monero/tests/unit_tests/random.cpp

// Copyright (c) 2018-2022, The Monero Project

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#include "gtest/gtest.h"

#include "crypto/crypto.h"

extern "C" {
#include "crypto/crypto-ops.h"
}

TEST(random32_unbiased, less_than_order)
{
  unsigned char tmp[32], tmp2[32];
  for (int i = 0; i < 1000; ++i)
  {
    crypto::random32_unbiased(tmp);
    memcpy(tmp2, tmp, 32);
    sc_reduce32(tmp2);
    ASSERT_EQ(memcmp(tmp, tmp2, 32), 0);
  }
}