Numerical Method for Evaluating E-Cash Security
نویسندگان
چکیده
منابع مشابه
Security Analysis of Offline E-cash Systems with Malicious Insider
When we build electronic cash systems, the main focus of the design is usually on preventing customers’ malicious actions. However, since authorities such as banks and certificate authorities may have important secret data of customers, the insiders in the potentially untrusted authorities can become threats to electronic cash systems. Miyazaki and Sakurai [2] first systematically analyzed secu...
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Compact e-cash schemes allow a user to withdraw a wallet containing k coins in a single operation, each of which the user can spend unlinkably. One big open problem for compact e-cash is to allow multiple denominations of coins to be spent efficiently without executing the spend protocol a number of times. In this paper, we give a (partial) solution to this open problem by introducing two addit...
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Divisible E-cash has been introduced twenty years ago but no construction is both fully secure in the standard model and efficiently scalable. In this paper, we fill this gap by providing an anonymous divisible E-cash construction with constant-time withdrawal and spending protocols. Moreover, the deposit protocol is constant-time for the merchant, whatever the spent value is. It just has to co...
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We introduce a novel conditional e-cash protocol allowing future anonymous cashing of bank-issued e-money only upon the satisfaction of an agreed-upon public condition. Payers are able to remunerate payees for services that depend on future, yet to be determined outcomes of events. Once payment complete, any double-spending attempt by the payer will reveal its identity; no double-spending by th...
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ژورنال
عنوان ژورنال: TELKOMNIKA (Telecommunication Computing Electronics and Control)
سال: 2018
ISSN: 2302-9293,1693-6930
DOI: 10.12928/telkomnika.v16i6.9811