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/*
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* Copyright (C) 2010-2012 Free Software Foundation, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* GnuTLS is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuTLS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <gnutls/gnutls.h>
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#include <gnutls/x509.h>
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#include <gnutls/openpgp.h>
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#include <gnutls/pkcs12.h>
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#include <gnutls/tpm.h>
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#include <gnutls/abstract.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <time.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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/* Gnulib portability files. */
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#include <read-file.h>
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#include "certtool-common.h"
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#include "tpmtool-args.h"
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#include "common.h"
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static void cmd_parser(int argc, char **argv);
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static void tpm_generate(FILE * outfile, unsigned int key_type,
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unsigned int bits, unsigned int flags,
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unsigned int srk_well_known);
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static void tpm_pubkey(const char *url, FILE * outfile,
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unsigned int srk_well_known);
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static void tpm_delete(const char *url, FILE * outfile,
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unsigned int srk_well_known);
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static void tpm_test_sign(const char *url, FILE * outfile);
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static void tpm_list(FILE * outfile);
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static gnutls_x509_crt_fmt_t incert_format, outcert_format;
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static gnutls_tpmkey_fmt_t inkey_format, outkey_format;
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static FILE *outfile;
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static const char *outfile_name = NULL;
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static FILE *infile;
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int batch = 0;
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int ask_pass = 0;
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void app_exit(int val)
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{
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if (val != 0) {
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if (outfile_name != NULL) {
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remove(outfile_name);
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}
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}
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exit(val);
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}
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static void tls_log_func(int level, const char *str)
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{
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fprintf(stderr, "|<%d>| %s", level, str);
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}
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int main(int argc, char **argv)
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{
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cmd_parser(argc, argv);
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return 0;
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}
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static void cmd_parser(int argc, char **argv)
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{
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int ret, debug = 0;
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unsigned int key_type = GNUTLS_PK_UNKNOWN;
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unsigned int bits = 0;
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unsigned int genflags = 0;
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/* Note that the default sec-param is legacy because several TPMs
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* cannot handle larger keys.
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*/
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const char *sec_param = "legacy";
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optionProcess(&tpmtoolOptions, argc, argv);
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if (HAVE_OPT(DEBUG))
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debug = OPT_VALUE_DEBUG;
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if (HAVE_OPT(INDER)) {
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incert_format = GNUTLS_X509_FMT_DER;
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inkey_format = GNUTLS_TPMKEY_FMT_DER;
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} else {
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incert_format = GNUTLS_X509_FMT_PEM;
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inkey_format = GNUTLS_TPMKEY_FMT_CTK_PEM;
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}
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if (HAVE_OPT(OUTDER)) {
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outcert_format = GNUTLS_X509_FMT_DER;
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outkey_format = GNUTLS_TPMKEY_FMT_DER;
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} else {
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outcert_format = GNUTLS_X509_FMT_PEM;
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outkey_format = GNUTLS_TPMKEY_FMT_CTK_PEM;
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}
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if (HAVE_OPT(REGISTER))
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genflags |= GNUTLS_TPM_REGISTER_KEY;
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if (!HAVE_OPT(LEGACY))
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genflags |= GNUTLS_TPM_KEY_SIGNING;
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if (HAVE_OPT(USER))
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genflags |= GNUTLS_TPM_KEY_USER;
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gnutls_global_set_log_function(tls_log_func);
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gnutls_global_set_log_level(debug);
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if (debug > 1)
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printf("Setting log level to %d\n", debug);
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if ((ret = gnutls_global_init()) < 0) {
