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Cryptanalysis on “Secure untraceable off-line electronic cash system”
digital signatures discrete logarithm problem cryptanalysis
2016/1/26
Recently, Baseri et al. proposed a secure untraceable off-line electronic cash
system. They claimed that their scheme could achieve security requirements of an
e-cash system such as, untraceability,...
This paper introduces a new P2P Electronic Cash system called Netcoin. The purpose of Netcoin is to facilitate inexpensive peer-to-peer monetary transactions on the Web. Its salient features are that ...
Recently, Chen et al. and Juang et al. each proposed one and two e-cash payment
systems respectively. They claimed that their schemes are secure. However, in this
paper, we will present the shortcom...
A Universally Composable Scheme for Electronic Cash
Universally Composable Scheme Electronic Cash
2009/3/6
We propose a scheme for electronic cash based on symmetric
primitives. The scheme is secure in the framework for universal compos-
ability assuming the existence of a symmetric CCA2-secure encryptio...
We investigate definitions of security for previously proposed
schemes for electronic cash and strengthen them so that the bank does
need to be trusted to the same extent. We give an experiment-base...