lib/libcrypto/pkcs12/p12_add.c

   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 }