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3c0ef626 | 1 | /* |
2 | * Copyright (c) 2001 Markus Friedl. All rights reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | */ | |
24 | ||
25 | #include "includes.h" | |
2980ea68 | 26 | #if defined(SMARTCARD) && defined(USE_SECTOK) |
70791e56 | 27 | RCSID("$OpenBSD: scard.c,v 1.28 2003/06/12 19:12:02 markus Exp $"); |
3c0ef626 | 28 | |
2980ea68 | 29 | #include <openssl/evp.h> |
3c0ef626 | 30 | #include <sectok.h> |
31 | ||
32 | #include "key.h" | |
33 | #include "log.h" | |
34 | #include "xmalloc.h" | |
2980ea68 | 35 | #include "readpass.h" |
3c0ef626 | 36 | #include "scard.h" |
37 | ||
2980ea68 | 38 | #if OPENSSL_VERSION_NUMBER < 0x00907000L |
39 | #define USE_ENGINE | |
40 | #define RSA_get_default_method RSA_get_default_openssl_method | |
41 | #else | |
42 | #endif | |
43 | ||
44 | #ifdef USE_ENGINE | |
45 | #include <openssl/engine.h> | |
46 | #define sc_get_rsa sc_get_engine | |
47 | #else | |
48 | #define sc_get_rsa sc_get_rsa_method | |
49 | #endif | |
50 | ||
3c0ef626 | 51 | #define CLA_SSH 0x05 |
52 | #define INS_DECRYPT 0x10 | |
53 | #define INS_GET_KEYLENGTH 0x20 | |
54 | #define INS_GET_PUBKEY 0x30 | |
55 | #define INS_GET_RESPONSE 0xc0 | |
56 | ||
57 | #define MAX_BUF_SIZE 256 | |
58 | ||
2980ea68 | 59 | u_char DEFAUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63}; |
60 | ||
3c0ef626 | 61 | static int sc_fd = -1; |
62 | static char *sc_reader_id = NULL; | |
2980ea68 | 63 | static char *sc_pin = NULL; |
3c0ef626 | 64 | static int cla = 0x00; /* class */ |
65 | ||
2980ea68 | 66 | static void sc_mk_digest(const char *pin, u_char *digest); |
67 | static int get_AUT0(u_char *aut0); | |
68 | static int try_AUT0(void); | |
69 | ||
3c0ef626 | 70 | /* interface to libsectok */ |
71 | ||
e9a17296 | 72 | static int |
3c0ef626 | 73 | sc_open(void) |
74 | { | |
75 | int sw; | |
76 | ||
77 | if (sc_fd >= 0) | |
78 | return sc_fd; | |
79 | ||
80 | sc_fd = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw); | |
81 | if (sc_fd < 0) { | |
82 | error("sectok_open failed: %s", sectok_get_sw(sw)); | |
83 | return SCARD_ERROR_FAIL; | |
84 | } | |
85 | if (! sectok_cardpresent(sc_fd)) { | |
86 | debug("smartcard in reader %s not present, skipping", | |
87 | sc_reader_id); | |
88 | sc_close(); | |
89 | return SCARD_ERROR_NOCARD; | |
90 | } | |
91 | if (sectok_reset(sc_fd, 0, NULL, &sw) <= 0) { | |
92 | error("sectok_reset failed: %s", sectok_get_sw(sw)); | |
93 | sc_fd = -1; | |
94 | return SCARD_ERROR_FAIL; | |
95 | } | |
96 | if ((cla = cyberflex_inq_class(sc_fd)) < 0) | |
97 | cla = 0; | |
98 | ||
99 | debug("sc_open ok %d", sc_fd); | |
100 | return sc_fd; | |
101 | } | |
102 | ||
e9a17296 | 103 | static int |
3c0ef626 | 104 | sc_enable_applet(void) |
105 | { | |
106 | static u_char aid[] = {0xfc, 0x53, 0x73, 0x68, 0x2e, 0x62, 0x69, 0x6e}; | |
107 | int sw = 0; | |
