1/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file.
4 *
5 * Tests for host library vboot2 keyblock functions
6 */
7
8#include <stdio.h>
9#include <unistd.h>
10
11#include "2sysincludes.h"
12#include "2common.h"
13#include "2rsa.h"
14#include "vb2_common.h"
15#include "host_common.h"
16#include "host_key2.h"
17#include "host_keyblock2.h"
18
19#include "test_common.h"
20
21static void keyblock_tests(const char *keys_dir)
22{
23	struct vb2_public_key *pubk2048, *pubk4096, *pubk8192, pubkhash;
24	struct vb2_private_key *prik4096, *prik8192;
25	struct vb2_packed_key *pak, *pakgood;
26	struct vb2_keyblock *kb;
27	const struct vb2_private_key *prikhash;
28	const struct vb2_private_key *prik[2];
29	char fname[1024];
30	const char test_desc[] = "Test keyblock";
31
32	uint8_t workbuf[VB2_KEY_BLOCK_VERIFY_WORKBUF_BYTES]
33		 __attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
34	struct vb2_workbuf wb;
35
36	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
37
38	/* Read keys */
39	sprintf(fname, "%s/key_rsa2048.keyb", keys_dir);
40	TEST_SUCC(vb2_public_key_read_keyb(&pubk2048, fname),
41					   "Read public key 2");
42	vb2_public_key_set_desc(pubk2048, "Test RSA2048 public key");
43	pubk2048->hash_alg = VB2_HASH_SHA256;
44
45	sprintf(fname, "%s/key_rsa4096.keyb", keys_dir);
46	TEST_SUCC(vb2_public_key_read_keyb(&pubk4096, fname),
47					   "Read public key 1");
48	vb2_public_key_set_desc(pubk4096, "Test RSA4096 public key");
49	pubk4096->hash_alg = VB2_HASH_SHA256;
50
51	sprintf(fname, "%s/key_rsa8192.keyb", keys_dir);
52	TEST_SUCC(vb2_public_key_read_keyb(&pubk8192, fname),
53					   "Read public key 2");
54	vb2_public_key_set_desc(pubk8192, "Test RSA8192 public key");
55	pubk8192->hash_alg = VB2_HASH_SHA512;
56
57	sprintf(fname, "%s/key_rsa4096.pem", keys_dir);
58	TEST_SUCC(vb2_private_key_read_pem(&prik4096, fname),
59		  "Read private key 2");
60	vb2_private_key_set_desc(prik4096, "Test RSA4096 private key");
61	prik4096->sig_alg = VB2_SIG_RSA4096;
62	prik4096->hash_alg = VB2_HASH_SHA256;
63
64	sprintf(fname, "%s/key_rsa8192.pem", keys_dir);
65	TEST_SUCC(vb2_private_key_read_pem(&prik8192, fname),
66		  "Read private key 1");
67	vb2_private_key_set_desc(prik8192, "Test RSA8192 private key");
68	prik8192->sig_alg = VB2_SIG_RSA8192;
69	prik8192->hash_alg = VB2_HASH_SHA512;
70
71	TEST_SUCC(vb2_private_key_hash(&prikhash, VB2_HASH_SHA512),
72		  "Create private hash key");
73
74	TEST_SUCC(vb2_public_key_hash(&pubkhash, VB2_HASH_SHA512),
75		  "Create public hash key");
76
77	TEST_SUCC(vb2_public_key_pack(&pakgood, pubk2048), "Test packed key");
78
79	/* Sign a keyblock with one key */
80	prik[0] = prik4096;
81	TEST_SUCC(vb2_keyblock_create(&kb, pubk2048, prik, 1, 0x1234, NULL),
82		  "Keyblock single");
83	TEST_PTR_NEQ(kb, NULL, "  kb_ptr");
84	TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, pubk4096, &wb),
85		  "  verify");
86	TEST_EQ(strcmp(vb2_common_desc(kb), pubk2048->desc), 0,	"  desc");
87	TEST_EQ(kb->flags, 0x1234, "  flags");
88
89	pak = (struct vb2_packed_key *)((uint8_t *)kb + kb->key_offset);
90	TEST_EQ(0, memcmp(pak, pakgood, pakgood->c.total_size), "  data key");
91	free(kb);
92
93	/* Sign a keyblock with two keys */
94	prik[0] = prik8192;
95	prik[1] = prikhash;
96	TEST_SUCC(vb2_keyblock_create(&kb, pubk4096, prik, 2, 0, test_desc),
97		  "Keyblock multiple");
98	TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, pubk8192, &wb),
99		  "  verify 1");
100	TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, &pubkhash, &wb),
101		  "  verify 2");
102	TEST_EQ(strcmp(vb2_common_desc(kb), test_desc), 0,	"  desc");
103	TEST_EQ(kb->flags, 0, "  flags");
104	free(kb);
105
106	/* Test errors */
107	prik[0] = prik8192;
108	prik8192->hash_alg = VB2_HASH_INVALID;
109	TEST_EQ(vb2_keyblock_create(&kb, pubk4096, prik, 1, 0, NULL),
110		VB2_KEYBLOCK_CREATE_SIG_SIZE, "Keyblock bad sig size");
111	TEST_PTR_EQ(kb, NULL, "  kb_ptr");
112
113	prik[0] = prik4096;
114	pubk4096->sig_alg = VB2_SIG_INVALID;
115	TEST_EQ(vb2_keyblock_create(&kb, pubk4096, prik, 1, 0, NULL),
116		VB2_KEYBLOCK_CREATE_DATA_KEY, "Keyblock bad data key");
117
118	/* Free keys */
119	free(pakgood);
120	vb2_public_key_free(pubk2048);
121	vb2_public_key_free(pubk4096);
122	vb2_public_key_free(pubk8192);
123	vb2_private_key_free(prik4096);
124	vb2_private_key_free(prik8192);
125}
126
127int main(int argc, char *argv[]) {
128
129	if (argc == 2) {
130		keyblock_tests(argv[1]);
131	} else {
132		fprintf(stderr, "Usage: %s <keys_dir>", argv[0]);
133		return -1;
134	}
135
136	return gTestSuccess ? 0 : 255;
137}
138