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Towards Enabling Web 2.0 Content Sharing Beyond Walled Gardens

Web 2.0 users have many choices of content-hosting or application-service providers (CSPs). It can be difficult for a user to share content with a set of real-life friends and associates; intended...

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Retrofitting Existing Web Applications with Effective Dynamic Protection...

This paper presents an approach for retrofitting existing web applications with run-time protection against known as well as unseen SQL injection attacks (SQLIAs) without the involvement of application...

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Effectiveness of IT Security Tools in Practice

In today's world, IT security plays a critical role in different organizations, yet little is known about IT security in the context of organizations. This paper addresses this issue based on...

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Revealing Hidden Context: Improving Users' Mental Models of Personal Firewalls

Windows Vista’s personal firewall provides its diverse users with a basic interface that hides many operational details. However, our study of this interface revealed that concealing the impact of...

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Towards Understanding Diagnostic Work During the Detection and Investigation...

This study investigates how security practitioners perform diagnostic work during the identification of security incidents. Based on empirical data from 16 interviews with security practitioners, we...

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A Multi-method Approach for User-centered Design of Identity Management Systems

Identity management (IdM) comprises the processes and infrastructure for the creation, maintenance, and use of digital identities. This includes designating who has access to resources, who grants that...

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Authorization Recycling in RBAC Systems

As distributed applications increase in size and complexity, traditional authorization mechanisms based on a single policy decision point are increasingly fragile because this decision point represents...

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Authorization Using the Publish-Subscribe Model

Traditional authorization mechanisms based on the request-response model are generally supported by point-to-point communication between applications and authorization servers. As distributed...

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Support for ANSI RBAC in EJB

We analyze access control mechanisms of the Enterprise Java Beans (EJB)architecture and define a configuration of the EJB protection system in a more precise and less ambiguous language than the EJB...

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Secure Web 2.0 Content Sharing Beyond Walled Gardens

Web 2.0 users need usable mechanisms for sharing their content with each other in a controlled manner across boundaries of content-hosting or application-service providers (CSPs). In this paper, we...

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Towards Investigating User Account Control Practices in Windows Vista

This poster presents the research plan for investigating user account control practices in Windows Vista. The research will explore end users' behaviours in using user account types acrossWindows Vista...

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Towards Improving the Availability and Performance of Enterprise...

Authorization protects application resources by allowing only authorized entities to access them. Existing authorization solutions are widely based on the request-response model, where a policy...

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A Case Study of Enterprise Identity Management System Adoption in an...

This case study describes the adoption of an enterprise identity management(IdM) system in an insurance organization. We describe the state of the organization before deploying the IdM system, and...

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Towards Developing Usability Heuristics for Evaluation of IT Security...

Evaluating the usability of specific information technology (IT) security tools is challenging. For example, laboratory experiments can have little validity due to the complexity of real-world security...

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Preparation, detection, and analysis: the diagnostic work of IT security...

Purpose — The purpose of this study is to examine security incident response practices of IT security practitioners as a diagnostic work process, including the preparation phase, detection, and...

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Security Research Advances in 2009

This presentation reviews latest scientific conference reports on the cutting edge research in computer security. It presents and explains 2009 highlights from such top world annual research...

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Authorization Recycling in Hierarchical RBAC Systems

As distributed applications increase in size and complexity, traditional authorization architectures based on a dedicated authorization server become increasingly fragile because this decision point...

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An RT-based Policy Model for Converged Networks

Technologies advanced in communication devices and wireless networks enable telecommunication network operators to provide rich personalized multimedia services. To attract potential customers and...

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Poster: OpenIDemail Enabled Browser

Today's Web is site-centric. Web users have to maintain a separate copy of user ID and password for each website, which leads to weaker passwords and password re-use across accounts. Currently,...

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Investigating an Appropriate Design for Personal Firewalls

Personal firewalls are an important aspect of security for home computer users, but little attention has been given to their usability. We conducted semi-structured interviews to understand...

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Investigating User Account Control Practices

Non-administrator user accounts and the user account control (UAC) approach of Windows Vista are two practical solutions to limit the damage of malware infection. UAC in Windows Vista supports usage of...

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SIMD-Scan: Ultra Fast in-Memory Table Scan Using on-Chip Vector Processing Units

The availability of huge system memory, even on standard servers, generated a lot of interest in main memory database engines. In data warehouse systems, highly compressed column-oriented data...

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Open problems in Web 2.0 user content sharing

Users need useful mechanisms for sharing their Web 2.0 content with each other in a controlled manner across boundaries of content-hosting and service providers (CSPs). In this paper, we discuss open...

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Analysis of ANSI RBAC Support in COM+

We analyze access control mechanisms of the COM+ architecture and define a configuration of the COM+ protection system in more precise and less ambiguous language than the COM+ documentation. Using...

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Do Windows Users Follow the Principle of Least Privilege? Investigating User...

The principle of least privilege requires that users and their programs be granted the most restrictive set of privileges possible to perform required tasks in order to limit the damages caused by...

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