A novel privacy protection method of residents’ travel trajectories based on Federated Blockchain and InterPlanetary File System in Smart City

We provide two folders, the specific project contents are located in the RTT folder, and the Installation tools contain the installation packages we need.

Preliminary Preparation

• Interplanetary File System (IPFS)

• Hyperledger Fabric

• Docker

• Docker Compose

• Node.js

• NPM

• NVM

We have provided download packages for IPFS and NVM in the installation tools folder, and the rest are available for download at the following addresses

Docker and Docker Compose

Project website: https://docs.docker.com/install/linux/docker-ce/ubuntu/ (Docker)
Project website: https://docs.docker.com/compose/install/ (Docker Compose)

Node.js, NPM

Project website: https://nodejs.org/en/ (Node.js)
Project website: https://www.npmjs.com/ (NPM)

Hyperledger Fabric

Project website: https://www.hyperledger.org/projects/fabric

（The version of Hyperledger Fabric used is 1.4.0）

Running the project

• Initiating network deployment chain code

  Start Network

  Install the chain code: copy the chain code into the peer node This is executed in the project directory

  Install the chain code on the peer node

  Instantiate the chain code on the peer node

./byfn.sh up

docker cp -a PTTChaincodes/ cli:/opt/gopath/src/github.com/hyperledger/fabric/peer

docker exec -it cli peer chaincode install -l "node" -n airmed -p /opt/gopath/src/github.com/hyperledger/fabric/peer/PTTChaincodes/chaincode -v v1

docker exec -it cli peer chaincode instantiate -C mychannel -l "node" -n airmed -v v1 -c '{"Args":[]}' -o orderer.example.com:7050 --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem

• Start Datastore

docker-compose up

• The command to empty the original database containes

docker-compose down -v

• Start ipfs

ipfs daemon &

• Run the process

./init.sh

• Test tools

  Tape Installation and Deployment: https://github.com/Hyperledger-TWGC/tape

  Caliper Installation and Deployment: https://hyperledger.github.io/caliper/v0.5.0/fabric-tutorial/tutorials-fabric-existing/