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Achieving Optimal Anonymity in Transferable E-Cash with a Judge [chapter]

Olivier Blazy, Sébastien Canard, Georg Fuchsbauer, Aline Gouget, Hervé Sibert, Jacques Traoré
2011 Lecture Notes in Computer Science  
Electronic cash (e-cash) refers to money exchanged electronically. The main features of traditional cash are usually considered desirable also in the context of e-cash.  ...  This paper proposes the first efficient and secure transferable e-cash scheme with the strongest achievable anonymity properties, introduced by Canard and Gouget.  ...  The desired security properties for e-cash are today well-known and for transferable e-cash systems anonymity is a particularly delicate issue. Anonymity properties in transferable e-cash.  ... 
doi:10.1007/978-3-642-21969-6_13 fatcat:2pxdvgikrbev3gwdzq2ucvcqzy

Anonymous Transferable E-Cash [chapter]

Foteini Baldimtsi, Melissa Chase, Georg Fuchsbauer, Markulf Kohlweiss
2015 Lecture Notes in Computer Science  
Cryptographic e-cash allows off-line electronic transactions between a bank, users and merchants in a secure and anonymous fashion.  ...  A plethora of e-cash constructions has been proposed in the literature; however, these traditional e-cash schemes only allow coins to be transferred once between users and merchants.  ...  Anonymity for transferable e-cash has been a pretty subtle notion to define. In 2008 Canard and Gouget [CG08] gave the first formal treatment of anonymity properties for transferable e-cash.  ... 
doi:10.1007/978-3-662-46447-2_5 fatcat:jg7wdpw2cffjlfvjni3btxv5oy

Anonymity in Transferable E-cash [chapter]

Sébastien Canard, Aline Gouget
Applied Cryptography and Network Security  
Regular cash systems provide both the anonymity of users and the transferability of coins. In this paper, we study the anonymity properties of transferable e-cash.  ...  Next, we define two restricted perfect anonymity properties and we prove that it is possible to design a transferable e-cash scheme where a bounded adversary not playing the bank cannot recognize a coin  ...  We are grateful to Marc Girault, Pascal Paillier and Jacques Traoré for their suggestions of improvement, and to anonymous referees for their valuable comments.  ... 
doi:10.1007/978-3-540-68914-0_13 dblp:conf/acns/CanardG08 fatcat:sv47qyzxpbfqnivp3x5falj4sy

Improvement of Efficiency in (Unconditional) Anonymous Transferable E-Cash [chapter]

Sébastien Canard, Aline Gouget, Jacques Traoré
Lecture Notes in Computer Science  
In this paper, we first present a transferable e-cash scheme with a reduced number of communications between the bank and the users that fulfils the computational anonymity property.  ...  However, this property is not fulfilled by anonymous transferable e-cash schemes of the state-of-the art.  ...  Next, van Antwerpen [15] proposed a method for transferring e-cash which was later sketched in [6] . This transferable e-cash scheme fulfils the user anonymity.  ... 
doi:10.1007/978-3-540-85230-8_19 fatcat:qigd5o266reonm4rfexy5jbfke

Anonymous Transferable Conditional E-cash [chapter]

Jiangxiao Zhang, Zhoujun Li, Hua Guo
2013 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
We present the first anonymous transferable conditional e-cash system based on two recent cryptographic primitives, i.e., the Groth-Sahai(GS) proofs system and the commuting signatures, thus the unlinkability  ...  Comparing the existing conditional e-cash, the size of the computation and communication of our scheme is constant.  ...  [13] proposed an anonymous transferable e-cash system, and analyzed the anonymity [6] in transferred e-cash. To solve the problem about the size of the e-cash system, Fuchsbauer et al.  ... 
doi:10.1007/978-3-642-36883-7_4 fatcat:n6mq7d4ttfhgth62jnrxdq4khm

Recent Advances in Electronic Cash Design [chapter]

Aline Gouget
2008 Lecture Notes in Computer Science  
In particular, e-cash and other payment solutions should protect the privacy of users during a purchase.  ...  In this talk, we will review the main recent results and also discuss the possibility to transfer a coin without involving the bank which is considered as an important characteristic of regular cash.  ...  E-cash should provide user anonymity against both the bank and the merchant during a purchase in order to emulate the perceived anonymity of regular cash transaction.  ... 
doi:10.1007/978-3-540-85893-5_22 fatcat:icn6a47o5rbjlhjckni6vo3mf4

Conditional e-payments with transferability

Bogdan Carbunar, Weidong (Larry) Shi, Radu Sion
2011 Journal of Parallel and Distributed Computing  
We introduce a novel conditional e-cash protocol allowing future anonymous cashing of bank-issued e-money only upon the satisfaction of an agreedupon public condition.  ...  The flow of cash within the system is thus both correct and anonymous.  ...  To transfer the e-cash to D, C now sends {R l , v, token C R }. D then forwards these values anonymously to B.  ... 
doi:10.1016/j.jpdc.2010.07.004 fatcat:5cmo6r4fp5g7rnnarrnwda4r7m

