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/asn1_mac.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/pem.h>
  70 #include <openssl/x509v3.h>
  71 #include <openssl/safestack.h>
  72 #include <openssl/ocsp.h>
  73
  74 static STACK_OF(X509_EXTENSION) *ext_dup(STACK_OF(X509_EXTENSION) *fr)
  75         {
  76         int i;
  77         STACK_OF(X509_EXTENSION) *to = NULL;
  78
  79         if (!(to = sk_X509_EXTENSION_dup(fr)))
  80                 goto err;
  81         for (i = 0; i < sk_X509_EXTENSION_num(fr); i++)
  82                 {
  83                 sk_X509_EXTENSION_set(to, i,
  84                       X509_EXTENSION_dup(sk_X509_EXTENSION_value(fr, i)));
  85                 if (! sk_X509_EXTENSION_value(to, i))
  86                         goto err;
  87                 }
  88         return to;
  89 err:
  90         if (to) sk_X509_EXTENSION_pop_free(to, X509_EXTENSION_free);
  91         return NULL;
  92         }
  93
  94 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
  95                               X509_NAME *issuerName,
  96                               ASN1_BIT_STRING* issuerKey,
  97                               ASN1_INTEGER *serialNumber)
  98         {
  99         int nid;
 100         unsigned int i;
 101         X509_ALGOR *alg;
 102         OCSP_CERTID *cid = NULL;
 103         unsigned char md[EVP_MAX_MD_SIZE];
 104         EVP_MD_CTX ctx;
 105
 106         if (!(cid = OCSP_CERTID_new())) goto err;
 107
 108         alg = cid->hashAlgorithm;
 109         if (alg->algorithm != NULL) ASN1_OBJECT_free(alg->algorithm);
 110         if ((nid = EVP_MD_type(dgst)) == NID_undef)
 111                 {
 112                 OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_UNKNOWN_NID);
 113                 goto err;
 114                 }
 115         if (!(alg->algorithm=OBJ_nid2obj(nid))) goto err;
 116         if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err;
 117         alg->parameter->type=V_ASN1_NULL;
 118
 119         if (!X509_NAME_digest(issuerName, dgst, md, &i)) goto digerr;
 120         if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) goto err;
 121
 122         /* Calculate the issuerKey hash, excluding tag and length */
 123         EVP_DigestInit(&ctx,dgst);
 124         EVP_DigestUpdate(&ctx,issuerKey->data, issuerKey->length);
 125         EVP_DigestFinal(&ctx,md,&i);
 126
 127         if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) goto err;
 128
 129         if (cid->serialNumber != NULL) ASN1_INTEGER_free(cid->serialNumber);
 130         if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) goto err;
 131         return cid;
 132 digerr:
 133         OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_DIGEST_ERR);
 134 err:
 135         if (cid) OCSP_CERTID_free(cid);
 136         return NULL;
 137         }
 138
 139 OCSP_CERTSTATUS *OCSP_cert_status_new(int status, int reason, char *tim)
 140         {
 141         OCSP_REVOKEDINFO *ri;
 142         OCSP_CERTSTATUS *cs = NULL;
 143
 144         if (!(cs = OCSP_CERTSTATUS_new())) goto err;
 145         if ((cs->tag = status) == V_OCSP_CERTSTATUS_REVOKED)
 146                 {
 147                 if (!time)
 148                         {
 149                         OCSPerr(OCSP_F_CERT_STATUS_NEW,OCSP_R_REVOKED_NO_TIME);
 150                         goto err;
 151                         }
 152                 if (!(cs->revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
 153                 if (!ASN1_GENERALIZEDTIME_set_string(ri->revocationTime,tim))
 154                         goto err;
 155                 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
 156                         {
 157                         if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
 158                                 goto err;
 159                         if (!(ASN1_ENUMERATED_set(ri->revocationReason,
 160                                                   reason)))
 161                                 goto err;
 162                         }
