329 lines
10 KiB
C
329 lines
10 KiB
C
/* crypto/x509/x509_req.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/bn.h>
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#include <openssl/evp.h>
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#include <openssl/asn1.h>
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#include <openssl/asn1t.h>
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#include <openssl/x509.h>
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#include <openssl/objects.h>
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#include <openssl/buffer.h>
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#include <openssl/pem.h>
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X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
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{
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X509_REQ *ret;
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X509_REQ_INFO *ri;
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int i;
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EVP_PKEY *pktmp;
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ret = X509_REQ_new();
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if (ret == NULL) {
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X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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ri = ret->req_info;
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ri->version->length = 1;
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ri->version->data = (unsigned char *)OPENSSL_malloc(1);
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if (ri->version->data == NULL)
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goto err;
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ri->version->data[0] = 0; /* version == 0 */
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if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
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goto err;
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pktmp = X509_get_pubkey(x);
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if (pktmp == NULL)
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goto err;
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i = X509_REQ_set_pubkey(ret, pktmp);
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EVP_PKEY_free(pktmp);
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if (!i)
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goto err;
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if (pkey != NULL) {
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if (!X509_REQ_sign(ret, pkey, md))
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goto err;
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}
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return (ret);
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err:
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X509_REQ_free(ret);
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return (NULL);
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}
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EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
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{
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if ((req == NULL) || (req->req_info == NULL))
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return (NULL);
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return (X509_PUBKEY_get(req->req_info->pubkey));
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}
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int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
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{
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EVP_PKEY *xk = NULL;
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int ok = 0;
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xk = X509_REQ_get_pubkey(x);
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switch (EVP_PKEY_cmp(xk, k)) {
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case 1:
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ok = 1;
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break;
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case 0:
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
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X509_R_KEY_VALUES_MISMATCH);
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break;
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case -1:
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH);
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break;
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case -2:
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#ifndef OPENSSL_NO_EC
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if (k->type == EVP_PKEY_EC) {
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
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break;
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}
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#endif
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#ifndef OPENSSL_NO_DH
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if (k->type == EVP_PKEY_DH) {
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/* No idea */
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
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X509_R_CANT_CHECK_DH_KEY);
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break;
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}
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#endif
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE);
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}
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EVP_PKEY_free(xk);
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return (ok);
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}
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/*
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* It seems several organisations had the same idea of including a list of
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* extensions in a certificate request. There are at least two OIDs that are
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* used and there may be more: so the list is configurable.
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*/
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static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef };
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static int *ext_nids = ext_nid_list;
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int X509_REQ_extension_nid(int req_nid)
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{
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int i, nid;
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for (i = 0;; i++) {
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nid = ext_nids[i];
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if (nid == NID_undef)
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return 0;
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else if (req_nid == nid)
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return 1;
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}
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}
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int *X509_REQ_get_extension_nids(void)
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{
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return ext_nids;
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}
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void X509_REQ_set_extension_nids(int *nids)
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{
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ext_nids = nids;
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}
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STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
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{
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X509_ATTRIBUTE *attr;
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ASN1_TYPE *ext = NULL;
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int idx, *pnid;
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const unsigned char *p;
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if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
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return (NULL);
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for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
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idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
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if (idx == -1)
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continue;
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attr = X509_REQ_get_attr(req, idx);
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if (attr->single)
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ext = attr->value.single;
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else if (sk_ASN1_TYPE_num(attr->value.set))
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ext = sk_ASN1_TYPE_value(attr->value.set, 0);
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break;
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}
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if (!ext || (ext->type != V_ASN1_SEQUENCE))
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return NULL;
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p = ext->value.sequence->data;
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return (STACK_OF(X509_EXTENSION) *)
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ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
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ASN1_ITEM_rptr(X509_EXTENSIONS));
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}
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/*
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* Add a STACK_OF extensions to a certificate request: allow alternative OIDs
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* in case we want to create a non standard one.
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*/
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int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
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int nid)
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{
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ASN1_TYPE *at = NULL;
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X509_ATTRIBUTE *attr = NULL;
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if (!(at = ASN1_TYPE_new()) || !(at->value.sequence = ASN1_STRING_new()))
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goto err;
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at->type = V_ASN1_SEQUENCE;
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/* Generate encoding of extensions */
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at->value.sequence->length =
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ASN1_item_i2d((ASN1_VALUE *)exts,
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&at->value.sequence->data,
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ASN1_ITEM_rptr(X509_EXTENSIONS));
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if (!(attr = X509_ATTRIBUTE_new()))
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goto err;
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if (!(attr->value.set = sk_ASN1_TYPE_new_null()))
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goto err;
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if (!sk_ASN1_TYPE_push(attr->value.set, at))
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goto err;
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at = NULL;
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attr->single = 0;
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attr->object = OBJ_nid2obj(nid);
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if (!req->req_info->attributes) {
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if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null()))
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goto err;
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}
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if (!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr))
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goto err;
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return 1;
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err:
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X509_ATTRIBUTE_free(attr);
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ASN1_TYPE_free(at);
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return 0;
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}
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/* This is the normal usage: use the "official" OID */
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int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
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{
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return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
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}
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/* Request attribute functions */
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int X509_REQ_get_attr_count(const X509_REQ *req)
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{
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return X509at_get_attr_count(req->req_info->attributes);
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}
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int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
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{
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return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
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}
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int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
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int lastpos)
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{
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return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
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}
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X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
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{
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return X509at_get_attr(req->req_info->attributes, loc);
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}
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X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
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{
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return X509at_delete_attr(req->req_info->attributes, loc);
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}
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int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
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{
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if (X509at_add1_attr(&req->req_info->attributes, attr))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
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const ASN1_OBJECT *obj, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
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type, bytes, len))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_NID(X509_REQ *req,
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int nid, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
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type, bytes, len))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_txt(X509_REQ *req,
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const char *attrname, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
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type, bytes, len))
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return 1;
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return 0;
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}
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