crypto/ocsp/ocsp_lib.c

   1 /* ocsp_lib.c */
   2 /* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
   3  * project. */
   4
   5 /* History:
   6    This file was transfered to Richard Levitte from CertCo by Kathy
   7    Weinhold in mid-spring 2000 to be included in OpenSSL or released
   8    as a patch kit. */
   9
  10 /* ====================================================================
  11  * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  *
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in
  22  *    the documentation and/or other materials provided with the
  23  *    distribution.
  24  *
  25  * 3. All advertising materials mentioning features or use of this
  26  *    software must display the following acknowledgment:
  27  *    "This product includes software developed by the OpenSSL Project
  28  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  29  *
  30  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  31  *    endorse or promote products derived from this software without
  32  *    prior written permission. For written permission, please contact
  33  *    openssl-core@openssl.org.
  34  *
  35  * 5. Products derived from this software may not be called "OpenSSL"
  36  *    nor may "OpenSSL" appear in their names without prior written
  37  *    permission of the OpenSSL Project.
  38  *
  39  * 6. Redistributions of any form whatsoever must retain the following
  40  *    acknowledgment:
  41  *    "This product includes software developed by the OpenSSL Project
  42  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  45  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  47  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  48  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  49  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  51  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  53  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  54  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  55  * OF THE POSSIBILITY OF SUCH DAMAGE.
  56  * ====================================================================
  57  *
  58  * This product includes cryptographic software written by Eric Young
  59  * (eay@cryptsoft.com).  This product includes software written by Tim
  60  * Hudson (tjh@cryptsoft.com).
  61  *
  62  */
  63
  64 #include <stdio.h>
  65 #include <cryptlib.h>
  66 #include <openssl/objects.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/pem.h>
  69 #include <openssl/x509v3.h>
  70 #include <openssl/safestack.h>
  71 #include <openssl/ocsp.h>
  72
  73 static STACK_OF(X509_EXTENSION) *ext_dup(STACK_OF(X509_EXTENSION) *fr)
  74         {
  75         int i;
  76         STACK_OF(X509_EXTENSION) *to = NULL;
  77
  78         if (!(to = sk_X509_EXTENSION_dup(fr)))
  79                 goto err;
  80         for (i = 0; i < sk_X509_EXTENSION_num(fr); i++)
  81                 {
  82                 sk_X509_EXTENSION_set(to, i,
  83                       X509_EXTENSION_dup(sk_X509_EXTENSION_value(fr, i)));
  84                 if (! sk_X509_EXTENSION_value(to, i))
  85                         goto err;
  86                 }
  87         return to;
  88 err:
  89         if (to) sk_X509_EXTENSION_pop_free(to, X509_EXTENSION_free);
  90         return NULL;
  91         }
  92
  93 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
  94                               X509_NAME *issuerName,
  95                               ASN1_BIT_STRING* issuerKey,
  96                               ASN1_INTEGER *serialNumber)
  97         {
  98         int nid;
  99         unsigned int i;
 100         X509_ALGOR *alg;
 101         OCSP_CERTID *cid = NULL;
 102         unsigned char md[EVP_MAX_MD_SIZE];
 103         EVP_MD_CTX ctx;
 104
 105         if (!(cid = OCSP_CERTID_new())) goto err;
 106
 107         alg = cid->hashAlgorithm;
 108         if (alg->algorithm != NULL) ASN1_OBJECT_free(alg->algorithm);
 109         if ((nid = EVP_MD_type(dgst)) == NID_undef)
 110                 {
 111                 OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_UNKNOWN_NID);
 112                 goto err;
 113                 }
 114         if (!(alg->algorithm=OBJ_nid2obj(nid))) goto err;
 115         if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err;
 116         alg->parameter->type=V_ASN1_NULL;
