1 /* $OpenBSD: p12_crt.c,v 1.26 2024/08/22 12:22:42 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 #include <openssl/x509.h> 64 65 #include "evp_local.h" 66 #include "pkcs12_local.h" 67 #include "x509_local.h" 68 69 static int pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, 70 PKCS12_SAFEBAG *bag); 71 72 PKCS12 * 73 PKCS12_create(const char *pass, const char *name, EVP_PKEY *pkey, X509 *cert, 74 STACK_OF(X509) *ca, int nid_key, int nid_cert, int iter, int mac_iter, 75 int keytype) 76 { 77 PKCS12 *p12 = NULL; 78 STACK_OF(PKCS7) *safes = NULL; 79 STACK_OF(PKCS12_SAFEBAG) *bags = NULL; 80 PKCS12_SAFEBAG *bag = NULL; 81 int i; 82 unsigned char keyid[EVP_MAX_MD_SIZE]; 83 unsigned int keyidlen = 0; 84 85 /* Set defaults */ 86 if (!nid_cert) { 87 nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC; 88 } 89 if (!nid_key) 90 nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC; 91 if (!iter) 92 iter = PKCS12_DEFAULT_ITER; 93 if (!mac_iter) 94 mac_iter = 1; 95 96 if (!pkey && !cert && !ca) { 97 PKCS12error(PKCS12_R_INVALID_NULL_ARGUMENT); 98 return NULL; 99 } 100 101 if (pkey && cert) { 102 if (!X509_check_private_key(cert, pkey)) 103 return NULL; 104 if (!X509_digest(cert, EVP_sha1(), keyid, &keyidlen)) 105 return NULL; 106 } 107 108 if (cert) { 109 bag = PKCS12_add_cert(&bags, cert); 110 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 111 goto err; 112 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 113 goto err; 114 } 115 116 /* Add all other certificates */ 117 for (i = 0; i < sk_X509_num(ca); i++) { 118 if (!PKCS12_add_cert(&bags, sk_X509_value(ca, i))) 119 goto err; 120 } 121 122 if (bags && !PKCS12_add_safe(&safes, bags, nid_cert, iter, pass)) 123 goto err; 124 125 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 126 bags = NULL; 127 128 if (pkey) { 129 bag = PKCS12_add_key(&bags, pkey, keytype, iter, nid_key, pass); 130 131 if (!bag) 132 goto err; 133 134 if (name && !PKCS12_add_friendlyname(bag, name, -1)) 135 goto err; 136 if (keyidlen && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 137 goto err; 138 } 139 140 if (bags && !PKCS12_add_safe(&safes, bags, -1, 0, NULL)) 141 goto err; 142 143 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 144 bags = NULL; 145 146 p12 = PKCS12_add_safes(safes, 0); 147 148 if (!p12) 149 goto err; 150 151 sk_PKCS7_pop_free(safes, PKCS7_free); 152 153 safes = NULL; 154 155 if ((mac_iter != -1) && 156 !PKCS12_set_mac(p12, pass, -1, NULL, 0, mac_iter, NULL)) 157 goto err; 158 159 return p12; 160 161 err: 162 if (p12) 163 PKCS12_free(p12); 164 if (safes) 165 sk_PKCS7_pop_free(safes, PKCS7_free); 166 if (bags) 167 sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free); 168 return NULL; 169 } 170 LCRYPTO_ALIAS(PKCS12_create); 171 172 PKCS12_SAFEBAG * 173 PKCS12_add_cert(STACK_OF(PKCS12_SAFEBAG) **pbags, X509 *cert) 174 { 175 PKCS12_SAFEBAG *bag = NULL; 176 char *name; 177 int namelen = -1; 178 unsigned char *keyid; 179 int keyidlen = -1; 180 181 /* Add user certificate */ 182 if (!