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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" | |
c35a6dc5 | 15 | RCSID("$OpenBSD: ssh-keygen.c,v 1.107 2003/07/28 09:49:56 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" | |
29 | #include "readpass.h" | |
c35a6dc5 | 30 | #include "moduli.h" |
94ec8c6b | 31 | |
93a56445 | 32 | #ifdef SMARTCARD |
93a56445 | 33 | #include "scard.h" |
dd2495cb | 34 | #endif |
02159d9b | 35 | #ifdef DNS |
36 | #include "dns.h" | |
37 | #endif | |
2b30154a | 38 | |
a306f2dd | 39 | /* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
8efc0c15 | 40 | int bits = 1024; |
41 | ||
aa3378df | 42 | /* |
43 | * Flag indicating that we just want to change the passphrase. This can be | |
44 | * set on the command line. | |
45 | */ | |
8efc0c15 | 46 | int change_passphrase = 0; |
47 | ||
aa3378df | 48 | /* |
49 | * Flag indicating that we just want to change the comment. This can be set | |
50 | * on the command line. | |
51 | */ | |
8efc0c15 | 52 | int change_comment = 0; |
53 | ||
54 | int quiet = 0; | |
55 | ||
f095fcc7 | 56 | /* Flag indicating that we just want to see the key fingerprint */ |
57 | int print_fingerprint = 0; | |
aaf45d87 | 58 | int print_bubblebabble = 0; |
f095fcc7 | 59 | |
5ad13cd7 | 60 | /* The identity file name, given on the command line or entered by the user. */ |
61 | char identity_file[1024]; | |
62 | int have_identity = 0; | |
8efc0c15 | 63 | |
64 | /* This is set to the passphrase if given on the command line. */ | |
65 | char *identity_passphrase = NULL; | |
66 | ||
67 | /* This is set to the new passphrase if given on the command line. */ | |
68 | char *identity_new_passphrase = NULL; | |
69 | ||
70 | /* This is set to the new comment if given on the command line. */ | |
71 | char *identity_comment = NULL; | |
72 | ||
a306f2dd | 73 | /* Dump public key file in format used by real and the original SSH 2 */ |
74 | int convert_to_ssh2 = 0; | |
75 | int convert_from_ssh2 = 0; | |
76 | int print_public = 0; | |
21289cd0 | 77 | int print_generic = 0; |
fa08c86b | 78 | |
3dc93cd8 | 79 | char *key_type_name = NULL; |
a306f2dd | 80 | |
5ad13cd7 | 81 | /* argv0 */ |
5260325f | 82 | #ifdef HAVE___PROGNAME |
5ad13cd7 | 83 | extern char *__progname; |
260d427b | 84 | #else |
85 | char *__progname; | |
86 | #endif | |
8efc0c15 | 87 | |
a306f2dd | 88 | char hostname[MAXHOSTNAMELEN]; |
89 | ||
396c147e | 90 | static void |
5ad13cd7 | 91 | ask_filename(struct passwd *pw, const char *prompt) |
8efc0c15 | 92 | { |
5260325f | 93 | char buf[1024]; |
c523303b | 94 | char *name = NULL; |
95 | ||
8d22d775 | 96 | if (key_type_name == NULL) |
42f11eb2 | 97 | name = _PATH_SSH_CLIENT_ID_RSA; |
8d22d775 | 98 | else |
99 | switch (key_type_from_name(key_type_name)) { | |
100 | case KEY_RSA1: | |
101 | name = _PATH_SSH_CLIENT_IDENTITY; | |
102 | break; | |
103 | case KEY_DSA: | |
104 | name = _PATH_SSH_CLIENT_ID_DSA; | |
105 | break; | |
106 | case KEY_RSA: | |
107 | name = _PATH_SSH_CLIENT_ID_RSA; | |
108 | break; | |
109 | default: | |
110 | fprintf(stderr, "bad key type"); | |
111 | exit(1); | |
112 | break; | |
113 | } | |
114 | ||
c523303b | 115 | snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name); |
8d88011e | 116 | fprintf(stderr, "%s (%s): ", prompt, identity_file); |
5260325f | 117 | if (fgets(buf, sizeof(buf), stdin) == NULL) |
118 | exit(1); | |
119 | if (strchr(buf, '\n')) | |
120 | *strchr(buf, '\n') = 0; | |
121 | if (strcmp(buf, "") != 0) | |
122 | strlcpy(identity_file, buf, sizeof(identity_file)); | |
123 | have_identity = 1; | |
f095fcc7 | 124 | } |
8efc0c15 | 125 | |
396c147e | 126 | static Key * |
abe0fb9f | 127 | load_identity(char *filename) |
a306f2dd | 128 | { |
aeaa3d9e | 129 | char *pass; |
130 | Key *prv; | |
131 | ||
cd332296 | 132 | prv = key_load_private(filename, "", NULL); |
aeaa3d9e | 133 | if (prv == NULL) { |
abe0fb9f | 134 | if (identity_passphrase) |
135 | pass = xstrdup(identity_passphrase); | |
136 | else | |
1843a425 | 137 | pass = read_passphrase("Enter passphrase: ", |
138 | RP_ALLOW_STDIN); | |
aeaa3d9e | 139 | prv = key_load_private(filename, pass, NULL); |
a306f2dd | 140 | memset(pass, 0, strlen(pass)); |
141 | xfree(pass); | |
142 | } | |
aeaa3d9e | 143 | return prv; |
a306f2dd | 144 | } |
145 | ||
94ec8c6b | 146 | #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
7203d6bb | 147 | #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" |
94ec8c6b | 148 | #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
2b87da3b | 149 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
a306f2dd | 150 | |
396c147e | 151 | static void |
a306f2dd | 152 | do_convert_to_ssh2(struct passwd *pw) |
153 | { | |
b587c165 | 154 | Key *k; |
21b30f38 | 155 | u_int len; |
1e3b8b07 | 156 | u_char *blob; |
a306f2dd | 157 | struct stat st; |
158 | ||
159 | if (!have_identity) | |
160 | ask_filename(pw, "Enter file in which the key is"); | |
