crypto/libressl/crypto/pkcs12/p12_add.c

   1 /* $OpenBSD: p12_add.c,v 1.12 2015/02/14 12:43:07 miod 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                 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG,
  74                     ERR_R_MALLOC_FAILURE);
  75                 return NULL;
  76         }
  77         bag->type = OBJ_nid2obj(nid1);
  78         if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
  79                 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG,
  80                     ERR_R_MALLOC_FAILURE);
  81                 PKCS12_BAGS_free(bag);
  82                 return NULL;
  83         }
  84         if (!(safebag = PKCS12_SAFEBAG_new())) {
  85                 PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG,
  86                     ERR_R_MALLOC_FAILURE);
  87                 PKCS12_BAGS_free(bag);
  88                 return NULL;
  89         }
  90         safebag->value.bag = bag;
  91         safebag->type = OBJ_nid2obj(nid2);
  92         return safebag;
  93 }
  94
  95 /* Turn PKCS8 object into a keybag */
  96
  97 PKCS12_SAFEBAG *
  98 PKCS12_MAKE_KEYBAG(PKCS8_PRIV_KEY_INFO *p8)
  99 {
 100         PKCS12_SAFEBAG *bag;
 101
 102         if (!(bag = PKCS12_SAFEBAG_new())) {
 103                 PKCS12err(PKCS12_F_PKCS12_MAKE_KEYBAG, ERR_R_MALLOC_FAILURE);
 104                 return NULL;
 105         }
 106         bag->type = OBJ_nid2obj(NID_keyBag);
 107         bag->value.keybag = p8;
 108         return bag;
 109 }
 110
 111 /* Turn PKCS8 object into a shrouded keybag */
 112
 113 PKCS12_SAFEBAG *
 114 PKCS12_MAKE_SHKEYBAG(int pbe_nid, const char *pass, int passlen,
 115     unsigned char *salt, int saltlen, int iter, PKCS8_PRIV_KEY_INFO *p8)
 116 {
 117         PKCS12_SAFEBAG *bag;
 118         const EVP_CIPHER *pbe_ciph;
 119
 120         /* Set up the safe bag */
 121         if (!(bag = PKCS12_SAFEBAG_new())) {
 122                 PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
 123                 return NULL;
 124         }
 125
 126         bag->type = OBJ_nid2obj(NID_pkcs8ShroudedKeyBag);
 127
 128         pbe_ciph = EVP_get_cipherbynid(pbe_nid);
 129
 130         if (pbe_ciph)
 131                 pbe_nid = -1;
 132
 133         if (!(bag->value.shkeybag = PKCS8_encrypt(pbe_nid, pbe_ciph, pass,
 134             passlen, salt, saltlen, iter, p8))) {
 135                 PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
 136                 PKCS12_SAFEBAG_free(bag);
 137                 return NULL;
 138         }
 139
 140         return bag;
 141 }
 142
 143 /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
 144 PKCS7 *
 145 PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
 146 {
 147         PKCS7 *p7;
 148
 149         if (!(p7 = PKCS7_new())) {
 150                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
 151                 return NULL;
 152         }
 153         p7->type = OBJ_nid2obj(NID_pkcs7_data);
 154         if (!(p7->d.data = ASN1_OCTET_STRING_new())) {
 155                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
 156                 goto err;
 157         }
 158
 159         if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
 160                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA,
 161                     PKCS12_R_CANT_PACK_STRUCTURE);
 162                 goto err;
 163         }
 164         return p7;
 165
 166 err:
 167         PKCS7_free(p7);
 168         return NULL;
 169 }
 170
 171 /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
 172 STACK_OF(PKCS12_SAFEBAG) *
 173 PKCS12_unpack_p7data(PKCS7 *p7)
 174 {
 175         if (!PKCS7_type_is_data(p7)) {
 176                 PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,
 177                     PKCS12_R_CONTENT_TYPE_NOT_DATA);
 178                 return NULL;
 179         }
 180         return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
 181 }
 182
 183 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
 184
 185 PKCS7 *
 186 PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
 187     unsigned char *salt, int saltlen, int iter, STACK_OF(PKCS12_SAFEBAG) *bags)
 188 {
 189         PKCS7 *p7;
 190         X509_ALGOR *pbe;
 191         const EVP_CIPHER *pbe_ciph;
 192
 193         if (!(p7 = PKCS7_new())) {
 194                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
 195                 return NULL;
 196         }
 197         if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
 198                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
 199                     PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
 200                 goto err;
 201         }
 202
 203         pbe_ciph = EVP_get_cipherbynid(pbe_nid);
 204
 205         if (pbe_ciph)
 206                 pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
 207         else
 208                 pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
 209
 210         if (!pbe) {
 211                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
 212                 goto err;
 213         }
 214         X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
 215         p7->d.encrypted->enc_data->algorithm = pbe;
 216         ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
 217         if (!(p7->d.encrypted->enc_data->enc_data = PKCS12_item_i2d_encrypt(
 218             pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass, passlen, bags, 1))) {
 219                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
 220                     PKCS12_R_ENCRYPT_ERROR);
 221                 goto err;
 222         }
 223
 224         return p7;
 225
 226 err:
 227         PKCS7_free(p7);
 228         return NULL;
 229 }
 230
 231 STACK_OF(PKCS12_SAFEBAG) *
 232 PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, int passlen)
 233 {
 234         if (!PKCS7_type_is_encrypted(p7))
 235                 return NULL;
 236         return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
 237             ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass, passlen,
 238             p7->d.encrypted->enc_data->enc_data, 1);
 239 }
 240
 241 PKCS8_PRIV_KEY_INFO *
 242 PKCS12_decrypt_skey(PKCS12_SAFEBAG *bag, const char *pass, int passlen)
 243 {
 244         return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
 245 }
 246
 247 int
 248 PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
 249 {
 250         if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
 251             &p12->authsafes->d.data))
 252                 return 1;
 253         return 0;
 254 }
 255
 256 STACK_OF(PKCS7) *
 257 PKCS12_unpack_authsafes(PKCS12 *p12)
 258 {
 259         if (!PKCS7_type_is_data(p12->authsafes)) {
 260                 PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,
 261                     PKCS12_R_CONTENT_TYPE_NOT_DATA);
 262                 return NULL;
 263         }
 264         return ASN1_item_unpack(p12->authsafes->d.data,
 265             ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
 266 }