108 | ||
109 | /* select applet id */ | |
110 | sectok_apdu(sc_fd, cla, 0xa4, 0x04, 0, sizeof aid, aid, 0, NULL, &sw); | |
111 | if (!sectok_swOK(sw)) { | |
112 | error("sectok_apdu failed: %s", sectok_get_sw(sw)); | |
113 | sc_close(); | |
114 | return -1; | |
115 | } | |
116 | return 0; | |
117 | } | |
118 | ||
e9a17296 | 119 | static int |
3c0ef626 | 120 | sc_init(void) |
121 | { | |
122 | int status; | |
123 | ||
124 | status = sc_open(); | |
125 | if (status == SCARD_ERROR_NOCARD) { | |
126 | return SCARD_ERROR_NOCARD; | |
127 | } | |
128 | if (status < 0 ) { | |
129 | error("sc_open failed"); | |
130 | return status; | |
131 | } | |
132 | if (sc_enable_applet() < 0) { | |
133 | error("sc_enable_applet failed"); | |
134 | return SCARD_ERROR_APPLET; | |
135 | } | |
136 | return 0; | |
137 | } | |
138 | ||
e9a17296 | 139 | static int |
3c0ef626 | 140 | sc_read_pubkey(Key * k) |
141 | { | |
142 | u_char buf[2], *n; | |
143 | char *p; | |
144 | int len, sw, status = -1; | |
145 | ||
146 | len = sw = 0; | |
147 | n = NULL; | |
148 | ||
149 | if (sc_fd < 0) { | |
2980ea68 | 150 | if (sc_init() < 0) |
3c0ef626 | 151 | goto err; |
152 | } | |
153 | ||
154 | /* get key size */ | |
155 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_KEYLENGTH, 0, 0, 0, NULL, | |
e9a17296 | 156 | sizeof(buf), buf, &sw); |
3c0ef626 | 157 | if (!sectok_swOK(sw)) { |
158 | error("could not obtain key length: %s", sectok_get_sw(sw)); | |
159 | goto err; | |
160 | } | |
161 | len = (buf[0] << 8) | buf[1]; | |
162 | len /= 8; | |
163 | debug("INS_GET_KEYLENGTH: len %d sw %s", len, sectok_get_sw(sw)); | |
164 | ||
165 | n = xmalloc(len); | |
166 | /* get n */ | |
167 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_PUBKEY, 0, 0, 0, NULL, len, n, &sw); | |
2980ea68 | 168 | |
169 | if (sw == 0x6982) { | |
170 | if (try_AUT0() < 0) | |
171 | goto err; | |
172 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_PUBKEY, 0, 0, 0, NULL, len, n, &sw); | |
173 | } | |
3c0ef626 | 174 | if (!sectok_swOK(sw)) { |
175 | error("could not obtain public key: %s", sectok_get_sw(sw)); | |
176 | goto err; | |
177 | } | |
178 | ||
179 | debug("INS_GET_KEYLENGTH: sw %s", sectok_get_sw(sw)); | |
180 | ||
181 | if (BN_bin2bn(n, len, k->rsa->n) == NULL) { | |
182 | error("c_read_pubkey: BN_bin2bn failed"); | |
183 | goto err; | |
184 | } | |
185 | ||
186 | /* currently the java applet just stores 'n' */ | |
187 | if (!BN_set_word(k->rsa->e, 35)) { | |
188 | error("c_read_pubkey: BN_set_word(e, 35) failed"); | |
189 | goto err; | |
190 | } | |
191 | ||
192 | status = 0; | |
193 | p = key_fingerprint(k, SSH_FP_MD5, SSH_FP_HEX); | |
ff2d7a98 | 194 | debug("fingerprint %u %s", key_size(k), p); |
3c0ef626 | 195 | xfree(p); |
196 | ||
197 | err: | |
198 | if (n != NULL) | |
199 | xfree(n); | |
200 | sc_close(); | |
201 | return status; | |
202 | } | |
203 | ||
