Identification of sources of failures and their propagation in critical...
Understanding the origin of infrastructure failures and their propagation patterns in critical infrastructures can provide important information for secure and reliable infrastructure design. Among the...
View ArticlePoster: Towards Secure Web 2.0 User 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...
View ArticleSpeculative Authorizations
In a large-scale enterprise system, making authorization decisions is often computationally expensive due to the complexity of the policies involved and the large size of the resource and user...
View ArticleToward Improving Availability and Performance of Enterprise Authorization...
In currently deployed large enterprise systems, policy enforcement points (PDPs) are commonly implemented as logically centralized authorization servers. This centralization provides important...
View ArticleRevealing Hidden Context: Improving Mental Models of Personal Firewall Users
The Windows Vista personal firewall provides its diverse users with a basic interface that hides many operational details. However, concealing the impact of network context on the security state of...
View ArticlePoster: Toward Enabling 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...
View ArticleTowards 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 presentation,...
View ArticleOpen 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...
View ArticleRevealing Hidden Context: Improving Mental Models of Personal Firewall Users
The Windows Vista personal firewall provides its diverse users with a basic interface that hides many operational details. However, concealing the impact of network context on the security state of the...
View ArticleTowards 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...
View ArticleRetrofitting 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...
View ArticleRevealing 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...
View ArticleTowards 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...
View ArticleA 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...
View ArticleAuthorization 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...
View ArticleAuthorization 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...
View ArticleSupport 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...
View ArticleSecure 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...
View ArticleA 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...
View ArticleTowards 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...
View ArticlePreparation, 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...
View ArticleSecurity 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...
View ArticleAuthorization 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...
View ArticleAn 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...
View ArticlePoster: 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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