 117
 118         if (!X509_NAME_digest(issuerName, dgst, md, &i)) goto digerr;
 119         if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) goto err;
 120
 121         /* Calculate the issuerKey hash, excluding tag and length */
 122         EVP_DigestInit(&ctx,dgst);
 123         EVP_DigestUpdate(&ctx,issuerKey->data, issuerKey->length);
 124         EVP_DigestFinal(&ctx,md,&i);
 125
 126         if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) goto err;
 127
 128         if (cid->serialNumber != NULL) ASN1_INTEGER_free(cid->serialNumber);
 129         if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) goto err;
 130         return cid;
 131 digerr:
 132         OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_DIGEST_ERR);
 133 err:
 134         if (cid) OCSP_CERTID_free(cid);
 135         return NULL;
 136         }
 137
 138 OCSP_CERTSTATUS *OCSP_cert_status_new(int status, int reason, char *tim)
 139         {
 140         OCSP_REVOKEDINFO *ri;
 141         OCSP_CERTSTATUS *cs = NULL;
 142
 143         if (!(cs = OCSP_CERTSTATUS_new())) goto err;
 144         if ((cs->type = status) == V_OCSP_CERTSTATUS_REVOKED)
 145                 {
 146                 if (!time)
 147                         {
 148                         OCSPerr(OCSP_F_CERT_STATUS_NEW,OCSP_R_REVOKED_NO_TIME);
 149                         goto err;
 150                         }
 151                 if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
 152                 if (!ASN1_GENERALIZEDTIME_set_string(ri->revocationTime,tim))
 153                         goto err;
 154                 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
 155                         {
 156                         if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
 157                                 goto err;
 158                         if (!(ASN1_ENUMERATED_set(ri->revocationReason,
 159                                                   reason)))
 160                                 goto err;
 161                         }
 162                 }
 163         return cs;
 164 err:
 165         if (cs) OCSP_CERTSTATUS_free(cs);
 166         return NULL;
 167         }
 168
 169 OCSP_REQUEST *OCSP_request_new(X509_NAME* name,
 170                                STACK_OF(X509_EXTENSION) *extensions)
 171         {
 172         OCSP_REQUEST *req = NULL;
 173
 174         if ((req = OCSP_REQUEST_new()) == NULL) goto err;
 175         if (name) /* optional */
 176                 {
 177                 if (!(req->tbsRequest->requestorName=GENERAL_NAME_new()))
 178                         goto err;
 179                 req->tbsRequest->requestorName->type = GEN_DIRNAME;
 180                 req->tbsRequest->requestorName->d.dirn = X509_NAME_dup(name);
 181                 }
 182         if (!(req->tbsRequest->requestList = sk_OCSP_ONEREQ_new(NULL))) goto err;
 183         if (extensions &&
 184             (!(req->tbsRequest->requestExtensions = ext_dup(extensions))))
 185                 goto err;
 186         return req;
 187 err:
 188         if (req) OCSP_REQUEST_free(req);
 189         return NULL;
 190         }
 191
 192 int OCSP_request_add(OCSP_REQUEST             *req,
 193                      OCSP_CERTID              *cid,
 194                      STACK_OF(X509_EXTENSION) *extensions)
 195         {
 196         OCSP_ONEREQ *one = NULL;
 197
 198         if (!(one = OCSP_ONEREQ_new())) goto err;
 199         if (one->reqCert) OCSP_CERTID_free(one->reqCert);
 200         if (!(one->reqCert = OCSP_CERTID_dup(cid))) goto err;
 201         if (extensions&&(!(one->singleRequestExtensions=ext_dup(extensions))))
 202                 goto err;
 203         if (!sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one)) goto err;
 204         return 1;
 205 err:
 206         if (one) OCSP_ONEREQ_free(one);
 207         return 0;
 208         }
 209
 210 int OCSP_request_sign(OCSP_REQUEST   *req,
 211                       EVP_PKEY       *key,
 212                       const EVP_MD   *dgst,
 213                       STACK_OF(X509) *certs)
 214         {
 215         int i;
 216         OCSP_SIGNATURE *sig;
 217
 218         if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err;
 219         if (!OCSP_REQUEST_sign(req, key, dgst)) goto err;
 220         if (certs)
 221                 {
