2 This file is part of GNUnet.
3 (C) 2012, 2013 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file util/gnunet-ecc.c
23 * @brief tool to manipulate ECC key files
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_testing_lib.h"
33 * Flag for printing public key.
35 static int print_public_key;
38 * Flag for printing hash of public key.
40 static int print_peer_identity;
43 * Flag for printing short hash of public key.
45 static int print_short_identity;
48 * Option set to create a bunch of keys at once.
50 static unsigned int make_keys;
54 * Create a flat file with a large number of key pairs for testing.
57 create_keys (const char *fn)
60 struct GNUNET_CRYPTO_EccPrivateKey *pk;
62 if (NULL == (f = fopen (fn, "w+")))
65 _("Failed to open `%s': %s\n"),
71 _("Generating %u keys, please wait"),
73 while (0 < make_keys--)
77 if (NULL == (pk = GNUNET_CRYPTO_ecc_key_create ()))
82 if (GNUNET_TESTING_HOSTKEYFILESIZE !=
84 GNUNET_TESTING_HOSTKEYFILESIZE, f))
87 _("\nFailed to write to `%s': %s\n"),
90 GNUNET_CRYPTO_ecc_key_free (pk);
93 GNUNET_CRYPTO_ecc_key_free (pk);
95 if (UINT_MAX == make_keys)
100 _("\nError, %u keys not generated\n"), make_keys);
106 * Main function that will be run by the scheduler.
109 * @param args remaining command-line arguments
110 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
111 * @param cfg configuration
114 run (void *cls, char *const *args, const char *cfgfile,
115 const struct GNUNET_CONFIGURATION_Handle *cfg)
117 struct GNUNET_CRYPTO_EccPrivateKey *pk;
118 struct GNUNET_CRYPTO_EccPublicKey pub;
119 struct GNUNET_PeerIdentity pid;
123 fprintf (stderr, _("No hostkey file specified on command line\n"));
128 create_keys (args[0]);
131 pk = GNUNET_CRYPTO_ecc_key_create_from_file (args[0]);
134 if (print_public_key)
138 GNUNET_CRYPTO_ecc_key_get_public (pk, &pub);
139 s = GNUNET_CRYPTO_ecc_public_key_to_string (&pub);
140 fprintf (stdout, "%s\n", s);
143 if (print_peer_identity)
145 struct GNUNET_CRYPTO_HashAsciiEncoded enc;
147 GNUNET_CRYPTO_ecc_key_get_public (pk, &pub);
148 GNUNET_CRYPTO_hash (&pub, sizeof (pub), &pid.hashPubKey);
149 GNUNET_CRYPTO_hash_to_enc (&pid.hashPubKey, &enc);
150 fprintf (stdout, "%s\n", enc.encoding);
152 if (print_short_identity)
154 struct GNUNET_CRYPTO_ShortHashAsciiEncoded enc;
155 struct GNUNET_CRYPTO_ShortHashCode sh;
157 GNUNET_CRYPTO_ecc_key_get_public (pk, &pub);
158 GNUNET_CRYPTO_short_hash (&pub, sizeof (pub), &sh);
159 GNUNET_CRYPTO_short_hash_to_enc (&sh, &enc);
160 fprintf (stdout, "%s\n", enc.short_encoding);
162 GNUNET_CRYPTO_ecc_key_free (pk);
167 * Program to manipulate ECC key files.
169 * @param argc number of arguments from the command line
170 * @param argv command line arguments
171 * @return 0 ok, 1 on error
174 main (int argc, char *const *argv)
176 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
177 { 'g', "generate-keys", "COUNT",
178 gettext_noop ("create COUNT public-private key pairs (for testing)"),
179 1, &GNUNET_GETOPT_set_uint, &make_keys },
180 { 'p', "print-public-key", NULL,
181 gettext_noop ("print the public key in ASCII format"),
182 0, &GNUNET_GETOPT_set_one, &print_public_key },
183 { 'P', "print-peer-identity", NULL,
184 gettext_noop ("print the hash of the public key in ASCII format"),
185 0, &GNUNET_GETOPT_set_one, &print_peer_identity },
186 { 's', "print-short-identity", NULL,
187 gettext_noop ("print the short hash of the public key in ASCII format"),
188 0, &GNUNET_GETOPT_set_one, &print_short_identity },
189 GNUNET_GETOPT_OPTION_END
193 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
197 GNUNET_PROGRAM_run (argc, argv, "gnunet-ecc [OPTIONS] keyfile",
198 gettext_noop ("Manipulate GNUnet private ECC key files"),
199 options, &run, NULL)) ? 0 : 1;
200 GNUNET_free ((void*) argv);
204 /* end of gnunet-ecc.c */