This package implements a 4-party vector multiplication as an example of Helium's usage. It contains a Go application that starts an app over a node configured with a 4-nodes session. The go application takes the node id and private input from the command line arguments. The private input is a single unsigned integer value that is copied n times to produce a vector input of size n. It outputs the computation result, the component-wise product of the private vectors, on stdout.

To build the example using Docker (requires no Go installation), navigate to this directory and run:

make docker

Then, to run the nodes:

docker compose up

To build the example using Go, navigate to this directory and run:

make build

This compiles an executable vec-mul in the directory. Run ./vec-mul for the usage.