Files
rippled/beast/container/tests/hardened_hash.test.cpp
Howard Hinnant 6a1071ccd3 Tidy up hardened_hash:
* Added siphash as a HashAlgorithm
* Refactored class responsibilities
2014-07-28 09:06:22 -07:00

314 lines
7.4 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
// MODULES: ../../crypto/impl/Sha256.cpp ../../container/impl/spookyv2.cpp
#if BEAST_INCLUDE_BEASTCONFIG
#include <BeastConfig.h>
#endif
#include <beast/container/hardened_hash.h>
#include <beast/unit_test/suite.h>
#include <beast/crypto/Sha256.h>
#include <boost/functional/hash.hpp>
#include <array>
#include <cstdint>
#include <iomanip>
#include <functional>
#include <unordered_map>
#include <unordered_set>
namespace beast {
namespace detail {
template <class T>
class test_user_type_member
{
private:
T t;
public:
explicit test_user_type_member (T const& t_ = T())
: t (t_)
{
}
template <class Hasher>
friend void hash_append (Hasher& h, test_user_type_member const& a) noexcept
{
using beast::hash_append;
hash_append (h, a.t);
}
};
template <class T>
class test_user_type_free
{
private:
T t;
public:
explicit test_user_type_free (T const& t_ = T())
: t (t_)
{
}
template <class Hasher>
friend void hash_append (Hasher& h, test_user_type_free const& a) noexcept
{
using beast::hash_append;
hash_append (h, a.t);
}
};
} // detail
} // beast
//------------------------------------------------------------------------------
namespace beast {
namespace detail {
template <class T>
using test_hardened_unordered_set =
std::unordered_set <T, hardened_hash <>>;
template <class T>
using test_hardened_unordered_map =
std::unordered_map <T, int, hardened_hash <>>;
template <class T>
using test_hardened_unordered_multiset =
std::unordered_multiset <T, hardened_hash <>>;
template <class T>
using test_hardened_unordered_multimap =
std::unordered_multimap <T, int, hardened_hash <>>;
} // beast
template <std::size_t Bits, class UInt = std::uint64_t>
class unsigned_integer
{
private:
static_assert (std::is_integral<UInt>::value &&
std::is_unsigned <UInt>::value,
"UInt must be an unsigned integral type");
static_assert (Bits%(8*sizeof(UInt))==0,
"Bits must be a multiple of 8*sizeof(UInt)");
static_assert (Bits >= (8*sizeof(UInt)),
"Bits must be at least 8*sizeof(UInt)");
static std::size_t const size = Bits/(8*sizeof(UInt));
std::array <UInt, size> m_vec;
public:
typedef UInt value_type;
static std::size_t const bits = Bits;
static std::size_t const bytes = bits / 8;
template <class Int>
static
unsigned_integer
from_number (Int v)
{
unsigned_integer result;
for (std::size_t i (1); i < size; ++i)
result.m_vec [i] = 0;
result.m_vec[0] = v;
return result;
}
void*
data() noexcept
{
return &m_vec[0];
}
void const*
data() const noexcept
{
return &m_vec[0];
}
template <class Hasher>
friend void hash_append(Hasher& h, unsigned_integer const& a) noexcept
{
using beast::hash_append;
hash_append (h, a.m_vec);
}
friend
std::ostream&
operator<< (std::ostream& s, unsigned_integer const& v)
{
for (std::size_t i (0); i < size; ++i)
s <<
std::hex <<
std::setfill ('0') <<
std::setw (2*sizeof(UInt)) <<
v.m_vec[i]
;
return s;
}
};
typedef unsigned_integer <256, std::size_t> sha256_t;
static_assert (sha256_t::bits == 256,
"sha256_t must have 256 bits");
} // beast
//------------------------------------------------------------------------------
namespace beast {
class hardened_hash_test
: public unit_test::suite
{
public:
template <class T>
void
check ()
{
T t{};
hardened_hash <>() (t);
pass();
}
template <template <class T> class U>
void
check_user_type()
{
check <U <bool>> ();
check <U <char>> ();
check <U <signed char>> ();
check <U <unsigned char>> ();
// These cause trouble for boost
//check <U <char16_t>> ();
//check <U <char32_t>> ();
check <U <wchar_t>> ();
check <U <short>> ();
check <U <unsigned short>> ();
check <U <int>> ();
check <U <unsigned int>> ();
check <U <long>> ();
check <U <long long>> ();
check <U <unsigned long>> ();
check <U <unsigned long long>> ();
check <U <float>> ();
check <U <double>> ();
check <U <long double>> ();
}
template <template <class T> class C >
void
check_container()
{
{
C <detail::test_user_type_member <std::string>> c;
}
pass();
{
C <detail::test_user_type_free <std::string>> c;
}
pass();
}
void
test_user_types()
{
testcase ("user types");
check_user_type <detail::test_user_type_member> ();
check_user_type <detail::test_user_type_free> ();
}
void
test_containers()
{
testcase ("containers");
check_container <detail::test_hardened_unordered_set>();
check_container <detail::test_hardened_unordered_map>();
check_container <detail::test_hardened_unordered_multiset>();
check_container <detail::test_hardened_unordered_multimap>();
}
void
run ()
{
test_user_types();
test_containers();
}
};
class hardened_hash_sha256_test
: public unit_test::suite
{
public:
void
testSHA256()
{
testcase ("sha256");
log <<
"sizeof(std::size_t) == " << sizeof(std::size_t);
hardened_hash <> h;
for (int i = 0; i < 100; ++i)
{
sha256_t v (sha256_t::from_number (i));
Sha256::digest_type d;
Sha256::hash (v.data(), sha256_t::bytes, d);
sha256_t d_;
memcpy (d_.data(), d.data(), sha256_t::bytes);
std::size_t result (h (d_));
log <<
"i=" << std::setw(2) << i << " " <<
"sha256=0x" << d_ << " " <<
"hash=0x" <<
std::setfill ('0') <<
std::setw (2*sizeof(std::size_t)) << result
;
pass();
}
}
void
run ()
{
testSHA256();
}
};
BEAST_DEFINE_TESTSUITE(hardened_hash,utility,beast);
BEAST_DEFINE_TESTSUITE_MANUAL(hardened_hash_sha256,utility,beast);
} // beast