{NULL,
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SHORT_PASSWORD,
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LONG_DIGEST,
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"4f09daa9d95bcb166a302407a0e0babeb7d62e5baf706830d007c253f0fe7584ad7e92dc00a599ec277293c298ae7"
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"0ee3904c348e23be61c91"},
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{SALT, SHORT_PASSWORD, SHORT_DIGEST, "774771f7292210233b5724991d1f9894"},
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{SALT,
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SHORT_PASSWORD,
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LONG_DIGEST,
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"774771f7292210233b5724991d1f98941a6ffdb45e4dc7fa04b1fa6aceed379c1ade0577bc8f261d109942ed57369"
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"21c052664d72e0d5bade9"},
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{NULL, LONG_PASSWORD, SHORT_DIGEST, "e9c03517f81ff29bb777dac21fb1699c"},
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{NULL,
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LONG_PASSWORD,
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LONG_DIGEST,
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"e9c03517f81ff29bb777dac21fb1699c50968c7ccd8db4f0a59d00ffd87b05876d45f25a927d51a8400c35af60fbd"
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"64584349a8b7435d62fd9"},
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{SALT, LONG_PASSWORD, SHORT_DIGEST, "4e5c076e2f85f5e03994acbf3a9e10d6"},
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{SALT,
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LONG_PASSWORD,
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LONG_DIGEST,
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"4e5c076e2f85f5e03994acbf3a9e10d61a6969c9fdf47ae8b1f7e2725b3767b05cc974bfcb5344b630c91761e015e"
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"09d7794b5065662533bc9"},
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{NULL, "", SHORT_DIGEST, "d41d8cd98f00b204e9800998ecf8427e"},
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{SALT, "", SHORT_DIGEST, "7df1e0494c977195005d82a1809685e4"},
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};
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static void
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test_md5(void)
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{
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char digest[LONG_DIGEST], *hex;
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int i;
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for (i = 0; i < G_N_ELEMENTS(md5_tests); i++) {
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memset(digest, 0, sizeof(digest));
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nm_crypto_md5_hash((const guint8 *) md5_tests[i].salt,
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/* nm_crypto_md5_hash() used to clamp salt_len to 8. It
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* doesn't any more, so we need to do it here now to
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* get output that matches md5_tests[i].result.
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*/
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md5_tests[i].salt ? 8 : 0,
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(const guint8 *) md5_tests[i].password,
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strlen(md5_tests[i].password),
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(guint8 *) digest,
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md5_tests[i].digest_size);
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hex = nm_utils_bin2hexstr(digest, md5_tests[i].digest_size, -1);
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g_assert_cmpstr(hex, ==, md5_tests[i].result);
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g_free(hex);
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}
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}
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NMTST_DEFINE();
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int
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main(int argc, char **argv)
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{
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GError * error = NULL;
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gboolean success;
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int ret;
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nmtst_init(&argc, &argv, TRUE);
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success = _nm_crypto_init(&error);
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g_assert_no_error(error);
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g_assert(success);
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g_test_add_data_func("/libnm/crypto/cert/pem", "test_ca_cert.pem", test_cert);
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g_test_add_data_func("/libnm/crypto/cert/pem-2", "test2_ca_cert.pem", test_cert);
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g_test_add_data_func("/libnm/crypto/cert/der", "test_ca_cert.der", test_cert);
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g_test_add_data_func("/libnm/crypto/cert/pem-no-ending-newline",
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"ca-no-ending-newline.pem",
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test_cert);
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g_test_add_data_func("/libnm/crypto/cert/pem-combined", "test_key_and_cert.pem", test_cert);
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g_test_add_data_func("/libnm/crypto/cert/pem-combined-2", "test2_key_and_cert.pem", test_cert);
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g_test_add_data_func("/libnm/crypto/key/padding-6",
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"test_key_and_cert.pem, test, test-key-only-decrypted.der",
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test_key);
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g_test_add_data_func("/libnm/crypto/key/key-only",
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"test-key-only.pem, test, test-key-only-decrypted.der",
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test_key);
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g_test_add_data_func("/libnm/crypto/key/padding-8",
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"test2_key_and_cert.pem, 12345testing",
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test_key);
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g_test_add_data_func("/libnm/crypto/key/aes-128",
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"test-aes-128-key.pem, test-aes-password",
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test_key);
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g_test_add_data_func("/libnm/crypto/key/aes-256",
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"test-aes-256-key.pem, test-aes-password",
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test_key);
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g_test_add_data_func("/libnm/crypto/key/decrypted",
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"test-key-only-decrypted.pem",
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test_key_decrypted);
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g_test_add_data_func("/libnm/crypto/PKCS#12/1", "test-cert.p12, test", test_pkcs12);
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g_test_add_data_func("/libnm/crypto/PKCS#12/2", "test2-cert.p12, 12345testing", test_pkcs12);
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g_test_add_data_func("/libnm/crypto/PKCS#8", "pkcs8-enc-key.pem, 1234567890", test_pkcs8);
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g_test_add_func("/libnm/crypto/md5", test_md5);
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ret = g_test_run();
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return ret;
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}
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