p12_crpt.c
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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>
/* PKCS#12 PBE algorithms now in static table */
void PKCS12_PBE_add(void)
{
}
int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
ASN1_TYPE *param, const EVP_CIPHER *cipher,
const EVP_MD *md, int en_de)
{
PBEPARAM *pbe;
int saltlen, iter, ret;
unsigned char *salt;
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
int (*pkcs12_key_gen)(const char *pass, int passlen,
unsigned char *salt, int slen,
int id, int iter, int n,
unsigned char *out,
const EVP_MD *md_type);
pkcs12_key_gen = PKCS12_key_gen_utf8;
if (cipher == NULL)
return 0;
/* Extract useful info from parameter */
pbe = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(PBEPARAM), param);
if (pbe == NULL) {
PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_DECODE_ERROR);
return 0;
}
if (!pbe->iter)
iter = 1;
else
iter = ASN1_INTEGER_get(pbe->iter);
salt = pbe->salt->data;
saltlen = pbe->salt->length;
if (!(*pkcs12_key_gen)(pass, passlen, salt, saltlen, PKCS12_KEY_ID,
iter, EVP_CIPHER_key_length(cipher), key, md)) {
PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_KEY_GEN_ERROR);
PBEPARAM_free(pbe);
return 0;
}
if (!(*pkcs12_key_gen)(pass, passlen, salt, saltlen, PKCS12_IV_ID,
iter, EVP_CIPHER_iv_length(cipher), iv, md)) {
PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN, PKCS12_R_IV_GEN_ERROR);
PBEPARAM_free(pbe);
return 0;
}
PBEPARAM_free(pbe);
ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
return ret;
}