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