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improved stuff

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Orange
2026-01-04 22:14:54 +03:00
parent 2b75b33d60
commit aabdebbbbe
1 changed files with 12 additions and 18 deletions
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30
include/omath/containers/encrypted_variable.hpp
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@@ -13,11 +13,8 @@
#define OMATH_FORCEINLINE __attribute__((always_inline)) inline #define OMATH_FORCEINLINE __attribute__((always_inline)) inline
#endif #endif
namespace omath namespace omath::detail
{ {
template<class T>
class Anchor;
consteval std::uint64_t fnv1a_64(const char* s) consteval std::uint64_t fnv1a_64(const char* s)
{ {
std::uint64_t h = 14695981039346656037ull; std::uint64_t h = 14695981039346656037ull;
@@ -84,17 +81,6 @@ namespace omath
{ {
return static_cast<std::uint8_t>(rand_u64(seed, i)); // narrowing is fine/deterministic return static_cast<std::uint8_t>(rand_u64(seed, i)); // narrowing is fine/deterministic
} }
constexpr std::array<std::uint8_t, 6> create_key()
{
std::array<std::uint8_t, 6> key{};
for (auto& byte : key)
{
byte = static_cast<std::uint8_t>(rand_u64<__COUNTER__>());
}
return key;
}
template<std::size_t N, std::uint64_t Seed, std::size_t... I> template<std::size_t N, std::uint64_t Seed, std::size_t... I>
consteval std::array<std::uint8_t, N> make_array_impl(std::index_sequence<I...>) consteval std::array<std::uint8_t, N> make_array_impl(std::index_sequence<I...>)
{ {
@@ -106,6 +92,12 @@ namespace omath
{ {
return make_array_impl<N, Seed>(std::make_index_sequence<N>{}); return make_array_impl<N, Seed>(std::make_index_sequence<N>{});
} }
} // namespace omath::detail
namespace omath
{
template<class T>
class Anchor;
template<class T, std::size_t key_size, std::array<std::uint8_t, key_size> key> template<class T, std::size_t key_size, std::array<std::uint8_t, key_size> key>
class EncryptedVariable final class EncryptedVariable final
{ {
@@ -141,10 +133,12 @@ namespace omath
bytes[i] ^= static_cast<std::uint8_t>(key[i % key.size()] + (i * key_size)); bytes[i] ^= static_cast<std::uint8_t>(key[i % key.size()] + (i * key_size));
m_is_encrypted = true; m_is_encrypted = true;
} }
[[nodiscard]]
OMATH_FORCEINLINE constexpr T& value() OMATH_FORCEINLINE constexpr T& value()
{ {
return m_data; return m_data;
} }
[[nodiscard]]
OMATH_FORCEINLINE constexpr const T& value() const OMATH_FORCEINLINE constexpr const T& value() const
{ {
return m_data; return m_data;
@@ -172,6 +166,6 @@ namespace omath
}; };
} // namespace omath } // namespace omath
#define CT_RAND_ARRAY_INT(N) \ #define OMATH_CT_RAND_ARRAY_BYTE(N) \
(::omath::make_array<(N), (::omath::base_seed() ^ static_cast<std::uint64_t>(__COUNTER__))>()) (::omath::detail::make_array<(N), (::omath::detail::base_seed() ^ static_cast<std::uint64_t>(__COUNTER__))>())
#define OMATH_DEF_CRYPT_VAR(TYPE, KEY_SIZE) omath::EncryptedVariable<TYPE, KEY_SIZE, CT_RAND_ARRAY_INT(KEY_SIZE)> #define OMATH_DEF_CRYPT_VAR(TYPE, KEY_SIZE) omath::EncryptedVariable<TYPE, KEY_SIZE, OMATH_CT_RAND_ARRAY_BYTE(KEY_SIZE)>