Cloud computing recently became the key element of providing services via the internet. Cloud technology is new paradigm of computing where available computing resources are delivered as a service. These resources are generally offered under the concept of pay-as-you-use. Nowadays, some of e-commerce companies move to Cloud services. Cloud offers positive opportunities for ecommerce companies w...

End-user computing requires that end-users trust the system and the results obtained by its use. The approach we have elaborated at the Pictorial Computing Laboratory of the University of Rome "La Sapienza" is the result of several experiments through the years in design and use of enduser visual computing systems and is aimed at improving the system trustworthiness. To this end, our approach a...

Control is a major issue in end-user computing. The migration of responsibility, resources and authority from IT departments to user departments is frequently seen as a loss of power by the IT departments and an erosion of cost control by senior management. Reactions to this situation tend to focus on technology and formal control mechanisms. This paper contrasts such an IT-oriented view with a...

We present CONIKS, an end-user key verification service capable of integration in end-to-end encrypted communication systems. CONIKS builds on transparency log proposals for web server certificates but solves several new challenges specific to key verification for end users. CONIKS obviates the need for global third-party monitors and enables users to efficiently monitor their own key bindings ...

Cloud Computing is a very recent term which is mainly based on distributed computing, virtualization, utility computing, networking and web and software services. This kind of service oriented architecture reduces information technology overhead for end user, total cost of ownership, supports flexibility and on-demand services. KeywordsCloud Computing, Grid Computing, IaaS, PaaS, SaaS.

The user experience for networked applications is becoming a key benchmark for customers and network providers when comparing, buying and selling alternative services. There is thus a clear need to detect, isolate and determine the root causes of network events that impact end-to-end performance and the user experience so that operators can resolve such issues in a timely manner. We argue that ...

While the revolutionary cloud computing paradigm offers substantial benefits to businesses, recent data breaches and the lack of dedicated end-to-end security solutions refrain the rapid adoption of this technology. The TREDISEC project aims at increasing trust in cloud computing by designing new security primitives ensuring data security and user privacy and supporting the underlying storage a...

Following both theoretical and practical arguments, we construct UC-secure bit-commitment protocols that place their strength on the sender’s side and are built using tamper-evident devices, e.g., a type of distinguishable, sealed envelopes. We show that by using a second formalisation of tamper-evident distinguishable envelopes we can attain better security guarantees, i.e., EUC-security. We s...

Pandemi Covid-19 membuat lembaga-lembaga pendidikan mengubah cara mereka dalam melaksanakan proses kegiatan belajar-mengajar. Proses belajar-mengajar berubah dari tatap muka secara langsung menjadi jaringan (daring). Kebutuhan akan sistem yang dapat menunjang perubahan ini sangat dibutuhkan. Menanggapi kebutuhan itu, Universitas Islam Negeri Mataram sebagai salah satu lembaga pendidikan, memanf...