Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 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 key functions |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <unistd.h> |
| 10 | |
| 11 | #include "2sysincludes.h" |
| 12 | #include "2common.h" |
| 13 | #include "2rsa.h" |
Randall Spangler | 108d991 | 2014-12-02 15:55:56 -0800 | [diff] [blame] | 14 | #include "vb2_common.h" |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 15 | #include "host_common.h" |
| 16 | #include "host_key2.h" |
| 17 | #include "host_signature2.h" |
| 18 | #include "test_common.h" |
| 19 | |
| 20 | /* Test only the algorithms we use */ |
| 21 | struct alg_combo { |
| 22 | const char *name; |
| 23 | enum vb2_signature_algorithm sig_alg; |
| 24 | enum vb2_hash_algorithm hash_alg; |
| 25 | }; |
| 26 | |
| 27 | static const struct alg_combo test_algs[] = { |
| 28 | {"RSA2048/SHA-256", VB2_SIG_RSA2048, VB2_HASH_SHA256}, |
| 29 | {"RSA4096/SHA-256", VB2_SIG_RSA4096, VB2_HASH_SHA256}, |
| 30 | {"RSA8192/SHA-512", VB2_SIG_RSA8192, VB2_HASH_SHA512}, |
| 31 | }; |
| 32 | |
| 33 | const struct vb2_guid test_guid = {.raw = {0xaa}}; |
| 34 | const char *test_desc = "The test key"; |
| 35 | const char *test_sig_desc = "The test signature"; |
| 36 | const uint8_t test_data[] = "Some test data"; |
| 37 | const uint32_t test_size = sizeof(test_data); |
| 38 | |
| 39 | static void sig_tests(const struct alg_combo *combo, |
| 40 | const char *pemfile, |
| 41 | const char *keybfile) |
| 42 | { |
| 43 | struct vb2_private_key *prik, prik2; |
| 44 | const struct vb2_private_key *prihash, *priks[2]; |
| 45 | struct vb2_public_key *pubk, pubhash; |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 46 | struct vb2_signature *sig, *sig2; |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 47 | uint32_t size; |
| 48 | |
Bill Richardson | 73e5eb3 | 2015-01-26 12:18:25 -0800 | [diff] [blame] | 49 | uint8_t workbuf[VB2_VERIFY_DATA_WORKBUF_BYTES] |
| 50 | __attribute__ ((aligned (VB2_WORKBUF_ALIGN))); |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 51 | struct vb2_workbuf wb; |
| 52 | |
| 53 | uint8_t *buf; |
| 54 | uint32_t bufsize; |
| 55 | struct vb2_struct_common *c; |
| 56 | uint32_t c_sig_offs; |
| 57 | |
| 58 | vb2_workbuf_init(&wb, workbuf, sizeof(workbuf)); |
| 59 | |
| 60 | /* Create test keys */ |
| 61 | /* TODO: should read these from .vbprik2, .vbpubk2 files */ |
| 62 | TEST_SUCC(vb2_private_key_read_pem(&prik, pemfile), "Read private key"); |
| 63 | prik->guid = test_guid; |
| 64 | prik->hash_alg = combo->hash_alg; |
| 65 | prik->sig_alg = combo->sig_alg; |
| 66 | vb2_private_key_set_desc(prik, test_desc); |
| 67 | |
| 68 | TEST_SUCC(vb2_public_key_read_keyb(&pubk, keybfile), "Read pub key"); |
| 69 | pubk->guid = &test_guid; |
| 70 | pubk->hash_alg = combo->hash_alg; |
| 71 | vb2_public_key_set_desc(pubk, test_desc); |
| 72 | |
| 73 | TEST_SUCC(vb2_private_key_hash(&prihash, combo->hash_alg), |
| 74 | "Private hash key"); |
| 75 | TEST_SUCC(vb2_public_key_hash(&pubhash, combo->hash_alg), |
| 76 | "Public hash key"); |
| 77 | |
| 78 | priks[0] = prik; |
| 79 | priks[1] = prihash; |
| 80 | |
| 81 | /* Sign test data */ |
| 82 | TEST_SUCC(vb2_sign_data(&sig, test_data, test_size, prik, NULL), |
| 83 | "Sign good"); |
| 84 | TEST_PTR_NEQ(sig, NULL, " sig_ptr"); |
Randall Spangler | 9328bbf | 2014-11-24 12:55:29 -0800 | [diff] [blame] | 85 | TEST_EQ(0, strcmp(vb2_common_desc(sig), test_desc), " desc"); |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 86 | TEST_EQ(0, memcmp(&sig->guid, &test_guid, sizeof(test_guid)), " guid"); |
| 87 | TEST_EQ(sig->data_size, test_size, " data_size"); |
| 88 | TEST_SUCC(vb2_sig_size_for_key(&size, prik, NULL), "Sig size"); |
| 89 | TEST_EQ(size, sig->c.total_size, " size"); |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 90 | TEST_SUCC(vb2_verify_data(test_data, test_size, sig, pubk, &wb), |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 91 | "Verify good"); |
| 92 | free(sig); |
| 93 | |
| 94 | TEST_SUCC(vb2_sign_data(&sig, test_data, test_size, prik, |
| 95 | test_sig_desc), |
| 96 | "Sign with desc"); |
Randall Spangler | 9328bbf | 2014-11-24 12:55:29 -0800 | [diff] [blame] | 97 | TEST_EQ(0, strcmp(vb2_common_desc(sig), test_sig_desc), " desc"); |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 98 | free(sig); |
| 99 | |
| 100 | TEST_SUCC(vb2_sign_data(&sig, test_data, test_size, prik, ""), |
