dc.contributor.authorHou, Xiaosongen_US
dc.date.accessioned2008-09-17T09:50:25Z
dc.date.accessioned2017-07-23T08:31:48Z
dc.date.available2008-09-17T09:50:25Z
dc.date.available2017-07-23T08:31:48Z
dc.date.copyright2006en_US
dc.date.issued2006
dc.identifier.citationHou, X. (2006). Electronic cash analysis on fair traceability, double spending prevention and model simplification. Master’s thesis, Nanyang Technological University, Singapore.
dc.identifier.urihttp://hdl.handle.net/10356/4382
dc.description.abstractElectronic cash is an electronic payment system which enables secure payment transactions without revealing customers' identity. This thesis starts with an overview of the concepts related to electronic payment, especially electronic cash, discussing its transactions and state-of-the-art techniques. Then, after an overview of electronic cash, I will analyze several electronic cash schemes against potential attacks. In this thesis, I will propose O-Cash, the fair traceable electronic cash in wallet with observers, which supports coin tracing and owner tracing as well as self-deanonymization. This scheme achieves prior restraint of double-spending using observers, detection of double-spender's identity using cryptographic methods in case observers are broken, and fair tracing in case crimes take place. Then, I will further propose a new electronic cash model SignCash, where electronic coins are generated by customers instead of banks. This model offers unique tradeoff between credit card systems and conventional off-line electronic cash systems, and provides anonymity to customers and higher security level than credit card systems. In addition, it enables customers to generate electronic coins which are authorized by the bank, and is more convenient for customers to use. Last but not least, I will compare the proposed electronic cash system with VisaCash and eNETS, and discuss the implementation aspects.en_US
dc.rightsNanyang Technological Universityen_US
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Electronic systems
dc.titleElectronic cash analysis on fair traceability, double spending prevention and model simplificationen_US
dc.typeThesisen_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.supervisorTan Chik How
dc.contributor.supervisorHabib Mir M. Hosseinien_US
dc.description.degreeMASTER OF ENGINEERING (EEE)en_US


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