Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1995-11-29
1998-03-03
Cam, David C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 30, 364401, 34082533, 902 2, 902 24, H04K 100
Patent
active
057244243
ABSTRACT:
A complete system for the purchasing of goods or information over a computer network is presented. Merchant computers on the network maintain databases of digital advertisements that are accessed by buyer computers. In response to user inquiries, buyer computers retrieve and display digital advertisements from merchant computers. A digital advertisement can further include a program that is interpreted by a buyer's computer. The buyer computers include a means for a user to purchase the product described by a digital advertisement. If a user has not specified a means of payment at the time of purchase, it can be requested after a purchase transaction is initiated. A network payment system performs payment order authorization in a network with untrusted switching, transmission, and host components. Payment orders are backed by accounts in an external financial system network, and the payment system obtains account authorizations from this external network in real-time. Payment orders are signed with authenticators that can be based on any combination of a secret function of the payment order parameters, a single-use transaction identifier, or a specified network address.
REFERENCES:
patent: 4305059 (1981-12-01), Benton
patent: 4578530 (1986-03-01), Zeidler
patent: 4734858 (1988-03-01), Schlafly
patent: 4755940 (1988-07-01), Brachtl et al.
patent: 4775935 (1988-10-01), Yourick
patent: 4795890 (1989-01-01), Goldman
patent: 4799156 (1989-01-01), Shavit et al.
patent: 4812628 (1989-03-01), Boston et al.
patent: 4827508 (1989-05-01), Shear
patent: 4922521 (1990-05-01), Krikke et al.
patent: 4935870 (1990-06-01), Burk, Jr. et al.
patent: 4947028 (1990-08-01), Gorog
patent: 4977595 (1990-12-01), Ohta et al.
patent: 4982346 (1991-01-01), Girouard et al.
patent: 4992940 (1991-02-01), Dworkin
patent: 5025373 (1991-06-01), Keyser, Jr. et al.
patent: 5060153 (1991-10-01), Nakagawa
patent: 5077607 (1991-12-01), Johnson et al.
patent: 5220501 (1993-06-01), Lawlor
patent: 5247575 (1993-09-01), Sprague et al.
patent: 5305195 (1994-04-01), Murphy
patent: 5311594 (1994-05-01), Penzias
patent: 5321751 (1994-06-01), Ray et al.
patent: 5336870 (1994-08-01), Hughes
patent: 5341429 (1994-08-01), Stringer et al.
patent: 5347632 (1994-09-01), Filepp et al.
patent: 5351186 (1994-09-01), Bullock et al.
patent: 5351293 (1994-09-01), Michener
patent: 5383113 (1995-01-01), Kight et al.
patent: 5414833 (1995-05-01), Hershey et al.
patent: 5557518 (1996-09-01), Rosen
patent: 5590197 (1996-12-01), Chen et al.
patent: 5596642 (1997-01-01), Davis et al.
patent: 5596643 (1997-01-01), Davis et al.
patent: 5604802 (1997-02-01), Holloway
patent: 5621797 (1997-04-01), Rosen
patent: 5623547 (1997-04-01), Jones et al.
patent: 5642419 (1997-06-01), Rosen
Lampson, Butler; Abadi, Martin; Burrows, Michael; and Wobber, Edward; "Authentication in Distributed Systems: Theory and Practice"; ACM Transactions on Computer Systems; vol. 10, No. 4; Nov., 1992; pp. 265-310.
Needham, Roger M. and Schroeder, Michael D.; "Using Encryption for Authentication in Large Networks of Computers"; Communications of the ACM; vol. 21, No. 12; Dec., 1978; pp. 993-999.
Rivest, R.L. et al., "A Method for Obtaining Digital Signatures and Public-Key Cryptosystems," Laboratory for Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts.
Rivest, R.; "The MD5 Message-Digest Algorithm"; MIT Laboratory for Computer Science and RSA Data Security, Inc.; Apr., 1992.
Voydock, Victor et al.; "Security Mechanisms in High-Level Network Protocols"; Computing Surveys; vol. 15, No. 2; Jun. 1981.
Needham, Roger M.; "Adding Capability Access to Conventional File Servers"; Xerox Palo Alto Research Center; Palo Alto, California.
Gligor, Virgil D. et al.; "Object Migration and Authentication"; IEEE Transactions on Software Engineering; vol. SE-5, No. 6; Nov., 1979.
Chaum, D.L. et al.; "Implementing Capability-Based Protection Using Encryption"; Electronics Research Laboratory, College of Engineering, University of California, Berkeley, California; Jul. 17, 1978.
