Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 3 | * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 5 | * Identity and host key generation and maintenance. |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 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". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 12 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 13 | |
| 14 | #include "includes.h" |
Ben Lindstrom | 97be31e | 2001-08-06 21:49:06 +0000 | [diff] [blame] | 15 | RCSID("$OpenBSD: ssh-keygen.c,v 1.77 2001/08/02 15:06:52 jakob Exp $"); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 16 | |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 17 | #include <openssl/evp.h> |
| 18 | #include <openssl/pem.h> |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 19 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 20 | #include "xmalloc.h" |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 21 | #include "key.h" |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 22 | #include "rsa.h" |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 23 | #include "authfile.h" |
| 24 | #include "uuencode.h" |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 25 | #include "buffer.h" |
| 26 | #include "bufaux.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 27 | #include "pathnames.h" |
| 28 | #include "log.h" |
| 29 | #include "readpass.h" |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 30 | |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 31 | #ifdef SMARTCARD |
| 32 | #include <sectok.h> |
| 33 | #include <openssl/engine.h> |
| 34 | #include "scard.h" |
| 35 | #endif |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 36 | |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 37 | /* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 38 | int bits = 1024; |
| 39 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 40 | /* |
| 41 | * Flag indicating that we just want to change the passphrase. This can be |
| 42 | * set on the command line. |
| 43 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 44 | int change_passphrase = 0; |
| 45 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 46 | /* |
| 47 | * Flag indicating that we just want to change the comment. This can be set |
| 48 | * on the command line. |
| 49 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 50 | int change_comment = 0; |
| 51 | |
| 52 | int quiet = 0; |
| 53 | |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 54 | /* Flag indicating that we just want to see the key fingerprint */ |
| 55 | int print_fingerprint = 0; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 56 | int print_bubblebabble = 0; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 57 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 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; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 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 | |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 75 | |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 76 | /* default to RSA for SSH-1 */ |
| 77 | char *key_type_name = "rsa1"; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 78 | |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 79 | /* argv0 */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 80 | #ifdef HAVE___PROGNAME |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 81 | extern char *__progname; |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 82 | #else |
| 83 | char *__progname; |
| 84 | #endif |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 85 | |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 86 | char hostname[MAXHOSTNAMELEN]; |
| 87 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 88 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 89 | ask_filename(struct passwd *pw, const char *prompt) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 90 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 91 | char buf[1024]; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 92 | char *name = NULL; |
| 93 | |
| 94 | switch (key_type_from_name(key_type_name)) { |
| 95 | case KEY_RSA1: |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 96 | name = _PATH_SSH_CLIENT_IDENTITY; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 97 | break; |
| 98 | case KEY_DSA: |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 99 | name = _PATH_SSH_CLIENT_ID_DSA; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 100 | break; |
| 101 | case KEY_RSA: |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 102 | name = _PATH_SSH_CLIENT_ID_RSA; |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 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); |
Ben Lindstrom | 3deda8b | 2000-12-22 20:27:43 +0000 | [diff] [blame] | 110 | fprintf(stderr, "%s (%s): ", prompt, identity_file); |
| 111 | fflush(stderr); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 119 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 120 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 121 | static Key * |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 122 | load_identity(char *filename) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 123 | { |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 124 | char *pass; |
| 125 | Key *prv; |
| 126 | |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 127 | prv = key_load_private(filename, "", NULL); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 128 | if (prv == NULL) { |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 129 | if (identity_passphrase) |
| 130 | pass = xstrdup(identity_passphrase); |
| 131 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 132 | pass = read_passphrase("Enter passphrase: ", |
| 133 | RP_ALLOW_STDIN); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 134 | prv = key_load_private(filename, pass, NULL); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 135 | memset(pass, 0, strlen(pass)); |
| 136 | xfree(pass); |
| 137 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 138 | return prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 139 | } |
