Fold

Custom binary encoding using a 67 byte charset
Padding is enabled by default and decode is not supported without it just yet.

The encoding can be keyed so that only the holder of the key can unlock the encoding. Binary keys are supported.

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Usage:

from Fold import Fold
Fold().encode(data)
Fold().decode(data)

The cubesend and cuberecv methods can be used to securely transmit messages to and from a server. They cubesend method generates a one time use 16 character key, encrypts it with the session key and then encrypts the payload with the one time key. The cubeconnect method must be called first before using cubesend or cuberecv.

The cubeconnect utilizes a pre-shared key to exchange a random 16 character session key with the server and then proceeds using the session key.

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With keys:

Fold(key).encode(data)
Fold(key.decode(data)

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Example encoding

We hold these truths to be self-evident, that all men are created equal
VYZaI=a=beb=Z=I=d=a=ZacfZaI=d=ceded=a=cfI=d=beI=YaZaI=cfZab=ZbLMZadfabZ=Zabdd=L=I=d=a=YZd=I=YZb=b=I=bcZabdI=YZceZaI=YbceZaYZd=ZaZ=I=ZacddeYZb=

Prerequisites

pycube90

Client Example

key = "Test"
sock = CubeSocket(key)
sock.cubeconnect("localhost", 99)
sock.cubesend("Test")
sock.close()

Server Example

host = "localhost"
port = 99
sock = CubeSocket("Test")
sock.bind(host, 99)
sock.listen(1)
client, addr = sock.accept()
cubesock = CubeSocket(client, sock.key)
test = cubesock.sock.cuberecv(32)
print test
c.close()
sock.close()

CubeWrap Example

cubesock = CubeSocket(sock, key)
test = cubesock.sock.recv(32)

UDP client example

from CubeSocket import CubeSocket

host = "localhost"
port = 1666

socket = CubeSocket("NEVER")
socket.cubesendto("HELLO", host, port)

UDP Server example

from CubeSocket import CubeSocket

host = "localhost"
port = 1666

socket = CubeSocket("NEVER")
socket.bind(host, port)
while True:
data = socket.cuberecvfrom(1024)
print data

Server/Client communication using session key

host = "localhost" sock = CubeSocket("Test", dc=0) sock.bind(host, 99) sock.listen(1) client, addr = sock.accept() cubesock = CubeSocket(client, sock.session_key) test = cubesock.cubesock.cuberecv(32) print test c.close() sock.close()

key = "Test" sock = CubeSocket(key, dc=0) sock.cubeconnect("localhost", 99) sock.cubesend("Test") sock.close()

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