A Distributed Scalable Cross-chain State Channel Scheme Based on Recursive State Synchronization

TL;DR

This paper introduces Interpipe, a distributed cross-chain state channel scheme that enhances scalability and security for large-scale cross-chain transactions through real-time synchronization and recursive SNARK-based verification.

Contribution

It proposes a novel distributed scheme for cross-chain state channels with real-time synchronization and batch verification, eliminating reliance on trusted parties.

Findings

Interpipe achieves near intra-chain efficiency.

The scheme ensures consistency and resistance against attacks.

Experimental results validate scalability and security.

Abstract

As cross-chain technology continues to advance, the scale of cross-chain transactions is experiencing significant expansion. To improve scalability, researchers have turned to the study of cross-chain state channels. However, most of the existing schemes rely on trusted parties to support channel operations. To address this issue, we present Interpipe: a distributed cross-chain state channel scheme. Specifically, we propose a real-time cross-chain synchronization scheme to ensure consistent operations between two blockchains to a cross-chain state channel. Moreover, we propose a batch transaction proof scheme based on recursive SNARK to meet the cross-chain verification needs of large-scale users. Based on the above designs, Interpipe offers protocols for opening, updating, closing, and disputing operations to cross-chain state channels. Security analysis shows that Interpipe has consistency and resistance, and experimental results demonstrate that a cross-chain state channel can be nearly as efficient as an existing intra-chain state channel.