 163                 }
 164         return cs;
 165 err:
 166         if (cs) OCSP_CERTSTATUS_free(cs);
 167         return NULL;
 168         }
 169
 170 OCSP_REQUEST *OCSP_request_new(X509_NAME* name,
 171                                STACK_OF(X509_EXTENSION) *extensions)
 172         {
 173         OCSP_REQUEST *req = NULL;
 174
 175         if ((req = OCSP_REQUEST_new()) == NULL) goto err;
 176         if (name) /* optional */
 177                 {
 178                 if (!(req->tbsRequest->requestorName=GENERAL_NAME_new()))
 179                         goto err;
 180                 req->tbsRequest->requestorName->type = GEN_DIRNAME;
 181                 req->tbsRequest->requestorName->d.dirn = X509_NAME_dup(name);
 182                 }
 183         if (!(req->tbsRequest->requestList = sk_OCSP_ONEREQ_new(NULL))) goto err;
 184         if (extensions &&
 185             (!(req->tbsRequest->requestExtensions = ext_dup(extensions))))
 186                 goto err;
 187         return req;
 188 err:
 189         if (req) OCSP_REQUEST_free(req);
 190         return NULL;
 191         }
 192
 193 int OCSP_request_add(OCSP_REQUEST             *req,
 194                      OCSP_CERTID              *cid,
 195                      STACK_OF(X509_EXTENSION) *extensions)
 196         {
 197         OCSP_ONEREQ *one = NULL;
 198
 199         if (!(one = OCSP_ONEREQ_new())) goto err;
 200         if (one->reqCert) OCSP_CERTID_free(one->reqCert);
 201         if (!(one->reqCert = OCSP_CERTID_dup(cid))) goto err;
 202         if (extensions&&(!(one->singleRequestExtensions=ext_dup(extensions))))
 203                 goto err;
 204         if (!sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one)) goto err;
 205         return 1;
 206 err:
 207         if (one) OCSP_ONEREQ_free(one);
 208         return 0;
 209         }
 210
 211 int OCSP_request_sign(OCSP_REQUEST   *req,
 212                       EVP_PKEY       *key,
 213                       const EVP_MD   *dgst,
 214                       STACK_OF(X509) *certs)
 215         {
 216         int i;
 217         OCSP_SIGNATURE *sig;
 218
 219         if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err;
 220         if (!OCSP_REQUEST_sign(req, key, dgst)) goto err;
 221         if (certs)
 222                 {
 223                 if (!(sig->certs = sk_X509_dup(certs))) goto err;
 224                 for (i = 0; i < sk_X509_num(sig->certs); i++)
 225                         {
 226                         sk_X509_set(sig->certs, i,
 227                                X509_dup(sk_X509_value(certs,i)));
 228                         if (! sk_X509_value(sig->certs, i))
 229                               goto err;
 230                         }
 231                 }
 232         return 1;
 233 err:
 234         if (req->optionalSignature)
 235                 {
 236                 OCSP_SIGNATURE_free(req->optionalSignature);
 237                 req->optionalSignature = NULL;
 238                 }
 239         return 0;
 240         }
 241
 242 OCSP_BASICRESP *OCSP_basic_response_new(int tag,
 243                                         X509* cert,
 244                                         STACK_OF(X509_EXTENSION) *extensions)
 245         {
 246         time_t t;
 247         OCSP_RESPID *rid;
 248         ASN1_BIT_STRING *bs;
 249         OCSP_BASICRESP *rsp = NULL;
 250         unsigned char md[SHA_DIGEST_LENGTH];
 251
 252         if (!(rsp = OCSP_BASICRESP_new())) goto err;
 253         rid = rsp->tbsResponseData->responderId;
 254         switch (rid->tag = tag)
 255                 {
 256                 case V_OCSP_RESPID_NAME:
 257                         /* cert is user cert */
 258                         if (!(rid->value.byName =
 259                                   X509_NAME_dup(X509_get_subject_name(cert))))
 260                                 goto err;
 261                         break;
 262                 case V_OCSP_RESPID_KEY:
 263                         /* cert is issuer cert */