204 | /* private key operations */ | |
205 | ||
206 | static int | |
2980ea68 | 207 | sc_private_decrypt(int flen, u_char *from, u_char *to, RSA *rsa, |
208 | int padding) | |
3c0ef626 | 209 | { |
210 | u_char *padded = NULL; | |
211 | int sw, len, olen, status = -1; | |
212 | ||
213 | debug("sc_private_decrypt called"); | |
214 | ||
215 | olen = len = sw = 0; | |
216 | if (sc_fd < 0) { | |
217 | status = sc_init(); | |
218 | if (status < 0 ) | |
219 | goto err; | |
220 | } | |
221 | if (padding != RSA_PKCS1_PADDING) | |
222 | goto err; | |
223 | ||
224 | len = BN_num_bytes(rsa->n); | |
225 | padded = xmalloc(len); | |
226 | ||
2980ea68 | 227 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, from, len, padded, &sw); |
228 | ||
229 | if (sw == 0x6982) { | |
230 | if (try_AUT0() < 0) | |
231 | goto err; | |
232 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, from, len, padded, &sw); | |
3c0ef626 | 233 | } |
3c0ef626 | 234 | if (!sectok_swOK(sw)) { |
2980ea68 | 235 | error("sc_private_decrypt: INS_DECRYPT failed: %s", |
3c0ef626 | 236 | sectok_get_sw(sw)); |
237 | goto err; | |
238 | } | |
239 | olen = RSA_padding_check_PKCS1_type_2(to, len, padded + 1, len - 1, | |
240 | len); | |
241 | err: | |
242 | if (padded) | |
243 | xfree(padded); | |
244 | sc_close(); | |
245 | return (olen >= 0 ? olen : status); | |
246 | } | |
247 | ||
248 | static int | |
2980ea68 | 249 | sc_private_encrypt(int flen, u_char *from, u_char *to, RSA *rsa, |
250 | int padding) | |
3c0ef626 | 251 | { |
252 | u_char *padded = NULL; | |
253 | int sw, len, status = -1; | |
254 | ||
255 | len = sw = 0; | |
256 | if (sc_fd < 0) { | |
257 | status = sc_init(); | |
258 | if (status < 0 ) | |
259 | goto err; | |
260 | } | |
261 | if (padding != RSA_PKCS1_PADDING) | |
262 | goto err; | |
263 | ||
264 | debug("sc_private_encrypt called"); | |
265 | len = BN_num_bytes(rsa->n); | |
266 | padded = xmalloc(len); | |
267 | ||
2980ea68 | 268 | if (RSA_padding_add_PKCS1_type_1(padded, len, (u_char *)from, flen) <= 0) { |
3c0ef626 | 269 | error("RSA_padding_add_PKCS1_type_1 failed"); |
270 | goto err; | |
271 | } | |
2980ea68 | 272 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, padded, len, to, &sw); |
273 | if (sw == 0x6982) { | |
274 | if (try_AUT0() < 0) | |
275 | goto err; | |
276 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, padded, len, to, &sw); | |
3c0ef626 | 277 | } |
3c0ef626 | 278 | if (!sectok_swOK(sw)) { |
2980ea68 | 279 | error("sc_private_encrypt: INS_DECRYPT failed: %s", |
3c0ef626 | 280 | sectok_get_sw(sw)); |
281 | goto err; | |
282 | } | |
283 | err: | |
284 | if (padded) | |
285 | xfree(padded); | |
286 | sc_close(); | |
287 | return (len >= 0 ? len : status); | |
288 | } | |
289 | ||
290 | /* called on free */ | |
291 | ||
292 | static int (*orig_finish)(RSA *rsa) = NULL; | |
293 | ||
294 | static int | |
295 | sc_finish(RSA *rsa) | |
