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Commit | Line | Data |
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8efc0c15 | 1 | /* |
5260325f | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
3 | * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
4 | * All rights reserved | |
5260325f | 5 | * Identity and host key generation and maintenance. |
bcbf86ec | 6 | * |
7 | * As far as I am concerned, the code I have written for this software | |
8 | * can be used freely for any purpose. Any derived versions of this | |
9 | * software must be clearly marked as such, and if the derived work is | |
10 | * incompatible with the protocol description in the RFC file, it must be | |
11 | * called by a name other than "ssh" or "Secure Shell". | |
5260325f | 12 | */ |
8efc0c15 | 13 | |
14 | #include "includes.h" | |
20eea1d7 | 15 | RCSID("$OpenBSD: ssh-keygen.c,v 1.115 2004/05/09 00:06:47 djm Exp $"); |
8efc0c15 | 16 | |
a306f2dd | 17 | #include <openssl/evp.h> |
18 | #include <openssl/pem.h> | |
a306f2dd | 19 | |
8efc0c15 | 20 | #include "xmalloc.h" |
a306f2dd | 21 | #include "key.h" |
457fc0c6 | 22 | #include "rsa.h" |
a306f2dd | 23 | #include "authfile.h" |
24 | #include "uuencode.h" | |
94ec8c6b | 25 | #include "buffer.h" |
26 | #include "bufaux.h" | |
42f11eb2 | 27 | #include "pathnames.h" |
28 | #include "log.h" | |
58ae9cb8 | 29 | #include "misc.h" |
94ec8c6b | 30 | |
93a56445 | 31 | #ifdef SMARTCARD |
93a56445 | 32 | #include "scard.h" |
dd2495cb | 33 | #endif |
02159d9b | 34 | #include "dns.h" |
2b30154a | 35 | |
a306f2dd | 36 | /* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
8efc0c15 | 37 | int bits = 1024; |
38 | ||
aa3378df | 39 | /* |
40 | * Flag indicating that we just want to change the passphrase. This can be | |
41 | * set on the command line. | |
42 | */ | |
8efc0c15 | 43 | int change_passphrase = 0; |
44 | ||
aa3378df | 45 | /* |
46 | * Flag indicating that we just want to change the comment. This can be set | |
47 | * on the command line. | |
48 | */ | |
8efc0c15 | 49 | int change_comment = 0; |
50 | ||
51 | int quiet = 0; | |
52 | ||
f095fcc7 | 53 | /* Flag indicating that we just want to see the key fingerprint */ |
54 | int print_fingerprint = 0; | |
aaf45d87 | 55 | int print_bubblebabble = 0; |
f095fcc7 | 56 | |
5ad13cd7 | 57 | /* The identity file name, given on the command line or entered by the user. */ |
58 | char identity_file[1024]; | |
59 | int have_identity = 0; | |
8efc0c15 | 60 | |
61 | /* This is set to the passphrase if given on the command line. */ | |
62 | char *identity_passphrase = NULL; | |
63 | ||
64 | /* This is set to the new passphrase if given on the command line. */ | |
65 | char *identity_new_passphrase = NULL; | |
66 | ||
67 | /* This is set to the new comment if given on the command line. */ | |
68 | char *identity_comment = NULL; | |
69 | ||
a306f2dd | 70 | /* Dump public key file in format used by real and the original SSH 2 */ |
71 | int convert_to_ssh2 = 0; | |
72 | int convert_from_ssh2 = 0; | |
73 | int print_public = 0; | |
21289cd0 | 74 | int print_generic = 0; |
fa08c86b | 75 | |
3dc93cd8 | 76 | char *key_type_name = NULL; |
a306f2dd | 77 | |
5ad13cd7 | 78 | /* argv0 */ |
5260325f | 79 | #ifdef HAVE___PROGNAME |
5ad13cd7 | 80 | extern char *__progname; |
260d427b | 81 | #else |
82 | char *__progname; | |
83 | #endif | |
8efc0c15 | 84 | |
a306f2dd | 85 | char hostname[MAXHOSTNAMELEN]; |
86 | ||
20eea1d7 | 87 | /* moduli.c */ |
88 | int gen_candidates(FILE *, int, int, BIGNUM *); | |
89 | int prime_test(FILE *, FILE *, u_int32_t, u_int32_t); | |
90 | ||
396c147e | 91 | static void |
5ad13cd7 | 92 | ask_filename(struct passwd *pw, const char *prompt) |
8efc0c15 | 93 | { |
5260325f | 94 | char buf[1024]; |
c523303b | 95 | char *name = NULL; |
96 | ||
8d22d775 | 97 | if (key_type_name == NULL) |
42f11eb2 | 98 | name = _PATH_SSH_CLIENT_ID_RSA; |
8d22d775 | 99 | else |
100 | switch (key_type_from_name(key_type_name)) { | |
101 | case KEY_RSA1: | |
102 | name = _PATH_SSH_CLIENT_IDENTITY; | |
103 | break; | |
104 | case KEY_DSA: | |
105 | name = _PATH_SSH_CLIENT_ID_DSA; | |
106 | break; | |
107 | case KEY_RSA: | |
108 | name = _PATH_SSH_CLIENT_ID_RSA; | |
109 | break; | |
110 | default: | |
111 | fprintf(stderr, "bad key type"); | |
112 | exit(1); | |
113 | break; | |
114 | } | |
115 | ||
c523303b | 116 | snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name); |
8d88011e | 117 | fprintf(stderr, "%s (%s): ", prompt, identity_file); |
5260325f | 118 | if (fgets(buf, sizeof(buf), stdin) == NULL) |
119 | exit(1); | |
120 | if (strchr(buf, '\n')) | |
121 | *strchr(buf, '\n') = 0; | |
122 | if (strcmp(buf, "") != 0) | |
123 | strlcpy(identity_file, buf, sizeof(identity_file)); | |
124 | have_identity = 1; | |
f095fcc7 | 125 | } |
8efc0c15 | 126 | |
396c147e | 127 | static Key * |
abe0fb9f | 128 | load_identity(char *filename) |
a306f2dd | 129 | { |
aeaa3d9e | 130 | char *pass; |
131 | Key *prv; | |
132 | ||
cd332296 | 133 | prv = key_load_private(filename, "", NULL); |
aeaa3d9e | 134 | if (prv == NULL) { |
abe0fb9f | 135 | if (identity_passphrase) |
136 | pass = xstrdup(identity_passphrase); | |
