rct_mlsag.h

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// Copyright (c) 2014-2022, The Monero Project
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// 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 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 = 2; // single spend and commitment data
  static const size_t loop_count = 1000;
 
  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, ind, rows-1, hw::get_device("default"));
 
    return true;
  }
 
  bool test()
  {
    if (ver)
      MLSAG_Ver(rct::identity(), P, IIccss, rows-1);
    else
      MLSAG_Gen(rct::identity(), P, sk, ind, rows-1, hw::get_device("default"));
    return true;
  }
 
private:
  rct::keyV sk;
  rct::keyM P;
  size_t ind{};
  rct::mgSig IIccss;
};