(bag = PKCS12_x5092certbag(cert))) 183 goto err; 184 185 /* Use friendlyName and localKeyID in certificate. 186 * (if present) 187 */ 188 name = (char *)X509_alias_get0(cert, &namelen); 189 if (name && !PKCS12_add_friendlyname(bag, name, namelen)) 190 goto err; 191 192 keyid = X509_keyid_get0(cert, &keyidlen); 193 194 if (keyid && !PKCS12_add_localkeyid(bag, keyid, keyidlen)) 195 goto err; 196 197 if (!pkcs12_add_bag(pbags, bag)) 198 goto err; 199 200 return bag; 201 202 err: 203 if (bag) 204 PKCS12_SAFEBAG_free(bag); 205 206 return NULL; 207 } 208 209 PKCS12_SAFEBAG * 210 PKCS12_add_key(STACK_OF(PKCS12_SAFEBAG) **pbags, EVP_PKEY *key, int key_usage, 211 int iter, int nid_key, const char *pass) 212 { 213 PKCS12_SAFEBAG *bag = NULL; 214 PKCS8_PRIV_KEY_INFO *p8 = NULL; 215 216 /* Make a PKCS#8 structure */ 217 if (!(p8 = EVP_PKEY2PKCS8(key))) 218 goto err; 219 if (key_usage && !PKCS8_add_keyusage(p8, key_usage)) 220 goto err; 221 if (nid_key != -1) { 222 bag = PKCS12_SAFEBAG_create_pkcs8_encrypt(nid_key, pass, -1, 223 NULL, 0, iter, p8); 224 PKCS8_PRIV_KEY_INFO_free(p8); 225 p8 = NULL; 226 } else { 227 bag = PKCS12_SAFEBAG_create0_p8inf(p8); 228 if (bag != NULL) 229 p8 = NULL; 230 } 231 232 if (!bag) 233 goto err; 234 235 if (!pkcs12_add_bag(pbags, bag)) 236 goto err; 237 238 return bag; 239 240 err: 241 if (bag) 242 PKCS12_SAFEBAG_free(bag); 243 if (p8) 244 PKCS8_PRIV_KEY_INFO_free(p8); 245 246 return NULL; 247 } 248 249 int 250 PKCS12_add_safe(STACK_OF(PKCS7) **psafes, STACK_OF(PKCS12_SAFEBAG) *bags, 251 int nid_safe, int iter, const char *pass) 252 { 253 PKCS7 *p7 = NULL; 254 int free_safes = 0; 255 256 if (!*psafes) { 257 *psafes = sk_PKCS7_new_null(); 258 if (!*psafes) 259 return 0; 260 free_safes = 1; 261 } else 262 free_safes = 0; 263 264 if (nid_safe == 0) 265 nid_safe = NID_pbe_WithSHA1And40BitRC2_CBC; 266 267 if (nid_safe == -1) 268 p7 = PKCS12_pack_p7data(bags); 269 else 270 p7 = PKCS12_pack_p7encdata(nid_safe, pass, -1, NULL, 0, 271 iter, bags); 272 if (!p7) 273 goto err; 274 275 if (!sk_PKCS7_push(*psafes, p7)) 276 goto err; 277 278 return 1; 279 280 err: 281 if (free_safes) { 282 sk_PKCS7_free(*psafes); 283 *psafes = NULL; 284 } 285 286 if (p7) 287 PKCS7_free(p7); 288 289 return 0; 290 } 291 292 static int 293 pkcs12_add_bag(STACK_OF(PKCS12_SAFEBAG) **pbags, PKCS12_SAFEBAG *bag) 294 { 295 int free_bags; 296 297 if (!pbags) 298 return 1; 299 if (!*pbags) { 300 *pbags = sk_PKCS12_SAFEBAG_new_null(); 301 if (!*pbags) 302 return 0; 303 free_bags = 1; 304 } else 305 free_bags = 0; 306 307 if (!sk_PKCS12_SAFEBAG_push(*pbags, bag)) { 308 if (free_bags) { 309 sk_PKCS12_SAFEBAG_free(*pbags); 310 *pbags = NULL; 311 } 312 return 0; 313 } 314 315 return 1; 316 } 317 318 PKCS12 * 319 PKCS12_add_safes(STACK_OF(PKCS7) *safes, int nid_p7) 320 { 321 PKCS12 *p12; 322 323 if (nid_p7 <= 0) 324 nid_p7 = NID_pkcs7_data; 325 p12 = PKCS12_init(nid_p7); 326 327 if (!p12) 328 return NULL; 329 330 if (!PKCS12_pack_authsafes(p12, safes)) { 331 PKCS12_free(p12); 332 return NULL; 333 } 334 335 return p12; 336 } 337