161 | if (stat(identity_file, &st) < 0) { | |
162 | perror(identity_file); | |
163 | exit(1); | |
164 | } | |
b587c165 | 165 | if ((k = key_load_public(identity_file, NULL)) == NULL) { |
abe0fb9f | 166 | if ((k = load_identity(identity_file)) == NULL) { |
b587c165 | 167 | fprintf(stderr, "load failed\n"); |
168 | exit(1); | |
169 | } | |
a306f2dd | 170 | } |
3566c73c | 171 | if (k->type == KEY_RSA1) { |
172 | fprintf(stderr, "version 1 keys are not supported\n"); | |
173 | exit(1); | |
174 | } | |
f7436b8c | 175 | if (key_to_blob(k, &blob, &len) <= 0) { |
176 | fprintf(stderr, "key_to_blob failed\n"); | |
177 | exit(1); | |
178 | } | |
94ec8c6b | 179 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
a306f2dd | 180 | fprintf(stdout, |
512df038 | 181 | "Comment: \"%u-bit %s, converted from OpenSSH by %s@%s\"\n", |
b587c165 | 182 | key_size(k), key_type(k), |
a306f2dd | 183 | pw->pw_name, hostname); |
184 | dump_base64(stdout, blob, len); | |
94ec8c6b | 185 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
b587c165 | 186 | key_free(k); |
a306f2dd | 187 | xfree(blob); |
188 | exit(0); | |
189 | } | |
190 | ||
396c147e | 191 | static void |
94ec8c6b | 192 | buffer_get_bignum_bits(Buffer *b, BIGNUM *value) |
193 | { | |
194 | int bits = buffer_get_int(b); | |
195 | int bytes = (bits + 7) / 8; | |
457fc0c6 | 196 | |
94ec8c6b | 197 | if (buffer_len(b) < bytes) |
457fc0c6 | 198 | fatal("buffer_get_bignum_bits: input buffer too small: " |
199 | "need %d have %d", bytes, buffer_len(b)); | |
20905a8e | 200 | BN_bin2bn(buffer_ptr(b), bytes, value); |
94ec8c6b | 201 | buffer_consume(b, bytes); |
202 | } | |
203 | ||
396c147e | 204 | static Key * |
c66f9d0e | 205 | do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
94ec8c6b | 206 | { |
207 | Buffer b; | |
94ec8c6b | 208 | Key *key = NULL; |
a599bd06 | 209 | char *type, *cipher; |
d3260e12 | 210 | u_char *sig, data[] = "abcde12345"; |
2e0becb6 | 211 | int magic, rlen, ktype, i1, i2, i3, i4; |
a599bd06 | 212 | u_int slen; |
2e0becb6 | 213 | u_long e; |
94ec8c6b | 214 | |
215 | buffer_init(&b); | |
216 | buffer_append(&b, blob, blen); | |
217 | ||
218 | magic = buffer_get_int(&b); | |
219 | if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { | |
220 | error("bad magic 0x%x != 0x%x", magic, SSH_COM_PRIVATE_KEY_MAGIC); | |
221 | buffer_free(&b); | |
222 | return NULL; | |
223 | } | |
2e0becb6 | 224 | i1 = buffer_get_int(&b); |
94ec8c6b | 225 | type = buffer_get_string(&b, NULL); |
226 | cipher = buffer_get_string(&b, NULL); | |
2e0becb6 | 227 | i2 = buffer_get_int(&b); |
228 | i3 = buffer_get_int(&b); | |
229 | i4 = buffer_get_int(&b); | |
230 | debug("ignore (%d %d %d %d)", i1,i2,i3,i4); | |
94ec8c6b | 231 | if (strcmp(cipher, "none") != 0) { |
232 | error("unsupported cipher %s", cipher); | |
233 | xfree(cipher); | |
234 | buffer_free(&b); | |
457fc0c6 | 235 | xfree(type); |
94ec8c6b | 236 | return NULL; |
237 | } | |
238 | xfree(cipher); | |
239 | ||
457fc0c6 | 240 | if (strstr(type, "dsa")) { |
241 | ktype = KEY_DSA; | |
242 | } else if (strstr(type, "rsa")) { | |
243 | ktype = KEY_RSA; | |
244 | } else { | |
245 | xfree(type); | |
94ec8c6b | 246 | return NULL; |
247 | } | |
457fc0c6 | 248 | key = key_new_private(ktype); |
249 | xfree(type); | |
250 | ||
251 | switch (key->type) { | |
252 | case KEY_DSA: | |
253 | buffer_get_bignum_bits(&b, key->dsa->p); | |
254 | buffer_get_bignum_bits(&b, key->dsa->g); | |
255 | buffer_get_bignum_bits(&b, key->dsa->q); | |
256 | buffer_get_bignum_bits(&b, key->dsa->pub_key); | |
257 | buffer_get_bignum_bits(&b, key->dsa->priv_key); | |
258 | break; | |
259 | case KEY_RSA: | |
2e0becb6 | 260 | e = buffer_get_char(&b); |
261 | debug("e %lx", e); | |
262 | if (e < 30) { | |
263 | e <<= 8; | |
264 | e += buffer_get_char(&b); | |
265 | debug("e %lx", e); | |
266 | e <<= 8; | |
267 | e += buffer_get_char(&b); | |
268 | debug("e %lx", e); | |
269 | } | |
270 | if (!BN_set_word(key->rsa->e, e)) { | |
457fc0c6 | 271 | buffer_free(&b); |
272 | key_free(key); | |
273 | return NULL; | |
274 | } | |
275 | buffer_get_bignum_bits(&b, key->rsa->d); | |
276 | buffer_get_bignum_bits(&b, key->rsa->n); | |
277 | buffer_get_bignum_bits(&b, key->rsa->iqmp); | |
278 | buffer_get_bignum_bits(&b, key->rsa->q); | |
279 | buffer_get_bignum_bits(&b, key->rsa->p); | |
2b63e803 | 280 | rsa_generate_additional_parameters(key->rsa); |
457fc0c6 | 281 | break; |
282 | } | |
94ec8c6b | 283 | rlen = buffer_len(&b); |
6aacefa7 | 284 | if (rlen != 0) |
457fc0c6 | 285 | error("do_convert_private_ssh2_from_blob: " |
286 | "remaining bytes in key blob %d", rlen); | |
94ec8c6b | 287 | buffer_free(&b); |
a599bd06 | 288 | |
289 | /* try the key */ | |
290 | key_sign(key, &sig, &slen, data, sizeof(data)); | |
291 | key_verify(key, sig, slen, data, sizeof(data)); | |
292 | xfree(sig); | |
94ec8c6b | 293 | return key; |
294 | } | |
295 | ||
