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54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// Copyright 2017 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <limits>
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#include <memory>
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#include <string_view>
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#include <type_traits>
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#include <vector>
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#include "Common/Assert.h"
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#include "Common/CommonTypes.h"
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namespace Common::SHA1
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{
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using Digest = std::array<u8, 160 / 8>;
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static constexpr size_t DIGEST_LEN = sizeof(Digest);
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class Context
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{
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public:
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virtual ~Context() = default;
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virtual void Update(const u8* msg, size_t len) = 0;
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void Update(const std::vector<u8>& msg) { return Update(msg.data(), msg.size()); }
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virtual Digest Finish() = 0;
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};
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std::unique_ptr<Context> CreateContext();
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Digest CalculateDigest(const u8* msg, size_t len);
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template <typename T>
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inline Digest CalculateDigest(const std::vector<T>& msg)
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{
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static_assert(std::is_trivially_copyable_v<T>);
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ASSERT(std::numeric_limits<size_t>::max() / sizeof(T) >= msg.size());
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return CalculateDigest(reinterpret_cast<const u8*>(msg.data()), sizeof(T) * msg.size());
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}
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inline Digest CalculateDigest(const std::string_view& msg)
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{
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return CalculateDigest(reinterpret_cast<const u8*>(msg.data()), msg.size());
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}
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template <typename T, size_t Size>
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inline Digest CalculateDigest(const std::array<T, Size>& msg)
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{
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static_assert(std::is_trivially_copyable_v<T>);
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return CalculateDigest(reinterpret_cast<const u8*>(msg.data()), sizeof(msg));
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}
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} // namespace Common::SHA1
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