ref: bfe9da47cfa2f51ebef78c59332b5ba2deba306d
dir: /third_party/boringssl/src/crypto/x509/x509_req.c/
/* 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 <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include "internal.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) {
OPENSSL_PUT_ERROR(X509, 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);
if (pktmp == NULL)
goto err;
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);
}
long X509_REQ_get_version(const X509_REQ *req)
{
return ASN1_INTEGER_get(req->req_info->version);
}
X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req)
{
return req->req_info->subject;
}
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:
OPENSSL_PUT_ERROR(X509, X509_R_KEY_VALUES_MISMATCH);
break;
case -1:
OPENSSL_PUT_ERROR(X509, X509_R_KEY_TYPE_MISMATCH);
break;
case -2:
if (k->type == EVP_PKEY_EC) {
OPENSSL_PUT_ERROR(X509, ERR_R_EC_LIB);
break;
}
if (k->type == EVP_PKEY_DH) {
/* No idea */
OPENSSL_PUT_ERROR(X509, X509_R_CANT_CHECK_DH_KEY);
break;
}
OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_KEY_TYPE);
}
EVP_PKEY_free(xk);
return (ok);
}
int X509_REQ_extension_nid(int req_nid)
{
return req_nid == NID_ext_req || req_nid == NID_ms_ext_req;
}
STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
{
if (req == NULL || req->req_info == NULL) {
return NULL;
}
int idx = X509_REQ_get_attr_by_NID(req, NID_ext_req, -1);
if (idx == -1) {
idx = X509_REQ_get_attr_by_NID(req, NID_ms_ext_req, -1);
}
if (idx == -1) {
return NULL;
}
X509_ATTRIBUTE *attr = X509_REQ_get_attr(req, idx);
ASN1_TYPE *ext = X509_ATTRIBUTE_get0_type(attr, 0);
if (!ext || ext->type != V_ASN1_SEQUENCE) {
return NULL;
}
const unsigned char *p = ext->value.sequence->data;
return (STACK_OF(X509_EXTENSION) *)
ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
ASN1_ITEM_rptr(X509_EXTENSIONS));
}
/*
* 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,
const STACK_OF(X509_EXTENSION) *exts, int nid)
{
/* Generate encoding of extensions */
unsigned char *ext = NULL;
int ext_len = ASN1_item_i2d((ASN1_VALUE *)exts, &ext,
ASN1_ITEM_rptr(X509_EXTENSIONS));
if (ext_len <= 0) {
return 0;
}
int ret = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext,
ext_len);
OPENSSL_free(ext);
return ret;
}
/* This is the normal usage: use the "official" OID */
int X509_REQ_add_extensions(X509_REQ *req,
const 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, const 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 attrtype,
const unsigned char *data, int len)
{
if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
attrtype, data, len))
return 1;
return 0;
}
int X509_REQ_add1_attr_by_NID(X509_REQ *req,
int nid, int attrtype,
const unsigned char *data, int len)
{
if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
attrtype, data, len))
return 1;
return 0;
}
int X509_REQ_add1_attr_by_txt(X509_REQ *req,
const char *attrname, int attrtype,
const unsigned char *data, int len)
{
if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
attrtype, data, len))
return 1;
return 0;
}
void X509_REQ_get0_signature(const X509_REQ *req, const ASN1_BIT_STRING **psig,
const X509_ALGOR **palg)
{
if (psig != NULL)
*psig = req->signature;
if (palg != NULL)
*palg = req->sig_alg;
}
int X509_REQ_get_signature_nid(const X509_REQ *req)
{
return OBJ_obj2nid(req->sig_alg->algorithm);
}
int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp)
{
req->req_info->enc.modified = 1;
return i2d_X509_REQ_INFO(req->req_info, pp);
}