Gifford, David K.; "Cryptographic Sealing for Information Secrecy and Authentication"; Stanford University and Xerox Palo Alto Research Center; Communication of the ACM; vol. 25, No. 4; Apr., 1982.
Gifford, David K.; "Digital Active Advertising"; U.S. Patent Application Serial No. 08/168,519; filed Dec. 16, 1993.
Tenenbaum, Jay M. and Schiffman, Allan M.; "Development of Network Infrastructure and Services for Rapid Acquisition"; adapted from a white paper submitted to DARPA by MCC in collaboration with EIT and ISI.
Harty et al., "Case Study: The VISA Transaction Processing System," 1988.
Abadi, M., et al, "Authentication and Delegation with Smart-cards", Oct. 22, 1990, revised Jul. 30, 1992 Report 67, Systems Research Center, Digital Equipment Corp., Palo Alto, California.
Information Network Institute, Carnegie Mellon University, Internet Billing Server, Prototype Scope Document, Oct. 14, 1993.
Krajewski, M., "Concept for a Smart Card Kerberos", 15th National Computer Security Conference, Oct. 1992.
Krajewski, M., "Smart Card Augmentation of Kerberos, Privacy and Security Research Group Workshop on Network and Distributed System Security", Feb. 1993.
Krajewski, M. et al, "Applicability of Smart Cards to Network User Authentication", Computing Systems, vol. 7, No. 1, 1994.
Bellcore Internal E-Mail, Nov. 24, 1993.
Marvin A. Sirbu; Internet Billing Service Design And Prototype Implementation; pp. 1-19; An Internet Billing Server.
United States; publication; pp. 215-135.
National Westminster Bank Group Brochure; pp. 1-29; undated.
Even et al; "Electronic Wallet";, pp. 383-386;1983.
Okamoto et al; "Universal Electronic Cash", pp. 324-337; 1991.
Pfitzmann et al; "How to Break and Repair a Provably Secure Untraceable Payment System"; pp. 338-350; 1991.
Intuit Corp. Quicken User's Guide, "Paying Bills Electronically", pp. 171-192; undated.
CompuServe Information Service Users Guide, CompuServe International, 1986, pp. 109-114.
Gifford, D., "Notes on Community Information Systems", MIT LCS TM-419, Dec. 1989.
Vittal, J., "Active Message Processing: Message as Messengers", pp. 175-195; 1981.
Bos et al., "SmartCash: a Practical Electronic Payment System", pp. 1-8; Aug. 1990.
American National Standard, "Financial Institution Retail Message Authentication", ANSI X9.19 1986.
American National Standard, "Interchange Message Specification for Debit and Credit Card Message Exchange Among Financial Institutions", ANSI X9.2-1988.
Chaum et al; "Achieving Electronic Privacy", Scientific American, pp. 319-327; 1988.
Burk et al, "Value Exchange Systems Enabling Security and Unobservability", Computers & Security, 9 1990, pp. 715-721.
Chaum et al, "Untraceable Electronic Cash", Advances in Cryptology, 1988, pp. 319-327.
Schamuller-Bichl, I., "IC-Cards in High-Security Applications", in Selected Papers from the Smart Card 2000 Conference, Springer Verlag, 1991, pp. 177-199.
Newman, B.C., "Proxy-Based Authorization and Accounting for Distributed Systems", Proc. 13th Int. Conf. on Dist. Comp. Sys., May 1993.
Medvinsy et al., "Electronic Currency for the Internet", Electronic Markets, pp. 30-31, Sep. 1993.
Ross J. Anderson, "UEPS --A Second Generation Electronic Wallet", Proc. of the Second European Symposium on Research in Computer Security (ESORICS), Touluse, France, pp. 411-418, Touluse, France.
Ross Anderson, "Why Cryptosystems Fail", Proc. 1st Conf. Computer and Comm. Security, pp. 215-227, Nov. 1993.
Semyon Dukach, "SNPP: A Simple Network Payment Protocol", MIT Laboratory for Computer Science, Cambridge, MA, 1993.
Medvinsy et al, "NetCash: A Design for Practical Electronic Currency on the Internet", Proc. 1st ACM Conf. on Comp. and Comm. Security, Nov. 1993.
Society for Worldwide Interbank Financial Telecommunications S.C., "A.S.W.I.F.T. Overview", undated.
Case Study: The CIRRUS Banking Network, Comm. ACM 8, 28 pp. 7970-8078, Aug. 1985.
Intel Corporation, iPower Technology, Marketing Brochure, date unknown.
M. Bender, "EFTS: Electronic Funds Transfer Systems", Kennikat Press, Port Washington, New York, p
Cam David C.
Open Market, Inc.
LandOfFree
Digital active advertising does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital active advertising, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital active advertising will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2256340