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fprintf(stderr, "global_init: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (HAVE_OPT(OUTFILE)) {
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outfile = safe_open_rw(OPT_ARG(OUTFILE), 0);
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if (outfile == NULL) {
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fprintf(stderr, "%s\n", OPT_ARG(OUTFILE));
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exit(1);
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}
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outfile_name = OPT_ARG(OUTFILE);
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} else
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outfile = stdout;
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if (HAVE_OPT(INFILE)) {
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infile = fopen(OPT_ARG(INFILE), "rb");
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if (infile == NULL) {
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fprintf(stderr, "%s\n", OPT_ARG(INFILE));
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exit(1);
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}
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} else
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infile = stdin;
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if (HAVE_OPT(SEC_PARAM))
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sec_param = OPT_ARG(SEC_PARAM);
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if (HAVE_OPT(BITS))
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bits = OPT_VALUE_BITS;
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if (HAVE_OPT(GENERATE_RSA)) {
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key_type = GNUTLS_PK_RSA;
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bits = get_bits(key_type, bits, sec_param, 0);
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tpm_generate(outfile, key_type, bits, genflags, HAVE_OPT(SRK_WELL_KNOWN));
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} else if (HAVE_OPT(PUBKEY)) {
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tpm_pubkey(OPT_ARG(PUBKEY), outfile, HAVE_OPT(SRK_WELL_KNOWN));
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} else if (HAVE_OPT(DELETE)) {
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tpm_delete(OPT_ARG(DELETE), outfile, HAVE_OPT(SRK_WELL_KNOWN));
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} else if (HAVE_OPT(LIST)) {
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tpm_list(outfile);
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} else if (HAVE_OPT(TEST_SIGN)) {
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tpm_test_sign(OPT_ARG(TEST_SIGN), outfile);
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} else {
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USAGE(1);
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}
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|
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fclose(outfile);
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gnutls_global_deinit();
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}
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#define TEST_DATA "Test data to sign"
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static void
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tpm_test_sign(const char *url, FILE * out)
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{
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gnutls_privkey_t privkey;
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gnutls_pubkey_t pubkey;
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int ret;
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gnutls_datum_t data, sig = {NULL, 0};
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int pk;
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pkcs11_common(NULL);
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data.data = (void*)TEST_DATA;
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data.size = sizeof(TEST_DATA)-1;
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ret = gnutls_privkey_init(&privkey);
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if (ret < 0) {
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fprintf(stderr, "Error in %s:%d: %s\n", __func__,
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__LINE__, gnutls_strerror(ret));
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exit(1);
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}
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ret = gnutls_pubkey_init(&pubkey);
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if (ret < 0) {
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fprintf(stderr, "Error in %s:%d: %s\n", __func__,
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__LINE__, gnutls_strerror(ret));
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exit(1);
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}
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ret = gnutls_privkey_import_url(privkey, url, 0);
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if (ret < 0) {
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fprintf(stderr, "Cannot import private key: %s\n",
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gnutls_strerror(ret));
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exit(1);
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}
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ret = gnutls_pubkey_import_tpm_url(pubkey, url, NULL, 0);
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aea12f |
if (ret < 0) {
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fprintf(stderr, "Cannot import public key: %s\n",
|
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aea12f |
gnutls_strerror(ret));
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exit(1);
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aea12f |
}
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ret = gnutls_privkey_sign_data(privkey, GNUTLS_DIG_SHA1, 0, &data, &sig);
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if (ret < 0) {
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fprintf(stderr, "Cannot sign data: %s\n",
|
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gnutls_strerror(ret));
|
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aea12f |
exit(1);
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}
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pk = gnutls_pubkey_get_pk_algorithm(pubkey, NULL);
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fprintf(stderr, "Verifying against private key parameters... ");
|
|
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ret = gnutls_pubkey_verify_data2(pubkey, gnutls_pk_to_sign(pk, GNUTLS_DIG_SHA1),
|
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0, &data, &sig);
|
|
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if (ret < 0) {
|
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fprintf(stderr, "Cannot verify signed data: %s\n",
|
|
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aea12f |
