155714Skris/* crypto/x509/x509_req.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22280304Sjkim * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52280304Sjkim * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include "cryptlib.h" 6155714Skris#include <openssl/bn.h> 6255714Skris#include <openssl/evp.h> 6355714Skris#include <openssl/asn1.h> 64238405Sjkim#include <openssl/asn1t.h> 6555714Skris#include <openssl/x509.h> 6655714Skris#include <openssl/objects.h> 6755714Skris#include <openssl/buffer.h> 6855714Skris#include <openssl/pem.h> 6955714Skris 7059191SkrisX509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md) 71280304Sjkim{ 72280304Sjkim X509_REQ *ret; 73280304Sjkim X509_REQ_INFO *ri; 74280304Sjkim int i; 75280304Sjkim EVP_PKEY *pktmp; 7655714Skris 77280304Sjkim ret = X509_REQ_new(); 78280304Sjkim if (ret == NULL) { 79280304Sjkim X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE); 80280304Sjkim goto err; 81280304Sjkim } 8255714Skris 83280304Sjkim ri = ret->req_info; 8455714Skris 85280304Sjkim ri->version->length = 1; 86280304Sjkim ri->version->data = (unsigned char *)OPENSSL_malloc(1); 87280304Sjkim if (ri->version->data == NULL) 88280304Sjkim goto err; 89280304Sjkim ri->version->data[0] = 0; /* version == 0 */ 9055714Skris 91280304Sjkim if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x))) 92280304Sjkim goto err; 9355714Skris 94280304Sjkim pktmp = X509_get_pubkey(x); 95280304Sjkim if (pktmp == NULL) 96280304Sjkim goto err; 97280304Sjkim i = X509_REQ_set_pubkey(ret, pktmp); 98280304Sjkim EVP_PKEY_free(pktmp); 99280304Sjkim if (!i) 100280304Sjkim goto err; 10155714Skris 102280304Sjkim if (pkey != NULL) { 103280304Sjkim if (!X509_REQ_sign(ret, pkey, md)) 104280304Sjkim goto err; 105280304Sjkim } 106280304Sjkim return (ret); 107280304Sjkim err: 108280304Sjkim X509_REQ_free(ret); 109280304Sjkim return (NULL); 110280304Sjkim} 11155714Skris 11255714SkrisEVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) 113280304Sjkim{ 114280304Sjkim if ((req == NULL) || (req->req_info == NULL)) 115280304Sjkim return (NULL); 116280304Sjkim return (X509_PUBKEY_get(req->req_info->pubkey)); 117280304Sjkim} 11855714Skris 119160814Ssimonint X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) 120280304Sjkim{ 121280304Sjkim EVP_PKEY *xk = NULL; 122280304Sjkim int ok = 0; 123160814Ssimon 124280304Sjkim xk = X509_REQ_get_pubkey(x); 125280304Sjkim switch (EVP_PKEY_cmp(xk, k)) { 126280304Sjkim case 1: 127280304Sjkim ok = 1; 128280304Sjkim break; 129280304Sjkim case 0: 130280304Sjkim X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, 131280304Sjkim X509_R_KEY_VALUES_MISMATCH); 132280304Sjkim break; 133280304Sjkim case -1: 134280304Sjkim X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH); 135280304Sjkim break; 136280304Sjkim case -2: 137160814Ssimon#ifndef OPENSSL_NO_EC 138280304Sjkim if (k->type == EVP_PKEY_EC) { 139280304Sjkim X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); 140280304Sjkim break; 141280304Sjkim } 142160814Ssimon#endif 143160814Ssimon#ifndef OPENSSL_NO_DH 144280304Sjkim if (k->type == EVP_PKEY_DH) { 145280304Sjkim /* No idea */ 146280304Sjkim X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, 147280304Sjkim X509_R_CANT_CHECK_DH_KEY); 148280304Sjkim break; 149280304Sjkim } 150160814Ssimon#endif 151280304Sjkim X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE); 152280304Sjkim } 153160814Ssimon 154280304Sjkim EVP_PKEY_free(xk); 155280304Sjkim return (ok); 156280304Sjkim} 157160814Ssimon 158280304Sjkim/* 159280304Sjkim * It seems several organisations had the same idea of including a list of 16059191Skris * extensions in a certificate request. There are at least two OIDs that are 16159191Skris * used and there may be more: so the list is configurable. 16259191Skris */ 16359191Skris 164280304Sjkimstatic int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef }; 16559191Skris 16659191Skrisstatic int *ext_nids = ext_nid_list; 16759191Skris 16859191Skrisint X509_REQ_extension_nid(int req_nid) 16959191Skris{ 170280304Sjkim int i, nid; 171280304Sjkim for (i = 0;; i++) { 172280304Sjkim nid = ext_nids[i]; 173280304Sjkim if (nid == NID_undef) 174280304Sjkim return 0; 175280304Sjkim else if (req_nid == nid) 176280304Sjkim return 1; 177280304Sjkim } 17859191Skris} 17959191Skris 18059191Skrisint *X509_REQ_get_extension_nids(void) 18159191Skris{ 182280304Sjkim return ext_nids; 18359191Skris} 184280304Sjkim 18559191Skrisvoid X509_REQ_set_extension_nids(int *nids) 18659191Skris{ 187280304Sjkim ext_nids = nids; 18859191Skris} 18959191Skris 19059191SkrisSTACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) 191280304Sjkim{ 192280304Sjkim X509_ATTRIBUTE *attr; 193280304Sjkim ASN1_TYPE *ext = NULL; 194280304Sjkim int idx, *pnid; 195280304Sjkim const unsigned char *p; 196142425Snectar 197280304Sjkim if ((req == NULL) || (req->req_info == NULL) || !ext_nids) 198280304Sjkim return (NULL); 199280304Sjkim for (pnid = ext_nids; *pnid != NID_undef; pnid++) { 200280304Sjkim idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); 201280304Sjkim if (idx == -1) 202280304Sjkim continue; 203280304Sjkim attr = X509_REQ_get_attr(req, idx); 204280304Sjkim if (attr->single) 205280304Sjkim ext = attr->value.single; 206280304Sjkim else if (sk_ASN1_TYPE_num(attr->value.set)) 207280304Sjkim ext = sk_ASN1_TYPE_value(attr->value.set, 0); 208280304Sjkim break; 209280304Sjkim } 210280304Sjkim if (!ext || (ext->type != V_ASN1_SEQUENCE)) 211280304Sjkim return NULL; 212280304Sjkim p = ext->value.sequence->data; 213280304Sjkim return (STACK_OF(X509_EXTENSION) *) 214280304Sjkim ASN1_item_d2i(NULL, &p, ext->value.sequence->length, 215280304Sjkim ASN1_ITEM_rptr(X509_EXTENSIONS)); 216160814Ssimon} 21759191Skris 218280304Sjkim/* 219280304Sjkim * Add a STACK_OF extensions to a certificate request: allow alternative OIDs 22059191Skris * in case we want to create a non standard one. 22159191Skris */ 22259191Skris 22359191Skrisint X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts, 224280304Sjkim int nid) 22559191Skris{ 226280304Sjkim ASN1_TYPE *at = NULL; 227280304Sjkim X509_ATTRIBUTE *attr = NULL; 228280304Sjkim if (!(at = ASN1_TYPE_new()) || !(at->value.sequence = ASN1_STRING_new())) 229280304Sjkim goto err; 23059191Skris 231280304Sjkim at->type = V_ASN1_SEQUENCE; 232280304Sjkim /* Generate encoding of extensions */ 233280304Sjkim at->value.sequence->length = 234280304Sjkim ASN1_item_i2d((ASN1_VALUE *)exts, 235280304Sjkim &at->value.sequence->data, 236280304Sjkim ASN1_ITEM_rptr(X509_EXTENSIONS)); 237280304Sjkim if (!(attr = X509_ATTRIBUTE_new())) 238280304Sjkim goto err; 239280304Sjkim if (!(attr->value.set = sk_ASN1_TYPE_new_null())) 240280304Sjkim goto err; 241280304Sjkim if (!sk_ASN1_TYPE_push(attr->value.set, at)) 242280304Sjkim goto err; 243280304Sjkim at = NULL; 244280304Sjkim attr->single = 0; 245280304Sjkim attr->object = OBJ_nid2obj(nid); 246280304Sjkim if (!req->req_info->attributes) { 247280304Sjkim if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null())) 248280304Sjkim goto err; 249280304Sjkim } 250280304Sjkim if (!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) 251280304Sjkim goto err; 252280304Sjkim return 1; 253280304Sjkim err: 254280304Sjkim X509_ATTRIBUTE_free(attr); 255280304Sjkim ASN1_TYPE_free(at); 256280304Sjkim return 0; 25759191Skris} 258280304Sjkim 25959191Skris/* This is the normal usage: use the "official" OID */ 26059191Skrisint X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) 26159191Skris{ 262280304Sjkim return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); 26359191Skris} 26459191Skris 26559191Skris/* Request attribute functions */ 26659191Skris 26759191Skrisint X509_REQ_get_attr_count(const X509_REQ *req) 26859191Skris{ 269280304Sjkim return X509at_get_attr_count(req->req_info->attributes); 27059191Skris} 27159191Skris 272280304Sjkimint X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos) 27359191Skris{ 274280304Sjkim return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos); 27559191Skris} 27659191Skris 27759191Skrisint X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj, 278280304Sjkim int lastpos) 27959191Skris{ 280280304Sjkim return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos); 28159191Skris} 28259191Skris 28359191SkrisX509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc) 28459191Skris{ 285280304Sjkim return X509at_get_attr(req->req_info->attributes, loc); 28659191Skris} 28759191Skris 28859191SkrisX509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) 28959191Skris{ 290280304Sjkim return X509at_delete_attr(req->req_info->attributes, loc); 29159191Skris} 29259191Skris 29359191Skrisint X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) 29459191Skris{ 295280304Sjkim if (X509at_add1_attr(&req->req_info->attributes, attr)) 296280304Sjkim return 1; 297280304Sjkim return 0; 29859191Skris} 29959191Skris 30059191Skrisint X509_REQ_add1_attr_by_OBJ(X509_REQ *req, 301280304Sjkim const ASN1_OBJECT *obj, int type, 302280304Sjkim const unsigned char *bytes, int len) 30359191Skris{ 304280304Sjkim if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj, 305280304Sjkim type, bytes, len)) 306280304Sjkim return 1; 307280304Sjkim return 0; 30859191Skris} 30959191Skris 31059191Skrisint X509_REQ_add1_attr_by_NID(X509_REQ *req, 311280304Sjkim int nid, int type, 312280304Sjkim const unsigned char *bytes, int len) 31359191Skris{ 314280304Sjkim if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid, 315280304Sjkim type, bytes, len)) 316280304Sjkim return 1; 317280304Sjkim return 0; 31859191Skris} 31959191Skris 32059191Skrisint X509_REQ_add1_attr_by_txt(X509_REQ *req, 321280304Sjkim const char *attrname, int type, 322280304Sjkim const unsigned char *bytes, int len) 32359191Skris{ 324280304Sjkim if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname, 325280304Sjkim type, bytes, len)) 326280304Sjkim return 1; 327280304Sjkim return 0; 32859191Skris} 329