In this work, we present a blockchain-based physical delivery system called Lelantos that within a realistic threat model, offers customer anonymity, fair exchange and merchant-customer unlinkability. Our system is inspired by the onion routing techniques which are used to achieve anonymous message delivery. Additionally, Lelantos relies on the decentralization and pseudonymity of the blockchain to enable pseudonymity that is hard to compromise, and the distributed consensus mechanisms provided by smart contracts to enforce fair irrefutable transactions between distrustful contractual parties.
Category / Keywords: applications / Date: received 24 May 2017 Contact author: r altawy at gmail com Available format(s): PDF | BibTeX Citation Version: 20170528:182036 (All versions of this report) Short URL: ia.cr/2017/465