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. 855714Skris * 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). 1555714Skris * 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. 2255714Skris * 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 :-). 3755714Skris * 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)" 4055714Skris * 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. 5255714Skris * 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) 7155714Skris { 7255714Skris X509_REQ *ret; 7355714Skris X509_REQ_INFO *ri; 7455714Skris int i; 7555714Skris EVP_PKEY *pktmp; 7655714Skris 7755714Skris ret=X509_REQ_new(); 7855714Skris if (ret == NULL) 7955714Skris { 8055714Skris X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE); 8155714Skris goto err; 8255714Skris } 8355714Skris 8455714Skris ri=ret->req_info; 8555714Skris 8655714Skris ri->version->length=1; 8768651Skris ri->version->data=(unsigned char *)OPENSSL_malloc(1); 8855714Skris if (ri->version->data == NULL) goto err; 8955714Skris ri->version->data[0]=0; /* version == 0 */ 9055714Skris 9155714Skris if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x))) 9255714Skris goto err; 9355714Skris 9455714Skris pktmp = X509_get_pubkey(x); 9555714Skris i=X509_REQ_set_pubkey(ret,pktmp); 9655714Skris EVP_PKEY_free(pktmp); 9755714Skris if (!i) goto err; 9855714Skris 9955714Skris if (pkey != NULL) 10055714Skris { 10155714Skris if (!X509_REQ_sign(ret,pkey,md)) 10255714Skris goto err; 10355714Skris } 10455714Skris return(ret); 10555714Skriserr: 10655714Skris X509_REQ_free(ret); 10755714Skris return(NULL); 10855714Skris } 10955714Skris 11055714SkrisEVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) 11155714Skris { 11255714Skris if ((req == NULL) || (req->req_info == NULL)) 11355714Skris return(NULL); 11455714Skris return(X509_PUBKEY_get(req->req_info->pubkey)); 11555714Skris } 11655714Skris 117160814Ssimonint X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) 118160814Ssimon { 119160814Ssimon EVP_PKEY *xk=NULL; 120160814Ssimon int ok=0; 121160814Ssimon 122160814Ssimon xk=X509_REQ_get_pubkey(x); 123160814Ssimon switch (EVP_PKEY_cmp(xk, k)) 124160814Ssimon { 125160814Ssimon case 1: 126160814Ssimon ok=1; 127160814Ssimon break; 128160814Ssimon case 0: 129160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH); 130160814Ssimon break; 131160814Ssimon case -1: 132160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH); 133160814Ssimon break; 134160814Ssimon case -2: 135160814Ssimon#ifndef OPENSSL_NO_EC 136160814Ssimon if (k->type == EVP_PKEY_EC) 137160814Ssimon { 138160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); 139160814Ssimon break; 140160814Ssimon } 141160814Ssimon#endif 142160814Ssimon#ifndef OPENSSL_NO_DH 143160814Ssimon if (k->type == EVP_PKEY_DH) 144160814Ssimon { 145160814Ssimon /* No idea */ 146160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY); 147160814Ssimon break; 148160814Ssimon } 149160814Ssimon#endif 150160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE); 151160814Ssimon } 152160814Ssimon 153160814Ssimon EVP_PKEY_free(xk); 154160814Ssimon return(ok); 155160814Ssimon } 156160814Ssimon 15759191Skris/* It seems several organisations had the same idea of including a list of 15859191Skris * extensions in a certificate request. There are at least two OIDs that are 15959191Skris * used and there may be more: so the list is configurable. 16059191Skris */ 16159191Skris 162142425Snectarstatic int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef}; 16359191Skris 16459191Skrisstatic int *ext_nids = ext_nid_list; 16559191Skris 16659191Skrisint X509_REQ_extension_nid(int req_nid) 16759191Skris{ 16859191Skris int i, nid; 16959191Skris for(i = 0; ; i++) { 17059191Skris nid = ext_nids[i]; 17159191Skris if(nid == NID_undef) return 0; 17259191Skris else if (req_nid == nid) return 1; 17359191Skris } 17459191Skris} 17559191Skris 17659191Skrisint *X509_REQ_get_extension_nids(void) 17759191Skris{ 17859191Skris return ext_nids; 17959191Skris} 18059191Skris 18159191Skrisvoid X509_REQ_set_extension_nids(int *nids) 18259191Skris{ 18359191Skris ext_nids = nids; 18459191Skris} 18559191Skris 18659191SkrisSTACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) 187142425Snectar { 18859191Skris X509_ATTRIBUTE *attr; 18959191Skris ASN1_TYPE *ext = NULL; 190142425Snectar int idx, *pnid; 191160814Ssimon const unsigned char *p; 192142425Snectar 193142425Snectar if ((req == NULL) || (req->req_info == NULL) || !ext_nids) 19459191Skris return(NULL); 195142425Snectar for (pnid = ext_nids; *pnid != NID_undef; pnid++) 196142425Snectar { 197142425Snectar idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); 198142425Snectar