Crypterra

Crypterra is a business-first asset management platform that utilizes the Hyperledger Composer and Fabric frameworks to securely hold assets and records on a decentralized blockchain platform. As an extension of Hyperledger’s enterprise-friendly open-source structure, Crypterra caters to new businesses unfamiliar with blockchain technology by providing them with a convenient and user-friendly data upload system, which supports upload of data from Excel spreadsheets, which is then parsed and added to the Hyperledger network. Additionally, the Crypterra platform creates an account and identity for every company and employee after parsing the information it receives from the excel worksheet. This allows for companies and employees alike to transact amongst 5 currencies (BTC, ETH, CAD, USD, GBP) within the platform and have their balances reflect accordingly.

Setup

Prerequisites

Operating Systems: Ubuntu Linux 14.04 / 16.04 LTS (both 64-bit), or Mac OS 10.12 Docker (Version 17.03 or higher) npm (v5.x) Node (version 8.9 or higher - note version 9 is not supported) and associated modules to install specific Node version you can use nvm Hyperledger Composer

1. Clone the git repository

git clone https://github.com/Deloitte-Case-Competition/Crypterra

2. Setting Up Fabric for the Platform

Remove all pre-existing docker instances

docker kill $(docker ps -q)
docker rm $(docker ps -aq)
docker rmi $(docker images dev-* -q)

Install Fabric scripts which are available in fabric-tools

cd fabric-tools/
./downloadFabric.shc
./startFabric.sh
./createPeerAdminCard.sh

3. Set up the Business Network Archive (.bna file)

Generate BNA file from the root directory

cd ..
npm install

A new file called deloitte-net@0.1.15.bna has been created in the root directory

4. Deploying to Fabric

composer network install --card PeerAdmin@hlfv1 --archiveFile deloitte-net@0.1.15.bna

composer network start --networkName deloitte-net --networkVersion 0.1.15 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card

composer card import --file networkadmin.card

composer network ping --card admin@deloitte-net

5. Run Application

node server.js
npm install  
cd ../angular-app/deloitte-net
npm start

The Node application will be running at localhost:3000 (for data input).

The Angular application will be running at localhost:4200 (for viewing added transactions, participants, and assets)

6. User Interface

Once at the landing page, click ‘Get Started’, and enter company info. For the excel spreadsheets, we’ve provided examples. Use ‘properties.xlsx’ followed by ‘transactions.xlsx’.

6. Stopping the app

At the end of your session, stop fabric:

cd ~/fabric-tools
./stopFabric.sh
./teardownFabric.sh

Authors

• Abhinav Chanda - Blockchain Developer - a5chanda
• Ryan Min - Back-end Developer - ryanmin42
• Meihua LI - Front-end Developer - itsmeihua
• Vishv Patel - Financial Analyst - VishvPatel007
• Niaz Abedini - Business Analyst - nniiaazz