LimeDraw is a revolutionary decentralized anonymous lottery app. It prioritizes privacy, transparency, and fairness using Calimero for anonymity and Internet Computer (ICP) for auditable randomness. This eliminates centralized control, creating a trustful, secure, and verifiable lottery system. Users participate anonymously, ensuring fair winner selection and encrypted prize pools.
This repository contains:
- ICP Smart Contracts – Manages lotteries and their state on the Internet Computer blockchain.
- Calimero Private Context – Provides private and secure contexts for individual lotteries.
- Front-End Application – Offers a user-friendly interface for interacting with the lottery system.
git clone https://github.com/iamaa0205/LimeDraw.git
cd LimeDrawchmod +x install_dependencies.sh
./install_dependencies.shRun the given script which will set up local ICP network and deploy the canisters. It also makes a host and deploys the application with the host
cd logic
chmod +x ./script.sh
./script.shRun the script which adds participants to the context. It takes number of participants you want to add as the argument.
chmod +x ./participants.sh
./participants.sh <no-of-partipants>All the data corresponding to the canisters, pub-pvt key pairs of the nodes and application id get stored to ./demo-blockchain-integrations/logic/node_vars.env .
Run the backend node.js server for encryption and decryption of calimero public keys.
cd rsa-encryption-app
node server.js- Encrypted Prize Pools
- Ensuring Winner Anonymity And Secure Ticket Mapping
- Private Chat Rooms for Hosts
- Auditable Random Number Generation For Winner Selection
The video demo of the project can be found here.
This project is made with ❤️ by
- Aaditya Aren
- Dhruv Goyal
- Mradul Singhal