crypto/cms/cms_ess.c

   1 /* crypto/cms/cms_ess.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2008 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
  54 #include "cryptlib.h"
  55 #include <openssl/asn1t.h>
  56 #include <openssl/pem.h>
  57 #include <openssl/rand.h>
  58 #include <openssl/x509v3.h>
  59 #include <openssl/err.h>
  60 #include <openssl/cms.h>
  61 #include "cms_lcl.h"
  62 #include "asn1_locl.h"
  63
  64 DECLARE_ASN1_ITEM(CMS_ReceiptRequest)
  65
  66 IMPLEMENT_ASN1_FUNCTIONS(CMS_ReceiptRequest)
  67
  68 /* ESS services: for now just Signed Receipt related */
  69
  70 int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr)
  71         {
  72         ASN1_STRING *str;
  73         CMS_ReceiptRequest *rr = NULL;
  74         if (prr)
  75                 *prr = NULL;
  76         str = CMS_signed_get0_data_by_OBJ(si,
  77                                 OBJ_nid2obj(NID_id_smime_aa_receiptRequest),
  78                                         -3, V_ASN1_SEQUENCE);
  79         if (!str)
  80                 return 0;
  81
  82         rr = ASN1_item_unpack(str, ASN1_ITEM_rptr(CMS_ReceiptRequest));
  83         if (!rr)
  84                 return -1;
  85         if (prr)
  86                 *prr = rr;
  87         else
  88                 CMS_ReceiptRequest_free(rr);
  89         return 1;
  90         }
  91
  92 int CMS_add1_ReceiptRequest(CMS_SignerInfo *si,
  93                                 unsigned char *id, int idlen,
  94                                 int allorfirst,
  95                                 STACK_OF(GENERAL_NAMES) *receiptList,
  96                                 STACK_OF(GENERAL_NAMES) *receiptsTo)
  97         {
  98         CMS_ReceiptRequest *rr = NULL;
  99         STACK_OF(GENERAL_NAMES) *tmpto = NULL;
 100         unsigned char *rrder = NULL;
 101         int rrderlen;
 102         int r = 0;
 103
 104         rr = CMS_ReceiptRequest_new();
 105         if (!rr)
 106                 goto merr;
 107         if (id)
 108                 {
 109                 if (!ASN1_STRING_set(rr->signedContentIdentifier, id, idlen))
 110                         goto merr;
 111                 }
 112         else
 113                 {
 114                 if (!ASN1_STRING_set(rr->signedContentIdentifier, NULL, 32))
 115                         goto merr;
 116                 if (RAND_pseudo_bytes(rr->signedContentIdentifier->data, 32)
 117                                         <= 0)
 118                         goto err;
 119                 }
 120
 121         tmpto = rr->receiptsTo;
 122         rr->receiptsTo = receiptsTo;
 123
 124         if (receiptList)
 125                 {
 126                 rr->receiptsFrom->type = 1;
 127                 rr->receiptsFrom->d.receiptList = receiptList;
 128                 }
 129         else
 130                 {
 131                 rr->receiptsFrom->type = 0;
 132                 rr->receiptsFrom->d.allOrFirstTier = allorfirst;
 133                 }
 134
 135         rrderlen = i2d_CMS_ReceiptRequest(rr, &rrder);
 136
 137         r = CMS_signed_add1_attr_by_NID(si, NID_id_smime_aa_receiptRequest,
 138                                         V_ASN1_SEQUENCE, rrder, rrderlen);
 139
 140         merr:
 141         CMSerr(CMS_F_CMS_ADD1_RECEIPTREQUEST, ERR_R_MALLOC_FAILURE);
 142
 143         err:
 144         if (rr)
 145                 {
 146                 rr->receiptsTo = tmpto;
 147                 rr->receiptsFrom->type = 0;
 148                 CMS_ReceiptRequest_free(rr);
 149                 }
 150         if (rrder)
 151                 OPENSSL_free(rrder);
 152
 153         return r;
 154
 155         }
 156
 157 void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr,
 158                                         ASN1_STRING **pcid,
 159                                         int *pallorfirst,
 160                                         STACK_OF(GENERAL_NAMES) **plist,
 161                                         STACK_OF(GENERAL_NAMES) **prto)
 162         {
 163         if (pcid)
 164                 *pcid = rr->signedContentIdentifier;
 165         if (rr->receiptsFrom->type == 0)
 166                 {
 167                 if (pallorfirst)
 168                         *pallorfirst = (int)rr->receiptsFrom->d.allOrFirstTier;
 169                 if (plist)
 170                         *plist = NULL;
 171                 }
 172         else
 173                 {
 174                 if (pallorfirst)
 175                         *pallorfirst = -1;
 176                 if (plist)
 177                         *plist = rr->receiptsFrom->d.receiptList;
 178                 }
 179         if (prto)
 180                 *prto = rr->receiptsTo;
 181         }
 182
 183
 184