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Permissionless and Asynchronous Asset Transfer

Abstract : Most modern asset transfer systems use consensus to maintain a totally ordered chain of transactions. It was recently shown that consensus is not always necessary for implementing asset transfer. More efficient, asynchronous solutions can be built using reliable broadcast instead of consensus. This approach has been originally used in the closed (permissioned) setting. In this paper, we extend it to the open (permissionless) environment. We present Pastro, a permissionless and asynchronous asset-transfer implementation, in which quorum systems, traditionally used in reliable broadcast, are replaced with a weighted Proof-of-Stake mechanism. Pastro tolerates a dynamic adversary that is able to adaptively corrupt participants based on the assets owned by them.
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Contributor : Petr Kuznetsov Connect in order to contact the contributor
Submitted on : Monday, February 7, 2022 - 9:54:51 AM
Last modification on : Tuesday, February 22, 2022 - 11:21:46 AM
Long-term archiving on: : Sunday, May 8, 2022 - 6:18:30 PM


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Petr Kuznetsov, Yvonne-Anne Pignolet, Pavel Ponomarev, Andrei Tonkikh. Permissionless and Asynchronous Asset Transfer. DISC, Oct 2021, Strasbourg, France. ⟨10.4230/LIPIcs.DISC.2021.28⟩. ⟨hal-03559627⟩



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