File Encryptor

File Encryptor is a command-line tool written in Go that provides secure file encryption and decryption using either RSA key pairs or password-based encryption.

Features

• Encrypt files using RSA public keys or passwords
• Decrypt files using RSA private keys or passwords
• Hybrid encryption: RSA for key exchange, AES for file content
• Support for both PEM and OpenSSH format keys
• Detailed logging for transparency and debugging

Installation

1. Ensure you have Go installed on your system (version 1.16 or later).
2. Clone this repository:

   git clone https://github.com/yourusername/file-encryptor.git
   

3. Navigate to the project directory:

   cd file-encryptor
   

4. Build the project:

   go build -o file-encryptor
   

Usage

Encryption

To encrypt a file using an RSA public key:

./file-encryptor -e --file <input_file> --key <public_key_file>

To encrypt a file using a password:

./file-encryptor -e --file <input_file> --password <your_password>

Decryption

To decrypt a file using an RSA private key:

./file-encryptor -d --file <encrypted_file> --key <private_key_file>

To decrypt a file using a password:

./file-encryptor -d --file <encrypted_file> --password <your_password>

Security Notes

• Always use strong, unique passwords for password-based encryption.
• Keep your private keys secure and never share them.
• This tool uses AES-256 for file encryption and RSA for key exchange.
• Password-based encryption uses PBKDF2 for key derivation and HMAC for integrity verification.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Disclaimer

This tool is provided as-is, without any warranties. Always ensure you have backups of your important files before encryption.