demos/asn1/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000 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 #include <openssl/asn1.h>
  59 #include <openssl/asn1t.h>
  60 #include <openssl/x509v3.h>
  61
  62
  63
  64
  65 /* Example of new ASN1 code, OCSP request
  66
  67         OCSPRequest     ::=     SEQUENCE {
  68             tbsRequest                  TBSRequest,
  69             optionalSignature   [0]     EXPLICIT Signature OPTIONAL }
  70
  71         TBSRequest      ::=     SEQUENCE {
  72             version             [0] EXPLICIT Version DEFAULT v1,
  73             requestorName       [1] EXPLICIT GeneralName OPTIONAL,
  74             requestList             SEQUENCE OF Request,
  75             requestExtensions   [2] EXPLICIT Extensions OPTIONAL }
  76
  77         Signature       ::=     SEQUENCE {
  78             signatureAlgorithm   AlgorithmIdentifier,
  79             signature            BIT STRING,
  80             certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
  81
  82         Version  ::=  INTEGER  {  v1(0) }
  83
  84         Request ::=     SEQUENCE {
  85             reqCert                    CertID,
  86             singleRequestExtensions    [0] EXPLICIT Extensions OPTIONAL }
  87
  88         CertID ::= SEQUENCE {
  89             hashAlgorithm            AlgorithmIdentifier,
  90             issuerNameHash     OCTET STRING, -- Hash of Issuer's DN
  91             issuerKeyHash      OCTET STRING, -- Hash of Issuers public key
  92             serialNumber       CertificateSerialNumber }
  93
  94         OCSPResponse ::= SEQUENCE {
  95            responseStatus         OCSPResponseStatus,
  96            responseBytes          [0] EXPLICIT ResponseBytes OPTIONAL }
  97
  98         OCSPResponseStatus ::= ENUMERATED {
  99             successful            (0),      --Response has valid confirmations
 100             malformedRequest      (1),      --Illegal confirmation request
 101             internalError         (2),      --Internal error in issuer
 102             tryLater              (3),      --Try again later
 103                                             --(4) is not used
 104             sigRequired           (5),      --Must sign the request
 105             unauthorized          (6)       --Request unauthorized
 106         }
 107
 108         ResponseBytes ::=       SEQUENCE {
 109             responseType   OBJECT IDENTIFIER,
 110             response       OCTET STRING }
 111
 112         BasicOCSPResponse       ::= SEQUENCE {
 113            tbsResponseData      ResponseData,
 114            signatureAlgorithm   AlgorithmIdentifier,
 115            signature            BIT STRING,
 116            certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
 117
 118         ResponseData ::= SEQUENCE {
 119            version              [0] EXPLICIT Version DEFAULT v1,
 120            responderID              ResponderID,
 121            producedAt               GeneralizedTime,
 122            responses                SEQUENCE OF SingleResponse,
 123            responseExtensions   [1] EXPLICIT Extensions OPTIONAL }
