Encryption_System_C-

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Encryption_System_C-

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# Encryption_System_C++ 🤖

A high-impact, interactive File Encryption & Decryption suite built from scratch in C++. Featuring a gamified, high-contrast retro CLI theme using custom UTF-8 unicode wrappers, this terminal utility applies multi-tiered bitwise transformations and custom obfuscation patterns to guard local flat-file storage.

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## 📺 System Preview (معاينة النظام)

![System Preview](https://github.com/ziadnasar6-lgtm/Encryption_System_C-/raw/master/fotos/review.gif)
![system review](https://raw.githubusercontent.com/ziadnasar6-lgtm/Encryption_System_C-/main/fotos/review.gif)
> 💡 **Tip for recording your GIF:** Open your terminal, set it to full screen, and capture yourself choosing Option 1. The visual flow of the retro gaming aesthetic (`👾`) alongside the high-speed file character compilation makes for an outstanding visual repository showcase.

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## 🔒 Cryptographic Architecture & Levels

The system implements security across two distinct layers of complexity:

### 🌟 🤖Level One: Bit-Reversal Transformation
1. **Dynamic Bit-Streaming:** Reads `original.txt` character by character, translating each byte into an 8-bit binary string via standard byte-mapping.
2. **Bit Inversion & Overhaul:** Reverses the positional index of the binary sequence (`std::reverse`).
3. **Destructive Persistence:** Writes the inverted binary chunks space-delimited into `encoded.txt` and systematically truncates (`ios::trunc`) the source file to prevent physical data recovery leaks.

### 🚀 🤖 Level Two: Character Displacement & Obfuscation Padding
1. **ASCII Shift Cipher:** Imports data from the existing `encoded.txt` and performs a constant key shift ($C = P + 5$) on each character code.
2. **Obfuscation Token Injection:** Appends a strict 4-byte custom sequence delimiter (`#%01`) directly after each shifted character block to destroy typical structural pattern distribution analysis.
3. **Final Target:** Persists results natively inside `E_N_Plus.txt`.

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## 📂 File Architecture 🤖

The engine works exclusively within a flat-file database ecosystem structured as follows:

* `original.txt` - The initial source input containing raw target text.
* `encoded.txt` - Intermediary storage for Level One reversed bit-streams.
* `E_N_Plus.txt` - Ultimate repository for Level Two multi-layered obfuscations.
* `pass.dat` - Holds the plain-text verification key used for automated decrypt checking.
* `decoded.txt` - The final production export resulting from valid decryption routines.

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## 🛠️ 🤖 System Requirements & Build Instructions

### Requirements
* **Operating System:** Windows Environment (Requires native `SetConsoleOutputCP` wrappers from `windows.h` to cleanly render UTF-8 emoji streams).
* **Compiler:** Any compiler supporting modern C++11 or higher.

### Compilation
Open your terminal or command prompt and execute the following command:

```bash
g++ -O3 main.cpp -o NassarCrypto.exe

Encryption_System_C-

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