osscs 0.0.9

Open-source crypto-secure communication system

OSSCS

This is small messanger base.

It is:

• open source
• crypto secure
• peer to peer
• end to end encrypted

Installing

pip install osscs

Usage

import threading

from osscs.backend.client import MessageSender
from osscs.backend.server import MessageListener
from osscs.backend.core import SocketSender, SocketListener
from osscs.backend.storage import IPv4Address
from osscs.backend.models import Message, MessagePreparer, User
from osscs.cryptography.core import SignatureFabric, Encryptor, KeyLoader, Decryptor, SignatureVerifier
from osscs.types import BaseAddress


password = '12345'

addr = IPv4Address('127.0.0.1', 12012)

key_loader = KeyLoader()

decryptor = Decryptor(key_loader, key_loader.generate_private_key(), password)
encryptor = Encryptor(key_loader, decryptor.public_key())

signature_fabric = SignatureFabric(encryptor, decryptor)
signature_verifier = SignatureVerifier(encryptor, key_loader)


message_preparer = MessagePreparer(encryptor, decryptor, signature_fabric)
message_sender = MessageSender(SocketSender())
message_listener = MessageListener(SocketListener())

def on_message(message: Message, address: BaseAddress) -> None:
    user = 'Anonim'
    if message.signature and signature_verifier(message.signature):
        user = User(Encryptor(key_loader, key_loader.get_rsa_public_key(message.signature.public_key)))
    print(f'{user}[{address.data()}]: {decryptor.decrypt(message.text)}')

threading.Thread(
    target=message_listener.listen_on,
    args=[addr, on_message]
).start()

message = Message(text=b'Hello world')
message_preparer.encrypt(message, User(encryptor))
message_preparer.sign(message)

message_sender.send(
    message,
    addr
)

Documentation in DOC.py