 264                         /* SHA-1 hash of responder's public key
 265                          * (excluding the tag and length fields)
 266                          */
 267                         bs = cert->cert_info->key->public_key;
 268                         SHA1(ASN1_STRING_data((ASN1_STRING*)bs),
 269                              ASN1_STRING_length((ASN1_STRING*)bs), md);
 270                         if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
 271                                 goto err;
 272                         if (!(ASN1_OCTET_STRING_set(rid->value.byKey,
 273                                                     md, sizeof md)))
 274                                 goto err;
 275                         break;
 276                 default:
 277                         OCSPerr(OCSP_F_BASIC_RESPONSE_NEW,OCSP_R_BAD_TAG);
 278                         goto err;
 279                         break;
 280                 }
 281         time(&t);
 282         if (!(ASN1_GENERALIZEDTIME_set(rsp->tbsResponseData->producedAt, t)))
 283                 goto err;
 284         if (!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new(NULL))) goto err;
 285         if (extensions && (!(rsp->tbsResponseData->responseExtensions =
 286                                               ext_dup(extensions))))
 287                 goto err;
 288         return rsp;
 289 err:
 290         if (rsp) OCSP_BASICRESP_free(rsp);
 291         return NULL;
 292         }
 293
 294 int OCSP_basic_response_add(OCSP_BASICRESP           *rsp,
 295                             OCSP_CERTID              *cid,
 296                             OCSP_CERTSTATUS          *cst,
 297                             char                     *this,
 298                             char                     *next,
 299                             STACK_OF(X509_EXTENSION) *extensions)
 300         {
 301         OCSP_SINGLERESP *single = NULL;
 302
 303         if (!(single = OCSP_SINGLERESP_new())) goto err;
 304         if (single->certId) OCSP_CERTID_free(single->certId);
 305         if (!(single->certId = OCSP_CERTID_dup(cid))) goto err;
 306         if (single->certStatus) OCSP_CERTSTATUS_free(single->certStatus);
 307         if (!(single->certStatus = OCSP_CERTSTATUS_dup(cst))) goto err;
 308         if (!ASN1_GENERALIZEDTIME_set_string(single->thisUpdate,this))goto err;
 309         if (next)
 310                 {
 311                 if (!(single->nextUpdate = ASN1_GENERALIZEDTIME_new()))
 312                         goto err;
 313                 if (!ASN1_GENERALIZEDTIME_set_string(single->nextUpdate,next))
 314                         goto err;
 315                 }
 316         if (extensions && (!(single->singleExtensions = ext_dup(extensions))))
 317                 goto err;
 318         if (!sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses,single)) goto err;
 319         return 1;
 320 err:
 321         if (single) OCSP_SINGLERESP_free(single);
 322         return 0;
 323         }
 324
 325 int OCSP_basic_response_sign(OCSP_BASICRESP *brsp,
 326                              EVP_PKEY       *key,
 327                              const EVP_MD   *dgst,
 328                              STACK_OF(X509) *certs)
 329         {
 330         int i;
 331
 332         /* Right now, I think that not doing double hashing is the right
 333            thing.       -- Richard Levitte */
 334         if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
 335         if (certs)
 336                 {
 337                 if (!(brsp->certs = sk_X509_dup(certs))) goto err;
 338                 for (i = 0; i < sk_X509_num(brsp->certs); i++)
 339                         {
 340                         sk_X509_set(brsp->certs, i,
 341                                X509_dup(sk_X509_value(certs, i)));
 342                         if (! sk_X509_value(brsp->certs, i))
 343                                 goto err;
 344                         }
 345                 }
 346         return 1;
 347 err:
 348         return 0;
 349         }
 350
