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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" | |
dd2495cb | 15 | RCSID("$OpenBSD: ssh-keygen.c,v 1.79 2001/08/02 16:14:05 jakob 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" | |
94ec8c6b | 30 | |
93a56445 | 31 | #ifdef SMARTCARD |
32 | #include <sectok.h> | |
33 | #include <openssl/engine.h> | |
34 | #include "scard.h" | |
dd2495cb | 35 | #endif |
2b30154a | 36 | |
a306f2dd | 37 | /* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
8efc0c15 | 38 | int bits = 1024; |
39 | ||
aa3378df | 40 | /* |
41 | * Flag indicating that we just want to change the passphrase. This can be | |
42 | * set on the command line. | |
43 | */ | |
8efc0c15 | 44 | int change_passphrase = 0; |
45 | ||
aa3378df | 46 | /* |
47 | * Flag indicating that we just want to change the comment. This can be set | |
48 | * on the command line. | |
49 | */ | |
8efc0c15 | 50 | int change_comment = 0; |
51 | ||
52 | int quiet = 0; | |
53 | ||
f095fcc7 | 54 | /* Flag indicating that we just want to see the key fingerprint */ |
55 | int print_fingerprint = 0; | |
aaf45d87 | 56 | int print_bubblebabble = 0; |
f095fcc7 | 57 | |
5ad13cd7 | 58 | /* The identity file name, given on the command line or entered by the user. */ |
59 | char identity_file[1024]; | |
60 | int have_identity = 0; | |
8efc0c15 | 61 | |
62 | /* This is set to the passphrase if given on the command line. */ | |
63 | char *identity_passphrase = NULL; | |
64 | ||
65 | /* This is set to the new passphrase if given on the command line. */ | |
66 | char *identity_new_passphrase = NULL; | |
67 | ||
68 | /* This is set to the new comment if given on the command line. */ | |
69 | char *identity_comment = NULL; | |
70 | ||
a306f2dd | 71 | /* Dump public key file in format used by real and the original SSH 2 */ |
72 | int convert_to_ssh2 = 0; | |
73 | int convert_from_ssh2 = 0; | |
74 | int print_public = 0; | |
fa08c86b | 75 | |
c523303b | 76 | /* default to RSA for SSH-1 */ |
77 | char *key_type_name = "rsa1"; | |
a306f2dd | 78 | |
5ad13cd7 | 79 | /* argv0 */ |
5260325f | 80 | #ifdef HAVE___PROGNAME |
5ad13cd7 | 81 | extern char *__progname; |
260d427b | 82 | #else |
83 | char *__progname; | |
84 | #endif | |
8efc0c15 | 85 | |
a306f2dd | 86 | char hostname[MAXHOSTNAMELEN]; |
87 | ||
396c147e | 88 | static void |
5ad13cd7 | 89 | ask_filename(struct passwd *pw, const char *prompt) |
8efc0c15 | 90 | { |
5260325f | 91 | char buf[1024]; |
c523303b | 92 | char *name = NULL; |
93 | ||
94 | switch (key_type_from_name(key_type_name)) { | |
95 | case KEY_RSA1: | |
42f11eb2 | 96 | name = _PATH_SSH_CLIENT_IDENTITY; |
c523303b | 97 | break; |
98 | case KEY_DSA: | |
42f11eb2 | 99 | name = _PATH_SSH_CLIENT_ID_DSA; |
c523303b | 100 | break; |
101 | case KEY_RSA: | |
42f11eb2 | 102 | name = _PATH_SSH_CLIENT_ID_RSA; |
c523303b | 103 | break; |
104 | default: | |
105 | fprintf(stderr, "bad key type"); | |
106 | exit(1); | |
107 | break; | |
108 | } | |
109 | snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name); | |
8d88011e | 110 | fprintf(stderr, "%s (%s): ", prompt, identity_file); |
111 | fflush(stderr); | |
5260325f | 112 | if (fgets(buf, sizeof(buf), stdin) == NULL) |
113 | exit(1); | |
114 | if (strchr(buf, '\n')) | |
115 | *strchr(buf, '\n') = 0; | |
116 | if (strcmp(buf, "") != 0) | |
117 | strlcpy(identity_file, buf, sizeof(identity_file)); | |
118 | have_identity = 1; | |
f095fcc7 | 119 | } |
8efc0c15 | 120 | |
396c147e | 121 | static Key * |
abe0fb9f | 122 | load_identity(char *filename) |
a306f2dd | 123 | { |
aeaa3d9e | 124 | char *pass; |
125 | Key *prv; | |
126 | ||
cd332296 | 127 | prv = key_load_private(filename, "", NULL); |
aeaa3d9e | 128 | if (prv == NULL) { |
abe0fb9f | 129 | if (identity_passphrase) |
130 | pass = xstrdup(identity_passphrase); | |
131 | else | |
1843a425 | 132 | pass = read_passphrase("Enter passphrase: ", |
133 | RP_ALLOW_STDIN); | |
aeaa3d9e | 134 | prv = key_load_private(filename, pass, NULL); |
a306f2dd | 135 | memset(pass, 0, strlen(pass)); |
136 | xfree(pass); | |
137 | } | |
aeaa3d9e | 138 | return prv; |
a306f2dd | 139 | } |
140 | ||
94ec8c6b | 141 | #define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
142 | #define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----" | |
143 | #define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" | |
2b87da3b | 144 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
a306f2dd | 145 | |
396c147e | 146 | static void |
a306f2dd | 147 | do_convert_to_ssh2(struct passwd *pw) |
148 | { | |
b587c165 | 149 | Key *k; |
a306f2dd | 150 | int len; |
1e3b8b07 | 151 | u_char *blob; |
a306f2dd | 152 | struct stat st; |
153 | ||
154 | if (!have_identity) | |
155 | ask_filename(pw, "Enter file in which the key is"); | |
