Software Defined Quantum Stream-Cipher for GNU Radio

The module implements the protocol originally described in: 

M. Barbeau, "Software Defined Quantum Stream-Cipher," GNU Radio Conference, Washington, DC (USA), August 2015.

See: http://people.scs.carleton.ca/~barbeau/Publications/2015/GNURadio_2015.pdf

Copyright 2017 Michel Barbeau, Carleton University.

Version: March 4, 2017

Installing

git clone https://github.com/michelbarbeau/gr-quantomm

Building

cd gr-quantomm

mkdir build

cd build

cmake ../
 
make

sudo make install

sudo ldconfig

Running

To run within gnuradio-companion

Open the flow graph  gr-quantomm/examples/simulation.grc.

To run outside gnuradio-companion

cd gr-quantomm/examples

python top_block.py

EXAMPLE

$ python top_block.py
encoder.work():len(input_items[0]): 4
encoder.work():bases: [0 0 1 0 1 1 0 1] angles: [ 90 135  90  45  45  90  45 135]
encoder.work():len(input_items[0]): 1
decoder.work():feedback: [0, 0, 1, 0, 0, 0, 1, 0]
encoder.work():bases: [1 0] angles: [90  0]
encoder.handle_msg():feedback: [0L, 0L, 1L, 0L, 0L, 0L, 1L, 0L]
encoder.handle_msg():plain text: [0, 1] cipher text: [1, 0]
decoder.work():feedback: [0, 0]
decoder.handle_msg():plain text: [0L, 1L] cipher text: [1L, 0L]
* MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 2
contents = 
0000: 00 01 
***********************************

Work in Progress

An implementation using laser, optical hardware and mini computers is being completed. Watch the following youtube video demo.

Details will be published soon.