This is an implementation of the SAFE protocol without a controller. Instead of sending the messages through a pubsub bus, the messages are sent directly along the chain to public endpoints.
The TLS encryption of http is leveraged for protecting the messages and PKI certs are used for signing payloads.
Install dependencies:
pip3 install -r requirements.txt
Generate initial keys:
./init.sh
Create local data samples, e.g.:
mkdir -p data1 && echo 10 > data1/qos
mkdir -p data2 && echo 30 > data2/qos
mkdir -p data3 && echo 4 > data3/qos
mkdir -p data4 && echo 40 > data4/qos
Configure endpoints. Create a file called config
with first column being the name of the public key file and
second column the endpoint, e.g.:
client1.pub http://localhost:8081
client2.pub http://localhost:8082
client3.pub http://localhost:8083
client4.pub http://localhost:8084
Each participant will run a endpint service with
./dsa x
where x is 1-4 and represents the client id or index on the SAFE chain.
To start an aggregation run:
./agg metric
where metric can be any local data in the data directory (qos in
the example above).
The output will show which clients responded, at least three non-initiators need to respond as well as the initiator for the aggregation to be successful.
The final aggregate is verified to cryptographically prove that the participant submitted values for the aggregation requested.