 351 OCSP_RESPONSE *OCSP_response_new(int status,
 352                                  int nid,
 353                                  int (*i2d)(),
 354                                  char *data)
 355         {
 356         OCSP_RESPONSE *rsp = NULL;
 357
 358         if (!(rsp = OCSP_RESPONSE_new())) goto err;
 359         if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
 360         if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
 361         if (rsp->responseBytes->responseType) ASN1_OBJECT_free(rsp->responseBytes->responseType);
 362         if (!(rsp->responseBytes->responseType = OBJ_nid2obj(nid))) goto err;
 363         if (!ASN1_STRING_encode((ASN1_STRING*)rsp->responseBytes->response,
 364                                 i2d, data, NULL)) goto err;
 365         return rsp;
 366 err:
 367         if (rsp) OCSP_RESPONSE_free(rsp);
 368         return NULL;
 369         }
 370
 371 char* ocspResponseStatus2string(long s)
 372         {
 373         static struct { long t; char *m; } ts[6]= {
 374                 { OCSP_RESPONSE_STATUS_SUCCESSFULL, "successful" },
 375                 { OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, "malformedrequest" },
 376                 { OCSP_RESPONSE_STATUS_INTERNALERROR, "internalerror" },
 377                 { OCSP_RESPONSE_STATUS_TRYLATER, "trylater" },
 378                 { OCSP_RESPONSE_STATUS_SIGREQUIRED, "sigrequired" },
 379                 { OCSP_RESPONSE_STATUS_UNAUTHORIZED, "unauthorized" } }, *p;
 380         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 381                 if (p->t == s)
 382                          return p->m;
 383         return "(UNKNOWN)";
 384         }
 385
 386 char* ocspCertStatus2string(long s)
 387         {
 388         static struct { long t; char *m; } ts[3]= {
 389                 { V_OCSP_CERTSTATUS_GOOD, "good" },
 390                 { V_OCSP_CERTSTATUS_REVOKED, "revoked" },
 391                 { V_OCSP_CERTSTATUS_UNKNOWN, "unknown" } }, *p;
 392         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 393                 if (p->t == s)
 394                          return p->m;
 395         return "(UNKNOWN)";
 396         }
 397
 398 char * cRLReason2string(long s)
 399         {
 400         static struct { long t; char *m; } ts[8]= {
 401           { OCSP_REVOKED_STATUS_UNSPECIFIED, "unspecified" },
 402           { OCSP_REVOKED_STATUS_KEYCOMPROMISE, "keyCompromise" },
 403           { OCSP_REVOKED_STATUS_CACOMPROMISE, "cACompromise" },
 404           { OCSP_REVOKED_STATUS_AFFILIATIONCHANGED, "affiliationChanged" },
 405           { OCSP_REVOKED_STATUS_SUPERSEDED, "superseded" },
 406           { OCSP_REVOKED_STATUS_CESSATIONOFOPERATION, "cessationOfOperation" },
 407           { OCSP_REVOKED_STATUS_CERTIFICATEHOLD, "certificateHold" },
 408           { OCSP_REVOKED_STATUS_REMOVEFROMCRL, "removeFromCRL" } }, *p;
 409         for (p=ts; p < &ts[sizeof ts/sizeof ts[0]]; p++)
 410                 if (p->t == s)
 411                          return p->m;
 412         return "(UNKNOWN)";
 413         }
 414
 415 static int i2a_GENERAL_NAME(bp,n)
 416 BIO *bp;
 417 GENERAL_NAME *n;
 418         {
 419         int j;
 420         char *p;
 421
 422         if (n == NULL) return(0);
 423
 424         switch (n->type)
 425                 {
 426
 427         case GEN_DIRNAME:
 428                 X509_NAME_print(bp,n->d.dirn,16);
 429                 break;
 430
 431         case GEN_EMAIL:
 432         case GEN_DNS:
 433         case GEN_URI:
 434         case GEN_IPADD:
 435                 p=(char *)n->d.ip->data;
 436                 for (j=n->d.ip->length;j>0;j--)
 437                         {
 438                         if ((*p >= ' ') && (*p <= '~'))
 439                                 BIO_printf(bp,"%c",*p);
 440                         else if (*p & 0x80)
 441                                 BIO_printf(bp,"\\0x%02X",*p);
 442                         else if ((unsigned char)*p == 0xf7)
 443                                 BIO_printf(bp,"^?");
