rct_mlsag.h

Go to the documentation of this file.

// Copyright (c) 2014-2019, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER 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.
// 
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
#pragma once
 
#include "ringct/rctSigs.h"
#include "cryptonote_basic/cryptonote_basic.h"
 
#include "single_tx_test_base.h"
 
template<size_t inputs, size_t ring_size, bool ver>
class test_ringct_mlsag : public single_tx_test_base
{
public:
  static const size_t cols = ring_size;
  static const size_t rows = inputs;
  static const size_t loop_count = 100;
 
  bool init()
  {
    if (!single_tx_test_base::init())
      return false;
 
    rct::keyV xtmp = rct::skvGen(rows);
    rct::keyM xm = rct::keyMInit(rows, cols);// = [[None]*N] #just used to generate test public keys
    sk = rct::skvGen(rows);
    P  = rct::keyMInit(rows, cols);// = keyM[[None]*N] #stores the public keys;
    ind = 2;
    for (size_t j = 0 ; j < rows ; j++)
    {
        for (size_t i = 0 ; i < cols ; i++)
        {
            xm[i][j] = rct::skGen();
            P[i][j] = rct::scalarmultBase(xm[i][j]);
        }
    }
    for (size_t j = 0 ; j < rows ; j++)
    {
        sk[j] = xm[ind][j];
    }
    IIccss = MLSAG_Gen(rct::identity(), P, sk, NULL, NULL, ind, rows, hw::get_device("default"));
 
    return true;
  }
 
  bool test()
  {
    if (ver)
      MLSAG_Ver(rct::identity(), P, IIccss, rows);
    else
      MLSAG_Gen(rct::identity(), P, sk, NULL, NULL, ind, rows, hw::get_device("default"));
    return true;
  }
 
private:
  rct::keyV sk;
  rct::keyM P;
  size_t ind;
  rct::mgSig IIccss;
};