crypto/pkcs12/p12_add.c

   1 /* p12_add.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 #include "cryptlib.h"
  61 #include <openssl/pkcs12.h>
  62
  63 /* Pack an object into an OCTET STRING and turn into a safebag */
  64
  65 PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it, int nid1,
  66              int nid2)
  67 {
  68         PKCS12_BAGS *bag;
  69         PKCS12_SAFEBAG *safebag;
  70         if (!(bag = PKCS12_BAGS_new())) {
  71                 PKCS12err(PKCS12_F_PKCS12_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
  72                 return NULL;
  73         }
  74         bag->type = OBJ_nid2obj(nid1);
  75         if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
  76                 PKCS12err(PKCS12_F_PKCS12_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
  77                 return NULL;
  78         }
  79         if (!(safebag = PKCS12_SAFEBAG_new())) {
  80                 PKCS12err(PKCS12_F_PKCS12_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
  81                 return NULL;
  82         }
  83         safebag->value.bag = bag;
  84         safebag->type = OBJ_nid2obj(nid2);
  85         return safebag;
  86 }
  87
  88 /* Turn PKCS8 object into a keybag */
  89
  90 PKCS12_SAFEBAG *PKCS12_MAKE_KEYBAG(PKCS8_PRIV_KEY_INFO *p8)
  91 {
  92         PKCS12_SAFEBAG *bag;
  93         if (!(bag = PKCS12_SAFEBAG_new())) {
  94                 PKCS12err(PKCS12_F_PKCS12_MAKE_KEYBAG,ERR_R_MALLOC_FAILURE);
  95                 return NULL;
  96         }
  97         bag->type = OBJ_nid2obj(NID_keyBag);
  98         bag->value.keybag = p8;
  99         return bag;
 100 }
 101
 102 /* Turn PKCS8 object into a shrouded keybag */
 103
 104 PKCS12_SAFEBAG *PKCS12_MAKE_SHKEYBAG(int pbe_nid, const char *pass,
 105              int passlen, unsigned char *salt, int saltlen, int iter,
 106              PKCS8_PRIV_KEY_INFO *p8)
 107 {
 108         PKCS12_SAFEBAG *bag;
 109
 110         /* Set up the safe bag */
 111         if (!(bag = PKCS12_SAFEBAG_new())) {
 112                 PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
 113                 return NULL;
 114         }
 115
 116         bag->type = OBJ_nid2obj(NID_pkcs8ShroudedKeyBag);
 117         if (!(bag->value.shkeybag =
 118           PKCS8_encrypt(pbe_nid, NULL, pass, passlen, salt, saltlen, iter,
 119                                                                          p8))) {
 120                 PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
 121                 return NULL;
 122         }
 123
 124         return bag;
 125 }
 126
 127 /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
 128 PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
 129 {
 130         PKCS7 *p7;
 131         if (!(p7 = PKCS7_new())) {
 132                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
 133                 return NULL;
 134         }
 135         p7->type = OBJ_nid2obj(NID_pkcs7_data);
 136         if (!(p7->d.data = M_ASN1_OCTET_STRING_new())) {
 137                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
 138                 return NULL;
 139         }
 140
 141         if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
 142                 PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);
 143                 return NULL;
 144         }
 145         return p7;
 146 }
 147
 148 /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
 149 STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
 150 {
 151         if(!PKCS7_type_is_data(p7)) return NULL;
 152         return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
 153 }
 154
 155 /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
 156
 157 PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
 158                               unsigned char *salt, int saltlen, int iter,
 159                               STACK_OF(PKCS12_SAFEBAG) *bags)
 160 {
 161         PKCS7 *p7;
 162         X509_ALGOR *pbe;
 163         if (!(p7 = PKCS7_new())) {
 164                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
 165                 return NULL;
 166         }
 167         if(!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
 168                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
 169                                 PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
 170                 return NULL;
 171         }
 172         if (!(pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen))) {
 173                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
 174                 return NULL;
 175         }
 176         X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
 177         p7->d.encrypted->enc_data->algorithm = pbe;
 178         M_ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
 179         if (!(p7->d.encrypted->enc_data->enc_data =
 180         PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass, passlen,
 181                                  bags, 1))) {
 182                 PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);
 183                 return NULL;
 184         }
 185
 186         return p7;
 187 }
 188
 189 STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass, int passlen)
 190 {
 191         if(!PKCS7_type_is_encrypted(p7)) return NULL;
 192         return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
 193                                    ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
 194                                    pass, passlen,
 195                                    p7->d.encrypted->enc_data->enc_data, 1);
 196 }
 197
 198 X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher,
 199                          const char *pass, int passlen,
 200                          unsigned char *salt, int saltlen, int iter,
 201                                                 PKCS8_PRIV_KEY_INFO *p8inf)
 202 {
 203         X509_SIG *p8;
 204         X509_ALGOR *pbe;
 205
 206         if (!(p8 = X509_SIG_new())) {
 207                 PKCS12err(PKCS12_F_PKCS8_ENCRYPT, ERR_R_MALLOC_FAILURE);
 208                 goto err;
 209         }
 210
 211         if(pbe_nid == -1) pbe = PKCS5_pbe2_set(cipher, iter, salt, saltlen);
 212         else pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
 213         if(!pbe) {
 214                 PKCS12err(PKCS12_F_PKCS8_ENCRYPT, ERR_R_ASN1_LIB);
 215                 goto err;
 216         }
 217         X509_ALGOR_free(p8->algor);
 218         p8->algor = pbe;
 219         M_ASN1_OCTET_STRING_free(p8->digest);
 220         p8->digest = PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS8_PRIV_KEY_INFO),
 221                                         pass, passlen, p8inf, 1);
 222         if(!p8->digest) {
 223                 PKCS12err(PKCS12_F_PKCS8_ENCRYPT, PKCS12_R_ENCRYPT_ERROR);
 224                 goto err;
 225         }
 226
 227         return p8;
 228
 229         err:
 230         X509_SIG_free(p8);
 231         return NULL;
 232 }
 233
 234 PKCS8_PRIV_KEY_INFO *PKCS8_decrypt(X509_SIG *p8, const char *pass, int passlen)
 235 {
 236         return PKCS12_item_decrypt_d2i(p8->algor, ASN1_ITEM_rptr(PKCS8_PRIV_KEY_INFO), pass,
 237                                         passlen, p8->digest, 1);
 238 }
 239
 240 PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(PKCS12_SAFEBAG *bag, const char *pass,
 241                                                                 int passlen)
 242 {
 243         return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
 244 }
 245
 246 int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
 247 {
 248         if(ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
 249                 &p12->authsafes->d.data))
 250                         return 1;
 251         return 0;
 252 }
 253
 254 STACK_OF(PKCS7) *PKCS12_unpack_authsafes(PKCS12 *p12)
 255 {
 256         return ASN1_item_unpack(p12->authsafes->d.data, ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
 257 }