5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 2002 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
21 #include "silcincludes.h"
23 static char *silc_create_pk_identifier(void)
25 char *username = NULL, *realname = NULL;
26 char *hostname, email[256];
30 realname = silc_get_real_name();
33 hostname = silc_net_localhost();
37 /* Get username (mandatory) */
38 username = silc_get_username();
42 /* Create default email address, whether it is right or not */
43 snprintf(email, sizeof(email), "%s@%s", username, hostname);
45 ident = silc_pkcs_encode_identifier(username, hostname, realname, email,
55 /* Generate key pair */
57 bool silc_create_key_pair(const char *pkcs_name,
58 SilcUInt32 key_len_bits,
59 const char *pub_filename,
60 const char *prv_filename,
61 const char *pub_identifier,
62 SilcPKCS *return_pkcs,
63 SilcPublicKey *return_public_key,
64 SilcPrivateKey *return_private_key,
68 SilcPublicKey pub_key;
69 SilcPrivateKey prv_key;
74 char *pkfile = pub_filename ? strdup(pub_filename) : NULL;
75 char *prvfile = prv_filename ? strdup(prv_filename) : NULL;
76 char *alg = pkcs_name ? strdup(pkcs_name) : NULL;
77 char *identifier = pub_identifier ? strdup(pub_identifier) : NULL;
79 if (interactive && (!alg || !pub_filename || !prv_filename))
81 New pair of keys will be created. Please, answer to following questions.\n\
87 alg = silc_get_input("PKCS name (l to list names) [rsa]: ", FALSE);
91 if (*alg == 'l' || *alg == 'L') {
92 char *list = silc_pkcs_get_supported();
104 if (!silc_pkcs_is_supported(alg)) {
105 fprintf(stderr, "Unknown PKCS algorithm `%s' or crypto library"
106 "is not initialized", alg);
113 length = silc_get_input("Key length in key_len_bits [2048]: ", FALSE);
115 key_len_bits = atoi(length);
123 char *def = silc_create_pk_identifier();
126 memset(line, 0, sizeof(line));
128 snprintf(line, sizeof(line), "Identifier [%s]: ", def);
130 snprintf(line, sizeof(line),
131 "Identifier (eg. UN=jon, HN=jon.dummy.com, "
132 "RN=Jon Johnson, E=jon@dummy.com): ");
134 while (!identifier) {
135 identifier = silc_get_input(line, FALSE);
136 if (!identifier && def)
137 identifier = strdup(def);
141 fprintf(stderr, "Could not create public key identifier: %s\n",
145 identifier = strdup(def);
151 rng = silc_rng_alloc();
153 silc_rng_global_init(rng);
157 memset(line, 0, sizeof(line));
158 snprintf(line, sizeof(line), "Public key filename [public_key.pub] ");
159 pkfile = silc_get_input(line, FALSE);
162 pkfile = strdup("public_key.pub");
167 memset(line, 0, sizeof(line));
168 snprintf(line, sizeof(line), "Public key filename [private_key.prv] ");
169 prvfile = silc_get_input(line, FALSE);
172 prvfile = strdup("private_key.prv");
176 silc_pkcs_alloc(alg, &pkcs);
177 silc_pkcs_generate_key(pkcs, key_len_bits, rng);
179 /* Save public key into file */
180 key = silc_pkcs_get_public_key(pkcs, &key_len);
181 pub_key = silc_pkcs_public_key_alloc(silc_pkcs_get_name(pkcs),
182 identifier, key, key_len);
183 silc_pkcs_save_public_key(pkfile, pub_key, SILC_PKCS_FILE_PEM);
184 if (return_public_key)
185 *return_public_key = pub_key;
187 silc_pkcs_public_key_free(pub_key);
188 memset(key, 0, key_len);
191 /* Save private key into file */
192 key = silc_pkcs_get_private_key(pkcs, &key_len);
193 prv_key = silc_pkcs_private_key_alloc(silc_pkcs_get_name(pkcs),
195 silc_pkcs_save_private_key(prvfile, prv_key, NULL, SILC_PKCS_FILE_BIN);
196 if (return_private_key)
197 *return_private_key = prv_key;
199 silc_pkcs_private_key_free(prv_key);
200 memset(key, 0, key_len);
203 printf("Public key has been saved into `%s'.\n", pkfile);
204 printf("Private key has been saved into `%s'.\n", prvfile);
206 printf("Press <Enter> to continue...\n");
213 silc_pkcs_free(pkcs);
219 silc_free(identifier);
226 bool silc_load_key_pair(const char *pub_filename,
227 const char *prv_filename,
228 SilcPKCS *return_pkcs,
229 SilcPublicKey *return_public_key,
230 SilcPrivateKey *return_private_key)
232 SILC_LOG_DEBUG(("Loading public and private keys"));
234 if (silc_pkcs_load_public_key((char *)pub_filename, return_public_key,
235 SILC_PKCS_FILE_PEM) == FALSE)
236 if (silc_pkcs_load_public_key((char *)pub_filename, return_public_key,
237 SILC_PKCS_FILE_BIN) == FALSE)
240 if (silc_pkcs_load_private_key((char *)prv_filename, return_private_key,
241 SILC_PKCS_FILE_BIN) == FALSE)
242 if (silc_pkcs_load_private_key((char *)prv_filename, return_private_key,
243 SILC_PKCS_FILE_PEM) == FALSE)
247 silc_pkcs_alloc((*return_public_key)->name, return_pkcs);
248 silc_pkcs_public_key_set(*return_pkcs, *return_public_key);
249 silc_pkcs_private_key_set(*return_pkcs, *return_private_key);
255 /* Dump public key into stdout */
257 bool silc_show_public_key(const char *pub_filename)
259 SilcPublicKey public_key;
260 SilcPublicKeyIdentifier ident;
261 char *fingerprint, *babbleprint;
265 SilcUInt32 key_len = 0;
267 if (silc_pkcs_load_public_key((char *)pub_filename, &public_key,
268 SILC_PKCS_FILE_PEM) == FALSE)
269 if (silc_pkcs_load_public_key((char *)pub_filename, &public_key,
270 SILC_PKCS_FILE_BIN) == FALSE) {
271 fprintf(stderr, "Could not load public key file `%s'\n", pub_filename);
275 ident = silc_pkcs_decode_identifier(public_key->identifier);
277 pk = silc_pkcs_public_key_encode(public_key, &pk_len);
278 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
279 babbleprint = silc_hash_babbleprint(NULL, pk, pk_len);
281 if (silc_pkcs_alloc(public_key->name, &pkcs)) {
282 key_len = silc_pkcs_public_key_set(pkcs, public_key);
283 silc_pkcs_free(pkcs);
286 printf("Public key file : %s\n", pub_filename);
287 printf("Algorithm : %s\n", public_key->name);
289 printf("Key length (bits) : %d\n", (unsigned int)key_len);
291 printf("Real name : %s\n", ident->realname);
293 printf("Username : %s\n", ident->username);
295 printf("Hostname : %s\n", ident->host);
297 printf("Email : %s\n", ident->email);
299 printf("Organization : %s\n", ident->org);
301 printf("Country : %s\n", ident->country);
302 printf("Fingerprint (SHA1) : %s\n", fingerprint);
303 printf("Babbleprint (SHA1) : %s\n", babbleprint);
307 silc_free(fingerprint);
308 silc_free(babbleprint);
310 silc_pkcs_public_key_free(public_key);
311 silc_pkcs_free_identifier(ident);