1 /* $OpenBSD: p12_crt.c,v 1.23 2023/02/16 08:38:17 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 #include "pkcs12_local.h" 65 66 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, 67 PKCS12_SAFEBAG *bag); 68 69 static int 70 copy_bag_attr(PKCS12_SAFEBAG *bag, EVP_PKEY *pkey, int nid) 71 { 72 int idx; 73 X509_ATTRIBUTE *attr; 74 75 idx = EVP_PKEY_get_attr_by_NID(pkey, nid, -1); 76 if (idx < 0) 77 return 1; 78 attr = EVP_PKEY_get_attr(pkey, idx); 79 if (!X509at_add1_attr(&bag->attrib, attr)) 80 return 0; 81 return 1; 82 } 83 84 PKCS12 * 85 PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert, 86 STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter, 87 int keytype) 88 { 89 PKCS12 *p12 = NULL; 90 STACK_OF(PKCS7) *safes = NULL; 91 STACK_OF(PKCS12_SAFEBAG) *bags = NULL; 92 PKCS12_SAFEBAG *bag = NULL; 93 int i; 94 unsigned char keyid[EVP_MAX_MD_SIZE]; 95 unsigned int keyidlen = 0; 96 97 /* Set defaults */ 98 if (!nid_cert) { 99 nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC; 100 } 101 if (!nid_key) 102 nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC; 103 if (!iter) 104 iter = PKCS12_DEFAULT_ITER; 105 if (!mac_iter) 106 mac_iter = 1; 107 108 if (!pkey && !cert && !ca) { 109 PKCS12error(PKCS12_R_INVALID_NULL_ARGUMENT); 110 return NULL; 111 } 112 113 if (pkey && cert) { 114 if (!X509_check_private_key(cert, pkey)) 115 return NULL; 116 if (!X509_digest(cert, EVP_sha1(), keyid, &keyidlen)) 117 return NULL; 118 } 119 120 if (cert) { 121 bag = PKCS12_add_cert(&bags, cert); 122 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 123 goto err; 124 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 125 goto err; 126 } 127 128 /* Add all other certificates */ 129 for (i = 0; i < sk_X509_num(ca); i++) { 130 if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i))) 131 goto err; 132 } 133 134 if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass)) 135 goto err; 136 137 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 138 bags = NULL; 139 140 if (pkey) { 141 bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass); 142 143 if (!bag) 144 goto err; 145 146 if (!copy_bag_attr(bag, pkey, NID_ms_csp_name)) 147 goto err; 148 if (!copy_bag_attr(bag, pkey, NID_LocalKeySet)) 149 goto err; 150 151 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 152 goto err; 153 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 154 goto err; 155 } 156 157 if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL)) 158 goto err; 159 160 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 161 bags = NULL; 162 163 p12 = PKCS12_add_safes(safes, 0); 164 165 if (!p12) 166 goto err; 167 168 sk_PKCS7_pop_free(safes, PKCS7_free); 169 170 safes = NULL; 171 172 if ((mac_iter != -1) && 173 !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL)) 174 goto err; 175 176 return p12; 177 178 err: 179 if (p12) 180 PKCS12_free(p12); 181 if (safes) 182 sk_PKCS7_pop_free(safes, PKCS7_free); 183 if (bags) 184 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 185 return NULL; 186 } 187 LCRYPTO_ALIAS(PKCS12_create); 188 189 PKCS12_SAFEBAG * 190 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert) 191 { 192 PKCS12_SAFEBAG *bag = NULL; 193 char *name; 194 int namelen = -1; 195 unsigned char *keyid; 196 int keyidlen = -1; 197 198 /* Add user certificate */ 199 if (!(bag = PKCS12_x5092certbag(cert))) 200 goto err; 201 202 /* Use friendlyName and localKeyID in certificate. 203 * (if present) 204 */ 205 name = (char *)X509_alias_get0(cert, &namelen); 206 if (name && !PKCS12_add_friendlyname(bag, name, namelen)) 207 goto err; 208 209 keyid = X509_keyid_get0(cert, &keyidlen); 210 211 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 212 goto err; 213 214 if (!pkcs12_add_bag(pbags, bag)) 215 goto err; 216 217 return bag; 218 219 err: 220 if (bag) 221 PKCS12_SAFEBAG_free(bag); 222 223 return NULL; 224 } 225 LCRYPTO_ALIAS(PKCS12_add_cert); 226 227 PKCS12_SAFEBAG * 228 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage, 229 int iter, int nid_key, const char *pass) 230 { 231 PKCS12_SAFEBAG *bag = NULL; 232 PKCS8_PRIV_KEY_INFO *p8 = NULL; 233 234 /* Make a PKCS#8 structure */ 235 if (!(p8 = EVP_PKEY2PKCS8(key))) 236 goto err; 237 if (key_usage && !PKCS8_add_keyusage(p8, key_usage)) 238 goto err; 239 if (nid_key != -1) { 240 bag = PKCS12_SAFEBAG_create_pkcs8_encrypt(nid_key, pass, -1, 241 NULL, 0, iter, p8); 242 PKCS8_PRIV_KEY_INFO_free(p8); 243 p8 = NULL; 244 } else { 245 bag = PKCS12_SAFEBAG_create0_p8inf(p8); 246 if (bag != NULL) 247 p8 = NULL; 248 } 249 250 if (!bag) 251 goto err; 252 253 if (!pkcs12_add_bag(pbags, bag)) 254 goto err; 255 256 return bag; 257 258 err: 259 if (bag) 260 PKCS12_SAFEBAG_free(bag); 261 if (p8) 262 PKCS8_PRIV_KEY_INFO_free(p8); 263 264 return NULL; 265 } 266 LCRYPTO_ALIAS(PKCS12_add_key); 267 268 int 269 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags, 270 int nid_safe, int iter, const 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 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC; 285 286 if (nid_safe == -1) 287 p7 = PKCS12_pack_p7data(bags); 288 else 289 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, 290 iter, bags); 291 if (!p7) 292 goto err; 293 294 if (!sk_PKCS7_push(*psafes, p7)) 295 goto err; 296 297 return 1; 298 299 err: 300 if (free_safes) { 301 sk_PKCS7_free(*psafes); 302 *psafes = NULL; 303 } 304 305 if (p7) 306 PKCS7_free(p7); 307 308 return 0; 309 } 310 LCRYPTO_ALIAS(PKCS12_add_safe); 311 312 static int 313 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag) 314 { 315 int free_bags; 316 317 if (!pbags) 318 return 1; 319 if (!*pbags) { 320 *pbags = sk_PKCS12_SAFEBAG_new_null(); 321 if (!*pbags) 322 return 0; 323 free_bags = 1; 324 } else 325 free_bags = 0; 326 327 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) { 328 if (free_bags) { 329 sk_PKCS12_SAFEBAG_free(*pbags); 330 *pbags = NULL; 331 } 332 return 0; 333 } 334 335 return 1; 336 } 337 338 PKCS12 * 339 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7) 340 { 341 PKCS12 *p12; 342 343 if (nid_p7 <= 0) 344 nid_p7 = NID_pkcs7_data; 345 p12 = PKCS12_init(nid_p7); 346 347 if (!p12) 348 return NULL; 349 350 if (!PKCS12_pack_authsafes(p12, safes)) { 351 PKCS12_free(p12); 352 return NULL; 353 } 354 355 return p12; 356 } 357 LCRYPTO_ALIAS(PKCS12_add_safes); 358