Threshold Signature Scheme (TSS)
A Threshold Signature Scheme lets a defined threshold of participants cooperate to create one valid digital signature.
✦ Key Insight
It is widely used in MPC custody and wallet systems to reduce single-point key compromise.
✕ Common Misconceptions
TSS security depends on the exact protocol, implementation, participant independence, and recovery process.
Detailed Explanation
In Practice
Dig Deeper
Private Key
A private key is a secret cryptographic code that proves ownership of crypto assets and allows the holder to authorize transactions.
Multisig Wallet
A multisig (multi-signature) wallet is a smart-contract or script-based wallet that requires multiple independent signatures to authorize a transaction — for example, 2-of-3 or 3-of-5 — instead of a single private key.
Signature
A cryptographic signature proves that the holder of a private key authorized specific data without revealing the private key itself.
MPC Wallet
An MPC wallet uses multi-party computation so signing authority is divided among multiple parties or devices without reconstructing one full private key in a single place.