396c147e | 296 | static void |
a306f2dd | 297 | do_convert_from_ssh2(struct passwd *pw) |
298 | { | |
299 | Key *k; | |
300 | int blen; | |
783dbbdc | 301 | u_int len; |
a306f2dd | 302 | char line[1024], *p; |
cf54363d | 303 | u_char blob[8096]; |
a306f2dd | 304 | char encoded[8096]; |
305 | struct stat st; | |
94ec8c6b | 306 | int escaped = 0, private = 0, ok; |
a306f2dd | 307 | FILE *fp; |
308 | ||
309 | if (!have_identity) | |
310 | ask_filename(pw, "Enter file in which the key is"); | |
311 | if (stat(identity_file, &st) < 0) { | |
312 | perror(identity_file); | |
313 | exit(1); | |
314 | } | |
315 | fp = fopen(identity_file, "r"); | |
316 | if (fp == NULL) { | |
317 | perror(identity_file); | |
318 | exit(1); | |
319 | } | |
320 | encoded[0] = '\0'; | |
321 | while (fgets(line, sizeof(line), fp)) { | |
d0c832f3 | 322 | if (!(p = strchr(line, '\n'))) { |
323 | fprintf(stderr, "input line too long.\n"); | |
324 | exit(1); | |
325 | } | |
326 | if (p > line && p[-1] == '\\') | |
327 | escaped++; | |
a306f2dd | 328 | if (strncmp(line, "----", 4) == 0 || |
329 | strstr(line, ": ") != NULL) { | |
94ec8c6b | 330 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
331 | private = 1; | |
a599bd06 | 332 | if (strstr(line, " END ") != NULL) { |
333 | break; | |
334 | } | |
012bc0e1 | 335 | /* fprintf(stderr, "ignore: %s", line); */ |
a306f2dd | 336 | continue; |
337 | } | |
d0c832f3 | 338 | if (escaped) { |
339 | escaped--; | |
012bc0e1 | 340 | /* fprintf(stderr, "escaped: %s", line); */ |
d0c832f3 | 341 | continue; |
a306f2dd | 342 | } |
343 | *p = '\0'; | |
344 | strlcat(encoded, line, sizeof(encoded)); | |
345 | } | |
783dbbdc | 346 | len = strlen(encoded); |
347 | if (((len % 4) == 3) && | |
348 | (encoded[len-1] == '=') && | |
349 | (encoded[len-2] == '=') && | |
350 | (encoded[len-3] == '=')) | |
351 | encoded[len-3] = '\0'; | |
e6207598 | 352 | blen = uudecode(encoded, blob, sizeof(blob)); |
a306f2dd | 353 | if (blen < 0) { |
354 | fprintf(stderr, "uudecode failed.\n"); | |
355 | exit(1); | |
356 | } | |
94ec8c6b | 357 | k = private ? |
358 | do_convert_private_ssh2_from_blob(blob, blen) : | |
fa08c86b | 359 | key_from_blob(blob, blen); |
94ec8c6b | 360 | if (k == NULL) { |
361 | fprintf(stderr, "decode blob failed.\n"); | |
362 | exit(1); | |
363 | } | |
364 | ok = private ? | |
457fc0c6 | 365 | (k->type == KEY_DSA ? |
366 | PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, NULL, 0, NULL, NULL) : | |
367 | PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, NULL, 0, NULL, NULL)) : | |
94ec8c6b | 368 | key_write(k, stdout); |
369 | if (!ok) { | |
370 | fprintf(stderr, "key write failed"); | |
371 | exit(1); | |
372 | } | |
a306f2dd | 373 | key_free(k); |
4ccb828d | 374 | if (!private) |
375 | fprintf(stdout, "\n"); | |
a306f2dd | 376 | fclose(fp); |
377 | exit(0); | |
378 | } | |
379 | ||
396c147e | 380 | static void |
a306f2dd | 381 | do_print_public(struct passwd *pw) |
382 | { | |
aeaa3d9e | 383 | Key *prv; |
a306f2dd | 384 | struct stat st; |
385 | ||
386 | if (!have_identity) | |
387 | ask_filename(pw, "Enter file in which the key is"); | |
388 | if (stat(identity_file, &st) < 0) { | |
389 | perror(identity_file); | |
390 | exit(1); | |
391 | } | |
abe0fb9f | 392 | prv = load_identity(identity_file); |
aeaa3d9e | 393 | if (prv == NULL) { |
a306f2dd | 394 | fprintf(stderr, "load failed\n"); |
395 | exit(1); | |
396 | } | |
aeaa3d9e | 397 | if (!key_write(prv, stdout)) |
a306f2dd | 398 | fprintf(stderr, "key_write failed"); |
aeaa3d9e | 399 | key_free(prv); |
a306f2dd | 400 | fprintf(stdout, "\n"); |
401 | exit(0); | |
402 | } | |
403 | ||
4f831fd7 | 404 | #ifdef SMARTCARD |
2b30154a | 405 | static void |
93a56445 | 406 | do_upload(struct passwd *pw, const char *sc_reader_id) |
2b30154a | 407 | { |
2b30154a | 408 | Key *prv = NULL; |
409 | struct stat st; | |
b9f62352 | 410 | int ret; |
411 | ||
2b30154a | 412 | if (!have_identity) |
413 | ask_filename(pw, "Enter file in which the key is"); | |
414 | if (stat(identity_file, &st) < 0) { | |
415 | perror(identity_file); | |
b9f62352 | 416 | exit(1); |
2b30154a | 417 | } |
418 | prv = load_identity(identity_file); | |
419 | if (prv == NULL) { | |
420 | error("load failed"); | |
b9f62352 | 421 | exit(1); |
49ccba9c | 422 | } |
b9f62352 | 423 | ret = sc_put_key(prv, sc_reader_id); |
424 | key_free(prv); | |
425 | if (ret < 0) | |
426 | exit(1); | |
bbe88b6d | 427 | logit("loading key done"); |
b9f62352 | 428 | exit(0); |
2b30154a | 429 | } |
93a56445 | 430 | |
431 | static void | |
432 | do_download(struct passwd *pw, const char *sc_reader_id) | |
433 | { | |
0659cace | 434 | Key **keys = NULL; |
435 | int i; | |
93a56445 | 436 | |
0659cace | 437 | keys = sc_get_keys(sc_reader_id, NULL); |
438 | if (keys == NULL) | |
93a56445 | 439 | fatal("cannot read public key from smartcard"); |
0659cace | 440 | for (i = 0; keys[i]; i++) { |
