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README.md

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-# aes-encryption
+# AES-256 Encryption System
+
+[![Python Version](https://img.shields.io/badge/python-3.7%2B-blue)](https://www.python.org/)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
 Secure implementation of AES-256 in CBC mode with PKCS7 padding for sensitive data protection.
+
+## Features
+- 🔐 AES-256 encryption/decryption
+- 🔑 Automatic key generation
+- 📦 Base64 encoding for safe data transfer
+- 📝 PKCS7 padding support
+
+## Installation
+```bash
+git clone https://github.com/yourusername/aes-encryption.git
+cd aes-encryption
+pip install -r requirements.txt
+```
+
+## Usage
+```python
+from src.aes_crypto import AESEncryptor
+
+# Initialize with auto-generated key
+encryptor = AESEncryptor()
+
+# Encrypt data
+encrypted = encryptor.encrypt("Secret message")
+
+# Decrypt data
+decrypted = encryptor.decrypt(encrypted)
+```
+
+## Example Output
+```
+Encrypted: MDAwMDAwMDAwMDAwMDAwMOexh1B5jHh6Xj7S...
+Decrypted: Secret message
+```
+
+## Contributing
+Pull requests are welcome. For major changes, please open an issue first.
+
+## License
+[MIT](https://choosealicense.com/licenses/mit/)