Security Layer

The Security Layer of the BitAcross Network is a critical component designed to safeguard the network and its transactions, operating under the consensus of the Zero-Knowledge (ZK) network. This layer is pivotal in maintaining the integrity and security of the protocol, especially for Bitcoin-based assets like BRC-20 tokens. Here are the key aspects of the Security Layer:

  • Composition of TEE Enclaves: The Security Layer is composed of Trusted Execution Environment (TEE) enclaves. TEEs are specialized secure areas of a processor that provide an isolated execution environment. They ensure that the code and data loaded inside the enclave are protected with respect to confidentiality and integrity.

  • Storage of Sealed Information: One of the primary functions of the TEE enclaves in the Security Layer is to securely store sealed information. This includes sensitive data that needs protection from external threats and unauthorized access, ensuring that only authenticated and authorized entities can access or modify it.

  • Consensus Requirement for Logic Updates: Any updates to the logic or protocols within the TEE enclaves require a consensus from all the TEE enclaves within the network. This mechanism ensures that no single enclave can unilaterally make changes, thereby maintaining a decentralized control structure. This requirement for a unanimous consensus enhances the security and stability of the protocol.

  • Decentralized Operation and Maintenance: The TEE enclaves are operated and maintained in a decentralized manner. This decentralization is further strengthened as the maintenance responsibility is distributed among leading industrial projects. This approach ensures that no single entity or party has complete control over the Security Layer, mitigating the risks associated with centralization.

  • Authority for Authorizing Key Generation: In cases where the logic needs to be updated, the authority to generate an authorization key is vested in the collective consensus of the TEE enclaves. This process requires coordination and agreement among all enclaves, ensuring that any changes to the system are thoroughly vetted and agreed upon by the network.

The Security Layer's design in the BitAcross protocol plays a vital role in ensuring the robustness and resilience of cross-chain transactions. By leveraging the advanced capabilities of TEE enclaves and maintaining a decentralized governance structure, the Security Layer provides a solid foundation for secure and efficient blockchain interoperability.