VORTEX: Real-Time Off-Chain Payments and Cross-Chain Swaps for Cryptocurrencies
<|reference_start|>VORTEX: Real-Time Off-Chain Payments and Cross-Chain Swaps for Cryptocurrencies: 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<|reference_end|>
@article{wu2024vortex:,
    title={VORTEX: Real-Time Off-Chain Payments and Cross-Chain Swaps for
  Cryptocurrencies},
    author={Di Wu, Jian Liu, Zhengwei Hou, Wu Wen, Kui Ren},
    journal={arXiv preprint arXiv:2403.15191},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.15191},
    primaryClass={cs.CR cs.DC}
}