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Make util::make_uuid use md5 hash

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This commit is contained in:
Nikita Lisitsa 2025-08-06 17:54:24 +03:00
parent e57b284ffc
commit 7b1ed4bd95
1 changed files with 7 additions and 10 deletions
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17
libs/util/include/psemek/util/uuid.hpp
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@ -1,6 +1,7 @@
#pragma once
#include <psemek/util/hash.hpp>
#include <psemek/util/md5_inl.hpp>
#include <cstdint>
#include <string_view>
@ -46,18 +47,14 @@ namespace psemek::util
// TODO: use SHA-1 or something like that?
constexpr uuid make_uuid(std::string_view str)
{
struct char_hash
{
constexpr std::size_t operator()(char c) const noexcept
{
return static_cast<std::size_t>(c);
}
};
auto md5_result = md5_inl::hash(str);
uuid result;
result.values[0] = static_cast<std::uint64_t>(md5_result[0]) | (static_cast<std::uint64_t>(md5_result[1]) << 32);
result.values[1] = static_cast<std::uint64_t>(md5_result[2]) | (static_cast<std::uint64_t>(md5_result[3]) << 32);
uuid result{0x6eb49abceae6db24ull, 0x476c4c69fd7925a7ull};
hash_sequence(result[0], str.begin(), str.end(), char_hash{});
hash_sequence(result[1], str.begin(), str.end(), char_hash{});
make_rfc_4122(result);
return result;
}