xx
This module explains how Distributed Key Generation (DKG) lets a group create a shared private key without trusting any single member. Starting from Shamir’s Secret Sharing, we moved to Feldman’s VSS for share verification, and finally to Pedersen’s DKG, which removes the need for a trusted dealer. DKG is key to secure threshold cryptography, used in MPC wallets, threshold signatures, and blockchain validators.
Q1: What is the main purpose of Distributed Key Generation (DKG)?
A1: To generate a shared private key without any single party knowing it
Q2: What problem does Feldman’s Verifiable Secret Sharing solve?
A2: A dealer might give out inconsistent or invalid shares
Q3: In Shamir’s Secret Sharing, what is required to reconstruct the secret?
A3: A threshold number of shares (t of n)
Q4: Which of the following is a key benefit of DKG in cryptographic systems?
A4: Eliminating single points of failure