137 | else | |
1843a425 | 138 | pass = read_passphrase("Enter passphrase: ", |
139 | RP_ALLOW_STDIN); | |
aeaa3d9e | 140 | prv = key_load_private(filename, pass, NULL); |
a306f2dd | 141 | memset(pass, 0, strlen(pass)); |
142 | xfree(pass); | |
143 | } | |
aeaa3d9e | 144 | return prv; |
a306f2dd | 145 | } |
146 | ||
94ec8c6b | 147 | #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
7203d6bb | 148 | #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
94ec8c6b | 149 | #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
2b87da3b | 150 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
a306f2dd | 151 | |
396c147e | 152 | static void |
a306f2dd | 153 | do_convert_to_ssh2(struct passwd *pw) |
154 | { | |
b587c165 | 155 | Key *k; |
21b30f38 | 156 | u_int len; |
1e3b8b07 | 157 | u_char *blob; |
a306f2dd | 158 | struct stat st; |
159 | ||
160 | if (!have_identity) | |
161 | ask_filename(pw, "Enter file in which the key is"); | |
162 | if (stat(identity_file, &st) < 0) { | |
163 | perror(identity_file); | |
164 | exit(1); | |
165 | } | |
b587c165 | 166 | if ((k = key_load_public(identity_file, NULL)) == NULL) { |
abe0fb9f | 167 | if ((k = load_identity(identity_file)) == NULL) { |
b587c165 | 168 | fprintf(stderr, "load failed\n"); |
169 | exit(1); | |
170 | } | |
a306f2dd | 171 | } |
3566c73c | 172 | if (k->type == KEY_RSA1) { |
173 | fprintf(stderr, "version 1 keys are not supported\n"); | |
174 | exit(1); | |
175 | } | |
f7436b8c | 176 | if (key_to_blob(k, &blob, &len) <= 0) { |
177 | fprintf(stderr, "key_to_blob failed\n"); | |
178 | exit(1); | |
179 | } | |
94ec8c6b | 180 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
a306f2dd | 181 | fprintf(stdout, |
512df038 | 182 | "Comment: \"%u-bit %s, converted from OpenSSH by %s@%s\"\n", |
b587c165 | 183 | key_size(k), key_type(k), |
a306f2dd | 184 | pw->pw_name, hostname); |
185 | dump_base64(stdout, blob, len); | |
94ec8c6b | 186 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
b587c165 | 187 | key_free(k); |
a306f2dd | 188 | xfree(blob); |
189 | exit(0); | |
190 | } | |
191 | ||
396c147e | 192 | static void |
94ec8c6b | 193 | buffer_get_bignum_bits(Buffer *b, BIGNUM *value) |
194 | { | |
bb92e5cc | 195 | u_int bits = buffer_get_int(b); |
196 | u_int bytes = (bits + 7) / 8; | |
457fc0c6 | 197 | |
94ec8c6b | 198 | if (buffer_len(b) < bytes) |
457fc0c6 | 199 | fatal("buffer_get_bignum_bits: input buffer too small: " |
200 | "need %d have %d", bytes, buffer_len(b)); | |
20905a8e | 201 | BN_bin2bn(buffer_ptr(b), bytes, value); |
94ec8c6b | 202 | buffer_consume(b, bytes); |
203 | } | |
204 | ||
396c147e | 205 | static Key * |
c66f9d0e | 206 | do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
94ec8c6b | 207 | { |
208 | Buffer b; | |
94ec8c6b | 209 | Key *key = NULL; |
a599bd06 | 210 | char *type, *cipher; |
d3260e12 | 211 | u_char *sig, data[] = "abcde12345"; |
2e0becb6 | 212 | int magic, rlen, ktype, i1, i2, i3, i4; |
a599bd06 | 213 | u_int slen; |
2e0becb6 | 214 | u_long e; |
94ec8c6b | 215 | |
216 | buffer_init(&b); | |
217 | buffer_append(&b, blob, blen); | |
218 | ||
219 | magic = buffer_get_int(&b); | |
220 | if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { | |
221 | error("bad magic 0x%x != 0x%x", magic, SSH_COM_PRIVATE_KEY_MAGIC); | |
222 | buffer_free(&b); | |
223 | return NULL; | |
224 | } | |
2e0becb6 | 225 | i1 = buffer_get_int(&b); |
94ec8c6b | 226 | type = buffer_get_string(&b, NULL); |
227 | cipher = buffer_get_string(&b, NULL); | |
2e0becb6 | 228 | i2 = buffer_get_int(&b); |
229 | i3 = buffer_get_int(&b); | |
230 | i4 = buffer_get_int(&b); | |
231 | debug("ignore (%d %d %d %d)", i1,i2,i3,i4); | |
94ec8c6b | 232 | if (strcmp(cipher, "none") != 0) { |
233 | error("unsupported cipher %s", cipher); | |
234 | xfree(cipher); | |
235 | buffer_free(&b); | |
457fc0c6 | 236 | xfree(type); |
94ec8c6b | 237 | return NULL; |
238 | } | |
239 | xfree(cipher); | |
240 | ||
457fc0c6 | 241 | if (strstr(type, "dsa")) { |
242 | ktype = KEY_DSA; | |
243 | } else if (strstr(type, "rsa")) { | |
244 | ktype = KEY_RSA; | |
245 | } else { | |
246 | xfree(type); | |
94ec8c6b | 247 | return NULL; |
248 | } | |
457fc0c6 | 249 | key = key_new_private(ktype); |
250 | xfree(type); | |
251 | ||
252 | switch (key->type) { | |
253 | case KEY_DSA: | |
254 | buffer_get_bignum_bits(&b, key->dsa->p); | |
255 | buffer_get_bignum_bits(&b, key->dsa->g); | |
256 | buffer_get_bignum_bits(&b, key->dsa->q); | |
257 | buffer_get_bignum_bits(&b, key->dsa->pub_key); | |
258 | buffer_get_bignum_bits(&b, key->dsa->priv_key); | |
259 | break; | |
260 | case KEY_RSA: | |
2e0becb6 | 261 | e = buffer_get_char(&b); |
262 | debug("e %lx", e); | |
263 | if (e < 30) { | |
264 | e <<= 8; | |
265 | e += buffer_get_char(&b); | |
266 | debug("e %lx", e); | |
267 | e <<= 8; | |
268 | e += buffer_get_char(&b); | |
269 | debug("e %lx", e); | |
270 | } | |
271 | if (!BN_set_word(key->rsa->e, e)) { | |
457fc0c6 | 272 | buffer_free(&b); |
273 | key_free(key); | |
274 | return NULL; | |
275 | } | |
276 | buffer_get_bignum_bits(&b, key->rsa->d); | |
277 | buffer_get_bignum_bits(&b, key->rsa->n); | |
278 | buffer_get_bignum_bits(&b, key->rsa->iqmp); | |
