crypto/openssl/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
  64 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
  65                           PKCS12_SAFEBAG *bag);
  66
  67 static int copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid)
  68 {
  69     int idx;
  70     X509_ATTRIBUTE *attr;
  71     idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1);
  72     if (idx < 0)
  73         return 1;
  74     attr = EVP_PKEY_get_attr(pkey, idx);
  75     if (!X509at_add1_attr(&bag->attrib, attr))
  76         return 0;
  77     return 1;
  78 }
  79
  80 PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert,
  81                       STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter,
  82                       int mac_iter, int keytype)
  83 {
  84     PKCS12 *p12 = NULL;
  85     STACK_OF(PKCS7) *safes = NULL;
  86     STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
  87     PKCS12_SAFEBAG *bag = NULL;
  88     int i;
  89     unsigned char keyid[EVP_MAX_MD_SIZE];
  90     unsigned int keyidlen = 0;
  91
  92     /* Set defaults */
  93     if (!nid_cert) {
  94 #ifdef OPENSSL_FIPS
  95         if (FIPS_mode())
  96             nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
  97         else
  98 #endif
  99 #ifdef OPENSSL_NO_RC2
 100             nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 101 #else
 102             nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
 103 #endif
 104     }
 105     if (!nid_key)
 106         nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 107     if (!iter)
 108         iter = PKCS12_DEFAULT_ITER;
 109     if (!mac_iter)
 110         mac_iter = 1;
 111
 112     if (!pkey && !cert && !ca) {
 113         PKCS12err(PKCS12_F_PKCS12_CREATE, PKCS12_R_INVALID_NULL_ARGUMENT);
 114         return NULL;
 115     }
 116
 117     if (pkey && cert) {
 118         if (!X509_check_private_key(cert, pkey))
 119             return NULL;
 120         X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
 121     }
 122
 123     if (cert) {
 124         bag = PKCS12_add_cert(&bags, cert);
 125         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 126             goto err;
 127         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 128             goto err;
 129     }
 130
 131     /* Add all other certificates */
 132     for (i = 0; i < sk_X509_num(ca); i++) {
 133         if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
 134             goto err;
 135     }
 136
 137     if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
 138         goto err;
 139
 140     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 141     bags = NULL;
 142
 143     if (pkey) {
 144         bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
 145
 146         if (!bag)
 147             goto err;
 148
 149         if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
 150             goto err;
 151         if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
 152             goto err;
 153
 154         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 155             goto err;
 156         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 157             goto err;
 158     }
 159
 160     if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
 161         goto err;
 162
 163     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 164     bags = NULL;
 165
 166     p12 = PKCS12_add_safes(safes, 0);
 167
 168     if (!p12)
 169         goto err;
 170
 171     sk_PKCS7_pop_free(safes, PKCS7_free);
 172
 173     safes = NULL;
 174
 175     if ((mac_iter != -1) &&
 176         !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
 177         goto err;
 178
 179     return p12;
 180
 181  err:
 182
 183     if (p12)
 184         PKCS12_free(p12);
 185     if (safes)
 186         sk_PKCS7_pop_free(safes, PKCS7_free);
 187     if (bags)
 188         sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 189     return NULL;
 190
 191 }
 192
 193 PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
 194 {
 195     PKCS12_SAFEBAG *bag = NULL;
 196     char *name;
 197     int namelen = -1;
 198     unsigned char *keyid;
 199     int keyidlen = -1;
 200
 201     /* Add user certificate */
 202     if (!(bag = PKCS12_x5092certbag(cert)))
 203         goto err;
 204
 205     /*
 206      * Use friendlyName and localKeyID in certificate. (if present)
 207      */
 208
 209     name = (char *)X509_alias_get0(cert, &namelen);
 210
 211     if (name && !PKCS12_add_friendlyname(bag, name, namelen))
 212         goto err;
 213
 214     keyid = X509_keyid_get0(cert, &keyidlen);
 215
 216     if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 217         goto err;
 218
 219     if (!pkcs12_add_bag(pbags, bag))
 220         goto err;
 221
 222     return bag;
 223
 224  err:
 225
 226     if (bag)
 227         PKCS12_SAFEBAG_free(bag);
 228
 229     return NULL;
 230
 231 }
 232
 233 PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
 234                                EVP_PKEY *key, int key_usage, int iter,
 235                                int nid_key, char *pass)
 236 {
 237
 238     PKCS12_SAFEBAG *bag = NULL;
 239     PKCS8_PRIV_KEY_INFO *p8 = NULL;
 240
 241     /* Make a PKCS#8 structure */
 242     if (!(p8 = EVP_PKEY2PKCS8(key)))
 243         goto err;
 244     if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
 245         goto err;
 246     if (nid_key != -1) {
 247         bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
 248         PKCS8_PRIV_KEY_INFO_free(p8);
 249     } else
 250         bag = PKCS12_MAKE_KEYBAG(p8);
 251
 252     if (!bag)
 253         goto err;
 254
 255     if (!pkcs12_add_bag(pbags, bag))
 256         goto err;
 257
 258     return bag;
 259
 260  err:
 261
 262     if (bag)
 263         PKCS12_SAFEBAG_free(bag);
 264
 265     return NULL;
 266
 267 }
 268
 269 int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
 270                     int nid_safe, int iter, char *pass)
 271 {
 272     PKCS7 *p7 = NULL;
 273     int free_safes = 0;
 274
 275     if (!*psafes) {
 276         *psafes = sk_PKCS7_new_null();
 277         if (!*psafes)
 278             return 0;
 279         free_safes = 1;
 280     } else
 281         free_safes = 0;
 282
 283     if (nid_safe == 0)
 284 #ifdef OPENSSL_NO_RC2
 285         nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 286 #else
 287         nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
 288 #endif
 289
 290     if (nid_safe == -1)
 291         p7 = PKCS12_pack_p7data(bags);
 292     else
 293         p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, iter, bags);
 294     if (!p7)
 295         goto err;
 296
 297     if (!sk_PKCS7_push(*psafes, p7))
 298         goto err;
 299
 300     return 1;
 301
 302  err:
 303     if (free_safes) {
 304         sk_PKCS7_free(*psafes);
 305         *psafes = NULL;
 306     }
 307
 308     if (p7)
 309         PKCS7_free(p7);
 310
 311     return 0;
 312
 313 }
 314
 315 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
 316                           PKCS12_SAFEBAG *bag)
 317 {
 318     int free_bags;
 319     if (!pbags)
 320         return 1;
 321     if (!*pbags) {
 322         *pbags = sk_PKCS12_SAFEBAG_new_null();
 323         if (!*pbags)
 324             return 0;
 325         free_bags = 1;
 326     } else
 327         free_bags = 0;
 328
 329     if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
 330         if (free_bags) {
 331             sk_PKCS12_SAFEBAG_free(*pbags);
 332             *pbags = NULL;
 333         }
 334         return 0;
 335     }
 336
 337     return 1;
 338
 339 }
 340
 341 PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
 342 {
 343     PKCS12 *p12;
 344     if (nid_p7 <= 0)
 345         nid_p7 = NID_pkcs7_data;
 346     p12 = PKCS12_init(nid_p7);
 347
 348     if (!p12)
 349         return NULL;
 350
 351     if (!PKCS12_pack_authsafes(p12, safes)) {
 352         PKCS12_free(p12);
 353         return NULL;
 354     }
 355
 356     return p12;
 357
 358 }