openssl/crypto/pkcs12/p12_p8e.c

/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
 * 2001.
 */
/* ====================================================================
 * Copyright (c) 2001 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 "internal/cryptlib.h"
#include <openssl/pkcs12.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;
    }

    if ((p8 = X509_SIG_new()) == NULL) {
        PKCS12err(PKCS12_F_PKCS8_SET0_PBE, ERR_R_MALLOC_FAILURE);
        ASN1_OCTET_STRING_free(enckey);
        return NULL;
    }
    X509_ALGOR_free(p8->algor);
    ASN1_OCTET_STRING_free(p8->digest);
    p8->algor = pbe;
    p8->digest = enckey;

    return p8;
}