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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <string>
#include <type_traits>
#include <unordered_map>
#include <vector>
#include <fmt/format.h>
#include "common/common_types.h"
namespace Core::Crypto {
using Key128 = std::array<u8, 0x10>;
using Key256 = std::array<u8, 0x20>;
using SHA256Hash = std::array<u8, 0x20>;
static_assert(sizeof(Key128) == 16, "Key128 must be 128 bytes big.");
static_assert(sizeof(Key256) == 32, "Key128 must be 128 bytes big.");
enum class S256KeyType : u64 {
Header, //
SDSave, //
SDNCA, //
};
enum class S128KeyType : u64 {
Master, // f1=crypto revision
Package1, // f1=crypto revision
Package2, // f1=crypto revision
Titlekek, // f1=crypto revision
ETicketRSAKek, //
KeyArea, // f1=crypto revision f2=type {app, ocean, system}
SDSeed, //
Titlekey, // f1=rights id LSB f2=rights id MSB
};
enum class KeyAreaKeyType : u8 {
Application,
Ocean,
System,
};
template <typename KeyType>
struct KeyIndex {
KeyType type;
u64 field1;
u64 field2;
std::string DebugInfo() const {
u8 key_size = 16;
if constexpr (std::is_same_v<KeyType, S256KeyType>)
key_size = 32;
return fmt::format("key_size={:02X}, key={:02X}, field1={:016X}, field2={:016X}", key_size,
static_cast<u8>(type), field1, field2);
}
};
// The following two (== and hash) are so KeyIndex can be a key in unordered_map
template <typename KeyType>
bool operator==(const KeyIndex<KeyType>& lhs, const KeyIndex<KeyType>& rhs) {
return std::tie(lhs.type, lhs.field1, lhs.field2) == std::tie(rhs.type, rhs.field1, rhs.field2);
}
template <typename KeyType>
bool operator!=(const KeyIndex<KeyType>& lhs, const KeyIndex<KeyType>& rhs) {
return !operator==(lhs, rhs);
}
} // namespace Core::Crypto
namespace std {
template <typename KeyType>
struct hash<Core::Crypto::KeyIndex<KeyType>> {
size_t operator()(const Core::Crypto::KeyIndex<KeyType>& k) const {
using std::hash;
return ((hash<u64>()(static_cast<u64>(k.type)) ^ (hash<u64>()(k.field1) << 1)) >> 1) ^
(hash<u64>()(k.field2) << 1);
}
};
} // namespace std
namespace Core::Crypto {
class KeyManager {
public:
KeyManager();
bool HasKey(S128KeyType id, u64 field1 = 0, u64 field2 = 0) const;
bool HasKey(S256KeyType id, u64 field1 = 0, u64 field2 = 0) const;
Key128 GetKey(S128KeyType id, u64 field1 = 0, u64 field2 = 0) const;
Key256 GetKey(S256KeyType id, u64 field1 = 0, u64 field2 = 0) const;
void SetKey(S128KeyType id, Key128 key, u64 field1 = 0, u64 field2 = 0);
void SetKey(S256KeyType id, Key256 key, u64 field1 = 0, u64 field2 = 0);
static bool KeyFileExists(bool title);
private:
std::unordered_map<KeyIndex<S128KeyType>, Key128> s128_keys;
std::unordered_map<KeyIndex<S256KeyType>, Key256> s256_keys;
bool dev_mode;
void LoadFromFile(const std::string& filename, bool is_title_keys);
void AttemptLoadKeyFile(const std::string& dir1, const std::string& dir2,
const std::string& filename, bool title);
static const std::unordered_map<std::string, KeyIndex<S128KeyType>> s128_file_id;
static const std::unordered_map<std::string, KeyIndex<S256KeyType>> s256_file_id;
};
} // namespace Core::Crypto
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