1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* x_algor.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 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. 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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 <stddef.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/x509.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1t.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_SEQUENCE(X509_ALGOR) = { 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT), 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY) 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project} ASN1_SEQUENCE_END(X509_ALGOR) 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_ITEM_TEMPLATE(X509_ALGORS) = 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR) 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_ITEM_TEMPLATE_END(X509_ALGORS) 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR) 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS) 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR) 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_STACK_OF(X509_ALGOR) 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectIMPLEMENT_ASN1_SET_OF(X509_ALGOR) 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval) 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!alg) 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ptype != V_ASN1_UNDEF) 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (alg->parameter == NULL) 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project alg->parameter = ASN1_TYPE_new(); 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (alg->parameter == NULL) 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (alg) 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (alg->algorithm) 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_OBJECT_free(alg->algorithm); 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project alg->algorithm = aobj; 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ptype == 0) 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ptype == V_ASN1_UNDEF) 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (alg->parameter) 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_TYPE_free(alg->parameter); 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project alg->parameter = NULL; 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_TYPE_set(alg->parameter, ptype, pval); 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval, 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project X509_ALGOR *algor) 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (paobj) 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *paobj = algor->algorithm; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (pptype) 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (algor->parameter == NULL) 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *pptype = V_ASN1_UNDEF; 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return; 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *pptype = algor->parameter->type; 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ppval) 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *ppval = algor->parameter->value.ptr; 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 131392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */ 132392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 133392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstromvoid X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md) 134392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom { 135392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom int param_type; 136392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 137392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT) 138392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom param_type = V_ASN1_UNDEF; 139392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom else 140392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom param_type = V_ASN1_NULL; 141392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 142392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL); 143392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom 144392aa7cc7d2b122614c5393c3e357da07fd07af3Brian Carlstrom } 145