x509_req.c revision 167612
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> 6455714Skris#include <openssl/x509.h> 6555714Skris#include <openssl/objects.h> 6655714Skris#include <openssl/buffer.h> 6755714Skris#include <openssl/pem.h> 6855714Skris 6959191SkrisX509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md) 7055714Skris { 7155714Skris X509_REQ *ret; 7255714Skris X509_REQ_INFO *ri; 7355714Skris int i; 7455714Skris EVP_PKEY *pktmp; 7555714Skris 7655714Skris ret=X509_REQ_new(); 7755714Skris if (ret == NULL) 7855714Skris { 7955714Skris X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE); 8055714Skris goto err; 8155714Skris } 8255714Skris 8355714Skris ri=ret->req_info; 8455714Skris 8555714Skris ri->version->length=1; 8668651Skris ri->version->data=(unsigned char *)OPENSSL_malloc(1); 8755714Skris if (ri->version->data == NULL) goto err; 8855714Skris ri->version->data[0]=0; /* version == 0 */ 8955714Skris 9055714Skris if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x))) 9155714Skris goto err; 9255714Skris 9355714Skris pktmp = X509_get_pubkey(x); 9455714Skris i=X509_REQ_set_pubkey(ret,pktmp); 9555714Skris EVP_PKEY_free(pktmp); 9655714Skris if (!i) goto err; 9755714Skris 9855714Skris if (pkey != NULL) 9955714Skris { 10055714Skris if (!X509_REQ_sign(ret,pkey,md)) 10155714Skris goto err; 10255714Skris } 10355714Skris return(ret); 10455714Skriserr: 10555714Skris X509_REQ_free(ret); 10655714Skris return(NULL); 10755714Skris } 10855714Skris 10955714SkrisEVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) 11055714Skris { 11155714Skris if ((req == NULL) || (req->req_info == NULL)) 11255714Skris return(NULL); 11355714Skris return(X509_PUBKEY_get(req->req_info->pubkey)); 11455714Skris } 11555714Skris 116160814Ssimonint X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) 117160814Ssimon { 118160814Ssimon EVP_PKEY *xk=NULL; 119160814Ssimon int ok=0; 120160814Ssimon 121160814Ssimon xk=X509_REQ_get_pubkey(x); 122160814Ssimon switch (EVP_PKEY_cmp(xk, k)) 123160814Ssimon { 124160814Ssimon case 1: 125160814Ssimon ok=1; 126160814Ssimon break; 127160814Ssimon case 0: 128160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH); 129160814Ssimon break; 130160814Ssimon case -1: 131160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH); 132160814Ssimon break; 133160814Ssimon case -2: 134160814Ssimon#ifndef OPENSSL_NO_EC 135160814Ssimon if (k->type == EVP_PKEY_EC) 136160814Ssimon { 137160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); 138160814Ssimon break; 139160814Ssimon } 140160814Ssimon#endif 141160814Ssimon#ifndef OPENSSL_NO_DH 142160814Ssimon if (k->type == EVP_PKEY_DH) 143160814Ssimon { 144160814Ssimon /* No idea */ 145160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY); 146160814Ssimon break; 147160814Ssimon } 148160814Ssimon#endif 149160814Ssimon X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE); 150160814Ssimon } 151160814Ssimon 152160814Ssimon EVP_PKEY_free(xk); 153160814Ssimon return(ok); 154160814Ssimon } 155160814Ssimon 15659191Skris/* It seems several organisations had the same idea of including a list of 15759191Skris * extensions in a certificate request. There are at least two OIDs that are 15859191Skris * used and there may be more: so the list is configurable. 15959191Skris */ 16059191Skris 161142425Snectarstatic int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef}; 16259191Skris 16359191Skrisstatic int *ext_nids = ext_nid_list; 16459191Skris 16559191Skrisint X509_REQ_extension_nid(int req_nid) 16659191Skris{ 16759191Skris int i, nid; 16859191Skris for(i = 0; ; i++) { 16959191Skris nid = ext_nids[i]; 17059191Skris if(nid == NID_undef) return 0; 17159191Skris else if (req_nid == nid) return 1; 17259191Skris } 17359191Skris} 17459191Skris 17559191Skrisint *X509_REQ_get_extension_nids(void) 17659191Skris{ 17759191Skris return ext_nids; 17859191Skris} 17959191Skris 18059191Skrisvoid X509_REQ_set_extension_nids(int *nids) 18159191Skris{ 18259191Skris ext_nids = nids; 18359191Skris} 18459191Skris 18559191SkrisSTACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) 186142425Snectar { 18759191Skris X509_ATTRIBUTE *attr; 18859191Skris ASN1_TYPE *ext = NULL; 189142425Snectar int idx, *pnid; 190160814Ssimon const unsigned char *p; 191142425Snectar 192142425Snectar if ((req == NULL) || (req->req_info == NULL) || !ext_nids) 19359191Skris return(NULL); 194142425Snectar for (pnid = ext_nids; *pnid != NID_undef; pnid++) 195142425Snectar { 196142425Snectar idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); 197142425Snectar if (idx == -1) 198142425Snectar continue; 