Efficient E-cash with Attributes on MULTOS Smartcards

被引：4
作者：
Hinterwaelder, Gesine [1 ]
Riek, Felix [1 ]
Paar, Christof [1 ]
机构：
[1] Ruhr Univ Bochum, Horst Gortz Inst IT Secur, Bochum, Germany
来源：
RADIO FREQUENCY IDENTIFICATION: SECURITY AND PRIVACY ISSUES, RFIDSEC 2015 | 2015年 / 9440卷
关键词：
Privacy-preserving payment schemes; E-cash; Elliptic curve cryptography; MULTOS smartcards;
D O I：
10.1007/978-3-319-24837-0_9
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Ever since its invention in the 1980s, e-cash has been considered a promising solution for privacy-preserving electronic payments. However, the computational capabilities, required for the processing of e-cash protocols, are demanding. Only recent works show the feasibility of implementing e-cash on constrained platforms. A particularly challenging, while at the same time extremely attractive platform, are smartcards. Smartcards are, next to magnetic stripe cards, the dominant platform used to execute electronic payments, and they enjoy wide user acceptance. In this paper we present an implementation of two e-cash schemes on MULTOS smartcards. We base the schemes on elliptic curve cryptography, which is supported by the API of the platform of choice. Our results are promising: When relying on a 160-bit elliptic curve, spending a coin, which encodes two attributes that are not revealed, can be executed in less than 800 ms with both considered schemes.
引用
收藏
页码：141 / 155
页数：15
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