/***************************************************************************
* Additional implementation of "BIKE: Bit Flipping Key Encapsulation". 
* Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Written by Nir Drucker and Shay Gueron
* AWS Cryptographic Algorithms Group
* (ndrucker@amazon.com, gueron@amazon.com)
*
* The license is detailed in the file LICENSE.md, and applies to this file.
* ***************************************************************************/

#pragma once

#include "types.h"

void split_e(OUT split_e_t* split_e_, IN const e_t* e);

ret_t compute_syndrome(OUT syndrome_t* syndrome,
                       IN const ct_t* ct,
                       IN const sk_t* sk);

//e should be zeroed before calling the decoder.
ret_t decode(OUT e_t* e,
             IN const syndrome_t* s,
             IN const ct_t* ct,
             IN const sk_t* sk,
             IN const uint32_t u);