 444                         else    BIO_printf(bp,"^%c",*p+'@');
 445                         p++;
 446                         }
 447                 break;
 448
 449         case GEN_RID:
 450                 i2a_ASN1_OBJECT(bp, n->d.rid);
 451                 break;
 452
 453         /* XXX these are legit, need to support at some time... */
 454         case GEN_OTHERNAME:
 455         case GEN_X400:
 456         case GEN_EDIPARTY:
 457         default:
 458                 return 0;
 459                 }
 460
 461         return 1;
 462         }
 463
 464
 465 int OCSP_REQUEST_print(bp, o)
 466 BIO *bp;
 467 OCSP_REQUEST* o;
 468         {
 469         int i,j,n;
 470         long l;
 471         char *s;
 472         OCSP_CERTID* cid = NULL;
 473         OCSP_ONEREQ *one = NULL;
 474         OCSP_REQINFO *inf = o->tbsRequest;
 475         OCSP_SIGNATURE *sig = o->optionalSignature;
 476
 477         if (BIO_write(bp,"OCSP Request Data:\n",19) <= 0) goto err;
 478         l=ASN1_INTEGER_get(inf->version);
 479         if (BIO_printf(bp,"%4sVersion: %lu (0x%lx)","",l+1,l) <= 0) goto err;
 480         if (inf->requestorName != NULL)
 481                 {
 482                 if (BIO_write(bp,"\n    Requestor Name: ",21) <= 0)
 483                         goto err;
 484                 i2a_GENERAL_NAME(bp, inf->requestorName);
 485                 }
 486         if (BIO_write(bp,"\n    Requestor List:\n",21) <= 0) goto err;
 487         for (i = 0; i < sk_OCSP_ONEREQ_num(inf->requestList); i++)
 488                 {
 489                 if (! sk_OCSP_ONEREQ_value(inf->requestList, i)) continue;
 490                 one = sk_OCSP_ONEREQ_value(inf->requestList, i);
 491                 cid = one->reqCert;
 492                 j=OBJ_obj2nid(cid->hashAlgorithm->algorithm);
 493                 if (BIO_printf(bp,"%8sHash Algorithm: %s","",
 494                                (j == NID_undef)?"UNKNOWN":OBJ_nid2ln(j)) <= 0)
 495                         goto err;
 496                 if (BIO_write(bp,"\n        Issuer Name Hash: ",27) <= 0)
 497                         goto err;
 498                 i2a_ASN1_STRING(bp, cid->issuerNameHash, V_ASN1_OCTET_STRING);
 499                 if (BIO_write(bp,"\n        Issuer Key Hash: ",26) <= 0)
 500                         goto err;
 501                 i2a_ASN1_STRING(bp, cid->issuerKeyHash, V_ASN1_OCTET_STRING);
 502                 if (BIO_write(bp,"\n        Serial Number: ",24) <= 0)
 503                         goto err;
 504                 if (!i2a_ASN1_INTEGER(bp, cid->serialNumber))
 505                         goto err;
 506                 if (!BIO_write(bp,"\n",1)) goto err;
 507                 if (!OCSP_extensions_print(bp, one->singleRequestExtensions,
 508                                            "Request Single Extensions"))
 509                         goto err;
 510                 }
 511         if (!OCSP_extensions_print(bp, inf->requestExtensions,
 512                                    "Request Extensions"))
 513                 goto err;
 514         if (sig)
 515                 {
 516                 i=OBJ_obj2nid(sig->signatureAlgorithm->algorithm);
 517                 if (BIO_printf(bp,"OCSP Request Signature Algorithm: %s",
 518                                (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 519                         goto err;
 520                 n=sig->signature->length;
 521                 s=(char *)sig->signature->data;
 522                 for (i=0; i<n; i++)
 523                         {
 524                         if ((i%18) == 0)
 525                         if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 526                         if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 527                                 ((i+1) == n)?"":":") <= 0) goto err;
 528                         }
 529                 if (BIO_write(bp,"\n",1) != 1) goto err;
 530                 if (sig->certs)
 531                         {
 532                         for (i=0; i<sk_X509_num(sig->certs); i++)
