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MPCMulti-Party Computation (MPC) is a cryptographic technology that allows multiple parties to jointly perform computations without revealing their private inputs. In digital asset custody, it eliminates the single point of failure found in traditional wallets, which rely on a single private key stored in one location. Instead, MPC ensures the complete private key never exists in one place, not during generation, storage, or transaction signing. This combines distributed security with the usability of a standard wallet, making MPC the preferred approach for institutional-grade custody.
Three Shards, Three ServersMPC divides the private key into three cryptographic shards distributed across three independent servers. Every transaction requires all three shards to participate in the signing process (3-of-3 threshold). As a result, no single server, or any two servers together, can authorize a transaction. All three servers must be available and participate for a transaction to be signed.
Exchange-Grade Protection on Every NodeEach server is protected using exchange-grade security standards. Because the complete private key never exists in storage or during transaction signing, it is inherently resistant to theft, loss, and compromise.