pineapple/externals/libressl/crypto/asn1/p5_pbe.c

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2020-12-28 16:15:37 +01:00
/* $OpenBSD: p5_pbe.c,v 1.22 2017/01/29 17:49:22 beck Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999 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 <string.h>
#include <openssl/asn1t.h>
#include <openssl/err.h>
#include <openssl/x509.h>
/* PKCS#5 password based encryption structure */
static const ASN1_TEMPLATE PBEPARAM_seq_tt[] = {
{
.offset = offsetof(PBEPARAM, salt),
.field_name = "salt",
.item = &ASN1_OCTET_STRING_it,
},
{
.offset = offsetof(PBEPARAM, iter),
.field_name = "iter",
.item = &ASN1_INTEGER_it,
},
};
const ASN1_ITEM PBEPARAM_it = {
.itype = ASN1_ITYPE_SEQUENCE,
.utype = V_ASN1_SEQUENCE,
.templates = PBEPARAM_seq_tt,
.tcount = sizeof(PBEPARAM_seq_tt) / sizeof(ASN1_TEMPLATE),
.size = sizeof(PBEPARAM),
.sname = "PBEPARAM",
};
PBEPARAM *
d2i_PBEPARAM(PBEPARAM **a, const unsigned char **in, long len)
{
return (PBEPARAM *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
&PBEPARAM_it);
}
int
i2d_PBEPARAM(PBEPARAM *a, unsigned char **out)
{
return ASN1_item_i2d((ASN1_VALUE *)a, out, &PBEPARAM_it);
}
PBEPARAM *
PBEPARAM_new(void)
{
return (PBEPARAM *)ASN1_item_new(&PBEPARAM_it);
}
void
PBEPARAM_free(PBEPARAM *a)
{
ASN1_item_free((ASN1_VALUE *)a, &PBEPARAM_it);
}
/* Set an algorithm identifier for a PKCS#5 PBE algorithm */
int
PKCS5_pbe_set0_algor(X509_ALGOR *algor, int alg, int iter,
const unsigned char *salt, int saltlen)
{
PBEPARAM *pbe = NULL;
ASN1_STRING *pbe_str = NULL;
unsigned char *sstr;
pbe = PBEPARAM_new();
if (!pbe) {
ASN1error(ERR_R_MALLOC_FAILURE);
goto err;
}
if (iter <= 0)
iter = PKCS5_DEFAULT_ITER;
if (!ASN1_INTEGER_set(pbe->iter, iter)) {
ASN1error(ERR_R_MALLOC_FAILURE);
goto err;
}
if (!saltlen)
saltlen = PKCS5_SALT_LEN;
if (!ASN1_STRING_set(pbe->salt, NULL, saltlen)) {
ASN1error(ERR_R_MALLOC_FAILURE);
goto err;
}
sstr = ASN1_STRING_data(pbe->salt);
if (salt)
memcpy(sstr, salt, saltlen);
else
arc4random_buf(sstr, saltlen);
if (!ASN1_item_pack(pbe, &PBEPARAM_it, &pbe_str)) {
ASN1error(ERR_R_MALLOC_FAILURE);
goto err;
}
PBEPARAM_free(pbe);
pbe = NULL;
if (X509_ALGOR_set0(algor, OBJ_nid2obj(alg), V_ASN1_SEQUENCE, pbe_str))
return 1;
err:
if (pbe != NULL)
PBEPARAM_free(pbe);
ASN1_STRING_free(pbe_str);
return 0;
}
/* Return an algorithm identifier for a PKCS#5 PBE algorithm */
X509_ALGOR *
PKCS5_pbe_set(int alg, int iter, const unsigned char *salt, int saltlen)
{
X509_ALGOR *ret;
ret = X509_ALGOR_new();
if (!ret) {
ASN1error(ERR_R_MALLOC_FAILURE);
return NULL;
}
if (PKCS5_pbe_set0_algor(ret, alg, iter, salt, saltlen))
return ret;
X509_ALGOR_free(ret);
return NULL;
}