296 | { | |
297 | if (orig_finish) | |
298 | orig_finish(rsa); | |
299 | sc_close(); | |
300 | return 1; | |
301 | } | |
302 | ||
3c0ef626 | 303 | /* engine for overloading private key operations */ |
304 | ||
2980ea68 | 305 | static RSA_METHOD * |
306 | sc_get_rsa_method(void) | |
3c0ef626 | 307 | { |
2980ea68 | 308 | static RSA_METHOD smart_rsa; |
309 | const RSA_METHOD *def = RSA_get_default_method(); | |
310 | ||
311 | /* use the OpenSSL version */ | |
312 | memcpy(&smart_rsa, def, sizeof(smart_rsa)); | |
3c0ef626 | 313 | |
2980ea68 | 314 | smart_rsa.name = "sectok"; |
3c0ef626 | 315 | |
316 | /* overload */ | |
317 | smart_rsa.rsa_priv_enc = sc_private_encrypt; | |
318 | smart_rsa.rsa_priv_dec = sc_private_decrypt; | |
319 | ||
320 | /* save original */ | |
321 | orig_finish = def->finish; | |
322 | smart_rsa.finish = sc_finish; | |
323 | ||
2980ea68 | 324 | return &smart_rsa; |
325 | } | |
326 | ||
327 | #ifdef USE_ENGINE | |
328 | static ENGINE * | |
329 | sc_get_engine(void) | |
330 | { | |
331 | static ENGINE *smart_engine = NULL; | |
3c0ef626 | 332 | |
e9a17296 | 333 | if ((smart_engine = ENGINE_new()) == NULL) |
334 | fatal("ENGINE_new failed"); | |
3c0ef626 | 335 | |
336 | ENGINE_set_id(smart_engine, "sectok"); | |
337 | ENGINE_set_name(smart_engine, "libsectok"); | |
2980ea68 | 338 | |
339 | ENGINE_set_RSA(smart_engine, sc_get_rsa_method()); | |
3c0ef626 | 340 | ENGINE_set_DSA(smart_engine, DSA_get_default_openssl_method()); |
341 | ENGINE_set_DH(smart_engine, DH_get_default_openssl_method()); | |
342 | ENGINE_set_RAND(smart_engine, RAND_SSLeay()); | |
343 | ENGINE_set_BN_mod_exp(smart_engine, BN_mod_exp); | |
344 | ||
345 | return smart_engine; | |
346 | } | |
2980ea68 | 347 | #endif |
3c0ef626 | 348 | |
349 | void | |
350 | sc_close(void) | |
351 | { | |
352 | if (sc_fd >= 0) { | |
353 | sectok_close(sc_fd); | |
354 | sc_fd = -1; | |
355 | } | |
356 | } | |
357 | ||
2980ea68 | 358 | Key ** |
359 | sc_get_keys(const char *id, const char *pin) | |
3c0ef626 | 360 | { |
2980ea68 | 361 | Key *k, *n, **keys; |
362 | int status, nkeys = 2; | |
3c0ef626 | 363 | |
364 | if (sc_reader_id != NULL) | |
365 | xfree(sc_reader_id); | |
366 | sc_reader_id = xstrdup(id); | |
367 | ||
2980ea68 | 368 | if (sc_pin != NULL) |
369 | xfree(sc_pin); | |
370 | sc_pin = (pin == NULL) ? NULL : xstrdup(pin); | |
371 | ||
3c0ef626 | 372 | k = key_new(KEY_RSA); |
373 | if (k == NULL) { | |
374 | return NULL; | |
375 | } | |
376 | status = sc_read_pubkey(k); | |
377 | if (status == SCARD_ERROR_NOCARD) { | |
378 | key_free(k); | |
379 | return NULL; | |
380 | } | |
381 | if (status < 0 ) { | |
382 | error("sc_read_pubkey failed"); | |
383 | key_free(k); | |
384 | return NULL; | |
385 | } | |
2980ea68 | 386 | keys = xmalloc((nkeys+1) * sizeof(Key *)); |
387 | ||
388 | n = key_new(KEY_RSA1); | |
389 | BN_copy(n->rsa->n, k->rsa->n); | |
