5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
82 lines
1.7 KiB
C++
82 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 <LibCrypto/Hash/HashFunction.h>
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#ifndef KERNEL
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# include <AK/ByteString.h>
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#endif
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namespace Crypto::Hash {
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namespace SHA1Constants {
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constexpr static u32 InitializationHashes[5] { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 };
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constexpr static u32 RoundConstants[4] {
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0X5a827999,
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0X6ed9eba1,
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0X8f1bbcdc,
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0Xca62c1d6,
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};
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}
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class SHA1 final : public HashFunction<512, 160> {
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public:
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using HashFunction::update;
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SHA1()
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{
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reset();
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}
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virtual void update(u8 const*, size_t) override;
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virtual DigestType digest() override;
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virtual DigestType peek() override;
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static DigestType hash(u8 const* data, size_t length)
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{
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SHA1 sha;
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sha.update(data, length);
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return sha.digest();
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}
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static DigestType hash(ByteBuffer const& buffer) { return hash(buffer.data(), buffer.size()); }
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static DigestType hash(StringView buffer) { return hash((u8 const*)buffer.characters_without_null_termination(), buffer.length()); }
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#ifndef KERNEL
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virtual ByteString class_name() const override
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{
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return "SHA1";
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}
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#endif
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virtual void reset() override
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{
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m_data_length = 0;
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m_bit_length = 0;
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for (auto i = 0; i < 5; ++i)
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m_state[i] = SHA1Constants::InitializationHashes[i];
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}
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private:
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inline void transform(u8 const*);
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u8 m_data_buffer[BlockSize] {};
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size_t m_data_length { 0 };
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u64 m_bit_length { 0 };
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u32 m_state[5];
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constexpr static auto FinalBlockDataSize = BlockSize - 8;
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constexpr static auto Rounds = 80;
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};
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}
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