| 140 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 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 ----" |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 144 | #define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 145 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 146 | static void |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 147 | do_convert_to_ssh2(struct passwd *pw) |
| 148 | { |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 149 | Key *k; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 150 | int len; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 151 | u_char *blob; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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 | } |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 160 | if ((k = key_load_public(identity_file, NULL)) == NULL) { |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 161 | if ((k = load_identity(identity_file)) == NULL) { |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 162 | fprintf(stderr, "load failed\n"); |
| 163 | exit(1); |
| 164 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 165 | } |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 166 | key_to_blob(k, &blob, &len); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 167 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 168 | fprintf(stdout, |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 169 | "Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 170 | key_size(k), key_type(k), |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 171 | pw->pw_name, hostname); |
| 172 | dump_base64(stdout, blob, len); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 173 | fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
Ben Lindstrom | 46c264f | 2001-04-24 16:56:58 +0000 | [diff] [blame] | 174 | key_free(k); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 175 | xfree(blob); |
| 176 | exit(0); |
| 177 | } |
| 178 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 179 | static void |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 180 | buffer_get_bignum_bits(Buffer *b, BIGNUM *value) |
| 181 | { |
| 182 | int bits = buffer_get_int(b); |
| 183 | int bytes = (bits + 7) / 8; |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 184 | |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 185 | if (buffer_len(b) < bytes) |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 186 | fatal("buffer_get_bignum_bits: input buffer too small: " |
| 187 | "need %d have %d", bytes, buffer_len(b)); |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 188 | BN_bin2bn((u_char *)buffer_ptr(b), bytes, value); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 189 | buffer_consume(b, bytes); |
| 190 | } |
| 191 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 192 | static Key * |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 193 | do_convert_private_ssh2_from_blob(char *blob, int blen) |
| 194 | { |
| 195 | Buffer b; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 196 | Key *key = NULL; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 197 | char *type, *cipher; |
Ben Lindstrom | 511d69e | 2001-07-04 05:05:27 +0000 | [diff] [blame] | 198 | u_char *sig, data[] = "abcde12345"; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 199 | int magic, rlen, ktype, i1, i2, i3, i4; |
| 200 | u_int slen; |
| 201 | u_long e; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 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 | } |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 212 | i1 = buffer_get_int(&b); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 213 | type = buffer_get_string(&b, NULL); |
| 214 | cipher = buffer_get_string(&b, NULL); |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 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); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 219 | if (strcmp(cipher, "none") != 0) { |
| 220 | error("unsupported cipher %s", cipher); |
| 221 | xfree(cipher); |
| 222 | buffer_free(&b); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 223 | xfree(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 224 | return NULL; |
| 225 | } |
| 226 | xfree(cipher); |
| 227 | |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 228 | if (strstr(type, "dsa")) { |
| 229 | ktype = KEY_DSA; |
| 230 | } else if (strstr(type, "rsa")) { |
| 231 | ktype = KEY_RSA; |
| 232 | } else { |
| 233 | xfree(type); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 234 | return NULL; |
| 235 | } |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 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: |
Ben Lindstrom | 34f9188 | 2001-06-25 04:47:54 +0000 | [diff] [blame] | 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)) { |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 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); |
Ben Lindstrom | f7297dd | 2001-07-04 05:02:23 +0000 | [diff] [blame] | 268 | rsa_generate_additional_parameters(key->rsa); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 269 | break; |
| 270 | } |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 271 | rlen = buffer_len(&b); |
| 272 | if(rlen != 0) |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 273 | error("do_convert_private_ssh2_from_blob: " |
| 274 | "remaining bytes in key blob %d", rlen); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 275 | buffer_free(&b); |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 276 | |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 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); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 281 | return key; |
| 282 | } |
| 283 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 284 | static void |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 293 | int escaped = 0, private = 0, ok; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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)) { |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 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++; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 315 | if (strncmp(line, "----", 4) == 0 || |
