/* pwdbased.h
 *
 * Copyright (C) 2006-2017 wolfSSL Inc.
 *
 * This file is part of wolfSSL.
 *
 * wolfSSL 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.
 *
 * wolfSSL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * 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 02110-1335, USA
 */


#ifndef WOLF_CRYPT_PWDBASED_H
# define WOLF_CRYPT_PWDBASED_H

# include "types.h"

# ifndef NO_PWDBASED

#  ifndef NO_MD5
#   include "md5.h" /* for hash type */
#  endif

#  include "sha.h"

#  ifdef __cplusplus
extern "C" {
#  endif

/*
 * hashType renamed to typeH to avoid shadowing global declaration here:
 * wolfssl/wolfcrypt/asn.h line 173 in enum Oid_Types
 */
WOLFSSL_API int
wc_PBKDF1(byte * output, const byte * passwd, int pLen,
  const byte * salt, int sLen, int iterations, int kLen,
  int typeH);
WOLFSSL_API int
wc_PBKDF2(byte * output, const byte * passwd, int pLen,
  const byte * salt, int sLen, int iterations, int kLen,
  int typeH);
WOLFSSL_API int
wc_PKCS12_PBKDF(byte * output, const byte * passwd, int pLen,
  const byte * salt, int sLen, int iterations,
  int kLen, int typeH, int purpose);
WOLFSSL_API int
wc_PKCS12_PBKDF_ex(byte * output, const byte * passwd, int passLen,
  const byte * salt, int saltLen, int iterations, int kLen,
  int hashType, int id, void * heap);

#  ifdef HAVE_SCRYPT
WOLFSSL_API int
wc_scrypt(byte * output, const byte * passwd, int passLen,
  const byte * salt, int saltLen, int cost,
  int blockSize, int parallel, int dkLen);
#  endif

/* helper functions */
WOLFSSL_LOCAL int
GetDigestSize(int typeH);
WOLFSSL_LOCAL int
GetPKCS12HashSizes(int typeH, word32 * v, word32 * u);
WOLFSSL_LOCAL int
DoPKCS12Hash(int typeH, byte * buffer, word32 totalLen,
  byte * Ai, word32 u, int iterations);


#  ifdef __cplusplus
} /* extern "C" */
#  endif

# endif /* NO_PWDBASED */
#endif  /* WOLF_CRYPT_PWDBASED_H */
