What is an MPC Wallet?
MPC (Multi-Party Computation) wallets use cryptographic techniques to split private key control across multiple parties. No single party ever holds the complete key, yet transactions can still be authorized.
How MPC Works
- Private key is mathematically split into shares
- Each party holds one share
- Threshold of parties required to sign (e.g., 2-of-3)
- Key shares never combined; signing happens distributedly
Advantages Over Multi-Sig
- No on-chain footprint: Looks like regular transaction
- Flexible policies: Easy to change signers
- Cross-chain: Works across all blockchains
- Key refresh: Can rotate key shares without changing address