Shard

Cregis utilizes advanced MPC (Multi-Party Computation) shard technology to enhance the security of private keys by dividing them into multiple shards. In a single-signature wallet, these MPC shards are securely stored across both the local device and a Trusted Execution Environment (TEE), ensuring that no single entity holds the complete key. For multi-signature wallets, the shards are distributed across different local devices, further enhancing security by decentralizing control. Each time a transaction is made, the MPC shards are computed in various locations and combined with those stored in the cloud, ensuring a highly secure and efficient signing process.