118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <type_traits>
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#include <unordered_map>
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#include <vector>
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#include <fmt/format.h>
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#include "common/common_types.h"
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namespace Core::Crypto {
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using Key128 = std::array<u8, 0x10>;
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using Key256 = std::array<u8, 0x20>;
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using SHA256Hash = std::array<u8, 0x20>;
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static_assert(sizeof(Key128) == 16, "Key128 must be 128 bytes big.");
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static_assert(sizeof(Key256) == 32, "Key128 must be 128 bytes big.");
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enum class S256KeyType : u64 {
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Header, //
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SDSave, //
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SDNCA, //
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};
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enum class S128KeyType : u64 {
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Master, // f1=crypto revision
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Package1, // f1=crypto revision
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Package2, // f1=crypto revision
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Titlekek, // f1=crypto revision
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ETicketRSAKek, //
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KeyArea, // f1=crypto revision f2=type {app, ocean, system}
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SDSeed, //
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Titlekey, // f1=rights id LSB f2=rights id MSB
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};
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enum class KeyAreaKeyType : u8 {
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Application,
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Ocean,
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System,
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};
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template <typename KeyType>
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struct KeyIndex {
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KeyType type;
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u64 field1;
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u64 field2;
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std::string DebugInfo() const {
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u8 key_size = 16;
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if constexpr (std::is_same_v<KeyType, S256KeyType>)
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key_size = 32;
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return fmt::format("key_size={:02X}, key={:02X}, field1={:016X}, field2={:016X}", key_size,
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static_cast<u8>(type), field1, field2);
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}
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};
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// The following two (== and hash) are so KeyIndex can be a key in unordered_map
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template <typename KeyType>
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bool operator==(const KeyIndex<KeyType>& lhs, const KeyIndex<KeyType>& rhs) {
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return std::tie(lhs.type, lhs.field1, lhs.field2) == std::tie(rhs.type, rhs.field1, rhs.field2);
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}
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template <typename KeyType>
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bool operator!=(const KeyIndex<KeyType>& lhs, const KeyIndex<KeyType>& rhs) {
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return !operator==(lhs, rhs);
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}
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} // namespace Core::Crypto
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namespace std {
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template <typename KeyType>
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struct hash<Core::Crypto::KeyIndex<KeyType>> {
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size_t operator()(const Core::Crypto::KeyIndex<KeyType>& k) const {
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using std::hash;
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return ((hash<u64>()(static_cast<u64>(k.type)) ^ (hash<u64>()(k.field1) << 1)) >> 1) ^
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(hash<u64>()(k.field2) << 1);
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}
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};
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} // namespace std
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namespace Core::Crypto {
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std::array<u8, 0x10> operator"" _array16(const char* str, size_t len);
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std::array<u8, 0x20> operator"" _array32(const char* str, size_t len);
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class KeyManager {
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public:
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KeyManager();
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bool HasKey(S128KeyType id, u64 field1 = 0, u64 field2 = 0) const;
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bool HasKey(S256KeyType id, u64 field1 = 0, u64 field2 = 0) const;
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Key128 GetKey(S128KeyType id, u64 field1 = 0, u64 field2 = 0) const;
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Key256 GetKey(S256KeyType id, u64 field1 = 0, u64 field2 = 0) const;
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void SetKey(S128KeyType id, Key128 key, u64 field1 = 0, u64 field2 = 0);
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void SetKey(S256KeyType id, Key256 key, u64 field1 = 0, u64 field2 = 0);
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private:
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std::unordered_map<KeyIndex<S128KeyType>, Key128> s128_keys;
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std::unordered_map<KeyIndex<S256KeyType>, Key256> s256_keys;
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bool dev_mode;
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void LoadFromFile(std::string_view filename, bool is_title_keys);
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void AttemptLoadKeyFile(std::string_view dir1, std::string_view dir2, std::string_view filename,
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bool title);
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static const std::unordered_map<std::string, KeyIndex<S128KeyType>> s128_file_id;
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static const std::unordered_map<std::string, KeyIndex<S256KeyType>> s256_file_id;
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};
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} // namespace Core::Crypto
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