crypto/openssl-0.9.7e/crypto/ocsp/ocsp_srv.c

   1 /* ocsp_srv.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2001.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1998-2001 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  *    openssl-core@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/objects.h>
  62 #include <openssl/rand.h>
  63 #include <openssl/x509.h>
  64 #include <openssl/pem.h>
  65 #include <openssl/x509v3.h>
  66 #include <openssl/ocsp.h>
  67
  68 /* Utility functions related to sending OCSP responses and extracting
  69  * relevant information from the request.
  70  */
  71
  72 int OCSP_request_onereq_count(OCSP_REQUEST *req)
  73         {
  74         return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
  75         }
  76
  77 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
  78         {
  79         return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
  80         }
  81
  82 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
  83         {
  84         return one->reqCert;
  85         }
  86
  87 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
  88                         ASN1_OCTET_STRING **pikeyHash,
  89                         ASN1_INTEGER **pserial, OCSP_CERTID *cid)
  90         {
  91         if (!cid) return 0;
  92         if (pmd) *pmd = cid->hashAlgorithm->algorithm;
  93         if(piNameHash) *piNameHash = cid->issuerNameHash;
  94         if (pikeyHash) *pikeyHash = cid->issuerKeyHash;
  95         if (pserial) *pserial = cid->serialNumber;
  96         return 1;
  97         }
  98
  99 int OCSP_request_is_signed(OCSP_REQUEST *req)
 100         {
 101         if(req->optionalSignature) return 1;
 102         return 0;
 103         }
 104
 105 /* Create an OCSP response and encode an optional basic response */
 106 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
 107         {
 108         OCSP_RESPONSE *rsp = NULL;
 109
 110         if (!(rsp = OCSP_RESPONSE_new())) goto err;
 111         if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
 112         if (!bs) return rsp;
 113         if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
 114         rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
 115         if (!ASN1_item_pack(bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
 116                                 goto err;
 117         return rsp;
 118 err:
 119         if (rsp) OCSP_RESPONSE_free(rsp);
 120         return NULL;
 121         }
 122
 123
 124 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
 125                                                 OCSP_CERTID *cid,
 126                                                 int status, int reason,
 127                                                 ASN1_TIME *revtime,
 128                                         ASN1_TIME *thisupd, ASN1_TIME *nextupd)
 129         {
 130         OCSP_SINGLERESP *single = NULL;
 131         OCSP_CERTSTATUS *cs;
 132         OCSP_REVOKEDINFO *ri;
 133
 134         if(!rsp->tbsResponseData->responses &&
 135             !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
 136                 goto err;
 137
 138         if (!(single = OCSP_SINGLERESP_new()))
 139                 goto err;
 140
 141
 142
 143         if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
 144                 goto err;
 145         if (nextupd &&
 146                 !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
 147                 goto err;
 148
 149         OCSP_CERTID_free(single->certId);
 150
 151         if(!(single->certId = OCSP_CERTID_dup(cid)))
 152                 goto err;
 153
 154         cs = single->certStatus;
 155         switch(cs->type = status)
 156                 {
 157         case V_OCSP_CERTSTATUS_REVOKED:
 158                 if (!revtime)
 159                         {
 160                         OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS,OCSP_R_NO_REVOKED_TIME);
 161                         goto err;
 162                         }
 163                 if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
 164                 if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
 165                         goto err;
 166                 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
 167                         {
 168                         if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
 169                                 goto err;
 170                         if (!(ASN1_ENUMERATED_set(ri->revocationReason,
 171                                                   reason)))
 172                                 goto err;
 173                         }
 174                 break;
 175
 176         case V_OCSP_CERTSTATUS_GOOD:
 177                 cs->value.good = ASN1_NULL_new();
 178                 break;
 179
 180         case V_OCSP_CERTSTATUS_UNKNOWN:
 181                 cs->value.unknown = ASN1_NULL_new();
 182                 break;
 183
 184         default:
 185                 goto err;
 186
 187                 }
 188         if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
 189                 goto err;
 190         return single;
 191 err:
 192         OCSP_SINGLERESP_free(single);
 193         return NULL;
 194         }
 195
 196 /* Add a certificate to an OCSP request */
 197
 198 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
 199         {
 200         if (!resp->certs && !(resp->certs = sk_X509_new_null()))
 201                 return 0;
 202
 203         if(!sk_X509_push(resp->certs, cert)) return 0;
 204         CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
 205         return 1;
 206         }
 207
 208 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
 209                         X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
 210                         STACK_OF(X509) *certs, unsigned long flags)
 211         {
 212         int i;
 213         OCSP_RESPID *rid;
 214
 215         if (!X509_check_private_key(signer, key))
 216                 {
 217                 OCSPerr(OCSP_F_OCSP_BASIC_SIGN, OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
 218                 goto err;
 219                 }
 220
 221         if(!(flags & OCSP_NOCERTS))
 222                 {
 223                 if(!OCSP_basic_add1_cert(brsp, signer))
 224                         goto err;
 225                 for (i = 0; i < sk_X509_num(certs); i++)
 226                         {
 227                         X509 *tmpcert = sk_X509_value(certs, i);
 228                         if(!OCSP_basic_add1_cert(brsp, tmpcert))
 229                                 goto err;
 230                         }
 231                 }
 232
 233         rid = brsp->tbsResponseData->responderId;
 234         if (flags & OCSP_RESPID_KEY)
 235                 {
 236                 unsigned char md[SHA_DIGEST_LENGTH];
 237                 X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
 238                 if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
 239                         goto err;
 240                 if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH)))
 241                                 goto err;
 242                 rid->type = V_OCSP_RESPID_KEY;
 243                 }
 244         else
 245                 {
 246                 if (!X509_NAME_set(&rid->value.byName,
 247                                         X509_get_subject_name(signer)))
 248                                 goto err;
 249                 rid->type = V_OCSP_RESPID_NAME;
 250                 }
 251
 252         if (!(flags & OCSP_NOTIME) &&
 253                 !X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0))
 254                 goto err;
 255
 256         /* Right now, I think that not doing double hashing is the right
 257            thing.       -- Richard Levitte */
 258
 259         if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
 260
 261         return 1;
 262 err:
 263         return 0;
 264         }