Meiklejohn, S;
Mercer, R;
(2018)
Möbius: Trustless Tumbling for Transaction Privacy.
UCL Department of Computer Science: London, UK.
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Abstract
Cryptocurrencies allow users to securely transfer money without relying on a trusted intermediary, and the transparency of their underlying ledgers also enables public verifiability. This openness, however, comes at a cost to privacy, as even though the pseudonyms users go by are not linked to their real-world identities, all movement of money among these pseudonyms is traceable. In this paper, we present M¨obius, an Ethereum-based tumbler or mixing service. M¨obius achieves strong notions of anonymity, as even malicious senders cannot identify which pseudonyms belong to the recipients to whom they sent money, and is able to resist denial-of-service attacks. It also achieves a much lower off-chain communication complexity than all existing tumblers, with senders and recipients needing to send only two initial messages in order to engage in an arbitrary number of transactions.
| Type: | Working / discussion paper |
|---|---|
| Title: | Möbius: Trustless Tumbling for Transaction Privacy |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://www.ucl.ac.uk/computer-science/ |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. // This is the full version of an extended abstract published in PETS 2018, also available in UCL Discovery at: https://discovery.ucl.ac.uk/id/eprint/10046841/. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10055890 |
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