1109998Smarkm/* ocsp_srv.c */ 2280297Sjkim/* 3280297Sjkim * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4280297Sjkim * 2001. 5109998Smarkm */ 6109998Smarkm/* ==================================================================== 7109998Smarkm * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 8109998Smarkm * 9109998Smarkm * Redistribution and use in source and binary forms, with or without 10109998Smarkm * modification, are permitted provided that the following conditions 11109998Smarkm * are met: 12109998Smarkm * 13109998Smarkm * 1. Redistributions of source code must retain the above copyright 14280297Sjkim * notice, this list of conditions and the following disclaimer. 15109998Smarkm * 16109998Smarkm * 2. Redistributions in binary form must reproduce the above copyright 17109998Smarkm * notice, this list of conditions and the following disclaimer in 18109998Smarkm * the documentation and/or other materials provided with the 19109998Smarkm * distribution. 20109998Smarkm * 21109998Smarkm * 3. All advertising materials mentioning features or use of this 22109998Smarkm * software must display the following acknowledgment: 23109998Smarkm * "This product includes software developed by the OpenSSL Project 24109998Smarkm * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 25109998Smarkm * 26109998Smarkm * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27109998Smarkm * endorse or promote products derived from this software without 28109998Smarkm * prior written permission. For written permission, please contact 29109998Smarkm * openssl-core@openssl.org. 30109998Smarkm * 31109998Smarkm * 5. Products derived from this software may not be called "OpenSSL" 32109998Smarkm * nor may "OpenSSL" appear in their names without prior written 33109998Smarkm * permission of the OpenSSL Project. 34109998Smarkm * 35109998Smarkm * 6. Redistributions of any form whatsoever must retain the following 36109998Smarkm * acknowledgment: 37109998Smarkm * "This product includes software developed by the OpenSSL Project 38109998Smarkm * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 39109998Smarkm * 40109998Smarkm * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41109998Smarkm * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43109998Smarkm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44109998Smarkm * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45109998Smarkm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46109998Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47109998Smarkm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49109998Smarkm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50109998Smarkm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51109998Smarkm * OF THE POSSIBILITY OF SUCH DAMAGE. 52109998Smarkm * ==================================================================== 53109998Smarkm * 54109998Smarkm * This product includes cryptographic software written by Eric Young 55109998Smarkm * (eay@cryptsoft.com). This product includes software written by Tim 56109998Smarkm * Hudson (tjh@cryptsoft.com). 57109998Smarkm * 58109998Smarkm */ 59109998Smarkm 60109998Smarkm#include <stdio.h> 61109998Smarkm#include <cryptlib.h> 62109998Smarkm#include <openssl/objects.h> 63109998Smarkm#include <openssl/rand.h> 64109998Smarkm#include <openssl/x509.h> 65109998Smarkm#include <openssl/pem.h> 66109998Smarkm#include <openssl/x509v3.h> 67109998Smarkm#include <openssl/ocsp.h> 68109998Smarkm 69280297Sjkim/* 70280297Sjkim * Utility functions related to sending OCSP responses and extracting 71109998Smarkm * relevant information from the request. 