1 /* $OpenBSD: p12_crt.c,v 1.15 2014/07/11 08:44:49 jsing Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999-2002 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <stdio.h> 60 61 #include <openssl/err.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 68 copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid) 69 { 70 int idx; 71 X509_ATTRIBUTE *attr; 72 73 idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1); 74 if (idx < 0) 75 return 1; 76 attr = EVP_PKEY_get_attr(pkey, idx); 77 if (!X509at_add1_attr(&bag->attrib, attr)) 78 return 0; 79 return 1; 80 } 81 82 PKCS12 * 83 PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert, 84 STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter, 85 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 nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC; 98 } 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, 108 PKCS12_R_INVALID_NULL_ARGUMENT); 109 return NULL; 110 } 111 112 if (pkey && cert) { 113 if (!X509_check_private_key(cert, pkey)) 114 return NULL; 115 X509_digest(cert, EVP_sha1(), keyid, &keyidlen); 116 } 117 118 if (cert) { 119 bag = PKCS12_add_cert(&bags, cert); 120 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 121 goto err; 122 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 123 goto err; 124 } 125 126 /* Add all other certificates */ 127 for (i = 0; i < sk_X509_num(ca); i++) { 128 if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i))) 129 goto err; 130 } 131 132 if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass)) 133 goto err; 134 135 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 136 bags = NULL; 137 138 if (pkey) { 139 bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass); 140 141 if (!bag) 142 goto err; 143 144 if (!copy_bag_attr(bag, pkey, NID_ms_csp_name)) 145 goto err; 146 if (!copy_bag_attr(bag, pkey, NID_LocalKeySet)) 147 goto err; 148 149 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 150 goto err; 151 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 152 goto err; 153 } 154 155 if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL)) 156 goto err; 157 158 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 159 bags = NULL; 160 161 p12 = PKCS12_add_safes(safes, 0); 162 163 if (!p12) 164 goto err; 165 166 sk_PKCS7_pop_free(safes, PKCS7_free); 167 168 safes = NULL; 169 170 if ((mac_iter != -1) && 171 !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL)) 172 goto err; 173 174 return p12; 175 176 err: 177 if (p12) 178 PKCS12_free(p12); 179 if (safes) 180 sk_PKCS7_pop_free(safes, PKCS7_free); 181 if (bags) 182 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 183 return NULL; 184 } 185 186 PKCS12_SAFEBAG * 187 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert) 188 { 189 PKCS12_SAFEBAG *bag = NULL; 190 char *name; 191 int namelen = -1; 192 unsigned char *keyid; 193 int keyidlen = -1; 194 195 /* Add user certificate */ 196 if (!(bag = PKCS12_x5092certbag(cert))) 197 goto err; 198 199 /* Use friendlyName and localKeyID in certificate. 200 * (if present) 201 */ 202 name = (char *)X509_alias_get0(cert, &namelen); 203 if (name && !PKCS12_add_friendlyname(bag, name, namelen)) 204 goto err; 205 206 keyid = X509_keyid_get0(cert, &keyidlen); 207 208 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 209 goto err; 210 211 if (!pkcs12_add_bag(pbags, bag)) 212 goto err; 213 214 return bag; 215 216 err: 217 if (bag) 218 PKCS12_SAFEBAG_free(bag); 219 220 return NULL; 221 } 222 223 PKCS12_SAFEBAG * 224 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage, 225 int iter, int nid_key, char *pass) 226 { 227 PKCS12_SAFEBAG *bag = NULL; 228 PKCS8_PRIV_KEY_INFO *p8 = NULL; 229 230 /* Make a PKCS#8 structure */ 231 if (!(p8 = EVP_PKEY2PKCS8(key))) 232 goto err; 233 if (key_usage && !PKCS8_add_keyusage(p8, key_usage)) 234 goto err; 235 if (nid_key != -1) { 236 bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, 237 iter, p8); 238 PKCS8_PRIV_KEY_INFO_free(p8); 239 p8 = NULL; 240 } else { 241 bag = PKCS12_MAKE_KEYBAG(p8); 242 if (bag != NULL) 243 p8 = NULL; 244 } 245 246 if (!bag) 247 goto err; 248 249 if (!pkcs12_add_bag(pbags, bag)) 250 goto err; 251 252 return bag; 253 254 err: 255 if (bag) 256 PKCS12_SAFEBAG_free(bag); 257 if (p8) 258 PKCS8_PRIV_KEY_INFO_free(p8); 259 260 return NULL; 261 } 262 263 int 264 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags, 265 int nid_safe, int iter, char *pass) 266 { 267 PKCS7 *p7 = NULL; 268 int free_safes = 0; 269 270 if (!*psafes) { 271 *psafes = sk_PKCS7_new_null(); 272 if (!*psafes) 273 return 0; 274 free_safes = 1; 275 } else 276 free_safes = 0; 277 278 if (nid_safe == 0) 279 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC; 280 281 if (nid_safe == -1) 282 p7 = PKCS12_pack_p7data(bags); 283 else 284 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, 285 iter, bags); 286 if (!p7) 287 goto err; 288 289 if (!sk_PKCS7_push(*psafes, p7)) 290 goto err; 291 292 return 1; 293 294 err: 295 if (free_safes) { 296 sk_PKCS7_free(*psafes); 297 *psafes = NULL; 298 } 299 300 if (p7) 301 PKCS7_free(p7); 302 303 return 0; 304 } 305 306 static int 307 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag) 308 { 309 int free_bags; 310 311 if (!pbags) 312 return 1; 313 if (!*pbags) { 314 *pbags = sk_PKCS12_SAFEBAG_new_null(); 315 if (!*pbags) 316 return 0; 317 free_bags = 1; 318 } else 319 free_bags = 0; 320 321 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) { 322 if (free_bags) { 323 sk_PKCS12_SAFEBAG_free(*pbags); 324 *pbags = NULL; 325 } 326 return 0; 327 } 328 329 return 1; 330 } 331 332 PKCS12 * 333 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7) 334 { 335 PKCS12 *p12; 336 337 if (nid_p7 <= 0) 338 nid_p7 = NID_pkcs7_data; 339 p12 = PKCS12_init(nid_p7); 340 341 if (!p12) 342 return NULL; 343 344 if (!PKCS12_pack_authsafes(p12, safes)) { 345 PKCS12_free(p12); 346 return NULL; 347 } 348 349 return p12; 350 } 351