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SenGuard: Passive User Identification on Smartphones Using Multiple Sensors

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Towards ACPeer: an Access Control aware P2P System

P2P data management systems provide a scalable alternative to centralized architectures. Their adoption, however, is limited by the lack of possibility to control the access on the resources stored in the system. We address the problem of access control fo ...

2008

Privacy of Recent RFID Authentication Protocols

Khaled Ouafi

Privacy is a major concern in RFID systems, especially with widespread deployment of wireless-enabled interconnected personal devices e.g. PDAs and mobile phones, credit cards, e-passports, even clothing and tires. An RFID authentication protocol should no ...

Springer2008

Data security in location-aware applications: an approach based on RBAC

Maria Luisa Damiani

Data security in a mobile context is a critical issue. Over the last few years a new category of location-based services, the Enterprise LBS (ELBS), has emerged focusing on the demands of mobility in organisations. These applications pose challenging requi ...

2007

Concurrent Direct Network Access for Virtual Machine Monitors

Willy Zwaenepoel, Aravind Menon

This paper presents hardware and software mechanisms to enable concurrent direct network access (CDNA) by operating systems running within a virtual machine monitor. In a conventional virtual machine monitor, each operating system running within a virtual ...

2007

Optimizing Network Virtualization in Xen

Willy Zwaenepoel, Aravind Menon

BEST PAPER AWARDIn this paper, we propose and evaluate three techniques for optimizing network performance in the Xen virtualized environment. Our techniques retain the basic Xen architecture of locating device dri ...

2006

Lucky Read/Write Access to Robust Atomic Storage

Rachid Guerraoui, Marko Vukolic, Ron Levy

This paper establishes tight bounds on the \emph{best-case} time-complexity of distributed atomic read/write storage implementations that tolerate \emph{worst-case} conditions. We study asynchronous robust implementations where a writer and a set of reader ...

2006

Diagnosing Performance Overheads in the Xen Virtual Machine Environment

Willy Zwaenepoel, Aravind Menon

Virtual Machine (VM) environments (e.g., VMware and Xen) are experiencing a resurgence of interest for diverse uses including server consolidation and shared hosting. An application's performance in a virtual machine environ- ment can differ markedly from ...

2005

JPSEC for Secure Imaging in JPEG 2000

Touradj Ebrahimi

In this paper, we first review the on-going JPSEC standardization activity. Its goal is to extend the baseline JPEG 2000 specification to provide a standardized framework for secure imaging, in order to support tools needed to secure digital images, such a ...

SPIE2004

Advances in Internet Quality of Service

Jean-Yves Le Boudec

We describe recent advances in theories and architecture that support performance guarantees needed for quality of service networks. We start with deterministic computations and give applications to integrated services, differentiated services, and playbac ...

2001

IO-Lite: a unified I/O buffering and caching system

Willy Zwaenepoel

This article presents the design, implementation, and evaluation of IO -Lite, a unified I/O buffering and caching system for general-purpose operating systems. IO-Lite unifies all buffering and caching in the system, to the extent permitted by the hardware ...

2000