Seregon/ShadPKG

A tool for deriving PKG packet encryption keys for ps4 written in c++

C++/47.3 KB/No license
core/file_format/rif_generator.h
raw
ShadPKG / core / file_format / rif_generator.h
1// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
2// SPDX-License-Identifier: GPL-2.0-or-later
3 
4#pragma once
5 
6#include <array>
7#include <filesystem>
8#include <string>
9#include <vector>
10#include "common/shadpkg_types.h"
11 
12class RIFGenerator {
13public:
14 RIFGenerator();
15 ~RIFGenerator();
16 
17 // Valida il formato del Content ID
18 static bool ValidateContentID(const std::string& content_id);
19 
20 // Genera un file RIF per un Content ID specifico
21 bool GenerateRIF(const std::string& content_id, const std::filesystem::path& output_path);
22 
23 // Genera un timestamp deterministico basato sul Content ID
24 static u32 GenerateTimestamp(const std::string& content_id);
25 
26 // Genera il contenuto del file RIF
27 static std::vector<u8> GenerateRIFContent(const std::string& content_id);
28 
29 // Verifica se un file RIF è valido
30 static bool ValidateRIF(const std::filesystem::path& rif_path);
31 
32private:
33 // Costanti per la struttura RIF
34 static constexpr u32 RIF_SIZE = 1024;
35 static constexpr std::array<u8, 4> RIF_MAGIC = {0x52, 0x49, 0x46, 0x00}; // "RIF\0"
36 static constexpr std::array<u8, 2> RIF_VERSION = {0x00, 0x01};
37 static constexpr std::array<u8, 2> RIF_UNKNOWN = {0xFF, 0xFF};
38
39 // Offset per i vari campi nel file RIF
40 static constexpr u32 MAGIC_OFFSET = 0x00;
41 static constexpr u32 VERSION_OFFSET = 0x04;
42 static constexpr u32 UNKNOWN_OFFSET = 0x06;
43 static constexpr u32 PADDING_OFFSET = 0x08;
44 static constexpr u32 TIMESTAMP_OFFSET = 0x10;
45 static constexpr u32 CONTENT_ID_OFFSET = 0x40;
46};