Lecture 11

• Electronic Commerce and Payments .
• Internet Commerce Estimates .
• Electronic Commerce .
• Internet Support for Commerce .
• Internet Payment Transaction Ranges .
• Electronic Information Market Structures .
• Advertising on the Web .
• Payment Systems .
• Financial Transaction System-Cost Structure .
• Payment System Costs .
• Transaction costs: key issues .
• Risk Management in Electronic Payment .
• Risk Management Issues in Electronic Payment .
• Domains of Trust .
• Domains of Trust: Credit Cards .
• Examples .
• Internet-Based Payment Models .
• Credit Card Info Sent Direct to Merchant (Netscape Model) .
• Third Party Intermediary Model (CyberCash) .
• CyberCash Credit Card Transactions .
• Cybercash Protocol .
• Credit Card Acquirer On the Net (SET) .
• SET Protocol .
• Why Has SET Been Delayed? .
• Digicash Model .
• Approach: Digital Checks .
• Electronic Check Concept .
• FSTC Electronic Check .
• Approach: Online Aggregation Accounts .
• CyberCash .
• GlobeID .
• NetBill .
• NetBill Protocol .
• Strong Service Guarantees .
• Secure Communication Using PK-Kerberos .
• Traditional Kerberos .
• Public Key Kerberos .
• PK Kerberos (via TGS) .
• Improving Privacy in NetBill .
• NetBill Protocol .
• Flexible Pricing Examples .
• Subscription Management System .
• Two Methods to Support Subscriptions .
• Subscription Management System .
• Site Licenses and Third Party Discounts .
• Credential Examples .
• Trading Off Risk and Computation .
• Lessons Learned .
• Subscriptions versus Micropayments .
• Getting Wallets to Consumers .
• CyberCash Agile Wallet .
• Integrating Wallet Software with Browser .
• Integrating Wallet Software with Browser: Approaches .
• Key Management and Multiple Machines .
• Problematic Solutions to Local State Problem .
• NetBill's Approach to Portability .
• NetBill Key Repository Protocol .
• Improved Repository Protocol (not implemented) .
• Additional Portability Steps .
• Selling Digital Goods versus Selling Keys .
• When to Authenticate Consumer? .
• Authentication Issues .
• Keys to Future of Electronic Payments .
• Keys to Future of Electronic Payments .

Back to Lectures

Heather L. Marko
Last Modified: November 1998