1 /* $OpenBSD: p12_add.c,v 1.17 2018/05/13 14:24:07 tb Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 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 /* Pack an object into an OCTET STRING and turn into a safebag */ 65 66 PKCS12_SAFEBAG * 67 PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it, int nid1, int nid2) 68 { 69 PKCS12_BAGS *bag; 70 PKCS12_SAFEBAG *safebag; 71 72 if (!(bag = PKCS12_BAGS_new())) { 73 PKCS12error(ERR_R_MALLOC_FAILURE); 74 return NULL; 75 } 76 bag->type = OBJ_nid2obj(nid1); 77 if (!ASN1_item_pack(obj, it, &bag->value.octet)) { 78 PKCS12error(ERR_R_MALLOC_FAILURE); 79 PKCS12_BAGS_free(bag); 80 return NULL; 81 } 82 if (!(safebag = PKCS12_SAFEBAG_new())) { 83 PKCS12error(ERR_R_MALLOC_FAILURE); 84 PKCS12_BAGS_free(bag); 85 return NULL; 86 } 87 safebag->value.bag = bag; 88 safebag->type = OBJ_nid2obj(nid2); 89 return safebag; 90 } 91 92 /* Turn PKCS8 object into a keybag */ 93 94 PKCS12_SAFEBAG * 95 PKCS12_MAKE_KEYBAG(PKCS8_PRIV_KEY_INFO *p8) 96 { 97 PKCS12_SAFEBAG *bag; 98 99 if (!(bag = PKCS12_SAFEBAG_new())) { 100 PKCS12error(ERR_R_MALLOC_FAILURE); 101 return NULL; 102 } 103 bag->type = OBJ_nid2obj(NID_keyBag); 104 bag->value.keybag = p8; 105 return bag; 106 } 107 108 /* Turn PKCS8 object into a shrouded keybag */ 109 110 PKCS12_SAFEBAG * 111 PKCS12_MAKE_SHKEYBAG(int pbe_nid, const char *pass, int passlen, 112 unsigned char *salt, int saltlen, int iter, PKCS8_PRIV_KEY_INFO *p8) 113 { 114 PKCS12_SAFEBAG *bag; 115 const EVP_CIPHER *pbe_ciph; 116 117 /* Set up the safe bag */ 118 if (!(bag = PKCS12_SAFEBAG_new())) { 119 PKCS12error(ERR_R_MALLOC_FAILURE); 120 return NULL; 121 } 122 123 bag->type = OBJ_nid2obj(NID_pkcs8ShroudedKeyBag); 124 125 pbe_ciph = EVP_get_cipherbynid(pbe_nid); 126 127 if (pbe_ciph) 128 pbe_nid = -1; 129 130 if (!(bag->value.shkeybag = PKCS8_encrypt(pbe_nid, pbe_ciph, pass, 131 passlen, salt, saltlen, iter, p8))) { 132 PKCS12error(ERR_R_MALLOC_FAILURE); 133 PKCS12_SAFEBAG_free(bag); 134 return NULL; 135 } 136 137 return bag; 138 } 139 140 /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */ 141 PKCS7 * 142 PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk) 143 { 144 PKCS7 *p7; 145 146 if (!(p7 = PKCS7_new())) { 147 PKCS12error(ERR_R_MALLOC_FAILURE); 148 return NULL; 149 } 150 p7->type = OBJ_nid2obj(NID_pkcs7_data); 151 if (!(p7->d.data = ASN1_OCTET_STRING_new())) { 152 PKCS12error(ERR_R_MALLOC_FAILURE); 153 goto err; 154 } 155 156 if (!ASN1_item_pack(sk, &PKCS12_SAFEBAGS_it, &p7->d.data)) { 157 PKCS12error(PKCS12_R_CANT_PACK_STRUCTURE); 158 goto err; 159 } 160 return p7; 161 162 err: 163 PKCS7_free(p7); 164 return NULL; 165 } 166 167 /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */ 168 STACK_OF(PKCS12_SAFEBAG) * 169 PKCS12_unpack_p7data(PKCS7 *p7) 170 { 171 if (!PKCS7_type_is_data(p7)) { 172 PKCS12error(PKCS12_R_CONTENT_TYPE_NOT_DATA); 173 return NULL; 174 } 175 return ASN1_item_unpack(p7->d.data, &PKCS12_SAFEBAGS_it); 176 } 177 178 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */ 179 180 PKCS7 * 181 PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen, 182 unsigned char *salt, int saltlen, int iter, STACK_OF(PKCS12_SAFEBAG) *bags) 183 { 184 PKCS7 *p7; 185 X509_ALGOR *pbe; 186 const EVP_CIPHER *pbe_ciph; 187 188 if (!(p7 = PKCS7_new())) { 189 PKCS12error(ERR_R_MALLOC_FAILURE); 190 return NULL; 191 } 192 if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) { 193 PKCS12error(PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE); 194 goto err; 195 } 196 197 pbe_ciph = EVP_get_cipherbynid(pbe_nid); 198 199 if (pbe_ciph) 200 pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen); 201 else 202 pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen); 203 204 if (!pbe) { 205 PKCS12error(ERR_R_MALLOC_FAILURE); 206 goto err; 207 } 208 X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm); 209 p7->d.encrypted->enc_data->algorithm = pbe; 210 ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data); 211 if (!(p7->d.encrypted->enc_data->enc_data = PKCS12_item_i2d_encrypt( 212 pbe, &PKCS12_SAFEBAGS_it, pass, passlen, bags, 1))) { 213 PKCS12error(PKCS12_R_ENCRYPT_ERROR); 214 goto err; 215 } 216 217 return p7; 218 219 err: 220 PKCS7_free(p7); 221 return NULL; 222 } 223 224 STACK_OF(PKCS12_SAFEBAG) * 225 PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, int passlen) 226 { 227 if (!PKCS7_type_is_encrypted(p7)) 228 return NULL; 229 return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm, 230 &PKCS12_SAFEBAGS_it, pass, passlen, 231 p7->d.encrypted->enc_data->enc_data, 1); 232 } 233 234 PKCS8_PRIV_KEY_INFO * 235 PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag, const char *pass, int passlen) 236 { 237 return PKCS8_decrypt(bag->value.shkeybag, pass, passlen); 238 } 239 240 int 241 PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes) 242 { 243 if (ASN1_item_pack(safes, &PKCS12_AUTHSAFES_it, 244 &p12->authsafes->d.data)) 245 return 1; 246 return 0; 247 } 248 249 STACK_OF(PKCS7) * 250 PKCS12_unpack_authsafes(const PKCS12 *p12) 251 { 252 if (!PKCS7_type_is_data(p12->authsafes)) { 253 PKCS12error(PKCS12_R_CONTENT_TYPE_NOT_DATA); 254 return NULL; 255 } 256 return ASN1_item_unpack(p12->authsafes->d.data, 257 &PKCS12_AUTHSAFES_it); 258 } 259