LELANTOS: A BLOCKCHAIN-BASED ANONYMOUS PHYSICAL DELIVERY SYSTEM

Download here : Lelantos: A Blockchain-based Anonymous Physical Delivery System

Source : https://eprint.iacr.org/2017/465.pdf

Extract from Abstract

Real  world  physical  shopping  offers  customers  the privilege of maintaining their privacy by giving them the option of  using  cash,  and  thus  providing  no  personal  information such  as  their  names  and  home  addresses.  On  the  contrary,electronic  shopping  mandates  the  use  of  all  sorts  of  personally identifiable information for both billing and shipping purposes. Cryptocurrencies  such  as  Bitcoin  have  created  a  stimulated growth  in  private  billing  by  enabling  pseudonymous  payments. However, the anonymous delivery of the purchased physical goods is still an open research problem.

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.

Author Details

Riham AlTawy,Muhammad ElSheikh,Amr M. Youssef and Guang Gong
Electrical and Computer Engineering Department, University of Waterloo, Ontario, Canada.
Concordia Institute for Information Systems Engineering, Concordia University, Quebec, Canada