Authors:
Cătălin V. Bîrjoveanu
1
and
Mirela Bîrjoveanu
2
Affiliations:
1
Department of Computer Science, “Al.I.Cuza” University of Iaşi, Iaşi and Romania
;
2
Continental Automotive, Iaşi and Romania
Keyword(s):
Electronic Commerce Security, Complex Transactions, Fair Exchange, Security Protocols.
Related
Ontology
Subjects/Areas/Topics:
Applied Cryptography
;
Cryptographic Techniques and Key Management
;
Data Engineering
;
Databases and Data Security
;
Information and Systems Security
;
Security in Information Systems
;
Security Protocols
;
Security Requirements
Abstract:
In this paper, we define the concept of complex transaction as a combination in any form of aggregate and optional transactions. Even if there are many multi-party fair exchange protocols with applications in buying digital goods, digital signature of contracts and certified e-mail, no one can be used to solve our problem: complex transactions where a customer wants to buy several physical products from different merchants, providing fair exchange while preserving atomicity. In this paper, we propose the first fair exchange e-commerce protocol for complex transactions in that the customer wants to buy several different physical products from different merchants. Our protocol uses as building block the fair exchange internet payment protocol (FEIPS) for physical products that considers only one customer and one merchant. Also, our protocol provides effectiveness, timeliness, non-repudiation, integrity and confidentiality of data exchanged between the parties.