 222                 if (!(sig->certs = sk_X509_dup(certs))) goto err;
 223                 for (i = 0; i < sk_X509_num(sig->certs); i++)
 224                         {
 225                         sk_X509_set(sig->certs, i,
 226                                X509_dup(sk_X509_value(certs,i)));
 227                         if (! sk_X509_value(sig->certs, i))
 228                               goto err;
 229                         }
 230                 }
 231         return 1;
 232 err:
 233         if (req->optionalSignature)
 234                 {
 235                 OCSP_SIGNATURE_free(req->optionalSignature);
 236                 req->optionalSignature = NULL;
 237                 }
 238         return 0;
 239         }
 240
 241 OCSP_BASICRESP *OCSP_basic_response_new(int type,
 242                                         X509* cert,
 243                                         STACK_OF(X509_EXTENSION) *extensions)
 244         {
 245         time_t t;
 246         OCSP_RESPID *rid;
 247         ASN1_BIT_STRING *bs;
 248         OCSP_BASICRESP *rsp = NULL;
 249         unsigned char md[SHA_DIGEST_LENGTH];
 250
 251         if (!(rsp = OCSP_BASICRESP_new())) goto err;
 252         rid = rsp->tbsResponseData->responderId;
 253         switch (rid->type = type)
 254                 {
 255                 case V_OCSP_RESPID_NAME:
 256                         /* cert is user cert */
 257                         if (!(rid->value.byName =
 258                                   X509_NAME_dup(X509_get_subject_name(cert))))
 259                                 goto err;
 260                         break;
 261                 case V_OCSP_RESPID_KEY:
 262                         /* cert is issuer cert */
 263                         /* SHA-1 hash of responder's public key
 264                          * (excluding the tag and length fields)
 265                          */
 266                         bs = cert->cert_info->key->public_key;
 267                         SHA1(ASN1_STRING_data((ASN1_STRING*)bs),
 268                              ASN1_STRING_length((ASN1_STRING*)bs), md);
 269                         if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
 270                                 goto err;
 271                         if (!(ASN1_OCTET_STRING_set(rid->value.byKey,
 272                                                     md, sizeof md)))
 273                                 goto err;
 274                         break;
 275                 default:
 276                         OCSPerr(OCSP_F_BASIC_RESPONSE_NEW,OCSP_R_BAD_TAG);
 277                         goto err;
 278                         break;
 279                 }
 280         time(&t);
 281         if (!(ASN1_GENERALIZEDTIME_set(rsp->tbsResponseData->producedAt, t)))
 282                 goto err;
 283         if (!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new(NULL))) goto err;
 284         if (extensions && (!(rsp->tbsResponseData->responseExtensions =
 285                                               ext_dup(extensions))))
 286                 goto err;
 287         return rsp;
 288 err:
 289         if (rsp) OCSP_BASICRESP_free(rsp);
 290         return NULL;
 291         }
 292
 293 int OCSP_basic_response_add(OCSP_BASICRESP           *rsp,
 294                             OCSP_CERTID              *cid,
 295                             OCSP_CERTSTATUS          *cst,
 296                             char                     *this,
 297                             char                     *next,
 298                             STACK_OF(X509_EXTENSION) *extensions)
 299         {
 300         OCSP_SINGLERESP *single = NULL;
 301
 302         if (!(single = OCSP_SINGLERESP_new())) goto err;
 303         if (single->certId) OCSP_CERTID_free(single->certId);
 304         if (!(single->certId = OCSP_CERTID_dup(cid))) goto err;
 305         if (single->certStatus) OCSP_CERTSTATUS_free(single->certStatus);
 306         if (!(single->certStatus = OCSP_CERTSTATUS_dup(cst))) goto err;
 307         if (!ASN1_GENERALIZEDTIME_set_string(single->thisUpdate,this))goto err;
 308         if (next)
 309                 {
 310                 if (!(single->nextUpdate = ASN1_GENERALIZEDTIME_new()))
 311                         goto err;
 312                 if (!ASN1_GENERALIZEDTIME_set_string(single->nextUpdate,next))
