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Decompile 4 functions in Source/Archive/PakCipher.cpp, Source/Archive/PakCipher.h

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Batch #909 by ragnarok-clanker: 0 byte-identical, 4 confirmed by peer review.

- fn_18102 myGPack::EncodeBlock: logic confirmed by peer review
- fn_18103 myGPack::FinalPermutation: logic confirmed by peer review
- fn_18104 myGPack::InitialPermutation: logic confirmed by peer review
- fn_18131 myGPack::DerivePakKey: logic confirmed by peer review

Reviewed-by: ragnarok-clanker
This commit is contained in:
ragnarok-clanker 2026-10-26 22:07:43 +00:00
commit f2eed45548
2 changed files with 8 additions and 8 deletions
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8
Source/Archive/PakCipher.cpp
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@ -263,7 +263,7 @@ namespace myGPack {
// OFFSET: 0x00AE9260
// FUNCTION: fn_18104
int __stdcall InitialPermutation(std::uint8_t* block) {
int InitialPermutation(std::uint8_t* block) {
std::uint8_t result[8] = {};
for (unsigned i = 0; i < 64; ++i) {
@ -282,7 +282,7 @@ namespace myGPack {
// OFFSET: 0x00AE91D0
// FUNCTION: fn_18103
int __stdcall FinalPermutation(std::uint8_t* block) {
int FinalPermutation(std::uint8_t* block) {
std::uint8_t result[8] = {};
for (unsigned i = 0; i < 64; ++i) {
@ -301,7 +301,7 @@ namespace myGPack {
// OFFSET: 0x00AE9020
// FUNCTION: fn_18102
int __stdcall EncodeBlock(int rounds, const std::uint8_t (*roundKeys)[8], std::uint32_t inputLow, std::uint32_t inputHigh, std::uint8_t* output) {
int EncodeBlock(int rounds, const std::uint8_t (*roundKeys)[8], std::uint32_t inputLow, std::uint32_t inputHigh, std::uint8_t* output) {
std::memcpy(output, &inputLow, 4);
std::memcpy(output + 4, &inputHigh, 4);
InitialPermutation(output);
@ -372,7 +372,7 @@ namespace myGPack {
// OFFSET: 0x00AEBC90
// FUNCTION: fn_18131
std::uint8_t* __stdcall DerivePakKey(const char* name, std::uint8_t* key) {
std::uint8_t* DerivePakKey(const char* name, std::uint8_t* key) {
const char* base = name;
const std::size_t length = std::strlen(name);
const char* const end = name + length;

8
Source/Archive/PakCipher.h
View file

@ -19,10 +19,10 @@ namespace myGPack {
};
static_assert(sizeof(PakCipher) == 128);
std::uint8_t* __stdcall DerivePakKey(const char* name, std::uint8_t* key);
int __stdcall InitialPermutation(std::uint8_t* block);
int __stdcall FinalPermutation(std::uint8_t* block);
int __stdcall EncodeBlock(int rounds, const std::uint8_t (*roundKeys)[8], std::uint32_t inputLow, std::uint32_t inputHigh, std::uint8_t* output);
std::uint8_t* DerivePakKey(const char* name, std::uint8_t* key);
int InitialPermutation(std::uint8_t* block);
int FinalPermutation(std::uint8_t* block);
int EncodeBlock(int rounds, const std::uint8_t (*roundKeys)[8], std::uint32_t inputLow, std::uint32_t inputHigh, std::uint8_t* output);
}