279 | buffer_get_bignum_bits(&b, key->rsa->q); | |
280 | buffer_get_bignum_bits(&b, key->rsa->p); | |
2b63e803 | 281 | rsa_generate_additional_parameters(key->rsa); |
457fc0c6 | 282 | break; |
283 | } | |
94ec8c6b | 284 | rlen = buffer_len(&b); |
6aacefa7 | 285 | if (rlen != 0) |
457fc0c6 | 286 | error("do_convert_private_ssh2_from_blob: " |
287 | "remaining bytes in key blob %d", rlen); | |
94ec8c6b | 288 | buffer_free(&b); |
a599bd06 | 289 | |
290 | /* try the key */ | |
291 | key_sign(key, &sig, &slen, data, sizeof(data)); | |
292 | key_verify(key, sig, slen, data, sizeof(data)); | |
293 | xfree(sig); | |
94ec8c6b | 294 | return key; |
295 | } | |
296 | ||
396c147e | 297 | static void |
a306f2dd | 298 | do_convert_from_ssh2(struct passwd *pw) |
299 | { | |
300 | Key *k; | |
301 | int blen; | |
783dbbdc | 302 | u_int len; |
a306f2dd | 303 | char line[1024], *p; |
cf54363d | 304 | u_char blob[8096]; |
a306f2dd | 305 | char encoded[8096]; |
306 | struct stat st; | |
94ec8c6b | 307 | int escaped = 0, private = 0, ok; |
a306f2dd | 308 | FILE *fp; |
309 | ||
310 | if (!have_identity) | |
311 | ask_filename(pw, "Enter file in which the key is"); | |
312 | if (stat(identity_file, &st) < 0) { | |
313 | perror(identity_file); | |
314 | exit(1); | |
315 | } | |
316 | fp = fopen(identity_file, "r"); | |
317 | if (fp == NULL) { | |
318 | perror(identity_file); | |
319 | exit(1); | |
320 | } | |
321 | encoded[0] = '\0'; | |
322 | while (fgets(line, sizeof(line), fp)) { | |
d0c832f3 | 323 | if (!(p = strchr(line, '\n'))) { |
324 | fprintf(stderr, "input line too long.\n"); | |
325 | exit(1); | |
326 | } | |
327 | if (p > line && p[-1] == '\\') | |
328 | escaped++; | |
a306f2dd | 329 | if (strncmp(line, "----", 4) == 0 || |
330 | strstr(line, ": ") != NULL) { | |
94ec8c6b | 331 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
332 | private = 1; | |
a599bd06 | 333 | if (strstr(line, " END ") != NULL) { |
334 | break; | |
335 | } | |
012bc0e1 | 336 | /* fprintf(stderr, "ignore: %s", line); */ |
a306f2dd | 337 | continue; |
338 | } | |
d0c832f3 | 339 | if (escaped) { |
340 | escaped--; | |
012bc0e1 | 341 | /* fprintf(stderr, "escaped: %s", line); */ |
d0c832f3 | 342 | continue; |
a306f2dd | 343 | } |
344 | *p = '\0'; | |
345 | strlcat(encoded, line, sizeof(encoded)); | |
346 | } | |
783dbbdc | 347 | len = strlen(encoded); |
348 | if (((len % 4) == 3) && | |
349 | (encoded[len-1] == '=') && | |
350 | (encoded[len-2] == '=') && | |
351 | (encoded[len-3] == '=')) | |
352 | encoded[len-3] = '\0'; | |
e6207598 | 353 | blen = uudecode(encoded, blob, sizeof(blob)); |
a306f2dd | 354 | if (blen < 0) { |
355 | fprintf(stderr, "uudecode failed.\n"); | |
356 | exit(1); | |
357 | } | |
94ec8c6b | 358 | k = private ? |
359 | do_convert_private_ssh2_from_blob(blob, blen) : | |
fa08c86b | 360 | key_from_blob(blob, blen); |
94ec8c6b | 361 | if (k == NULL) { |
362 | fprintf(stderr, "decode blob failed.\n"); | |
363 | exit(1); | |
364 | } | |
365 | ok = private ? | |
457fc0c6 | 366 | (k->type == KEY_DSA ? |
367 | PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, NULL, 0, NULL, NULL) : | |
368 | PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, NULL, 0, NULL, NULL)) : | |
94ec8c6b | 369 | key_write(k, stdout); |
370 | if (!ok) { | |
371 | fprintf(stderr, "key write failed"); | |
372 | exit(1); | |
373 | } | |
a306f2dd | 374 | key_free(k); |
4ccb828d | 375 | if (!private) |
376 | fprintf(stdout, "\n"); | |
a306f2dd | 377 | fclose(fp); |
378 | exit(0); | |
379 | } | |
380 | ||
396c147e | 381 | static void |
a306f2dd | 382 | do_print_public(struct passwd *pw) |
383 | { | |
aeaa3d9e | 384 | Key *prv; |
a306f2dd | 385 | struct stat st; |
386 | ||
387 | if (!have_identity) | |
388 | ask_filename(pw, "Enter file in which the key is"); | |
389 | if (stat(identity_file, &st) < 0) { | |
390 | perror(identity_file); | |
391 | exit(1); | |
392 | } | |
abe0fb9f | 393 | prv = load_identity(identity_file); |
aeaa3d9e | 394 | if (prv == NULL) { |
a306f2dd | 395 | fprintf(stderr, "load failed\n"); |
396 | exit(1); | |
397 | } | |
aeaa3d9e | 398 | if (!key_write(prv, stdout)) |
a306f2dd | 399 | fprintf(stderr, "key_write failed"); |
aeaa3d9e | 400 | key_free(prv); |
a306f2dd | 401 | fprintf(stdout, "\n"); |
402 | exit(0); | |
403 | } | |
404 | ||
4f831fd7 | 405 | #ifdef SMARTCARD |
2b30154a | 406 | static void |
93a56445 | 407 | do_upload(struct passwd *pw, const char *sc_reader_id) |
2b30154a | 408 | { |
2b30154a | 409 | Key *prv = NULL; |
410 | struct stat st; | |
b9f62352 | 411 | int ret; |
412 | ||
2b30154a | 413 | if (!have_identity) |
414 | ask_filename(pw, "Enter file in which the key is"); | |
415 | if (stat(identity_file, &st) < 0) { | |
416 | perror(identity_file); | |
b9f62352 | 417 | exit(1); |
2b30154a | 418 | } |
419 | prv = load_identity(identity_file); | |
420 | if (prv == NULL) { | |
421 | error("load failed"); | |
b9f62352 | 422 | exit(1); |
49ccba9c | 423 | } |
b9f62352 | 424 | ret = sc_put_key(prv, sc_reader_id); |
425 | key_free(prv); | |
426 | if (ret < 0) | |
427 | exit(1); | |
bbe88b6d | 428 | logit("loading key done"); |
b9f62352 | 429 | exit(0); |