156 | if (stat(identity_file, &st) < 0) { | |
157 | perror(identity_file); | |
158 | exit(1); | |
159 | } | |
b587c165 | 160 | if ((k = key_load_public(identity_file, NULL)) == NULL) { |
abe0fb9f | 161 | if ((k = load_identity(identity_file)) == NULL) { |
b587c165 | 162 | fprintf(stderr, "load failed\n"); |
163 | exit(1); | |
164 | } | |
a306f2dd | 165 | } |
b587c165 | 166 | key_to_blob(k, &blob, &len); |
94ec8c6b | 167 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
a306f2dd | 168 | fprintf(stdout, |
94ec8c6b | 169 | "Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", |
b587c165 | 170 | key_size(k), key_type(k), |
a306f2dd | 171 | pw->pw_name, hostname); |
172 | dump_base64(stdout, blob, len); | |
94ec8c6b | 173 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
b587c165 | 174 | key_free(k); |
a306f2dd | 175 | xfree(blob); |
176 | exit(0); | |
177 | } | |
178 | ||
396c147e | 179 | static void |
94ec8c6b | 180 | buffer_get_bignum_bits(Buffer *b, BIGNUM *value) |
181 | { | |
182 | int bits = buffer_get_int(b); | |
183 | int bytes = (bits + 7) / 8; | |
457fc0c6 | 184 | |
94ec8c6b | 185 | if (buffer_len(b) < bytes) |
457fc0c6 | 186 | fatal("buffer_get_bignum_bits: input buffer too small: " |
187 | "need %d have %d", bytes, buffer_len(b)); | |
1e3b8b07 | 188 | BN_bin2bn((u_char *)buffer_ptr(b), bytes, value); |
94ec8c6b | 189 | buffer_consume(b, bytes); |
190 | } | |
191 | ||
396c147e | 192 | static Key * |
94ec8c6b | 193 | do_convert_private_ssh2_from_blob(char *blob, int blen) |
194 | { | |
195 | Buffer b; | |
94ec8c6b | 196 | Key *key = NULL; |
a599bd06 | 197 | char *type, *cipher; |
d3260e12 | 198 | u_char *sig, data[] = "abcde12345"; |
2e0becb6 | 199 | int magic, rlen, ktype, i1, i2, i3, i4; |
a599bd06 | 200 | u_int slen; |
2e0becb6 | 201 | u_long e; |
94ec8c6b | 202 | |
203 | buffer_init(&b); | |
204 | buffer_append(&b, blob, blen); | |
205 | ||
206 | magic = buffer_get_int(&b); | |
207 | if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { | |
208 | error("bad magic 0x%x != 0x%x", magic, SSH_COM_PRIVATE_KEY_MAGIC); | |
209 | buffer_free(&b); | |
210 | return NULL; | |
211 | } | |
2e0becb6 | 212 | i1 = buffer_get_int(&b); |
94ec8c6b | 213 | type = buffer_get_string(&b, NULL); |
214 | cipher = buffer_get_string(&b, NULL); | |
2e0becb6 | 215 | i2 = buffer_get_int(&b); |
216 | i3 = buffer_get_int(&b); | |
217 | i4 = buffer_get_int(&b); | |
218 | debug("ignore (%d %d %d %d)", i1,i2,i3,i4); | |
94ec8c6b | 219 | if (strcmp(cipher, "none") != 0) { |
220 | error("unsupported cipher %s", cipher); | |
221 | xfree(cipher); | |
222 | buffer_free(&b); | |
457fc0c6 | 223 | xfree(type); |
94ec8c6b | 224 | return NULL; |
225 | } | |
226 | xfree(cipher); | |
227 | ||
457fc0c6 | 228 | if (strstr(type, "dsa")) { |
229 | ktype = KEY_DSA; | |
230 | } else if (strstr(type, "rsa")) { | |
231 | ktype = KEY_RSA; | |
232 | } else { | |
233 | xfree(type); | |
94ec8c6b | 234 | return NULL; |
235 | } | |
457fc0c6 | 236 | key = key_new_private(ktype); |
237 | xfree(type); | |
238 | ||
239 | switch (key->type) { | |
240 | case KEY_DSA: | |
241 | buffer_get_bignum_bits(&b, key->dsa->p); | |
242 | buffer_get_bignum_bits(&b, key->dsa->g); | |
243 | buffer_get_bignum_bits(&b, key->dsa->q); | |
244 | buffer_get_bignum_bits(&b, key->dsa->pub_key); | |
245 | buffer_get_bignum_bits(&b, key->dsa->priv_key); | |
246 | break; | |
247 | case KEY_RSA: | |
2e0becb6 | 248 | e = buffer_get_char(&b); |
249 | debug("e %lx", e); | |
250 | if (e < 30) { | |
251 | e <<= 8; | |
252 | e += buffer_get_char(&b); | |
253 | debug("e %lx", e); | |
254 | e <<= 8; | |
255 | e += buffer_get_char(&b); | |
256 | debug("e %lx", e); | |
257 | } | |
258 | if (!BN_set_word(key->rsa->e, e)) { | |
457fc0c6 | 259 | buffer_free(&b); |
260 | key_free(key); | |
261 | return NULL; | |
262 | } | |
263 | buffer_get_bignum_bits(&b, key->rsa->d); | |
264 | buffer_get_bignum_bits(&b, key->rsa->n); | |
265 | buffer_get_bignum_bits(&b, key->rsa->iqmp); | |
266 | buffer_get_bignum_bits(&b, key->rsa->q); | |
267 | buffer_get_bignum_bits(&b, key->rsa->p); | |
2b63e803 | 268 | rsa_generate_additional_parameters(key->rsa); |
457fc0c6 | 269 | break; |
270 | } | |
94ec8c6b | 271 | rlen = buffer_len(&b); |
272 | if(rlen != 0) | |
457fc0c6 | 273 | error("do_convert_private_ssh2_from_blob: " |
274 | "remaining bytes in key blob %d", rlen); | |
94ec8c6b | 275 | buffer_free(&b); |
a599bd06 | 276 | |
277 | /* try the key */ | |
278 | key_sign(key, &sig, &slen, data, sizeof(data)); | |
279 | key_verify(key, sig, slen, data, sizeof(data)); | |
280 | xfree(sig); | |
94ec8c6b | 281 | return key; |
282 | } | |
283 | ||
396c147e | 284 | static void |
a306f2dd | 285 | do_convert_from_ssh2(struct passwd *pw) |
286 | { | |