 124
 125         ResponderID ::= CHOICE {
 126            byName   [1] Name,    --EXPLICIT
 127            byKey    [2] KeyHash }
 128
 129         KeyHash ::= OCTET STRING --SHA-1 hash of responder's public key
 130                                  --(excluding the tag and length fields)
 131
 132         SingleResponse ::= SEQUENCE {
 133            certID                       CertID,
 134            certStatus                   CertStatus,
 135            thisUpdate                   GeneralizedTime,
 136            nextUpdate           [0]     EXPLICIT GeneralizedTime OPTIONAL,
 137            singleExtensions     [1]     EXPLICIT Extensions OPTIONAL }
 138
 139         CertStatus ::= CHOICE {
 140             good                [0]     IMPLICIT NULL,
 141             revoked             [1]     IMPLICIT RevokedInfo,
 142             unknown             [2]     IMPLICIT UnknownInfo }
 143
 144         RevokedInfo ::= SEQUENCE {
 145             revocationTime              GeneralizedTime,
 146             revocationReason    [0]     EXPLICIT CRLReason OPTIONAL }
 147
 148         UnknownInfo ::= NULL -- this can be replaced with an enumeration
 149
 150         ArchiveCutoff ::= GeneralizedTime
 151
 152         AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER
 153
 154         ServiceLocator ::= SEQUENCE {
 155             issuer    Name,
 156             locator   AuthorityInfoAccessSyntax }
 157
 158         -- Object Identifiers
 159
 160         id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 }
 161         id-pkix-ocsp                 OBJECT IDENTIFIER ::= { id-ad-ocsp }
 162         id-pkix-ocsp-basic           OBJECT IDENTIFIER ::= { id-pkix-ocsp 1 }
 163         id-pkix-ocsp-nonce           OBJECT IDENTIFIER ::= { id-pkix-ocsp 2 }
 164         id-pkix-ocsp-crl             OBJECT IDENTIFIER ::= { id-pkix-ocsp 3 }
 165         id-pkix-ocsp-response        OBJECT IDENTIFIER ::= { id-pkix-ocsp 4 }
 166         id-pkix-ocsp-nocheck         OBJECT IDENTIFIER ::= { id-pkix-ocsp 5 }
 167         id-pkix-ocsp-archive-cutoff  OBJECT IDENTIFIER ::= { id-pkix-ocsp 6 }
 168         id-pkix-ocsp-service-locator OBJECT IDENTIFIER ::= { id-pkix-ocsp 7 }
 169
 170 */
 171
 172 /* Request Structures */
 173
 174 DECLARE_STACK_OF(Request)
 175
 176 typedef struct {
 177         ASN1_INTEGER *version;
 178         GENERAL_NAME *requestorName;
 179         STACK_OF(Request) *requestList;
 180         STACK_OF(X509_EXTENSION) *requestExtensions;
 181 } TBSRequest;
 182
 183 typedef struct {
 184         X509_ALGOR *signatureAlgorithm;
 185         ASN1_BIT_STRING *signature;
 186         STACK_OF(X509) *certs;
 187 } Signature;
 188
 189 typedef struct {
 190         TBSRequest *tbsRequest;
 191         Signature *optionalSignature;
 192 } OCSPRequest;
 193
 194 typedef struct {
 195         X509_ALGOR *hashAlgorithm;
 196         ASN1_OCTET_STRING *issuerNameHash;
 197         ASN1_OCTET_STRING *issuerKeyHash;
 198         ASN1_INTEGER *certificateSerialNumber;
 199 } CertID;
 200
 201 typedef struct {
 202         CertID *reqCert;
 203         STACK_OF(X509_EXTENSION) *singleRequestExtensions;