72109998Smarkm */ 73109998Smarkm 74109998Smarkmint OCSP_request_onereq_count(OCSP_REQUEST *req) 75280297Sjkim{ 76280297Sjkim return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList); 77280297Sjkim} 78109998Smarkm 79109998SmarkmOCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i) 80280297Sjkim{ 81280297Sjkim return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i); 82280297Sjkim} 83109998Smarkm 84109998SmarkmOCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one) 85280297Sjkim{ 86280297Sjkim return one->reqCert; 87280297Sjkim} 88109998Smarkm 89109998Smarkmint OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd, 90280297Sjkim ASN1_OCTET_STRING **pikeyHash, 91280297Sjkim ASN1_INTEGER **pserial, OCSP_CERTID *cid) 92280297Sjkim{ 93280297Sjkim if (!cid) 94280297Sjkim return 0; 95280297Sjkim if (pmd) 96280297Sjkim *pmd = cid->hashAlgorithm->algorithm; 97280297Sjkim if (piNameHash) 98280297Sjkim *piNameHash = cid->issuerNameHash; 99280297Sjkim if (pikeyHash) 100280297Sjkim *pikeyHash = cid->issuerKeyHash; 101280297Sjkim if (pserial) 102280297Sjkim *pserial = cid->serialNumber; 103280297Sjkim return 1; 104280297Sjkim} 105109998Smarkm 106109998Smarkmint OCSP_request_is_signed(OCSP_REQUEST *req) 107280297Sjkim{ 108280297Sjkim if (req->optionalSignature) 109280297Sjkim return 1; 110280297Sjkim return 0; 111280297Sjkim} 112109998Smarkm 113109998Smarkm/* Create an OCSP response and encode an optional basic response */ 114109998SmarkmOCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs) 115280297Sjkim{ 116280297Sjkim OCSP_RESPONSE *rsp = NULL; 117109998Smarkm 118280297Sjkim if (!(rsp = OCSP_RESPONSE_new())) 119280297Sjkim goto err; 120280297Sjkim if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) 121280297Sjkim goto err; 122280297Sjkim if (!bs) 123280297Sjkim return rsp; 124280297Sjkim if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) 125280297Sjkim goto err; 126280297Sjkim rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic); 127280297Sjkim if (!ASN1_item_pack 128280297Sjkim (bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response)) 129280297Sjkim goto err; 130280297Sjkim return rsp; 131280297Sjkim err: 132280297Sjkim if (rsp) 133280297Sjkim OCSP_RESPONSE_free(rsp); 134280297Sjkim return NULL; 135280297Sjkim} 136109998Smarkm 137109998SmarkmOCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp, 138280297Sjkim OCSP_CERTID *cid, 139280297Sjkim int status, int reason, 140280297Sjkim ASN1_TIME *revtime, 141280297Sjkim ASN1_TIME *thisupd, 142280297Sjkim ASN1_TIME *nextupd) 143280297Sjkim{ 144280297Sjkim OCSP_SINGLERESP *single = NULL; 145280297Sjkim OCSP_CERTSTATUS *cs; 146280297Sjkim OCSP_REVOKEDINFO *ri; 147109998Smarkm 148280297Sjkim if (!rsp->tbsResponseData->responses && 149280297Sjkim !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null())) 150280297Sjkim goto err; 151109998Smarkm 152280297Sjkim if (!(single = OCSP_SINGLERESP_new())) 153280297Sjkim goto err; 154109998Smarkm 155280297Sjkim if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate)) 156280297Sjkim goto err; 157280297Sjkim if (nextupd && 158280297Sjkim !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate)) 159280297Sjkim goto err; 160109998Smarkm 161280297Sjkim OCSP_CERTID_free(single->certId); 162109998Smarkm 163280297Sjkim if (!(single->certId = OCSP_CERTID_dup(cid))) 164280297Sjkim goto err; 165109998Smarkm 166280297Sjkim cs = single->certStatus; 167280297Sjkim switch (cs->type = status) { 168280297Sjkim case V_OCSP_CERTSTATUS_REVOKED: 169280297Sjkim if (!revtime) { 170280297Sjkim OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS, OCSP_R_NO_REVOKED_TIME); 171280297Sjkim goto err; 172280297Sjkim } 173280297Sjkim if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) 174280297Sjkim goto err; 175280297Sjkim if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime)) 176280297Sjkim goto err; 177280297Sjkim if (reason != OCSP_REVOKED_STATUS_NOSTATUS) { 178280297Sjkim if (!