Update readme with new features

AutoKeyboxDecoder/Readme.md

@@ -2,7 +2,8 @@
 
 A Python tool that attempts to decrypt **LG firmware / keybox / encrypted blobs** by automatically testing known AES keys and AES modes.
 
-The script downloads multiple public key lists and tries them using several AES modes and IV strategies.
+The script downloads multiple public key lists, merges them, and stores them locally in **keys.txt**.  
+Keys are refreshed **once per day** unless forced.
 
 If a valid payload is found, the decrypted payload is extracted and saved.
 
@@ -11,9 +12,11 @@ If a valid payload is found, the decrypted payload is extracted and saved.
 # ✨ Features
 
 * 🔑 Automatically downloads known AES keys from multiple sources
+* 💾 Saves keys locally to **keys.txt**
+* 🔄 Key lists update **once per day**
+* ⚡ `--force-update-keys` option to refresh keys immediately
 * 🧠 Supports **AES-128 / AES-192 / AES-256**
 * 🔍 Tests multiple AES modes automatically
-* ⚡ Fast key testing
 * 🧩 Supports **custom user-provided AES keys**
 * 📦 Extracts valid payload automatically
 * 📁 Supports custom output directories
@@ -28,14 +31,35 @@ By default the script downloads keys from:
 
 https://raw.githubusercontent.com/openlgtv/epk2extract/refs/heads/master/keys/AES.key
 
-### 2️⃣ DRMLAB's KnownKeys ( please contribute and add more working keys to extract keyboxes )
+### 2️⃣ DRMLAB KnownKeys
 
-https://git.drmlab.io/SuperUserek/MyDRMTools/AutoKeyboxDecoder/KnownKeys.txt
+(please contribute and add more working keys)
+
+https://git.drmlab.io/SuperUserek/MyDRMTools/raw/branch/main/AutoKeyboxDecoder/KnownKeys.txt
 
 These lists contain AES keys used in various LG firmware and DRM systems.
 
 ---
 
+# 🔑 Key Cache (keys.txt)
+
+Downloaded keys are stored locally in:
+
+```
+keys.txt
+```
+
+Behavior:
+
+| Condition | Action |
+|--------|--------|
+| first run | downloads keys |
+| same day | uses cached keys |
+| next day | automatically refreshes keys |
+| `--force-update-keys` | forces immediate refresh |
+
+---
+
 # ⚙️ Requirements
 
 Python **3.8+**
@@ -58,10 +82,21 @@ python3 autokeybox_decoder.py keybox_file.dat
 
 The script will:
 
-1. Download key lists
+1. Download key lists (if cache is outdated)
-2. Parse AES keys
+2. Save them to **keys.txt**
-3. Try AES modes automatically
+3. Parse AES keys
-4. Save the decrypted payload if successful
+4. Try AES modes automatically
+5. Save the decrypted payload if successful
+
+---
+
+# 🔄 Force Update Key Lists
+
+Force re-download and rebuild the key cache:
+
+```bash
+python3 autokeybox_decoder.py keybox_file.dat --force-update-keys
+```
 
 ---
 
@@ -76,7 +111,7 @@ python3 autokeybox_decoder.py keybox_file.dat --key 00112233445566778899AABBCCDD
 Supported key sizes:
 
 | AES Type | Hex Length |
-| -------- | ---------- |
+|--------|--------|
 | AES-128 | 32 |
 | AES-192 | 48 |
 | AES-256 | 64 |
@@ -85,7 +120,7 @@ Supported key sizes:
 
 # 🔒 Only Use Custom Key
 
-Skip downloading key lists:
+Skip downloading key lists and only try your key:
 
 ```bash
 python3 autokeybox_decoder.py keybox_file.dat \
@@ -221,3 +256,9 @@ This tool is intended for:
 * reverse engineering
 
 Use responsibly and only on data you are authorized to analyze.
+
+---
+
+# 👨‍💻 Author
+
+**SuperUserek**