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155 lines
5.0 KiB
155 lines
5.0 KiB
/* p8_pkey.c */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
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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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/asn1t.h>
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#include <openssl/x509.h>
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/* Minor tweak to operation: zero private key data */
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static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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void *exarg)
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{
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/* Since the structure must still be valid use ASN1_OP_FREE_PRE */
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if(operation == ASN1_OP_FREE_PRE) {
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PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
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if (key->pkey->value.octet_string)
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OPENSSL_cleanse(key->pkey->value.octet_string->data,
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key->pkey->value.octet_string->length);
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}
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return 1;
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}
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ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
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ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
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ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
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ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_ANY),
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ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
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} ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
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int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
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int version,
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int ptype, void *pval,
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unsigned char *penc, int penclen)
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{
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unsigned char **ppenc = NULL;
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if (version >= 0)
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{
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if (!ASN1_INTEGER_set(priv->version, version))
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return 0;
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}
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if (penc)
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{
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int pmtype;
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ASN1_OCTET_STRING *oct;
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oct = ASN1_OCTET_STRING_new();
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if (!oct)
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return 0;
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oct->data = penc;
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ppenc = &oct->data;
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oct->length = penclen;
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if (priv->broken == PKCS8_NO_OCTET)
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pmtype = V_ASN1_SEQUENCE;
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else
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pmtype = V_ASN1_OCTET_STRING;
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ASN1_TYPE_set(priv->pkey, pmtype, oct);
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}
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if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
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{
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/* If call fails do not swallow 'enc' */
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if (ppenc)
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*ppenc = NULL;
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return 0;
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}
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return 1;
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}
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int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg,
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const unsigned char **pk, int *ppklen,
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X509_ALGOR **pa,
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PKCS8_PRIV_KEY_INFO *p8)
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{
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if (ppkalg)
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*ppkalg = p8->pkeyalg->algorithm;
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if(p8->pkey->type == V_ASN1_OCTET_STRING)
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{
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p8->broken = PKCS8_OK;
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if (pk)
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{
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*pk = p8->pkey->value.octet_string->data;
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*ppklen = p8->pkey->value.octet_string->length;
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}
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}
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else if (p8->pkey->type == V_ASN1_SEQUENCE)
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{
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p8->broken = PKCS8_NO_OCTET;
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if (pk)
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{
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*pk = p8->pkey->value.sequence->data;
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*ppklen = p8->pkey->value.sequence->length;
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}
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}
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else
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return 0;
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if (pa)
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*pa = p8->pkeyalg;
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return 1;
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}
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