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/* $OpenBSD: evp_pkey.c,v 1.25 2022/11/26 16:08:52 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include "asn1_local.h"
#include "evp_local.h"
/* Extract a private key from a PKCS8 structure */
EVP_PKEY *
EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8)
{
EVP_PKEY *pkey = NULL;
const ASN1_OBJECT *algoid;
char obj_tmp[80];
if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
return NULL;
if (!(pkey = EVP_PKEY_new())) {
EVPerror(ERR_R_MALLOC_FAILURE);
return NULL;
}
if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
EVPerror(EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
ERR_asprintf_error_data("TYPE=%s", obj_tmp);
goto error;
}
if (pkey->ameth->priv_decode) {
if (!pkey->ameth->priv_decode(pkey, p8)) {
EVPerror(EVP_R_PRIVATE_KEY_DECODE_ERROR);
goto error;
}
} else {
EVPerror(EVP_R_METHOD_NOT_SUPPORTED);
goto error;
}
return pkey;
error:
EVP_PKEY_free(pkey);
return NULL;
}
/* Turn a private key into a PKCS8 structure */
PKCS8_PRIV_KEY_INFO *
EVP_PKEY2PKCS8(EVP_PKEY *pkey)
{
PKCS8_PRIV_KEY_INFO *p8;
if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
EVPerror(ERR_R_MALLOC_FAILURE);
return NULL;
}
if (pkey->ameth) {
if (pkey->ameth->priv_encode) {
if (!pkey->ameth->priv_encode(p8, pkey)) {
EVPerror(EVP_R_PRIVATE_KEY_ENCODE_ERROR);
goto error;
}
} else {
EVPerror(EVP_R_METHOD_NOT_SUPPORTED);
goto error;
}
} else {
EVPerror(EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
goto error;
}
return p8;
error:
PKCS8_PRIV_KEY_INFO_free(p8);
return NULL;
}
/* EVP_PKEY attribute functions */
int
EVP_PKEY_get_attr_count(const EVP_PKEY *key)
{
return X509at_get_attr_count(key->attributes);
}
int
EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
{
return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
}
int
EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, const ASN1_OBJECT *obj,
int lastpos)
{
return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
}
X509_ATTRIBUTE *
EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
{
return X509at_get_attr(key->attributes, loc);
}
X509_ATTRIBUTE *
EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
{
return X509at_delete_attr(key->attributes, loc);
}
int
EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
{
if (X509at_add1_attr(&key->attributes, attr))
return 1;
return 0;
}
int
EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key, const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
return 1;
return 0;
}
int
EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key, int nid, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
return 1;
return 0;
}
int
EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key, const char *attrname, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_txt(&key->attributes, attrname, type,
bytes, len))
return 1;
return 0;
}
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