2b30154a | 430 | } |
93a56445 | 431 | |
432 | static void | |
433 | do_download(struct passwd *pw, const char *sc_reader_id) | |
434 | { | |
0659cace | 435 | Key **keys = NULL; |
436 | int i; | |
93a56445 | 437 | |
0659cace | 438 | keys = sc_get_keys(sc_reader_id, NULL); |
439 | if (keys == NULL) | |
93a56445 | 440 | fatal("cannot read public key from smartcard"); |
0659cace | 441 | for (i = 0; keys[i]; i++) { |
442 | key_write(keys[i], stdout); | |
443 | key_free(keys[i]); | |
444 | fprintf(stdout, "\n"); | |
445 | } | |
446 | xfree(keys); | |
93a56445 | 447 | exit(0); |
448 | } | |
3e984472 | 449 | #endif /* SMARTCARD */ |
2b30154a | 450 | |
396c147e | 451 | static void |
f095fcc7 | 452 | do_fingerprint(struct passwd *pw) |
453 | { | |
c8d54615 | 454 | FILE *f; |
a306f2dd | 455 | Key *public; |
aaf45d87 | 456 | char *comment = NULL, *cp, *ep, line[16*1024], *fp; |
17a3011c | 457 | int i, skip = 0, num = 1, invalid = 1; |
458 | enum fp_rep rep; | |
459 | enum fp_type fptype; | |
5260325f | 460 | struct stat st; |
461 | ||
aeaa3d9e | 462 | fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; |
463 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; | |
aaf45d87 | 464 | |
5260325f | 465 | if (!have_identity) |
466 | ask_filename(pw, "Enter file in which the key is"); | |
467 | if (stat(identity_file, &st) < 0) { | |
468 | perror(identity_file); | |
469 | exit(1); | |
470 | } | |
aeaa3d9e | 471 | public = key_load_public(identity_file, &comment); |
472 | if (public != NULL) { | |
473 | fp = key_fingerprint(public, fptype, rep); | |
512df038 | 474 | printf("%u %s %s\n", key_size(public), fp, comment); |
a306f2dd | 475 | key_free(public); |
fa08c86b | 476 | xfree(comment); |
aaf45d87 | 477 | xfree(fp); |
c8d54615 | 478 | exit(0); |
479 | } | |
aeaa3d9e | 480 | if (comment) |
481 | xfree(comment); | |
c8d54615 | 482 | |
483 | f = fopen(identity_file, "r"); | |
484 | if (f != NULL) { | |
c8d54615 | 485 | while (fgets(line, sizeof(line), f)) { |
486 | i = strlen(line) - 1; | |
487 | if (line[i] != '\n') { | |
488 | error("line %d too long: %.40s...", num, line); | |
489 | skip = 1; | |
490 | continue; | |
491 | } | |
492 | num++; | |
493 | if (skip) { | |
494 | skip = 0; | |
495 | continue; | |
496 | } | |
497 | line[i] = '\0'; | |
498 | ||
499 | /* Skip leading whitespace, empty and comment lines. */ | |
500 | for (cp = line; *cp == ' ' || *cp == '\t'; cp++) | |
501 | ; | |
502 | if (!*cp || *cp == '\n' || *cp == '#') | |
503 | continue ; | |
504 | i = strtol(cp, &ep, 10); | |
505 | if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) { | |
506 | int quoted = 0; | |
507 | comment = cp; | |
512df038 | 508 | for (; *cp && (quoted || (*cp != ' ' && |
509 | *cp != '\t')); cp++) { | |
c8d54615 | 510 | if (*cp == '\\' && cp[1] == '"') |
511 | cp++; /* Skip both */ | |
512 | else if (*cp == '"') | |
513 | quoted = !quoted; | |
514 | } | |
515 | if (!*cp) | |
516 | continue; | |
517 | *cp++ = '\0'; | |
518 | } | |
519 | ep = cp; | |
efcae5b1 | 520 | public = key_new(KEY_RSA1); |
521 | if (key_read(public, &cp) != 1) { | |
522 | cp = ep; | |
523 | key_free(public); | |
524 | public = key_new(KEY_UNSPEC); | |
525 | if (key_read(public, &cp) != 1) { | |
526 | key_free(public); | |
527 | continue; | |
528 | } | |
5260325f | 529 | } |
efcae5b1 | 530 | comment = *cp ? cp : comment; |
aeaa3d9e | 531 | fp = key_fingerprint(public, fptype, rep); |
512df038 | 532 | printf("%u %s %s\n", key_size(public), fp, |
efcae5b1 | 533 | comment ? comment : "no comment"); |
aaf45d87 | 534 | xfree(fp); |
aeaa3d9e | 535 | key_free(public); |
efcae5b1 | 536 | invalid = 0; |
5260325f | 537 | } |
c8d54615 | 538 | fclose(f); |
539 | } | |
540 | if (invalid) { | |
f564d016 | 541 | printf("%s is not a public key file.\n", identity_file); |
c8d54615 | 542 | exit(1); |
5260325f | 543 | } |
5260325f | 544 | exit(0); |
f095fcc7 | 545 | } |
546 | ||
5260325f | 547 | /* |
548 | * Perform changing a passphrase. The argument is the passwd structure | |
549 | * for the current user. | |
550 | */ | |
396c147e | 551 | static void |
f095fcc7 | 552 | do_change_passphrase(struct passwd *pw) |
553 | { | |
5260325f | 554 | char *comment; |
555 | char *old_passphrase, *passphrase1, *passphrase2; | |
556 | struct stat st; | |
a306f2dd | 557 | Key *private; |
5260325f | 558 | |
559 | if (!have_identity) | |
560 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 561 | if (stat(identity_file, &st) < 0) { |
562 | perror(identity_file); | |
563 | exit(1); | |
564 | } | |
5260325f | 565 | /* Try to load the file with empty passphrase. */ |
aeaa3d9e | 566 | private = key_load_private(identity_file, "", &comment); |
567 | if (private == NULL) { | |
5260325f | 568 | if (identity_passphrase) |
569 | old_passphrase = xstrdup(identity_passphrase); | |
570 | else | |
1843a425 | 571 | old_passphrase = |
572 | read_passphrase("Enter old passphrase: ", | |
573 | RP_ALLOW_STDIN); | |
574 | private = key_load_private(identity_file, old_passphrase, | |
575 | &comment); | |
aeaa3d9e | 576 | memset(old_passphrase, 0, strlen(old_passphrase)); |
577 | xfree(old_passphrase); | |
578 | if (private == NULL) { | |
