Abstract
With the rapid development of the cloud computing service, utilizing traditional access control models was difficult to meet the complex requirements of data protection in cloud environment. In cloud environment, the definition of data and its protection are gradually varied when contents shifting from one virtual machine to another; in these new scenarios, the multi-tenancy pattern has been taken as a core attribute. For this reason, many users need to change their roles according to different situations; certifications has impact much more complicated challenges in cloud environment while access control was suitable for the static status but no longer for the changing situation. In this paper, a new usage control protocol model--multi-UCON (MUCON) based on usage control (UCON), combined with encryption technology and the digital watermarking technology, is proposed with the characteristics of flexible accrediting, feature binding, and off-line controlling. The analysis and simulation experiments indicate that the proposed protocol model is secure, reliable, and easy to be implemented, which can be deployed in cloud computing environments for data protection.
Highlights
Cloud computing is a more flexible, cost effective, and proven delivery platform for providing business or consumer service over the internet and intranet compared with traditional network platforms
Most of the researches of usage control (UCON) are concentrated on the basic conceptual level at present, where the theory is almost not considered of cloud computing
We proposed a new usage control protocol model, namely multi-UCON (MUCON) with secure dynamic authentication and authorization mechanisms, including three authorization models, machine to machine coding, sharing with one user domain, and making the rights transfer under controlled as well as flexible accrediting which can be applied
Summary
Cloud computing is a more flexible, cost effective, and proven delivery platform for providing business or consumer service over the internet and intranet compared with traditional network platforms. Access controls take a significant role of data protection nowadays, but traditional access controls cannot authorize users to fully and thoroughly control their data anytime and anywhere across platforms and networks. Some researchers propose usage control (UCON) to resolve data security issues [1,2,3,4]; nowadays, the development of UCON technologies has been approached through two stages, namely traditional access control stage and modern. We proposed a new usage control protocol model, namely multi-UCON (MUCON) with secure dynamic authentication and authorization mechanisms, including three authorization models, machine to machine coding, sharing with one user domain, and making the rights transfer under controlled as well as flexible accrediting which can be applied. Embedded in the digital content with digital watermarking of strong robustness for copyright information is to ensure that digital content is illegal in cracking the case of the responsibility of the user, making the protection of digital content more completeness
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