<div class="csl-bib-body">
<div class="csl-entry">Scaffino, G., Aumayr, L., Avarikioti, G., & Maffei, M. (2023). Glimpse: On-Demand PoW Light Client with Constant-Size Storage for DeFi. In <i>Proceedings of the 32nd USENIX Security Symposium</i> (pp. 733–750).</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/190025
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dc.description.abstract
Cross-chain communication is instrumental in unleashing the full potential of blockchain technologies, as it allows users and developers to exploit the unique design features and the profit opportunities of different existing blockchains. The majority of interoperability solutions are provided by centralized exchanges and bridge protocols based on a trusted majority, both introducing undesirable trust assumptions compared to native blockchain assets. Hence, increasing attention has been given to decentralized solutions: Light and super-light clients paved the way for chain relays, which allow verifying on a blockchain the state of another blockchain by respectively verifying and storing a linear and logarithmic amount of data. Unfortunately, relays turn out to be inefficient in terms of computational costs, storage, or compatibility.
We introduce Glimpse, an on-demand bridge that leverages a novel on-demand light client construction with only constant on-chain storage, cost, and computational overhead. Glimpse is expressive, enabling a plethora of DeFi and off-chain applications such as lending, pegs, proofs of oracle attestations, and betting hubs. Glimpse also remains compatible with blockchains featuring a limited scripting language such as the Liquid Network (a pegged sidechain of Bitcoin), for which we present a concrete instantiation. We prove Glimpse security in the Universal Composability (UC) framework and further conduct an economic analysis. We evaluate the cost of Glimpse for Bitcoin-like chains: verifying a simple transaction has at most 700 bytes of on-chain overhead, resulting in a one-time fee of $3, only twice as much as a standard Bitcoin transaction.
en
dc.description.sponsorship
CoBloX Pty Ltd.
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dc.description.sponsorship
Europäischer Forschungsrat (ERC)
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dc.description.sponsorship
FWF Fonds zur Förderung der wissenschaftlichen Forschung (FWF)
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dc.description.sponsorship
FWF Fonds zur Förderung der wissenschaftlichen Forschung (FWF)
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dc.description.sponsorship
Christian Doppler Forschungsgesells
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dc.language.iso
en
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dc.subject
Blockchain
en
dc.subject
Cross-chain Communication
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dc.subject
Interoperability
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dc.subject
Distributed ledgers
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dc.subject
DeFi
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dc.subject
Cryptocurrencies
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dc.title
Glimpse: On-Demand PoW Light Client with Constant-Size Storage for DeFi
en
dc.type
Inproceedings
en
dc.type
Konferenzbeitrag
de
dc.relation.isbn
978-1-939133-37-3
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dc.description.startpage
733
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dc.description.endpage
750
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dc.relation.grantno
Funding Agreement coblox
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dc.relation.grantno
771527
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dc.relation.grantno
F 85
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dc.relation.grantno
ESP 68-N
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dc.relation.grantno
CDL-BOT
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dc.type.category
Full-Paper Contribution
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tuw.booktitle
Proceedings of the 32nd USENIX Security Symposium
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tuw.peerreviewed
true
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tuw.project.title
Security and Privacy for the COMIT Network
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tuw.project.title
Foundations and Tools for Client-Side Web Security
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tuw.project.title
Semantische und kryptografische Grundlagen von Informationssicherheit und Datenschutz durch modulares Design
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tuw.project.title
Ein zusammensetzbarer rationaler Rahmen für Blockchains
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tuw.project.title
Blockchaintechnologien für das Internet der Dinge
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tuw.researchTopic.id
I1
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tuw.researchTopic.name
Logic and Computation
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E192-06 - Forschungsbereich Security and Privacy
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dc.description.numberOfPages
18
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tuw.author.orcid
0000-0001-8006-3172
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tuw.event.name
SEC '23: 32nd USENIX Conference on Security Symposium