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/* p8_pkey.c */
/* 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 "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
/* Minor tweak to operation: zero private key data */
static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg)
{
/* Since the structure must still be valid use ASN1_OP_FREE_PRE */
if(operation == ASN1_OP_FREE_PRE) {
PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
if (key->pkey->value.octet_string)
OPENSSL_cleanse(key->pkey->value.octet_string->data,
key->pkey->value.octet_string->length);
}
return 1;
}
ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_ANY),
ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
} ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
int version,
int ptype, void *pval,
unsigned char *penc, int penclen)
{
unsigned char **ppenc = NULL;
if (version >= 0)
{
if (!ASN1_INTEGER_set(priv->version, version))
return 0;
}
if (penc)
{
int pmtype;
ASN1_OCTET_STRING *oct;
oct = ASN1_OCTET_STRING_new();
if (!oct)
return 0;
oct->data = penc;
ppenc = &oct->data;
oct->length = penclen;
if (priv->broken == PKCS8_NO_OCTET)
pmtype = V_ASN1_SEQUENCE;
else
pmtype = V_ASN1_OCTET_STRING;
ASN1_TYPE_set(priv->pkey, pmtype, oct);
}
if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
{
/* If call fails do not swallow 'enc' */
if (ppenc)
*ppenc = NULL;
return 0;
}
return 1;
}
int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg,
const unsigned char **pk, int *ppklen,
X509_ALGOR **pa,
PKCS8_PRIV_KEY_INFO *p8)
{
if (ppkalg)
*ppkalg = p8->pkeyalg->algorithm;
if(p8->pkey->type == V_ASN1_OCTET_STRING)
{
p8->broken = PKCS8_OK;
if (pk)
{
*pk = p8->pkey->value.octet_string->data;
*ppklen = p8->pkey->value.octet_string->length;
}
}
else if (p8->pkey->type == V_ASN1_SEQUENCE)
{
p8->broken = PKCS8_NO_OCTET;
if (pk)
{
*pk = p8->pkey->value.sequence->data;
*ppklen = p8->pkey->value.sequence->length;
}
}
else
return 0;
if (pa)
*pa = p8->pkeyalg;
return 1;
}