Show HN: Building Production MPC Wallets: Architecture and Solana Implementation

Category: infrastructure

Tags: mpc-wallet, threshold-signature, frost, solana, dkg

Score: 6.5/10 (Innovation: 6, Technical: 7, Documentation: 7, Utility: 6)

This project implements a 2-of-3 threshold signature wallet using the FROST-Ed25519 protocol for Solana, featuring distributed key generation (DKG), secure ceremony coordination over REST/WebSocket, and age-encrypted keystores. It is interesting because it provides a practical, well-documented MPC wallet implementation that avoids vulnerable legacy protocols like GG18/GG20, and includes an untrusted coordinator model that runs all cryptographic verification on the participants.

Target audience: backend devs, blockchain engineers, security engineers

Repository: https://nethsara.substack.com/p/byowbuild-your-own-wallet-a-field · Rust · 5 stars

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