287 | Key *k; | |
288 | int blen; | |
289 | char line[1024], *p; | |
290 | char blob[8096]; | |
291 | char encoded[8096]; | |
292 | struct stat st; | |
94ec8c6b | 293 | int escaped = 0, private = 0, ok; |
a306f2dd | 294 | FILE *fp; |
295 | ||
296 | if (!have_identity) | |
297 | ask_filename(pw, "Enter file in which the key is"); | |
298 | if (stat(identity_file, &st) < 0) { | |
299 | perror(identity_file); | |
300 | exit(1); | |
301 | } | |
302 | fp = fopen(identity_file, "r"); | |
303 | if (fp == NULL) { | |
304 | perror(identity_file); | |
305 | exit(1); | |
306 | } | |
307 | encoded[0] = '\0'; | |
308 | while (fgets(line, sizeof(line), fp)) { | |
d0c832f3 | 309 | if (!(p = strchr(line, '\n'))) { |
310 | fprintf(stderr, "input line too long.\n"); | |
311 | exit(1); | |
312 | } | |
313 | if (p > line && p[-1] == '\\') | |
314 | escaped++; | |
a306f2dd | 315 | if (strncmp(line, "----", 4) == 0 || |
316 | strstr(line, ": ") != NULL) { | |
94ec8c6b | 317 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
318 | private = 1; | |
a599bd06 | 319 | if (strstr(line, " END ") != NULL) { |
320 | break; | |
321 | } | |
012bc0e1 | 322 | /* fprintf(stderr, "ignore: %s", line); */ |
a306f2dd | 323 | continue; |
324 | } | |
d0c832f3 | 325 | if (escaped) { |
326 | escaped--; | |
012bc0e1 | 327 | /* fprintf(stderr, "escaped: %s", line); */ |
d0c832f3 | 328 | continue; |
a306f2dd | 329 | } |
330 | *p = '\0'; | |
331 | strlcat(encoded, line, sizeof(encoded)); | |
332 | } | |
1e3b8b07 | 333 | blen = uudecode(encoded, (u_char *)blob, sizeof(blob)); |
a306f2dd | 334 | if (blen < 0) { |
335 | fprintf(stderr, "uudecode failed.\n"); | |
336 | exit(1); | |
337 | } | |
94ec8c6b | 338 | k = private ? |
339 | do_convert_private_ssh2_from_blob(blob, blen) : | |
fa08c86b | 340 | key_from_blob(blob, blen); |
94ec8c6b | 341 | if (k == NULL) { |
342 | fprintf(stderr, "decode blob failed.\n"); | |
343 | exit(1); | |
344 | } | |
345 | ok = private ? | |
457fc0c6 | 346 | (k->type == KEY_DSA ? |
347 | PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, NULL, 0, NULL, NULL) : | |
348 | PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, NULL, 0, NULL, NULL)) : | |
94ec8c6b | 349 | key_write(k, stdout); |
350 | if (!ok) { | |
351 | fprintf(stderr, "key write failed"); | |
352 | exit(1); | |
353 | } | |
a306f2dd | 354 | key_free(k); |
355 | fprintf(stdout, "\n"); | |
356 | fclose(fp); | |
357 | exit(0); | |
358 | } | |
359 | ||
396c147e | 360 | static void |
a306f2dd | 361 | do_print_public(struct passwd *pw) |
362 | { | |
aeaa3d9e | 363 | Key *prv; |
a306f2dd | 364 | struct stat st; |
365 | ||
366 | if (!have_identity) | |
367 | ask_filename(pw, "Enter file in which the key is"); | |
368 | if (stat(identity_file, &st) < 0) { | |
369 | perror(identity_file); | |
370 | exit(1); | |
371 | } | |
abe0fb9f | 372 | prv = load_identity(identity_file); |
aeaa3d9e | 373 | if (prv == NULL) { |
a306f2dd | 374 | fprintf(stderr, "load failed\n"); |
375 | exit(1); | |
376 | } | |
aeaa3d9e | 377 | if (!key_write(prv, stdout)) |
a306f2dd | 378 | fprintf(stderr, "key_write failed"); |
aeaa3d9e | 379 | key_free(prv); |
a306f2dd | 380 | fprintf(stdout, "\n"); |
381 | exit(0); | |
382 | } | |
383 | ||
4f831fd7 | 384 | #ifdef SMARTCARD |
2b30154a | 385 | #define NUM_RSA_KEY_ELEMENTS 5+1 |
386 | #define COPY_RSA_KEY(x, i) \ | |
387 | do { \ | |
388 | len = BN_num_bytes(prv->rsa->x); \ | |
389 | elements[i] = xmalloc(len); \ | |
49ccba9c | 390 | debug("#bytes %d", len); \ |
2b30154a | 391 | if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \ |
392 | goto done; \ | |
393 | } while(0) | |
394 | ||
4f831fd7 | 395 | static int |
396 | get_AUT0(char *aut0) | |
397 | { | |
398 | EVP_MD *evp_md = EVP_sha1(); | |
399 | EVP_MD_CTX md; | |
400 | char *pass; | |
401 | ||
402 | pass = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN); | |
403 | if (pass == NULL) | |
404 | return -1; | |
405 | EVP_DigestInit(&md, evp_md); | |
406 | EVP_DigestUpdate(&md, pass, strlen(pass)); | |
407 | EVP_DigestFinal(&md, aut0, NULL); | |
408 | memset(pass, 0, strlen(pass)); | |
409 | xfree(pass); | |
410 | return 0; | |
411 | } | |
412 | ||
2b30154a | 413 | static void |
93a56445 | 414 | do_upload(struct passwd *pw, const char *sc_reader_id) |
2b30154a | 415 | { |
2b30154a | 416 | Key *prv = NULL; |
417 | struct stat st; | |
418 | u_char *elements[NUM_RSA_KEY_ELEMENTS]; | |
419 | u_char key_fid[2]; | |
4f831fd7 | 420 | u_char DEFAUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63}; |
421 | u_char AUT0[EVP_MAX_MD_SIZE]; | |
2b30154a | 422 | int len, status = 1, i, fd = -1, ret; |
666248da | 423 | int sw = 0, cla = 0x00; |
2b30154a | 424 | |
542d70b8 | 425 | for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) |
426 | elements[i] = NULL; | |
