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Re-enable constexpr hashing #59

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merged 8 commits into from
Oct 29, 2024
Merged

Re-enable constexpr hashing #59

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825eb28
Make the SHA512 family constexpr
mborland Oct 29, 2024
d60fcff
Apply CRTP requirements to hasher_base
mborland Oct 29, 2024
4fd7950
Make MD5 constexpr
mborland Oct 29, 2024
6412a07
Make SHA224/256 constexpr
mborland Oct 29, 2024
5e89378
Make sha224 and 256 constexpr
mborland Oct 29, 2024
d5d4b97
Make SHA1 constexpr
mborland Oct 29, 2024
4b8c851
Fix missing typename
mborland Oct 29, 2024
6c0747c
Fix namespace for windows platforms
mborland Oct 29, 2024
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95 changes: 47 additions & 48 deletions include/boost/crypt/hash/detail/hasher_base_512.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -31,20 +31,19 @@ namespace hash_detail {

// This hasher base is for use processing 512-bit blocks at a time
template <boost::crypt::size_t digest_size,
boost::crypt::size_t intermediate_hash_size>
boost::crypt::size_t intermediate_hash_size,
typename Derived>
class hasher_base_512
{
protected:

// This function should be pure virtual but GCC < 9 won't accept that
// LCOV_EXCL_START
virtual BOOST_CRYPT_GPU_ENABLED inline auto process_message_block() noexcept -> void {};
// LCOV_EXCL_STOP
// Use CRTP to make this constexpr with C++14
BOOST_CRYPT_GPU_ENABLED constexpr auto process_message_block() noexcept -> void { static_cast<Derived*>(this)->process_message_block(); };

BOOST_CRYPT_GPU_ENABLED inline auto pad_message() noexcept -> void;
BOOST_CRYPT_GPU_ENABLED constexpr auto pad_message() noexcept -> void;

template <typename ForwardIter>
BOOST_CRYPT_GPU_ENABLED inline auto update(ForwardIter data, boost::crypt::size_t size) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto update(ForwardIter data, boost::crypt::size_t size) noexcept -> hasher_state;

boost::crypt::array<boost::crypt::uint32_t, intermediate_hash_size> intermediate_hash_ {};
boost::crypt::array<boost::crypt::uint8_t , 64U> buffer_ {};
Expand All @@ -58,51 +57,51 @@ class hasher_base_512

using return_type = boost::crypt::array<boost::crypt::uint8_t, digest_size>;

BOOST_CRYPT_GPU_ENABLED inline auto base_init() noexcept -> void;
BOOST_CRYPT_GPU_ENABLED constexpr auto base_init() noexcept -> void;

template <typename ByteType>
BOOST_CRYPT_GPU_ENABLED inline auto process_byte(ByteType byte) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto process_byte(ByteType byte) noexcept -> hasher_state;

template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 1, bool> = true>
BOOST_CRYPT_GPU_ENABLED inline auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;

template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 2, bool> = true>
BOOST_CRYPT_GPU_ENABLED inline auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;

template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 4, bool> = true>
BOOST_CRYPT_GPU_ENABLED inline auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state;

#ifdef BOOST_CRYPT_HAS_STRING_VIEW

inline auto process_bytes(std::string_view str) noexcept -> hasher_state;
constexpr auto process_bytes(std::string_view str) noexcept -> hasher_state;

inline auto process_bytes(std::u16string_view str) noexcept -> hasher_state;
constexpr auto process_bytes(std::u16string_view str) noexcept -> hasher_state;

inline auto process_bytes(std::u32string_view str) noexcept -> hasher_state;
constexpr auto process_bytes(std::u32string_view str) noexcept -> hasher_state;

inline auto process_bytes(std::wstring_view str) noexcept -> hasher_state;
constexpr auto process_bytes(std::wstring_view str) noexcept -> hasher_state;

#endif // BOOST_CRYPT_HAS_STRING_VIEW

#ifdef BOOST_CRYPT_HAS_SPAN

template <typename T, boost::crypt::size_t extent>
inline auto process_bytes(std::span<T, extent> data) noexcept -> hasher_state;
constexpr auto process_bytes(std::span<T, extent> data) noexcept -> hasher_state;

#endif // BOOST_CRYPT_HAS_SPAN

#ifdef BOOST_CRYPT_HAS_CUDA

template <typename T, boost::crypt::size_t extent>
BOOST_CRYPT_GPU_ENABLED inline auto process_bytes(cuda::std::span<T, extent> data) noexcept -> hasher_state;
BOOST_CRYPT_GPU_ENABLED constexpr auto process_bytes(cuda::std::span<T, extent> data) noexcept -> hasher_state;

