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* \file pkcs5.h
* \brief PKCS#5 functions
* \author Mathias Olsson <>
* Copyright (C) 2006-2013, ARM Limited, All Rights Reserved
* This file is part of mbed TLS (
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#include <string.h>
#include "asn1.h"
#include "md.h"
#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
#include <basetsd.h>
typedef UINT32 uint32_t;
#include <inttypes.h>
#define POLARSSL_ERR_PKCS5_BAD_INPUT_DATA -0x3f80 /**< Bad input parameters to function. */
#define POLARSSL_ERR_PKCS5_INVALID_FORMAT -0x3f00 /**< Unexpected ASN.1 data. */
#define POLARSSL_ERR_PKCS5_FEATURE_UNAVAILABLE -0x3e80 /**< Requested encryption or digest alg not available. */
#define POLARSSL_ERR_PKCS5_PASSWORD_MISMATCH -0x3e00 /**< Given private key password does not allow for correct decryption. */
#define PKCS5_DECRYPT 0
#define PKCS5_ENCRYPT 1
#ifdef __cplusplus
extern "C" {
* \brief PKCS#5 PBES2 function
* \param pbe_params the ASN.1 algorithm parameters
* \param mode either PKCS5_DECRYPT or PKCS5_ENCRYPT
* \param pwd password to use when generating key
* \param pwdlen length of password
* \param data data to process
* \param datalen length of data
* \param output output buffer
* \returns 0 on success, or a POLARSSL_ERR_xxx code if verification fails.
int pkcs5_pbes2( asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t datalen,
unsigned char *output );
* \brief PKCS#5 PBKDF2 using HMAC
* \param ctx Generic HMAC context
* \param password Password to use when generating key
* \param plen Length of password
* \param salt Salt to use when generating key
* \param slen Length of salt
* \param iteration_count Iteration count
* \param key_length Length of generated key
* \param output Generated key. Must be at least as big as key_length
* \returns 0 on success, or a POLARSSL_ERR_xxx code if verification fails.
int pkcs5_pbkdf2_hmac( md_context_t *ctx, const unsigned char *password,
size_t plen, const unsigned char *salt, size_t slen,
unsigned int iteration_count,
uint32_t key_length, unsigned char *output );
* \brief Checkup routine
* \return 0 if successful, or 1 if the test failed
int pkcs5_self_test( int verbose );
#ifdef __cplusplus
#endif /* pkcs5.h */