2b30154a | 427 | if (!have_identity) |
428 | ask_filename(pw, "Enter file in which the key is"); | |
429 | if (stat(identity_file, &st) < 0) { | |
430 | perror(identity_file); | |
431 | goto done; | |
432 | } | |
433 | prv = load_identity(identity_file); | |
434 | if (prv == NULL) { | |
435 | error("load failed"); | |
436 | goto done; | |
437 | } | |
2b30154a | 438 | COPY_RSA_KEY(q, 0); |
439 | COPY_RSA_KEY(p, 1); | |
440 | COPY_RSA_KEY(iqmp, 2); | |
441 | COPY_RSA_KEY(dmq1, 3); | |
442 | COPY_RSA_KEY(dmp1, 4); | |
443 | COPY_RSA_KEY(n, 5); | |
444 | len = BN_num_bytes(prv->rsa->n); | |
93a56445 | 445 | fd = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw); |
666248da | 446 | if (fd < 0) { |
93a56445 | 447 | error("sectok_open failed: %s", sectok_get_sw(sw)); |
448 | goto done; | |
449 | } | |
450 | if (! sectok_cardpresent(fd)) { | |
451 | error("smartcard in reader %s not present", | |
452 | sc_reader_id); | |
2b30154a | 453 | goto done; |
666248da | 454 | } |
c42158fe | 455 | ret = sectok_reset(fd, 0, NULL, &sw); |
666248da | 456 | if (ret <= 0) { |
93a56445 | 457 | error("sectok_reset failed: %s", sectok_get_sw(sw)); |
2b30154a | 458 | goto done; |
666248da | 459 | } |
d0bfe096 | 460 | if ((cla = cyberflex_inq_class(fd)) < 0) { |
461 | error("cyberflex_inq_class failed"); | |
462 | goto done; | |
463 | } | |
4f831fd7 | 464 | memcpy(AUT0, DEFAUT0, sizeof(DEFAUT0)); |
465 | if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { | |
466 | if (get_AUT0(AUT0) < 0 || | |
467 | cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { | |
468 | error("cyberflex_verify_AUT0 failed"); | |
469 | goto done; | |
470 | } | |
2b30154a | 471 | } |
472 | key_fid[0] = 0x00; | |
473 | key_fid[1] = 0x12; | |
49ccba9c | 474 | if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements, |
666248da | 475 | &sw) < 0) { |
476 | error("cyberflex_load_rsa_priv failed: %s", sectok_get_sw(sw)); | |
49ccba9c | 477 | goto done; |
478 | } | |
666248da | 479 | if (!sectok_swOK(sw)) |
2b30154a | 480 | goto done; |
481 | log("cyberflex_load_rsa_priv done"); | |
482 | key_fid[0] = 0x73; | |
483 | key_fid[1] = 0x68; | |
49ccba9c | 484 | if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5], |
666248da | 485 | &sw) < 0) { |
486 | error("cyberflex_load_rsa_pub failed: %s", sectok_get_sw(sw)); | |
49ccba9c | 487 | goto done; |
488 | } | |
666248da | 489 | if (!sectok_swOK(sw)) |
2b30154a | 490 | goto done; |
491 | log("cyberflex_load_rsa_pub done"); | |
492 | status = 0; | |
493 | log("loading key done"); | |
494 | done: | |
495 | if (prv) | |
496 | key_free(prv); | |
497 | for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) | |
666248da | 498 | if (elements[i]) |
499 | xfree(elements[i]); | |
2b30154a | 500 | if (fd != -1) |
666248da | 501 | sectok_close(fd); |
2b30154a | 502 | exit(status); |
2b30154a | 503 | } |
93a56445 | 504 | |
505 | static void | |
506 | do_download(struct passwd *pw, const char *sc_reader_id) | |
507 | { | |
508 | Key *pub = NULL; | |
509 | ||
510 | pub = sc_get_key(sc_reader_id); | |
511 | if (pub == NULL) | |
512 | fatal("cannot read public key from smartcard"); | |
513 | key_write(pub, stdout); | |
514 | key_free(pub); | |
515 | fprintf(stdout, "\n"); | |
516 | exit(0); | |
517 | } | |
3e984472 | 518 | #endif /* SMARTCARD */ |
2b30154a | 519 | |
396c147e | 520 | static void |
f095fcc7 | 521 | do_fingerprint(struct passwd *pw) |
522 | { | |
c8d54615 | 523 | FILE *f; |
a306f2dd | 524 | Key *public; |
aaf45d87 | 525 | char *comment = NULL, *cp, *ep, line[16*1024], *fp; |
aeaa3d9e | 526 | int i, skip = 0, num = 1, invalid = 1, rep, fptype; |
5260325f | 527 | struct stat st; |
528 | ||
aeaa3d9e | 529 | fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; |
530 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; | |
aaf45d87 | 531 | |
5260325f | 532 | if (!have_identity) |
533 | ask_filename(pw, "Enter file in which the key is"); | |
534 | if (stat(identity_file, &st) < 0) { | |
535 | perror(identity_file); | |
536 | exit(1); | |
537 | } | |
aeaa3d9e | 538 | public = key_load_public(identity_file, &comment); |
539 | if (public != NULL) { | |
540 | fp = key_fingerprint(public, fptype, rep); | |
541 | printf("%d %s %s\n", key_size(public), fp, comment); | |
a306f2dd | 542 | key_free(public); |
fa08c86b | 543 | xfree(comment); |
aaf45d87 | 544 | xfree(fp); |
c8d54615 | 545 | exit(0); |
546 | } | |
aeaa3d9e | 547 | if (comment) |
548 | xfree(comment); | |
c8d54615 | 549 | |
550 | f = fopen(identity_file, "r"); | |
551 | if (f != NULL) { | |
c8d54615 | 552 | while (fgets(line, sizeof(line), f)) { |
553 | i = strlen(line) - 1; | |
554 | if (line[i] != '\n') { | |
555 | error("line %d too long: %.40s...", num, line); | |
556 | skip = 1; | |
557 | continue; | |
