Deep dives into MPC wallet security, distributed key generation, and building secure Web3 applications.
A practical guide to backing up your DefiShard wallet, restoring on a new device, and security best practices — plus a look under the hood at the KEK/DEK encryption architecture that protects your backup files.
How we designed and built a real-time WebSocket relay server for MPC threshold signing — one that routes encrypted messages between devices while being mathematically unable to learn anything about the keys, signatures, or transactions passing through it.
A deep technical walkthrough of the cryptographic primitives powering DefiShard — from elliptic curve fundamentals through Shamir's Secret Sharing to a full 2-of-2 threshold ECDSA implementation where the private key never exists.
A comprehensive technical exploration of DefiShard's three-component MPC architecture — browser extension, mobile authenticator, and relay server — and why your private key should never exist.
An honest technical comparison of wallet security architectures — hot wallets, hardware wallets, multi-sig, cloud MPC, and device-based MPC — with real tradeoffs, attack surface analysis, and where each approach wins and loses.
Learn how Multi-Party Computation (MPC) eliminates single points of failure in crypto wallet security by ensuring your private key never exists in complete form.