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/*
* Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include "internal/x509_int.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)
OPENSSL_cleanse(key->pkey->data, key->pkey->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_OCTET_STRING),
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)
{
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)
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)
*ppkalg = p8->pkeyalg->algorithm;
if (pk) {
*pk = ASN1_STRING_get0_data(p8->pkey);
*ppklen = ASN1_STRING_length(p8->pkey);
}
if (pa)
*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;
}