 533                                 if (sk_X509_value(sig->certs,i) != NULL)
 534                                         X509_print(bp,
 535                                             sk_X509_value(sig->certs,i));
 536                         }
 537                 }
 538         return 1;
 539 err:
 540         return 0;
 541         }
 542
 543 int OCSP_RESPONSE_print(BIO *bp, OCSP_RESPONSE* o)
 544         {
 545         int i, j, n;
 546         long l;
 547         char *s;
 548         unsigned char *p;
 549         OCSP_CERTID *cid = NULL;
 550         OCSP_BASICRESP *br = NULL;
 551         OCSP_RESPDATA  *rd = NULL;
 552         OCSP_CERTSTATUS *cst = NULL;
 553         OCSP_REVOKEDINFO *rev = NULL;
 554         OCSP_SINGLERESP *single = NULL;
 555         OCSP_RESPBYTES *rb = o->responseBytes;
 556
 557         l=ASN1_ENUMERATED_get(o->responseStatus);
 558         if (BIO_printf(bp,"OCSP Response Status: %s (0x%x)\n",
 559                        ocspResponseStatus2string(l), l) <= 0) goto err;
 560         if (rb == NULL) return 1;
 561         i=OBJ_obj2nid(rb->responseType);
 562         if (BIO_printf(bp,"OCSP Response Bytes Response Type: %s",
 563                        (i == NID_undef)?"UNKNOWN":OBJ_nid2sn(i)) <= 0)
 564                 goto err;
 565         if (i != NID_id_pkix_OCSP_basic)
 566                 {
 567                 BIO_printf(bp," (unknown response type)\n");
 568                 return 1;
 569                 }
 570         p = ASN1_STRING_data(rb->response);
 571         i = ASN1_STRING_length(rb->response);
 572         if (!(d2i_OCSP_BASICRESP(&br, &p, i))) goto err;
 573         rd = br->tbsResponseData;
 574         l=ASN1_INTEGER_get(rd->version);
 575         if (BIO_printf(bp,"\nBasic Response Data Version: %lu (0x%lx)\n",
 576                        l+1,l) <= 0) goto err;
 577         if (BIO_printf(bp,"Basic Response Data Responder Id: ") <= 0) goto err;
 578         i2a_OCSP_RESPID(bp, rd->responderId);
 579         if (BIO_printf(bp,"\nBasic Response Data Produced At: ")<=0) goto err;
 580         if (!ASN1_GENERALIZEDTIME_print(bp, rd->producedAt)) goto err;
 581         if (BIO_printf(bp,"\nBasic Response Data Responses:\n") <= 0) goto err;
 582         for (i = 0; i < sk_OCSP_SINGLERESP_num(rd->responses); i++)
 583                 {
 584                 if (! sk_OCSP_SINGLERESP_value(rd->responses, i)) continue;
 585                 single = sk_OCSP_SINGLERESP_value(rd->responses, i);
 586                 cid = single->certId;
 587                 j=OBJ_obj2nid(cid->hashAlgorithm->algorithm);
 588                 if (BIO_printf(bp,"    Cert Id:") <= 0) goto err;
 589                 if (BIO_printf(bp,"\n%8sHash Algorithm: %s","",
 590                                (j == NID_undef)?"UNKNOWN":OBJ_nid2ln(j)) <= 0)
 591                         goto err;
 592                 if (BIO_write(bp,"\n        Issuer Name Hash: ",27) <= 0)
 593                         goto err;
 594                 i2a_ASN1_STRING(bp, cid->issuerNameHash, V_ASN1_OCTET_STRING);
 595                 if (BIO_write(bp,"\n        Issuer Key Hash: ",26) <= 0)
 596                         goto err;
 597                 i2a_ASN1_STRING(bp, cid->issuerKeyHash, V_ASN1_OCTET_STRING);
 598                 if (BIO_write(bp,"\n        Serial Number: ",24) <= 0)
 599                         goto err;
 600                 if (!i2a_ASN1_INTEGER(bp, cid->serialNumber))
 601                         goto err;
 602                 cst = single->certStatus;
 603                 if (BIO_printf(bp,"\n    Cert Status: %s (0x%x)",
 604                                ocspCertStatus2string(cst->tag), cst->tag) <= 0)
 605                         goto err;
 606                 if (cst->tag == V_OCSP_CERTSTATUS_REVOKED)
 607                         {
 608                         rev = cst->revoked;
 609                         if (BIO_printf(bp, "\n    Revocation Time: ") <= 0)
 610                                 goto err;
 611                         if (!ASN1_GENERALIZEDTIME_print(bp,