441 | key_write(keys[i], stdout); | |
442 | key_free(keys[i]); | |
443 | fprintf(stdout, "\n"); | |
444 | } | |
445 | xfree(keys); | |
93a56445 | 446 | exit(0); |
447 | } | |
3e984472 | 448 | #endif /* SMARTCARD */ |
2b30154a | 449 | |
396c147e | 450 | static void |
f095fcc7 | 451 | do_fingerprint(struct passwd *pw) |
452 | { | |
c8d54615 | 453 | FILE *f; |
a306f2dd | 454 | Key *public; |
aaf45d87 | 455 | char *comment = NULL, *cp, *ep, line[16*1024], *fp; |
17a3011c | 456 | int i, skip = 0, num = 1, invalid = 1; |
457 | enum fp_rep rep; | |
458 | enum fp_type fptype; | |
5260325f | 459 | struct stat st; |
460 | ||
aeaa3d9e | 461 | fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; |
462 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; | |
aaf45d87 | 463 | |
5260325f | 464 | if (!have_identity) |
465 | ask_filename(pw, "Enter file in which the key is"); | |
466 | if (stat(identity_file, &st) < 0) { | |
467 | perror(identity_file); | |
468 | exit(1); | |
469 | } | |
aeaa3d9e | 470 | public = key_load_public(identity_file, &comment); |
471 | if (public != NULL) { | |
472 | fp = key_fingerprint(public, fptype, rep); | |
512df038 | 473 | printf("%u %s %s\n", key_size(public), fp, comment); |
a306f2dd | 474 | key_free(public); |
fa08c86b | 475 | xfree(comment); |
aaf45d87 | 476 | xfree(fp); |
c8d54615 | 477 | exit(0); |
478 | } | |
aeaa3d9e | 479 | if (comment) |
480 | xfree(comment); | |
c8d54615 | 481 | |
482 | f = fopen(identity_file, "r"); | |
483 | if (f != NULL) { | |
c8d54615 | 484 | while (fgets(line, sizeof(line), f)) { |
485 | i = strlen(line) - 1; | |
486 | if (line[i] != '\n') { | |
487 | error("line %d too long: %.40s...", num, line); | |
488 | skip = 1; | |
489 | continue; | |
490 | } | |
491 | num++; | |
492 | if (skip) { | |
493 | skip = 0; | |
494 | continue; | |
495 | } | |
496 | line[i] = '\0'; | |
497 | ||
498 | /* Skip leading whitespace, empty and comment lines. */ | |
499 | for (cp = line; *cp == ' ' || *cp == '\t'; cp++) | |
500 | ; | |
501 | if (!*cp || *cp == '\n' || *cp == '#') | |
502 | continue ; | |
503 | i = strtol(cp, &ep, 10); | |
504 | if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) { | |
505 | int quoted = 0; | |
506 | comment = cp; | |
512df038 | 507 | for (; *cp && (quoted || (*cp != ' ' && |
508 | *cp != '\t')); cp++) { | |
c8d54615 | 509 | if (*cp == '\\' && cp[1] == '"') |
510 | cp++; /* Skip both */ | |
511 | else if (*cp == '"') | |
512 | quoted = !quoted; | |
513 | } | |
514 | if (!*cp) | |
515 | continue; | |
516 | *cp++ = '\0'; | |
517 | } | |
518 | ep = cp; | |
efcae5b1 | 519 | public = key_new(KEY_RSA1); |
520 | if (key_read(public, &cp) != 1) { | |
521 | cp = ep; | |
522 | key_free(public); | |
523 | public = key_new(KEY_UNSPEC); | |
524 | if (key_read(public, &cp) != 1) { | |
525 | key_free(public); | |
526 | continue; | |
527 | } | |
5260325f | 528 | } |
efcae5b1 | 529 | comment = *cp ? cp : comment; |
aeaa3d9e | 530 | fp = key_fingerprint(public, fptype, rep); |
512df038 | 531 | printf("%u %s %s\n", key_size(public), fp, |
efcae5b1 | 532 | comment ? comment : "no comment"); |
aaf45d87 | 533 | xfree(fp); |
aeaa3d9e | 534 | key_free(public); |
efcae5b1 | 535 | invalid = 0; |
5260325f | 536 | } |
c8d54615 | 537 | fclose(f); |
538 | } | |
539 | if (invalid) { | |
f564d016 | 540 | printf("%s is not a public key file.\n", identity_file); |
c8d54615 | 541 | exit(1); |
5260325f | 542 | } |
5260325f | 543 | exit(0); |
f095fcc7 | 544 | } |
545 | ||
5260325f | 546 | /* |
547 | * Perform changing a passphrase. The argument is the passwd structure | |
548 | * for the current user. | |
549 | */ | |
396c147e | 550 | static void |
f095fcc7 | 551 | do_change_passphrase(struct passwd *pw) |
552 | { | |
5260325f | 553 | char *comment; |
554 | char *old_passphrase, *passphrase1, *passphrase2; | |
555 | struct stat st; | |
a306f2dd | 556 | Key *private; |
5260325f | 557 | |
558 | if (!have_identity) | |
559 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 560 | if (stat(identity_file, &st) < 0) { |
561 | perror(identity_file); | |
562 | exit(1); | |
563 | } | |
5260325f | 564 | /* Try to load the file with empty passphrase. */ |
aeaa3d9e | 565 | private = key_load_private(identity_file, "", &comment); |
566 | if (private == NULL) { | |
5260325f | 567 | if (identity_passphrase) |
568 | old_passphrase = xstrdup(identity_passphrase); | |
569 | else | |
1843a425 | 570 | old_passphrase = |
571 | read_passphrase("Enter old passphrase: ", | |
572 | RP_ALLOW_STDIN); | |
573 | private = key_load_private(identity_file, old_passphrase, | |
574 | &comment); | |
aeaa3d9e | 575 | memset(old_passphrase, 0, strlen(old_passphrase)); |
576 | xfree(old_passphrase); | |
577 | if (private == NULL) { | |
5260325f | 578 | printf("Bad passphrase.\n"); |
579 | exit(1); | |
580 | } | |
5260325f | 581 | } |
582 | printf("Key has comment '%s'\n", comment); | |
583 | ||
