Dynamic Hidden Committee (DHC)

Customizable security guards follow a decentralized signature mechanism to process cross-chain messages

Different from existing cross-chain solutions, Bool Network applies an external verification model to securely process cross-chain messages in a decentralized and distributed manner. Dynamic Hidden Committee (DHC) is proposed to guarantee the security of omnichain applications built on top of it. Each DHC manages a private key in Bool Network and the private key is distributed into key shares and stored in the DHC members, i.e a group of MPC nodes.

DHC follows a decentralized signature scheme which uses its underlying private key to sign cross-chain messages and yield signatures as on-chain verifiable "claims" to indicate the validity of cross-chain messages.

More specifically, each user in Bool Network can deploy his application-specific DHCs to serve his own application's cross-chain bridge. Bool Network has provided a comprehensive interface for its users, i.e. bridge builders, to construct their personal and customizable bridge safeguards (DHC) and on-chain message endpoints (Anchor).

Bool Network Testnet has been launched and developers can follow the guides provided here to build bridges and test their cross-chain applications in EVM ecosystems.