Automated Gateways: A Smart Contract-Powered Solution for Interoperability Across Blockchains
Koosha Esmaeilzadeh Khorasani, Sara Rouhani, Rui Pan, Vahid Pourheidari
TL;DR
Automated Gateways address blockchain interoperability by embedding fine-grained access control and cross-chain data/service sharing directly into host blockchains via policy smart contracts and a networked relay. The system combines Decentralization, Transparency, and Self-reliance with a two-component architecture: Policy Management for on-chain authorization and Communication Management for cross-chain messaging using gRPC. Implementation on Hyperledger Fabric with a Go-based relay demonstrates scalable performance, achieving high concurrent throughput with low latency in production-like settings. The work suggests practical impact by reducing external dependencies and enabling broader adoption, with future work exploring atomic swaps and multi-chain token transfers.
Abstract
Interoperability is a significant challenge in blockchain technology, hindering seamless data and service sharing across diverse blockchain networks. This study introduces Automated Gateways as a novel framework leveraging smart contracts to facilitate interoperability. Unlike existing solutions, which often require adopting new technologies or relying on external services, Automated Gateways framework is integrated directly with a blockchain's core infrastructure to enhance systems with built-in interoperability features. By implementing fine-grained access control mechanisms, smart contracts within this framework manage accessibility and authorization for cross-chain interactions and facilitate streamlining the selective sharing of services between blockchains. Our evaluation demonstrates the framework's capability to handle cross-chain interactions efficiently, significantly reduce operational complexities, and uphold transactional integrity and security across different blockchain networks. With its focus on user-friendliness, self-managed permissions, and independence from external platforms, this framework is designed to achieve broader adoption within the blockchain community.