558 | } | |
559 | num++; | |
560 | if (skip) { | |
561 | skip = 0; | |
562 | continue; | |
563 | } | |
564 | line[i] = '\0'; | |
565 | ||
566 | /* Skip leading whitespace, empty and comment lines. */ | |
567 | for (cp = line; *cp == ' ' || *cp == '\t'; cp++) | |
568 | ; | |
569 | if (!*cp || *cp == '\n' || *cp == '#') | |
570 | continue ; | |
571 | i = strtol(cp, &ep, 10); | |
572 | if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) { | |
573 | int quoted = 0; | |
574 | comment = cp; | |
575 | for (; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) { | |
576 | if (*cp == '\\' && cp[1] == '"') | |
577 | cp++; /* Skip both */ | |
578 | else if (*cp == '"') | |
579 | quoted = !quoted; | |
580 | } | |
581 | if (!*cp) | |
582 | continue; | |
583 | *cp++ = '\0'; | |
584 | } | |
585 | ep = cp; | |
efcae5b1 | 586 | public = key_new(KEY_RSA1); |
587 | if (key_read(public, &cp) != 1) { | |
588 | cp = ep; | |
589 | key_free(public); | |
590 | public = key_new(KEY_UNSPEC); | |
591 | if (key_read(public, &cp) != 1) { | |
592 | key_free(public); | |
593 | continue; | |
594 | } | |
5260325f | 595 | } |
efcae5b1 | 596 | comment = *cp ? cp : comment; |
aeaa3d9e | 597 | fp = key_fingerprint(public, fptype, rep); |
aaf45d87 | 598 | printf("%d %s %s\n", key_size(public), fp, |
efcae5b1 | 599 | comment ? comment : "no comment"); |
aaf45d87 | 600 | xfree(fp); |
aeaa3d9e | 601 | key_free(public); |
efcae5b1 | 602 | invalid = 0; |
5260325f | 603 | } |
c8d54615 | 604 | fclose(f); |
605 | } | |
606 | if (invalid) { | |
607 | printf("%s is not a valid key file.\n", identity_file); | |
608 | exit(1); | |
5260325f | 609 | } |
5260325f | 610 | exit(0); |
f095fcc7 | 611 | } |
612 | ||
5260325f | 613 | /* |
614 | * Perform changing a passphrase. The argument is the passwd structure | |
615 | * for the current user. | |
616 | */ | |
396c147e | 617 | static void |
f095fcc7 | 618 | do_change_passphrase(struct passwd *pw) |
619 | { | |
5260325f | 620 | char *comment; |
621 | char *old_passphrase, *passphrase1, *passphrase2; | |
622 | struct stat st; | |
a306f2dd | 623 | Key *private; |
5260325f | 624 | |
625 | if (!have_identity) | |
626 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 627 | if (stat(identity_file, &st) < 0) { |
628 | perror(identity_file); | |
629 | exit(1); | |
630 | } | |
5260325f | 631 | /* Try to load the file with empty passphrase. */ |
aeaa3d9e | 632 | private = key_load_private(identity_file, "", &comment); |
633 | if (private == NULL) { | |
5260325f | 634 | if (identity_passphrase) |
635 | old_passphrase = xstrdup(identity_passphrase); | |
636 | else | |
1843a425 | 637 | old_passphrase = |
638 | read_passphrase("Enter old passphrase: ", | |
639 | RP_ALLOW_STDIN); | |
640 | private = key_load_private(identity_file, old_passphrase, | |
641 | &comment); | |
aeaa3d9e | 642 | memset(old_passphrase, 0, strlen(old_passphrase)); |
643 | xfree(old_passphrase); | |
644 | if (private == NULL) { | |
5260325f | 645 | printf("Bad passphrase.\n"); |
646 | exit(1); | |
647 | } | |
5260325f | 648 | } |
649 | printf("Key has comment '%s'\n", comment); | |
650 | ||
651 | /* Ask the new passphrase (twice). */ | |
652 | if (identity_new_passphrase) { | |
653 | passphrase1 = xstrdup(identity_new_passphrase); | |
654 | passphrase2 = NULL; | |
655 | } else { | |
656 | passphrase1 = | |
1843a425 | 657 | read_passphrase("Enter new passphrase (empty for no " |
658 | "passphrase): ", RP_ALLOW_STDIN); | |
659 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
660 | RP_ALLOW_STDIN); | |
5260325f | 661 | |
662 | /* Verify that they are the same. */ | |
663 | if (strcmp(passphrase1, passphrase2) != 0) { | |
664 | memset(passphrase1, 0, strlen(passphrase1)); | |
665 | memset(passphrase2, 0, strlen(passphrase2)); | |
666 | xfree(passphrase1); | |
667 | xfree(passphrase2); | |
668 | printf("Pass phrases do not match. Try again.\n"); | |
669 | exit(1); | |
670 | } | |
671 | /* Destroy the other copy. */ | |
672 | memset(passphrase2, 0, strlen(passphrase2)); | |
673 | xfree(passphrase2); | |
8efc0c15 | 674 | } |
8efc0c15 | 675 | |
5260325f | 676 | /* Save the file using the new passphrase. */ |
aeaa3d9e | 677 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 678 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 679 | memset(passphrase1, 0, strlen(passphrase1)); |
680 | xfree(passphrase1); | |
a306f2dd | 681 | key_free(private); |
5260325f | 682 | xfree(comment); |
683 | exit(1); | |
684 | } | |
685 | /* Destroy the passphrase and the copy of the key in memory. */ | |
686 | memset(passphrase1, 0, strlen(passphrase1)); | |
687 | xfree(passphrase1); | |
a306f2dd | 688 | key_free(private); /* Destroys contents */ |
5260325f | 689 | xfree(comment); |
690 | ||
