2 * Copyright (C) 2010-2012 Free Software Foundation, Inc.
4 * Author: Nikos Mavrogiannopoulos
6 * This file is part of GnuTLS.
8 * GnuTLS is free software: you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
13 * GnuTLS is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
25 #include <gnutls/gnutls.h>
26 #include <gnutls/x509.h>
27 #include <gnutls/openpgp.h>
28 #include <gnutls/pkcs12.h>
29 #include <gnutls/tpm.h>
30 #include <gnutls/abstract.h>
39 #include <sys/types.h>
43 /* Gnulib portability files. */
44 #include <read-file.h>
46 #include "certtool-common.h"
47 #include "tpmtool-args.h"
50 static void cmd_parser(int argc, char **argv);
51 static void tpm_generate(FILE * outfile, unsigned int key_type,
52 unsigned int bits, unsigned int flags);
53 static void tpm_pubkey(const char *url, FILE * outfile);
54 static void tpm_delete(const char *url, FILE * outfile);
55 static void tpm_test_sign(const char *url, FILE * outfile);
56 static void tpm_list(FILE * outfile);
58 static gnutls_x509_crt_fmt_t incert_format, outcert_format;
59 static gnutls_tpmkey_fmt_t inkey_format, outkey_format;
66 static void tls_log_func(int level, const char *str)
68 fprintf(stderr, "|<%d>| %s", level, str);
72 int main(int argc, char **argv)
74 cmd_parser(argc, argv);
79 static void cmd_parser(int argc, char **argv)
83 unsigned int key_type = GNUTLS_PK_UNKNOWN;
84 unsigned int bits = 0;
85 unsigned int genflags = 0;
86 /* Note that the default sec-param is legacy because several TPMs
87 * cannot handle larger keys.
89 const char *sec_param = "legacy";
91 optct = optionProcess(&tpmtoolOptions, argc, argv);
96 debug = OPT_VALUE_DEBUG;
98 if (HAVE_OPT(INDER)) {
99 incert_format = GNUTLS_X509_FMT_DER;
100 inkey_format = GNUTLS_TPMKEY_FMT_DER;
102 incert_format = GNUTLS_X509_FMT_PEM;
103 inkey_format = GNUTLS_TPMKEY_FMT_CTK_PEM;
106 if (HAVE_OPT(OUTDER)) {
107 outcert_format = GNUTLS_X509_FMT_DER;
108 outkey_format = GNUTLS_TPMKEY_FMT_DER;
110 outcert_format = GNUTLS_X509_FMT_PEM;
111 outkey_format = GNUTLS_TPMKEY_FMT_CTK_PEM;
114 if (HAVE_OPT(REGISTER))
115 genflags |= GNUTLS_TPM_REGISTER_KEY;
116 if (!HAVE_OPT(LEGACY))
117 genflags |= GNUTLS_TPM_KEY_SIGNING;
119 genflags |= GNUTLS_TPM_KEY_USER;
121 gnutls_global_set_log_function(tls_log_func);
122 gnutls_global_set_log_level(debug);
124 printf("Setting log level to %d\n", debug);
126 if ((ret = gnutls_global_init()) < 0) {
127 fprintf(stderr, "global_init: %s\n", gnutls_strerror(ret));
131 if (HAVE_OPT(OUTFILE)) {
132 outfile = safe_open_rw(OPT_ARG(OUTFILE), 0);
133 if (outfile == NULL) {
134 fprintf(stderr, "%s\n", OPT_ARG(OUTFILE));
140 if (HAVE_OPT(INFILE)) {
141 infile = fopen(OPT_ARG(INFILE), "rb");
142 if (infile == NULL) {
143 fprintf(stderr, "%s\n", OPT_ARG(INFILE));
149 if (HAVE_OPT(SEC_PARAM))
150 sec_param = OPT_ARG(SEC_PARAM);
152 bits = OPT_VALUE_BITS;
155 if (HAVE_OPT(GENERATE_RSA)) {
156 key_type = GNUTLS_PK_RSA;
157 bits = get_bits(key_type, bits, sec_param, 0);
158 tpm_generate(outfile, key_type, bits, genflags);
159 } else if (HAVE_OPT(PUBKEY)) {
160 tpm_pubkey(OPT_ARG(PUBKEY), outfile);
161 } else if (HAVE_OPT(DELETE)) {
162 tpm_delete(OPT_ARG(DELETE), outfile);
163 } else if (HAVE_OPT(LIST)) {
165 } else if (HAVE_OPT(TEST_SIGN)) {
166 tpm_test_sign(OPT_ARG(TEST_SIGN), outfile);
173 gnutls_global_deinit();
176 #define TEST_DATA "Test data to sign"