gnutls_strerror(ret));
|
|
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exit(1);
|
|
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aea12f |
}
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fprintf(stderr, "ok\n");
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|
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gnutls_free(sig.data);
|
|
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gnutls_pubkey_deinit(pubkey);
|
|
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gnutls_privkey_deinit(privkey);
|
|
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}
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|
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static void tpm_generate(FILE * out, unsigned int key_type,
|
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unsigned int bits, unsigned int flags,
|
|
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unsigned int srk_well_known)
|
|
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{
|
|
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int ret;
|
|
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char *srk_pass = NULL, *key_pass = NULL;
|
|
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gnutls_datum_t privkey, pubkey;
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|
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if (!srk_well_known) {
|
|
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srk_pass = getpass("Enter SRK password: ");
|
|
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if (srk_pass != NULL)
|
|
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srk_pass = strdup(srk_pass);
|
|
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aea12f |
}
|
|
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|
|
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if (!(flags & GNUTLS_TPM_REGISTER_KEY)) {
|
|
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key_pass = getpass("Enter key password: ");
|
|
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if (key_pass != NULL)
|
|
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key_pass = strdup(key_pass);
|
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aea12f |
}
|
|
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|
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ret =
|
|
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gnutls_tpm_privkey_generate(key_type, bits, srk_pass, key_pass,
|
|
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outkey_format, outcert_format,
|
|
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aea12f |
&privkey, &pubkey, flags);
|
|
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aea12f |
|
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free(key_pass);
|
|
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free(srk_pass);
|
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aea12f |
|
|
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aea12f |
if (ret < 0) {
|
|
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aea12f |
fprintf(stderr, "gnutls_tpm_privkey_generate: %s\n",
|
|
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aea12f |
gnutls_strerror(ret));
|
|
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aea12f |
exit(1);
|
|
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aea12f |
}
|
|
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|
|
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fwrite(privkey.data, 1, privkey.size, out);
|
|
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fputs("\n", out);
|
|
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aea12f |
|
|
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aea12f |
gnutls_free(privkey.data);
|
|
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aea12f |
gnutls_free(pubkey.data);
|
|
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aea12f |
}
|
|
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aea12f |
|
|
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aea12f |
static void tpm_delete(const char *url, FILE * out,
|
|
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aea12f |
unsigned int srk_well_known)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
int ret;
|
|
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aea12f |
char *srk_pass = NULL;
|
|
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aea12f |
|
|
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aea12f |
if (!srk_well_known)
|
|
Packit |
aea12f |
srk_pass = getpass("Enter SRK password: ");
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
ret = gnutls_tpm_privkey_delete(url, srk_pass);
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
fprintf(stderr, "gnutls_tpm_privkey_delete: %s\n",
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
fprintf(out, "Key %s deleted\n", url);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
static void tpm_list(FILE * out)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
int ret;
|
|
Packit |
aea12f |
gnutls_tpm_key_list_t list;
|
|
Packit |
aea12f |
unsigned int i;
|
|
Packit |
aea12f |
char *url;
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
ret = gnutls_tpm_get_registered(&list);
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
fprintf(stderr, "gnutls_tpm_get_registered: %s\n",
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
fprintf(out, "Available keys:\n");
|
|
Packit |
aea12f |
for (i = 0;; i++) {
|
|
Packit |
aea12f |
ret = gnutls_tpm_key_list_get_url(list, i, &url, 0);
|
|
Packit |
aea12f |
if (ret == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE)
|
|
Packit |
aea12f |
break;
|
|
Packit |
aea12f |
else if (ret < 0) {
|
|
Packit |
aea12f |
fprintf(stderr, "gnutls_tpm_key_list_get_url: %s\n",
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
gnutls_tpm_key_list_deinit(list);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
fprintf(out, "\t%u: %s\n", i, url);
|
|
Packit |
aea12f |
gnutls_free(url);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_tpm_key_list_deinit(list);
|
|
Packit |
aea12f |
fputs("\n", out);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
static void tpm_pubkey(const char *url, FILE * out, unsigned int srk_well_known)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
int ret;
|
|
Packit |
aea12f |
char *srk_pass = NULL;
|
|
Packit |
aea12f |
gnutls_pubkey_t pubkey;
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (!srk_well_known) {
|
|
Packit |
aea12f |
srk_pass = getpass("Enter SRK password: ");
|
|
Packit |
aea12f |
if (srk_pass != NULL)
|
|
Packit |
aea12f |
srk_pass = strdup(srk_pass);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_pubkey_init(&pubkey);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
ret = gnutls_pubkey_import_tpm_url(pubkey, url, srk_pass, 0);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
free(srk_pass);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
fprintf(stderr, "gnutls_pubkey_import_tpm_url: %s\n",
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
print_pubkey_info(pubkey, out, GNUTLS_CRT_PRINT_FULL, GNUTLS_X509_FMT_PEM, 1);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_pubkey_deinit(pubkey);
|
|
Packit |
aea12f |
}
|