155714Skris/* v3_akey.c */ 2280297Sjkim/* 3280297Sjkim * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4280297Sjkim * 1999. 555714Skris */ 655714Skris/* ==================================================================== 755714Skris * Copyright (c) 1999 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: 1255714Skris * 1355714Skris * 1. Redistributions of source code must retain the above copyright 14280297Sjkim * notice, this list of conditions and the following disclaimer. 1555714Skris * 1655714Skris * 2. Redistributions in binary form must reproduce the above copyright 1755714Skris * notice, this list of conditions and the following disclaimer in 1855714Skris * the documentation and/or other materials provided with the 1955714Skris * distribution. 2055714Skris * 2155714Skris * 3. All advertising materials mentioning features or use of this 2255714Skris * software must display the following acknowledgment: 2355714Skris * "This product includes software developed by the OpenSSL Project 2455714Skris * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 2555714Skris * 2655714Skris * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 2755714Skris * endorse or promote products derived from this software without 2855714Skris * prior written permission. For written permission, please contact 2955714Skris * licensing@OpenSSL.org. 3055714Skris * 3155714Skris * 5. Products derived from this software may not be called "OpenSSL" 3255714Skris * nor may "OpenSSL" appear in their names without prior written 3355714Skris * permission of the OpenSSL Project. 3455714Skris * 3555714Skris * 6. Redistributions of any form whatsoever must retain the following 3655714Skris * acknowledgment: 3755714Skris * "This product includes software developed by the OpenSSL Project 3855714Skris * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 3955714Skris * 4055714Skris * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 4155714Skris * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4255714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 4355714Skris * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 4455714Skris * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 4555714Skris * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 4655714Skris * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 4755714Skris * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 4955714Skris * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 5055714Skris * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 5155714Skris * OF THE POSSIBILITY OF SUCH DAMAGE. 5255714Skris * ==================================================================== 5355714Skris * 5455714Skris * This product includes cryptographic software written by Eric Young 5555714Skris * (eay@cryptsoft.com). This product includes software written by Tim 5655714Skris * Hudson (tjh@cryptsoft.com). 5755714Skris * 5855714Skris */ 5955714Skris 6055714Skris#include <stdio.h> 6155714Skris#include "cryptlib.h" 6255714Skris#include <openssl/conf.h> 6355714Skris#include <openssl/asn1.h> 64109998Smarkm#include <openssl/asn1t.h> 6555714Skris#include <openssl/x509v3.h> 6655714Skris 6755714Skrisstatic STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, 68280297Sjkim AUTHORITY_KEYID *akeyid, 69280297Sjkim STACK_OF(CONF_VALUE) 70280297Sjkim *extlist); 7155714Skrisstatic AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, 72280297Sjkim X509V3_CTX *ctx, 73280297Sjkim STACK_OF(CONF_VALUE) *values); 7455714Skris 75280297Sjkimconst X509V3_EXT_METHOD v3_akey_id = { 76280297Sjkim NID_authority_key_identifier, 77280297Sjkim X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID), 78280297Sjkim 0, 0, 0, 0, 79280297Sjkim 0, 0, 80280297Sjkim (X509V3_EXT_I2V) i2v_AUTHORITY_KEYID, 81280297Sjkim (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID, 82280297Sjkim 0, 0, 83280297Sjkim NULL 84280297Sjkim}; 8555714Skris 8655714Skrisstatic STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, 87280297Sjkim AUTHORITY_KEYID *akeyid, 88280297Sjkim STACK_OF(CONF_VALUE) 89280297Sjkim *extlist) 9055714Skris{ 91280297Sjkim char *tmp; 92280297Sjkim if (akeyid->keyid) { 93280297Sjkim tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length); 94280297Sjkim X509V3_add_value("keyid", tmp, &extlist); 95280297Sjkim OPENSSL_free(tmp); 96280297Sjkim } 