 313                         goto err;
 314                 }
 315         if (extensions && (!(single->singleExtensions = ext_dup(extensions))))
 316                 goto err;
 317         if (!sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses,single)) goto err;
 318         return 1;
 319 err:
 320         if (single) OCSP_SINGLERESP_free(single);
 321         return 0;
 322         }
 323
 324 int OCSP_basic_response_sign(OCSP_BASICRESP *brsp,
 325                              EVP_PKEY       *key,
 326                              const EVP_MD   *dgst,
 327                              STACK_OF(X509) *certs)
 328         {
 329         int i;
 330
 331         /* Right now, I think that not doing double hashing is the right
 332            thing.       -- Richard Levitte */
 333         if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
 334         if (certs)
 335                 {
 336                 if (!(brsp->certs = sk_X509_dup(certs))) goto err;
 337                 for (i = 0; i < sk_X509_num(brsp->certs); i++)
 338                         {
 339                         sk_X509_set(brsp->certs, i,
 340                                X509_dup(sk_X509_value(certs, i)));
 341                         if (! sk_X509_value(brsp->certs, i))
 342                                 goto err;
 343                         }
 344                 }
 345         return 1;
 346 err:
 347         return 0;
 348         }
 349
 350 OCSP_RESPONSE *OCSP_response_new(int status,
 351                                  int nid,
 352                                  int (*i2d)(),
 353                                  char *data)
 354         {
 355         OCSP_RESPONSE *rsp = NULL;
 356
 357         if (!(rsp = OCSP_RESPONSE_new())) goto err;
 358         if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
 359         if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
 360         if (rsp->responseBytes->responseType) ASN1_OBJECT_free(rsp->responseBytes->responseType);
 361         if (!(rsp->responseBytes->responseType = OBJ_nid2obj(nid))) goto err;
 362         if (!ASN1_STRING_encode((ASN1_STRING*)rsp->responseBytes->response,
 363                                 i2d, data, NULL)) goto err;
 364         return rsp;
 365 err:
 366         if (rsp) OCSP_RESPONSE_free(rsp);
 367         return NULL;
 368         }
 369
 370 char* ocspResponseStatus2string(long s)
 371         {
 372         static struct { long t; char *m; } ts[6]= {
 373                 { OCSP_RESPONSE_STATUS_SUCCESSFULL, "successful" },
 374                 { OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, "malformedrequest" },
 375                 { OCSP_RESPONSE_STATUS_INTERNALERROR, "internalerror" },
 376                 { OCSP_RESPONSE_STATUS_TRYLATER, "trylater" },
 377                 { OCSP_RESPONSE_STATUS_SIGREQUIRED, "sigrequired" },
 378                 { OCSP_RESPONSE_STATUS_UNAUTHORIZED, "unauthorized" } }, *p;
 379         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 380                 if (p->t == s)
 381                          return p->m;
 382         return "(UNKNOWN)";
 383         }
 384
 385 char* ocspCertStatus2string(long s)
 386         {
 387         static struct { long t; char *m; } ts[3]= {
 388                 { V_OCSP_CERTSTATUS_GOOD, "good" },
 389                 { V_OCSP_CERTSTATUS_REVOKED, "revoked" },
 390                 { V_OCSP_CERTSTATUS_UNKNOWN, "unknown" } }, *p;
 391         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 392                 if (p->t == s)
 393                          return p->m;
 394         return "(UNKNOWN)";
 395         }
 396
 397 char * cRLReason2string(long s)
 398         {
 399         static struct { long t; char *m; } ts[8]= {
 400           { OCSP_REVOKED_STATUS_UNSPECIFIED, "unspecified" },
 401           { OCSP_REVOKED_STATUS_KEYCOMPROMISE, "keyCompromise" },
 402           { OCSP_REVOKED_STATUS_CACOMPROMISE, "cACompromise" },
 403           { OCSP_REVOKED_STATUS_AFFILIATIONCHANGED, "affiliationChanged" },
 404           { OCSP_REVOKED_STATUS_SUPERSEDED, "superseded" },
 405           { OCSP_REVOKED_STATUS_CESSATIONOFOPERATION, "cessationOfOperation" },
 406           { OCSP_REVOKED_STATUS_CERTIFICATEHOLD, "certificateHold" },
 407           { OCSP_REVOKED_STATUS_REMOVEFROMCRL, "removeFromCRL" } }, *p;
