VORTEX: High-Speed and Low-Latency Off-Chain Payments and Cross-Chain Swaps for Cryptocurrencies
arxiv(2024)
摘要
In this paper, we present VERTEX, a TEE-based layer-2 solution that tackles
two crucial challenges in the realm of cryptocurrencies: off-chain payments and
cross-chain swaps. It offers three notable features: - Channel-free off-chain
payments: it allows a payer to make direct payments to anyone without requiring
any on-chain relationship or intermediary channels. - Real-time yet
decentralized cross-chain swaps: it is the first known solution that enables
real-time cross-chain swaps without relying on a central server. This novel
feature is made possible through a ground-breaking fair exchange protocol. -
TEE crash-tolerance: it offers two solutions to handle TEE crashes, one of
which involves an innovative application of time-lock puzzles in this context.
We evaluate ECHO on a network consists of 1000 nodes and the evaluation results
show that ECHO can achieve 7000 TPS
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