1109998Smarkm/* x_algor.c */ 2280297Sjkim/* 3280297Sjkim * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4280297Sjkim * 2000. 5109998Smarkm */ 6109998Smarkm/* ==================================================================== 7109998Smarkm * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 855714Skris * 955714Skris * Redistribution and use in source and binary forms, with or without 1055714Skris * modification, are permitted provided that the following conditions 1155714Skris * 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 * 1655714Skris * 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 * licensing@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 * 5855714Skris */ 5955714Skris 60109998Smarkm#include <stddef.h> 6155714Skris#include <openssl/x509.h> 62109998Smarkm#include <openssl/asn1.h> 63109998Smarkm#include <openssl/asn1t.h> 6455714Skris 65109998SmarkmASN1_SEQUENCE(X509_ALGOR) = { 66280297Sjkim ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT), 67280297Sjkim ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY) 68109998Smarkm} ASN1_SEQUENCE_END(X509_ALGOR) 6955714Skris 70280297SjkimASN1_ITEM_TEMPLATE(X509_ALGORS) = 71280297Sjkim ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR) 72194206SsimonASN1_ITEM_TEMPLATE_END(X509_ALGORS) 73194206Ssimon 74109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR) 75194206SsimonIMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS) 76109998SmarkmIMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR) 7755714Skris 7855714SkrisIMPLEMENT_STACK_OF(X509_ALGOR) 7955714SkrisIMPLEMENT_ASN1_SET_OF(X509_ALGOR) 80194206Ssimon 81194206Ssimonint X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval) 82280297Sjkim{ 83280297Sjkim if (!alg) 84280297Sjkim return 0; 85280297Sjkim if (ptype != V_ASN1_UNDEF) { 86280297Sjkim if (alg->parameter == NULL) 87280297Sjkim alg->parameter = ASN1_TYPE_new(); 88280297Sjkim if (alg->parameter == NULL) 89280297Sjkim return 0; 90280297Sjkim } 91280297Sjkim if (alg) { 92280297Sjkim if (alg->algorithm) 93280297Sjkim ASN1_OBJECT_free(alg->algorithm); 94280297Sjkim alg->algorithm = aobj; 95280297Sjkim } 96280297Sjkim if (ptype == 0) 97280297Sjkim return 1; 98280297Sjkim if (ptype == V_ASN1_UNDEF) { 99280297Sjkim if (alg->parameter) { 100280297Sjkim ASN1_TYPE_free(alg->parameter); 101280297Sjkim alg->parameter = NULL; 102280297Sjkim } 103280297Sjkim } else 104280297Sjkim ASN1_TYPE_set(alg->parameter, ptype, pval); 105280297Sjkim return 1; 106280297Sjkim} 107194206Ssimon 108194206Ssimonvoid X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval, 109280297Sjkim X509_ALGOR *algor) 110280297Sjkim{ 111280297Sjkim if (paobj) 112280297Sjkim *paobj = algor->algorithm; 113280297Sjkim if (pptype) { 114280297Sjkim if (algor->parameter == NULL) { 115280297Sjkim *pptype = V_ASN1_UNDEF; 116280297Sjkim return; 117280297Sjkim } else 118280297Sjkim *pptype = algor->parameter->type; 119280297Sjkim if (ppval) 120280297Sjkim *ppval = algor->parameter->value.ptr; 121280297Sjkim } 122280297Sjkim} 123194206Ssimon 124238405Sjkim/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */ 125238405Sjkim 126238405Sjkimvoid X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md) 127280297Sjkim{ 128280297Sjkim int param_type; 129238405Sjkim 130280297Sjkim if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT) 131280297Sjkim param_type = V_ASN1_UNDEF; 132280297Sjkim else 133280297Sjkim param_type = V_ASN1_NULL; 134238405Sjkim 135280297Sjkim X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL); 136238405Sjkim 137280297Sjkim} 138276861Sjkim 139276861Sjkimint X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b) 140280297Sjkim{ 141280297Sjkim int rv; 142280297Sjkim rv = OBJ_cmp(a->algorithm, b->algorithm); 143280297Sjkim if (rv) 144280297Sjkim return rv; 145280297Sjkim if (!a->parameter && !b->parameter) 146280297Sjkim return 0; 147280297Sjkim return ASN1_TYPE_cmp(a->parameter, b->parameter); 148280297Sjkim} 149