 612                                                         rev->revocationTime))
 613                                 goto err;
 614                         if (rev->revocationReason)
 615                                 {
 616                                 l=ASN1_ENUMERATED_get(rev->revocationReason);
 617                                 if (BIO_printf(bp,
 618                                          "\n    Revocation Reason: %s (0x%x)",
 619                                                cRLReason2string(l), l) <= 0)
 620                                         goto err;
 621                                 }
 622                         }
 623                 if (BIO_printf(bp,"\n    This Update: ") <= 0) goto err;
 624                 if (!ASN1_GENERALIZEDTIME_print(bp, single->thisUpdate))
 625                         goto err;
 626                 if (single->nextUpdate)
 627                         {
 628                         if (BIO_printf(bp,"\n    Next Update: ") <= 0)goto err;
 629                         if (!ASN1_GENERALIZEDTIME_print(bp,single->nextUpdate))
 630                                 goto err;
 631                         }
 632                 if (!BIO_write(bp,"\n",1)) goto err;
 633                 if (!OCSP_extensions_print(bp, single->singleExtensions,
 634                                            "Basic Response Single Extensions"))
 635                         goto err;
 636                 }
 637         if (!OCSP_extensions_print(bp, rd->responseExtensions,
 638                                    "Basic Response Extensions")) goto err;
 639         i=OBJ_obj2nid(br->signatureAlgorithm->algorithm);
 640         if (BIO_printf(bp,"Basic Response Signature Algorithm: %s",
 641                        (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 642                 goto err;
 643         n=br->signature->length;
 644         s=(char *)br->signature->data;
 645         for (i=0; i<n; i++)
 646                 {
 647                 if ((i%18) == 0)
 648                 if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 649                 if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 650                         ((i+1) == n)?"":":") <= 0) goto err;
 651                 }
 652         if (BIO_write(bp,"\n",1) != 1) goto err;
 653         if (br->certs)
 654                 {
 655                 for (i=0; i<sk_X509_num(br->certs); i++)
 656                         if (sk_X509_value(br->certs,i) != NULL) {
 657                                 X509_print(bp, sk_X509_value(br->certs,i));
 658                                 PEM_write_bio_X509(bp,sk_X509_value(br->certs,i));
 659                         }
 660                 }
 661         return 1;
 662 err:
 663         return 0;
 664         }
 665
 666 int OCSP_CRLID_print(BIO *bp, OCSP_CRLID *a, int ind)
 667         {
 668         if (a->crlUrl)
 669                 {
 670                 if (!BIO_printf(bp, "%*scrlUrl: ", ind, "")) goto err;
 671                 if (!ASN1_STRING_print(bp, (ASN1_STRING*)a->crlUrl)) goto err;
 672                 if (!BIO_write(bp, "\n", 1)) goto err;
 673                 }
 674         if (a->crlNum)
 675                 {
 676                 if (!BIO_printf(bp, "%*scrlNum: ", ind, "")) goto err;
 677                 if (!i2a_ASN1_INTEGER(bp, a->crlNum)) goto err;
 678                 if (!BIO_write(bp, "\n", 1)) goto err;
 679                 }
 680         if (a->crlTime)
 681                 {
 682                 if (!BIO_printf(bp, "%*scrlTime: ", ind, "")) goto err;
 683                 if (!ASN1_GENERALIZEDTIME_print(bp, a->crlTime)) goto err;
 684                 if (!BIO_write(bp, "\n", 1)) goto err;
 685                 }
 686         return 1;
 687 err:
 688         return 0;
 689         }
 690
 691 int OCSP_SERVICELOC_print(BIO *bp, OCSP_SERVICELOC* a, int ind)
 692         {
 693         int i, j;
 694         ACCESS_DESCRIPTION *ad;
 695
 696         if (BIO_printf(bp, "%*sissuer: ", ind, "") <= 0) goto err;
 697         if (X509_NAME_print(bp, a->issuer, 16) <= 0) goto err;