691 | printf("Your identification has been saved with the new passphrase.\n"); | |
692 | exit(0); | |
693 | } | |
8efc0c15 | 694 | |
5260325f | 695 | /* |
696 | * Change the comment of a private key file. | |
697 | */ | |
396c147e | 698 | static void |
8efc0c15 | 699 | do_change_comment(struct passwd *pw) |
700 | { | |
1c9a907f | 701 | char new_comment[1024], *comment, *passphrase; |
aeaa3d9e | 702 | Key *private; |
703 | Key *public; | |
5260325f | 704 | struct stat st; |
705 | FILE *f; | |
1c9a907f | 706 | int fd; |
5260325f | 707 | |
708 | if (!have_identity) | |
709 | ask_filename(pw, "Enter file in which the key is"); | |
5260325f | 710 | if (stat(identity_file, &st) < 0) { |
711 | perror(identity_file); | |
712 | exit(1); | |
713 | } | |
aeaa3d9e | 714 | private = key_load_private(identity_file, "", &comment); |
715 | if (private == NULL) { | |
5260325f | 716 | if (identity_passphrase) |
717 | passphrase = xstrdup(identity_passphrase); | |
718 | else if (identity_new_passphrase) | |
719 | passphrase = xstrdup(identity_new_passphrase); | |
720 | else | |
1843a425 | 721 | passphrase = read_passphrase("Enter passphrase: ", |
722 | RP_ALLOW_STDIN); | |
5260325f | 723 | /* Try to load using the passphrase. */ |
aeaa3d9e | 724 | private = key_load_private(identity_file, passphrase, &comment); |
725 | if (private == NULL) { | |
5260325f | 726 | memset(passphrase, 0, strlen(passphrase)); |
727 | xfree(passphrase); | |
728 | printf("Bad passphrase.\n"); | |
729 | exit(1); | |
730 | } | |
aeaa3d9e | 731 | } else { |
732 | passphrase = xstrdup(""); | |
5260325f | 733 | } |
aeaa3d9e | 734 | if (private->type != KEY_RSA1) { |
735 | fprintf(stderr, "Comments are only supported for RSA1 keys.\n"); | |
736 | key_free(private); | |
737 | exit(1); | |
738 | } | |
5260325f | 739 | printf("Key now has comment '%s'\n", comment); |
740 | ||
741 | if (identity_comment) { | |
742 | strlcpy(new_comment, identity_comment, sizeof(new_comment)); | |
743 | } else { | |
744 | printf("Enter new comment: "); | |
745 | fflush(stdout); | |
746 | if (!fgets(new_comment, sizeof(new_comment), stdin)) { | |
747 | memset(passphrase, 0, strlen(passphrase)); | |
a306f2dd | 748 | key_free(private); |
5260325f | 749 | exit(1); |
750 | } | |
5260325f | 751 | if (strchr(new_comment, '\n')) |
752 | *strchr(new_comment, '\n') = 0; | |
753 | } | |
754 | ||
755 | /* Save the file using the new passphrase. */ | |
aeaa3d9e | 756 | if (!key_save_private(private, identity_file, passphrase, new_comment)) { |
58cfa257 | 757 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 758 | memset(passphrase, 0, strlen(passphrase)); |
759 | xfree(passphrase); | |
a306f2dd | 760 | key_free(private); |
5260325f | 761 | xfree(comment); |
762 | exit(1); | |
8efc0c15 | 763 | } |
5260325f | 764 | memset(passphrase, 0, strlen(passphrase)); |
765 | xfree(passphrase); | |
aeaa3d9e | 766 | public = key_from_private(private); |
a306f2dd | 767 | key_free(private); |
5260325f | 768 | |
5260325f | 769 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 770 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
771 | if (fd == -1) { | |
5260325f | 772 | printf("Could not save your public key in %s\n", identity_file); |
773 | exit(1); | |
774 | } | |
1c9a907f | 775 | f = fdopen(fd, "w"); |
776 | if (f == NULL) { | |
777 | printf("fdopen %s failed", identity_file); | |
778 | exit(1); | |
779 | } | |
a306f2dd | 780 | if (!key_write(public, f)) |
781 | fprintf(stderr, "write key failed"); | |
782 | key_free(public); | |
783 | fprintf(f, " %s\n", new_comment); | |
5260325f | 784 | fclose(f); |
785 | ||
786 | xfree(comment); | |
787 | ||
788 | printf("The comment in your key file has been changed.\n"); | |
789 | exit(0); | |
8efc0c15 | 790 | } |
791 | ||
396c147e | 792 | static void |
5ad13cd7 | 793 | usage(void) |
794 | { | |
58153e34 | 795 | fprintf(stderr, "Usage: %s [options]\n", __progname); |
796 | fprintf(stderr, "Options:\n"); | |
797 | fprintf(stderr, " -b bits Number of bits in the key to create.\n"); | |
798 | fprintf(stderr, " -c Change comment in private and public key files.\n"); | |
799 | fprintf(stderr, " -e Convert OpenSSH to IETF SECSH key file.\n"); | |
800 | fprintf(stderr, " -f filename Filename of the key file.\n"); | |
801 | fprintf(stderr, " -i Convert IETF SECSH to OpenSSH key file.\n"); | |
802 | fprintf(stderr, " -l Show fingerprint of key file.\n"); | |
803 | fprintf(stderr, " -p Change passphrase of private key file.\n"); | |
804 | fprintf(stderr, " -q Quiet.\n"); | |
805 | fprintf(stderr, " -y Read private key file and print public key.\n"); | |
806 | fprintf(stderr, " -t type Specify type of key to create.\n"); | |
807 | fprintf(stderr, " -B Show bubblebabble digest of key file.\n"); | |
808 | fprintf(stderr, " -C comment Provide new comment.\n"); | |
