Decompile 3 functions in Source/Archive/GPak.cpp
Batch #12253 by ragnarok-clanker: 0 byte-identical, 3 confirmed by peer review. - fn_05074 GPakEx::CipherModeFinal<GPakEx::GOST,1,GPakEx::BlockCipherFinal<1,GPakEx::GOST::Dec>,GPakEx::CBC_Decryption>::CipherModeFinal<GPakEx::GOST,1,GPakEx::BlockCipherFinal<1,GPakEx::GOST::Dec>,GPakEx::CBC_Decryption>: logic confirmed by peer review - fn_05075 GPakEx::CipherModeFinal<GPakEx::GOST,1,GPakEx::BlockCipherFinal<0,GPakEx::GOST::Enc>,GPakEx::CFB_Decryption>::CipherModeFinal<GPakEx::GOST,1,GPakEx::BlockCipherFinal<0,GPakEx::GOST::Enc>,GPakEx::CFB_Decryption>: logic confirmed by peer review - fn_05077 GPakEx::CipherModeFinal<GPakEx::IDEA,1,GPakEx::BlockCipherFinal<1,GPakEx::IDEA::Base>,GPakEx::CBC_Decryption>::CipherModeFinal<GPakEx::IDEA,1,GPakEx::BlockCipherFinal<1,GPakEx::IDEA::Base>,GPakEx::CBC_Decryption>: logic confirmed by peer review Peer-reviewed-by: Yommy, SapitoSucio Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
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ragnarok-clanker
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6b3ed9e707
1 changed files with 132 additions and 56 deletions
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@ -1725,60 +1725,6 @@ __declspec(noinline) PakKeyBlock48 PakMaskedKey48::Unmask() const {
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return result;
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}
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// OFFSET: 0x00658FA0
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// FUNCTION: fn_05114
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int OptimalDataAlignmentDS8OP34T() {
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return 8;
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}
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// OFFSET: 0x00658FB0
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// FUNCTION: fn_05115
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int BlockSizeDS8OP34T() {
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return 32;
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}
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// OFFSET: 0x00659AF0
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// FUNCTION: fn_45528
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bool PakAuxiliaryFlag45528() {
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return false;
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}
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// OFFSET: 0x00659B00
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// FUNCTION: fn_45529
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bool PakAuxiliaryFlag45529() {
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return false;
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}
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// OFFSET: 0x00659B10
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// FUNCTION: fn_45530
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bool PakAuxiliaryFlag45530() {
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return true;
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}
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// OFFSET: 0x00659B20
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// FUNCTION: fn_45531
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bool PakAuxiliaryFlag45531() {
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return false;
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}
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// OFFSET: 0x00659B30
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// FUNCTION: fn_45532
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bool PakAuxiliaryFlag45532() {
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return false;
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}
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// OFFSET: 0x00659B40
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// FUNCTION: fn_45533
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bool PakAuxiliaryFlag45533() {
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return false;
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}
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// OFFSET: 0x00659B50
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// FUNCTION: fn_45534
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bool PakAuxiliaryFlag45534() {
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return false;
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}
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// OFFSET: 0x0065AA00
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// FUNCTION: fn_05133
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std::uint32_t IdeaMulInv(std::uint32_t x) {
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@ -2436,7 +2382,7 @@ namespace GPakEx {
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std::size_t OptimalDataAlignment() const override;
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void SetKey(std::span<const std::uint8_t> key) override;
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/* 0004 */ std::uint32_t m_key[3];
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/* 0004 */ std::uint32_t m_key[3]{};
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};
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class Enc : public Base {
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@ -2546,6 +2492,12 @@ namespace GPakEx {
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public:
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class Base : public BlockCipher {
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public:
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~Base() override {
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SecureWipe(this->m_key, sizeof(this->m_key));
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}
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std::size_t BlockSize() const override;
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std::size_t OptimalDataAlignment() const override;
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void SetKey(std::span<const std::uint8_t> key) override;
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static void PrecalculateSTable();
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@ -2554,7 +2506,7 @@ namespace GPakEx {
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static bool s_sTableCalculated;
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static std::uint32_t s_sTable[4][256];
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/* 0004 */ std::uint32_t m_key[8];
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/* 0004 */ std::uint32_t m_key[8]{};
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};
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class Enc : public Base {
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@ -2568,6 +2520,18 @@ namespace GPakEx {
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};
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};
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// OFFSET: 0x00658FA0
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// FUNCTION: fn_05114
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std::size_t GOST::Base::BlockSize() const {
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return 8;
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}
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// OFFSET: 0x00658FB0
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// FUNCTION: fn_05115
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std::size_t GOST::Base::OptimalDataAlignment() const {
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return 32;
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}
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// GLOBAL: gl_25481
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const std::uint8_t GOST::Base::s_sbox[8][16] = {
