1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ocsp_vfy.c */ 2e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * project 2000. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 2000-2004 The OpenSSL Project. All rights reserved. 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/ocsp.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/err.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <string.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_find_signer(X509 **psigner, OCSP_BASICRESP *bs, STACK_OF(X509) *certs, 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE *st, unsigned long flags); 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic X509 *ocsp_find_signer_sk(STACK_OF(X509) *certs, OCSP_RESPID *id); 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_issuer(OCSP_BASICRESP *bs, STACK_OF(X509) *chain, unsigned long flags); 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_ids(STACK_OF(OCSP_SINGLERESP) *sresp, OCSP_CERTID **ret); 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_match_issuerid(X509 *cert, OCSP_CERTID *cid, STACK_OF(OCSP_SINGLERESP) *sresp); 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_delegated(X509 *x, int flags); 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_req_find_signer(X509 **psigner, OCSP_REQUEST *req, X509_NAME *nm, STACK_OF(X509) *certs, 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE *st, unsigned long flags); 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Verify a basic response message */ 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint OCSP_basic_verify(OCSP_BASICRESP *bs, STACK_OF(X509) *certs, 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE *st, unsigned long flags) 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *signer, *x; 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project STACK_OF(X509) *chain = NULL; 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX ctx; 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i, ret = 0; 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ocsp_find_signer(&signer, bs, certs, st, flags); 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!ret) 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_BASIC_VERIFY, OCSP_R_SIGNER_CERTIFICATE_NOT_FOUND); 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ret == 2) && (flags & OCSP_TRUSTOTHER)) 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project flags |= OCSP_NOVERIFY; 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(flags & OCSP_NOSIGS)) 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_PKEY *skey; 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skey = X509_get_pubkey(signer); 9404ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom if (skey) 9504ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom { 9604ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom ret = OCSP_BASICRESP_verify(bs, skey, 0); 9704ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom EVP_PKEY_free(skey); 9804ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom } 9904ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom if(!skey || ret <= 0) 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_BASIC_VERIFY, OCSP_R_SIGNATURE_FAILURE); 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(flags & OCSP_NOVERIFY)) 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int init_res; 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & OCSP_NOCHAIN) 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project init_res = X509_STORE_CTX_init(&ctx, st, signer, NULL); 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project init_res = X509_STORE_CTX_init(&ctx, st, signer, bs->certs); 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!init_res) 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 11404ef91b390dfcc6125913e2f2af502d23d7a5112Brian Carlstrom ret = -1; 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_BASIC_VERIFY,ERR_R_X509_LIB); 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX_set_purpose(&ctx, X509_PURPOSE_OCSP_HELPER); 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = X509_verify_cert(&ctx); 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project chain = X509_STORE_CTX_get1_chain(&ctx); 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX_cleanup(&ctx); 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i = X509_STORE_CTX_get_error(&ctx); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_BASIC_VERIFY,OCSP_R_CERTIFICATE_VERIFY_ERROR); 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_add_error_data(2, "Verify error:", 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_verify_cert_error_string(i)); 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & OCSP_NOCHECKS) 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = 1; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* At this point we have a valid certificate chain 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * need to verify it against the OCSP issuer criteria. 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ocsp_check_issuer(bs, chain, flags); 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If fatal error or valid match then finish */ 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret != 0) goto end; 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Easy case: explicitly trusted. Get root CA and 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * check for explicit trust 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & OCSP_NOEXPLICIT) goto end; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x = sk_X509_value(chain, sk_X509_num(chain) - 1); 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(X509_check_trust(x, NID_OCSP_sign, 0) != X509_TRUST_TRUSTED) 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_BASIC_VERIFY,OCSP_R_ROOT_CA_NOT_TRUSTED); 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto end; 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = 1; 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project end: 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(chain) sk_X509_pop_free(chain, X509_free); 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ret; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_find_signer(X509 **psigner, OCSP_BASICRESP *bs, STACK_OF(X509) *certs, 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE *st, unsigned long flags) 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *signer; 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSP_RESPID *rid = bs->tbsResponseData->responderId; 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((signer = ocsp_find_signer_sk(certs, rid))) 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *psigner = signer; 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 2; 