1 /* $OpenBSD: p12_crt.c,v 1.18 2018/05/13 13:46:55 tb 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(const char *pass, const 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 PKCS12error(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 if (p12) 177 PKCS12_free(p12); 178 if (safes) 179 sk_PKCS7_pop_free(safes, PKCS7_free); 180 if (bags) 181 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 182 return NULL; 183 } 184 185 PKCS12_SAFEBAG * 186 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert) 187 { 188 PKCS12_SAFEBAG *bag = NULL; 189 char *name; 190 int namelen = -1; 191 unsigned char *keyid; 192 int keyidlen = -1; 193 194 /* Add user certificate */ 195 if (!(bag = PKCS12_x5092certbag(cert))) 196 goto err; 197 198 /* Use friendlyName and localKeyID in certificate. 199 * (if present) 200 */ 201 name = (char *)X509_alias_get0(cert, &namelen); 202 if (name && !PKCS12_add_friendlyname(bag, name, namelen)) 203 goto err; 204 205 keyid = X509_keyid_get0(cert, &keyidlen); 206 207 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 208 goto err; 209 210 if (!pkcs12_add_bag(pbags, bag)) 211 goto err; 212 213 return bag; 214 215 err: 216 if (bag) 217 PKCS12_SAFEBAG_free(bag); 218 219 return NULL; 220 } 221 222 PKCS12_SAFEBAG * 223 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage, 224 int iter, int nid_key, const char *pass) 225 { 226 PKCS12_SAFEBAG *bag = NULL; 227 PKCS8_PRIV_KEY_INFO *p8 = NULL; 228 229 /* Make a PKCS#8 structure */ 230 if (!(p8 = EVP_PKEY2PKCS8(key))) 231 goto err; 232 if (key_usage && !PKCS8_add_keyusage(p8, key_usage)) 233 goto err; 234 if (nid_key != -1) { 235 bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0, 236 iter, p8); 237 PKCS8_PRIV_KEY_INFO_free(p8); 238 p8 = NULL; 239 } else { 240 bag = PKCS12_MAKE_KEYBAG(p8); 241 if (bag != NULL) 242 p8 = NULL; 243 } 244 245 if (!bag) 246 goto err; 247 248 if (!pkcs12_add_bag(pbags, bag)) 249 goto err; 250 251 return bag; 252 253 err: 254 if (bag) 255 PKCS12_SAFEBAG_free(bag); 256 if (p8) 257 PKCS8_PRIV_KEY_INFO_free(p8); 258 259 return NULL; 260 } 261 262 int 263 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags, 264 int nid_safe, int iter, const char *pass) 265 { 266 PKCS7 *p7 = NULL; 267 int free_safes = 0; 268 269 if (!*psafes) { 270 *psafes = sk_PKCS7_new_null(); 271 if (!*psafes) 272 return 0; 273 free_safes = 1; 274 } else 275 free_safes = 0; 276 277 if (nid_safe == 0) 278 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC; 279 280 if (nid_safe == -1) 281 p7 = PKCS12_pack_p7data(bags); 282 else 283 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, 284 iter, bags); 285 if (!p7) 286 goto err; 287 288 if (!sk_PKCS7_push(*psafes, p7)) 289 goto err; 290 291 return 1; 292 293 err: 294 if (free_safes) { 295 sk_PKCS7_free(*psafes); 296 *psafes = NULL; 297 } 298 299 if (p7) 300 PKCS7_free(p7); 301 302 return 0; 303 } 304 305 static int 306 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag) 307 { 308 int free_bags; 309 310 if (!pbags) 311 return 1; 312 if (!*pbags) { 313 *pbags = sk_PKCS12_SAFEBAG_new_null(); 314 if (!*pbags) 315 return 0; 316 free_bags = 1; 317 } else 318 free_bags = 0; 319 320 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) { 321 if (free_bags) { 322 sk_PKCS12_SAFEBAG_free(*pbags); 323 *pbags = NULL; 324 } 325 return 0; 326 } 327 328 return 1; 329 } 330 331 PKCS12 * 332 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7) 333 { 334 PKCS12 *p12; 335 336 if (nid_p7 <= 0) 337 nid_p7 = NID_pkcs7_data; 338 p12 = PKCS12_init(nid_p7); 339 340 if (!p12) 341 return NULL; 342 343 if (!PKCS12_pack_authsafes(p12, safes)) { 344 PKCS12_free(p12); 345 return NULL; 346 } 347 348 return p12; 349 } 350