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SECURITY IN ELECTRONIC CONTRACTING BASED ON WEB SERVICES

SECURITY IN ELECTRONIC CONTRACTING BASED ON WEB SERVICES. INTRODUCTION. ELECTRONIC COMMERCE Importance as a sales and business channel: benefits to customers and providers. Security of transactions and lack of an adequate legal framework, slows e-commerce growth.

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SECURITY IN ELECTRONIC CONTRACTING BASED ON WEB SERVICES

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  1. SECURITY IN ELECTRONIC CONTRACTING BASED ON WEB SERVICES

  2. INTRODUCTION ELECTRONIC COMMERCE • Importance as a sales and business channel: benefits to customers and providers. • Security of transactions and lack of an adequate legal framework, slows e-commerce growth. • Important advances on security. • Efforts to give an adequate legal framework. • Lack of global solutions, meeting technical and legal requirements. In particular, e-contracting.

  3. INTRODUCTION Importance of Web Services • Failed efforts to achieve interoperability between parties (EDI, CORBA). • Web Services: • Focus on integration and automation. • Based on open standards. • The use of Web Services increases service level and performance.

  4. INTRODUCTION

  5. LEGAL REQUIREMENTS I From a juridical point of view, two questions have to be solved: • When is an electronic contract considered to be signed? • What elements are needed in the event of litigation?

  6. LEGAL REQUIREMENTS II European Union Directive points out to a Three Phases Model.

  7. TECHNICAL REQUIREMENTS • Electronic Signature of Contracts is a particular case of fair exchange.

  8. WEB SERVICES REQUIREMENTS • The aim of Web Services are the integration and automation of applications, with independence of platform and languages.

  9. APPLICATION EXAMPLE

  10. BUSINESS TO BUSINESS (B2B) Transaction Register: • Purchasing Online Services (plane tickets, accommodation,...) as e-contracting. Electronic Signature of Contracts: • Web Services technology allow runtime discovery and binding. • Providers require a business agreement to allow access to their services.

  11. BUSINESS TO CONSUMER (B2C) The increased use of public key certificates (DNIe) among end users and the emergence of tools that allow Web browsers to use Web Services opens the door to the use of this technology in B2C environments. • Web browsers based applications: • Legally binding register of transactions. • Increase end users trust and helps against fraud. • End user access to mobile applications.

  12. PREVIOUS WORK • Study of the technologies and standards related to Web Services. • Review of Fair Exchange proposals.

  13. PRESENT WORK “Un Servicio de Firma Digital de Contratos Basado en Servicios Web” • Nowadays, we have the tools and technology needed to build applications for Electronic Signature of Contracts based on Web Services. • The Electronic Signature of Contracts has many practical applications: transaction register, digital signature of contracts,... • Further work: obtain homogeneous solutions and adapting them to real applications.

  14. INTERMEDIARY AGENTS I In collaboration with the Infocomm Research Center (Singapore), we are developing proposals for fair exchange for agent mediated scenarios (e.g. travel agency). • The existence of Intermediaries in e-commerce transactions is very common. • We must ensure fairness end-to-end and between nodes. • Definition of 1-1 and 1-N models.

  15. INTERMEDIARY AGENTS II 1-1 Mediated Agents Model

  16. INTERMEDIARY AGENTS III 1-N Mediated Agents Model

  17. CONCLUSIONS AND FUTURE WORK

  18. THANKS FOR YOUR ATTENTION

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