Secular

A decentralized blockchain-based data privacy-preserving platform

Introduction

Secular aims to provide a secure private platform where parties (i.e. OEMs) can upload their data, and on the other side, a program for data processing can be provided to process on pieces of data based on their RBAC; guaranteeing data integrity and privacy by using a private blockchain and IPFS networks. The data provider gives access to a certain user(s) via Smart Contracts; where only authorized users are process on this piece of data without compromising or exposing the data.

Use Case: Machine Learning Model Training

1. Model creators can upload their models for training, as well as providing the required data by the data provider.

2. The data provider gives access to a certain user(s) via Smart Contracts; where only authorized users are allowed to train their models on this piece of data.

3. After the model is validated and whitelisted for network and I/O usage, the model node retrieves the data to start training; and self-destruct itself after the training phase is completed.

4. At the end, model creator has the model results to be downloaded and statistical charts presented on a dashboard. While the data provider has a dashboard showing which model is trained on his data and what are the model results.

Getting Started

Environment Setup

Update apt package index

sudo apt-get update

Install newer versions of packages

sudo apt-get upgrade -y

Allow apt to use a repository over HTTPS

sudo apt-get install apt-transport-https ca-certificates curl software-properties-common -y

Install NodeJS and npm

curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt-get install -y nodejs

Add Docker official GPG key

sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Setup Docker stable repository

sudo add-apt-repository  "deb [arch=amd64] https://download.docker.com/linux/ubuntu  $(lsb_release -cs) stable"

Setup Go Repository

sudo add-apt-repository ppa:longsleep/golang-backports -y

Update apt package index

sudo apt-get update

Install Docker Engine

sudo apt-get -y install docker-ce

Install Go

sudo apt-get install golang-go -y

Download Docker Compose

sudo curl -L https://github.com/docker/compose/releases/download/1.24.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

Apply executable permissions to the binary

sudo chmod +x /usr/local/bin/docker-compose

Install Truffle

sudo npm i -g truffle

Install IPFS

Get ipfs-update

sudo wget https://dist.ipfs.io/ipfs-update/v1.5.2/ipfs-update_v1.5.2_linux-amd64.tar.gz

unzip ipfs-update

sudo tar -xvf ipfs-update_v1.5.2_linux-amd64.tar.gz

install ipfs-update

sudo ./ipfs-update/install.sh

install ipfs latest

sudo /usr/local/bin/ipfs-update/ipfs-update install latest
sudo nano /etc/systemd/system/ipfs.service

Add ipfs.service

[Unit]
Description=IPFS Daemon
After=syslog.target network.target remote-fs.target nss-lookup.target

[Service]
Type=simple
ExecStart=/usr/local/bin/ipfs daemon --enable-namesys-pubsub
User=root

[Install]
WantedBy=multi-user.target

Enable the service

sudo systemctl daemon-reload
sudo systemctl enable ipfs
sudo systemctl start ipfs
sudo systemctl status ipfs

Build and Test

IPFS

• Switch to root

  su
  

• Initialize IPFS Nodes

  ipfs init
  

• Check IPFS Node Config

  ipfs config show
  

• Remove Public Bootstrap Nodes

  ipfs bootstrap rm --all
  

• Change Gateway and API IPs

  ipfs config Addresses.Gateway /ip4/0.0.0.0/tcp/8080
  ipfs config Addresses.API /ip4/0.0.0.0/tcp/5001
  

• Export LIBP2P

  export LIBP2P_FORCE_PNET=1
  

• Connect the Nodes with Each Other

  • Bring Nodes Online

    systemctl restart ipfs
    systemctl status ipfs
    

  • At Node 1

    ipfs id
    

  • At Node 2

    ipfs bootstrap add :id
    

  • Test the Connection

    ipfs swarm peers
    

• Upload File From Node 1

  echo "Distributed file on Private Network" > test.priv
  ipfs add test.priv
  

Quorum Network

sudo QUORUM_CONSENSUS=raft docker-compose up -d

Compile and Migrate Smart Contracts to Quorum Network

sudo truffle compile --reset
sudo truffle migrate --network development

Invoke Smart Contract Functions

sudo truffle console --network development

RBAC.at('0x9d13C6D3aFE1721BEef56B55D303B09E021E27ab').then(function(instance) {return instance.addDataProvider('0xcE69AFd3b1738B2faF87F713473E75B11d5933B1', 'QmThk5n3hLfY1GWiAXcj9VFJ37h8Bsx4xXXbwrKxHQddtY', 'QmeomffUNfmQy76CQGy9NdmqEnnHU9soCexBnGU3ezPHVH', ['0xb6F8625ee20e6Ed6313393C733859eb006DF86dc'], 100, 3000, ['Title', 'Model', 'Estimated Price', 'Available Colors', 'Release Date']);})

RBAC.at('0x9d13C6D3aFE1721BEef56B55D303B09E021E27ab').then(function(instance) {return instance.isAuthorizedUser('QmThk5n3hLfY1GWiAXcj9VFJ37h8Bsx4xXXbwrKxHQddtY', '0xb6F8625ee20e6Ed6313393C733859eb006DF86dc', 1, 14, 'height');}) --> false

RBAC.at('0x9d13C6D3aFE1721BEef56B55D303B09E021E27ab').then(function(instance) {return instance.isAuthorizedUser('QmThk5n3hLfY1GWiAXcj9VFJ37h8Bsx4xXXbwrKxHQddtY', '0xb6F8625ee20e6Ed6313393C733859eb006DF86dc', 200, 300, 'height');}) --> false

RBAC.at('0x9d13C6D3aFE1721BEef56B55D303B09E021E27ab').then(function(instance) {return instance.isAuthorizedUser('QmThk5n3hLfY1GWiAXcj9VFJ37h8Bsx4xXXbwrKxHQddtY', '0xb6F8625ee20e6Ed6313393C733859eb006DF86dc', 200, 300, 'Title');}) -- > true