584 | /* Ask the new passphrase (twice). */ | |
585 | if (identity_new_passphrase) { | |
586 | passphrase1 = xstrdup(identity_new_passphrase); | |
587 | passphrase2 = NULL; | |
588 | } else { | |
589 | passphrase1 = | |
1843a425 | 590 | read_passphrase("Enter new passphrase (empty for no " |
591 | "passphrase): ", RP_ALLOW_STDIN); | |
592 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
184eed6a | 593 | RP_ALLOW_STDIN); |
5260325f | 594 | |
595 | /* Verify that they are the same. */ | |
596 | if (strcmp(passphrase1, passphrase2) != 0) { | |
597 | memset(passphrase1, 0, strlen(passphrase1)); | |
598 | memset(passphrase2, 0, strlen(passphrase2)); | |
599 | xfree(passphrase1); | |
600 | xfree(passphrase2); | |
601 | printf("Pass phrases do not match. Try again.\n"); | |
602 | exit(1); | |
603 | } | |
604 | /* Destroy the other copy. */ | |
605 | memset(passphrase2, 0, strlen(passphrase2)); | |
606 | xfree(passphrase2); | |
8efc0c15 | 607 | } |
8efc0c15 | 608 | |
5260325f | 609 | /* Save the file using the new passphrase. */ |
aeaa3d9e | 610 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 611 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 612 | memset(passphrase1, 0, strlen(passphrase1)); |
613 | xfree(passphrase1); | |
a306f2dd | 614 | key_free(private); |
5260325f | 615 | xfree(comment); |
616 | exit(1); | |
617 | } | |
618 | /* Destroy the passphrase and the copy of the key in memory. */ | |
619 | memset(passphrase1, 0, strlen(passphrase1)); | |
620 | xfree(passphrase1); | |
a306f2dd | 621 | key_free(private); /* Destroys contents */ |
5260325f | 622 | xfree(comment); |
623 | ||
624 | printf("Your identification has been saved with the new passphrase.\n"); | |
625 | exit(0); | |
626 | } | |
8efc0c15 | 627 | |
21289cd0 | 628 | #ifdef DNS |
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 | } | |
658 | #endif /* DNS */ | |
659 | ||
5260325f | 660 | /* |
661 | * Change the comment of a private key file. | |
662 | */ | |
396c147e | 663 | static void |
8efc0c15 | 664 | do_change_comment(struct passwd *pw) |
665 | { | |
1c9a907f | 666 | char new_comment[1024], *comment, *passphrase; |
aeaa3d9e | 667 | Key *private; |
668 | Key *public; | |
5260325f | 669 | struct stat st; |
670 | FILE *f; | |
1c9a907f | 671 | int fd; |
5260325f | 672 | |
673 | if (!have_identity) | |
674 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 675 | if (stat(identity_file, &st) < 0) { |
676 | perror(identity_file); | |
677 | exit(1); | |
678 | } | |
aeaa3d9e | 679 | private = key_load_private(identity_file, "", &comment); |
680 | if (private == NULL) { | |
5260325f | 681 | if (identity_passphrase) |
682 | passphrase = xstrdup(identity_passphrase); | |
683 | else if (identity_new_passphrase) | |
684 | passphrase = xstrdup(identity_new_passphrase); | |
685 | else | |
1843a425 | 686 | passphrase = read_passphrase("Enter passphrase: ", |
687 | RP_ALLOW_STDIN); | |
5260325f | 688 | /* Try to load using the passphrase. */ |
aeaa3d9e | 689 | private = key_load_private(identity_file, passphrase, &comment); |
690 | if (private == NULL) { | |
5260325f | 691 | memset(passphrase, 0, strlen(passphrase)); |
692 | xfree(passphrase); | |
693 | printf("Bad passphrase.\n"); | |
694 | exit(1); | |
695 | } | |
aeaa3d9e | 696 | } else { |
697 | passphrase = xstrdup(""); | |
5260325f | 698 | } |
aeaa3d9e | 699 | if (private->type != KEY_RSA1) { |
700 | fprintf(stderr, "Comments are only supported for RSA1 keys.\n"); | |
701 | key_free(private); | |
702 | exit(1); | |
184eed6a | 703 | } |
5260325f | 704 | printf("Key now has comment '%s'\n", comment); |
705 | ||
706 | if (identity_comment) { | |
707 | strlcpy(new_comment, identity_comment, sizeof(new_comment)); | |
708 | } else { | |
709 | printf("Enter new comment: "); | |
710 | fflush(stdout); | |
711 | if (!fgets(new_comment, sizeof(new_comment), stdin)) { | |
712 | memset(passphrase, 0, strlen(passphrase)); | |
a306f2dd | 713 | key_free(private); |
5260325f | 714 | exit(1); |
715 | } | |
5260325f | 716 | if (strchr(new_comment, '\n')) |
717 | *strchr(new_comment, '\n') = 0; | |
718 | } | |
719 | ||
720 | /* Save the file using the new passphrase. */ | |
aeaa3d9e | 721 | if (!key_save_private(private, identity_file, passphrase, new_comment)) { |
58cfa257 | 722 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 723 | memset(passphrase, 0, strlen(passphrase)); |
724 | xfree(passphrase); | |
a306f2dd | 725 | key_free(private); |
5260325f | 726 | xfree(comment); |
727 | exit(1); | |
8efc0c15 | 728 | } |
5260325f | 729 | memset(passphrase, 0, strlen(passphrase)); |
730 | xfree(passphrase); | |
aeaa3d9e | 731 | public = key_from_private(private); |
a306f2dd | 732 | key_free(private); |
5260325f | 733 | |
5260325f | 734 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 735 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
736 | if (fd == -1) { | |
