How much is ZeroLeak?

ZeroLeak is listed for sale at $100 USD.

ZeroLeak - Sell Project

Name: ZeroLeak
Price: 100 USD
Availability: InStock

Listed March 11, 2026

About ZeroLeak

Zero-trust blockchain system preventing exam paper leaks with timelocks.

ZeroLeak is a military-grade, zero-trust decentralized exam paper distribution system designed to eliminate question paper leaks and insider threats. The system uses client-side encryption, Shamir’s Secret Sharing (SSS), and Ethereum smart contract timelocks to ensure exam papers remain completely unreadable until the exact exam time. Papers are encrypted using AES-256-GCM, while the encryption key is protected through a distributed cryptographic trust model. The master key is split into multiple shards using SSS, preventing any single entity from reconstructing the key prematurely. Encrypted data is stored on IPFS, and the unlock time is enforced by an immutable blockchain smart contract. At the scheduled exam time, exam centers automatically reconstruct the keys, decrypt the paper, and print it instantly. This architecture ensures that no teacher, authority, or administrator can access the paper before the scheduled time, making the system highly resistant to leaks. Key Features Zero-trust architecture Blockchain-enforced timelocks Shamir’s Secret Sharing key distribution Client-side encryption & memory purge Decentralized storage via IPFS

Project details

Built with: JavaScript,Solidity,HTML,CSS

Website: https://github.com/atharvabaodhankar/ZeroLeak

Video 1: https://dms.licdn.com/playlist/vid/v2/D4D05AQEaPBD4E8YClQ/mp4-720p-30fp-crf28/B4DZw2z8BeKwCE-/0/1770446130022?e=1773806400&v=beta&t=7yDo2Rtyoz09sTb9esGrby79CJu8gcN9gQgGF5haa1M

Next step: <p>The buyer can extend ZeroLeak into a production-grade platform for universities, examination boards, and government exam authorities. Future improvements could include multi-authority key distribution, integration with institutional exam systems, automated exam center access portals, and deployment on a production blockchain network.</p>

For sale

Asking price: $100 USD

What's included

All related design work, All related data, Source code

Reason for selling

I built ZeroLeak as a technical research project to explore secure exam distribution using blockchain and modern cryptography. I’m now looking to pass it to someone who can further develop and deploy it at scale while I continue working on new projects.

Project metrics

Average Monthly Revenue: Pre-revenue