(ri->revocationReason = ASN1_ENUMERATED_new())) 179280297Sjkim goto err; 180280297Sjkim if (!(ASN1_ENUMERATED_set(ri->revocationReason, reason))) 181280297Sjkim goto err; 182280297Sjkim } 183280297Sjkim break; 184109998Smarkm 185280297Sjkim case V_OCSP_CERTSTATUS_GOOD: 186280297Sjkim cs->value.good = ASN1_NULL_new(); 187280297Sjkim break; 188109998Smarkm 189280297Sjkim case V_OCSP_CERTSTATUS_UNKNOWN: 190280297Sjkim cs->value.unknown = ASN1_NULL_new(); 191280297Sjkim break; 192109998Smarkm 193280297Sjkim default: 194280297Sjkim goto err; 195109998Smarkm 196280297Sjkim } 197280297Sjkim if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single))) 198280297Sjkim goto err; 199280297Sjkim return single; 200280297Sjkim err: 201280297Sjkim OCSP_SINGLERESP_free(single); 202280297Sjkim return NULL; 203280297Sjkim} 204109998Smarkm 205109998Smarkm/* Add a certificate to an OCSP request */ 206109998Smarkm 207109998Smarkmint OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert) 208280297Sjkim{ 209280297Sjkim if (!resp->certs && !(resp->certs = sk_X509_new_null())) 210280297Sjkim return 0; 211109998Smarkm 212280297Sjkim if (!sk_X509_push(resp->certs, cert)) 213280297Sjkim return 0; 214280297Sjkim CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509); 215280297Sjkim return 1; 216280297Sjkim} 217109998Smarkm 218280297Sjkimint OCSP_basic_sign(OCSP_BASICRESP *brsp, 219280297Sjkim X509 *signer, EVP_PKEY *key, const EVP_MD *dgst, 220280297Sjkim STACK_OF(X509) *certs, unsigned long flags) 221280297Sjkim{ 222280297Sjkim int i; 223280297Sjkim OCSP_RESPID *rid; 224109998Smarkm 225280297Sjkim if (!X509_check_private_key(signer, key)) { 226280297Sjkim OCSPerr(OCSP_F_OCSP_BASIC_SIGN, 227280297Sjkim OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE); 228280297Sjkim goto err; 229280297Sjkim } 230109998Smarkm 231280297Sjkim if (!(flags & OCSP_NOCERTS)) { 232280297Sjkim if (!OCSP_basic_add1_cert(brsp, signer)) 233280297Sjkim goto err; 234280297Sjkim for (i = 0; i < sk_X509_num(certs); i++) { 235280297Sjkim X509 *tmpcert = sk_X509_value(certs, i); 236280297Sjkim if (!OCSP_basic_add1_cert(brsp, tmpcert)) 237280297Sjkim goto err; 238280297Sjkim } 239280297Sjkim } 240109998Smarkm 241280297Sjkim rid = brsp->tbsResponseData->responderId; 242280297Sjkim if (flags & OCSP_RESPID_KEY) { 243280297Sjkim unsigned char md[SHA_DIGEST_LENGTH]; 244280297Sjkim X509_pubkey_digest(signer, EVP_sha1(), md, NULL); 245280297Sjkim if (!(rid->value.byKey = ASN1_OCTET_STRING_new())) 246280297Sjkim goto err; 247280297Sjkim if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH))) 248280297Sjkim goto err; 249280297Sjkim rid->type = V_OCSP_RESPID_KEY; 250280297Sjkim } else { 251280297Sjkim if (!X509_NAME_set(&rid->value.byName, X509_get_subject_name(signer))) 252280297Sjkim goto err; 253280297Sjkim rid->type = V_OCSP_RESPID_NAME; 254280297Sjkim } 255109998Smarkm 256280297Sjkim if (!(flags & OCSP_NOTIME) && 257280297Sjkim !X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0)) 258280297Sjkim goto err; 259109998Smarkm 260280297Sjkim /* 261280297Sjkim * Right now, I think that not doing double hashing is the right thing. 262280297Sjkim * -- Richard Levitte 263280297Sjkim */ 264109998Smarkm 265280297Sjkim if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) 266280297Sjkim goto err; 267109998Smarkm 268280297Sjkim return 1; 269280297Sjkim err: 270280297Sjkim return 0; 271280297Sjkim} 272