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4b73d18eaa
The old implementation of this was not able to distinguish between a title that had the common key index set to 1 because it actually was Korean and a title that had the common key index set to 1 due to fakesigning. This new implementation solves the problem by decrypting a content with each possible common key and checking which result matches the provided SHA-1 hash. The problem that the old implementation causes has only been reported to affect a certain pirated WAD of Chronos Twins DX (WC6EUP), but it's possible that the problem would start affecting more WADs if we add support for the vWii common key (which uses index 2). Adding support for the vWii common key would also prevent us from using the simpler solution of always forcing the index to 0 if the title is not Korean.
88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <map>
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#include <memory>
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#include <optional>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Core/IOS/ES/Formats.h"
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#include "DiscIO/Volume.h"
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namespace DiscIO
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{
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class BlobReader;
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enum class BlobType;
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enum class Country;
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class FileSystem;
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enum class Language;
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enum class Region;
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enum class Platform;
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class VolumeWAD : public Volume
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{
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public:
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VolumeWAD(std::unique_ptr<BlobReader> reader);
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bool Read(u64 offset, u64 length, u8* buffer,
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const Partition& partition = PARTITION_NONE) const override;
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const FileSystem* GetFileSystem(const Partition& partition = PARTITION_NONE) const override;
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std::optional<u64> GetTitleID(const Partition& partition = PARTITION_NONE) const override;
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const IOS::ES::TicketReader&
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GetTicket(const Partition& partition = PARTITION_NONE) const override;
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const IOS::ES::TMDReader& GetTMD(const Partition& partition = PARTITION_NONE) const override;
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const std::vector<u8>&
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GetCertificateChain(const Partition& partition = PARTITION_NONE) const override;
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std::vector<u8> GetContent(u16 index) const override;
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std::vector<u64> GetContentOffsets() const override;
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bool CheckContentIntegrity(const IOS::ES::Content& content, u64 content_offset,
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const IOS::ES::TicketReader& ticket) const override;
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IOS::ES::TicketReader GetTicketWithFixedCommonKey() const override;
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std::string GetGameID(const Partition& partition = PARTITION_NONE) const override;
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std::string GetGameTDBID(const Partition& partition = PARTITION_NONE) const override;
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std::string GetMakerID(const Partition& partition = PARTITION_NONE) const override;
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std::optional<u16> GetRevision(const Partition& partition = PARTITION_NONE) const override;
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std::string GetInternalName(const Partition& partition = PARTITION_NONE) const override
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{
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return "";
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}
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std::map<Language, std::string> GetLongNames() const override;
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std::vector<u32> GetBanner(u32* width, u32* height) const override;
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std::string GetApploaderDate(const Partition& partition = PARTITION_NONE) const override
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{
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return "";
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}
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Platform GetVolumeType() const override;
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Region GetRegion() const override;
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Country GetCountry(const Partition& partition = PARTITION_NONE) const override;
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BlobType GetBlobType() const override;
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u64 GetSize() const override;
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bool IsSizeAccurate() const override;
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u64 GetRawSize() const override;
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private:
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bool CheckContentIntegrity(const IOS::ES::Content& content, const std::vector<u8>& encrypted_data,
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const IOS::ES::TicketReader& ticket) const;
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std::unique_ptr<BlobReader> m_reader;
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IOS::ES::TicketReader m_ticket;
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IOS::ES::TMDReader m_tmd;
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std::vector<u8> m_cert_chain;
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u32 m_cert_chain_offset = 0;
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u32 m_ticket_offset = 0;
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u32 m_tmd_offset = 0;
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u32 m_data_offset = 0;
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u32 m_opening_bnr_offset = 0;
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u32 m_hdr_size = 0;
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u32 m_cert_chain_size = 0;
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u32 m_ticket_size = 0;
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u32 m_tmd_size = 0;
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u32 m_data_size = 0;
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};
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} // namespace DiscIO
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