[1] O Mahony, D., M. Peirce, and H. Tewari, Electronic Payment Systems for E-Commerce, Second Edition , Norwood, MA: Artech House, 2001.
[2] Hassler, V., et al., Java Card for E-Payment Applications , Norwood, MA: Artech House, 2002.
[3] Radu, C., Deploying Electronic Payment Systems , Norwood, MA: Artech House, 2002.
[4] Chaum, D., ˜ ˜Blind Signatures for Untraceable Payments, Proceedings of CRYPTO 82, August 1982, pp. 199 “203.
[5] Chaum, D., ˜ ˜Security without Identification: Transaction Systems To Make Big Brother Obsolete, Communications of the ACM , Vol. 28, No. 10, October 1985, pp. 1030 “1044.
[6] Chaum, D., ˜ ˜Achieving Electronic Privacy, Scientific American , August 1992, pp. 96 “101.
[7] Chaum, D., A. Fiat, and M. Naor, ˜ ˜Untraceable Electronic Cash, Proceedings of CRYPTO 88, August 1988, pp. 319 “327.
[8] Chaum, D., and T. Pedersen, ˜ ˜Wallet Databases with Observers, Proceedings of CRYPTO 92, August 1992, pp. 89 “105.
[9] Medvinsky, G., and B. C. Neuman, ˜ ˜NetCash: A Design for Practical Electronic Currency on the Internet, Proceedings of ACM Conference on Computer and Communications Security , 1993.
[10] Cox, B., J. D. Tygar, and M. Sirbu, ˜ ˜NetBill Security and Transaction Protocol, Proceedings of USENIX Workshop on Electronic Commerce , July 1995.
[11] Sirbu, M., and J. D. Tygar, ˜ ˜NetBill: An Internet Commerce System Optimized for Network Delivered Services, IEEE Personal Communications , August 1995, pp. 6 “11.
[12] Neuman, B. C., and G. Medvinsky, ˜ ˜Requirements for Network Payment: The NetCheque Perspective, Proceedings of IEEE Compcon , March 1995.
[13] Neuman, B. C., and G. Medvinsky, ˜ ˜Internet Payment Services, Proceedings of MIT Workshop on Internet Economics , March 1995, pp. 401 “415.
[14] Bellare, M., et al., ˜ ˜iKP ” A Family of Secure Electronic Payment Protocols, Proceedings of USENIX Workshop on Electronic Commerce , July 1995.
[15] Loeb, L., Secure Electronic Transactions: Introduction and Technical Reference , Norwood, MA: Artech House, 1998.
[16] Merkow, M. S., and J. Breithaupt, Building SET Appliactions for Secure Transactions , New York: John Wiley & Sons, 1998.
[17] Manasse, M., ˜ ˜The Millicent Protocols for Electronic Commerce, Proceedings of the 1st USENIX Workshop on Electronic Commerce , July 1995.
[18] Glassman, S., et al., ˜ ˜The Millicent Protocol for Inexpensive Electronic Commerce, Proceedings of 4th International World Wide Web Conference , December 1995, pp. 603 “618.
[19] Furche, A., and G. Wrightson, ˜ ˜SubScrip ” An Efficient Protocol for Pay-Per-View Payments on the Internet, Proceedings of International Conference on Computer, Communications and Networks (ICCCN 96), October 1996, pp. 603 “ 618.
[20] Rivest, R. L., and A. Shamir, ˜ ˜PayWord and MicroMint, RSA Laboratories CryptoBytes , Vol. 2, No. 1, Spring 1996, pp. 7 “11.
[21] Gabber, E., and A. Silberschatz, ˜ ˜Agora: A Minimal Distributed Protocol for Electronic Commerce, Proceedings of the 2nd USENIX Workshop on Electronic Commerce , 1996.
[22] Poutanen, T., H. Hinton, and M. Stumm, ˜ ˜NetCents: A Lightweight Protocol for Secure Micropayments, Proceedings of the 3rd USENIX Workshop on Electronic Commerce , August 1998.