---
title: "Safeheron has officially open-sourced its C++-based Lindell 17 MPC protocol."
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/269977202.md"
description: "Safeheron has open-sourced its C++ implementation of the Lindell 17 two-party MPC threshold ECDSA protocol. This protocol is designed for 2-of-n collaborative signature scenarios, offering higher efficiency and lower latency. It supports standard elliptic curves and includes security hardening measures. The code is available on GitHub."
datetime: "2025-12-17T08:00:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/269977202.md)
  - [en](https://longbridge.com/en/news/269977202.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/269977202.md)
---

# Safeheron has officially open-sourced its C++-based Lindell 17 MPC protocol.

Today, Safeheron announced the open-sourcing of its C++ implementation of a Lindell 17 two-party MPC (2PC) threshold ECDSA protocol. Designed specifically for 2-of-n collaborative signature scenarios, this protocol offers higher efficiency and lower signature latency in a client-side + server-side architecture compared to general threshold schemes. This open-source implementation fully covers the key generation and signature process, natively supports standard elliptic curves such as secp256k1, and incorporates security hardening measures against known implementation-level attacks. Safeheron aims to uphold its "transparency equals security" philosophy through continuous open-sourcing, providing developers with representative code references and enriching the MPC technology ecosystem. The code is now available on GitHub.

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