390 | BN_copy(n->rsa->e, k->rsa->e); | |
391 | RSA_set_method(n->rsa, sc_get_rsa()); | |
392 | n->flags |= KEY_FLAG_EXT; | |
393 | keys[0] = n; | |
394 | ||
395 | n = key_new(KEY_RSA); | |
396 | BN_copy(n->rsa->n, k->rsa->n); | |
397 | BN_copy(n->rsa->e, k->rsa->e); | |
398 | RSA_set_method(n->rsa, sc_get_rsa()); | |
399 | n->flags |= KEY_FLAG_EXT; | |
400 | keys[1] = n; | |
401 | ||
402 | keys[2] = NULL; | |
403 | ||
404 | key_free(k); | |
405 | return keys; | |
406 | } | |
407 | ||
408 | #define NUM_RSA_KEY_ELEMENTS 5+1 | |
409 | #define COPY_RSA_KEY(x, i) \ | |
410 | do { \ | |
411 | len = BN_num_bytes(prv->rsa->x); \ | |
412 | elements[i] = xmalloc(len); \ | |
413 | debug("#bytes %d", len); \ | |
414 | if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \ | |
415 | goto done; \ | |
416 | } while (0) | |
417 | ||
418 | static void | |
419 | sc_mk_digest(const char *pin, u_char *digest) | |
420 | { | |
421 | const EVP_MD *evp_md = EVP_sha1(); | |
422 | EVP_MD_CTX md; | |
423 | ||
424 | EVP_DigestInit(&md, evp_md); | |
425 | EVP_DigestUpdate(&md, pin, strlen(pin)); | |
426 | EVP_DigestFinal(&md, digest, NULL); | |
427 | } | |
428 | ||
429 | static int | |
430 | get_AUT0(u_char *aut0) | |
431 | { | |
432 | char *pass; | |
433 | ||
434 | pass = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN); | |
435 | if (pass == NULL) | |
436 | return -1; | |
437 | if (!strcmp(pass, "-")) { | |
438 | memcpy(aut0, DEFAUT0, sizeof DEFAUT0); | |
439 | return 0; | |
440 | } | |
441 | sc_mk_digest(pass, aut0); | |
442 | memset(pass, 0, strlen(pass)); | |
443 | xfree(pass); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int | |
448 | try_AUT0(void) | |
449 | { | |
450 | u_char aut0[EVP_MAX_MD_SIZE]; | |
451 | ||
452 | /* permission denied; try PIN if provided */ | |
453 | if (sc_pin && strlen(sc_pin) > 0) { | |
454 | sc_mk_digest(sc_pin, aut0); | |
455 | if (cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) { | |
456 | error("smartcard passphrase incorrect"); | |
457 | return (-1); | |
458 | } | |
459 | } else { | |
460 | /* try default AUT0 key */ | |
461 | if (cyberflex_verify_AUT0(sc_fd, cla, DEFAUT0, 8) < 0) { | |
462 | /* default AUT0 key failed; prompt for passphrase */ | |
463 | if (get_AUT0(aut0) < 0 || | |
464 | cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) { | |
465 | error("smartcard passphrase incorrect"); | |
466 | return (-1); | |
467 | } | |
468 | } | |
469 | } | |
470 | return (0); | |
471 | } | |
472 | ||
473 | int | |
474 | sc_put_key(Key *prv, const char *id) | |
475 | { | |
476 | u_char *elements[NUM_RSA_KEY_ELEMENTS]; | |
477 | u_char key_fid[2]; | |
478 | u_char AUT0[EVP_MAX_MD_SIZE]; | |
479 | int len, status = -1, i, fd = -1, ret; | |
480 | int sw = 0, cla = 0x00; | |
481 | ||
482 | for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) | |
483 | elements[i] = NULL; | |
484 | ||