199142425Snectar attr = X509_REQ_get_attr(req, idx); 200142425Snectar if(attr->single) ext = attr->value.single; 201142425Snectar else if(sk_ASN1_TYPE_num(attr->value.set)) 202142425Snectar ext = sk_ASN1_TYPE_value(attr->value.set, 0); 203142425Snectar break; 20459191Skris } 205142425Snectar if(!ext || (ext->type != V_ASN1_SEQUENCE)) 206142425Snectar return NULL; 20759191Skris p = ext->value.sequence->data; 20859191Skris return d2i_ASN1_SET_OF_X509_EXTENSION(NULL, &p, 20959191Skris ext->value.sequence->length, 21059191Skris d2i_X509_EXTENSION, X509_EXTENSION_free, 21159191Skris V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL); 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 unsigned char *p = NULL, *q; 22259191Skris long len; 22359191Skris ASN1_TYPE *at = NULL; 22459191Skris X509_ATTRIBUTE *attr = NULL; 22559191Skris if(!(at = ASN1_TYPE_new()) || 22659191Skris !(at->value.sequence = ASN1_STRING_new())) goto err; 22759191Skris 22859191Skris at->type = V_ASN1_SEQUENCE; 22959191Skris /* Generate encoding of extensions */ 23059191Skris len = i2d_ASN1_SET_OF_X509_EXTENSION(exts, NULL, i2d_X509_EXTENSION, 23159191Skris V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE); 23268651Skris if(!(p = OPENSSL_malloc(len))) goto err; 23359191Skris q = p; 23459191Skris i2d_ASN1_SET_OF_X509_EXTENSION(exts, &q, i2d_X509_EXTENSION, 23559191Skris V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE); 23659191Skris at->value.sequence->data = p; 23759191Skris p = NULL; 23859191Skris at->value.sequence->length = len; 23959191Skris if(!(attr = X509_ATTRIBUTE_new())) goto err; 24059191Skris if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err; 24159191Skris if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err; 24259191Skris at = NULL; 243109998Smarkm attr->single = 0; 24459191Skris attr->object = OBJ_nid2obj(nid); 245167612Ssimon if (!req->req_info->attributes) 246167612Ssimon { 247167612Ssimon if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null())) 248167612Ssimon goto err; 249167612Ssimon } 25059191Skris if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err; 25159191Skris return 1; 25259191Skris err: 25368651Skris if(p) OPENSSL_free(p); 25459191Skris X509_ATTRIBUTE_free(attr); 25559191Skris ASN1_TYPE_free(at); 25659191Skris return 0; 25759191Skris} 25859191Skris/* This is the normal usage: use the "official" OID */ 25959191Skrisint X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) 26059191Skris{ 26159191Skris return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); 26259191Skris} 26359191Skris 26459191Skris/* Request attribute functions */ 26559191Skris 26659191Skrisint X509_REQ_get_attr_count(const X509_REQ *req) 26759191Skris{ 26859191Skris return X509at_get_attr_count(req->req_info->attributes); 26959191Skris} 27059191Skris 27159191Skrisint X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, 27259191Skris int lastpos) 27359191Skris{ 27459191Skris 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, 27859191Skris int lastpos) 27959191Skris{ 28059191Skris 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{ 28559191Skris return X509at_get_attr(req->req_info->attributes, loc); 28659191Skris} 28759191Skris 28859191SkrisX509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) 28959191Skris{ 29059191Skris return X509at_delete_attr(req->req_info->attributes, loc); 29159191Skris} 29259191Skris 29359191Skrisint X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) 29459191Skris{ 29559191Skris if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1; 29659191Skris return 0; 29759191Skris} 29859191Skris 29959191Skrisint X509_REQ_add1_attr_by_OBJ(X509_REQ *req, 300109998Smarkm const ASN1_OBJECT *obj, int type, 301109998Smarkm const unsigned char *bytes, int len) 30259191Skris{ 30359191Skris if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj, 30459191Skris type, bytes, len)) return 1; 30559191Skris return 0; 30659191Skris} 30759191Skris 30859191Skrisint X509_REQ_add1_attr_by_NID(X509_REQ *req, 30959191Skris int nid, int type, 310109998Smarkm const unsigned char *bytes, int len) 31159191Skris{ 31259191Skris if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid, 31359191Skris type, bytes, len)) return 1; 31459191Skris return 0; 31559191Skris} 31659191Skris 31759191Skrisint X509_REQ_add1_attr_by_txt(X509_REQ *req, 318109998Smarkm const char *attrname, int type, 319109998Smarkm const unsigned char *bytes, int len) 32059191Skris{ 32159191Skris if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname, 32259191Skris type, bytes, len)) return 1; 32359191Skris return 0; 32459191Skris} 325