5260325f | 579 | printf("Bad passphrase.\n"); |
580 | exit(1); | |
581 | } | |
5260325f | 582 | } |
583 | printf("Key has comment '%s'\n", comment); | |
584 | ||
585 | /* Ask the new passphrase (twice). */ | |
586 | if (identity_new_passphrase) { | |
587 | passphrase1 = xstrdup(identity_new_passphrase); | |
588 | passphrase2 = NULL; | |
589 | } else { | |
590 | passphrase1 = | |
1843a425 | 591 | read_passphrase("Enter new passphrase (empty for no " |
592 | "passphrase): ", RP_ALLOW_STDIN); | |
593 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
184eed6a | 594 | RP_ALLOW_STDIN); |
5260325f | 595 | |
596 | /* Verify that they are the same. */ | |
597 | if (strcmp(passphrase1, passphrase2) != 0) { | |
598 | memset(passphrase1, 0, strlen(passphrase1)); | |
599 | memset(passphrase2, 0, strlen(passphrase2)); | |
600 | xfree(passphrase1); | |
601 | xfree(passphrase2); | |
602 | printf("Pass phrases do not match. Try again.\n"); | |
603 | exit(1); | |
604 | } | |
605 | /* Destroy the other copy. */ | |
606 | memset(passphrase2, 0, strlen(passphrase2)); | |
607 | xfree(passphrase2); | |
8efc0c15 | 608 | } |
8efc0c15 | 609 | |
5260325f | 610 | /* Save the file using the new passphrase. */ |
aeaa3d9e | 611 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 612 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 613 | memset(passphrase1, 0, strlen(passphrase1)); |
614 | xfree(passphrase1); | |
a306f2dd | 615 | key_free(private); |
5260325f | 616 | xfree(comment); |
617 | exit(1); | |
618 | } | |
619 | /* Destroy the passphrase and the copy of the key in memory. */ | |
620 | memset(passphrase1, 0, strlen(passphrase1)); | |
621 | xfree(passphrase1); | |
a306f2dd | 622 | key_free(private); /* Destroys contents */ |
5260325f | 623 | xfree(comment); |
624 | ||
625 | printf("Your identification has been saved with the new passphrase.\n"); | |
626 | exit(0); | |
627 | } | |
8efc0c15 | 628 | |
21289cd0 | 629 | /* |
630 | * Print the SSHFP RR. | |
631 | */ | |
632 | static void | |
633 | do_print_resource_record(struct passwd *pw, char *hostname) | |
634 | { | |
635 | Key *public; | |
636 | char *comment = NULL; | |
637 | struct stat st; | |
638 | ||
639 | if (!have_identity) | |
640 | ask_filename(pw, "Enter file in which the key is"); | |
641 | if (stat(identity_file, &st) < 0) { | |
642 | perror(identity_file); | |
643 | exit(1); | |
644 | } | |
645 | public = key_load_public(identity_file, &comment); | |
646 | if (public != NULL) { | |
647 | export_dns_rr(hostname, public, stdout, print_generic); | |
648 | key_free(public); | |
649 | xfree(comment); | |
650 | exit(0); | |
651 | } | |
652 | if (comment) | |
653 | xfree(comment); | |
654 | ||
655 | printf("failed to read v2 public key from %s.\n", identity_file); | |
656 | exit(1); | |
657 | } | |
21289cd0 | 658 | |
5260325f | 659 | /* |
660 | * Change the comment of a private key file. | |
661 | */ | |
396c147e | 662 | static void |
8efc0c15 | 663 | do_change_comment(struct passwd *pw) |
664 | { | |
1c9a907f | 665 | char new_comment[1024], *comment, *passphrase; |
aeaa3d9e | 666 | Key *private; |
667 | Key *public; | |
5260325f | 668 | struct stat st; |
669 | FILE *f; | |
1c9a907f | 670 | int fd; |
5260325f | 671 | |
672 | if (!have_identity) | |
673 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 674 | if (stat(identity_file, &st) < 0) { |
675 | perror(identity_file); | |
676 | exit(1); | |
677 | } | |
aeaa3d9e | 678 | private = key_load_private(identity_file, "", &comment); |
679 | if (private == NULL) { | |
5260325f | 680 | if (identity_passphrase) |
681 | passphrase = xstrdup(identity_passphrase); | |
682 | else if (identity_new_passphrase) | |
683 | passphrase = xstrdup(identity_new_passphrase); | |
684 | else | |
1843a425 | 685 | passphrase = read_passphrase("Enter passphrase: ", |
686 | RP_ALLOW_STDIN); | |
5260325f | 687 | /* Try to load using the passphrase. */ |
aeaa3d9e | 688 | private = key_load_private(identity_file, passphrase, &comment); |
689 | if (private == NULL) { | |
5260325f | 690 | memset(passphrase, 0, strlen(passphrase)); |
691 | xfree(passphrase); | |
692 | printf("Bad passphrase.\n"); | |
693 | exit(1); | |
694 | } | |
aeaa3d9e | 695 | } else { |
696 | passphrase = xstrdup(""); | |
5260325f | 697 | } |
aeaa3d9e | 698 | if (private->type != KEY_RSA1) { |
699 | fprintf(stderr, "Comments are only supported for RSA1 keys.\n"); | |
700 | key_free(private); | |
701 | exit(1); | |
184eed6a | 702 | } |
5260325f | 703 | printf("Key now has comment '%s'\n", comment); |
704 | ||
705 | if (identity_comment) { | |
706 | strlcpy(new_comment, identity_comment, sizeof(new_comment)); | |
707 | } else { | |
708 | printf("Enter new comment: "); | |
709 | fflush(stdout); | |
710 | if (!fgets(new_comment, sizeof(new_comment), stdin)) { | |
711 | memset(passphrase, 0, strlen(passphrase)); | |
a306f2dd | 712 | key_free(private); |
5260325f | 713 | exit(1); |
714 | } | |
5260325f | 715 | if (strchr(new_comment, '\n')) |
716 | *strchr(new_comment, '\n') = 0; | |
717 | } | |
718 | ||
719 | /* Save the file using the new passphrase. */ | |
aeaa3d9e | 720 | if (!key_save_private(private, identity_file, passphrase, new_comment)) { |