 204 } Request;
 205
 206 /* Response structures */
 207
 208 typedef struct {
 209         ASN1_OBJECT *responseType;
 210         ASN1_OCTET_STRING *response;
 211 } ResponseBytes;
 212
 213 typedef struct {
 214         ASN1_ENUMERATED *responseStatus;
 215         ResponseBytes *responseBytes;
 216 } OCSPResponse;
 217
 218 typedef struct {
 219         int type;
 220         union {
 221            X509_NAME *byName;
 222            ASN1_OCTET_STRING *byKey;
 223         }d;
 224 } ResponderID;
 225
 226 typedef struct {
 227            ASN1_INTEGER *version;
 228            ResponderID *responderID;
 229            ASN1_GENERALIZEDTIME *producedAt;
 230            STACK_OF(SingleResponse) *responses;
 231            STACK_OF(X509_EXTENSION) *responseExtensions;
 232 } ResponseData;
 233
 234 typedef struct {
 235            ResponseData *tbsResponseData;
 236            X509_ALGOR *signatureAlgorithm;
 237            ASN1_BIT_STRING *signature;
 238            STACK_OF(X509) *certs;
 239 } BasicOCSPResponse;
 240
 241 typedef struct {
 242         ASN1_GENERALIZEDTIME *revocationTime;
 243         ASN1_ENUMERATED * revocationReason;
 244 } RevokedInfo;
 245
 246 typedef struct {
 247         int type;
 248         union {
 249             ASN1_NULL *good;
 250             RevokedInfo *revoked;
 251             ASN1_NULL *unknown;
 252         } d;
 253 } CertStatus;
 254
 255 typedef struct {
 256            CertID *certID;
 257            CertStatus *certStatus;
 258            ASN1_GENERALIZEDTIME *thisUpdate;
 259            ASN1_GENERALIZEDTIME *nextUpdate;
 260            STACK_OF(X509_EXTENSION) *singleExtensions;
 261 } SingleResponse;
 262
 263
 264 typedef struct {
 265     X509_NAME *issuer;
 266     STACK_OF(ACCESS_DESCRIPTION) *locator;
 267 } ServiceLocator;
 268
 269
 270 /* Now the ASN1 templates */
 271
 272 IMPLEMENT_COMPAT_ASN1(X509);
 273 IMPLEMENT_COMPAT_ASN1(X509_ALGOR);
 274 //IMPLEMENT_COMPAT_ASN1(X509_EXTENSION);
 275 IMPLEMENT_COMPAT_ASN1(GENERAL_NAME);
 276 IMPLEMENT_COMPAT_ASN1(X509_NAME);
 277
 278 ASN1_SEQUENCE(X509_EXTENSION) = {
 279         ASN1_SIMPLE(X509_EXTENSION, object, ASN1_OBJECT),
 280         ASN1_OPT(X509_EXTENSION, critical, ASN1_BOOLEAN),
 281         ASN1_SIMPLE(X509_EXTENSION, value, ASN1_OCTET_STRING)
 282 } ASN1_SEQUENCE_END(X509_EXTENSION);
 283
 284
 285 ASN1_SEQUENCE(Signature) = {
 286         ASN1_SIMPLE(Signature, signatureAlgorithm, X509_ALGOR),
 287         ASN1_SIMPLE(Signature, signature, ASN1_BIT_STRING),
 288         ASN1_SEQUENCE_OF(Signature, certs, X509)
 289 } ASN1_SEQUENCE_END(Signature);
 290
 291 ASN1_SEQUENCE(CertID) = {
 292         ASN1_SIMPLE(CertID, hashAlgorithm, X509_ALGOR),
 293         ASN1_SIMPLE(CertID, issuerNameHash, ASN1_OCTET_STRING),
 294         ASN1_SIMPLE(CertID, issuerKeyHash, ASN1_OCTET_STRING),
 295         ASN1_SIMPLE(CertID, certificateSerialNumber, ASN1_INTEGER)
 296 } ASN1_SEQUENCE_END(CertID);
 297
 298 ASN1_SEQUENCE(Request) = {
 299         ASN1_SIMPLE(Request, reqCert, CertID),
 300         ASN1_EXP_SEQUENCE_OF_OPT(Request, singleRequestExtensions, X509_EXTENSION, 0)
