monero/tests/unit_tests/bulletproofs.cpp

// Copyright (c) 2017-2018, The Monero Project
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#include "gtest/gtest.h"

#include "ringct/rctOps.h"
#include "ringct/bulletproofs.h"
#include "misc_log_ex.h"

TEST(bulletproofs, valid_zero)
{
  rct::Bulletproof proof = bulletproof_PROVE(0, rct::skGen());
  ASSERT_TRUE(rct::bulletproof_VERIFY(proof));
}

TEST(bulletproofs, valid_max)
{
  rct::Bulletproof proof = bulletproof_PROVE(0xffffffffffffffff, rct::skGen());
  ASSERT_TRUE(rct::bulletproof_VERIFY(proof));
}

TEST(bulletproofs, valid_random)
{
  for (int n = 0; n < 8; ++n)
  {
    rct::Bulletproof proof = bulletproof_PROVE(crypto::rand<uint64_t>(), rct::skGen());
    ASSERT_TRUE(rct::bulletproof_VERIFY(proof));
  }
}

TEST(bulletproofs, valid_multi_random)
{
  for (int n = 0; n < 8; ++n)
  {
    size_t outputs = 2 + n;
    std::vector<uint64_t> amounts;
    rct::keyV gamma;
    for (size_t i = 0; i < outputs; ++i)
    {
      amounts.push_back(crypto::rand<uint64_t>());
      gamma.push_back(rct::skGen());
    }
    rct::Bulletproof proof = bulletproof_PROVE(amounts, gamma);
    ASSERT_TRUE(rct::bulletproof_VERIFY(proof));
  }
}


TEST(bulletproofs, invalid_8)
{
  rct::key invalid_amount = rct::zero();
  invalid_amount[8] = 1;
  rct::Bulletproof proof = bulletproof_PROVE(invalid_amount, rct::skGen());
  ASSERT_FALSE(rct::bulletproof_VERIFY(proof));
}

TEST(bulletproofs, invalid_31)
{
  rct::key invalid_amount = rct::zero();
  invalid_amount[31] = 1;
  rct::Bulletproof proof = bulletproof_PROVE(invalid_amount, rct::skGen());
  ASSERT_FALSE(rct::bulletproof_VERIFY(proof));
}