58cfa257 | 721 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 722 | memset(passphrase, 0, strlen(passphrase)); |
723 | xfree(passphrase); | |
a306f2dd | 724 | key_free(private); |
5260325f | 725 | xfree(comment); |
726 | exit(1); | |
8efc0c15 | 727 | } |
5260325f | 728 | memset(passphrase, 0, strlen(passphrase)); |
729 | xfree(passphrase); | |
aeaa3d9e | 730 | public = key_from_private(private); |
a306f2dd | 731 | key_free(private); |
5260325f | 732 | |
5260325f | 733 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 734 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
735 | if (fd == -1) { | |
5260325f | 736 | printf("Could not save your public key in %s\n", identity_file); |
737 | exit(1); | |
738 | } | |
1c9a907f | 739 | f = fdopen(fd, "w"); |
740 | if (f == NULL) { | |
741 | printf("fdopen %s failed", identity_file); | |
742 | exit(1); | |
743 | } | |
a306f2dd | 744 | if (!key_write(public, f)) |
745 | fprintf(stderr, "write key failed"); | |
746 | key_free(public); | |
747 | fprintf(f, " %s\n", new_comment); | |
5260325f | 748 | fclose(f); |
749 | ||
750 | xfree(comment); | |
751 | ||
752 | printf("The comment in your key file has been changed.\n"); | |
753 | exit(0); | |
8efc0c15 | 754 | } |
755 | ||
396c147e | 756 | static void |
5ad13cd7 | 757 | usage(void) |
758 | { | |
58153e34 | 759 | fprintf(stderr, "Usage: %s [options]\n", __progname); |
760 | fprintf(stderr, "Options:\n"); | |
761 | fprintf(stderr, " -b bits Number of bits in the key to create.\n"); | |
762 | fprintf(stderr, " -c Change comment in private and public key files.\n"); | |
763 | fprintf(stderr, " -e Convert OpenSSH to IETF SECSH key file.\n"); | |
764 | fprintf(stderr, " -f filename Filename of the key file.\n"); | |
21289cd0 | 765 | fprintf(stderr, " -g Use generic DNS resource record format.\n"); |
58153e34 | 766 | fprintf(stderr, " -i Convert IETF SECSH to OpenSSH key file.\n"); |
767 | fprintf(stderr, " -l Show fingerprint of key file.\n"); | |
768 | fprintf(stderr, " -p Change passphrase of private key file.\n"); | |
769 | fprintf(stderr, " -q Quiet.\n"); | |
770 | fprintf(stderr, " -y Read private key file and print public key.\n"); | |
771 | fprintf(stderr, " -t type Specify type of key to create.\n"); | |
772 | fprintf(stderr, " -B Show bubblebabble digest of key file.\n"); | |
773 | fprintf(stderr, " -C comment Provide new comment.\n"); | |
774 | fprintf(stderr, " -N phrase Provide new passphrase.\n"); | |
775 | fprintf(stderr, " -P phrase Provide old passphrase.\n"); | |
21289cd0 | 776 | fprintf(stderr, " -r hostname Print DNS resource record.\n"); |
58153e34 | 777 | #ifdef SMARTCARD |
778 | fprintf(stderr, " -D reader Download public key from smartcard.\n"); | |
779 | fprintf(stderr, " -U reader Upload private key to smartcard.\n"); | |
780 | #endif /* SMARTCARD */ | |
781 | ||
c35a6dc5 | 782 | fprintf(stderr, " -G file Generate candidates for DH-GEX moduli\n"); |
783 | fprintf(stderr, " -T file Screen candidates for DH-GEX moduli\n"); | |
784 | ||
5260325f | 785 | exit(1); |
5ad13cd7 | 786 | } |
787 | ||
5260325f | 788 | /* |
789 | * Main program for key management. | |
790 | */ | |
8efc0c15 | 791 | int |
792 | main(int ac, char **av) | |
793 | { | |
3dc93cd8 | 794 | char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2; |
8f52069e | 795 | char out_file[MAXPATHLEN], *reader_id = NULL; |
21289cd0 | 796 | char *resource_record_hostname = NULL; |
1c9a907f | 797 | Key *private, *public; |
5260325f | 798 | struct passwd *pw; |
5260325f | 799 | struct stat st; |
c35a6dc5 | 800 | int opt, type, fd, download = 0, memory = 0; |
801 | int generator_wanted = 0, trials = 100; | |
802 | int do_gen_candidates = 0, do_screen_candidates = 0; | |
c6fbc95a | 803 | int log_level = SYSLOG_LEVEL_INFO; |
c35a6dc5 | 804 | BIGNUM *start = NULL; |
5260325f | 805 | FILE *f; |
fa08c86b | 806 | |
5260325f | 807 | extern int optind; |
808 | extern char *optarg; | |
809 | ||
fda04d7d | 810 | __progname = ssh_get_progname(av[0]); |
264dce47 | 811 | |
fa649821 | 812 | SSLeay_add_all_algorithms(); |
c35a6dc5 | 813 | log_init(av[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
814 | ||
ce88d9df | 815 | init_rng(); |
816 | seed_rng(); | |
a306f2dd | 817 | |
aa3378df | 818 | /* we need this for the home * directory. */ |
5260325f | 819 | pw = getpwuid(getuid()); |
820 | if (!pw) { | |
821 | printf("You don't exist, go away!\n"); | |
822 | exit(1); | |
823 | } | |
a306f2dd | 824 | if (gethostname(hostname, sizeof(hostname)) < 0) { |
825 | perror("gethostname"); | |
826 | exit(1); | |
827 | } | |
aa3378df | 828 | |
c35a6dc5 | 829 | while ((opt = getopt(ac, av, |
c6fbc95a | 830 | "degiqpclBRvxXyb:f:t:U:D:P:N:C:r:g:T:G:M:S:a:W:")) != -1) { |
5260325f | 831 | switch (opt) { |
832 | case 'b': | |
833 | bits = atoi(optarg); | |
834 | if (bits < 512 || bits > 32768) { | |
835 | printf("Bits has bad value.\n"); | |
836 | exit(1); | |
837 | } | |
838 | break; | |
5260325f | 839 | case 'l': |
840 | print_fingerprint = 1; | |
841 | break; | |
aaf45d87 | 842 | case 'B': |
843 | print_bubblebabble = 1; | |
844 | break; | |
5260325f | 845 | case 'p': |
