SciTransfer
TALER · Project

Privacy-First Digital Payment System for Secure and Transparent E-commerce Transactions

digitalMarket-readyTRL 9

Imagine a digital wallet that works exactly like cash; the shop doesn't know who you are, but the government can still verify the shop is paying its taxes. It removes the middleman's ability to spy on your shopping habits while ensuring the seller gets their money instantly. It's basically a digital version of an anonymous banknote that is impossible to fake.

By the numbers
11
Total deliverables
9
Target TRL level
The business problem

What needed solving

Current digital payments often force a choice between total surveillance of consumer habits or a lack of transparency for tax authorities. Merchants also face high transaction fees and risks of fake payment methods.

The solution

What was built

A secure, open-source electronic payment system (GNU Taler) that provides buyer privacy and seller transparency. It includes software compatible with Windows, MacOS, and Linux.

Audience

Who needs this

Retail banksIndependent book publisherse-Health providersOpen-source software developersOnline retailers
Business applications

Who can put this to work

Publishing and Journalism
SME
Target: Independent book publishers

If you are an independent publisher dealing with high subscription fees or intrusive ad models — this project developed GNU Taler that allows you to sell books and content via micro-payments with very low overhead.

Healthcare
any
Target: e-Health service providers

If you are an e-Health provider dealing with sensitive patient data and payment privacy — this project developed a payment system that guarantees the privacy of the payer during transactions.

Software Development
SME
Target: FLOSS (Free and Libre Open Source Software) projects

If you are a software developer dealing with fragmented donation systems — this project developed a secure payment tool for donations and pledges within the ICT supply chain.

Frequently asked

Quick answers

How does this affect transaction costs and pricing?

The system uses efficient and scalable computations that allow banks to pass on lower transaction costs to both consumers and merchants.

Can this be scaled for wide industrial use?

Yes, the project aims to bring the technology to TRL 9 by making it available through retail banks such as GLS and MAGNET Bank.

What is the IP and licensing model?

The system is based on open standards and free software, specifically developed by the GNU community and Taler Systems SA.

How does it handle tax and legal compliance?

It provides privacy for the buyer but enforces transparency on sellers, allowing States to ensure businesses are held accountable for income and taxes.

How is the software integrated into existing systems?

The project integrates GNU Taler into various business workflows through open calls and ensures compatibility with Windows, MacOS, and GNU/Linux.

Consortium

Who built it

The consortium is well-balanced for commercialization, consisting of 11 partners across 8 countries. With a 45% industry ratio and 4 SMEs, the group combines academic research from 2 universities with practical market deployment capabilities, specifically targeting the financial sector via retail banks.

How to reach the team

Contact the Technical University of Eindhoven (TU/e) regarding the GNU Taler rollout.

Next steps

Talk to the team behind this work.

Contact us to identify integration partners for privacy-preserving payment systems.