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Counting Down Thunder: Timing Attacks on Privacy in Payment Channel Networks
[article]
2020
arXiv
pre-print
The Lightning Network is a scaling solution for Bitcoin that promises to enable rapid and private payment processing. In Lightning, multi-hop payments are secured by utilizing Hashed Time-Locked Contracts (HTLCs) and encrypted on the network layer by an onion routing scheme to avoid information leakage to intermediate nodes. In this work, we however show that the privacy guarantees of the Lightning Network may be subverted by an on-path adversary conducting timing attacks on the HTLC state
arXiv:2006.12143v1
fatcat:35qivm6m6radlp52oqw27llpf4