Publication Type

Conference Proceeding Article

Version

publishedVersion

Publication Date

6-2010

Abstract

Web advertisers prefer the cost-per-action (CPA) advertisement model whereby an advertiser pays a web publisher according to the actual amount of transactions, rather than the volume of advertisement clicks. The main obstacle for a wide deployment of this model is the deflation fraud. Namely, a dishonest advertiser under-reports the transaction count in order to discharge less. In this paper, we present a mechanism to detect such a fraud using a hybrid of cryptography and probability tools. With the assistance from a small number of users, the publisher can detect deflation fraud with a success probability growing exponentially with the fraud amount, and can estimate the amount of frauds. Our scheme is amiable to both the advertiser and the users because the existing transaction model remains unchanged. It is also efficient and scalable as the incurred communication, computation and storage costs are independent of the number of transactions.

Discipline

E-Commerce | Information Security

Research Areas

Information Security and Trust

Publication

Applied cryptography and network security: 8th International Conference, ACNS 2010, Beijing, China, June 22-25: Proceedings

Volume

6123

First Page

545

Last Page

562

ISBN

9783642137082

Identifier

10.1007/978-3-642-13708-2_32

Publisher

Springer

City or Country

Berlin

Copyright Owner and License

Authors

Additional URL

https://doi.org/10.1007/978-3-642-13708-2_32

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