Transaction-Based Charging in Mnemosyne: A Peer-to-Peer Steganographic Storage System

  • Authors:
  • Timothy Roscoe;Steven Hand

  • Affiliations:
  • -;-

  • Venue:
  • Revised Papers from the NETWORKING 2002 Workshops on Web Engineering and Peer-to-Peer Computing
  • Year:
  • 2002

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Abstract

Mnemosyne is a peer-to-peer steganographic storage system: one in which the existence ofa user's files cannot be verified without a key. This paper applies the techniques used in Mnemosyne - erasure codes and anonymous block writing - to move most ofthe administrative overhead of a commercial storage service over to the client, resulting in cost savings for the service provider.The contribution ofthis paper is to present a radically alternative way of charging for storage services. In place of renting some amount of space for some period of time, systems like Mnemosyne allow more flexible billing models closer to those proposed for network bandwidth, including versions of congestion pricing. We show how a reliable, commercial storage service using is feasible, and examine the details of the tradeoff it offers compared with conventional storage services.