5260325f | 737 | printf("Could not save your public key in %s\n", identity_file); |
738 | exit(1); | |
739 | } | |
1c9a907f | 740 | f = fdopen(fd, "w"); |
741 | if (f == NULL) { | |
742 | printf("fdopen %s failed", identity_file); | |
743 | exit(1); | |
744 | } | |
a306f2dd | 745 | if (!key_write(public, f)) |
746 | fprintf(stderr, "write key failed"); | |
747 | key_free(public); | |
748 | fprintf(f, " %s\n", new_comment); | |
5260325f | 749 | fclose(f); |
750 | ||
751 | xfree(comment); | |
752 | ||
753 | printf("The comment in your key file has been changed.\n"); | |
754 | exit(0); | |
8efc0c15 | 755 | } |
756 | ||
396c147e | 757 | static void |
5ad13cd7 | 758 | usage(void) |
759 | { | |
58153e34 | 760 | fprintf(stderr, "Usage: %s [options]\n", __progname); |
761 | fprintf(stderr, "Options:\n"); | |
762 | fprintf(stderr, " -b bits Number of bits in the key to create.\n"); | |
763 | fprintf(stderr, " -c Change comment in private and public key files.\n"); | |
764 | fprintf(stderr, " -e Convert OpenSSH to IETF SECSH key file.\n"); | |
765 | fprintf(stderr, " -f filename Filename of the key file.\n"); | |
21289cd0 | 766 | fprintf(stderr, " -g Use generic DNS resource record format.\n"); |
58153e34 | 767 | fprintf(stderr, " -i Convert IETF SECSH to OpenSSH key file.\n"); |
768 | fprintf(stderr, " -l Show fingerprint of key file.\n"); | |
769 | fprintf(stderr, " -p Change passphrase of private key file.\n"); | |
770 | fprintf(stderr, " -q Quiet.\n"); | |
771 | fprintf(stderr, " -y Read private key file and print public key.\n"); | |
772 | fprintf(stderr, " -t type Specify type of key to create.\n"); | |
773 | fprintf(stderr, " -B Show bubblebabble digest of key file.\n"); | |
774 | fprintf(stderr, " -C comment Provide new comment.\n"); | |
775 | fprintf(stderr, " -N phrase Provide new passphrase.\n"); | |
776 | fprintf(stderr, " -P phrase Provide old passphrase.\n"); | |
21289cd0 | 777 | #ifdef DNS |
778 | fprintf(stderr, " -r hostname Print DNS resource record.\n"); | |
779 | #endif /* DNS */ | |
58153e34 | 780 | #ifdef SMARTCARD |
781 | fprintf(stderr, " -D reader Download public key from smartcard.\n"); | |
782 | fprintf(stderr, " -U reader Upload private key to smartcard.\n"); | |
783 | #endif /* SMARTCARD */ | |
784 | ||
c35a6dc5 | 785 | fprintf(stderr, " -G file Generate candidates for DH-GEX moduli\n"); |
786 | fprintf(stderr, " -T file Screen candidates for DH-GEX moduli\n"); | |
787 | ||
5260325f | 788 | exit(1); |
5ad13cd7 | 789 | } |
790 | ||
5260325f | 791 | /* |
792 | * Main program for key management. | |
793 | */ | |
8efc0c15 | 794 | int |
795 | main(int ac, char **av) | |
796 | { | |
3dc93cd8 | 797 | char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2; |
c35a6dc5 | 798 | char out_file[PATH_MAX], *reader_id = NULL; |
21289cd0 | 799 | char *resource_record_hostname = NULL; |
1c9a907f | 800 | Key *private, *public; |
5260325f | 801 | struct passwd *pw; |
5260325f | 802 | struct stat st; |
c35a6dc5 | 803 | int opt, type, fd, download = 0, memory = 0; |
804 | int generator_wanted = 0, trials = 100; | |
805 | int do_gen_candidates = 0, do_screen_candidates = 0; | |
806 | BIGNUM *start = NULL; | |
5260325f | 807 | FILE *f; |
fa08c86b | 808 | |
5260325f | 809 | extern int optind; |
810 | extern char *optarg; | |
811 | ||
260d427b | 812 | __progname = get_progname(av[0]); |
264dce47 | 813 | |
fa649821 | 814 | SSLeay_add_all_algorithms(); |
c35a6dc5 | 815 | log_init(av[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
816 | ||
ce88d9df | 817 | init_rng(); |
818 | seed_rng(); | |
a306f2dd | 819 | |
aa3378df | 820 | /* we need this for the home * directory. */ |
5260325f | 821 | pw = getpwuid(getuid()); |
822 | if (!pw) { | |
823 | printf("You don't exist, go away!\n"); | |
824 | exit(1); | |
825 | } | |
a306f2dd | 826 | if (gethostname(hostname, sizeof(hostname)) < 0) { |
827 | perror("gethostname"); | |
828 | exit(1); | |
829 | } | |
aa3378df | 830 | |
c35a6dc5 | 831 | while ((opt = getopt(ac, av, |
832 | "degiqpclBRxXyb:f:t:U:D:P:N:C:r:g:T:G:M:S:a:W:")) != -1) { | |
5260325f | 833 | switch (opt) { |
834 | case 'b': | |
835 | bits = atoi(optarg); | |
836 | if (bits < 512 || bits > 32768) { | |
837 | printf("Bits has bad value.\n"); | |
838 | exit(1); | |
839 | } | |
840 | break; | |
5260325f | 841 | case 'l': |
842 | print_fingerprint = 1; | |
843 | break; | |
aaf45d87 | 844 | case 'B': |
845 | print_bubblebabble = 1; | |
846 | break; | |
5260325f | 847 | case 'p': |
848 | change_passphrase = 1; | |
849 | break; | |
5260325f | 850 | case 'c': |
851 | change_comment = 1; | |
852 | break; | |
5260325f | 853 | case 'f': |
854 | strlcpy(identity_file, optarg, sizeof(identity_file)); | |
855 | have_identity = 1; | |
856 | break; | |
21289cd0 | 857 | case 'g': |
858 | print_generic = 1; | |
859 | break; | |
5260325f | 860 | case 'P': |
861 | identity_passphrase = optarg; | |
862 | break; | |
5260325f | 863 | case 'N': |
