local_file_transfer

This project allows users to transfer multiple files across devices in a local network. It uses a 128-bit pre-shared key for AES-CBC encryption. (Sequence diagram created with mermaid)

Versions

Tested with:

• Python 3.9.5
• pycryptodome 3.10.1
• Ubuntu 20.04.2 and Windows 10

Requirements

• pycryptodome: pip install pycryptodome

Usage

Receiver

The receiver is waiting for incoming connections. The receiver script must be started first. The received files are stored in a directory called "received_files" located in the current directory.

$ python file_transfer_receive.py [-p PORT] [-k KEY]

optional arguments:
  -p, --port PORT                  Port on which the receiver is listening. Default: 6000
  -k, --key KEY                    Set a new key. Provide 16 characters (no backslash) as the string will be utf-8 encoded. Default key provided in the script.

Sender

The sender has to provide the IP-address or the hostname of the receiver. The sender is able to select multiple files via the tkinter.filedialog interface.

$ python file_transfer_send.py [-n HOSTNAME] [-a ADDRESS] [-p PORT] [-k KEY]

optional arguments:
  -n, --name HOSTNAME              Hostname of receiver
  -a, --address ADDRESS            IP-Address of receiver
  -p, --port PORT                  Port on which the receiver is listening. Default: 6000
  -k, --key KEY                    Set a new key. Provide 16 characters (no backslash) as the string will be utf-8 encoded. Default key provided in the script.