 408         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 409                 if (p->t == s)
 410                          return p->m;
 411         return "(UNKNOWN)";
 412         }
 413
 414 static int i2a_GENERAL_NAME(bp,n)
 415 BIO *bp;
 416 GENERAL_NAME *n;
 417         {
 418         int j;
 419         char *p;
 420
 421         if (n == NULL) return(0);
 422
 423         switch (n->type)
 424                 {
 425
 426         case GEN_DIRNAME:
 427                 X509_NAME_print(bp,n->d.dirn,16);
 428                 break;
 429
 430         case GEN_EMAIL:
 431         case GEN_DNS:
 432         case GEN_URI:
 433         case GEN_IPADD:
 434                 p=(char *)n->d.ip->data;
 435                 for (j=n->d.ip->length;j>0;j--)
 436                         {
 437                         if ((*p >= ' ') && (*p <= '~'))
 438                                 BIO_printf(bp,"%c",*p);
 439                         else if (*p & 0x80)
 440                                 BIO_printf(bp,"\\0x%02X",*p);
 441                         else if ((unsigned char)*p == 0xf7)
 442                                 BIO_printf(bp,"^?");
 443                         else    BIO_printf(bp,"^%c",*p+'@');
 444                         p++;
 445                         }
 446                 break;
 447
 448         case GEN_RID:
 449                 i2a_ASN1_OBJECT(bp, n->d.rid);
 450                 break;
 451
 452         /* XXX these are legit, need to support at some time... */
 453         case GEN_OTHERNAME:
 454         case GEN_X400:
 455         case GEN_EDIPARTY:
 456         default:
 457                 return 0;
 458                 }
 459
 460         return 1;
 461         }
 462
 463
 464 int OCSP_REQUEST_print(bp, o)
 465 BIO *bp;
 466 OCSP_REQUEST* o;
 467         {
 468         int i,j,n;
 469         long l;
 470         char *s;
 471         OCSP_CERTID* cid = NULL;
 472         OCSP_ONEREQ *one = NULL;
 473         OCSP_REQINFO *inf = o->tbsRequest;
 474         OCSP_SIGNATURE *sig = o->optionalSignature;
 475
 476         if (BIO_write(bp,"OCSP Request Data:\n",19) <= 0) goto err;
 477         l=ASN1_INTEGER_get(inf->version);
 478         if (BIO_printf(bp,"%4sVersion: %lu (0x%lx)","",l+1,l) <= 0) goto err;
 479         if (inf->requestorName != NULL)
 480                 {
 481                 if (BIO_write(bp,"\n    Requestor Name: ",21) <= 0)
 482                         goto err;
 483                 i2a_GENERAL_NAME(bp, inf->requestorName);
 484                 }
 485         if (BIO_write(bp,"\n    Requestor List:\n",21) <= 0) goto err;
 486         for (i = 0; i < sk_OCSP_ONEREQ_num(inf->requestList); i++)
 487                 {
 488                 if (! sk_OCSP_ONEREQ_value(inf->requestList, i)) continue;
 489                 one = sk_OCSP_ONEREQ_value(inf->requestList, i);
 490                 cid = one->reqCert;
 491                 j=OBJ_obj2nid(cid->hashAlgorithm->algorithm);
 492                 if (BIO_printf(bp,"%8sHash Algorithm: %s","",
 493                                (j == NID_undef)?"UNKNOWN":OBJ_nid2ln(j)) <= 0)
 494                         goto err;
 495                 if (BIO_write(bp,"\n        Issuer Name Hash: ",27) <= 0)
 496                         goto err;
 497                 i2a_ASN1_STRING(bp, cid->issuerNameHash, V_ASN1_OCTET_STRING);
 498                 if (BIO_write(bp,"\n        Issuer Key Hash: ",26) <= 0)
 499                         goto err;
 500                 i2a_ASN1_STRING(bp, cid->issuerKeyHash, V_ASN1_OCTET_STRING);
 501                 if (BIO_write(bp,"\n        Serial Number: ",24) <= 0)
 502                         goto err;
 503                 if (!i2a_ASN1_INTEGER(bp, cid->serialNumber))
 504                         goto err;
 505                 if (!BIO_write(bp,"\n",1)) goto err;
 506                 if (!OCSP_extensions_print(bp, one->singleRequestExtensions,
 507                                            "Request Single Extensions"))
 508                         goto err;
 509                 }
 510         if (!OCSP_extensions_print(bp, inf->requestExtensions,
 511                                    "Request Extensions"))
 512                 goto err;
 513         if (sig)
 514                 {
 515                 i=OBJ_obj2nid(sig->signatureAlgorithm->algorithm);