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(flags & OCSP_NOINTERN) && 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (signer = ocsp_find_signer_sk(bs->certs, rid))) 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *psigner = signer; 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Maybe lookup from store if by subject name */ 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *psigner = NULL; 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic X509 *ocsp_find_signer_sk(STACK_OF(X509) *certs, OCSP_RESPID *id) 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char tmphash[SHA_DIGEST_LENGTH], *keyhash; 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *x; 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Easy if lookup by name */ 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (id->type == V_OCSP_RESPID_NAME) 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return X509_find_by_subject(certs, id->value.byName); 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Lookup by key hash */ 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If key hash isn't SHA1 length then forget it */ 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (id->value.byKey->length != SHA_DIGEST_LENGTH) return NULL; 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project keyhash = id->value.byKey->data; 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Calculate hash of each key and compare */ 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i = 0; i < sk_X509_num(certs); i++) 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x = sk_X509_value(certs, i); 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_pubkey_digest(x, EVP_sha1(), tmphash, NULL); 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!memcmp(keyhash, tmphash, SHA_DIGEST_LENGTH)) 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return x; 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_issuer(OCSP_BASICRESP *bs, STACK_OF(X509) *chain, unsigned long flags) 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project STACK_OF(OCSP_SINGLERESP) *sresp; 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *signer, *sca; 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSP_CERTID *caid = NULL; 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sresp = bs->tbsResponseData->responses; 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sk_X509_num(chain) <= 0) 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_CHECK_ISSUER, OCSP_R_NO_CERTIFICATES_IN_CHAIN); 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* See if the issuer IDs match. */ 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i = ocsp_check_ids(sresp, &caid); 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If ID mismatch or other error then return */ 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) return i; 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project signer = sk_X509_value(chain, 0); 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check to see if OCSP responder CA matches request CA */ 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (sk_X509_num(chain) > 1) 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sca = sk_X509_value(chain, 1); 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i = ocsp_match_issuerid(sca, caid, sresp); 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i < 0) return i; 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i) 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We have a match, if extensions OK then success */ 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ocsp_check_delegated(signer, flags)) return 1; 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Otherwise check if OCSP request signed directly by request CA */ 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ocsp_match_issuerid(signer, caid, sresp); 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Check the issuer certificate IDs for equality. If there is a mismatch with the same 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * algorithm then there's no point trying to match any certificates against the issuer. 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If the issuer IDs all match then we just need to check equality against one of them. 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_ids(STACK_OF(OCSP_SINGLERESP) *sresp, OCSP_CERTID **ret) 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSP_CERTID *tmpid, *cid; 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i, idcount; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project idcount = sk_OCSP_SINGLERESP_num(sresp); 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (idcount <= 0) 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_CHECK_IDS, OCSP_R_RESPONSE_CONTAINS_NO_REVOCATION_DATA); 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cid = sk_OCSP_SINGLERESP_value(sresp, 0)->certId; 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *ret = NULL; 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i = 1; i < idcount; i++) 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tmpid = sk_OCSP_SINGLERESP_value(sresp, i)->certId; 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check to see if IDs match */ 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (OCSP_id_issuer_cmp(cid, tmpid)) 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If algoritm mismatch let caller deal with it */ 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (OBJ_cmp(tmpid->hashAlgorithm->algorithm, 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cid->hashAlgorithm->algorithm)) 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 2; 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Else mismatch */ 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* All IDs match: only need to check one ID */ 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *ret = cid; 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_match_issuerid(X509 *cert, OCSP_CERTID *cid, 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project STACK_OF(OCSP_SINGLERESP) *sresp) 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If only one ID to match then do it */ 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(cid) 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const EVP_MD *dgst; 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_NAME *iname; 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int mdlen; 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char md[EVP_MAX_MD_SIZE]; 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(dgst = EVP_get_digestbyobj(cid->hashAlgorithm->algorithm))) 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_MATCH_ISSUERID, OCSP_R_UNKNOWN_MESSAGE_DIGEST); 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mdlen = EVP_MD_size(dgst); 315221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (mdlen < 0) 316221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom return -1; 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((cid->issuerNameHash->length != mdlen) || 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (cid->issuerKeyHash->length != mdlen)) 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project iname = X509_get_subject_name(cert); 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!X509_NAME_digest(iname, dgst, md, NULL)) 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (memcmp(md, cid->issuerNameHash->data, mdlen)) 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 325221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom X509_pubkey_digest(cert, dgst, md, NULL); 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (memcmp(md, cid->issuerKeyHash->data, mdlen)) 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We have to match the whole lot */ 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i, ret; 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSP_CERTID *tmpid; 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i = 0; i < sk_OCSP_SINGLERESP_num(sresp); i++) 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tmpid = sk_OCSP_SINGLERESP_value(sresp, i)->certId; 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ocsp_match_issuerid(cert, tmpid, NULL); 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) return ret; 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_check_delegated(X509 *x, int flags) 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_check_purpose(x, -1, 0); 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((x->ex_flags & EXFLAG_XKUSAGE) && 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (x->ex_xkusage & XKU_OCSP_SIGN)) 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_CHECK_DELEGATED, OCSP_R_MISSING_OCSPSIGNING_USAGE); 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Verify an OCSP request. This is fortunately much easier than OCSP 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * response verify. Just find the signers certificate and verify it 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * against a given trust value. 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint OCSP_request_verify(OCSP_REQUEST *req, STACK_OF(X509) *certs, X509_STORE *store, unsigned long flags) 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *signer; 366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_NAME *nm; 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project GENERAL_NAME *gen; 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret; 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX ctx; 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!req->optionalSignature) 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_REQUEST_NOT_SIGNED); 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project gen = req->tbsRequest->requestorName; 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!gen || gen->type != GEN_DIRNAME) 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_UNSUPPORTED_REQUESTORNAME_TYPE); 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nm = gen->d.directoryName; 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = ocsp_req_find_signer(&signer, req, nm, certs, store, flags); 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_SIGNER_CERTIFICATE_NOT_FOUND); 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ret == 2) && (flags & OCSP_TRUSTOTHER)) 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project flags |= OCSP_NOVERIFY; 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(flags & OCSP_NOSIGS)) 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_PKEY *skey; 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project skey = X509_get_pubkey(signer); 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = OCSP_REQUEST_verify(req, skey); 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_PKEY_free(skey); 396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ret <= 0) 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_SIGNATURE_FAILURE); 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(flags & OCSP_NOVERIFY)) 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int init_res; 405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(flags & OCSP_NOCHAIN) 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project init_res = X509_STORE_CTX_init(&ctx, store, signer, NULL); 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project init_res = X509_STORE_CTX_init(&ctx, store, signer, 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project req->optionalSignature->certs); 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!init_res) 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,ERR_R_X509_LIB); 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX_set_purpose(&ctx, X509_PURPOSE_OCSP_HELPER); 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX_set_trust(&ctx, X509_TRUST_OCSP_REQUEST); 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = X509_verify_cert(&ctx); 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE_CTX_cleanup(&ctx); 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = X509_STORE_CTX_get_error(&ctx); 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,OCSP_R_CERTIFICATE_VERIFY_ERROR); 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_add_error_data(2, "Verify error:", 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_verify_cert_error_string(ret)); 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int ocsp_req_find_signer(X509 **psigner, OCSP_REQUEST *req, X509_NAME *nm, STACK_OF(X509) *certs, 433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_STORE *st, unsigned long flags) 434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509 *signer; 436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(flags & OCSP_NOINTERN)) 437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project signer = X509_find_by_subject(req->optionalSignature->certs, nm); 439c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root if (signer) 440c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root { 441c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root *psigner = signer; 442c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root return 1; 443c64f6fe2be99cb3fa8e491b5bede9a217de87a4cKenny Root } 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project signer = X509_find_by_subject(certs, nm); 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (signer) 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *psigner = signer; 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 2; 451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 454