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Diffstat (limited to '')
-rw-r--r-- | src/core/crypto/key_manager.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/core/crypto/key_manager.h b/src/core/crypto/key_manager.h new file mode 100644 index 000000000..03152a12c --- /dev/null +++ b/src/core/crypto/key_manager.h @@ -0,0 +1,119 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#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 { + +std::array<u8, 0x10> operator"" _array16(const char* str, size_t len); +std::array<u8, 0x20> operator"" _array32(const char* str, size_t len); + +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(std::string_view filename, bool is_title_keys); + void AttemptLoadKeyFile(std::string_view dir1, std::string_view dir2, std::string_view 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 |