mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 16:05:06 +00:00
6e19ab2bbc
We have a new, improved string type coming up in AK (OOM aware, no null state), and while it's going to use UTF-8, the name UTF8String is a mouthful - so let's free up the String name by renaming the existing class. Making the old one have an annoying name will hopefully also help with quick adoption :^)
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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* Copyright (c) 2020, Ali Mohammad Pur <mpfard@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/StringView.h>
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#include <AK/Types.h>
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namespace Crypto {
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namespace Hash {
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template<size_t DigestS>
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struct Digest {
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static_assert(DigestS % 8 == 0);
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constexpr static size_t Size = DigestS / 8;
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u8 data[Size];
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[[nodiscard]] ALWAYS_INLINE u8 const* immutable_data() const { return data; }
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[[nodiscard]] ALWAYS_INLINE size_t data_length() const { return Size; }
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[[nodiscard]] ALWAYS_INLINE ReadonlyBytes bytes() const { return { immutable_data(), data_length() }; }
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};
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template<size_t BlockS, size_t DigestS, typename DigestT = Digest<DigestS>>
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class HashFunction {
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public:
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static_assert(BlockS % 8 == 0);
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static constexpr auto BlockSize = BlockS / 8;
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static_assert(DigestS % 8 == 0);
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static constexpr auto DigestSize = DigestS / 8;
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using DigestType = DigestT;
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constexpr static size_t block_size() { return BlockSize; }
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constexpr static size_t digest_size() { return DigestSize; }
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virtual void update(u8 const*, size_t) = 0;
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void update(Bytes buffer) { update(buffer.data(), buffer.size()); }
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void update(ReadonlyBytes buffer) { update(buffer.data(), buffer.size()); }
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void update(ByteBuffer const& buffer) { update(buffer.data(), buffer.size()); }
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void update(StringView string) { update((u8 const*)string.characters_without_null_termination(), string.length()); }
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virtual DigestType peek() = 0;
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virtual DigestType digest() = 0;
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virtual void reset() = 0;
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#ifndef KERNEL
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virtual DeprecatedString class_name() const = 0;
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#endif
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protected:
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virtual ~HashFunction() = default;
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};
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}
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}
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