fcryptor

fcryptor is a command-line utility for encrypting and decrypting files and directories using AES-256 encryption. It ensures data confidentiality by encrypting file contents into a secure SQLite database. The utility is designed for performance and scalability, leveraging multiprocessing to handle large files efficiently.

Installation

curl -sSL https://raw.githubusercontent.com/BytesVault/fcryptor/refs/heads/master/fcryptor-install.sh | sh -

Features

• AES-256 Encryption: Secure encryption with randomly generated IVs for every operation.
• Chunked Processing: Handles large files efficiently by splitting them into chunks.
• SQLite Storage: Stores encrypted data in a database for ease of management.
• Parallel Processing: Utilizes multiple CPU cores for encryption and decryption tasks.
• File and Directory Support: Encrypt or decrypt individual files or entire directories.
• Metadata Preservation: Maintains file structure during decryption.

Usage

Encrypt Files or Directories

Encrypt a file or directory into a secure .fc database:

fcryptor --encrypt --file <file_path> --key <encryption_key>

fcryptor --encrypt --directory <directory_path> --key <encryption_key>

If the --key option is not provided, the utility will prompt you to enter the encryption key interactively.

Decrypt Encrypted Data

Decrypt an .fc database to restore the original files or directories:

fcryptor --decrypt --file <encrypted_database_path> --key <decryption_key>

The decrypted files will be restored to the current working directory.

Additional Options

• --key: Specify the encryption or decryption key. If omitted, the utility will prompt for it interactively.
• --file: Specify the file to encrypt or decrypt.
• --directory: Specify the directory to encrypt. This option is not used during decryption.

Examples

Encrypt a File

fcryptor --encrypt --file my_document.txt --key MySecureKey

This command will create an encrypted .fc file containing the encrypted contents of my_document.txt.

Encrypt a Directory

fcryptor --encrypt --directory my_folder --key MySecureKey

This command will create an encrypted .fc file containing the encrypted contents of all files within my_folder.

Decrypt a File

fcryptor --decrypt --file my_folder.fc --key MySecureKey

This command will restore the original files from the my_folder.fc database.

Requirements

• Python 3.6+
• cryptography library
• sqlite3 library (included in Python)

License

fcryptor is open-source software licensed under the MIT License.

Contributing

Contributions are welcome! Feel free to open issues or submit pull requests.

Disclaimer

This utility is provided "as-is" without warranty of any kind. Use at your own risk. Always back up your data before encryption.