crypto/pkcs12/p12_crt.c

   1 /* p12_crt.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   4  * project.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 1999-2002 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/pkcs12.h>
  63 #ifdef OPENSSL_FIPS
  64 # include <openssl/fips.h>
  65 #endif
  66
  67 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
  68                           PKCS12_SAFEBAG *bag);
  69
  70 static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
  71 {
  72     int idx;
  73     X509_ATTRIBUTE *attr;
  74     idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
  75     if (idx < 0)
  76         return 1;
  77     attr = EVP_PKEY_get_attr(pkey, idx);
  78     if (!X509at_add1_attr(&bag->attrib, attr))
  79         return 0;
  80     return 1;
  81 }
  82
  83 PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
  84                       STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter,
  85                       int mac_iter, int keytype)
  86 {
  87     PKCS12 *p12 = NULL;
  88     STACK_OF(PKCS7) *safes = NULL;
  89     STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
  90     PKCS12_SAFEBAG *bag = NULL;
  91     int i;
  92     unsigned char keyid[EVP_MAX_MD_SIZE];
  93     unsigned int keyidlen = 0;
  94
  95     /* Set defaults */
  96     if (!nid_cert) {
  97 #ifdef OPENSSL_FIPS
  98         if (FIPS_mode())
  99             nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 100         else
 101 #endif
 102 #ifdef OPENSSL_NO_RC2
 103             nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 104 #else
 105             nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
 106 #endif
 107     }
 108     if (!nid_key)
 109         nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 110     if (!iter)
 111         iter = PKCS12_DEFAULT_ITER;
 112     if (!mac_iter)
 113         mac_iter = 1;
 114
 115     if (!pkey && !cert && !ca) {
 116         PKCS12err(PKCS12_F_PKCS12_CREATE, PKCS12_R_INVALID_NULL_ARGUMENT);
 117         return NULL;
 118     }
 119
 120     if (pkey && cert) {
 121         if (!X509_check_private_key(cert, pkey))
 122             return NULL;
 123         X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
 124     }
 125
 126     if (cert) {
 127         bag = PKCS12_add_cert(&bags, cert);
 128         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 129             goto err;
 130         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 131             goto err;
 132     }
 133
 134     /* Add all other certificates */
 135     for (i = 0; i < sk_X509_num(ca); i++) {
 136         if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
 137             goto err;
 138     }
 139
 140     if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
 141         goto err;
 142
 143     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 144     bags = NULL;
 145
 146     if (pkey) {
 147         bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
 148
 149         if (!bag)
 150             goto err;
 151
 152         if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
 153             goto err;
 154         if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
 155             goto err;
 156
 157         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 158             goto err;
 159         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 160             goto err;
 161     }
 162
 163     if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
 164         goto err;
 165
 166     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 167     bags = NULL;
 168
 169     p12 = PKCS12_add_safes(safes, 0);
 170
 171     if (!p12)
 172         goto err;
 173
 174     sk_PKCS7_pop_free(safes, PKCS7_free);
 175
 176     safes = NULL;
 177
 178     if ((mac_iter != -1) &&
 179         !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
 180         goto err;
 181
 182     return p12;
 183
 184  err:
 185
 186     if (p12)
 187         PKCS12_free(p12);
 188     if (safes)
 189         sk_PKCS7_pop_free(safes, PKCS7_free);
 190     if (bags)
 191         sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 192     return NULL;
 193
 194 }
 195
 196 PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
 197 {
 198     PKCS12_SAFEBAG *bag = NULL;
 199     char *name;
 200     int namelen = -1;
 201     unsigned char *keyid;
 202     int keyidlen = -1;
 203
 204     /* Add user certificate */
 205     if (!(bag = PKCS12_x5092certbag(cert)))
 206         goto err;
 207
 208     /*
 209      * Use friendlyName and localKeyID in certificate. (if present)
 210      */
 211
 212     name = (char *)X509_alias_get0(cert, &namelen);
 213
 214     if (name && !PKCS12_add_friendlyname(bag, name, namelen))
 215         goto err;
 216
 217     keyid = X509_keyid_get0(cert, &keyidlen);
 218
 219     if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 220         goto err;
 221
 222     if (!pkcs12_add_bag(pbags, bag))
 223         goto err;
 224
 225     return bag;
 226
 227  err:
 228
 229     if (bag)
 230         PKCS12_SAFEBAG_free(bag);
 231
 232     return NULL;
 233
 234 }
 235
 236 PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
 237                                EVP_PKEY *key, int key_usage, int iter,
 238                                int nid_key, char *pass)
 239 {
 240
 241     PKCS12_SAFEBAG *bag = NULL;
 242     PKCS8_PRIV_KEY_INFO *p8 = NULL;
 243
 244     /* Make a PKCS#8 structure */
 245     if (!(p8 = EVP_PKEY2PKCS8(key)))
 246         goto err;
 247     if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
 248         goto err;
 249     if (nid_key != -1) {
 250         bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
 251         PKCS8_PRIV_KEY_INFO_free(p8);
 252     } else
 253         bag = PKCS12_MAKE_KEYBAG(p8);
 254
 255     if (!bag)
 256         goto err;
 257
 258     if (!pkcs12_add_bag(pbags, bag))
 259         goto err;
 260
 261     return bag;
 262
 263  err:
 264
 265     if (bag)
 266         PKCS12_SAFEBAG_free(bag);
 267
 268     return NULL;
 269
 270 }
 271
 272 int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
 273                     int nid_safe, int iter, char *pass)
 274 {
 275     PKCS7 *p7 = NULL;
 276     int free_safes = 0;
 277
 278     if (!*psafes) {
 279         *psafes = sk_PKCS7_new_null();
 280         if (!*psafes)
 281             return 0;
 282         free_safes = 1;
 283     } else
 284         free_safes = 0;
 285
 286     if (nid_safe == 0)
 287 #ifdef OPENSSL_NO_RC2
 288         nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 289 #else
 290         nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
 291 #endif
 292
 293     if (nid_safe == -1)
 294         p7 = PKCS12_pack_p7data(bags);
 295     else
 296         p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, iter, bags);
 297     if (!p7)
 298         goto err;
 299
 300     if (!sk_PKCS7_push(*psafes, p7))
 301         goto err;
 302
 303     return 1;
 304
 305  err:
 306     if (free_safes) {
 307         sk_PKCS7_free(*psafes);
 308         *psafes = NULL;
 309     }
 310
 311     if (p7)
 312         PKCS7_free(p7);
 313
 314     return 0;
 315
 316 }
 317
 318 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
 319                           PKCS12_SAFEBAG *bag)
 320 {
 321     int free_bags;
 322     if (!pbags)
 323         return 1;
 324     if (!*pbags) {
 325         *pbags = sk_PKCS12_SAFEBAG_new_null();
 326         if (!*pbags)
 327             return 0;
 328         free_bags = 1;
 329     } else
 330         free_bags = 0;
 331
 332     if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
 333         if (free_bags) {
 334             sk_PKCS12_SAFEBAG_free(*pbags);
 335             *pbags = NULL;
 336         }
 337         return 0;
 338     }
 339
 340     return 1;
 341
 342 }
 343
 344 PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
 345 {
 346     PKCS12 *p12;
 347     if (nid_p7 <= 0)
 348         nid_p7 = NID_pkcs7_data;
 349     p12 = PKCS12_init(nid_p7);
 350
 351     if (!p12)
 352         return NULL;
 353
 354     if (!PKCS12_pack_authsafes(p12, safes)) {
 355         PKCS12_free(p12);
 356         return NULL;
 357     }
 358
 359     return p12;
 360
 361 }