#endif // BOOST_CRYPT_HAS_CUDA

virtual BOOST_CRYPT_GPU_ENABLED inline auto get_digest() noexcept -> return_type;
BOOST_CRYPT_GPU_ENABLED constexpr auto get_base_digest() noexcept -> return_type;
};

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::base_init() noexcept -> void
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::base_init() noexcept -> void
{
buffer_.fill(0);
buffer_index_ = 0U;
Expand All @@ -112,18 +111,18 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
corrupted = false;
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename ByteType>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_byte(ByteType byte) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_byte(ByteType byte) noexcept -> hasher_state
{
static_assert(boost::crypt::is_convertible_v<ByteType, boost::crypt::uint8_t>, "Byte must be convertible to uint8_t");
const auto value {static_cast<boost::crypt::uint8_t>(byte)};
return update(&value, 1UL);
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 1, bool>>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
{
if (!utility::is_null(buffer))
{
Expand All @@ -135,9 +134,9 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
}
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 2, bool>>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
{
#ifndef BOOST_CRYPT_HAS_CUDA

Expand Down Expand Up @@ -167,9 +166,9 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
#endif
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename ForwardIter, boost::crypt::enable_if_t<sizeof(typename utility::iterator_traits<ForwardIter>::value_type) == 4, bool>>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(ForwardIter buffer, boost::crypt::size_t byte_count) noexcept -> hasher_state
{
#ifndef BOOST_CRYPT_HAS_CUDA

Expand Down Expand Up @@ -199,10 +198,10 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
#endif
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::get_digest() noexcept -> hasher_base_512<digest_size, intermediate_hash_size>::return_type
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::get_base_digest() noexcept -> hasher_base_512<digest_size, intermediate_hash_size, Derived>::return_type
{
hasher_base_512<digest_size, intermediate_hash_size>::return_type digest{};
hasher_base_512<digest_size, intermediate_hash_size, Derived>::return_type digest{};

if (corrupted)
{
Expand All @@ -228,8 +227,8 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
return digest;
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::pad_message() noexcept -> void
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::pad_message() noexcept -> void
{
// 448 bits out of 512
constexpr boost::crypt::size_t message_length_start_index {56U};
Expand Down Expand Up @@ -274,9 +273,9 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha
process_message_block();
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename ForwardIter>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::update(ForwardIter data, boost::crypt::size_t size) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::update(ForwardIter data, boost::crypt::size_t size) noexcept -> hasher_state
{
if (size == 0U)
{
Expand Down Expand Up @@ -323,26 +322,26 @@ BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_ha

#ifdef BOOST_CRYPT_HAS_STRING_VIEW

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(std::string_view str) noexcept -> hasher_state
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(std::string_view str) noexcept -> hasher_state
{
return process_bytes(str.begin(), str.size());
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(std::u16string_view str) noexcept -> hasher_state
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(std::u16string_view str) noexcept -> hasher_state
{
return process_bytes(str.begin(), str.size());
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(std::u32string_view str) noexcept -> hasher_state
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(std::u32string_view str) noexcept -> hasher_state
{
return process_bytes(str.begin(), str.size());
}

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(std::wstring_view str) noexcept -> hasher_state
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(std::wstring_view str) noexcept -> hasher_state
{
return process_bytes(str.begin(), str.size());
}
Expand All @@ -351,9 +350,9 @@ inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(

#ifdef BOOST_CRYPT_HAS_SPAN

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename T, boost::crypt::size_t extent>
inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(std::span<T, extent> data) noexcept -> hasher_state
constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(std::span<T, extent> data) noexcept -> hasher_state
{
return process_bytes(data.begin(), data.size());
}
Expand All @@ -362,9 +361,9 @@ inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(

#ifdef BOOST_CRYPT_HAS_CUDA

template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size>
template <boost::crypt::size_t digest_size, boost::crypt::size_t intermediate_hash_size, typename Derived>
template <typename T, boost::crypt::size_t extent>
BOOST_CRYPT_GPU_ENABLED inline auto hasher_base_512<digest_size, intermediate_hash_size>::process_bytes(cuda::std::span<T, extent> data) noexcept -> hasher_state
BOOST_CRYPT_GPU_ENABLED constexpr auto hasher_base_512<digest_size, intermediate_hash_size, Derived>::process_bytes(cuda::std::span<T, extent> data) noexcept -> hasher_state
{
return process_bytes(data.begin(), data.size());
}
Expand Down
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