x_algor.c revision 276861
1109998Smarkm/* x_algor.c */ 2194206Ssimon/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3109998Smarkm * project 2000. 4109998Smarkm */ 5109998Smarkm/* ==================================================================== 6109998Smarkm * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 755714Skris * 855714Skris * Redistribution and use in source and binary forms, with or without 955714Skris * modification, are permitted provided that the following conditions 1055714Skris * are met: 11109998Smarkm * 12109998Smarkm * 1. Redistributions of source code must retain the above copyright 13109998Smarkm * notice, this list of conditions and the following disclaimer. 14109998Smarkm * 1555714Skris * 2. Redistributions in binary form must reproduce the above copyright 16109998Smarkm * notice, this list of conditions and the following disclaimer in 17109998Smarkm * the documentation and/or other materials provided with the 18109998Smarkm * distribution. 19109998Smarkm * 20109998Smarkm * 3. All advertising materials mentioning features or use of this 21109998Smarkm * software must display the following acknowledgment: 22109998Smarkm * "This product includes software developed by the OpenSSL Project 23109998Smarkm * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24109998Smarkm * 25109998Smarkm * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26109998Smarkm * endorse or promote products derived from this software without 27109998Smarkm * prior written permission. For written permission, please contact 28109998Smarkm * licensing@OpenSSL.org. 29109998Smarkm * 30109998Smarkm * 5. Products derived from this software may not be called "OpenSSL" 31109998Smarkm * nor may "OpenSSL" appear in their names without prior written 32109998Smarkm * permission of the OpenSSL Project. 33109998Smarkm * 34109998Smarkm * 6. Redistributions of any form whatsoever must retain the following 35109998Smarkm * acknowledgment: 36109998Smarkm * "This product includes software developed by the OpenSSL Project 37109998Smarkm * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38109998Smarkm * 39109998Smarkm * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40109998Smarkm * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42109998Smarkm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43109998Smarkm * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44109998Smarkm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45109998Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46109998Smarkm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48109998Smarkm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49109998Smarkm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50109998Smarkm * OF THE POSSIBILITY OF SUCH DAMAGE. 51109998Smarkm * ==================================================================== 52109998Smarkm * 53109998Smarkm * This product includes cryptographic software written by Eric Young 54109998Smarkm * (eay@cryptsoft.com). This product includes software written by Tim 55109998Smarkm * Hudson (tjh@cryptsoft.com). 56109998Smarkm * 5755714Skris */ 5855714Skris 59109998Smarkm#include <stddef.h> 6055714Skris#include <openssl/x509.h> 61109998Smarkm#include <openssl/asn1.h> 62109998Smarkm#include <openssl/asn1t.h> 6355714Skris 64109998SmarkmASN1_SEQUENCE(X509_ALGOR) = { 65109998Smarkm ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT), 66109998Smarkm ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY) 67109998Smarkm} ASN1_SEQUENCE_END(X509_ALGOR) 6855714Skris 69194206SsimonASN1_ITEM_TEMPLATE(X509_ALGORS) = 70194206Ssimon ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR) 71194206SsimonASN1_ITEM_TEMPLATE_END(X509_ALGORS) 72194206Ssimon 73109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR) 74194206SsimonIMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS) 75109998SmarkmIMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR) 7655714Skris 7755714SkrisIMPLEMENT_STACK_OF(X509_ALGOR) 7855714SkrisIMPLEMENT_ASN1_SET_OF(X509_ALGOR) 79194206Ssimon 80194206Ssimonint X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval) 81194206Ssimon { 82194206Ssimon if (!alg) 83194206Ssimon return 0; 84194206Ssimon if (ptype != V_ASN1_UNDEF) 85194206Ssimon { 86194206Ssimon if (alg->parameter == NULL) 87194206Ssimon alg->parameter = ASN1_TYPE_new(); 88194206Ssimon if (alg->parameter == NULL) 89194206Ssimon return 0; 90194206Ssimon } 91194206Ssimon if (alg) 92194206Ssimon { 93194206Ssimon if (alg->algorithm) 94194206Ssimon ASN1_OBJECT_free(alg->algorithm); 95194206Ssimon alg->algorithm = aobj; 96194206Ssimon } 97194206Ssimon if (ptype == 0) 98194206Ssimon return 1; 99194206Ssimon if (ptype == V_ASN1_UNDEF) 100194206Ssimon { 101194206Ssimon if (alg->parameter) 102194206Ssimon { 103194206Ssimon ASN1_TYPE_free(alg->parameter); 104194206Ssimon alg->parameter = NULL; 105194206Ssimon } 106194206Ssimon } 107194206Ssimon else 108194206Ssimon ASN1_TYPE_set(alg->parameter, ptype, pval); 109194206Ssimon return 1; 110194206Ssimon } 111194206Ssimon 112194206Ssimonvoid X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval, 113194206Ssimon X509_ALGOR *algor) 114194206Ssimon { 115194206Ssimon if (paobj) 116194206Ssimon *paobj = algor->algorithm; 117194206Ssimon if (pptype) 118194206Ssimon { 119194206Ssimon if (algor->parameter == NULL) 120194206Ssimon { 121194206Ssimon *pptype = V_ASN1_UNDEF; 122194206Ssimon return; 123194206Ssimon } 124194206Ssimon else 125194206Ssimon *pptype = algor->parameter->type; 126194206Ssimon if (ppval) 127194206Ssimon *ppval = algor->parameter->value.ptr; 128194206Ssimon } 129194206Ssimon } 130194206Ssimon 131238405Sjkim/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */ 132238405Sjkim 133238405Sjkimvoid X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md) 134238405Sjkim { 135238405Sjkim int param_type; 136238405Sjkim 137238405Sjkim if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT) 138238405Sjkim param_type = V_ASN1_UNDEF; 139238405Sjkim else 140238405Sjkim param_type = V_ASN1_NULL; 141238405Sjkim 142238405Sjkim X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL); 143238405Sjkim 144238405Sjkim } 145276861Sjkim 146276861Sjkimint X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b) 147276861Sjkim { 148276861Sjkim int rv; 149276861Sjkim rv = OBJ_cmp(a->algorithm, b->algorithm); 150276861Sjkim if (rv) 151276861Sjkim return rv; 152276861Sjkim if (!a->parameter && !b->parameter) 153276861Sjkim return 0; 154276861Sjkim return ASN1_TYPE_cmp(a->parameter, b->parameter); 155276861Sjkim } 156