if (idx == -1) 199142425Snectar continue; 200142425Snectar attr = X509_REQ_get_attr(req, idx); 201142425Snectar if(attr->single) ext = attr->value.single; 202142425Snectar else if(sk_ASN1_TYPE_num(attr->value.set)) 203142425Snectar ext = sk_ASN1_TYPE_value(attr->value.set, 0); 204142425Snectar break; 20559191Skris } 206142425Snectar if(!ext || (ext->type != V_ASN1_SEQUENCE)) 207142425Snectar return NULL; 20859191Skris p = ext->value.sequence->data; 209238405Sjkim return (STACK_OF(X509_EXTENSION) *) 210238405Sjkim ASN1_item_d2i(NULL, &p, ext->value.sequence->length, 211238405Sjkim ASN1_ITEM_rptr(X509_EXTENSIONS)); 212160814Ssimon} 21359191Skris 21459191Skris/* Add a STACK_OF extensions to a certificate request: allow alternative OIDs 21559191Skris * in case we want to create a non standard one. 21659191Skris */ 21759191Skris 21859191Skrisint X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts, 21959191Skris int nid) 22059191Skris{ 22159191Skris ASN1_TYPE *at = NULL; 22259191Skris X509_ATTRIBUTE *attr = NULL; 22359191Skris if(!(at = ASN1_TYPE_new()) || 22459191Skris !(at->value.sequence = ASN1_STRING_new())) goto err; 22559191Skris 22659191Skris at->type = V_ASN1_SEQUENCE; 22759191Skris /* Generate encoding of extensions */ 228238405Sjkim at->value.sequence->length = 229238405Sjkim ASN1_item_i2d((ASN1_VALUE *)exts, 230238405Sjkim &at->value.sequence->data, 231238405Sjkim ASN1_ITEM_rptr(X509_EXTENSIONS)); 23259191Skris if(!(attr = X509_ATTRIBUTE_new())) goto err; 23359191Skris if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err; 23459191Skris if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err; 23559191Skris at = NULL; 236109998Smarkm attr->single = 0; 23759191Skris attr->object = OBJ_nid2obj(nid); 238167612Ssimon if (!req->req_info->attributes) 239167612Ssimon { 240167612Ssimon if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null())) 241167612Ssimon goto err; 242167612Ssimon } 24359191Skris if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err; 24459191Skris return 1; 24559191Skris err: 24659191Skris X509_ATTRIBUTE_free(attr); 24759191Skris ASN1_TYPE_free(at); 24859191Skris return 0; 24959191Skris} 25059191Skris/* This is the normal usage: use the "official" OID */ 25159191Skrisint X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) 25259191Skris{ 25359191Skris return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); 25459191Skris} 25559191Skris 25659191Skris/* Request attribute functions */ 25759191Skris 25859191Skrisint X509_REQ_get_attr_count(const X509_REQ *req) 25959191Skris{ 26059191Skris return X509at_get_attr_count(req->req_info->attributes); 26159191Skris} 26259191Skris 26359191Skrisint X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, 26459191Skris int lastpos) 26559191Skris{ 26659191Skris return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos); 26759191Skris} 26859191Skris 26959191Skrisint X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj, 27059191Skris int lastpos) 27159191Skris{ 27259191Skris return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos); 27359191Skris} 27459191Skris 27559191SkrisX509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc) 27659191Skris{ 27759191Skris return X509at_get_attr(req->req_info->attributes, loc); 27859191Skris} 27959191Skris 28059191SkrisX509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) 28159191Skris{ 28259191Skris return X509at_delete_attr(req->req_info->attributes, loc); 28359191Skris} 28459191Skris 28559191Skrisint X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) 28659191Skris{ 28759191Skris if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1; 28859191Skris return 0; 28959191Skris} 29059191Skris 29159191Skrisint X509_REQ_add1_attr_by_OBJ(X509_REQ *req, 292109998Smarkm const ASN1_OBJECT *obj, int type, 293109998Smarkm const unsigned char *bytes, int len) 29459191Skris{ 29559191Skris if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj, 29659191Skris type, bytes, len)) return 1; 29759191Skris return 0; 29859191Skris} 29959191Skris 30059191Skrisint X509_REQ_add1_attr_by_NID(X509_REQ *req, 30159191Skris int nid, int type, 302109998Smarkm const unsigned char *bytes, int len) 30359191Skris{ 30459191Skris if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid, 30559191Skris type, bytes, len)) return 1; 30659191Skris return 0; 30759191Skris} 30859191Skris 30959191Skrisint X509_REQ_add1_attr_by_txt(X509_REQ *req, 310109998Smarkm const char *attrname, int type, 311109998Smarkm const unsigned char *bytes, int len) 31259191Skris{ 31359191Skris if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname, 31459191Skris type, bytes, len)) return 1; 31559191Skris return 0; 31659191Skris} 317