An Off-line Electronic Cash System Based on Bilinear Pairings
C. Popescu, Horea Oros · 2007
E-cash enables the exchange of digital coins with value assured by the bank's signature and with concealed user identity. Many electronic cash systems have been proposed with the proliferation of the Internet and the activation of electronic commerce. In this paper we propose a secure offline electronic cash system based on bilinear pairings. The security of the new system is under the computational Diffle-Hellman problem in the random oracle model.