864 | identity_new_passphrase = optarg; | |
865 | break; | |
5260325f | 866 | case 'C': |
867 | identity_comment = optarg; | |
868 | break; | |
5260325f | 869 | case 'q': |
870 | quiet = 1; | |
871 | break; | |
a306f2dd | 872 | case 'R': |
fa08c86b | 873 | /* unused */ |
874 | exit(0); | |
a306f2dd | 875 | break; |
5deceabb | 876 | case 'e': |
a306f2dd | 877 | case 'x': |
5deceabb | 878 | /* export key */ |
a306f2dd | 879 | convert_to_ssh2 = 1; |
880 | break; | |
5deceabb | 881 | case 'i': |
a306f2dd | 882 | case 'X': |
5deceabb | 883 | /* import key */ |
a306f2dd | 884 | convert_from_ssh2 = 1; |
885 | break; | |
a306f2dd | 886 | case 'y': |
887 | print_public = 1; | |
888 | break; | |
a306f2dd | 889 | case 'd': |
fa08c86b | 890 | key_type_name = "dsa"; |
a306f2dd | 891 | break; |
fa08c86b | 892 | case 't': |
893 | key_type_name = optarg; | |
fa08c86b | 894 | break; |
93a56445 | 895 | case 'D': |
896 | download = 1; | |
285d2b15 | 897 | case 'U': |
93a56445 | 898 | reader_id = optarg; |
2b30154a | 899 | break; |
21289cd0 | 900 | case 'r': |
901 | resource_record_hostname = optarg; | |
902 | break; | |
c35a6dc5 | 903 | case 'W': |
904 | generator_wanted = atoi(optarg); | |
905 | if (generator_wanted < 1) | |
906 | fatal("Desired generator has bad value."); | |
907 | break; | |
908 | case 'a': | |
909 | trials = atoi(optarg); | |
910 | if (trials < TRIAL_MINIMUM) { | |
911 | fatal("Minimum primality trials is %d", | |
912 | TRIAL_MINIMUM); | |
913 | } | |
914 | break; | |
915 | case 'M': | |
916 | memory = atoi(optarg); | |
917 | if (memory != 0 && | |
918 | (memory < LARGE_MINIMUM || memory > LARGE_MAXIMUM)) { | |
919 | fatal("Invalid memory amount (min %ld, max %ld)", | |
920 | LARGE_MINIMUM, LARGE_MAXIMUM); | |
921 | } | |
922 | break; | |
923 | case 'G': | |
924 | do_gen_candidates = 1; | |
925 | strlcpy(out_file, optarg, sizeof(out_file)); | |
926 | break; | |
927 | case 'T': | |
928 | do_screen_candidates = 1; | |
929 | strlcpy(out_file, optarg, sizeof(out_file)); | |
930 | break; | |
931 | case 'S': | |
932 | /* XXX - also compare length against bits */ | |
933 | if (BN_hex2bn(&start, optarg) == 0) | |
934 | fatal("Invalid start point."); | |
935 | break; | |
5260325f | 936 | case '?': |
937 | default: | |
938 | usage(); | |
939 | } | |
940 | } | |
941 | if (optind < ac) { | |
942 | printf("Too many arguments.\n"); | |
943 | usage(); | |
944 | } | |
945 | if (change_passphrase && change_comment) { | |
946 | printf("Can only have one of -p and -c.\n"); | |
947 | usage(); | |
948 | } | |
aaf45d87 | 949 | if (print_fingerprint || print_bubblebabble) |
5260325f | 950 | do_fingerprint(pw); |
5260325f | 951 | if (change_passphrase) |
952 | do_change_passphrase(pw); | |
633151a3 | 953 | if (change_comment) |
954 | do_change_comment(pw); | |
ce88d9df | 955 | if (convert_to_ssh2) |
956 | do_convert_to_ssh2(pw); | |
957 | if (convert_from_ssh2) | |
958 | do_convert_from_ssh2(pw); | |
a306f2dd | 959 | if (print_public) |
960 | do_print_public(pw); | |
21289cd0 | 961 | if (resource_record_hostname != NULL) { |
962 | #ifdef DNS | |
963 | do_print_resource_record(pw, resource_record_hostname); | |
964 | #else /* DNS */ | |
965 | fatal("no DNS support."); | |
966 | #endif /* DNS */ | |
967 | } | |
93a56445 | 968 | if (reader_id != NULL) { |
4f831fd7 | 969 | #ifdef SMARTCARD |
93a56445 | 970 | if (download) |
971 | do_download(pw, reader_id); | |
972 | else | |
973 | do_upload(pw, reader_id); | |
3e984472 | 974 | #else /* SMARTCARD */ |
4f831fd7 | 975 | fatal("no support for smartcards."); |
3e984472 | 976 | #endif /* SMARTCARD */ |
93a56445 | 977 | } |
5260325f | 978 | |
c35a6dc5 | 979 | if (do_gen_candidates) { |
980 | FILE *out = fopen(out_file, "w"); | |
981 | ||
982 | if (out == NULL) { | |
983 | error("Couldn't open modulus candidate file \"%s\": %s", | |
984 | out_file, strerror(errno)); | |
985 | return (1); | |
986 | } | |
987 | if (gen_candidates(out, memory, bits, start) != 0) | |
988 | fatal("modulus candidate generation failed\n"); | |
989 | ||
990 | return (0); | |
991 | } | |
992 | ||
993 | if (do_screen_candidates) { | |
994 | FILE *in; | |
995 | FILE *out = fopen(out_file, "w"); | |
996 | ||
997 | if (have_identity && strcmp(identity_file, "-") != 0) { | |
998 | if ((in = fopen(identity_file, "r")) == NULL) { | |
999 | fatal("Couldn't open modulus candidate " | |
1000 | "file \"%s\": %s", identity_file, | |
1001 | strerror(errno)); | |
1002 | } | |
1003 | } else | |
1004 | in = stdin; | |
1005 | ||
1006 | if (out == NULL) { | |
1007 | fatal("Couldn't open moduli file \"%s\": %s", | |
1008 | out_file, strerror(errno)); | |
1009 | } | |
1010 | if (prime_test(in, out, trials, generator_wanted) != 0) | |
1011 | fatal("modulus screening failed\n"); | |
1012 | } | |
1013 | ||
5260325f | 1014 | arc4random_stir(); |
1015 | ||
bb28e836 | 1016 | if (key_type_name == NULL) { |