809 | fprintf(stderr, " -N phrase Provide new passphrase.\n"); | |
810 | fprintf(stderr, " -P phrase Provide old passphrase.\n"); | |
811 | #ifdef SMARTCARD | |
812 | fprintf(stderr, " -D reader Download public key from smartcard.\n"); | |
813 | fprintf(stderr, " -U reader Upload private key to smartcard.\n"); | |
814 | #endif /* SMARTCARD */ | |
815 | ||
5260325f | 816 | exit(1); |
5ad13cd7 | 817 | } |
818 | ||
5260325f | 819 | /* |
820 | * Main program for key management. | |
821 | */ | |
8efc0c15 | 822 | int |
823 | main(int ac, char **av) | |
824 | { | |
5260325f | 825 | char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2; |
93a56445 | 826 | char *reader_id = NULL; |
1c9a907f | 827 | Key *private, *public; |
5260325f | 828 | struct passwd *pw; |
5260325f | 829 | struct stat st; |
93a56445 | 830 | int opt, type, fd, download = 0; |
5260325f | 831 | FILE *f; |
fa08c86b | 832 | |
5260325f | 833 | extern int optind; |
834 | extern char *optarg; | |
835 | ||
260d427b | 836 | __progname = get_progname(av[0]); |
264dce47 | 837 | init_rng(); |
e339aa53 | 838 | seed_rng(); |
264dce47 | 839 | |
fa649821 | 840 | SSLeay_add_all_algorithms(); |
a306f2dd | 841 | |
aa3378df | 842 | /* we need this for the home * directory. */ |
5260325f | 843 | pw = getpwuid(getuid()); |
844 | if (!pw) { | |
845 | printf("You don't exist, go away!\n"); | |
846 | exit(1); | |
847 | } | |
a306f2dd | 848 | if (gethostname(hostname, sizeof(hostname)) < 0) { |
849 | perror("gethostname"); | |
850 | exit(1); | |
851 | } | |
aa3378df | 852 | |
285d2b15 | 853 | while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:U:D:P:N:C:")) != -1) { |
5260325f | 854 | switch (opt) { |
855 | case 'b': | |
856 | bits = atoi(optarg); | |
857 | if (bits < 512 || bits > 32768) { | |
858 | printf("Bits has bad value.\n"); | |
859 | exit(1); | |
860 | } | |
861 | break; | |
5260325f | 862 | case 'l': |
863 | print_fingerprint = 1; | |
864 | break; | |
aaf45d87 | 865 | case 'B': |
866 | print_bubblebabble = 1; | |
867 | break; | |
5260325f | 868 | case 'p': |
869 | change_passphrase = 1; | |
870 | break; | |
5260325f | 871 | case 'c': |
872 | change_comment = 1; | |
873 | break; | |
5260325f | 874 | case 'f': |
875 | strlcpy(identity_file, optarg, sizeof(identity_file)); | |
876 | have_identity = 1; | |
877 | break; | |
5260325f | 878 | case 'P': |
879 | identity_passphrase = optarg; | |
880 | break; | |
5260325f | 881 | case 'N': |
882 | identity_new_passphrase = optarg; | |
883 | break; | |
5260325f | 884 | case 'C': |
885 | identity_comment = optarg; | |
886 | break; | |
5260325f | 887 | case 'q': |
888 | quiet = 1; | |
889 | break; | |
a306f2dd | 890 | case 'R': |
fa08c86b | 891 | /* unused */ |
892 | exit(0); | |
a306f2dd | 893 | break; |
5deceabb | 894 | case 'e': |
a306f2dd | 895 | case 'x': |
5deceabb | 896 | /* export key */ |
a306f2dd | 897 | convert_to_ssh2 = 1; |
898 | break; | |
5deceabb | 899 | case 'i': |
a306f2dd | 900 | case 'X': |
5deceabb | 901 | /* import key */ |
a306f2dd | 902 | convert_from_ssh2 = 1; |
903 | break; | |
a306f2dd | 904 | case 'y': |
905 | print_public = 1; | |
906 | break; | |
a306f2dd | 907 | case 'd': |
fa08c86b | 908 | key_type_name = "dsa"; |
a306f2dd | 909 | break; |
fa08c86b | 910 | case 't': |
911 | key_type_name = optarg; | |
fa08c86b | 912 | break; |
93a56445 | 913 | case 'D': |
914 | download = 1; | |
285d2b15 | 915 | case 'U': |
93a56445 | 916 | reader_id = optarg; |
2b30154a | 917 | break; |
5260325f | 918 | case '?': |
919 | default: | |
920 | usage(); | |
921 | } | |
922 | } | |
923 | if (optind < ac) { | |
924 | printf("Too many arguments.\n"); | |
925 | usage(); | |
926 | } | |
927 | if (change_passphrase && change_comment) { | |
928 | printf("Can only have one of -p and -c.\n"); | |
929 | usage(); | |
930 | } | |
aaf45d87 | 931 | if (print_fingerprint || print_bubblebabble) |
5260325f | 932 | do_fingerprint(pw); |
5260325f | 933 | if (change_passphrase) |
934 | do_change_passphrase(pw); | |
5260325f | 935 | if (change_comment) |
936 | do_change_comment(pw); | |
a306f2dd | 937 | if (convert_to_ssh2) |
938 | do_convert_to_ssh2(pw); | |
939 | if (convert_from_ssh2) | |
940 | do_convert_from_ssh2(pw); | |
941 | if (print_public) | |
942 | do_print_public(pw); | |
93a56445 | 943 | if (reader_id != NULL) { |
4f831fd7 | 944 | #ifdef SMARTCARD |
93a56445 | 945 | if (download) |
946 | do_download(pw, reader_id); | |
947 | else | |
948 | do_upload(pw, reader_id); | |
3e984472 | 949 | #else /* SMARTCARD */ |
4f831fd7 | 950 | fatal("no support for smartcards."); |
3e984472 | 951 | #endif /* SMARTCARD */ |
93a56445 | 952 | } |
5260325f | 953 | |
954 | arc4random_stir(); | |
955 | ||
c523303b | 956 | type = key_type_from_name(key_type_name); |
957 | if (type == KEY_UNSPEC) { | |