97280297Sjkim if (akeyid->issuer) 98280297Sjkim extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist); 99280297Sjkim if (akeyid->serial) { 100280297Sjkim tmp = hex_to_string(akeyid->serial->data, akeyid->serial->length); 101280297Sjkim X509V3_add_value("serial", tmp, &extlist); 102280297Sjkim OPENSSL_free(tmp); 103280297Sjkim } 104280297Sjkim return extlist; 10555714Skris} 10655714Skris 107280297Sjkim/*- 108280297Sjkim * Currently two options: 10955714Skris * keyid: use the issuers subject keyid, the value 'always' means its is 11055714Skris * an error if the issuer certificate doesn't have a key id. 11155714Skris * issuer: use the issuers cert issuer and serial number. The default is 11255714Skris * to only use this if keyid is not present. With the option 'always' 11355714Skris * this is always included. 11455714Skris */ 11555714Skris 11655714Skrisstatic AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, 117280297Sjkim X509V3_CTX *ctx, 118280297Sjkim STACK_OF(CONF_VALUE) *values) 119280297Sjkim{ 120280297Sjkim char keyid = 0, issuer = 0; 121280297Sjkim int i; 122280297Sjkim CONF_VALUE *cnf; 123280297Sjkim ASN1_OCTET_STRING *ikeyid = NULL; 124280297Sjkim X509_NAME *isname = NULL; 125280297Sjkim GENERAL_NAMES *gens = NULL; 126280297Sjkim GENERAL_NAME *gen = NULL; 127280297Sjkim ASN1_INTEGER *serial = NULL; 128280297Sjkim X509_EXTENSION *ext; 129280297Sjkim X509 *cert; 130280297Sjkim AUTHORITY_KEYID *akeyid; 13155714Skris 132280297Sjkim for (i = 0; i < sk_CONF_VALUE_num(values); i++) { 133280297Sjkim cnf = sk_CONF_VALUE_value(values, i); 134280297Sjkim if (!strcmp(cnf->name, "keyid")) { 135280297Sjkim keyid = 1; 136280297Sjkim if (cnf->value && !strcmp(cnf->value, "always")) 137280297Sjkim keyid = 2; 138280297Sjkim } else if (!strcmp(cnf->name, "issuer")) { 139280297Sjkim issuer = 1; 140280297Sjkim if (cnf->value && !strcmp(cnf->value, "always")) 141280297Sjkim issuer = 2; 142280297Sjkim } else { 143280297Sjkim X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, X509V3_R_UNKNOWN_OPTION); 144280297Sjkim ERR_add_error_data(2, "name=", cnf->name); 145280297Sjkim return NULL; 146280297Sjkim } 147280297Sjkim } 14855714Skris 149280297Sjkim if (!ctx || !ctx->issuer_cert) { 150280297Sjkim if (ctx && (ctx->flags == CTX_TEST)) 151280297Sjkim return AUTHORITY_KEYID_new(); 152280297Sjkim X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, 153280297Sjkim X509V3_R_NO_ISSUER_CERTIFICATE); 154280297Sjkim return NULL; 155280297Sjkim } 15655714Skris 157280297Sjkim cert = ctx->issuer_cert; 15855714Skris 159280297Sjkim if (keyid) { 160280297Sjkim i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1); 161280297Sjkim if ((i >= 0) && (ext = X509_get_ext(cert, i))) 162280297Sjkim ikeyid = X509V3_EXT_d2i(ext); 163280297Sjkim if (keyid == 2 && !ikeyid) { 164280297Sjkim X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, 165280297Sjkim X509V3_R_UNABLE_TO_GET_ISSUER_KEYID); 166280297Sjkim return NULL; 167280297Sjkim } 168280297Sjkim } 16955714Skris 170280297Sjkim if ((issuer && !ikeyid) || (issuer == 2)) { 171280297Sjkim isname = X509_NAME_dup(X509_get_issuer_name(cert)); 172280297Sjkim serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert)); 173280297Sjkim if (!isname || !serial) { 174280297Sjkim X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, 175280297Sjkim X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS); 176280297Sjkim goto err; 177280297Sjkim } 178280297Sjkim } 17955714Skris 180280297Sjkim if (!(akeyid = AUTHORITY_KEYID_new())) 181280297Sjkim goto err; 18255714Skris 183280297Sjkim if (isname) { 184280297Sjkim if (!(gens = sk_GENERAL_NAME_new_null()) 185280297Sjkim || !(gen = GENERAL_NAME_new()) 186280297Sjkim || !sk_GENERAL_NAME_push(gens, gen)) { 187280297Sjkim X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, ERR_R_MALLOC_FAILURE); 188280297Sjkim goto err; 189280297Sjkim } 190280297Sjkim gen->type = GEN_DIRNAME; 191280297Sjkim gen->d.dirn = isname; 192280297Sjkim } 19355714Skris 194280297Sjkim akeyid->issuer = gens; 195280297Sjkim akeyid->serial = serial; 196280297Sjkim akeyid->keyid = ikeyid; 19755714Skris 198280297Sjkim return akeyid; 19955714Skris 200160814Ssimon err: 201280297Sjkim X509_NAME_free(isname); 202280297Sjkim M_ASN1_INTEGER_free(serial); 203280297Sjkim M_ASN1_OCTET_STRING_free(ikeyid); 204280297Sjkim return NULL; 205280297Sjkim} 206