485 | COPY_RSA_KEY(q, 0); | |
486 | COPY_RSA_KEY(p, 1); | |
487 | COPY_RSA_KEY(iqmp, 2); | |
488 | COPY_RSA_KEY(dmq1, 3); | |
489 | COPY_RSA_KEY(dmp1, 4); | |
490 | COPY_RSA_KEY(n, 5); | |
491 | len = BN_num_bytes(prv->rsa->n); | |
492 | fd = sectok_friendly_open(id, STONOWAIT, &sw); | |
493 | if (fd < 0) { | |
494 | error("sectok_open failed: %s", sectok_get_sw(sw)); | |
495 | goto done; | |
496 | } | |
497 | if (! sectok_cardpresent(fd)) { | |
498 | error("smartcard in reader %s not present", id); | |
499 | goto done; | |
500 | } | |
501 | ret = sectok_reset(fd, 0, NULL, &sw); | |
502 | if (ret <= 0) { | |
503 | error("sectok_reset failed: %s", sectok_get_sw(sw)); | |
504 | goto done; | |
505 | } | |
506 | if ((cla = cyberflex_inq_class(fd)) < 0) { | |
507 | error("cyberflex_inq_class failed"); | |
508 | goto done; | |
509 | } | |
510 | memcpy(AUT0, DEFAUT0, sizeof(DEFAUT0)); | |
511 | if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { | |
512 | if (get_AUT0(AUT0) < 0 || | |
513 | cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) { | |
514 | memset(AUT0, 0, sizeof(DEFAUT0)); | |
515 | error("smartcard passphrase incorrect"); | |
516 | goto done; | |
517 | } | |
518 | } | |
519 | memset(AUT0, 0, sizeof(DEFAUT0)); | |
520 | key_fid[0] = 0x00; | |
521 | key_fid[1] = 0x12; | |
522 | if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements, | |
523 | &sw) < 0) { | |
524 | error("cyberflex_load_rsa_priv failed: %s", sectok_get_sw(sw)); | |
525 | goto done; | |
526 | } | |
527 | if (!sectok_swOK(sw)) | |
528 | goto done; | |
70791e56 | 529 | logit("cyberflex_load_rsa_priv done"); |
2980ea68 | 530 | key_fid[0] = 0x73; |
531 | key_fid[1] = 0x68; | |
532 | if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5], | |
533 | &sw) < 0) { | |
534 | error("cyberflex_load_rsa_pub failed: %s", sectok_get_sw(sw)); | |
535 | goto done; | |
536 | } | |
537 | if (!sectok_swOK(sw)) | |
538 | goto done; | |
70791e56 | 539 | logit("cyberflex_load_rsa_pub done"); |
2980ea68 | 540 | status = 0; |
541 | ||
542 | done: | |
543 | memset(elements[0], '\0', BN_num_bytes(prv->rsa->q)); | |
544 | memset(elements[1], '\0', BN_num_bytes(prv->rsa->p)); | |
545 | memset(elements[2], '\0', BN_num_bytes(prv->rsa->iqmp)); | |
546 | memset(elements[3], '\0', BN_num_bytes(prv->rsa->dmq1)); | |
547 | memset(elements[4], '\0', BN_num_bytes(prv->rsa->dmp1)); | |
548 | memset(elements[5], '\0', BN_num_bytes(prv->rsa->n)); | |
549 | ||
550 | for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++) | |
551 | if (elements[i]) | |
552 | xfree(elements[i]); | |
553 | if (fd != -1) | |
554 | sectok_close(fd); | |
555 | return (status); | |
3c0ef626 | 556 | } |
70791e56 | 557 | |
558 | char * | |
559 | sc_get_key_label(Key *key) | |
560 | { | |
561 | return xstrdup("smartcard key"); | |
562 | } | |
563 | ||
2980ea68 | 564 | #endif /* SMARTCARD && USE_SECTOK */ |