| 316 | strstr(line, ": ") != NULL) { |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 317 | if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL) |
| 318 | private = 1; |
Ben Lindstrom | e586c4c | 2001-06-25 05:04:58 +0000 | [diff] [blame] | 319 | if (strstr(line, " END ") != NULL) { |
| 320 | break; |
| 321 | } |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 322 | /* fprintf(stderr, "ignore: %s", line); */ |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 323 | continue; |
| 324 | } |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 325 | if (escaped) { |
| 326 | escaped--; |
Ben Lindstrom | 3035860 | 2001-04-24 16:59:28 +0000 | [diff] [blame] | 327 | /* fprintf(stderr, "escaped: %s", line); */ |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 328 | continue; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 329 | } |
| 330 | *p = '\0'; |
| 331 | strlcat(encoded, line, sizeof(encoded)); |
| 332 | } |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 333 | blen = uudecode(encoded, (u_char *)blob, sizeof(blob)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 334 | if (blen < 0) { |
| 335 | fprintf(stderr, "uudecode failed.\n"); |
| 336 | exit(1); |
| 337 | } |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 338 | k = private ? |
| 339 | do_convert_private_ssh2_from_blob(blob, blen) : |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 340 | key_from_blob(blob, blen); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 341 | if (k == NULL) { |
| 342 | fprintf(stderr, "decode blob failed.\n"); |
| 343 | exit(1); |
| 344 | } |
| 345 | ok = private ? |
Ben Lindstrom | d09fcf5 | 2001-03-29 00:29:54 +0000 | [diff] [blame] | 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)) : |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 349 | key_write(k, stdout); |
| 350 | if (!ok) { |
| 351 | fprintf(stderr, "key write failed"); |
| 352 | exit(1); |
| 353 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 354 | key_free(k); |
| 355 | fprintf(stdout, "\n"); |
| 356 | fclose(fp); |
| 357 | exit(0); |
| 358 | } |
| 359 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 360 | static void |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 361 | do_print_public(struct passwd *pw) |
| 362 | { |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 363 | Key *prv; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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 | } |
Ben Lindstrom | d78ae76 | 2001-06-05 20:35:09 +0000 | [diff] [blame] | 372 | prv = load_identity(identity_file); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 373 | if (prv == NULL) { |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 374 | fprintf(stderr, "load failed\n"); |
| 375 | exit(1); |
| 376 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 377 | if (!key_write(prv, stdout)) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 378 | fprintf(stderr, "key_write failed"); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 379 | key_free(prv); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 380 | fprintf(stdout, "\n"); |
| 381 | exit(0); |
| 382 | } |
| 383 | |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 384 | #ifdef SMARTCARD |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 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); \ |
Ben Lindstrom | 7feba35 | 2001-07-04 05:06:59 +0000 | [diff] [blame] | 390 | debug("#bytes %d", len); \ |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 391 | if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \ |
| 392 | goto done; \ |
| 393 | } while(0) |
| 394 | |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 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 | |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 413 | static void |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 414 | do_upload(struct passwd *pw, const char *sc_reader_id) |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 415 | { |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 416 | Key *prv = NULL; |
| 417 | struct stat st; |
| 418 | u_char *elements[NUM_RSA_KEY_ELEMENTS]; |
| 419 | u_char key_fid[2]; |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 420 | u_char DEFAUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63}; |
| 421 | u_char AUT0[EVP_MAX_MD_SIZE]; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 422 | int len, status = 1, i, fd = -1, ret; |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 423 | int sw = 0, cla = 0x00; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 424 | |
Ben Lindstrom | d6e049c | 2001-07-04 05:08:39 +0000 | [diff] [blame] | 425 | for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) |
| 426 | elements[i] = NULL; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 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 | } |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 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); |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 445 | fd = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw); |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 446 | if (fd < 0) { |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 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); |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 453 | goto done; |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 454 | } |
Ben Lindstrom | 60df8e4 | 2001-08-06 21:10:52 +0000 | [diff] [blame] | 455 | ret = sectok_reset(fd, 0, NULL, &sw); |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 456 | if (ret <= 0) { |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 457 | error("sectok_reset failed: %s", sectok_get_sw(sw)); |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 458 | goto done; |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 459 | } |
Ben Lindstrom | 680b276 | 2001-07-04 05:00:11 +0000 | [diff] [blame] | 460 | if ((cla = cyberflex_inq_class(fd)) < 0) { |
| 461 | error("cyberflex_inq_class failed"); |
| 462 | goto done; |
| 463 | } |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 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 | } |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 471 | } |
