/**
 * Header file for the Lyra2 Password Hashing Scheme (PHS).
 *
 * Author: The Lyra PHC team (http://www.lyra-kdf.net/) -- 2014.
 *
 * This software is hereby placed in the public domain.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
 * 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 AUTHORS OR 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.
 */
#ifndef LYRA2_H_
#define LYRA2_H_

#include <stdint.h>

typedef unsigned char byte;

//Block length required so Blake2's Initialization Vector (IV) is not overwritten (THIS SHOULD NOT BE MODIFIED)
#define BLOCK_LEN_BLAKE2_SAFE_INT64 8                                   //512 bits (=64 bytes, =8 uint64_t)
#define BLOCK_LEN_BLAKE2_SAFE_BYTES (BLOCK_LEN_BLAKE2_SAFE_INT64 * 8)   //same as above, in bytes


#ifdef BLOCK_LEN_BITS
        #define BLOCK_LEN_INT64 (BLOCK_LEN_BITS/64)      //Block length: 768 bits (=96 bytes, =12 uint64_t)
        #define BLOCK_LEN_BYTES (BLOCK_LEN_BITS/8)       //Block length, in bytes
#else   //default block lenght: 768 bits
        #define BLOCK_LEN_INT64 12                       //Block length: 768 bits (=96 bytes, =12 uint64_t)
        #define BLOCK_LEN_BYTES (BLOCK_LEN_INT64 * 8)    //Block length, in bytes
#endif

#define BLOCK_LEN_256 (BLOCK_LEN_INT64 / 4 )
#define BLOCK_LEN_128 (BLOCK_LEN_INT64 / 2 )

int LYRA2RE( void *K, uint64_t kLen, const void *pwd,
             uint64_t pwdlen, const void *salt, uint64_t saltlen,
             uint64_t timeCost, uint64_t nRows, uint64_t nCols );


int LYRA2REV2( uint64_t*, void *K, uint64_t kLen, const void *pwd,
               uint64_t pwdlen, const void *salt, uint64_t saltlen,
               uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2REV3( uint64_t*, void *K, uint64_t kLen, const void *pwd,
               uint64_t pwdlen, const void *salt, uint64_t saltlen,
               uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2Z( uint64_t*, void *K, uint64_t kLen, const void *pwd,
            uint64_t pwdlen, const void *salt, uint64_t saltlen,
            uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2(void *K, int64_t kLen, const void *pwd, int32_t pwdlen, const void *salt, int32_t saltlen, int64_t timeCost, const int16_t nRows, const int16_t nCols);

#if defined(SIMD512)

int LYRA2RE_2WAY( void *K, uint64_t kLen, const void *pwd, uint64_t pwdlen,
                  uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2REV2_2WAY( uint64_t*, void *K, uint64_t kLen, const void *pwd,
        uint64_t pwdlen, uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2REV3_2WAY( uint64_t*, void *K, uint64_t kLen, const void *pwd,
        uint64_t pwdlen, uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2Z_2WAY( uint64_t*, void *K, uint64_t kLen, const void *pwd,
          uint64_t pwdlen, uint64_t timeCost, uint64_t nRows, uint64_t nCols );

int LYRA2X_2WAY( void *K, uint64_t kLen, const void *pwd, uint64_t pwdlen,
                  uint64_t timeCost, uint64_t nRows, uint64_t nCols );

#endif

#endif /* LYRA2_H_ */
