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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/pkcs12.h>
#include "p12_lcl.h"
/* Pack an object into an OCTET STRING and turn into a safebag */
PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it,
int nid1, int nid2)
{
PKCS12_BAGS *bag;
PKCS12_SAFEBAG *safebag;
if ((bag = PKCS12_BAGS_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
return NULL;
}
bag->type = OBJ_nid2obj(nid1);
if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
goto err;
}
if ((safebag = PKCS12_SAFEBAG_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
goto err;
}
safebag->value.bag = bag;
safebag->type = OBJ_nid2obj(nid2);
return safebag;
err:
PKCS12_BAGS_free(bag);
return NULL;
}
/* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
{
PKCS7 *p7;
if ((p7 = PKCS7_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
return NULL;
}
p7->type = OBJ_nid2obj(NID_pkcs7_data);
if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);
goto err;
}
return p7;
err:
PKCS7_free(p7);
return NULL;
}
/* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
{
if (!PKCS7_type_is_data(p7)) {
PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,
PKCS12_R_CONTENT_TYPE_NOT_DATA);
return NULL;
}
return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
}
/* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
unsigned char *salt, int saltlen, int iter,
STACK_OF(PKCS12_SAFEBAG) *bags)
{
PKCS7 *p7;
X509_ALGOR *pbe;
const EVP_CIPHER *pbe_ciph;
if ((p7 = PKCS7_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
goto err;
}
pbe_ciph = EVP_get_cipherbynid(pbe_nid);
if (pbe_ciph)
pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
else
pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
if (!pbe) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
goto err;
}
X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
p7->d.encrypted->enc_data->algorithm = pbe;
ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
if (!(p7->d.encrypted->enc_data->enc_data =
PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass,
passlen, bags, 1))) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);
goto err;
}
return p7;
err:
PKCS7_free(p7);
return NULL;
}
STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass,
int passlen)
{
if (!PKCS7_type_is_encrypted(p7))
return NULL;
return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
pass, passlen,
p7->d.encrypted->enc_data->enc_data, 1);
}
PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(const PKCS12_SAFEBAG *bag,
const char *pass, int passlen)
{
return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
}
int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
{
if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
&p12->authsafes->d.data))
return 1;
return 0;
}
STACK_OF(PKCS7) *PKCS12_unpack_authsafes(const PKCS12 *p12)
{
if (!PKCS7_type_is_data(p12->authsafes)) {
PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,
PKCS12_R_CONTENT_TYPE_NOT_DATA);
return NULL;
}
return ASN1_item_unpack(p12->authsafes->d.data,
ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
}
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