1ced56a00Sopenharmony_ci// SPDX-License-Identifier: MIT
2ced56a00Sopenharmony_ci/*
3ced56a00Sopenharmony_ci * Test libfsverity_sign_digest().
4ced56a00Sopenharmony_ci *
5ced56a00Sopenharmony_ci * Copyright 2020 Google LLC
6ced56a00Sopenharmony_ci *
7ced56a00Sopenharmony_ci * Use of this source code is governed by an MIT-style
8ced56a00Sopenharmony_ci * license that can be found in the LICENSE file or at
9ced56a00Sopenharmony_ci * https://opensource.org/licenses/MIT.
10ced56a00Sopenharmony_ci */
11ced56a00Sopenharmony_ci
12ced56a00Sopenharmony_ci#include "utils.h"
13ced56a00Sopenharmony_ci
14ced56a00Sopenharmony_ci#include <fcntl.h>
15ced56a00Sopenharmony_ci
16ced56a00Sopenharmony_ci#define SHA256_DIGEST_SIZE 32
17ced56a00Sopenharmony_ci
18ced56a00Sopenharmony_ciint main(void)
19ced56a00Sopenharmony_ci{
20ced56a00Sopenharmony_ci	struct libfsverity_digest *d = xzalloc(sizeof(*d) + SHA256_DIGEST_SIZE);
21ced56a00Sopenharmony_ci	const struct libfsverity_signature_params params = {
22ced56a00Sopenharmony_ci		.keyfile = "testdata/key.pem",
23ced56a00Sopenharmony_ci		.certfile = "testdata/cert.pem",
24ced56a00Sopenharmony_ci	};
25ced56a00Sopenharmony_ci	u8 *sig;
26ced56a00Sopenharmony_ci	size_t sig_size;
27ced56a00Sopenharmony_ci	struct filedes file;
28ced56a00Sopenharmony_ci	u8 *expected_sig;
29ced56a00Sopenharmony_ci	u64 expected_sig_size;
30ced56a00Sopenharmony_ci	int err;
31ced56a00Sopenharmony_ci
32ced56a00Sopenharmony_ci	install_libfsverity_error_handler();
33ced56a00Sopenharmony_ci
34ced56a00Sopenharmony_ci	d->digest_algorithm = FS_VERITY_HASH_ALG_SHA256;
35ced56a00Sopenharmony_ci	d->digest_size = SHA256_DIGEST_SIZE;
36ced56a00Sopenharmony_ci	memcpy(d->digest,
37ced56a00Sopenharmony_ci	       "\x91\x79\x00\xb0\xd2\x99\x45\x4a\xa3\x04\xd5\xde\xbc\x6f\x39"
38ced56a00Sopenharmony_ci	       "\xe4\xaf\x7b\x5a\xbe\x33\xbd\xbc\x56\x8d\x5d\x8f\x1e\x5c\x4d"
39ced56a00Sopenharmony_ci	       "\x86\x52", SHA256_DIGEST_SIZE);
40ced56a00Sopenharmony_ci
41ced56a00Sopenharmony_ci	err = libfsverity_sign_digest(d, &params, &sig, &sig_size);
42ced56a00Sopenharmony_ci	ASSERT(err == 0);
43ced56a00Sopenharmony_ci
44ced56a00Sopenharmony_ci	ASSERT(open_file(&file, "testdata/file.sig", O_RDONLY, 0));
45ced56a00Sopenharmony_ci	ASSERT(get_file_size(&file, &expected_sig_size));
46ced56a00Sopenharmony_ci	ASSERT(sig_size == expected_sig_size);
47ced56a00Sopenharmony_ci	expected_sig = xmalloc(sig_size);
48ced56a00Sopenharmony_ci	ASSERT(full_read(&file, expected_sig, sig_size));
49ced56a00Sopenharmony_ci	ASSERT(!memcmp(sig, expected_sig, sig_size));
50ced56a00Sopenharmony_ci
51ced56a00Sopenharmony_ci	free(d);
52ced56a00Sopenharmony_ci	free(sig);
53ced56a00Sopenharmony_ci	free(expected_sig);
54ced56a00Sopenharmony_ci	filedes_close(&file);
55ced56a00Sopenharmony_ci	printf("test_sign_digest passed\n");
56ced56a00Sopenharmony_ci	return 0;
57ced56a00Sopenharmony_ci}
58