Update README.md

Author: 0xBl4nk

README.md

@@ -1 +1,49 @@
-# jwt-hammer
+# JWTHammer
+
+A lightweight, CPU-based JWT signature brute force tool written in Go.
+
+## Overview
+
+JWTHammer provides an alternative to GPU-based tools like Hashcat for cracking JWT signatures. It's designed to be simple, efficient, and work on systems without dedicated graphics hardware.
+
+## Features
+
+- Pure CPU implementation - no GPU required
+- Multithreaded design for better performance
+- Support for HMAC-SHA256 signatures (HS256)
+- Simple command-line interface
+- Memory-efficient wordlist processing
+
+## Installation
+
+```bash
+# Clone the repository
+git clone https://github.com/yourusername/jwthammer
+cd jwthammer
+
+# Build the binary
+go build -o jwthammer
+
+# Or run directly
+go run main.go <jwt_token> <wordlist_file>
+```
+
+## Usage
+
+```bash
+./jwthammer <jwt_token> <wordlist_file>
+```
+
+### Example
+
+```bash
+./jwthammer "<full-token>" rockyou.txt
+```
+
+## Performance
+
+Performance depends on your CPU and the size of your wordlist. JWTHammer automatically uses multiple workers to utilize available CPU cores.
+
+## Disclaimer
+
+This tool is intended for security testing and educational purposes only. Always obtain proper authorization before testing security on any system you don't own.