![]() This thesis will go on to explore and evaluate these giant cloud services and analyse their vulnerabilities and the impacts they proffer. Amazon EC2 and Dropbox are some of the major cloud services out there and they have been riddled with vulnerabilities in recent times. We will analyse the most famous issues of cloud security today and see the implications they possess and pose to both cloud service users and providers. There are not many comprehensive texts out there that essentially brings together the description of its security issues and the analysis of the attack models that occur on some of its services and this thesis aims to do just that. But of ever since its inception, it has been festered with so many security and privacy issues that makes it seem like a nonviable solution after all. We would like to thank all those authors whose participation in this endeavor contributed to its success, hoping it will promote a better understanding of the issues that were addressed.Ĭloud computing, the latest buzzword in IT, has brought about many benefits to the world of both enterprise and individual computing. This challenge, which takes the shape of a book, is the natural result of these principles put into practice. This has proven to be an exciting challenge. Persistence and strong motivation constitute the driving force which stimulates students of Supplementary Networking Course, Informatics Engineering degree, from the Lusofona University of Porto (ULP), to the creation of scientific papers related to this field of study, to the promotion of research, and to the knowledgeable discussion and practical demonstration on a variety of issues addressed, particularly in the context of computer science and computer networks. In this sense, young students that devote themselves to research deserve our praise for their efforts in the search of new knowledge and better intellectual and technical skills. We are currently living in an information society constantly updated where we believe that hope and more knowledge come from wiser people. We take this knowledge for our future and believe that every person enrolled with this conference has improved its knowledge. Regardless of its small size, it demanded our commitment and hard work but also delivered the proudness of seen the successful concretization of our plans. ![]() Organizing this conference proved to be a challenging opportunity for us to achieve this goal. The main goal of a scientific event is to discuss, disseminate and create knowledge. ![]() At several thousand tenants, our prototype incurs limited performance overhead below 21%, unlike a solution from industry whose multitenancy overhead approaches 84% in some cases.ĭigital Privacy and Security Conference 2018 organization and Scientific Committees welcome you to the first conference. We alternatively use a local cluster and a public cloud to experimentally evaluate a Dike prototype implementation that we developed. We introduce secure protocols to authenticate the participating entities and authorize the data access over the network. It combines native access control with tenant namespace isolation and compatibility to object-based filesystems. Then we introduce the design of the Dike authorization architecture. First we define the entities involved in a multitenant filesystem and present relevant security requirements. The scalable deployment of filesystems in such environments is challenging due to intermediate translation layers required for networked file access or identity management. In a virtualization environment that serves multiple tenants (independent organizations), storage consolidation at the filesystem level is desirable because it enables data sharing, administration efficiency, and performance optimizations.
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