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