 516                 if (BIO_printf(bp,"OCSP Request Signature Algorithm: %s",
 517                                (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 518                         goto err;
 519                 n=sig->signature->length;
 520                 s=(char *)sig->signature->data;
 521                 for (i=0; i<n; i++)
 522                         {
 523                         if ((i%18) == 0)
 524                         if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 525                         if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 526                                 ((i+1) == n)?"":":") <= 0) goto err;
 527                         }
 528                 if (BIO_write(bp,"\n",1) != 1) goto err;
 529                 if (sig->certs)
 530                         {
 531                         for (i=0; i<sk_X509_num(sig->certs); i++)
 532                                 if (sk_X509_value(sig->certs,i) != NULL)
 533                                         X509_print(bp,
 534                                             sk_X509_value(sig->certs,i));
 535                         }
 536                 }
 537         return 1;
 538 err:
 539         return 0;
 540         }
 541
 542 int OCSP_RESPONSE_print(BIO *bp, OCSP_RESPONSE* o)
 543         {
 544         int i, j, n;
 545         long l;
 546         char *s;
 547         unsigned char *p;
 548         OCSP_CERTID *cid = NULL;
 549         OCSP_BASICRESP *br = NULL;
 550         OCSP_RESPDATA  *rd = NULL;
 551         OCSP_CERTSTATUS *cst = NULL;
 552         OCSP_REVOKEDINFO *rev = NULL;
 553         OCSP_SINGLERESP *single = NULL;
 554         OCSP_RESPBYTES *rb = o->responseBytes;
 555
 556         l=ASN1_ENUMERATED_get(o->responseStatus);
 557         if (BIO_printf(bp,"OCSP Response Status: %s (0x%x)\n",
 558                        ocspResponseStatus2string(l), l) <= 0) goto err;
 559         if (rb == NULL) return 1;
 560         i=OBJ_obj2nid(rb->responseType);
 561         if (BIO_printf(bp,"OCSP Response Bytes Response Type: %s",
 562                        (i == NID_undef)?"UNKNOWN":OBJ_nid2sn(i)) <= 0)
 563                 goto err;
 564         if (i != NID_id_pkix_OCSP_basic)
 565                 {
 566                 BIO_printf(bp," (unknown response type)\n");
 567                 return 1;
 568                 }
 569         p = ASN1_STRING_data(rb->response);
 570         i = ASN1_STRING_length(rb->response);
 571         if (!(d2i_OCSP_BASICRESP(&br, &p, i))) goto err;
 572         rd = br->tbsResponseData;
 573         l=ASN1_INTEGER_get(rd->version);
 574         if (BIO_printf(bp,"\nBasic Response Data Version: %lu (0x%lx)\n",
 575                        l+1,l) <= 0) goto err;
 576         if (BIO_printf(bp,"Basic Response Data Responder Id: ") <= 0) goto err;
 577         i2a_OCSP_RESPID(bp, rd->responderId);
 578         if (BIO_printf(bp,"\nBasic Response Data Produced At: ")<=0) goto err;
 579         if (!ASN1_GENERALIZEDTIME_print(bp, rd->producedAt)) goto err;
 580         if (BIO_printf(bp,"\nBasic Response Data Responses:\n") <= 0) goto err;
 581         for (i = 0; i < sk_OCSP_SINGLERESP_num(rd->responses); i++)
 582                 {
 583                 if (! sk_OCSP_SINGLERESP_value(rd->responses, i)) continue;
 584                 single = sk_OCSP_SINGLERESP_value(rd->responses, i);
 585                 cid = single->certId;
 586                 j=OBJ_obj2nid(cid->hashAlgorithm->algorithm);
 587                 if (BIO_printf(bp,"    Cert Id:") <= 0) goto err;
 588                 if (BIO_printf(bp,"\n%8sHash Algorithm: %s","",
 589                                (j == NID_undef)?"UNKNOWN":OBJ_nid2ln(j)) <= 0)
 590                         goto err;
 591                 if (BIO_write(bp,"\n        Issuer Name Hash: ",27) <= 0)
 592                         goto err;
 593                 i2a_ASN1_STRING(bp, cid->issuerNameHash, V_ASN1_OCTET_STRING);
 594                 if (BIO_write(bp,"\n        Issuer Key Hash: ",26) <= 0)
 595                         goto err;
 596                 i2a_ASN1_STRING(bp, cid->issuerKeyHash, V_ASN1_OCTET_STRING);
 597                 if (BIO_write(bp,"\n        Serial Number: ",24) <= 0)
 598                         goto err;
 599                 if (!i2a_ASN1_INTEGER(bp, cid->serialNumber))
 600                         goto err;
