Secondary and Approximate Authorization Model (SAAM) and its Application to...
The talk defines the secondary and approximate authorization model (SAAM). In SAAM, approximate authorization responses are inferred from cached primary responses, and therefore provide an alternative...
View ArticleResource Access Decision Service for CORBA-based Distributed Systems
Decoupling authorization logic from application logic allows applications with fine-grain access control requirements to be independent from a particular access control policy and from factors that are...
View ArticleAnalysis of Interdependencies between CITI and other Critical Infrastructures...
* Objectives * Information Requirement for CITI Failure Analysis * Use of Public Domain Failure Reports * Existing Classification Methods * Our Method of Classification and Analysis * Results of our...
View ArticleAssessment of Interdependencies between Communication and Information...
Failure in Communication and Information Technology Infrastructure (CITI) can disrupt the effective functionalities of many of the critical infrastructures. Conversely, failures in other...
View ArticleExtending XP Practices to Support Security Requirements Engineering
This paper proposes a way of extending eXtreme Programming (XP) practices, in particular the original planning game and the coding guidelines, to aid the developers and the customer to engineer...
View ArticleHOT Admin: Human, Organization, and Technology Centred Improvement of the IT...
While cryptography, access control, accountability, and other security technologies have received a great deal of attention, to our knowledge this is the first attempt to address systematically the...
View ArticleSaamViz - Visualizer for SAAM
The purpose of the project is to create a visualization component for the secondary and approximate authorization model (SAAM) simulator to assist in the study of SAAM. This visualization component,...
View ArticlePerforce Installation Guide
This document provides a simple guide on how to install perforce in Windows platform.
View ArticleThe Secondary and Approximate Authorization Model and its Application to...
We introduce the concept, model, and policy-specific algorithms for inferring new access control decisions from previous ones. Our secondary and approximate authorization model (SAAM) defines the...
View ArticleEvaluation of SAAM_BLP
Request response access control systems that use Policy Decision Points have their reliability and latency bounded by network communication. We propose the use of a secondary decision point that...
View ArticleCooperative Secondary Authorization Recycling
As distributed enterprise systems scale up and become increasingly complex their authorization infrastructures are facing new challenges. Conventional request-response authorization architectures...
View ArticleMultiple-Channel Security Architecture and Its Implementation over SSL
This paper presents multiple-channel SSL (MC-SSL), an architecture and protocol for protecting client-server communications. In contrast to SSL, which provides a single end-to-end secure channel,...
View ArticleUsable Security: Quo Vadis?
The presentation discusses the current state of HCISec and challanges for future research.
View ArticleTowards Agile Security Assurance
Agile development methods are promising to become the next generation replacing waterfall development. They could eventually replace the plan-driven methodologies not only in pure software solutions in...
View ArticleIdentification of Sources of Failures and Their Propagation in Critical...
Survival in our society relies on continued services from interdependent critical infrastructures. CITI failures are particularly pervasive in their penetration of all infrastructures and can have a...
View ArticleIssues in the Security Architecture of the Computerized Patient Record...
We discuss issues in CPR enterprise security architecture. The main goal is to provide a security environment where a user will be viewed the same across all enterprise systems, and access control...
View ArticleThe Secondary and Approximate Authorization Model and its Application to...
The request-response paradigm used for access control solutions commonly leads to point-to-point (PTP) architectures, with security enforcement logic obtaining decisions from authorization servers...
View ArticleEmploying Secondary and Approximate Authorizations to Improve Access Control...
The request-response paradigm used for developing access control solutions commonly leads to point-to-point (PTP) architectures, with security enforcement logic obtaining decisions from authorization...
View ArticleA Security Analysis of the Precise Time Protocol (Short Paper)
This paper reports on a security analysis of the IEEE 1588 standard, a.k.a. Precise Time Protocol (PTP). We show that attackers can use the protocol to (a) incorrectly resynchronize clocks, (b)...
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