x509_req.c
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- /* crypto/x509/x509_req.c */
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #include <stdio.h>
- #include "cryptlib.h"
- #include <openssl/bn.h>
- #include <openssl/evp.h>
- #include <openssl/asn1.h>
- #include <openssl/x509.h>
- #include <openssl/objects.h>
- #include <openssl/buffer.h>
- #include <openssl/pem.h>
- X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
- {
- X509_REQ *ret;
- X509_REQ_INFO *ri;
- int i;
- EVP_PKEY *pktmp;
- ret=X509_REQ_new();
- if (ret == NULL)
- {
- X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- ri=ret->req_info;
- ri->version->length=1;
- ri->version->data=(unsigned char *)OPENSSL_malloc(1);
- if (ri->version->data == NULL) goto err;
- ri->version->data[0]=0; /* version == 0 */
- if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))
- goto err;
- pktmp = X509_get_pubkey(x);
- i=X509_REQ_set_pubkey(ret,pktmp);
- EVP_PKEY_free(pktmp);
- if (!i) goto err;
- if (pkey != NULL)
- {
- if (!X509_REQ_sign(ret,pkey,md))
- goto err;
- }
- return(ret);
- err:
- X509_REQ_free(ret);
- return(NULL);
- }
- EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
- {
- if ((req == NULL) || (req->req_info == NULL))
- return(NULL);
- return(X509_PUBKEY_get(req->req_info->pubkey));
- }
- int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
- {
- EVP_PKEY *xk=NULL;
- int ok=0;
- xk=X509_REQ_get_pubkey(x);
- switch (EVP_PKEY_cmp(xk, k))
- {
- case 1:
- ok=1;
- break;
- case 0:
- X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
- break;
- case -1:
- X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
- break;
- case -2:
- #ifndef OPENSSL_NO_EC
- if (k->type == EVP_PKEY_EC)
- {
- X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
- break;
- }
- #endif
- #ifndef OPENSSL_NO_DH
- if (k->type == EVP_PKEY_DH)
- {
- /* No idea */
- X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
- break;
- }
- #endif
- X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
- }
- EVP_PKEY_free(xk);
- return(ok);
- }
- /* It seems several organisations had the same idea of including a list of
- * extensions in a certificate request. There are at least two OIDs that are
- * used and there may be more: so the list is configurable.
- */
- static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef};
- static int *ext_nids = ext_nid_list;
- int X509_REQ_extension_nid(int req_nid)
- {
- int i, nid;
- for(i = 0; ; i++) {
- nid = ext_nids[i];
- if(nid == NID_undef) return 0;
- else if (req_nid == nid) return 1;
- }
- }
- int *X509_REQ_get_extension_nids(void)
- {
- return ext_nids;
- }
-
- void X509_REQ_set_extension_nids(int *nids)
- {
- ext_nids = nids;
- }
- STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
- {
- X509_ATTRIBUTE *attr;
- ASN1_TYPE *ext = NULL;
- int idx, *pnid;
- const unsigned char *p;
- if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
- return(NULL);
- for (pnid = ext_nids; *pnid != NID_undef; pnid++)
- {
- idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
- if (idx == -1)
- continue;
- attr = X509_REQ_get_attr(req, idx);
- if(attr->single) ext = attr->value.single;
- else if(sk_ASN1_TYPE_num(attr->value.set))
- ext = sk_ASN1_TYPE_value(attr->value.set, 0);
- break;
- }
- if(!ext || (ext->type != V_ASN1_SEQUENCE))
- return NULL;
- p = ext->value.sequence->data;
- return d2i_ASN1_SET_OF_X509_EXTENSION(NULL, &p,
- ext->value.sequence->length,
- d2i_X509_EXTENSION, X509_EXTENSION_free,
- V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
- }
- /* Add a STACK_OF extensions to a certificate request: allow alternative OIDs
- * in case we want to create a non standard one.
- */
- int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
- int nid)
- {
- unsigned char *p = NULL, *q;
- long len;
- ASN1_TYPE *at = NULL;
- X509_ATTRIBUTE *attr = NULL;
- if(!(at = ASN1_TYPE_new()) ||
- !(at->value.sequence = ASN1_STRING_new())) goto err;
- at->type = V_ASN1_SEQUENCE;
- /* Generate encoding of extensions */
- len = i2d_ASN1_SET_OF_X509_EXTENSION(exts, NULL, i2d_X509_EXTENSION,
- V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);
- if(!(p = OPENSSL_malloc(len))) goto err;
- q = p;
- i2d_ASN1_SET_OF_X509_EXTENSION(exts, &q, i2d_X509_EXTENSION,
- V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);
- at->value.sequence->data = p;
- p = NULL;
- at->value.sequence->length = len;
- if(!(attr = X509_ATTRIBUTE_new())) goto err;
- if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
- if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err;
- at = NULL;
- attr->single = 0;
- attr->object = OBJ_nid2obj(nid);
- if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err;
- return 1;
- err:
- if(p) OPENSSL_free(p);
- X509_ATTRIBUTE_free(attr);
- ASN1_TYPE_free(at);
- return 0;
- }
- /* This is the normal usage: use the "official" OID */
- int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
- {
- return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
- }
- /* Request attribute functions */
- int X509_REQ_get_attr_count(const X509_REQ *req)
- {
- return X509at_get_attr_count(req->req_info->attributes);
- }
- int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid,
- int lastpos)
- {
- return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
- }
- int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
- int lastpos)
- {
- return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
- }
- X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
- {
- return X509at_get_attr(req->req_info->attributes, loc);
- }
- X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
- {
- return X509at_delete_attr(req->req_info->attributes, loc);
- }
- int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
- {
- if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1;
- return 0;
- }
- int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
- const ASN1_OBJECT *obj, int type,
- const unsigned char *bytes, int len)
- {
- if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
- type, bytes, len)) return 1;
- return 0;
- }
- int X509_REQ_add1_attr_by_NID(X509_REQ *req,
- int nid, int type,
- const unsigned char *bytes, int len)
- {
- if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
- type, bytes, len)) return 1;
- return 0;
- }
- int X509_REQ_add1_attr_by_txt(X509_REQ *req,
- const char *attrname, int type,
- const unsigned char *bytes, int len)
- {
- if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
- type, bytes, len)) return 1;
- return 0;
- }