 601                 cst = single->certStatus;
 602                 if (BIO_printf(bp,"\n    Cert Status: %s (0x%x)",
 603                                ocspCertStatus2string(cst->type), cst->type) <= 0)
 604                         goto err;
 605                 if (cst->type == V_OCSP_CERTSTATUS_REVOKED)
 606                         {
 607                         rev = cst->value.revoked;
 608                         if (BIO_printf(bp, "\n    Revocation Time: ") <= 0)
 609                                 goto err;
 610                         if (!ASN1_GENERALIZEDTIME_print(bp,
 611                                                         rev->revocationTime))
 612                                 goto err;
 613                         if (rev->revocationReason)
 614                                 {
 615                                 l=ASN1_ENUMERATED_get(rev->revocationReason);
 616                                 if (BIO_printf(bp,
 617                                          "\n    Revocation Reason: %s (0x%x)",
 618                                                cRLReason2string(l), l) <= 0)
 619                                         goto err;
 620                                 }
 621                         }
 622                 if (BIO_printf(bp,"\n    This Update: ") <= 0) goto err;
 623                 if (!ASN1_GENERALIZEDTIME_print(bp, single->thisUpdate))
 624                         goto err;
 625                 if (single->nextUpdate)
 626                         {
 627                         if (BIO_printf(bp,"\n    Next Update: ") <= 0)goto err;
 628                         if (!ASN1_GENERALIZEDTIME_print(bp,single->nextUpdate))
 629                                 goto err;
 630                         }
 631                 if (!BIO_write(bp,"\n",1)) goto err;
 632                 if (!OCSP_extensions_print(bp, single->singleExtensions,
 633                                            "Basic Response Single Extensions"))
 634                         goto err;
 635                 }
 636         if (!OCSP_extensions_print(bp, rd->responseExtensions,
 637                                    "Basic Response Extensions")) goto err;
 638         i=OBJ_obj2nid(br->signatureAlgorithm->algorithm);
 639         if (BIO_printf(bp,"Basic Response Signature Algorithm: %s",
 640                        (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 641                 goto err;
 642         n=br->signature->length;
 643         s=(char *)br->signature->data;
 644         for (i=0; i<n; i++)
 645                 {
 646                 if ((i%18) == 0)
 647                 if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 648                 if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 649                         ((i+1) == n)?"":":") <= 0) goto err;
 650                 }
 651         if (BIO_write(bp,"\n",1) != 1) goto err;
 652         if (br->certs)
 653                 {
 654                 for (i=0; i<sk_X509_num(br->certs); i++)
 655                         if (sk_X509_value(br->certs,i) != NULL) {
 656                                 X509_print(bp, sk_X509_value(br->certs,i));
 657                                 PEM_write_bio_X509(bp,sk_X509_value(br->certs,i));
 658                         }
 659                 }
 660         return 1;
 661 err:
 662         return 0;
 663         }
 664
 665 int OCSP_CRLID_print(BIO *bp, OCSP_CRLID *a, int ind)
 666         {
 667         if (a->crlUrl)
 668                 {
 669                 if (!BIO_printf(bp, "%*scrlUrl: ", ind, "")) goto err;
 670                 if (!ASN1_STRING_print(bp, (ASN1_STRING*)a->crlUrl)) goto err;
 671                 if (!BIO_write(bp, "\n", 1)) goto err;
 672                 }
 673         if (a->crlNum)
 674                 {
 675                 if (!BIO_printf(bp, "%*scrlNum: ", ind, "")) goto err;
 676                 if (!i2a_ASN1_INTEGER(bp, a->crlNum)) goto err;
 677                 if (!BIO_write(bp, "\n", 1)) goto err;
 678                 }
 679         if (a->crlTime)
 680                 {
 681                 if (!BIO_printf(bp, "%*scrlTime: ", ind, "")) goto err;
 682                 if (!ASN1_GENERALIZEDTIME_print(bp, a->crlTime)) goto err;
 683                 if (!BIO_write(bp, "\n", 1)) goto err;
 684                 }
 685         return 1;
 686 err:
 687         return 0;
