Game of life using Fully homomorphic encryption

A simple implementation of Conway's Game of Life built using Zama's concrete-boolean library.

Build

Just run cargo build --release.

Run

Run ./target/release/homomorphic_game_of_life (or ./target/release/homomorphic_game_of_life.exe on Windows).

What does it do exactly?

This is a very simple implementation of Conway's Game of Life using periodic boundary conditions, with a twist: the board is encrypted using a fully homomorphic encryption scheme (TFHE) and all calculations are performed in encrypted space. In principle, calculations can thus be done by a thread or server which has no access to the state of the board.

Config and initial states

The file Config.csv is read at startup and defines the following parameters (first line of the file):

• the wait time between two updates in microseconds (no effect if much smaller than the time needed to compute one update),
• the pixel size,
• the board dimensions (if no initial state is provided; these two values are currently ignored),
• the background colour in rgb format,
• the foreground color in rgb format.

The file initial_state.csv defines the initial state.