846 | change_passphrase = 1; | |
847 | break; | |
5260325f | 848 | case 'c': |
849 | change_comment = 1; | |
850 | break; | |
5260325f | 851 | case 'f': |
852 | strlcpy(identity_file, optarg, sizeof(identity_file)); | |
853 | have_identity = 1; | |
854 | break; | |
21289cd0 | 855 | case 'g': |
856 | print_generic = 1; | |
857 | break; | |
5260325f | 858 | case 'P': |
859 | identity_passphrase = optarg; | |
860 | break; | |
5260325f | 861 | case 'N': |
862 | identity_new_passphrase = optarg; | |
863 | break; | |
5260325f | 864 | case 'C': |
865 | identity_comment = optarg; | |
866 | break; | |
5260325f | 867 | case 'q': |
868 | quiet = 1; | |
869 | break; | |
a306f2dd | 870 | case 'R': |
fa08c86b | 871 | /* unused */ |
872 | exit(0); | |
a306f2dd | 873 | break; |
5deceabb | 874 | case 'e': |
a306f2dd | 875 | case 'x': |
5deceabb | 876 | /* export key */ |
a306f2dd | 877 | convert_to_ssh2 = 1; |
878 | break; | |
5deceabb | 879 | case 'i': |
a306f2dd | 880 | case 'X': |
5deceabb | 881 | /* import key */ |
a306f2dd | 882 | convert_from_ssh2 = 1; |
883 | break; | |
a306f2dd | 884 | case 'y': |
885 | print_public = 1; | |
886 | break; | |
a306f2dd | 887 | case 'd': |
fa08c86b | 888 | key_type_name = "dsa"; |
a306f2dd | 889 | break; |
fa08c86b | 890 | case 't': |
891 | key_type_name = optarg; | |
fa08c86b | 892 | break; |
93a56445 | 893 | case 'D': |
894 | download = 1; | |
285d2b15 | 895 | case 'U': |
93a56445 | 896 | reader_id = optarg; |
2b30154a | 897 | break; |
c6fbc95a | 898 | case 'v': |
899 | if (log_level == SYSLOG_LEVEL_INFO) | |
900 | log_level = SYSLOG_LEVEL_DEBUG1; | |
901 | else { | |
902 | if (log_level >= SYSLOG_LEVEL_DEBUG1 && | |
903 | log_level < SYSLOG_LEVEL_DEBUG3) | |
904 | log_level++; | |
905 | } | |
906 | break; | |
21289cd0 | 907 | case 'r': |
908 | resource_record_hostname = optarg; | |
909 | break; | |
c35a6dc5 | 910 | case 'W': |
911 | generator_wanted = atoi(optarg); | |
912 | if (generator_wanted < 1) | |
913 | fatal("Desired generator has bad value."); | |
914 | break; | |
915 | case 'a': | |
916 | trials = atoi(optarg); | |
c35a6dc5 | 917 | break; |
918 | case 'M': | |
919 | memory = atoi(optarg); | |
c35a6dc5 | 920 | break; |
921 | case 'G': | |
922 | do_gen_candidates = 1; | |
923 | strlcpy(out_file, optarg, sizeof(out_file)); | |
924 | break; | |
925 | case 'T': | |
926 | do_screen_candidates = 1; | |
927 | strlcpy(out_file, optarg, sizeof(out_file)); | |
928 | break; | |
929 | case 'S': | |
930 | /* XXX - also compare length against bits */ | |
931 | if (BN_hex2bn(&start, optarg) == 0) | |
932 | fatal("Invalid start point."); | |
933 | break; | |
5260325f | 934 | case '?': |
935 | default: | |
936 | usage(); | |
937 | } | |
938 | } | |
c6fbc95a | 939 | |
940 | /* reinit */ | |
941 | log_init(av[0], log_level, SYSLOG_FACILITY_USER, 1); | |
942 | ||
5260325f | 943 | if (optind < ac) { |
944 | printf("Too many arguments.\n"); | |
945 | usage(); | |
946 | } | |
947 | if (change_passphrase && change_comment) { | |
948 | printf("Can only have one of -p and -c.\n"); | |
949 | usage(); | |
950 | } | |
aaf45d87 | 951 | if (print_fingerprint || print_bubblebabble) |
5260325f | 952 | do_fingerprint(pw); |
5260325f | 953 | if (change_passphrase) |
954 | do_change_passphrase(pw); | |
633151a3 | 955 | if (change_comment) |
956 | do_change_comment(pw); | |
ce88d9df | 957 | if (convert_to_ssh2) |
958 | do_convert_to_ssh2(pw); | |
959 | if (convert_from_ssh2) | |
960 | do_convert_from_ssh2(pw); | |
a306f2dd | 961 | if (print_public) |
962 | do_print_public(pw); | |
21289cd0 | 963 | if (resource_record_hostname != NULL) { |
21289cd0 | 964 | do_print_resource_record(pw, resource_record_hostname); |
21289cd0 | 965 | } |
93a56445 | 966 | if (reader_id != NULL) { |
4f831fd7 | 967 | #ifdef SMARTCARD |
93a56445 | 968 | if (download) |
969 | do_download(pw, reader_id); | |
970 | else | |
971 | do_upload(pw, reader_id); | |
3e984472 | 972 | #else /* SMARTCARD */ |
4f831fd7 | 973 | fatal("no support for smartcards."); |
3e984472 | 974 | #endif /* SMARTCARD */ |
93a56445 | 975 | } |
5260325f | 976 | |
c35a6dc5 | 977 | if (do_gen_candidates) { |
978 | FILE *out = fopen(out_file, "w"); | |
b6453d99 | 979 | |
c35a6dc5 | 980 | if (out == NULL) { |
981 | error("Couldn't open modulus candidate file \"%s\": %s", | |
982 | out_file, strerror(errno)); | |
983 | return (1); | |
984 | } | |
985 | if (gen_candidates(out, memory, bits, start) != 0) | |
986 | fatal("modulus candidate generation failed\n"); | |
987 | ||
988 | return (0); | |
989 | } | |
990 | ||
991 | if (do_screen_candidates) { | |
992 | FILE *in; | |
993 | FILE *out = fopen(out_file, "w"); | |
994 | ||
995 | if (have_identity && strcmp(identity_file, "-") != 0) { | |
996 | if ((in = fopen(identity_file, "r")) == NULL) { | |
997 | fatal("Couldn't open modulus candidate " | |
aff51935 | 998 | "file \"%s\": %s", identity_file, |
c35a6dc5 | 999 | strerror(errno)); |
1000 | } | |
1001 | } else | |
1002 | in = stdin; | |
1003 | ||
1004 | if (out == NULL) { | |
1005 | fatal("Couldn't open moduli file \"%s\": %s", | |
1006 | out_file, strerror(errno)); | |
1007 | } | |
1008 | if (prime_test(in, out, trials, generator_wanted) != 0) | |