 688         }
 689
 690 int OCSP_SERVICELOC_print(BIO *bp, OCSP_SERVICELOC* a, int ind)
 691         {
 692         int i, j;
 693         ACCESS_DESCRIPTION *ad;
 694
 695         if (BIO_printf(bp, "%*sissuer: ", ind, "") <= 0) goto err;
 696         if (X509_NAME_print(bp, a->issuer, 16) <= 0) goto err;
 697         if (BIO_printf(bp, "\n", 1) <= 0) goto err;
 698
 699                 /* Service locator is optional */
 700                 if (a->locator != NULL) {
 701                         if (BIO_printf(bp, "%*slocator:\n", ind, "") <= 0) goto err;
 702                         for (i = 0; i < sk_ACCESS_DESCRIPTION_num(a->locator); i++)
 703                 {
 704                                 ad = sk_ACCESS_DESCRIPTION_value(a->locator,i);
 705                                 if (BIO_printf(bp, "%*smethod: ", (2*ind), "") <= 0)
 706                                         goto err;
 707                                 j=OBJ_obj2nid(ad->method);
 708                                 if (BIO_printf(bp,"%s", (j == NID_undef)?"UNKNOWN":
 709                                                            OBJ_nid2ln(j)) <= 0)
 710                                         goto err;
 711                                 if (BIO_printf(bp, "\n%*sname: ", (2*ind), "") <= 0)
 712                                         goto err;
 713                                 if (i2a_GENERAL_NAME(bp, ad->location) <= 0) goto err;
 714                                 if (BIO_write(bp, "\n", 1) <= 0) goto err;
 715                         }
 716                 }
 717         return 1;
 718 err:
 719         return 0;
 720         }
 721
 722 /* XXX assumes certs in signature are sorted root to leaf XXX */
 723 int OCSP_request_verify(OCSP_REQUEST *req, EVP_PKEY *pkey)
 724         {
 725         STACK_OF(X509) *sk;
 726
 727         if (!req->optionalSignature) return 0;
 728         if (pkey == NULL)
 729                 {
 730                 if (!(sk = req->optionalSignature->certs)) return 0;
 731                 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
 732                         {
 733                         OCSPerr(OCSP_F_REQUEST_VERIFY,OCSP_R_NO_PUBLIC_KEY);
 734                         return 0;
 735                         }
 736                 }
 737         return OCSP_REQUEST_verify(req, pkey);
 738         }
 739
 740 int OCSP_response_verify(OCSP_RESPONSE *rsp, EVP_PKEY *pkey)
 741         {
 742         int i, r;
 743         unsigned char *p;
 744         OCSP_RESPBYTES *rb;
 745         OCSP_BASICRESP *br = NULL;
 746
 747         if ((rb = rsp->responseBytes) == NULL)
 748                 {
 749                 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_NO_RESPONSE_DATA);
 750                 return 0;
 751                 }
 752         if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
 753                 {
 754                 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_BAD_TAG);
 755                 return 0;
 756                 }
 757         p = ASN1_STRING_data(rb->response);
 758         i = ASN1_STRING_length(rb->response);
 759         if (!(d2i_OCSP_BASICRESP(&br, &p, i))) return 0;
 760         r = OCSP_basic_response_verify(br, pkey);
 761         OCSP_BASICRESP_free(br);
 762         return r;
 763         }
 764
 765 int OCSP_basic_response_verify(OCSP_BASICRESP *rsp, EVP_PKEY *pkey)
 766         {
 767         STACK_OF(X509) *sk;
 768         int ret;
 769
 770         if (!rsp->signature)
 771                 {
 772                 OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_SIGNATURE);
 773                 return 0;
 774                 }
 775         if (pkey == NULL)
 776                 {
 777                 if (!(sk = rsp->certs))
 778                         {
 779                         OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_CERTIFICATE);
 780                         return 0;
 781                         }
 782                 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
 783                         {
 784                         OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_PUBLIC_KEY);
 785                         return 0;
 786                         }
 787                 }
 788         ret = OCSP_BASICRESP_verify(rsp, pkey, 0);
 789         return ret;
 790         }