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{0x0b, 0x04, 0x0c, 0x07, 0x0c, 0x00, 0x09, 0x0d, 0x03, 0x0e, 0x0b, 0x0b, 0x09, 0x08, 0x00, 0x04},
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@ -3220,6 +3184,118 @@ namespace GPakEx {
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static_assert(offsetof(IdeaCbcEncryption, m_blockCipher) == 0x20);
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// OFFSET: 0x00659AF0
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// FUNCTION: fn_45528
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template<>
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bool BlockCipherFinal<true, IDEA::Base>::IsForwardTransformation() const {
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return false;
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}
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using IdeaCbcDecryption = CipherModeFinal<IDEA, true, BlockCipherFinal<true, IDEA::Base>, CBC_Decryption>;
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// OFFSET: 0x00659B50
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// FUNCTION: fn_45534
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template<>
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bool IdeaCbcDecryption::IsForwardTransformation() const {
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return false;
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}
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// OFFSET: 0x00656AC0
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// FUNCTION: fn_05077
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template<>
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__declspec(noinline) IdeaCbcDecryption::CipherModeFinal() {
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this->m_cipher = &this->m_blockCipher;
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this->ResizeBuffers();
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}
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// INLINED
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template<>
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__forceinline IdeaCbcDecryption::~CipherModeFinal() {
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SecureWipe(this->m_blockCipher.m_key, sizeof(this->m_blockCipher.m_key));
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}
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static_assert(offsetof(IdeaCbcDecryption, m_blockCipher) == 0x2C);
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using ThreeWayCfbDecryption = CipherModeFinal<ThreeWay, true, BlockCipherFinal<false, ThreeWay::Enc>, CFB_Decryption>;
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// OFFSET: 0x00659B40
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// FUNCTION: fn_45533
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template<>
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bool ThreeWayCfbDecryption::IsForwardTransformation() const {
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return false;
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}
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// OFFSET: 0x00656A20
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// INLINED
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template<>
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__forceinline ThreeWayCfbDecryption::~CipherModeFinal() {
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}
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static_assert(offsetof(ThreeWayCfbDecryption, m_blockCipher) == 0x2C);
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// OFFSET: 0x00659B00
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// FUNCTION: fn_45529
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template<>
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bool BlockCipherFinal<true, GOST::Dec>::IsForwardTransformation() const {
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return false;
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}
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// OFFSET: 0x00659B10
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// FUNCTION: fn_45530
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template<>
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bool BlockCipherFinal<false, GOST::Enc>::IsForwardTransformation() const {
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return true;
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}
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using GostCbcDecryption = CipherModeFinal<GOST, true, BlockCipherFinal<true, GOST::Dec>, CBC_Decryption>;
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// OFFSET: 0x00659B20
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// FUNCTION: fn_45531
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template<>
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bool GostCbcDecryption::IsForwardTransformation() const {
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return false;
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}
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// OFFSET: 0x006568E0
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// FUNCTION: fn_05074
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template<>
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__declspec(noinline) GostCbcDecryption::CipherModeFinal() {
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this->m_cipher = &this->m_blockCipher;
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this->ResizeBuffers();
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}
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// INLINED
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template<>
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__forceinline GostCbcDecryption::~CipherModeFinal() {
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}
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static_assert(offsetof(GostCbcDecryption, m_blockCipher) == 0x2C);
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using GostCfbDecryption = CipherModeFinal<GOST, true, BlockCipherFinal<false, GOST::Enc>, CFB_Decryption>;
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// OFFSET: 0x00659B30
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// FUNCTION: fn_45532
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template<>
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bool GostCfbDecryption::IsForwardTransformation() const {
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return false;
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}
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// OFFSET: 0x00656980
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// FUNCTION: fn_05075
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template<>
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__declspec(noinline) GostCfbDecryption::CipherModeFinal() {
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this->m_cipher = &this->m_blockCipher;
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this->ResizeBuffers();
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}
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// INLINED
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template<>
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__forceinline GostCfbDecryption::~CipherModeFinal() {
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}
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static_assert(offsetof(GostCfbDecryption, m_blockCipher) == 0x2C);
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class CipherModeFinal_6470D0 : public CipherModeStub {
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public:
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/* 0020 */ FixedStateBlockCipher<0xD0> m_blockCipher;
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