| 472 | key_fid[0] = 0x00; |
| 473 | key_fid[1] = 0x12; |
Ben Lindstrom | 7feba35 | 2001-07-04 05:06:59 +0000 | [diff] [blame] | 474 | if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements, |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 475 | &sw) < 0) { |
| 476 | error("cyberflex_load_rsa_priv failed: %s", sectok_get_sw(sw)); |
Ben Lindstrom | 7feba35 | 2001-07-04 05:06:59 +0000 | [diff] [blame] | 477 | goto done; |
| 478 | } |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 479 | if (!sectok_swOK(sw)) |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 480 | goto done; |
| 481 | log("cyberflex_load_rsa_priv done"); |
| 482 | key_fid[0] = 0x73; |
| 483 | key_fid[1] = 0x68; |
Ben Lindstrom | 7feba35 | 2001-07-04 05:06:59 +0000 | [diff] [blame] | 484 | if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5], |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 485 | &sw) < 0) { |
| 486 | error("cyberflex_load_rsa_pub failed: %s", sectok_get_sw(sw)); |
Ben Lindstrom | 7feba35 | 2001-07-04 05:06:59 +0000 | [diff] [blame] | 487 | goto done; |
| 488 | } |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 489 | if (!sectok_swOK(sw)) |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 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++) |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 498 | if (elements[i]) |
| 499 | xfree(elements[i]); |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 500 | if (fd != -1) |
Ben Lindstrom | 0047764 | 2001-07-04 05:24:27 +0000 | [diff] [blame] | 501 | sectok_close(fd); |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 502 | exit(status); |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 503 | } |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 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 | } |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 518 | #endif |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 519 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 520 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 521 | do_fingerprint(struct passwd *pw) |
| 522 | { |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 523 | FILE *f; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 524 | Key *public; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 525 | char *comment = NULL, *cp, *ep, line[16*1024], *fp; |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 526 | int i, skip = 0, num = 1, invalid = 1, rep, fptype; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 527 | struct stat st; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 528 | |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 529 | fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; |
| 530 | rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 531 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 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); |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 542 | key_free(public); |
| 543 | xfree(comment); |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 544 | xfree(fp); |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 545 | exit(0); |
| 546 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 547 | if (comment) |
| 548 | xfree(comment); |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 549 | |
| 550 | f = fopen(identity_file, "r"); |
| 551 | if (f != NULL) { |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 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; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 558 | } |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 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; |
Ben Lindstrom | 2941f11 | 2000-12-29 16:50:13 +0000 | [diff] [blame] | 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 | } |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 595 | } |
Ben Lindstrom | 2941f11 | 2000-12-29 16:50:13 +0000 | [diff] [blame] | 596 | comment = *cp ? cp : comment; |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 597 | fp = key_fingerprint(public, fptype, rep); |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 598 | printf("%d %s %s\n", key_size(public), fp, |
Ben Lindstrom | 2941f11 | 2000-12-29 16:50:13 +0000 | [diff] [blame] | 599 | comment ? comment : "no comment"); |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 600 | xfree(fp); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 601 | key_free(public); |
Ben Lindstrom | 2941f11 | 2000-12-29 16:50:13 +0000 | [diff] [blame] | 602 | invalid = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 603 | } |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 604 | fclose(f); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 605 | } |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 606 | if (invalid) { |
| 607 | printf("%s is not a valid key file.\n", identity_file); |
| 608 | exit(1); |
| 609 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 610 | exit(0); |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 611 | } |
| 612 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 613 | /* |
| 614 | * Perform changing a passphrase. The argument is the passwd structure |
| 615 | * for the current user. |
| 616 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 617 | static void |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 618 | do_change_passphrase(struct passwd *pw) |
| 619 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 620 | char *comment; |
| 621 | char *old_passphrase, *passphrase1, *passphrase2; |
| 622 | struct stat st; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 623 | Key *private; |
Damien Miller | 10f6f6b | 1999-11-17 17:29:08 +1100 | [diff] [blame] | 624 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 625 | if (!have_identity) |
| 626 | ask_filename(pw, "Enter file in which the key is"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 627 | if (stat(identity_file, &st) < 0) { |
| 628 | perror(identity_file); |