 698         if (BIO_printf(bp, "\n", 1) <= 0) goto err;
 699
 700                 /* Service locator is optional */
 701                 if (a->locator != NULL) {
 702                         if (BIO_printf(bp, "%*slocator:\n", ind, "") <= 0) goto err;
 703                         for (i = 0; i < sk_ACCESS_DESCRIPTION_num(a->locator); i++)
 704                 {
 705                                 ad = sk_ACCESS_DESCRIPTION_value(a->locator,i);
 706                                 if (BIO_printf(bp, "%*smethod: ", (2*ind), "") <= 0)
 707                                         goto err;
 708                                 j=OBJ_obj2nid(ad->method);
 709                                 if (BIO_printf(bp,"%s", (j == NID_undef)?"UNKNOWN":
 710                                                            OBJ_nid2ln(j)) <= 0)
 711                                         goto err;
 712                                 if (BIO_printf(bp, "\n%*sname: ", (2*ind), "") <= 0)
 713                                         goto err;
 714                                 if (i2a_GENERAL_NAME(bp, ad->location) <= 0) goto err;
 715                                 if (BIO_write(bp, "\n", 1) <= 0) goto err;
 716                         }
 717                 }
 718         return 1;
 719 err:
 720         return 0;
 721         }
 722
 723 /* XXX assumes certs in signature are sorted root to leaf XXX */
 724 int OCSP_request_verify(OCSP_REQUEST *req, EVP_PKEY *pkey)
 725         {
 726         STACK_OF(X509) *sk;
 727
 728         if (!req->optionalSignature) return 0;
 729         if (pkey == NULL)
 730                 {
 731                 if (!(sk = req->optionalSignature->certs)) return 0;
 732                 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
 733                         {
 734                         OCSPerr(OCSP_F_REQUEST_VERIFY,OCSP_R_NO_PUBLIC_KEY);
 735                         return 0;
 736                         }
 737                 }
 738         return OCSP_REQUEST_verify(req, pkey);
 739         }
 740
 741 int OCSP_response_verify(OCSP_RESPONSE *rsp, EVP_PKEY *pkey)
 742         {
 743         int i, r;
 744         unsigned char *p;
 745         OCSP_RESPBYTES *rb;
 746         OCSP_BASICRESP *br = NULL;
 747
 748         if ((rb = rsp->responseBytes) == NULL)
 749                 {
 750                 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_NO_RESPONSE_DATA);
 751                 return 0;
 752                 }
 753         if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
 754                 {
 755                 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_BAD_TAG);
 756                 return 0;
 757                 }
 758         p = ASN1_STRING_data(rb->response);
 759         i = ASN1_STRING_length(rb->response);
 760         if (!(d2i_OCSP_BASICRESP(&br, &p, i))) return 0;
 761         r = OCSP_basic_response_verify(br, pkey);
 762         OCSP_BASICRESP_free(br);
 763         return r;
 764         }
 765
 766 int OCSP_basic_response_verify(OCSP_BASICRESP *rsp, EVP_PKEY *pkey)
 767         {
 768         STACK_OF(X509) *sk;
 769         int ret;
 770
 771         if (!rsp->signature)
 772                 {
 773                 OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_SIGNATURE);
 774                 return 0;
 775                 }
 776         if (pkey == NULL)
 777                 {
 778                 if (!(sk = rsp->certs))
 779                         {
 780                         OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_CERTIFICATE);
 781                         return 0;
 782                         }
 783                 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
 784                         {
 785                         OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_PUBLIC_KEY);
 786                         return 0;
 787                         }
 788                 }
 789         ret = OCSP_BASICRESP_verify(rsp, pkey, 0);
 790         return ret;
 791         }