An Offline Electronic Payment System Based on an Untraceable Blind Signature Scheme = An Offline Electronic Payment System Based on an Untraceable Blind Signature Scheme

다국어 초록 (Multilingual Abstract)

This paper proposes a new offline electronic payment (e-payment) system that satisfies the major security requirements of e-payment, i.e. anonymity, unlinkability, unforgeability, double spending control, conditional traceability, and fraud prevention. The central idea is the use of Hwang et al.`s RSA-based untraceable blind signature (BS), which disables the link between the e-coin and its owner and ensures the anonymity of both the customer and the merchant. It attaches an expiration, a deposit and the transaction dates to each e-coin in order to manage the database of the bank effectively, to correctly calculate the interest on the e-coin and to aid arbitration if a dishonest customer attempts to double-spend the coin. It also ensures the anonymity of the customer as long as the coin is spent legitimately. Only when a fraudulent e-coin transaction is detected can the bank, with the help of the central authority (a trusted entity), determine the identity of the dishonest customer. The system is referred to as offline since the bank does not need to be concurrently involved in transactions between a customer and a merchant. Finally, analyses of the performance of the prototype and the primary security requirements of the proposed system are also presented.

참고문헌 (Reference)

• 1 I. Miers, "Zerocoin: Anonymous Distributed E-Cash from Bitcoin" 397-411, 2013
• 2 C. Fan, "User efficient recoverable offline e-cash scheme with fast anonymity revoking" 58 : 227-237, 2013
• 3 S. Brands, "Untraceable offline cash in wallet with observers" Springer 302-318, 1994
• 4 D. Chaum, "Untraceable electronic cash" Springer-Verlag 319-327, 1990
• 5 F. Wang, "Security Analysis on Secure Untraceable Offline Electronic Cash System" 18 (18): 454-458, 2016
• 6 Y. Baseri, "Secure untraceable offline electronic cash system" 20 (20): 637-646, 2013
• 7 Y. Chen, "On the privacy of user efficient recoverable offline e-cash scheme with fast anonymity revoking" 17 (17): 708-711, 2015
• 8 R. Martínez-Peláez, "New electronic cash model: a script anonym" 392-396, 2006
• 9 T. Granlund, "GNU Multiple Precision Arithmetic Library (GMP)"
• 10 F. Stalder, "Failures and successes: Notes on the development of electronic cash" 18 (18): 209-219, 2002
• 11 F. Stalder, "Failures and successes: Notes on the development of electronic cash" 18 (18): 209-219, 2002
• 12 W. Juang, "D-cash: a flexible pre-paid e-cash scheme for date-attachment" 6 (6): 74-80, 2007
• 13 Y. Chen, "Cryptanalysis on secure untraceable offline electronic cash system" 63 : 2014
• 14 D. Chaum, "Blind signatures for untraceable payments" 199-203, 1982
• 15 B. Schneier, "Applied Cryptography" John Wiley 2008
• 16 R. Sai Anand, "An online, transferable e-cash payment system" 93-103, 2000
• 17 Z. Tan, "An offline electronic cash scheme based on proxy blind signature" 54 (54): 505-512, 2011
• 18 M. S. Hwang, "An Untraceable Blinded Signature Scheme" E86-A (E86-A): 1902-1906, 2003
• 19 Z. Eslami, "A new untraceable offline electronic cash system" 10 (10): 59-66, 2011
• 20 H. Oros, "A Secure and Efficient Offline Electronic Payment System for Wireless Networks" 5 (5): 551-557, 2010