Internet commerce continues to grow rapidly. Over 60% of US households use the internet to shop online. A secure payment protocol is required to support this rapid growth. A new payment protocol was recently invented at IBM. We refer to the protocol as SPP or Secure Payment Protocol. This thesis presents a protocol analysis of SPP. It is essential that a thorough security analysis be done on any new payment protocol so that we can better understand its security properties. We first develop a method for analyzing payment protocols. This method includes a list of desirable security features and a list of proofs that should be satisfied. We then present the results of the analysis. These results validate that the protocol does contain many security features and properties. They also help understand the security properties and identify areas where the protocol can be further secured. This led us to extend the design of the protocol to enhance its security. This thesis also presents a prototype implementation of SPP. Three software components were implemented. They are the Electronic Wallet component, the merchant software component and the Trusted Third Party component. The architecture and technologies that are required for implementation are discussed. The prototype is then used in performance measurement experiments. Results on system performance as a function of key size are presented. Finally, this thesis presents an extension of SPP to support a two buyer scenario. In this scenario one buyer makes an order while another buyer makes the payment. This scenario enables additional commerce services.

Internet commerce continues to grow rapidly. Over 60% of US households use the internet to shop online. A secure payment protocol is required to support this rapid growth. A new payment protocol was recently invented at IBM. We refer to the protocol as SPP or Secure Payment Protocol. This thesis presents a protocol analysis of SPP. It is essential that a thorough security analysis be done on any new payment protocol so that we can better understand its security properties. We first develop a method for analyzing payment protocols. This method includes a list of desirable security features and a list of proofs that should be satisfied. We then present the results of the analysis. These results validate that the protocol does contain many security features and properties. They also help understand the security properties and identify areas where the protocol can be further secured. This led us to extend the design of the protocol to enhance its security. This thesis also presents a prototype implementation of SPP. Three software components were implemented. They are the Electronic Wallet component, the merchant software component and the Trusted Third Party component. The architecture and technologies that are required for implementation are discussed. The prototype is then used in performance measurement experiments. Results on system performance as a function of key size are presented. Finally, this thesis presents an extension of SPP to support a two buyer scenario. In this scenario one buyer makes an order while another buyer makes the payment. This scenario enables additional commerce services.

This work focuses on the analysis of Internet info and literature about e-commerce systems, shops, supply chain systems and enterprise resource planing systems and create the framework of sales in the web with ready to use elements, database, based on REA semantic model for Internet supply chain collaboration. The research material leads to the conclusion that REA model is the best model for Internet commerce and Lithuanian Internet trading systems are not fully ready for competition on the Internet market. However, the work suggests the solution for the problems detected in LT websites, which deal with Internet sales.

The Internet has changed the world. Its impact on the global society has been enormous, redefining almost every aspect of our life. It has also added a new quality to traditional commerce that in many instances has drastically transformed the way companies and individuals trade. However, electronic commerce is not a legally safe environment, as there exists a regulatory gap that introduces uncertainty surrounding rights and obligations in cyberspace. This may result in unexpected outcomes for e-commerce participants involved in litigation.

The Internet has changed the world. Its impact on the global society has been enormous, redefining almost every aspect of our life. It has also added a new quality to traditional commerce that in many instances has drastically transformed the way companies and individuals trade. However, electronic commerce is not a legally safe environment, as there exists a regulatory gap that introduces uncertainty surrounding rights and obligations in cyberspace. This may result in unexpected outcomes for e-commerce participants involved in litigation.

The world business has been changed tremendously during last thirteen year. This is all due to the revolutionary dot com digital business. The dot com digital business has given big swing to world business. No one now can deny the power and capabilities of the internet technology. However, from 2001 onwards the growth of internet business has declined. Our paper investigates the major reasons behinds this. The focus of our paper is south Asian market because we believe this region has more potential of growth within internet business as compare to any other part of the world. The focal point of our paper is to identify obstacles which are hindering the growth of service based internet commerce in south Asian market. We have also come up with the possible solutions which when applied can create a room for big growth of internet business.

The goal of this project is to explore the problem of product recommendations in the area of e-commerce and to evaluate known techniques, design product recommendation system for an existing e-commerce site, implement it and test it. This report introduces the problem, briefly examines current state of affairs in this area and defines requirements for a product recommendation module. The concept of data mining in general is introduced. The report proceeds to present detailed design corresponding to defined requirements and summarizes data gathered during testing phase. It concludes with evaluation and with discussion of the remaining goals for this thesis.

The thesis deals with the analysis of selling method for special literature and suggests the solution how to realize electronic commerce in condition of minimal costs. It concentrates on the offer propagation using online tools and social networks, and gives the instruction how to deal with the solution of selling on the internet.

That trust is established between buyer and seller has long been seen as one of the most crucial factors in order for a transaction to occur. Despite this, a general model for how intermediaries on the internet can act to create trust between the parties of their platform is missing. To solve this the method has consisted of a literature study focused on current theories regarding the building of trust as well as a case study on a number of different existing intermediaries’ solutions for trust building. The result of the work is divided into two parts, one which is a general model for building trust based on the two mentioned studies, and an implementation of said model on a specific company working with mediation of tattoos, as well as a general implementation on intermediaries handling tattoos. The conclusion is that, based on the existing theories and the case studies, it has been possible to create a model for the building of trust derived from a number of crucial factors as well as accounting for the character of the transaction. The implementation on the already existing platform showed the challenges in applying the model with external limitations, but also resulted in several proposed improvements for the company’s platform. / Att förtroende skapas mellan köpare och säljare har länge setts som en av de absolut viktigaste faktorerna för att en transaktion ska ske. Trots detta har det saknats en överblickande modell för hur förmedlingstjänster på internet kan verka för att skapa förtroende mellan de aktörer som agerar på deras plattform. För att angripa detta har metoden bestått av dels en litteraturstudie fokuserad på rådande teorier inom förtroendebyggande och marknadsplatser samt en fallstudie på ett antal olika existerande förmedlingstjänsters hantering av förtroendebyggande. Resultatet i arbetet är uppdelat i två delar, dels en generell modell för förtroendebyggande utformad med grund i de båda studierna, samt en implementation av nämnd modell på ett fallföretag som arbetar med att förmedla tatueringar, samt en generell implementation för förmedlingstjänster i tatueringsbranschen. Slutsatsen är att det, baserat på den existerande teorin och fallstudien, varit möjligt att utforma en modell för förtroendebyggande utifrån ett antal viktiga faktorer samt karaktären på transaktionen. Implementationen på den redan existerande lösningen visade på utmaningarna i att applicera modellen utifrån givna begränsningar, men har också gett upphov till en rad förslag för förbättring av fallföretagets plattform.

The work deals with internet commerce. It includes analysis and design their own e-shop. The aim was to bring the marketing plan for market entry, assess the achievements and propose a procedure to other years. It can be familiar with basic knowledge about internet marketing, internet business analysis in comparison with the stone business. These general theoretical and practical knowledge is given to about half the work. In the second half is giving its own Internet business, the introduction of the marketing and promotion.