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J. A. Onieva, J. Lopez, R. Roman, J. Zhou, and S. Gritzalis, "Integration of non-repudiation services in mobile DRM scenarios",
Telecommunications Systems, vol. 35, pp. 161-176, September, 2007. More..

Abstract

In any kind of electronic transaction, it is extremely important to assure that any of the parties involved can not deny their participation in the information exchange. This security property, which is called non-repudiation, becomes more important in Digital Rights Management (DRM) scenarios, where a consumer can freely access to certain contents but needs to obtain the proper Right Object (RO) from a vendor in order to process it. Any breach in this process could result on financial loss for any peer, thus it is necessary to provide a service that allows the creation of trusted evidence. Unfortunately, non-repudiation services has not been included so far in DRM specifications due to practical issues and the type of content distributed. In this paper we analyze how to allow the integration of non-repudiation services to a DRM framework, providing a set of protocols that allows the right objects acquisition to be undeniable, alongside with a proof-of-concept implementation and a validation process.

PDF icon JoseA.Onieva2007a.pdf (292.68 KB)
M. Carbonell, J. A. Onieva, J. Lopez, D. Galpert, and J. Zhou, "Timeout Estimation using a Simulation Model for Non-repudiation Protocols",
2nd Workshop on Internet Communications Security (WICS’04), (within Computational Science and its Applications International Conference), LNCS 3043, Springer, pp. 903-914, May, 2004. More..

Abstract

An essential issue for the best operation of non-repudiation protocols is to figure out their timeouts. In this paper, we propose a simulation model for this purpose since timeouts depend on specific scenario features such as network speed, TTP characteristics, number of originators and recipients, etc. Based on a one-to-many Markowicth’s protocol simulation model as a specific example, we have worked out various simulation experiments.

PDF icon MildreyCarbonell2004.pdf (324.28 KB)
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