Simple and Transparent E-Cash System with Observers

Eligijus Sakalauskas, Inga Timofejeva, Aleksėjus Michalkovič, Jonas Muleravičius
2018 Information Technology and Control  
major flaw of most divisible, anonymous, off-line and transferable e-cash systems.  ...  A simple mobile e-cash system with observers satisfying e-cash divisibility, partial anonymity, off-line payment, transferability and double-spending prevention requirements is presented.  ...  In [2] , Baldimtsi et al. presented an efficient and fully anonymous transferable e-cash scheme without trusted third parties.  ... 
doi:10.5755/j01.itc.47.1.18021 fatcat:ktbud2zaf5cctpwu3vaoywvrli

Conditional E-Cash [chapter]

Larry Shi, Bogdan Carbunar, Radu Sion
2007 Lecture Notes in Computer Science  
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.  ...  The flow of cash within the system is thus both correct and anonymous.  ...  The second additional stage generates the anonymous e-cash the payee will spend then in person.  ... 
doi:10.1007/978-3-540-77366-5_3 fatcat:qksoj3uzkrhadl2ytqotpjgebi

A Study of Anonymous Purchasing Based on Mobile Payment System

Jieling Wu, Chenglian Liu, Donald Gardner
2016 Procedia Computer Science  
Anonymous purchasing" has been in use for about a decade.  ...  This anonymity in purchasing is increasingly being demanded by more people.  ...  Acknowledgments The authors would like to thank the anonymous reviewers for their useful comments. This work is partially supported from Huizhou University project under the number HZUX1201418.  ... 
doi:10.1016/j.procs.2016.04.152 fatcat:5wxpkz7cn5eutotrb4m6kyng4a

Security Analysis of Offline E-cash Systems with Malicious Insider

Takashi Nishide, Shingo Miyazaki, Kouichi Sakurai
2012 Journal of Wireless Mobile Networks, Ubiquitous Computing, and Dependable Applications  
In this paper, we reconsider the security of offline anonymous electronic cash systems including more recent systems based on the classification of Miyazaki and Sakurai and investigate the possible effective  ...  Miyazaki and Sakurai [2] first systematically analyzed security of offline anonymous electronic cash systems by considering the insider threats from untrusted authorities.  ...  [12] III Bank No Transferable e-cash w/ unconditional anonymity CG08 [11] III Bank No Transferable e-cash w/ full/perfect anonymity CG10 [13] III Bank No Multiple denominations in e-cash  ... 
doi:10.22667/jowua.2012.03.31.055 dblp:journals/jowua/NishideMS12 fatcat:aoe3offbtre2ngif4h3vspzyha

Anonymous E Cash Transaction is using Bitcoin

Sanket Subhash Mane
2020 Zenodo  
Sanket Subhash Mane "Anonymous E-Cash Transaction is using Bitcoin" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-3 , April  ...  Here even have quicker and minimum fees to transfer e cash. Exploitation Bitcoin all the transaction cryptograpically secured.  ...  studies in Bitcoin-like E-cash systems.  ... 
doi:10.5281/zenodo.3892343 fatcat:r2gpk4yrr5byppf6nommuszmui

Distributed architectures for electronic cash schemes: a survey1

Isabelle Simplot-Ryl, Issa Traoré, Patricia Everaere
2009 International Journal of Parallel, Emergent and Distributed Systems  
In light of such discussion, we make some recommendations for designing effective distributed e-cash systems from an architectural perspective.  ...  In this paper, through a survey of the literature, we identify and analyze the different distributed architectural styles underlying existing e-cash schemes.  ...  For e-cash to reach that level of acceptability, it must exhibit at least all the key characteristics of physical cash such as anonymity, transferability, and security.  ... 
doi:10.1080/17445760802441671 fatcat:6cjxbs7eh5b2ra2dertvdnvqtq

OPERA: A Complete Offline and Anonymous Digital Cash Transaction System with a One-Time Readable Memory

Ki-Woong PARK, Sung Hoon BAEK
2017 IEICE transactions on information and systems  
of digital cash; user anonymity; atomic cash transfer for double spending/depositing protection.  ...  However, offline peerto-peer cash transactions still make up about 25.6% of the overall financial transactions in everyday life.  ...  As shown in Fig. 1 (a) , anybody can send and receive cash anonymously without the involvement of a third party.  ... 
doi:10.1587/transinf.2016inp0008 fatcat:w6gim4xopzgabbivguf62on36a

A Secure E-Cash Transfer System Based on the Elliptic Curve Discrete Logarithm Problem

Constantin Popescu
2011 Informatica  
One of the technological innovations in banking, finance and e-commerce is the electronic cash (e-cash) transfer system.  ...  In this paper we propose a secure e-cash transfer system based on the elliptic curve cryptography.  ...  We would like to thank the anonymous reviewers for their helpful comments in improving our manuscript.  ... 
doi:10.15388/informatica.2011.333 fatcat:yjxxy33zarfj5elxj7v2mfuv5a
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