| 101 | "Sign with no desc"); |
| 102 | TEST_EQ(sig->c.desc_size, 0, " desc"); |
| 103 | TEST_SUCC(vb2_sig_size_for_key(&size, prik, ""), "Sig size"); |
| 104 | TEST_EQ(size, sig->c.total_size, " size"); |
| 105 | free(sig); |
| 106 | |
| 107 | TEST_SUCC(vb2_sign_data(&sig, test_data, test_size, prihash, NULL), |
| 108 | "Sign with hash"); |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 109 | TEST_SUCC(vb2_verify_data(test_data, test_size, sig, &pubhash, &wb), |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 110 | "Verify with hash"); |
| 111 | free(sig); |
| 112 | |
| 113 | prik2 = *prik; |
| 114 | prik2.sig_alg = VB2_SIG_INVALID; |
| 115 | TEST_EQ(vb2_sign_data(&sig, test_data, test_size, &prik2, NULL), |
| 116 | VB2_SIGN_DATA_SIG_SIZE, "Sign bad sig alg"); |
| 117 | |
| 118 | /* Sign an object with a little (24 bytes) data */ |
| 119 | c_sig_offs = sizeof(*c) + 24; |
| 120 | TEST_SUCC(vb2_sig_size_for_key(&size, prik, NULL), "Sig size"); |
| 121 | bufsize = c_sig_offs + size; |
Randall Spangler | 45562fb | 2014-12-01 15:06:53 -0800 | [diff] [blame] | 122 | buf = calloc(1, bufsize); |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 123 | memset(buf + sizeof(*c), 0x12, 24); |
| 124 | c = (struct vb2_struct_common *)buf; |
| 125 | c->total_size = bufsize; |
| 126 | |
| 127 | TEST_SUCC(vb2_sign_object(buf, c_sig_offs, prik, NULL), "Sign object"); |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 128 | sig = (struct vb2_signature *)(buf + c_sig_offs); |
| 129 | TEST_SUCC(vb2_verify_data(buf, c_sig_offs, sig, pubk, &wb), |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 130 | "Verify object"); |
| 131 | |
| 132 | TEST_EQ(vb2_sign_object(buf, c_sig_offs + 4, prik, NULL), |
| 133 | VB2_SIGN_OBJECT_OVERFLOW, "Sign object overflow"); |
| 134 | free(buf); |
| 135 | |
| 136 | /* Multiply sign an object */ |
| 137 | TEST_SUCC(vb2_sig_size_for_keys(&size, priks, 2), "Sigs size"); |
| 138 | bufsize = c_sig_offs + size; |
Randall Spangler | 45562fb | 2014-12-01 15:06:53 -0800 | [diff] [blame] | 139 | buf = calloc(1, bufsize); |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 140 | memset(buf + sizeof(*c), 0x12, 24); |
| 141 | c = (struct vb2_struct_common *)buf; |
| 142 | c->total_size = bufsize; |
| 143 | |
| 144 | TEST_SUCC(vb2_sign_object_multiple(buf, c_sig_offs, priks, 2), |
| 145 | "Sign multiple"); |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 146 | sig = (struct vb2_signature *)(buf + c_sig_offs); |
| 147 | TEST_SUCC(vb2_verify_data(buf, c_sig_offs, sig, pubk, &wb), |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 148 | "Verify object with sig 1"); |
Randall Spangler | 308d254 | 2014-12-04 09:54:37 -0800 | [diff] [blame] | 149 | sig2 = (struct vb2_signature *)(buf + c_sig_offs + sig->c.total_size); |
| 150 | TEST_SUCC(vb2_verify_data(buf, c_sig_offs, sig2, &pubhash, &wb), |
Randall Spangler | c644a8c | 2014-11-21 11:04:36 -0800 | [diff] [blame] | 151 | "Verify object with sig 2"); |
| 152 | |
| 153 | c->total_size -= 4; |
| 154 | TEST_EQ(vb2_sign_object_multiple(buf, c_sig_offs, priks, 2), |
| 155 | VB2_SIGN_OBJECT_OVERFLOW, "Sign multple overflow"); |
| 156 | |
| 157 | TEST_EQ(size, sig->c.total_size + sig2->c.total_size, |
| 158 | "Sigs size total"); |
| 159 | |
| 160 | free(buf); |
| 161 | |
| 162 | vb2_private_key_free(prik); |
| 163 | vb2_public_key_free(pubk); |
| 164 | } |
| 165 | |
| 166 | static int test_algorithm(const struct alg_combo *combo, const char *keys_dir) |
| 167 | { |
| 168 | int rsa_bits = vb2_rsa_sig_size(combo->sig_alg) * 8; |
| 169 | char pemfile[1024]; |
| 170 | char keybfile[1024]; |
| 171 | |
| 172 | printf("***Testing algorithm: %s\n", combo->name); |
| 173 | |
| 174 | sprintf(pemfile, "%s/key_rsa%d.pem", keys_dir, rsa_bits); |
| 175 | sprintf(keybfile, "%s/key_rsa%d.keyb", keys_dir, rsa_bits); |
| 176 | |
| 177 | sig_tests(combo, pemfile, keybfile); |
| 178 | |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | int main(int argc, char *argv[]) { |
| 183 | |
| 184 | if (argc == 2) { |
| 185 | int i; |
| 186 | |
| 187 | for (i = 0; i < ARRAY_SIZE(test_algs); i++) { |
| 188 | if (test_algorithm(test_algs + i, argv[1])) |
| 189 | return 1; |
| 190 | } |
| 191 | } else { |
| 192 | fprintf(stderr, "Usage: %s <keys_dir>", argv[0]); |
| 193 | return -1; |
| 194 | } |
| 195 | |
| 196 | return gTestSuccess ? 0 : 255; |
| 197 | } |