| 629 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 630 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 631 | /* Try to load the file with empty passphrase. */ |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 632 | private = key_load_private(identity_file, "", &comment); |
| 633 | if (private == NULL) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 634 | if (identity_passphrase) |
| 635 | old_passphrase = xstrdup(identity_passphrase); |
| 636 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 637 | old_passphrase = |
| 638 | read_passphrase("Enter old passphrase: ", |
| 639 | RP_ALLOW_STDIN); |
| 640 | private = key_load_private(identity_file, old_passphrase, |
| 641 | &comment); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 642 | memset(old_passphrase, 0, strlen(old_passphrase)); |
| 643 | xfree(old_passphrase); |
| 644 | if (private == NULL) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 645 | printf("Bad passphrase.\n"); |
| 646 | exit(1); |
| 647 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 648 | } |
| 649 | printf("Key has comment '%s'\n", comment); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 650 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 651 | /* Ask the new passphrase (twice). */ |
| 652 | if (identity_new_passphrase) { |
| 653 | passphrase1 = xstrdup(identity_new_passphrase); |
| 654 | passphrase2 = NULL; |
| 655 | } else { |
| 656 | passphrase1 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 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); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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); |
| 674 | } |
| 675 | |
| 676 | /* Save the file using the new passphrase. */ |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 677 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
Ben Lindstrom | 15f3386 | 2001-04-16 02:00:02 +0000 | [diff] [blame] | 678 | printf("Saving the key failed: %s.\n", identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 679 | memset(passphrase1, 0, strlen(passphrase1)); |
| 680 | xfree(passphrase1); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 681 | key_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 688 | key_free(private); /* Destroys contents */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 689 | xfree(comment); |
| 690 | |
| 691 | printf("Your identification has been saved with the new passphrase.\n"); |
| 692 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 693 | } |
| 694 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 695 | /* |
| 696 | * Change the comment of a private key file. |
| 697 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 698 | static void |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 699 | do_change_comment(struct passwd *pw) |
| 700 | { |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 701 | char new_comment[1024], *comment, *passphrase; |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 702 | Key *private; |
| 703 | Key *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 704 | struct stat st; |
| 705 | FILE *f; |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 706 | int fd; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 707 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 708 | if (!have_identity) |
| 709 | ask_filename(pw, "Enter file in which the key is"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 710 | if (stat(identity_file, &st) < 0) { |
| 711 | perror(identity_file); |
| 712 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 713 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 714 | private = key_load_private(identity_file, "", &comment); |
| 715 | if (private == NULL) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 716 | if (identity_passphrase) |
| 717 | passphrase = xstrdup(identity_passphrase); |
| 718 | else if (identity_new_passphrase) |
| 719 | passphrase = xstrdup(identity_new_passphrase); |
| 720 | else |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 721 | passphrase = read_passphrase("Enter passphrase: ", |
| 722 | RP_ALLOW_STDIN); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 723 | /* Try to load using the passphrase. */ |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 724 | private = key_load_private(identity_file, passphrase, &comment); |
| 725 | if (private == NULL) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 726 | memset(passphrase, 0, strlen(passphrase)); |
| 727 | xfree(passphrase); |
| 728 | printf("Bad passphrase.\n"); |
| 729 | exit(1); |
| 730 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 731 | } else { |
| 732 | passphrase = xstrdup(""); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 733 | } |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 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 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 739 | printf("Key now has comment '%s'\n", comment); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 740 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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)); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 748 | key_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 749 | exit(1); |
| 750 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 751 | if (strchr(new_comment, '\n')) |
| 752 | *strchr(new_comment, '\n') = 0; |
| 753 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 754 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 755 | /* Save the file using the new passphrase. */ |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 756 | if (!key_save_private(private, identity_file, passphrase, new_comment)) { |
Ben Lindstrom | 15f3386 | 2001-04-16 02:00:02 +0000 | [diff] [blame] | 757 | printf("Saving the key failed: %s.\n", identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 758 | memset(passphrase, 0, strlen(passphrase)); |
| 759 | xfree(passphrase); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 760 | key_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 761 | xfree(comment); |
| 762 | exit(1); |
| 763 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 764 | memset(passphrase, 0, strlen(passphrase)); |
