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_NO_RC2
  95         nid_cert = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
  96 #else
  97         nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
  98 #endif
  99     if (!nid_key)
 100         nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 101     if (!iter)
 102         iter = PKCS12_DEFAULT_ITER;
 103     if (!mac_iter)
 104         mac_iter = 1;
 105
 106     if (!pkey && !cert && !ca) {
 107         PKCS12err(PKCS12_F_PKCS12_CREATE, PKCS12_R_INVALID_NULL_ARGUMENT);
 108         return NULL;
 109     }
 110
 111     if (pkey && cert) {
 112         if (!X509_check_private_key(cert, pkey))
 113             return NULL;
 114         X509_digest(cert, EVP_sha1(), keyid, &keyidlen);
 115     }
 116
 117     if (cert) {
 118         bag = PKCS12_add_cert(&bags, cert);
 119         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 120             goto err;
 121         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 122             goto err;
 123     }
 124
 125     /* Add all other certificates */
 126     for (i = 0; i < sk_X509_num(ca); i++) {
 127         if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i)))
 128             goto err;
 129     }
 130
 131     if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass))
 132         goto err;
 133
 134     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 135     bags = NULL;
 136
 137     if (pkey) {
 138         bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass);
 139
 140         if (!bag)
 141             goto err;
 142
 143         if (!copy_bag_attr(bag, pkey, NID_ms_csp_name))
 144             goto err;
 145         if (!copy_bag_attr(bag, pkey, NID_LocalKeySet))
 146             goto err;
 147
 148         if (name && !PKCS12_add_friendlyname(bag, name, -1))
 149             goto err;
 150         if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 151             goto err;
 152     }
 153
 154     if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL))
 155         goto err;
 156
 157     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 158     bags = NULL;
 159
 160     p12 = PKCS12_add_safes(safes, 0);
 161
 162     if (!p12)
 163         goto err;
 164
 165     sk_PKCS7_pop_free(safes, PKCS7_free);
 166
 167     safes = NULL;
 168
 169     if ((mac_iter != -1) &&
 170         !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL))
 171         goto err;
 172
 173     return p12;
 174
 175  err:
 176     PKCS12_free(p12);
 177     sk_PKCS7_pop_free(safes, PKCS7_free);
 178     sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
 179     return NULL;
 180
 181 }
 182
 183 PKCS12_SAFEBAG *PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert)
 184 {
 185     PKCS12_SAFEBAG *bag = NULL;
 186     char *name;
 187     int namelen = -1;
 188     unsigned char *keyid;
 189     int keyidlen = -1;
 190
 191     /* Add user certificate */
 192     if (!(bag = PKCS12_x5092certbag(cert)))
 193         goto err;
 194
 195     /*
 196      * Use friendlyName and localKeyID in certificate. (if present)
 197      */
 198
 199     name = (char *)X509_alias_get0(cert, &namelen);
 200
 201     if (name && !PKCS12_add_friendlyname(bag, name, namelen))
 202         goto err;
 203
 204     keyid = X509_keyid_get0(cert, &keyidlen);
 205
 206     if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen))
 207         goto err;
 208
 209     if (!pkcs12_add_bag(pbags, bag))
 210         goto err;
 211
 212     return bag;
 213
 214  err:
 215     PKCS12_SAFEBAG_free(bag);
 216     return NULL;
 217
 218 }
 219
 220 PKCS12_SAFEBAG *PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags,
 221                                EVP_PKEY *key, int key_usage, int iter,
 222                                int nid_key, char *pass)
 223 {
 224
 225     PKCS12_SAFEBAG *bag = NULL;
 226     PKCS8_PRIV_KEY_INFO *p8 = NULL;
 227
 228     /* Make a PKCS#8 structure */
 229     if (!(p8 = EVP_PKEY2PKCS8(key)))
 230         goto err;
 231     if (key_usage && !PKCS8_add_keyusage(p8, key_usage))
 232         goto err;
 233     if (nid_key != -1) {
 234         bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, iter, p8);
 235         PKCS8_PRIV_KEY_INFO_free(p8);
 236     } else
 237         bag = PKCS12_MAKE_KEYBAG(p8);
 238
 239     if (!bag)
 240         goto err;
 241
 242     if (!pkcs12_add_bag(pbags, bag))
 243         goto err;
 244
 245     return bag;
 246
 247  err:
 248     PKCS12_SAFEBAG_free(bag);
 249     return NULL;
 250
 251 }
 252
 253 int PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags,
 254                     int nid_safe, int iter, char *pass)
 255 {
 256     PKCS7 *p7 = NULL;
 257     int free_safes = 0;
 258
 259     if (!*psafes) {
 260         *psafes = sk_PKCS7_new_null();
 261         if (!*psafes)
 262             return 0;
 263         free_safes = 1;
 264     } else
 265         free_safes = 0;
 266
 267     if (nid_safe == 0)
 268 #ifdef OPENSSL_NO_RC2
 269         nid_safe = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
 270 #else
 271         nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC;
 272 #endif
 273
 274     if (nid_safe == -1)
 275         p7 = PKCS12_pack_p7data(bags);
 276     else
 277         p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, iter, bags);
 278     if (!p7)
 279         goto err;
 280
 281     if (!sk_PKCS7_push(*psafes, p7))
 282         goto err;
 283
 284     return 1;
 285
 286  err:
 287     if (free_safes) {
 288         sk_PKCS7_free(*psafes);
 289         *psafes = NULL;
 290     }
 291     PKCS7_free(p7);
 292     return 0;
 293
 294 }
 295
 296 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags,
 297                           PKCS12_SAFEBAG *bag)
 298 {
 299     int free_bags;
 300     if (!pbags)
 301         return 1;
 302     if (!*pbags) {
 303         *pbags = sk_PKCS12_SAFEBAG_new_null();
 304         if (!*pbags)
 305             return 0;
 306         free_bags = 1;
 307     } else
 308         free_bags = 0;
 309
 310     if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) {
 311         if (free_bags) {
 312             sk_PKCS12_SAFEBAG_free(*pbags);
 313             *pbags = NULL;
 314         }
 315         return 0;
 316     }
 317
 318     return 1;
 319
 320 }
 321
 322 PKCS12 *PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7)
 323 {
 324     PKCS12 *p12;
 325     if (nid_p7 <= 0)
 326         nid_p7 = NID_pkcs7_data;
 327     p12 = PKCS12_init(nid_p7);
 328
 329     if (!p12)
 330         return NULL;
 331
 332     if (!PKCS12_pack_authsafes(p12, safes)) {
 333         PKCS12_free(p12);
 334         return NULL;
 335     }
 336
 337     return p12;
 338
 339 }