179 tpm_test_sign(const char *url, FILE * out)
181 gnutls_privkey_t privkey;
182 gnutls_pubkey_t pubkey;
184 gnutls_datum_t data, sig = {NULL, 0};
189 data.data = (void*)TEST_DATA;
190 data.size = sizeof(TEST_DATA)-1;
192 ret = gnutls_privkey_init(&privkey);
194 fprintf(stderr, "Error in %s:%d: %s\n", __func__,
195 __LINE__, gnutls_strerror(ret));
199 ret = gnutls_pubkey_init(&pubkey);
201 fprintf(stderr, "Error in %s:%d: %s\n", __func__,
202 __LINE__, gnutls_strerror(ret));
206 ret = gnutls_privkey_import_url(privkey, url, 0);
208 fprintf(stderr, "Cannot import private key: %s\n",
209 gnutls_strerror(ret));
213 ret = gnutls_pubkey_import_tpm_url(pubkey, url, NULL, 0);
215 fprintf(stderr, "Cannot import public key: %s\n",
216 gnutls_strerror(ret));
220 ret = gnutls_privkey_sign_data(privkey, GNUTLS_DIG_SHA1, 0, &data, &sig);
222 fprintf(stderr, "Cannot sign data: %s\n",
223 gnutls_strerror(ret));
227 pk = gnutls_pubkey_get_pk_algorithm(pubkey, NULL);
229 fprintf(stderr, "Verifying against private key parameters... ");
230 ret = gnutls_pubkey_verify_data2(pubkey, gnutls_pk_to_sign(pk, GNUTLS_DIG_SHA1),
233 fprintf(stderr, "Cannot verify signed data: %s\n",
234 gnutls_strerror(ret));
238 fprintf(stderr, "ok\n");
240 gnutls_free(sig.data);
241 gnutls_pubkey_deinit(pubkey);
242 gnutls_privkey_deinit(privkey);
245 static void tpm_generate(FILE * out, unsigned int key_type,
246 unsigned int bits, unsigned int flags)
249 char *srk_pass, *key_pass = NULL;
250 gnutls_datum_t privkey, pubkey;
252 srk_pass = getpass("Enter SRK password: ");
253 if (srk_pass != NULL)
254 srk_pass = strdup(srk_pass);
256 if (!(flags & GNUTLS_TPM_REGISTER_KEY)) {
257 key_pass = getpass("Enter key password: ");
258 if (key_pass != NULL)
259 key_pass = strdup(key_pass);
263 gnutls_tpm_privkey_generate(key_type, bits, srk_pass, key_pass,
264 outkey_format, outcert_format,
265 &privkey, &pubkey, flags);
271 fprintf(stderr, "gnutls_tpm_privkey_generate: %s\n",
272 gnutls_strerror(ret));
277 fwrite(privkey.data, 1, privkey.size, out);
280 gnutls_free(privkey.data);
281 gnutls_free(pubkey.data);
284 static void tpm_delete(const char *url, FILE * out)
289 srk_pass = getpass("Enter SRK password: ");
291 ret = gnutls_tpm_privkey_delete(url, srk_pass);
293 fprintf(stderr, "gnutls_tpm_privkey_delete: %s\n",
294 gnutls_strerror(ret));
298 fprintf(out, "Key %s deleted\n", url);
301 static void tpm_list(FILE * out)
304 gnutls_tpm_key_list_t list;
308 ret = gnutls_tpm_get_registered(&list);
310 fprintf(stderr, "gnutls_tpm_get_registered: %s\n",
311 gnutls_strerror(ret));
315 fprintf(out, "Available keys:\n");
317 ret = gnutls_tpm_key_list_get_url(list, i, &url, 0);
318 if (ret == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE)
321 fprintf(stderr, "gnutls_tpm_key_list_get_url: %s\n",
322 gnutls_strerror(ret));
326 fprintf(out, "\t%u: %s\n", i, url);
333 static void tpm_pubkey(const char *url, FILE * out)
337 gnutls_pubkey_t pubkey;
339 srk_pass = getpass("Enter SRK password: ");
340 if (srk_pass != NULL)
341 srk_pass = strdup(srk_pass);
343 gnutls_pubkey_init(&pubkey);
345 ret = gnutls_pubkey_import_tpm_url(pubkey, url, srk_pass, 0);
350 fprintf(stderr, "gnutls_pubkey_import_tpm_url: %s\n",
351 gnutls_strerror(ret));
355 _pubkey_info(out, GNUTLS_CRT_PRINT_FULL, pubkey);
357 gnutls_pubkey_deinit(pubkey);