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pineappleEA
2020-12-28 15:15:37 +00:00
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186
externals/libressl/crypto/asn1/p8_pkey.c vendored Executable file
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/* $OpenBSD: p8_pkey.c,v 1.19 2018/08/24 20:17:33 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 <string.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 != NULL)
explicit_bzero(key->pkey->data, key->pkey->length);
}
return 1;
}
static const ASN1_AUX PKCS8_PRIV_KEY_INFO_aux = {
.asn1_cb = pkey_cb,
};
static const ASN1_TEMPLATE PKCS8_PRIV_KEY_INFO_seq_tt[] = {
{
.offset = offsetof(PKCS8_PRIV_KEY_INFO, version),
.field_name = "version",
.item = &ASN1_INTEGER_it,
},
{
.offset = offsetof(PKCS8_PRIV_KEY_INFO, pkeyalg),
.field_name = "pkeyalg",
.item = &X509_ALGOR_it,
},
{
.offset = offsetof(PKCS8_PRIV_KEY_INFO, pkey),
.field_name = "pkey",
.item = &ASN1_OCTET_STRING_it,
},
{
.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL,
.offset = offsetof(PKCS8_PRIV_KEY_INFO, attributes),
.field_name = "attributes",
.item = &X509_ATTRIBUTE_it,
},
};
const ASN1_ITEM PKCS8_PRIV_KEY_INFO_it = {
.itype = ASN1_ITYPE_SEQUENCE,
.utype = V_ASN1_SEQUENCE,
.templates = PKCS8_PRIV_KEY_INFO_seq_tt,
.tcount = sizeof(PKCS8_PRIV_KEY_INFO_seq_tt) / sizeof(ASN1_TEMPLATE),
.funcs = &PKCS8_PRIV_KEY_INFO_aux,
.size = sizeof(PKCS8_PRIV_KEY_INFO),
.sname = "PKCS8_PRIV_KEY_INFO",
};
PKCS8_PRIV_KEY_INFO *
d2i_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO **a, const unsigned char **in, long len)
{
return (PKCS8_PRIV_KEY_INFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
&PKCS8_PRIV_KEY_INFO_it);
}
int
i2d_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO *a, unsigned char **out)
{
return ASN1_item_i2d((ASN1_VALUE *)a, out, &PKCS8_PRIV_KEY_INFO_it);
}
PKCS8_PRIV_KEY_INFO *
PKCS8_PRIV_KEY_INFO_new(void)
{
return (PKCS8_PRIV_KEY_INFO *)ASN1_item_new(&PKCS8_PRIV_KEY_INFO_it);
}
void
PKCS8_PRIV_KEY_INFO_free(PKCS8_PRIV_KEY_INFO *a)
{
ASN1_item_free((ASN1_VALUE *)a, &PKCS8_PRIV_KEY_INFO_it);
}
int
PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, int version,
int ptype, void *pval, unsigned char *penc, int penclen)
{
if (version >= 0) {
if (!ASN1_INTEGER_set(priv->version, version))
return 0;
}
if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
return 0;
if (penc != NULL)
ASN1_STRING_set0(priv->pkey, penc, penclen);
return 1;
}
int
PKCS8_pkey_get0(const ASN1_OBJECT **ppkalg, const unsigned char **pk,
int *ppklen, const X509_ALGOR **pa, const PKCS8_PRIV_KEY_INFO *p8)
{
if (ppkalg != NULL)
*ppkalg = p8->pkeyalg->algorithm;
if (pk != NULL) {
*pk = ASN1_STRING_data(p8->pkey);
*ppklen = ASN1_STRING_length(p8->pkey);
}
if (pa != NULL)
*pa = p8->pkeyalg;
return 1;
}
const STACK_OF(X509_ATTRIBUTE) *
PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8)
{
return p8->attributes;
}
int
PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_NID(&p8->attributes, nid, type, bytes,
len) != NULL)
return 1;
return 0;
}