| 765 | xfree(passphrase); |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 766 | public = key_from_private(private); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 767 | key_free(private); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 768 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 769 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 770 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
| 771 | if (fd == -1) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 772 | printf("Could not save your public key in %s\n", identity_file); |
| 773 | exit(1); |
| 774 | } |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 775 | f = fdopen(fd, "w"); |
| 776 | if (f == NULL) { |
| 777 | printf("fdopen %s failed", identity_file); |
| 778 | exit(1); |
| 779 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 780 | if (!key_write(public, f)) |
| 781 | fprintf(stderr, "write key failed"); |
| 782 | key_free(public); |
| 783 | fprintf(f, " %s\n", new_comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 784 | fclose(f); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 785 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 786 | xfree(comment); |
| 787 | |
| 788 | printf("The comment in your key file has been changed.\n"); |
| 789 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 790 | } |
| 791 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 792 | static void |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 793 | usage(void) |
| 794 | { |
Ben Lindstrom | 97be31e | 2001-08-06 21:49:06 +0000 | [diff] [blame] | 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 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 816 | exit(1); |
Damien Miller | 431f66b | 1999-11-21 18:31:57 +1100 | [diff] [blame] | 817 | } |
| 818 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 819 | /* |
| 820 | * Main program for key management. |
| 821 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 822 | int |
| 823 | main(int ac, char **av) |
| 824 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 825 | char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 826 | char *reader_id = NULL; |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 827 | Key *private, *public; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 828 | struct passwd *pw; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 829 | struct stat st; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 830 | int opt, type, fd, download = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 831 | FILE *f; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 832 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 833 | extern int optind; |
| 834 | extern char *optarg; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 835 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 836 | __progname = get_progname(av[0]); |
Damien Miller | f9b625c | 2000-07-09 22:42:32 +1000 | [diff] [blame] | 837 | init_rng(); |
Damien Miller | 60bc517 | 2001-03-19 09:38:15 +1100 | [diff] [blame] | 838 | seed_rng(); |
Damien Miller | f9b625c | 2000-07-09 22:42:32 +1000 | [diff] [blame] | 839 | |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 840 | SSLeay_add_all_algorithms(); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 841 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 842 | /* we need this for the home * directory. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 843 | pw = getpwuid(getuid()); |
| 844 | if (!pw) { |
| 845 | printf("You don't exist, go away!\n"); |
| 846 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 847 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 848 | if (gethostname(hostname, sizeof(hostname)) < 0) { |
| 849 | perror("gethostname"); |
| 850 | exit(1); |
| 851 | } |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 852 | |
Ben Lindstrom | f19578c | 2001-08-06 21:46:54 +0000 | [diff] [blame] | 853 | while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:U:D:P:N:C:")) != -1) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 862 | case 'l': |
| 863 | print_fingerprint = 1; |
| 864 | break; |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 865 | case 'B': |
| 866 | print_bubblebabble = 1; |
| 867 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 868 | case 'p': |
| 869 | change_passphrase = 1; |
| 870 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 871 | case 'c': |
| 872 | change_comment = 1; |
| 873 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 874 | case 'f': |
| 875 | strlcpy(identity_file, optarg, sizeof(identity_file)); |
| 876 | have_identity = 1; |
| 877 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 878 | case 'P': |
| 879 | identity_passphrase = optarg; |
| 880 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 881 | case 'N': |
| 882 | identity_new_passphrase = optarg; |
| 883 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 884 | case 'C': |
| 885 | identity_comment = optarg; |
| 886 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 887 | case 'q': |
| 888 | quiet = 1; |
| 889 | break; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 890 | case 'R': |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 891 | /* unused */ |
| 892 | exit(0); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 893 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 894 | case 'e': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 895 | case 'x': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 896 | /* export key */ |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 897 | convert_to_ssh2 = 1; |
| 898 | break; |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 899 | case 'i': |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 900 | case 'X': |
Ben Lindstrom | 5a70782 | 2001-04-22 17:15:46 +0000 | [diff] [blame] | 901 | /* import key */ |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 902 | convert_from_ssh2 = 1; |
| 903 | break; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 904 | case 'y': |
| 905 | print_public = 1; |
| 906 | break; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 907 | case 'd': |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 908 | key_type_name = "dsa"; |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 909 | break; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 910 | case 't': |
