The TNO MPC Lab is a cross-project initiative initiated to improve the overall quality, generality, and reusability in the development of secure Multi-Party Computation (MPC) solutions developed in the numerous (past, ongoing, and future) TNO projects that involve MPC. It consists of generic software components, procedures, and functionalities developed and maintained on a regular basis to facilitate and aid in the development of MPC solutions. The lab strives to boost the development of new protocols and solutions, and decrease time-to-market.


MPC is a subfield of cryptography and an umbrella term consisting of cryptographic techniques that aim to jointly perform computations in a privacy-preserving manner. More precisely, MPC strives to created methods to enable the joint computation of a function over inputs that are distributed among different parties whilst keeping the inputs private. Parties want to ‘learn’ the results of a joint computation without having to share, reveal, or publish, the data that is needed to perform such a computation.

For example, by applying MPC technology, distributed datasets can be securely utilised in the training and evaluation of AI and machine learning models.

Read our latest articles to see what MPC technology we have developed and how we use MPC in our projects.

Open Source

We believe that opening up the mysteries of advanced cryptography benefits society. Conform the Kerckhoff’s principle the security of the developed MPC solutions does not rely on secrecy but on mathematical principles. The TNO MPC Lab supports Kerckhoff’s principle by publishing open source as a way to validate the theoretical/mathematical correctness of cryptographic protocols as well as their implementations.

The published MPC building blocks and complete solutions can be found on GitHub and PyPI. The mostly used license for TNO MPC lab components is the Apache License, Version 2.0. This allows for easy adoption and flexible usage without enforcing a specific license to (end-)users and contributors of the codebase. We are always open to questions on, suggestions for and contributions to our codebase.

Latest in-depth articles

Bundling forces in money laundering detection using MPC

We examined how secured Multi-Party Computation allow banks to bundle forces and to fight money laundering collaboratively.

Person working and coding on a laptop

Privacy Enhancing Technologies in Practice

The big data era brought potential for a data-driven society, and led to a new market for PETs. In this article we explore the Dutch-scene of PETs in practice.

Privacy Enhancing Technologies in Practice

Predicting progression of medical status while preserving privacy

New insights into cancer are needed to help improving care and prevention. This requires broad and rich data, for instance to develop machine-learning models that can evaluate treatment outcomes.


Tool: explore privacy-enhancing technologies together

A public support tool for inspiring and facilitating multidisciplinary teams that are interested in applying PETs to their business challenges.

Multiple hands over each other

Secure and private statistics with distributed Paillier

We recently used distributed Paillier cryptography to do statistics on sensitive data with unparalleled security and privacy-preservation.

Employee measuring a person blood pressure

Identifying high-risk factors for diseases while preserving privacy

Multi-Party Computation (MPC) enables using more data from multiple sources to develop accurate models for health care predictions while preserving privacy.

network of information digital

Advanced data linking without breaching privacy

Linking distributed data while safeguarding privacy. An apparent contradiction. MPC technology shows that it can be done.

lots of paper files

A targeted, yet privacy-friendly approach for battling poverty

Many citizens entitled to AIO provision are not using it. Multi-Party Computation (MPC) enables to proactive reach out to potential customers in a targeted way.

Digital keys facing each other