/*

 * Copyright 2001-2016 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 "crypto/x509.h"

X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher,

                        const char *pass, int passlen,

                        unsigned char *salt, int saltlen, int iter,

                        PKCS8_PRIV_KEY_INFO *p8inf)

{

    X509_SIG *p8 = NULL;

    X509_ALGOR *pbe;

    if (pbe_nid == -1)

        pbe = PKCS5_pbe2_set(cipher, iter, salt, saltlen);

    else if (EVP_PBE_find(EVP_PBE_TYPE_PRF, pbe_nid, NULL, NULL, 0))

        pbe = PKCS5_pbe2_set_iv(cipher, iter, salt, saltlen, NULL, pbe_nid);

    else {

        ERR_clear_error();

        pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);

    }

    if (!pbe) {

        PKCS12err(PKCS12_F_PKCS8_ENCRYPT, ERR_R_ASN1_LIB);

        return NULL;

    }

    p8 = PKCS8_set0_pbe(pass, passlen, p8inf, pbe);

    if (p8 == NULL) {

        X509_ALGOR_free(pbe);

        return NULL;

    }

    return p8;

}

X509_SIG *PKCS8_set0_pbe(const char *pass, int passlen,

                         PKCS8_PRIV_KEY_INFO *p8inf, X509_ALGOR *pbe)

{

    X509_SIG *p8;

    ASN1_OCTET_STRING *enckey;

    enckey =

        PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS8_PRIV_KEY_INFO),

                                pass, passlen, p8inf, 1);

    if (!enckey) {

        PKCS12err(PKCS12_F_PKCS8_SET0_PBE, PKCS12_R_ENCRYPT_ERROR);

        return NULL;

    }

    p8 = OPENSSL_zalloc(sizeof(*p8));

    if (p8 == NULL) {

        PKCS12err(PKCS12_F_PKCS8_SET0_PBE, ERR_R_MALLOC_FAILURE);

        ASN1_OCTET_STRING_free(enckey);

        return NULL;

    }

    p8->algor = pbe;

    p8->digest = enckey;

    return p8;

}