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| Authors: | Hasan Hasan, Burkhard Stiller |
| Group: | Communication Systems |
| Type: | Techreport |
| Title: | Non-repudiation of Service Consumption |
| Year: | 2004 |
| Month: | December |
| Pub-Key: | HS04a |
| Keywords: | Evidence, Mobile Internet, Non-repudiation, Privacy, Security, Service Consumption |
| Rep Nbr: | 209 |
| Abstract: | Today’s Internet technology is able to support different Quality-of-Service (QoS) classes to meet different application and user requirements. Combined with the support of user mobility, service providers can offer differentiated services not only to their own customers, but also to roaming users. This service offer is accompanied normally by more complex pricing schemes which require a complex accounting of the real service consumption. It is important that the commercial provisioning of Internet services needs to meet security requirements of service providers as well as service users. Besides the access control to services, the dedicated service consumption must be provable to justify billing and to protect users and providers against other malicious parties. This paper develops an architecture termed NorCIS (Nonrepudiation of the Consumption of Internet Services) and its detailed protocol interactions which allow for the generation and transfer of non-repudiation evidences of service consumptions in a mobile Internet Protocol (IP)-based environment. The respective evidence structure is proposed, which supports a variety of accounting schemes, and which includes information to be used for protection against various attacks. In addition, NorCIS proposes the use of virtual identifiers within evidences to support the privacy of users’ identities. |
| Resources: | [BibTeX] [Paper as PDF] |