 301 } ASN1_SEQUENCE_END(Request);
 302
 303 ASN1_SEQUENCE(TBSRequest) = {
 304         ASN1_EXP_OPT(TBSRequest, version, ASN1_INTEGER, 0),
 305         ASN1_EXP_OPT(TBSRequest, requestorName, GENERAL_NAME, 1),
 306         ASN1_SEQUENCE_OF(TBSRequest, requestList, Request),
 307         ASN1_EXP_SEQUENCE_OF_OPT(TBSRequest, requestExtensions, X509_EXTENSION, 2)
 308 } ASN1_SEQUENCE_END(TBSRequest);
 309
 310 ASN1_SEQUENCE(OCSPRequest) = {
 311         ASN1_SIMPLE(OCSPRequest, tbsRequest, TBSRequest),
 312         ASN1_EXP_OPT(OCSPRequest, optionalSignature, Signature, 0)
 313 } ASN1_SEQUENCE_END(OCSPRequest);
 314
 315
 316 /* Response templates */
 317
 318 ASN1_SEQUENCE(ResponseBytes) = {
 319             ASN1_SIMPLE(ResponseBytes, responseType, ASN1_OBJECT),
 320             ASN1_SIMPLE(ResponseBytes, response, ASN1_OCTET_STRING)
 321 } ASN1_SEQUENCE_END(ResponseBytes);
 322
 323 ASN1_SEQUENCE(OCSPResponse) = {
 324         ASN1_SIMPLE(OCSPResponse, responseStatus, ASN1_ENUMERATED),
 325         ASN1_EXP_OPT(OCSPResponse, responseBytes, ResponseBytes, 0)
 326 } ASN1_SEQUENCE_END(OCSPResponse);
 327
 328 ASN1_CHOICE(ResponderID) = {
 329            ASN1_EXP(ResponderID, d.byName, X509_NAME, 1),
 330            ASN1_IMP(ResponderID, d.byKey, ASN1_OCTET_STRING, 2)
 331 } ASN1_CHOICE_END(ResponderID);
 332
 333 ASN1_SEQUENCE(RevokedInfo) = {
 334         ASN1_SIMPLE(RevokedInfo, revocationTime, ASN1_GENERALIZEDTIME),
 335         ASN1_EXP_OPT(RevokedInfo, revocationReason, ASN1_ENUMERATED, 0)
 336 } ASN1_SEQUENCE_END(RevokedInfo);
 337
 338 ASN1_CHOICE(CertStatus) = {
 339         ASN1_IMP(CertStatus, d.good, ASN1_NULL, 0),
 340         ASN1_IMP(CertStatus, d.revoked, RevokedInfo, 1),
 341         ASN1_IMP(CertStatus, d.unknown, ASN1_NULL, 2)
 342 } ASN1_CHOICE_END(CertStatus);
 343
 344 ASN1_SEQUENCE(SingleResponse) = {
 345            ASN1_SIMPLE(SingleResponse, certID, CertID),
 346            ASN1_SIMPLE(SingleResponse, certStatus, CertStatus),
 347            ASN1_SIMPLE(SingleResponse, thisUpdate, ASN1_GENERALIZEDTIME),
 348            ASN1_EXP_OPT(SingleResponse, nextUpdate, ASN1_GENERALIZEDTIME, 0),
 349            ASN1_EXP_SEQUENCE_OF_OPT(SingleResponse, singleExtensions, X509_EXTENSION, 1)
 350 } ASN1_SEQUENCE_END(SingleResponse);
 351
 352 ASN1_SEQUENCE(ResponseData) = {
 353            ASN1_EXP_OPT(ResponseData, version, ASN1_INTEGER, 0),
 354            ASN1_SIMPLE(ResponseData, responderID, ResponderID),
 355            ASN1_SIMPLE(ResponseData, producedAt, ASN1_GENERALIZEDTIME),
 356            ASN1_SEQUENCE_OF(ResponseData, responses, SingleResponse),
 357            ASN1_EXP_SEQUENCE_OF_OPT(ResponseData, responseExtensions, X509_EXTENSION, 1)
 358 } ASN1_SEQUENCE_END(ResponseData);
 359
 360 ASN1_SEQUENCE(BasicOCSPResponse) = {
 361            ASN1_SIMPLE(BasicOCSPResponse, tbsResponseData, ResponseData),
 362            ASN1_SIMPLE(BasicOCSPResponse, signatureAlgorithm, X509_ALGOR),
 363            ASN1_SIMPLE(BasicOCSPResponse, signature, ASN1_BIT_STRING),
 364            ASN1_EXP_SEQUENCE_OF_OPT(BasicOCSPResponse, certs, X509, 0)
 365 } ASN1_SEQUENCE_END(BasicOCSPResponse);
 366