| 911 | key_type_name = optarg; |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 912 | break; |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 913 | case 'D': |
| 914 | download = 1; |
Ben Lindstrom | f19578c | 2001-08-06 21:46:54 +0000 | [diff] [blame] | 915 | case 'U': |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 916 | reader_id = optarg; |
Ben Lindstrom | cd39228 | 2001-07-04 03:44:03 +0000 | [diff] [blame] | 917 | break; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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 | } |
Ben Lindstrom | 8fd372b | 2001-03-12 03:02:17 +0000 | [diff] [blame] | 931 | if (print_fingerprint || print_bubblebabble) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 932 | do_fingerprint(pw); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 933 | if (change_passphrase) |
| 934 | do_change_passphrase(pw); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 935 | if (change_comment) |
| 936 | do_change_comment(pw); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 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); |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 943 | if (reader_id != NULL) { |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 944 | #ifdef SMARTCARD |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 945 | if (download) |
| 946 | do_download(pw, reader_id); |
| 947 | else |
| 948 | do_upload(pw, reader_id); |
Ben Lindstrom | 6818bfb | 2001-08-06 21:40:04 +0000 | [diff] [blame] | 949 | #else |
| 950 | fatal("no support for smartcards."); |
| 951 | #endif |
Ben Lindstrom | 8282d6a | 2001-08-06 21:44:05 +0000 | [diff] [blame] | 952 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 953 | |
| 954 | arc4random_stir(); |
| 955 | |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 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); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 960 | } |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 961 | if (!quiet) |
Damien Miller | e39cacc | 2000-11-29 12:18:44 +1100 | [diff] [blame] | 962 | printf("Generating public/private %s key pair.\n", key_type_name); |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 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); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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. */ |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 974 | snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 975 | if (strstr(identity_file, dotsshdir) != NULL && |
| 976 | stat(dotsshdir, &st) < 0) { |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 977 | if (mkdir(dotsshdir, 0700) < 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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 = |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 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); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1005 | if (strcmp(passphrase1, passphrase2) != 0) { |
Ben Lindstrom | 949974b | 2001-06-25 05:20:31 +0000 | [diff] [blame] | 1006 | /* |
| 1007 | * The passphrases do not match. Clear them and |
| 1008 | * retry. |
| 1009 | */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1022 | if (identity_comment) { |
| 1023 | strlcpy(comment, identity_comment, sizeof(comment)); |
| 1024 | } else { |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 1025 | /* Create default commend field for the passphrase. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1026 | snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); |
| 1027 | } |
| 1028 | |
| 1029 | /* Save the key with the given passphrase and comment. */ |
Ben Lindstrom | d0fca42 | 2001-03-26 13:44:06 +0000 | [diff] [blame] | 1030 | if (!key_save_private(private, identity_file, passphrase1, comment)) { |
Ben Lindstrom | 15f3386 | 2001-04-16 02:00:02 +0000 | [diff] [blame] | 1031 | printf("Saving the key failed: %s.\n", identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 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. */ |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 1041 | key_free(private); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1042 | arc4random_stir(); |
| 1043 | |
| 1044 | if (!quiet) |
| 1045 | printf("Your identification has been saved in %s.\n", identity_file); |
| 1046 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1047 | strlcat(identity_file, ".pub", sizeof(identity_file)); |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1048 | fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
| 1049 | if (fd == -1) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1050 | printf("Could not save your public key in %s\n", identity_file); |
| 1051 | exit(1); |
| 1052 | } |
Ben Lindstrom | 5fc6270 | 2001-03-09 18:19:24 +0000 | [diff] [blame] | 1053 | f = fdopen(fd, "w"); |
| 1054 | if (f == NULL) { |
| 1055 | printf("fdopen %s failed", identity_file); |
| 1056 | exit(1); |
| 1057 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 1058 | if (!key_write(public, f)) |
| 1059 | fprintf(stderr, "write key failed"); |
| 1060 | fprintf(f, " %s\n", comment); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1061 | fclose(f); |
| 1062 | |
| 1063 | if (!quiet) { |
Ben Lindstrom | cfccef9 | 2001-03-13 04:57:58 +0000 | [diff] [blame] | 1064 | char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX); |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 1065 | printf("Your public key has been saved in %s.\n", |
| 1066 | identity_file); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1067 | printf("The key fingerprint is:\n"); |
Ben Lindstrom | cfccef9 | 2001-03-13 04:57:58 +0000 | [diff] [blame] | 1068 | printf("%s %s\n", fp, comment); |
| 1069 | xfree(fp); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1070 | } |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 1071 | |
| 1072 | key_free(public); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 1073 | exit(0); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1074 | } |