1009 | fatal("modulus screening failed\n"); | |
08d035b6 | 1010 | return (0); |
c35a6dc5 | 1011 | } |
1012 | ||
5260325f | 1013 | arc4random_stir(); |
1014 | ||
bb28e836 | 1015 | if (key_type_name == NULL) { |
1016 | printf("You must specify a key type (-t).\n"); | |
1017 | usage(); | |
1018 | } | |
c523303b | 1019 | type = key_type_from_name(key_type_name); |
1020 | if (type == KEY_UNSPEC) { | |
1021 | fprintf(stderr, "unknown key type %s\n", key_type_name); | |
1022 | exit(1); | |
a306f2dd | 1023 | } |
fa08c86b | 1024 | if (!quiet) |
c523303b | 1025 | printf("Generating public/private %s key pair.\n", key_type_name); |
fa08c86b | 1026 | private = key_generate(type, bits); |
1027 | if (private == NULL) { | |
1028 | fprintf(stderr, "key_generate failed"); | |
1029 | exit(1); | |
1030 | } | |
1031 | public = key_from_private(private); | |
5260325f | 1032 | |
1033 | if (!have_identity) | |
1034 | ask_filename(pw, "Enter file in which to save the key"); | |
1035 | ||
1036 | /* Create ~/.ssh directory if it doesn\'t already exist. */ | |
42f11eb2 | 1037 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR); |
5260325f | 1038 | if (strstr(identity_file, dotsshdir) != NULL && |
1039 | stat(dotsshdir, &st) < 0) { | |
704b1659 | 1040 | if (mkdir(dotsshdir, 0700) < 0) |
5260325f | 1041 | error("Could not create directory '%s'.", dotsshdir); |
1042 | else if (!quiet) | |
1043 | printf("Created directory '%s'.\n", dotsshdir); | |
1044 | } | |
1045 | /* If the file already exists, ask the user to confirm. */ | |
1046 | if (stat(identity_file, &st) >= 0) { | |
1047 | char yesno[3]; | |
1048 | printf("%s already exists.\n", identity_file); | |
1049 | printf("Overwrite (y/n)? "); | |
1050 | fflush(stdout); | |
1051 | if (fgets(yesno, sizeof(yesno), stdin) == NULL) | |
1052 | exit(1); | |
1053 | if (yesno[0] != 'y' && yesno[0] != 'Y') | |
1054 | exit(1); | |
1055 | } | |
1056 | /* Ask for a passphrase (twice). */ | |
1057 | if (identity_passphrase) | |
1058 | passphrase1 = xstrdup(identity_passphrase); | |
1059 | else if (identity_new_passphrase) | |
1060 | passphrase1 = xstrdup(identity_new_passphrase); | |
1061 | else { | |
1062 | passphrase_again: | |
1063 | passphrase1 = | |
1843a425 | 1064 | read_passphrase("Enter passphrase (empty for no " |
1065 | "passphrase): ", RP_ALLOW_STDIN); | |
1066 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
1067 | RP_ALLOW_STDIN); | |
5260325f | 1068 | if (strcmp(passphrase1, passphrase2) != 0) { |
1843a425 | 1069 | /* |
1070 | * The passphrases do not match. Clear them and | |
1071 | * retry. | |
1072 | */ | |
5260325f | 1073 | memset(passphrase1, 0, strlen(passphrase1)); |
1074 | memset(passphrase2, 0, strlen(passphrase2)); | |
1075 | xfree(passphrase1); | |
1076 | xfree(passphrase2); | |
1077 | printf("Passphrases do not match. Try again.\n"); | |
1078 | goto passphrase_again; | |
1079 | } | |
1080 | /* Clear the other copy of the passphrase. */ | |
1081 | memset(passphrase2, 0, strlen(passphrase2)); | |
1082 | xfree(passphrase2); | |
1083 | } | |
1084 | ||
5260325f | 1085 | if (identity_comment) { |
1086 | strlcpy(comment, identity_comment, sizeof(comment)); | |
1087 | } else { | |
6ae2364d | 1088 | /* Create default commend field for the passphrase. */ |
5260325f | 1089 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
1090 | } | |
1091 | ||
1092 | /* Save the key with the given passphrase and comment. */ | |
aeaa3d9e | 1093 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 1094 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 1095 | memset(passphrase1, 0, strlen(passphrase1)); |
1096 | xfree(passphrase1); | |
1097 | exit(1); | |
1098 | } | |
1099 | /* Clear the passphrase. */ | |
1100 | memset(passphrase1, 0, strlen(passphrase1)); | |
1101 | xfree(passphrase1); | |
1102 | ||
1103 | /* Clear the private key and the random number generator. */ | |
fa08c86b | 1104 | key_free(private); |
5260325f | 1105 | arc4random_stir(); |
1106 | ||
1107 | if (!quiet) | |
1108 | printf("Your identification has been saved in %s.\n", identity_file); | |
1109 | ||
5260325f | 1110 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 1111 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
1112 | if (fd == -1) { | |
5260325f | 1113 | printf("Could not save your public key in %s\n", identity_file); |
1114 | exit(1); | |
1115 | } | |
1c9a907f | 1116 | f = fdopen(fd, "w"); |
1117 | if (f == NULL) { | |
1118 | printf("fdopen %s failed", identity_file); | |
1119 | exit(1); | |
1120 | } | |
a306f2dd | 1121 | if (!key_write(public, f)) |
1122 | fprintf(stderr, "write key failed"); | |
1123 | fprintf(f, " %s\n", comment); | |
5260325f | 1124 | fclose(f); |
1125 | ||
1126 | if (!quiet) { | |
22138a36 | 1127 | char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX); |
a306f2dd | 1128 | printf("Your public key has been saved in %s.\n", |
1129 | identity_file); | |
5260325f | 1130 | printf("The key fingerprint is:\n"); |
22138a36 | 1131 | printf("%s %s\n", fp, comment); |
1132 | xfree(fp); | |
8efc0c15 | 1133 | } |
a306f2dd | 1134 | |
1135 | key_free(public); | |
5260325f | 1136 | exit(0); |
8efc0c15 | 1137 | } |