958 | fprintf(stderr, "unknown key type %s\n", key_type_name); | |
959 | exit(1); | |
a306f2dd | 960 | } |
fa08c86b | 961 | if (!quiet) |
c523303b | 962 | printf("Generating public/private %s key pair.\n", key_type_name); |
fa08c86b | 963 | private = key_generate(type, bits); |
964 | if (private == NULL) { | |
965 | fprintf(stderr, "key_generate failed"); | |
966 | exit(1); | |
967 | } | |
968 | public = key_from_private(private); | |
5260325f | 969 | |
970 | if (!have_identity) | |
971 | ask_filename(pw, "Enter file in which to save the key"); | |
972 | ||
973 | /* Create ~/.ssh directory if it doesn\'t already exist. */ | |
42f11eb2 | 974 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR); |
5260325f | 975 | if (strstr(identity_file, dotsshdir) != NULL && |
976 | stat(dotsshdir, &st) < 0) { | |
704b1659 | 977 | if (mkdir(dotsshdir, 0700) < 0) |
5260325f | 978 | error("Could not create directory '%s'.", dotsshdir); |
979 | else if (!quiet) | |
980 | printf("Created directory '%s'.\n", dotsshdir); | |
981 | } | |
982 | /* If the file already exists, ask the user to confirm. */ | |
983 | if (stat(identity_file, &st) >= 0) { | |
984 | char yesno[3]; | |
985 | printf("%s already exists.\n", identity_file); | |
986 | printf("Overwrite (y/n)? "); | |
987 | fflush(stdout); | |
988 | if (fgets(yesno, sizeof(yesno), stdin) == NULL) | |
989 | exit(1); | |
990 | if (yesno[0] != 'y' && yesno[0] != 'Y') | |
991 | exit(1); | |
992 | } | |
993 | /* Ask for a passphrase (twice). */ | |
994 | if (identity_passphrase) | |
995 | passphrase1 = xstrdup(identity_passphrase); | |
996 | else if (identity_new_passphrase) | |
997 | passphrase1 = xstrdup(identity_new_passphrase); | |
998 | else { | |
999 | passphrase_again: | |
1000 | passphrase1 = | |
1843a425 | 1001 | read_passphrase("Enter passphrase (empty for no " |
1002 | "passphrase): ", RP_ALLOW_STDIN); | |
1003 | passphrase2 = read_passphrase("Enter same passphrase again: ", | |
1004 | RP_ALLOW_STDIN); | |
5260325f | 1005 | if (strcmp(passphrase1, passphrase2) != 0) { |
1843a425 | 1006 | /* |
1007 | * The passphrases do not match. Clear them and | |
1008 | * retry. | |
1009 | */ | |
5260325f | 1010 | memset(passphrase1, 0, strlen(passphrase1)); |
1011 | memset(passphrase2, 0, strlen(passphrase2)); | |
1012 | xfree(passphrase1); | |
1013 | xfree(passphrase2); | |
1014 | printf("Passphrases do not match. Try again.\n"); | |
1015 | goto passphrase_again; | |
1016 | } | |
1017 | /* Clear the other copy of the passphrase. */ | |
1018 | memset(passphrase2, 0, strlen(passphrase2)); | |
1019 | xfree(passphrase2); | |
1020 | } | |
1021 | ||
5260325f | 1022 | if (identity_comment) { |
1023 | strlcpy(comment, identity_comment, sizeof(comment)); | |
1024 | } else { | |
6ae2364d | 1025 | /* Create default commend field for the passphrase. */ |
5260325f | 1026 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
1027 | } | |
1028 | ||
1029 | /* Save the key with the given passphrase and comment. */ | |
aeaa3d9e | 1030 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
58cfa257 | 1031 | printf("Saving the key failed: %s.\n", identity_file); |
5260325f | 1032 | memset(passphrase1, 0, strlen(passphrase1)); |
1033 | xfree(passphrase1); | |
1034 | exit(1); | |
1035 | } | |
1036 | /* Clear the passphrase. */ | |
1037 | memset(passphrase1, 0, strlen(passphrase1)); | |
1038 | xfree(passphrase1); | |
1039 | ||
1040 | /* Clear the private key and the random number generator. */ | |
fa08c86b | 1041 | key_free(private); |
5260325f | 1042 | arc4random_stir(); |
1043 | ||
1044 | if (!quiet) | |
1045 | printf("Your identification has been saved in %s.\n", identity_file); | |
1046 | ||
5260325f | 1047 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
1c9a907f | 1048 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
1049 | if (fd == -1) { | |
5260325f | 1050 | printf("Could not save your public key in %s\n", identity_file); |
1051 | exit(1); | |
1052 | } | |
1c9a907f | 1053 | f = fdopen(fd, "w"); |
1054 | if (f == NULL) { | |
1055 | printf("fdopen %s failed", identity_file); | |
1056 | exit(1); | |
1057 | } | |
a306f2dd | 1058 | if (!key_write(public, f)) |
1059 | fprintf(stderr, "write key failed"); | |
1060 | fprintf(f, " %s\n", comment); | |
5260325f | 1061 | fclose(f); |
1062 | ||
1063 | if (!quiet) { | |
22138a36 | 1064 | char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX); |
a306f2dd | 1065 | printf("Your public key has been saved in %s.\n", |
1066 | identity_file); | |
5260325f | 1067 | printf("The key fingerprint is:\n"); |
22138a36 | 1068 | printf("%s %s\n", fp, comment); |
1069 | xfree(fp); | |
8efc0c15 | 1070 | } |
a306f2dd | 1071 | |
1072 | key_free(public); | |
5260325f | 1073 | exit(0); |
8efc0c15 | 1074 | } |