1017 | printf("You must specify a key type (-t).\n"); | |
1018 | usage(); | |
1019 | } | |
c523303b | 1020 | type = key_type_from_name(key_type_name); |
1021 | if (type == KEY_UNSPEC) { | |
1022 | fprintf(stderr, "unknown key type %s\n", key_type_name); | |
1023 | exit(1); | |
a306f2dd | 1024 | } |
fa08c86b | 1025 | if (!quiet) |
c523303b | 1026 | printf("Generating public/private %s key pair.\n", key_type_name); |
fa08c86b | 1027 | private = key_generate(type, bits); |
1028 | if (private == NULL) { | |
1029 | fprintf(stderr, "key_generate failed"); | |
1030 | exit(1); | |
1031 | } | |
1032 | public = key_from_private(private); | |
5260325f | 1033 | |
1034 | if (!have_identity) | |
1035 | ask_filename(pw, "Enter file in which to save the key"); | |
1036 | ||
1037 | /* Create ~/.ssh directory if it doesn\'t already exist. */ | |
42f11eb2 | 1038 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR); |
5260325f | 1039 | if (strstr(identity_file, dotsshdir) != NULL && |
1040 | stat(dotsshdir, &st) < 0) { | |
704b1659 | 1041 | if (mkdir(dotsshdir, 0700) < 0) |
5260325f | 1042 | error("Could not create directory '%s'.", dotsshdir); |
1043 | else if (!quiet) | |
1044 | printf("Created directory '%s'.\n", dotsshdir); | |
1045 | } | |
1046 | /* If the file already exists, ask the user to confirm. */ | |
1047 | if (stat(identity_file, &st) >= 0) { | |
1048 | char yesno[3]; | |
1049 | printf("%s already exists.\n", identity_file); | |
1050 | printf("Overwrite (y/n)? "); | |
1051 | fflush(stdout); | |
1052 | if (fgets(yesno, sizeof(yesno), stdin) == NULL) | |
1053 | exit(1); | |
1054 | if (yesno[0] != 'y' && yesno[0] != 'Y') | |
1055 | exit(1); | |
1056 | } | |
1057 | /* Ask for a passphrase (twice). */ | |
1058 | if (identity_passphrase) | |
1059 | passphrase1 = xstrdup(identity_passphrase); | |
1060 | else if (identity_new_passphrase) | |
1061 | passphrase1 = xstrdup(identity_new_passphrase); | |
1062 | else { | |
1063 | passphrase_again: | |
1064 | passphrase1 = | |
1843a425 | 1065 | read_passphrase("Enter passphrase (empty for no " |
1066 | "passphrase): ", RP_ALLOW_STDIN); | |
1067 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
1068 | RP_ALLOW_STDIN); | |
5260325f | 1069 | if (strcmp(passphrase1, passphrase2) != 0) { |
1843a425 | 1070 | /* |
1071 | * The passphrases do not match. Clear them and | |
1072 | * retry. | |
1073 | */ | |
5260325f | 1074 | memset(passphrase1, 0, strlen(passphrase1)); |
1075 | memset(passphrase2, 0, strlen(passphrase2)); | |
1076 | xfree(passphrase1); | |
1077 | xfree(passphrase2); | |
1078 | printf("Passphrases do not match. Try again.\n"); | |
1079 | goto passphrase_again; | |
1080 | } | |
1081 | /* Clear the other copy of the passphrase. */ | |
1082 | memset(passphrase2, 0, strlen(passphrase2)); | |
1083 | xfree(passphrase2); | |
1084 | } | |
1085 | ||
5260325f | 1086 | if (identity_comment) { |
1087 | strlcpy(comment, identity_comment, sizeof(comment)); | |
1088 | } else { | |
6ae2364d | 1089 | /* Create default commend field for the passphrase. */ |
5260325f | 1090 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
1091 | } | |
1092 | ||
1093 | /* Save the key with the given passphrase and comment. */ | |
aeaa3d9e | 1094 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 1095 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 1096 | memset(passphrase1, 0, strlen(passphrase1)); |
1097 | xfree(passphrase1); | |
1098 | exit(1); | |
1099 | } | |
1100 | /* Clear the passphrase. */ | |
1101 | memset(passphrase1, 0, strlen(passphrase1)); | |
1102 | xfree(passphrase1); | |
1103 | ||
1104 | /* Clear the private key and the random number generator. */ | |
fa08c86b | 1105 | key_free(private); |
5260325f | 1106 | arc4random_stir(); |
1107 | ||
1108 | if (!quiet) | |
1109 | printf("Your identification has been saved in %s.\n", identity_file); | |
1110 | ||
5260325f | 1111 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 1112 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
1113 | if (fd == -1) { | |
5260325f | 1114 | printf("Could not save your public key in %s\n", identity_file); |
1115 | exit(1); | |
1116 | } | |
1c9a907f | 1117 | f = fdopen(fd, "w"); |
1118 | if (f == NULL) { | |
1119 | printf("fdopen %s failed", identity_file); | |
1120 | exit(1); | |
1121 | } | |
a306f2dd | 1122 | if (!key_write(public, f)) |
1123 | fprintf(stderr, "write key failed"); | |
1124 | fprintf(f, " %s\n", comment); | |
5260325f | 1125 | fclose(f); |
1126 | ||
1127 | if (!quiet) { | |
22138a36 | 1128 | char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX); |
a306f2dd | 1129 | printf("Your public key has been saved in %s.\n", |
1130 | identity_file); | |
5260325f | 1131 | printf("The key fingerprint is:\n"); |
22138a36 | 1132 | printf("%s %s\n", fp, comment); |
1133 | xfree(fp); | |
8efc0c15 | 1134 | } |
a306f2dd | 1135 | |
1136 | key_free(public); | |
5260325f | 1137 | exit(0); |
8efc0c15 | 1138 | } |