123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
// 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 <boost/container/flat_map.hpp>
|
|
#include <boost/optional.hpp>
|
|
#include <fmt/format.h>
|
|
#include "common/common_types.h"
|
|
|
|
namespace Loader {
|
|
enum class ResultStatus : u16;
|
|
}
|
|
|
|
namespace Core::Crypto {
|
|
|
|
constexpr u64 TICKET_FILE_TITLEKEY_OFFSET = 0x180;
|
|
|
|
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, //
|
|
SDKeySource, // f1=SDKeyType
|
|
};
|
|
|
|
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
|
|
Source, // f1=source type, f2= sub id
|
|
};
|
|
|
|
enum class KeyAreaKeyType : u8 {
|
|
Application,
|
|
Ocean,
|
|
System,
|
|
};
|
|
|
|
enum class SourceKeyType : u8 {
|
|
SDKEK,
|
|
AESKEKGeneration,
|
|
AESKeyGeneration,
|
|
};
|
|
|
|
enum class SDKeyType : u8 {
|
|
Save,
|
|
NCA,
|
|
};
|
|
|
|
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);
|
|
}
|
|
};
|
|
|
|
// boost flat_map requires operator< for O(log(n)) lookups.
|
|
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);
|
|
}
|
|
|
|
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);
|
|
|
|
// Call before using the sd seed to attempt to derive it if it dosen't exist. Needs system save
|
|
// 8*43 and the private file to exist.
|
|
void DeriveSDSeedLazy();
|
|
|
|
private:
|
|
boost::container::flat_map<KeyIndex<S128KeyType>, Key128> s128_keys;
|
|
boost::container::flat_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);
|
|
template <std::size_t Size>
|
|
void WriteKeyToFile(bool title_key, std::string_view keyname, const std::array<u8, Size>& key);
|
|
|
|
static const boost::container::flat_map<std::string, KeyIndex<S128KeyType>> s128_file_id;
|
|
static const boost::container::flat_map<std::string, KeyIndex<S256KeyType>> s256_file_id;
|
|
};
|
|
|
|
Key128 GenerateKeyEncryptionKey(Key128 source, Key128 master, Key128 kek_seed, Key128 key_seed);
|
|
boost::optional<Key128> DeriveSDSeed();
|
|
Loader::ResultStatus DeriveSDKeys(std::array<Key256, 2>& sd_keys, const KeyManager& keys);
|
|
|
|
} // namespace Core::Crypto
|