Part of the Linux Foundation's Decentralized Trust initiative.

Our mission is to make Multi-Party Computation (MPC) and Threshold Signature Schemes (TSS) simple, safe, and accessible for both implementors and end-users.

Modern cryptography, especially in distributed systems, can be notoriously difficult to implement correctly. Lockness provides a suite of robust, audited, and easy-to-use libraries to build and deploy advanced cryptographic protocols.

We focus on creating foundational building blocks that are secure, composable, and developer-friendly.

At the heart of our project is the round-based framework, a novel approach to implementing MPC protocols. It's the foundation upon which our TSS protocols are built. It simplifies development by allowing complex protocols to be expressed as clean async functions.

This design makes protocols:

• ✅ Easy to Implement: Follow a natural, function-like flow.
• 🔍 Easy to Review & Audit: Logic is clear, concise, and self-contained.
• 🛠️ Packed with Utilities: Comes with built-in protocol simulation, an optional synchronous API, and other essential tools to streamline development and testing.

We provide production-ready implementations of state-of-the-art Threshold Signature Schemes (TSS).

A TSS protocol allows a group of parties to generate a shared public key while each party holds only a secret share of the corresponding private key. Signatures are created through a collaborative computation, meaning no single party ever learns the full key. This eliminates single points of failure and dramatically increases security for digital assets.

cggmp21 is our state-of-the-art Threshold ECDSA protocol. Its implementation includes significant performance optimizations, such as using the Chinese Remainder Theorem (CRT) and precomputed multiexponentiation tables.

It features a highly optimized signing phase that completes in a single round if a presignature is generated in advance, making it incredibly fast for frequent operations. This makes it an ideal solution for securing high-value assets by creating distributed wallets for blockchains like Bitcoin and Ethereum.

givre is our implementation of FROST (Flexible Round-Optimized Schnorr Threshold signatures).

It enables threshold signing for Schnorr and EdDSA signatures, which are known for their efficiency and elegant mathematical properties. FROST is a highly efficient and secure protocol, perfect for modern cryptographic systems and privacy-preserving applications.

Our protocols are built on a set of powerful, generic libraries.

• round-based: The core framework for building any round-based MPC protocol.
• generic-ec: A trait-based library that provides a generic API for Elliptic Curve Cryptography, allowing your code to be generic over the choice of curve (e.g., k256, p256).
• udigest: A simple library for creating unambiguous cryptographic digests, helping to prevent collision attacks across different data structures.
• ...and many others that you can explore in our repositories!

The Lockness ecosystem is designed to be open and extensible. Our round-based framework isn't just for our own protocols—it's for the entire community.

Have you designed or implemented your own MPC or TSS protocol? We encourage you to contribute it to Lockness! By joining our organization, your project can benefit from greater visibility, community support, and the credibility of being part of a Linux Foundation initiative.

If you have a protocol you'd like to share, please get in touch with us to discuss how we can work together.

Feel free to reach out to us in #lockness channel in Discord!