Improvement of Efficiency in (Unconditional) Anonymous Transferable E-Cash

  • Sébastien Canard
  • Aline Gouget
  • Jacques Traoré
Conference paper

DOI: 10.1007/978-3-540-85230-8_19

Part of the Lecture Notes in Computer Science book series (LNCS, volume 5143)
Cite this paper as:
Canard S., Gouget A., Traoré J. (2008) Improvement of Efficiency in (Unconditional) Anonymous Transferable E-Cash. In: Tsudik G. (eds) Financial Cryptography and Data Security. FC 2008. Lecture Notes in Computer Science, vol 5143. Springer, Berlin, Heidelberg

Abstract

The practical advantage expected from transferable e-cash compare to non-transferable is the significant reduction of the interaction number between the bank and the users. However, this property is not fulfilled by anonymous transferable e-cash schemes of the state-of-the art. In this paper, we first present a transferable e-cash scheme with a reduced number of communications between the bank and the users that fulfils the computational anonymity property. Next, we present a transferable e-cash scheme with a reduced interaction number that fulfils the unconditional anonymity. This latter scheme is quite less efficient.

Keywords

Electronic cash anonymity transferability 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Sébastien Canard
    • 1
  • Aline Gouget
    • 2
  • Jacques Traoré
    • 1
  1. 1.Orange Labs R&D CaenFrance
  2. 2.GemaltoMeudonFrance

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